1edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project/* 2edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project * Copyright (C) 2005 The Android Open Source Project 3edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project * 4edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project * Licensed under the Apache License, Version 2.0 (the "License"); 5edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project * you may not use this file except in compliance with the License. 6edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project * You may obtain a copy of the License at 7edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project * 8edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project * http://www.apache.org/licenses/LICENSE-2.0 9edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project * 10edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project * Unless required by applicable law or agreed to in writing, software 11edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project * distributed under the License is distributed on an "AS IS" BASIS, 12edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project * See the License for the specific language governing permissions and 14edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project * limitations under the License. 15edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project */ 16edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 17dcd3958c5086f757dc09472700ae7384efea7fc8Jason Parks#define LOG_TAG "IPCThreadState" 18dcd3958c5086f757dc09472700ae7384efea7fc8Jason Parks 19c5b2c0bf8007562536b822eb060fc54a01f8e08bMathias Agopian#include <binder/IPCThreadState.h> 20edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 21c5b2c0bf8007562536b822eb060fc54a01f8e08bMathias Agopian#include <binder/Binder.h> 22c5b2c0bf8007562536b822eb060fc54a01f8e08bMathias Agopian#include <binder/BpBinder.h> 23002e1e58dfe19dd3e49a59c6827cbf51573941a2Mathias Agopian#include <binder/TextOutput.h> 24002e1e58dfe19dd3e49a59c6827cbf51573941a2Mathias Agopian 25a26e1cfbbcb7dc5e0b1cd79a815362d6a048ef26Glenn Kasten#include <cutils/sched_policy.h> 26edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project#include <utils/Log.h> 2796e8322f4d11af8538d6d0db5f1a11338b8aee9dColin Cross#include <utils/SystemClock.h> 28edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project#include <utils/threads.h> 29edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 30208059f67ed2dd9fa025e07fcb6954d3cb61c79eMathias Agopian#include <private/binder/binder_module.h> 31208059f67ed2dd9fa025e07fcb6954d3cb61c79eMathias Agopian#include <private/binder/Static.h> 32edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 33edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project#include <errno.h> 3496e8322f4d11af8538d6d0db5f1a11338b8aee9dColin Cross#include <inttypes.h> 35edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project#include <pthread.h> 36edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project#include <sched.h> 378fb2d25ff3e9ade7c03ebe52a89c671ee75ce484Yabin Cui#include <signal.h> 388fb2d25ff3e9ade7c03ebe52a89c671ee75ce484Yabin Cui#include <stdio.h> 398fb2d25ff3e9ade7c03ebe52a89c671ee75ce484Yabin Cui#include <sys/ioctl.h> 40edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project#include <sys/resource.h> 418fb2d25ff3e9ade7c03ebe52a89c671ee75ce484Yabin Cui#include <unistd.h> 42edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 43edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project#if LOG_NDEBUG 44edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 45edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project#define IF_LOG_TRANSACTIONS() if (false) 46edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project#define IF_LOG_COMMANDS() if (false) 47edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project#define LOG_REMOTEREFS(...) 48edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project#define IF_LOG_REMOTEREFS() if (false) 49edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project#define LOG_THREADPOOL(...) 50edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project#define LOG_ONEWAY(...) 51edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 52edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project#else 53edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 549f760150f6e0f39b9923cfdc875373606839ee00Steve Block#define IF_LOG_TRANSACTIONS() IF_ALOG(LOG_VERBOSE, "transact") 559f760150f6e0f39b9923cfdc875373606839ee00Steve Block#define IF_LOG_COMMANDS() IF_ALOG(LOG_VERBOSE, "ipc") 569f760150f6e0f39b9923cfdc875373606839ee00Steve Block#define LOG_REMOTEREFS(...) ALOG(LOG_DEBUG, "remoterefs", __VA_ARGS__) 579f760150f6e0f39b9923cfdc875373606839ee00Steve Block#define IF_LOG_REMOTEREFS() IF_ALOG(LOG_DEBUG, "remoterefs") 589f760150f6e0f39b9923cfdc875373606839ee00Steve Block#define LOG_THREADPOOL(...) ALOG(LOG_DEBUG, "threadpool", __VA_ARGS__) 599f760150f6e0f39b9923cfdc875373606839ee00Steve Block#define LOG_ONEWAY(...) ALOG(LOG_DEBUG, "ipc", __VA_ARGS__) 60edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 61edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project#endif 62edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 63edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project// --------------------------------------------------------------------------- 64edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 65edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Projectnamespace android { 66edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 67edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Projectstatic const char* getReturnString(size_t idx); 68edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Projectstatic const void* printReturnCommand(TextOutput& out, const void* _cmd); 69edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Projectstatic const void* printCommand(TextOutput& out, const void* _cmd); 70edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 718e5337de2c67c24f1e5c6144512e2a9ba9fefe12Chih-Hung Hsieh// Static const and functions will be optimized out if not used, 728e5337de2c67c24f1e5c6144512e2a9ba9fefe12Chih-Hung Hsieh// when LOG_NDEBUG and references in IF_LOG_COMMANDS() are optimized out. 73edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Projectstatic const char *kReturnStrings[] = { 74aefc9cda45adb00ec1cb2c8fbd03c50fd48499fbAndy McFadden "BR_ERROR", 75edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project "BR_OK", 76edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project "BR_TRANSACTION", 77edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project "BR_REPLY", 78edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project "BR_ACQUIRE_RESULT", 79edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project "BR_DEAD_REPLY", 80edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project "BR_TRANSACTION_COMPLETE", 81edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project "BR_INCREFS", 82edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project "BR_ACQUIRE", 83edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project "BR_RELEASE", 84edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project "BR_DECREFS", 85edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project "BR_ATTEMPT_ACQUIRE", 86edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project "BR_NOOP", 87edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project "BR_SPAWN_LOOPER", 88edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project "BR_FINISHED", 89edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project "BR_DEAD_BINDER", 90aefc9cda45adb00ec1cb2c8fbd03c50fd48499fbAndy McFadden "BR_CLEAR_DEATH_NOTIFICATION_DONE", 91aefc9cda45adb00ec1cb2c8fbd03c50fd48499fbAndy McFadden "BR_FAILED_REPLY" 92edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project}; 93edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 94edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Projectstatic const char *kCommandStrings[] = { 95edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project "BC_TRANSACTION", 96edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project "BC_REPLY", 97edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project "BC_ACQUIRE_RESULT", 98edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project "BC_FREE_BUFFER", 99edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project "BC_INCREFS", 100edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project "BC_ACQUIRE", 101edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project "BC_RELEASE", 102edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project "BC_DECREFS", 103edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project "BC_INCREFS_DONE", 104edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project "BC_ACQUIRE_DONE", 105edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project "BC_ATTEMPT_ACQUIRE", 106edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project "BC_REGISTER_LOOPER", 107edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project "BC_ENTER_LOOPER", 108edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project "BC_EXIT_LOOPER", 109edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project "BC_REQUEST_DEATH_NOTIFICATION", 110edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project "BC_CLEAR_DEATH_NOTIFICATION", 111edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project "BC_DEAD_BINDER_DONE" 112edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project}; 113edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 114edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Projectstatic const char* getReturnString(size_t idx) 115edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project{ 116edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project if (idx < sizeof(kReturnStrings) / sizeof(kReturnStrings[0])) 117edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project return kReturnStrings[idx]; 118edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project else 119edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project return "unknown"; 120edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 121edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 122edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Projectstatic const void* printBinderTransactionData(TextOutput& out, const void* data) 123edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project{ 124edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project const binder_transaction_data* btd = 125edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project (const binder_transaction_data*)data; 126aefc9cda45adb00ec1cb2c8fbd03c50fd48499fbAndy McFadden if (btd->target.handle < 1024) { 127aefc9cda45adb00ec1cb2c8fbd03c50fd48499fbAndy McFadden /* want to print descriptors in decimal; guess based on value */ 128aefc9cda45adb00ec1cb2c8fbd03c50fd48499fbAndy McFadden out << "target.desc=" << btd->target.handle; 129aefc9cda45adb00ec1cb2c8fbd03c50fd48499fbAndy McFadden } else { 130aefc9cda45adb00ec1cb2c8fbd03c50fd48499fbAndy McFadden out << "target.ptr=" << btd->target.ptr; 131aefc9cda45adb00ec1cb2c8fbd03c50fd48499fbAndy McFadden } 132aefc9cda45adb00ec1cb2c8fbd03c50fd48499fbAndy McFadden out << " (cookie " << btd->cookie << ")" << endl 1338e5337de2c67c24f1e5c6144512e2a9ba9fefe12Chih-Hung Hsieh << "code=" << TypeCode(btd->code) << ", flags=" << (void*)(long)btd->flags << endl 134edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project << "data=" << btd->data.ptr.buffer << " (" << (void*)btd->data_size 135edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project << " bytes)" << endl 136edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project << "offsets=" << btd->data.ptr.offsets << " (" << (void*)btd->offsets_size 137aefc9cda45adb00ec1cb2c8fbd03c50fd48499fbAndy McFadden << " bytes)"; 138edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project return btd+1; 139edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 140edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 141edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Projectstatic const void* printReturnCommand(TextOutput& out, const void* _cmd) 142edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project{ 143aefc9cda45adb00ec1cb2c8fbd03c50fd48499fbAndy McFadden static const size_t N = sizeof(kReturnStrings)/sizeof(kReturnStrings[0]); 144edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project const int32_t* cmd = (const int32_t*)_cmd; 14574debb0b8fc47d443aaf7fe79f7b67f53f735f7fBernhard Rosenkränzer uint32_t code = (uint32_t)*cmd++; 146aefc9cda45adb00ec1cb2c8fbd03c50fd48499fbAndy McFadden size_t cmdIndex = code & 0xff; 14774debb0b8fc47d443aaf7fe79f7b67f53f735f7fBernhard Rosenkränzer if (code == BR_ERROR) { 1488e5337de2c67c24f1e5c6144512e2a9ba9fefe12Chih-Hung Hsieh out << "BR_ERROR: " << (void*)(long)(*cmd++) << endl; 149edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project return cmd; 150aefc9cda45adb00ec1cb2c8fbd03c50fd48499fbAndy McFadden } else if (cmdIndex >= N) { 151edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project out << "Unknown reply: " << code << endl; 152edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project return cmd; 153edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } 154aefc9cda45adb00ec1cb2c8fbd03c50fd48499fbAndy McFadden out << kReturnStrings[cmdIndex]; 155edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 156edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project switch (code) { 157edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project case BR_TRANSACTION: 158edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project case BR_REPLY: { 159edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project out << ": " << indent; 160edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project cmd = (const int32_t *)printBinderTransactionData(out, cmd); 161edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project out << dedent; 162edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } break; 163edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 164edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project case BR_ACQUIRE_RESULT: { 165edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project const int32_t res = *cmd++; 166edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project out << ": " << res << (res ? " (SUCCESS)" : " (FAILURE)"); 167edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } break; 168edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 169edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project case BR_INCREFS: 170edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project case BR_ACQUIRE: 171edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project case BR_RELEASE: 172edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project case BR_DECREFS: { 173edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project const int32_t b = *cmd++; 174edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project const int32_t c = *cmd++; 1758e5337de2c67c24f1e5c6144512e2a9ba9fefe12Chih-Hung Hsieh out << ": target=" << (void*)(long)b << " (cookie " << (void*)(long)c << ")"; 176edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } break; 177edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 178edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project case BR_ATTEMPT_ACQUIRE: { 179edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project const int32_t p = *cmd++; 180edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project const int32_t b = *cmd++; 181edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project const int32_t c = *cmd++; 1828e5337de2c67c24f1e5c6144512e2a9ba9fefe12Chih-Hung Hsieh out << ": target=" << (void*)(long)b << " (cookie " << (void*)(long)c 183edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project << "), pri=" << p; 184edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } break; 185edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 186edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project case BR_DEAD_BINDER: 187edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project case BR_CLEAR_DEATH_NOTIFICATION_DONE: { 188edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project const int32_t c = *cmd++; 1898e5337de2c67c24f1e5c6144512e2a9ba9fefe12Chih-Hung Hsieh out << ": death cookie " << (void*)(long)c; 190edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } break; 191aefc9cda45adb00ec1cb2c8fbd03c50fd48499fbAndy McFadden 192aefc9cda45adb00ec1cb2c8fbd03c50fd48499fbAndy McFadden default: 193aefc9cda45adb00ec1cb2c8fbd03c50fd48499fbAndy McFadden // no details to show for: BR_OK, BR_DEAD_REPLY, 194aefc9cda45adb00ec1cb2c8fbd03c50fd48499fbAndy McFadden // BR_TRANSACTION_COMPLETE, BR_FINISHED 195aefc9cda45adb00ec1cb2c8fbd03c50fd48499fbAndy McFadden break; 196edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } 197edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 198edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project out << endl; 199edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project return cmd; 200edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 201edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 202edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Projectstatic const void* printCommand(TextOutput& out, const void* _cmd) 203edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project{ 204aefc9cda45adb00ec1cb2c8fbd03c50fd48499fbAndy McFadden static const size_t N = sizeof(kCommandStrings)/sizeof(kCommandStrings[0]); 205edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project const int32_t* cmd = (const int32_t*)_cmd; 20674debb0b8fc47d443aaf7fe79f7b67f53f735f7fBernhard Rosenkränzer uint32_t code = (uint32_t)*cmd++; 207aefc9cda45adb00ec1cb2c8fbd03c50fd48499fbAndy McFadden size_t cmdIndex = code & 0xff; 208aefc9cda45adb00ec1cb2c8fbd03c50fd48499fbAndy McFadden 209aefc9cda45adb00ec1cb2c8fbd03c50fd48499fbAndy McFadden if (cmdIndex >= N) { 210edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project out << "Unknown command: " << code << endl; 211edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project return cmd; 212edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } 213aefc9cda45adb00ec1cb2c8fbd03c50fd48499fbAndy McFadden out << kCommandStrings[cmdIndex]; 214aefc9cda45adb00ec1cb2c8fbd03c50fd48499fbAndy McFadden 215edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project switch (code) { 216edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project case BC_TRANSACTION: 217edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project case BC_REPLY: { 218edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project out << ": " << indent; 219edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project cmd = (const int32_t *)printBinderTransactionData(out, cmd); 220edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project out << dedent; 221edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } break; 222edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 223edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project case BC_ACQUIRE_RESULT: { 224edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project const int32_t res = *cmd++; 225edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project out << ": " << res << (res ? " (SUCCESS)" : " (FAILURE)"); 226edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } break; 227edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 228edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project case BC_FREE_BUFFER: { 229edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project const int32_t buf = *cmd++; 2308e5337de2c67c24f1e5c6144512e2a9ba9fefe12Chih-Hung Hsieh out << ": buffer=" << (void*)(long)buf; 231edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } break; 232edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 233edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project case BC_INCREFS: 234edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project case BC_ACQUIRE: 235edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project case BC_RELEASE: 236edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project case BC_DECREFS: { 237edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project const int32_t d = *cmd++; 238aefc9cda45adb00ec1cb2c8fbd03c50fd48499fbAndy McFadden out << ": desc=" << d; 239edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } break; 240edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 241edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project case BC_INCREFS_DONE: 242edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project case BC_ACQUIRE_DONE: { 243edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project const int32_t b = *cmd++; 244edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project const int32_t c = *cmd++; 2458e5337de2c67c24f1e5c6144512e2a9ba9fefe12Chih-Hung Hsieh out << ": target=" << (void*)(long)b << " (cookie " << (void*)(long)c << ")"; 246edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } break; 247edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 248edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project case BC_ATTEMPT_ACQUIRE: { 249edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project const int32_t p = *cmd++; 250edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project const int32_t d = *cmd++; 251aefc9cda45adb00ec1cb2c8fbd03c50fd48499fbAndy McFadden out << ": desc=" << d << ", pri=" << p; 252edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } break; 253edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 254edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project case BC_REQUEST_DEATH_NOTIFICATION: 255edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project case BC_CLEAR_DEATH_NOTIFICATION: { 256edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project const int32_t h = *cmd++; 257edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project const int32_t c = *cmd++; 2588e5337de2c67c24f1e5c6144512e2a9ba9fefe12Chih-Hung Hsieh out << ": handle=" << h << " (death cookie " << (void*)(long)c << ")"; 259edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } break; 260edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 261edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project case BC_DEAD_BINDER_DONE: { 262edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project const int32_t c = *cmd++; 2638e5337de2c67c24f1e5c6144512e2a9ba9fefe12Chih-Hung Hsieh out << ": death cookie " << (void*)(long)c; 264edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } break; 265aefc9cda45adb00ec1cb2c8fbd03c50fd48499fbAndy McFadden 266aefc9cda45adb00ec1cb2c8fbd03c50fd48499fbAndy McFadden default: 267aefc9cda45adb00ec1cb2c8fbd03c50fd48499fbAndy McFadden // no details to show for: BC_REGISTER_LOOPER, BC_ENTER_LOOPER, 268aefc9cda45adb00ec1cb2c8fbd03c50fd48499fbAndy McFadden // BC_EXIT_LOOPER 269aefc9cda45adb00ec1cb2c8fbd03c50fd48499fbAndy McFadden break; 270edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } 271edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 272edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project out << endl; 273edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project return cmd; 274edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 275edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 276edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Projectstatic pthread_mutex_t gTLSMutex = PTHREAD_MUTEX_INITIALIZER; 277edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Projectstatic bool gHaveTLS = false; 278edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Projectstatic pthread_key_t gTLS = 0; 279edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Projectstatic bool gShutdown = false; 2808c6cedc9bc9a4b69616a79a95449f6f6b08c7bf1Dianne Hackbornstatic bool gDisableBackgroundScheduling = false; 281edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 282edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source ProjectIPCThreadState* IPCThreadState::self() 283edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project{ 284edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project if (gHaveTLS) { 285edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Projectrestart: 286edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project const pthread_key_t k = gTLS; 287edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project IPCThreadState* st = (IPCThreadState*)pthread_getspecific(k); 288edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project if (st) return st; 289edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project return new IPCThreadState; 290edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } 291edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 292f31a3eb3290c4154bd04113c8bb859a499f288b6Andreas Gampe if (gShutdown) { 293f31a3eb3290c4154bd04113c8bb859a499f288b6Andreas Gampe ALOGW("Calling IPCThreadState::self() during shutdown is dangerous, expect a crash.\n"); 294f31a3eb3290c4154bd04113c8bb859a499f288b6Andreas Gampe return NULL; 295f31a3eb3290c4154bd04113c8bb859a499f288b6Andreas Gampe } 296edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 297edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project pthread_mutex_lock(&gTLSMutex); 298edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project if (!gHaveTLS) { 299f31a3eb3290c4154bd04113c8bb859a499f288b6Andreas Gampe int key_create_value = pthread_key_create(&gTLS, threadDestructor); 300f31a3eb3290c4154bd04113c8bb859a499f288b6Andreas Gampe if (key_create_value != 0) { 301edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project pthread_mutex_unlock(&gTLSMutex); 302f31a3eb3290c4154bd04113c8bb859a499f288b6Andreas Gampe ALOGW("IPCThreadState::self() unable to create TLS key, expect a crash: %s\n", 303f31a3eb3290c4154bd04113c8bb859a499f288b6Andreas Gampe strerror(key_create_value)); 304edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project return NULL; 305edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } 306edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project gHaveTLS = true; 307edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } 308edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project pthread_mutex_unlock(&gTLSMutex); 309edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project goto restart; 310edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 311edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 3121b6084354710ca52c04ea361d751d19174802d57Brad FitzpatrickIPCThreadState* IPCThreadState::selfOrNull() 3131b6084354710ca52c04ea361d751d19174802d57Brad Fitzpatrick{ 3141b6084354710ca52c04ea361d751d19174802d57Brad Fitzpatrick if (gHaveTLS) { 3151b6084354710ca52c04ea361d751d19174802d57Brad Fitzpatrick const pthread_key_t k = gTLS; 3161b6084354710ca52c04ea361d751d19174802d57Brad Fitzpatrick IPCThreadState* st = (IPCThreadState*)pthread_getspecific(k); 3171b6084354710ca52c04ea361d751d19174802d57Brad Fitzpatrick return st; 3181b6084354710ca52c04ea361d751d19174802d57Brad Fitzpatrick } 3191b6084354710ca52c04ea361d751d19174802d57Brad Fitzpatrick return NULL; 3201b6084354710ca52c04ea361d751d19174802d57Brad Fitzpatrick} 3211b6084354710ca52c04ea361d751d19174802d57Brad Fitzpatrick 322edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Projectvoid IPCThreadState::shutdown() 323edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project{ 324edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project gShutdown = true; 325edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 326edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project if (gHaveTLS) { 327edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project // XXX Need to wait for all thread pool threads to exit! 328edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project IPCThreadState* st = (IPCThreadState*)pthread_getspecific(gTLS); 329edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project if (st) { 330edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project delete st; 331edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project pthread_setspecific(gTLS, NULL); 332edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } 333edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project gHaveTLS = false; 334edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } 335edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 336edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 3378c6cedc9bc9a4b69616a79a95449f6f6b08c7bf1Dianne Hackbornvoid IPCThreadState::disableBackgroundScheduling(bool disable) 3388c6cedc9bc9a4b69616a79a95449f6f6b08c7bf1Dianne Hackborn{ 3398c6cedc9bc9a4b69616a79a95449f6f6b08c7bf1Dianne Hackborn gDisableBackgroundScheduling = disable; 3408c6cedc9bc9a4b69616a79a95449f6f6b08c7bf1Dianne Hackborn} 3418c6cedc9bc9a4b69616a79a95449f6f6b08c7bf1Dianne Hackborn 342edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Projectsp<ProcessState> IPCThreadState::process() 343edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project{ 344edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project return mProcess; 345edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 346edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 347edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Projectstatus_t IPCThreadState::clearLastError() 348edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project{ 349edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project const status_t err = mLastError; 350edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project mLastError = NO_ERROR; 351edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project return err; 352edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 353edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 3549c634fd2d13722106d475b000b05babcce1f65beDan Stozapid_t IPCThreadState::getCallingPid() const 355edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project{ 356edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project return mCallingPid; 357edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 358edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 3599c634fd2d13722106d475b000b05babcce1f65beDan Stozauid_t IPCThreadState::getCallingUid() const 360edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project{ 361edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project return mCallingUid; 362edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 363edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 364edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Projectint64_t IPCThreadState::clearCallingIdentity() 365edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project{ 366edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project int64_t token = ((int64_t)mCallingUid<<32) | mCallingPid; 367edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project clearCaller(); 368edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project return token; 369edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 370edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 371702ea9d42f52fc145090c0f0bfbe64993e4b8b33Brad Fitzpatrickvoid IPCThreadState::setStrictModePolicy(int32_t policy) 372702ea9d42f52fc145090c0f0bfbe64993e4b8b33Brad Fitzpatrick{ 373702ea9d42f52fc145090c0f0bfbe64993e4b8b33Brad Fitzpatrick mStrictModePolicy = policy; 374702ea9d42f52fc145090c0f0bfbe64993e4b8b33Brad Fitzpatrick} 375702ea9d42f52fc145090c0f0bfbe64993e4b8b33Brad Fitzpatrick 376a877cd85b5a026384542e3271fc310d6a8fe24c6Brad Fitzpatrickint32_t IPCThreadState::getStrictModePolicy() const 377a877cd85b5a026384542e3271fc310d6a8fe24c6Brad Fitzpatrick{ 378702ea9d42f52fc145090c0f0bfbe64993e4b8b33Brad Fitzpatrick return mStrictModePolicy; 379702ea9d42f52fc145090c0f0bfbe64993e4b8b33Brad Fitzpatrick} 380702ea9d42f52fc145090c0f0bfbe64993e4b8b33Brad Fitzpatrick 3815273603e98d2db3bac656b7bcf5352c04c86d62fBrad Fitzpatrickvoid IPCThreadState::setLastTransactionBinderFlags(int32_t flags) 3825273603e98d2db3bac656b7bcf5352c04c86d62fBrad Fitzpatrick{ 3835273603e98d2db3bac656b7bcf5352c04c86d62fBrad Fitzpatrick mLastTransactionBinderFlags = flags; 3845273603e98d2db3bac656b7bcf5352c04c86d62fBrad Fitzpatrick} 3855273603e98d2db3bac656b7bcf5352c04c86d62fBrad Fitzpatrick 3865273603e98d2db3bac656b7bcf5352c04c86d62fBrad Fitzpatrickint32_t IPCThreadState::getLastTransactionBinderFlags() const 3875273603e98d2db3bac656b7bcf5352c04c86d62fBrad Fitzpatrick{ 3885273603e98d2db3bac656b7bcf5352c04c86d62fBrad Fitzpatrick return mLastTransactionBinderFlags; 3895273603e98d2db3bac656b7bcf5352c04c86d62fBrad Fitzpatrick} 3905273603e98d2db3bac656b7bcf5352c04c86d62fBrad Fitzpatrick 391edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Projectvoid IPCThreadState::restoreCallingIdentity(int64_t token) 392edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project{ 393edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project mCallingUid = (int)(token>>32); 394edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project mCallingPid = (int)token; 395edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 396edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 397edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Projectvoid IPCThreadState::clearCaller() 398edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project{ 399d43b194b69fca6c81023effc921fcc7576bad496Marco Nelissen mCallingPid = getpid(); 400d43b194b69fca6c81023effc921fcc7576bad496Marco Nelissen mCallingUid = getuid(); 401edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 402edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 403edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Projectvoid IPCThreadState::flushCommands() 404edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project{ 405edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project if (mProcess->mDriverFD <= 0) 406edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project return; 407edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project talkWithDriver(false); 408edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 409edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 410376b822728c582a9deb26ce339deb5204ae4d22eWale Ogunwalevoid IPCThreadState::blockUntilThreadAvailable() 411376b822728c582a9deb26ce339deb5204ae4d22eWale Ogunwale{ 412376b822728c582a9deb26ce339deb5204ae4d22eWale Ogunwale pthread_mutex_lock(&mProcess->mThreadCountLock); 413376b822728c582a9deb26ce339deb5204ae4d22eWale Ogunwale while (mProcess->mExecutingThreadsCount >= mProcess->mMaxThreads) { 414a3206e690bcfe5c982a0d7fff7c845b83a3ed91fWale Ogunwale ALOGW("Waiting for thread to be free. mExecutingThreadsCount=%lu mMaxThreads=%lu\n", 415a3206e690bcfe5c982a0d7fff7c845b83a3ed91fWale Ogunwale static_cast<unsigned long>(mProcess->mExecutingThreadsCount), 416a3206e690bcfe5c982a0d7fff7c845b83a3ed91fWale Ogunwale static_cast<unsigned long>(mProcess->mMaxThreads)); 417376b822728c582a9deb26ce339deb5204ae4d22eWale Ogunwale pthread_cond_wait(&mProcess->mThreadCountDecrement, &mProcess->mThreadCountLock); 418376b822728c582a9deb26ce339deb5204ae4d22eWale Ogunwale } 419376b822728c582a9deb26ce339deb5204ae4d22eWale Ogunwale pthread_mutex_unlock(&mProcess->mThreadCountLock); 420376b822728c582a9deb26ce339deb5204ae4d22eWale Ogunwale} 421376b822728c582a9deb26ce339deb5204ae4d22eWale Ogunwale 4228d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynorstatus_t IPCThreadState::getAndExecuteCommand() 4238d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor{ 4248d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor status_t result; 4258d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor int32_t cmd; 4268d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor 4278d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor result = talkWithDriver(); 4288d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor if (result >= NO_ERROR) { 4298d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor size_t IN = mIn.dataAvail(); 4308d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor if (IN < sizeof(int32_t)) return result; 4318d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor cmd = mIn.readInt32(); 4328d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor IF_LOG_COMMANDS() { 4338d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor alog << "Processing top-level Command: " 4348d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor << getReturnString(cmd) << endl; 4358d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor } 4368d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor 437376b822728c582a9deb26ce339deb5204ae4d22eWale Ogunwale pthread_mutex_lock(&mProcess->mThreadCountLock); 438376b822728c582a9deb26ce339deb5204ae4d22eWale Ogunwale mProcess->mExecutingThreadsCount++; 43996e8322f4d11af8538d6d0db5f1a11338b8aee9dColin Cross if (mProcess->mExecutingThreadsCount >= mProcess->mMaxThreads && 44096e8322f4d11af8538d6d0db5f1a11338b8aee9dColin Cross mProcess->mStarvationStartTimeMs == 0) { 44196e8322f4d11af8538d6d0db5f1a11338b8aee9dColin Cross mProcess->mStarvationStartTimeMs = uptimeMillis(); 44296e8322f4d11af8538d6d0db5f1a11338b8aee9dColin Cross } 443376b822728c582a9deb26ce339deb5204ae4d22eWale Ogunwale pthread_mutex_unlock(&mProcess->mThreadCountLock); 444376b822728c582a9deb26ce339deb5204ae4d22eWale Ogunwale 4458d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor result = executeCommand(cmd); 4468d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor 447376b822728c582a9deb26ce339deb5204ae4d22eWale Ogunwale pthread_mutex_lock(&mProcess->mThreadCountLock); 448376b822728c582a9deb26ce339deb5204ae4d22eWale Ogunwale mProcess->mExecutingThreadsCount--; 44996e8322f4d11af8538d6d0db5f1a11338b8aee9dColin Cross if (mProcess->mExecutingThreadsCount < mProcess->mMaxThreads && 45096e8322f4d11af8538d6d0db5f1a11338b8aee9dColin Cross mProcess->mStarvationStartTimeMs != 0) { 45196e8322f4d11af8538d6d0db5f1a11338b8aee9dColin Cross int64_t starvationTimeMs = uptimeMillis() - mProcess->mStarvationStartTimeMs; 45296e8322f4d11af8538d6d0db5f1a11338b8aee9dColin Cross if (starvationTimeMs > 100) { 45396e8322f4d11af8538d6d0db5f1a11338b8aee9dColin Cross ALOGE("binder thread pool (%zu threads) starved for %" PRId64 " ms", 45496e8322f4d11af8538d6d0db5f1a11338b8aee9dColin Cross mProcess->mMaxThreads, starvationTimeMs); 45596e8322f4d11af8538d6d0db5f1a11338b8aee9dColin Cross } 45696e8322f4d11af8538d6d0db5f1a11338b8aee9dColin Cross mProcess->mStarvationStartTimeMs = 0; 45796e8322f4d11af8538d6d0db5f1a11338b8aee9dColin Cross } 458376b822728c582a9deb26ce339deb5204ae4d22eWale Ogunwale pthread_cond_broadcast(&mProcess->mThreadCountDecrement); 459376b822728c582a9deb26ce339deb5204ae4d22eWale Ogunwale pthread_mutex_unlock(&mProcess->mThreadCountLock); 460376b822728c582a9deb26ce339deb5204ae4d22eWale Ogunwale 4618d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor // After executing the command, ensure that the thread is returned to the 4628d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor // foreground cgroup before rejoining the pool. The driver takes care of 4638d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor // restoring the priority, but doesn't do anything with cgroups so we 4648d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor // need to take care of that here in userspace. Note that we do make 4658d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor // sure to go in the foreground after executing a transaction, but 4668d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor // there are other callbacks into user code that could have changed 4678d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor // our group so we want to make absolutely sure it is put back. 4688d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor set_sched_policy(mMyThreadId, SP_FOREGROUND); 4698d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor } 4708d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor 4718d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor return result; 4728d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor} 4738d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor 4748d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor// When we've cleared the incoming command queue, process any pending derefs 4758d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynorvoid IPCThreadState::processPendingDerefs() 4768d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor{ 4778d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor if (mIn.dataPosition() >= mIn.dataSize()) { 4788d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor size_t numPending = mPendingWeakDerefs.size(); 4798d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor if (numPending > 0) { 4808d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor for (size_t i = 0; i < numPending; i++) { 4818d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor RefBase::weakref_type* refs = mPendingWeakDerefs[i]; 4828d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor refs->decWeak(mProcess.get()); 4838d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor } 4848d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor mPendingWeakDerefs.clear(); 4858d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor } 4868d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor 4878d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor numPending = mPendingStrongDerefs.size(); 4888d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor if (numPending > 0) { 4898d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor for (size_t i = 0; i < numPending; i++) { 4908d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor BBinder* obj = mPendingStrongDerefs[i]; 4918d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor obj->decStrong(mProcess.get()); 4928d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor } 4938d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor mPendingStrongDerefs.clear(); 4948d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor } 4958d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor } 4968d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor} 4978d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor 498edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Projectvoid IPCThreadState::joinThreadPool(bool isMain) 499edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project{ 500edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project LOG_THREADPOOL("**** THREAD %p (PID %d) IS JOINING THE THREAD POOL\n", (void*)pthread_self(), getpid()); 501edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 502edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project mOut.writeInt32(isMain ? BC_ENTER_LOOPER : BC_REGISTER_LOOPER); 503edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 5048c6cedc9bc9a4b69616a79a95449f6f6b08c7bf1Dianne Hackborn // This thread may have been spawned by a thread that was in the background 505a26e1cfbbcb7dc5e0b1cd79a815362d6a048ef26Glenn Kasten // scheduling group, so first we will make sure it is in the foreground 5068c6cedc9bc9a4b69616a79a95449f6f6b08c7bf1Dianne Hackborn // one to avoid performing an initial transaction in the background. 507a26e1cfbbcb7dc5e0b1cd79a815362d6a048ef26Glenn Kasten set_sched_policy(mMyThreadId, SP_FOREGROUND); 5088c6cedc9bc9a4b69616a79a95449f6f6b08c7bf1Dianne Hackborn 509edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project status_t result; 510edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project do { 5118d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor processPendingDerefs(); 512edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project // now get the next command to be processed, waiting if necessary 5138d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor result = getAndExecuteCommand(); 514dcd3958c5086f757dc09472700ae7384efea7fc8Jason Parks 5158d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor if (result < NO_ERROR && result != TIMED_OUT && result != -ECONNREFUSED && result != -EBADF) { 5168d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor ALOGE("getAndExecuteCommand(fd=%d) returned unexpected error %d, aborting", 517ef07386e2fca73680214ececc3c9c0ecbb0f6d88Jeff Tinker mProcess->mDriverFD, result); 518ef07386e2fca73680214ececc3c9c0ecbb0f6d88Jeff Tinker abort(); 519edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } 520edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 521edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project // Let this thread exit the thread pool if it is no longer 522edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project // needed and it is not the main process thread. 523edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project if(result == TIMED_OUT && !isMain) { 524edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project break; 525edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } 526edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } while (result != -ECONNREFUSED && result != -EBADF); 527edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 528edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project LOG_THREADPOOL("**** THREAD %p (PID %d) IS LEAVING THE THREAD POOL err=%p\n", 529edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project (void*)pthread_self(), getpid(), (void*)result); 530edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 531edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project mOut.writeInt32(BC_EXIT_LOOPER); 532edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project talkWithDriver(false); 533edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 534edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 5358d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynorint IPCThreadState::setupPolling(int* fd) 5368d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor{ 5378d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor if (mProcess->mDriverFD <= 0) { 5388d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor return -EBADF; 5398d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor } 5408d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor 5418d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor mOut.writeInt32(BC_ENTER_LOOPER); 5428d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor *fd = mProcess->mDriverFD; 5438d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor return 0; 5448d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor} 5458d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor 5468d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynorstatus_t IPCThreadState::handlePolledCommands() 5478d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor{ 5488d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor status_t result; 5498d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor 5508d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor do { 5518d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor result = getAndExecuteCommand(); 5528d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor } while (mIn.dataPosition() < mIn.dataSize()); 5538d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor 5548d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor processPendingDerefs(); 5558d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor flushCommands(); 5568d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor return result; 5578d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor} 5588d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor 5596f4f3ab36c5ed1df84eb3a9f7475f0ac42952f58Colin Crossvoid IPCThreadState::stopProcess(bool /*immediate*/) 560edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project{ 561a19954ab377b46dbcb9cbe8a6ab6d458f2e32bcaSteve Block //ALOGI("**** STOPPING PROCESS"); 562edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project flushCommands(); 563edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project int fd = mProcess->mDriverFD; 564edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project mProcess->mDriverFD = -1; 565edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project close(fd); 566edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project //kill(getpid(), SIGKILL); 567edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 568edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 569edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Projectstatus_t IPCThreadState::transact(int32_t handle, 570edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project uint32_t code, const Parcel& data, 571edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project Parcel* reply, uint32_t flags) 572edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project{ 573edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project status_t err = data.errorCheck(); 574edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 575edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project flags |= TF_ACCEPT_FDS; 576edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 577edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project IF_LOG_TRANSACTIONS() { 578edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project TextOutput::Bundle _b(alog); 579edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project alog << "BC_TRANSACTION thr " << (void*)pthread_self() << " / hand " 580edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project << handle << " / code " << TypeCode(code) << ": " 581edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project << indent << data << dedent << endl; 582edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } 583edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 584edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project if (err == NO_ERROR) { 585edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project LOG_ONEWAY(">>>> SEND from pid %d uid %d %s", getpid(), getuid(), 586edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project (flags & TF_ONE_WAY) == 0 ? "READ REPLY" : "ONE WAY"); 587edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project err = writeTransactionData(BC_TRANSACTION, flags, handle, code, data, NULL); 588edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } 589edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 590edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project if (err != NO_ERROR) { 591edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project if (reply) reply->setError(err); 592edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project return (mLastError = err); 593edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } 594edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 595edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project if ((flags & TF_ONE_WAY) == 0) { 59667f78c4fe8f89b52199f509f36e42df0b1cdfe2dDianne Hackborn #if 0 59767f78c4fe8f89b52199f509f36e42df0b1cdfe2dDianne Hackborn if (code == 4) { // relayout 598a19954ab377b46dbcb9cbe8a6ab6d458f2e32bcaSteve Block ALOGI(">>>>>> CALLING transaction 4"); 59967f78c4fe8f89b52199f509f36e42df0b1cdfe2dDianne Hackborn } else { 600a19954ab377b46dbcb9cbe8a6ab6d458f2e32bcaSteve Block ALOGI(">>>>>> CALLING transaction %d", code); 60167f78c4fe8f89b52199f509f36e42df0b1cdfe2dDianne Hackborn } 60267f78c4fe8f89b52199f509f36e42df0b1cdfe2dDianne Hackborn #endif 603edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project if (reply) { 604edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project err = waitForResponse(reply); 605edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } else { 606edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project Parcel fakeReply; 607edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project err = waitForResponse(&fakeReply); 608edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } 60967f78c4fe8f89b52199f509f36e42df0b1cdfe2dDianne Hackborn #if 0 61067f78c4fe8f89b52199f509f36e42df0b1cdfe2dDianne Hackborn if (code == 4) { // relayout 611a19954ab377b46dbcb9cbe8a6ab6d458f2e32bcaSteve Block ALOGI("<<<<<< RETURNING transaction 4"); 61267f78c4fe8f89b52199f509f36e42df0b1cdfe2dDianne Hackborn } else { 613a19954ab377b46dbcb9cbe8a6ab6d458f2e32bcaSteve Block ALOGI("<<<<<< RETURNING transaction %d", code); 61467f78c4fe8f89b52199f509f36e42df0b1cdfe2dDianne Hackborn } 61567f78c4fe8f89b52199f509f36e42df0b1cdfe2dDianne Hackborn #endif 616edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 617edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project IF_LOG_TRANSACTIONS() { 618edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project TextOutput::Bundle _b(alog); 619edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project alog << "BR_REPLY thr " << (void*)pthread_self() << " / hand " 620edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project << handle << ": "; 621edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project if (reply) alog << indent << *reply << dedent << endl; 622edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project else alog << "(none requested)" << endl; 623edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } 624edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } else { 625edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project err = waitForResponse(NULL, NULL); 626edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } 627edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 628edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project return err; 629edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 630edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 631edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Projectvoid IPCThreadState::incStrongHandle(int32_t handle) 632edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project{ 633edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project LOG_REMOTEREFS("IPCThreadState::incStrongHandle(%d)\n", handle); 634edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project mOut.writeInt32(BC_ACQUIRE); 635edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project mOut.writeInt32(handle); 636edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 637edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 638edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Projectvoid IPCThreadState::decStrongHandle(int32_t handle) 639edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project{ 640edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project LOG_REMOTEREFS("IPCThreadState::decStrongHandle(%d)\n", handle); 641edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project mOut.writeInt32(BC_RELEASE); 642edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project mOut.writeInt32(handle); 643edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 644edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 645edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Projectvoid IPCThreadState::incWeakHandle(int32_t handle) 646edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project{ 647edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project LOG_REMOTEREFS("IPCThreadState::incWeakHandle(%d)\n", handle); 648edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project mOut.writeInt32(BC_INCREFS); 649edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project mOut.writeInt32(handle); 650edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 651edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 652edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Projectvoid IPCThreadState::decWeakHandle(int32_t handle) 653edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project{ 654edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project LOG_REMOTEREFS("IPCThreadState::decWeakHandle(%d)\n", handle); 655edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project mOut.writeInt32(BC_DECREFS); 656edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project mOut.writeInt32(handle); 657edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 658edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 659edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Projectstatus_t IPCThreadState::attemptIncStrongHandle(int32_t handle) 660edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project{ 66111cfdccfd3cfceb08732909a1489419ff0229694Arve Hjønnevåg#if HAS_BC_ATTEMPT_ACQUIRE 662aefc9cda45adb00ec1cb2c8fbd03c50fd48499fbAndy McFadden LOG_REMOTEREFS("IPCThreadState::attemptIncStrongHandle(%d)\n", handle); 663edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project mOut.writeInt32(BC_ATTEMPT_ACQUIRE); 664edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project mOut.writeInt32(0); // xxx was thread priority 665edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project mOut.writeInt32(handle); 666edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project status_t result = UNKNOWN_ERROR; 667edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 668edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project waitForResponse(NULL, &result); 669edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 670edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project#if LOG_REFCOUNTS 671edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project printf("IPCThreadState::attemptIncStrongHandle(%ld) = %s\n", 672edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project handle, result == NO_ERROR ? "SUCCESS" : "FAILURE"); 673edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project#endif 674edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 675edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project return result; 67611cfdccfd3cfceb08732909a1489419ff0229694Arve Hjønnevåg#else 67711cfdccfd3cfceb08732909a1489419ff0229694Arve Hjønnevåg (void)handle; 67811cfdccfd3cfceb08732909a1489419ff0229694Arve Hjønnevåg ALOGE("%s(%d): Not supported\n", __func__, handle); 67911cfdccfd3cfceb08732909a1489419ff0229694Arve Hjønnevåg return INVALID_OPERATION; 68011cfdccfd3cfceb08732909a1489419ff0229694Arve Hjønnevåg#endif 681edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 682edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 683edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Projectvoid IPCThreadState::expungeHandle(int32_t handle, IBinder* binder) 684edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project{ 685edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project#if LOG_REFCOUNTS 686edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project printf("IPCThreadState::expungeHandle(%ld)\n", handle); 687edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project#endif 688edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project self()->mProcess->expungeHandle(handle, binder); 689edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 690edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 691edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Projectstatus_t IPCThreadState::requestDeathNotification(int32_t handle, BpBinder* proxy) 692edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project{ 693edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project mOut.writeInt32(BC_REQUEST_DEATH_NOTIFICATION); 694edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project mOut.writeInt32((int32_t)handle); 695f683e0163a84d93448b9388126902242367cd961Serban Constantinescu mOut.writePointer((uintptr_t)proxy); 696edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project return NO_ERROR; 697edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 698edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 699edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Projectstatus_t IPCThreadState::clearDeathNotification(int32_t handle, BpBinder* proxy) 700edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project{ 701edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project mOut.writeInt32(BC_CLEAR_DEATH_NOTIFICATION); 702edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project mOut.writeInt32((int32_t)handle); 703f683e0163a84d93448b9388126902242367cd961Serban Constantinescu mOut.writePointer((uintptr_t)proxy); 704edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project return NO_ERROR; 705edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 706edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 707edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source ProjectIPCThreadState::IPCThreadState() 7085273603e98d2db3bac656b7bcf5352c04c86d62fBrad Fitzpatrick : mProcess(ProcessState::self()), 709fa6ad07c4ed44244f5220a422819919bc37528baElliott Hughes mMyThreadId(gettid()), 7105273603e98d2db3bac656b7bcf5352c04c86d62fBrad Fitzpatrick mStrictModePolicy(0), 7115273603e98d2db3bac656b7bcf5352c04c86d62fBrad Fitzpatrick mLastTransactionBinderFlags(0) 712edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project{ 713edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project pthread_setspecific(gTLS, this); 7148c6cedc9bc9a4b69616a79a95449f6f6b08c7bf1Dianne Hackborn clearCaller(); 715edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project mIn.setDataCapacity(256); 716edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project mOut.setDataCapacity(256); 717edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 718edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 719edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source ProjectIPCThreadState::~IPCThreadState() 720edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project{ 721edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 722edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 723edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Projectstatus_t IPCThreadState::sendReply(const Parcel& reply, uint32_t flags) 724edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project{ 725edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project status_t err; 726edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project status_t statusBuffer; 727edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project err = writeTransactionData(BC_REPLY, flags, -1, 0, reply, &statusBuffer); 728edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project if (err < NO_ERROR) return err; 729edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 730edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project return waitForResponse(NULL, NULL); 731edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 732edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 733edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Projectstatus_t IPCThreadState::waitForResponse(Parcel *reply, status_t *acquireResult) 734edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project{ 73574debb0b8fc47d443aaf7fe79f7b67f53f735f7fBernhard Rosenkränzer uint32_t cmd; 736edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project int32_t err; 737edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 738edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project while (1) { 739edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project if ((err=talkWithDriver()) < NO_ERROR) break; 740edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project err = mIn.errorCheck(); 741edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project if (err < NO_ERROR) break; 742edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project if (mIn.dataAvail() == 0) continue; 743edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 74474debb0b8fc47d443aaf7fe79f7b67f53f735f7fBernhard Rosenkränzer cmd = (uint32_t)mIn.readInt32(); 745edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 746edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project IF_LOG_COMMANDS() { 747edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project alog << "Processing waitForResponse Command: " 748edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project << getReturnString(cmd) << endl; 749edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } 750edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 751edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project switch (cmd) { 752edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project case BR_TRANSACTION_COMPLETE: 753edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project if (!reply && !acquireResult) goto finish; 754edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project break; 755edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 756edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project case BR_DEAD_REPLY: 757edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project err = DEAD_OBJECT; 758edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project goto finish; 759edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 760edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project case BR_FAILED_REPLY: 761edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project err = FAILED_TRANSACTION; 762edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project goto finish; 763edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 764edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project case BR_ACQUIRE_RESULT: 765edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project { 7666726347e8950d34ae162fb8d6a3680a871d359e2Steve Block ALOG_ASSERT(acquireResult != NULL, "Unexpected brACQUIRE_RESULT"); 767edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project const int32_t result = mIn.readInt32(); 768edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project if (!acquireResult) continue; 769edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project *acquireResult = result ? NO_ERROR : INVALID_OPERATION; 770edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } 771edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project goto finish; 772edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 773edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project case BR_REPLY: 774edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project { 775edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project binder_transaction_data tr; 776edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project err = mIn.read(&tr, sizeof(tr)); 7776726347e8950d34ae162fb8d6a3680a871d359e2Steve Block ALOG_ASSERT(err == NO_ERROR, "Not enough command data for brREPLY"); 778edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project if (err != NO_ERROR) goto finish; 779edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 780edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project if (reply) { 781edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project if ((tr.flags & TF_STATUS_CODE) == 0) { 782edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project reply->ipcSetDataReference( 783edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project reinterpret_cast<const uint8_t*>(tr.data.ptr.buffer), 784edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project tr.data_size, 78584e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg reinterpret_cast<const binder_size_t*>(tr.data.ptr.offsets), 78684e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg tr.offsets_size/sizeof(binder_size_t), 787edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project freeBuffer, this); 788edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } else { 78984e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg err = *reinterpret_cast<const status_t*>(tr.data.ptr.buffer); 790edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project freeBuffer(NULL, 791edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project reinterpret_cast<const uint8_t*>(tr.data.ptr.buffer), 792edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project tr.data_size, 79384e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg reinterpret_cast<const binder_size_t*>(tr.data.ptr.offsets), 79484e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg tr.offsets_size/sizeof(binder_size_t), this); 795edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } 796edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } else { 797edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project freeBuffer(NULL, 798edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project reinterpret_cast<const uint8_t*>(tr.data.ptr.buffer), 799edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project tr.data_size, 80084e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg reinterpret_cast<const binder_size_t*>(tr.data.ptr.offsets), 80184e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg tr.offsets_size/sizeof(binder_size_t), this); 802edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project continue; 803edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } 804edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } 805edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project goto finish; 806edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 807edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project default: 808edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project err = executeCommand(cmd); 809edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project if (err != NO_ERROR) goto finish; 810edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project break; 811edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } 812edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } 813edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 814edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Projectfinish: 815edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project if (err != NO_ERROR) { 816edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project if (acquireResult) *acquireResult = err; 817edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project if (reply) reply->setError(err); 818edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project mLastError = err; 819edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } 820edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 821edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project return err; 822edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 823edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 824edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Projectstatus_t IPCThreadState::talkWithDriver(bool doReceive) 825edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project{ 826db1597a98958b78dc0d8eced19ae1406382b70d6Johannes Carlsson if (mProcess->mDriverFD <= 0) { 827db1597a98958b78dc0d8eced19ae1406382b70d6Johannes Carlsson return -EBADF; 828db1597a98958b78dc0d8eced19ae1406382b70d6Johannes Carlsson } 829edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 830edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project binder_write_read bwr; 831edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 832edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project // Is the read buffer empty? 833edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project const bool needRead = mIn.dataPosition() >= mIn.dataSize(); 834edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 835edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project // We don't want to write anything if we are still reading 836edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project // from data left in the input buffer and the caller 837edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project // has requested to read the next data. 838edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project const size_t outAvail = (!doReceive || needRead) ? mOut.dataSize() : 0; 839edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 840edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project bwr.write_size = outAvail; 84184e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg bwr.write_buffer = (uintptr_t)mOut.data(); 842edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 843edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project // This is what we'll read. 844edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project if (doReceive && needRead) { 845edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project bwr.read_size = mIn.dataCapacity(); 84684e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg bwr.read_buffer = (uintptr_t)mIn.data(); 847edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } else { 848edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project bwr.read_size = 0; 849d640f89205e17d9f19b11c2954862f0945a40e7bBen Cheng bwr.read_buffer = 0; 850edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } 851aefc9cda45adb00ec1cb2c8fbd03c50fd48499fbAndy McFadden 852edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project IF_LOG_COMMANDS() { 853edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project TextOutput::Bundle _b(alog); 854edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project if (outAvail != 0) { 855edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project alog << "Sending commands to driver: " << indent; 856edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project const void* cmds = (const void*)bwr.write_buffer; 857edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project const void* end = ((const uint8_t*)cmds)+bwr.write_size; 858edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project alog << HexDump(cmds, bwr.write_size) << endl; 859edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project while (cmds < end) cmds = printCommand(alog, cmds); 860edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project alog << dedent; 861edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } 862edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project alog << "Size of receive buffer: " << bwr.read_size 863edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project << ", needRead: " << needRead << ", doReceive: " << doReceive << endl; 864edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } 865edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 866edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project // Return immediately if there is nothing to do. 867edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project if ((bwr.write_size == 0) && (bwr.read_size == 0)) return NO_ERROR; 868aefc9cda45adb00ec1cb2c8fbd03c50fd48499fbAndy McFadden 869edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project bwr.write_consumed = 0; 870edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project bwr.read_consumed = 0; 871edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project status_t err; 872edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project do { 873edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project IF_LOG_COMMANDS() { 874edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project alog << "About to read/write, write size = " << mOut.dataSize() << endl; 875edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } 8766071da7ef84c60645572654504813d492b8b21d5Elliott Hughes#if defined(__ANDROID__) 877edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project if (ioctl(mProcess->mDriverFD, BINDER_WRITE_READ, &bwr) >= 0) 878edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project err = NO_ERROR; 879edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project else 880edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project err = -errno; 881edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project#else 882edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project err = INVALID_OPERATION; 883edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project#endif 884db1597a98958b78dc0d8eced19ae1406382b70d6Johannes Carlsson if (mProcess->mDriverFD <= 0) { 885db1597a98958b78dc0d8eced19ae1406382b70d6Johannes Carlsson err = -EBADF; 886db1597a98958b78dc0d8eced19ae1406382b70d6Johannes Carlsson } 887edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project IF_LOG_COMMANDS() { 888edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project alog << "Finished read/write, write size = " << mOut.dataSize() << endl; 889edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } 890edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } while (err == -EINTR); 891aefc9cda45adb00ec1cb2c8fbd03c50fd48499fbAndy McFadden 892edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project IF_LOG_COMMANDS() { 8936f4f3ab36c5ed1df84eb3a9f7475f0ac42952f58Colin Cross alog << "Our err: " << (void*)(intptr_t)err << ", write consumed: " 894edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project << bwr.write_consumed << " (of " << mOut.dataSize() 8958d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor << "), read consumed: " << bwr.read_consumed << endl; 896edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } 897edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 898edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project if (err >= NO_ERROR) { 899edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project if (bwr.write_consumed > 0) { 90084e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg if (bwr.write_consumed < mOut.dataSize()) 901edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project mOut.remove(0, bwr.write_consumed); 902edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project else 903edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project mOut.setDataSize(0); 904edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } 905edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project if (bwr.read_consumed > 0) { 906edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project mIn.setDataSize(bwr.read_consumed); 907edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project mIn.setDataPosition(0); 908edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } 909edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project IF_LOG_COMMANDS() { 910edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project TextOutput::Bundle _b(alog); 911edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project alog << "Remaining data size: " << mOut.dataSize() << endl; 912edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project alog << "Received commands from driver: " << indent; 913edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project const void* cmds = mIn.data(); 914edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project const void* end = mIn.data() + mIn.dataSize(); 915edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project alog << HexDump(cmds, mIn.dataSize()) << endl; 916edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project while (cmds < end) cmds = printReturnCommand(alog, cmds); 917edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project alog << dedent; 918edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } 919edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project return NO_ERROR; 920edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } 921edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 922edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project return err; 923edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 924edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 925edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Projectstatus_t IPCThreadState::writeTransactionData(int32_t cmd, uint32_t binderFlags, 926edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project int32_t handle, uint32_t code, const Parcel& data, status_t* statusBuffer) 927edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project{ 928edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project binder_transaction_data tr; 929edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 93007fd0f195db6d341cab4e54257f508d802c98832Arve Hjønnevåg tr.target.ptr = 0; /* Don't pass uninitialized stack data to a remote process */ 931edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project tr.target.handle = handle; 932edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project tr.code = code; 933edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project tr.flags = binderFlags; 934d547432f98889d57a8c37e91090664efe63da436Evgeniy Stepanov tr.cookie = 0; 935d547432f98889d57a8c37e91090664efe63da436Evgeniy Stepanov tr.sender_pid = 0; 936d547432f98889d57a8c37e91090664efe63da436Evgeniy Stepanov tr.sender_euid = 0; 937edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 938edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project const status_t err = data.errorCheck(); 939edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project if (err == NO_ERROR) { 940edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project tr.data_size = data.ipcDataSize(); 941edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project tr.data.ptr.buffer = data.ipcData(); 94284e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg tr.offsets_size = data.ipcObjectsCount()*sizeof(binder_size_t); 943edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project tr.data.ptr.offsets = data.ipcObjects(); 944edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } else if (statusBuffer) { 945edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project tr.flags |= TF_STATUS_CODE; 946edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project *statusBuffer = err; 947edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project tr.data_size = sizeof(status_t); 94887b30d0447829167b2d83f4f61f702638d937524Arve Hjønnevåg tr.data.ptr.buffer = reinterpret_cast<uintptr_t>(statusBuffer); 949edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project tr.offsets_size = 0; 95084e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg tr.data.ptr.offsets = 0; 951edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } else { 952edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project return (mLastError = err); 953edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } 954edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 955edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project mOut.writeInt32(cmd); 956edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project mOut.write(&tr, sizeof(tr)); 957edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 958edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project return NO_ERROR; 959edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 960edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 961edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Projectsp<BBinder> the_context_object; 962edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 963edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Projectvoid setTheContextObject(sp<BBinder> obj) 964edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project{ 965edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project the_context_object = obj; 966edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 967edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 968edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Projectstatus_t IPCThreadState::executeCommand(int32_t cmd) 969edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project{ 970edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project BBinder* obj; 971edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project RefBase::weakref_type* refs; 972edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project status_t result = NO_ERROR; 973edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 97474debb0b8fc47d443aaf7fe79f7b67f53f735f7fBernhard Rosenkränzer switch ((uint32_t)cmd) { 975edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project case BR_ERROR: 976edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project result = mIn.readInt32(); 977edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project break; 978edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 979edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project case BR_OK: 980edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project break; 981edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 982edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project case BR_ACQUIRE: 983f683e0163a84d93448b9388126902242367cd961Serban Constantinescu refs = (RefBase::weakref_type*)mIn.readPointer(); 984f683e0163a84d93448b9388126902242367cd961Serban Constantinescu obj = (BBinder*)mIn.readPointer(); 9856726347e8950d34ae162fb8d6a3680a871d359e2Steve Block ALOG_ASSERT(refs->refBase() == obj, 986edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project "BR_ACQUIRE: object %p does not match cookie %p (expected %p)", 987edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project refs, obj, refs->refBase()); 988edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project obj->incStrong(mProcess.get()); 989edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project IF_LOG_REMOTEREFS() { 990edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project LOG_REMOTEREFS("BR_ACQUIRE from driver on %p", obj); 991edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project obj->printRefs(); 992edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } 993edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project mOut.writeInt32(BC_ACQUIRE_DONE); 994f683e0163a84d93448b9388126902242367cd961Serban Constantinescu mOut.writePointer((uintptr_t)refs); 995f683e0163a84d93448b9388126902242367cd961Serban Constantinescu mOut.writePointer((uintptr_t)obj); 996edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project break; 997edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 998edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project case BR_RELEASE: 999f683e0163a84d93448b9388126902242367cd961Serban Constantinescu refs = (RefBase::weakref_type*)mIn.readPointer(); 1000f683e0163a84d93448b9388126902242367cd961Serban Constantinescu obj = (BBinder*)mIn.readPointer(); 10016726347e8950d34ae162fb8d6a3680a871d359e2Steve Block ALOG_ASSERT(refs->refBase() == obj, 1002edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project "BR_RELEASE: object %p does not match cookie %p (expected %p)", 1003edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project refs, obj, refs->refBase()); 1004edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project IF_LOG_REMOTEREFS() { 1005edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project LOG_REMOTEREFS("BR_RELEASE from driver on %p", obj); 1006edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project obj->printRefs(); 1007edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } 1008edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project mPendingStrongDerefs.push(obj); 1009edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project break; 1010edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 1011edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project case BR_INCREFS: 1012f683e0163a84d93448b9388126902242367cd961Serban Constantinescu refs = (RefBase::weakref_type*)mIn.readPointer(); 1013f683e0163a84d93448b9388126902242367cd961Serban Constantinescu obj = (BBinder*)mIn.readPointer(); 1014edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project refs->incWeak(mProcess.get()); 1015edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project mOut.writeInt32(BC_INCREFS_DONE); 1016f683e0163a84d93448b9388126902242367cd961Serban Constantinescu mOut.writePointer((uintptr_t)refs); 1017f683e0163a84d93448b9388126902242367cd961Serban Constantinescu mOut.writePointer((uintptr_t)obj); 1018edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project break; 1019edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 1020edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project case BR_DECREFS: 1021f683e0163a84d93448b9388126902242367cd961Serban Constantinescu refs = (RefBase::weakref_type*)mIn.readPointer(); 1022f683e0163a84d93448b9388126902242367cd961Serban Constantinescu obj = (BBinder*)mIn.readPointer(); 1023edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project // NOTE: This assertion is not valid, because the object may no 1024edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project // longer exist (thus the (BBinder*)cast above resulting in a different 1025edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project // memory address). 10266726347e8950d34ae162fb8d6a3680a871d359e2Steve Block //ALOG_ASSERT(refs->refBase() == obj, 1027edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project // "BR_DECREFS: object %p does not match cookie %p (expected %p)", 1028edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project // refs, obj, refs->refBase()); 1029edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project mPendingWeakDerefs.push(refs); 1030edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project break; 1031edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 1032edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project case BR_ATTEMPT_ACQUIRE: 1033f683e0163a84d93448b9388126902242367cd961Serban Constantinescu refs = (RefBase::weakref_type*)mIn.readPointer(); 1034f683e0163a84d93448b9388126902242367cd961Serban Constantinescu obj = (BBinder*)mIn.readPointer(); 1035edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 1036edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project { 1037edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project const bool success = refs->attemptIncStrong(mProcess.get()); 10386726347e8950d34ae162fb8d6a3680a871d359e2Steve Block ALOG_ASSERT(success && refs->refBase() == obj, 1039edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project "BR_ATTEMPT_ACQUIRE: object %p does not match cookie %p (expected %p)", 1040edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project refs, obj, refs->refBase()); 1041edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 1042edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project mOut.writeInt32(BC_ACQUIRE_RESULT); 1043edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project mOut.writeInt32((int32_t)success); 1044edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } 1045edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project break; 1046edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 1047edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project case BR_TRANSACTION: 1048edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project { 1049edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project binder_transaction_data tr; 1050edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project result = mIn.read(&tr, sizeof(tr)); 10516726347e8950d34ae162fb8d6a3680a871d359e2Steve Block ALOG_ASSERT(result == NO_ERROR, 1052edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project "Not enough command data for brTRANSACTION"); 1053edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project if (result != NO_ERROR) break; 1054edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 1055edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project Parcel buffer; 1056edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project buffer.ipcSetDataReference( 1057edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project reinterpret_cast<const uint8_t*>(tr.data.ptr.buffer), 1058edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project tr.data_size, 105984e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg reinterpret_cast<const binder_size_t*>(tr.data.ptr.offsets), 106084e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg tr.offsets_size/sizeof(binder_size_t), freeBuffer, this); 1061edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 1062edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project const pid_t origPid = mCallingPid; 1063edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project const uid_t origUid = mCallingUid; 10645ee2c9d20c0fbecf6b4a482eb8d8bfdf85d0d424Dianne Hackborn const int32_t origStrictModePolicy = mStrictModePolicy; 10655ee2c9d20c0fbecf6b4a482eb8d8bfdf85d0d424Dianne Hackborn const int32_t origTransactionBinderFlags = mLastTransactionBinderFlags; 10665ee2c9d20c0fbecf6b4a482eb8d8bfdf85d0d424Dianne Hackborn 1067edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project mCallingPid = tr.sender_pid; 1068edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project mCallingUid = tr.sender_euid; 10695ee2c9d20c0fbecf6b4a482eb8d8bfdf85d0d424Dianne Hackborn mLastTransactionBinderFlags = tr.flags; 10705ee2c9d20c0fbecf6b4a482eb8d8bfdf85d0d424Dianne Hackborn 1071440fd870b20b4720e11c9ea71d2a3284f8cf2f59Christopher Tate int curPrio = getpriority(PRIO_PROCESS, mMyThreadId); 1072440fd870b20b4720e11c9ea71d2a3284f8cf2f59Christopher Tate if (gDisableBackgroundScheduling) { 1073440fd870b20b4720e11c9ea71d2a3284f8cf2f59Christopher Tate if (curPrio > ANDROID_PRIORITY_NORMAL) { 1074440fd870b20b4720e11c9ea71d2a3284f8cf2f59Christopher Tate // We have inherited a reduced priority from the caller, but do not 1075440fd870b20b4720e11c9ea71d2a3284f8cf2f59Christopher Tate // want to run in that state in this process. The driver set our 1076440fd870b20b4720e11c9ea71d2a3284f8cf2f59Christopher Tate // priority already (though not our scheduling class), so bounce 1077440fd870b20b4720e11c9ea71d2a3284f8cf2f59Christopher Tate // it back to the default before invoking the transaction. 1078440fd870b20b4720e11c9ea71d2a3284f8cf2f59Christopher Tate setpriority(PRIO_PROCESS, mMyThreadId, ANDROID_PRIORITY_NORMAL); 1079440fd870b20b4720e11c9ea71d2a3284f8cf2f59Christopher Tate } 1080440fd870b20b4720e11c9ea71d2a3284f8cf2f59Christopher Tate } else { 1081440fd870b20b4720e11c9ea71d2a3284f8cf2f59Christopher Tate if (curPrio >= ANDROID_PRIORITY_BACKGROUND) { 1082440fd870b20b4720e11c9ea71d2a3284f8cf2f59Christopher Tate // We want to use the inherited priority from the caller. 1083440fd870b20b4720e11c9ea71d2a3284f8cf2f59Christopher Tate // Ensure this thread is in the background scheduling class, 1084440fd870b20b4720e11c9ea71d2a3284f8cf2f59Christopher Tate // since the driver won't modify scheduling classes for us. 1085440fd870b20b4720e11c9ea71d2a3284f8cf2f59Christopher Tate // The scheduling group is reset to default by the caller 1086440fd870b20b4720e11c9ea71d2a3284f8cf2f59Christopher Tate // once this method returns after the transaction is complete. 1087a26e1cfbbcb7dc5e0b1cd79a815362d6a048ef26Glenn Kasten set_sched_policy(mMyThreadId, SP_BACKGROUND); 1088440fd870b20b4720e11c9ea71d2a3284f8cf2f59Christopher Tate } 10898c6cedc9bc9a4b69616a79a95449f6f6b08c7bf1Dianne Hackborn } 1090440fd870b20b4720e11c9ea71d2a3284f8cf2f59Christopher Tate 1091a19954ab377b46dbcb9cbe8a6ab6d458f2e32bcaSteve Block //ALOGI(">>>> TRANSACT from pid %d uid %d\n", mCallingPid, mCallingUid); 10925ee2c9d20c0fbecf6b4a482eb8d8bfdf85d0d424Dianne Hackborn 1093edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project Parcel reply; 10945ee2c9d20c0fbecf6b4a482eb8d8bfdf85d0d424Dianne Hackborn status_t error; 1095edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project IF_LOG_TRANSACTIONS() { 1096edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project TextOutput::Bundle _b(alog); 1097edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project alog << "BR_TRANSACTION thr " << (void*)pthread_self() 1098edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project << " / obj " << tr.target.ptr << " / code " 1099edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project << TypeCode(tr.code) << ": " << indent << buffer 1100edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project << dedent << endl 1101edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project << "Data addr = " 1102edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project << reinterpret_cast<const uint8_t*>(tr.data.ptr.buffer) 1103edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project << ", offsets addr=" 1104edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project << reinterpret_cast<const size_t*>(tr.data.ptr.offsets) << endl; 1105edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } 1106edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project if (tr.target.ptr) { 1107c11146106f94e07016e8e26e4f8628f9a0c73199Dianne Hackborn // We only have a weak reference on the target object, so we must first try to 1108c11146106f94e07016e8e26e4f8628f9a0c73199Dianne Hackborn // safely acquire a strong reference before doing anything else with it. 1109c11146106f94e07016e8e26e4f8628f9a0c73199Dianne Hackborn if (reinterpret_cast<RefBase::weakref_type*>( 1110c11146106f94e07016e8e26e4f8628f9a0c73199Dianne Hackborn tr.target.ptr)->attemptIncStrong(this)) { 1111c11146106f94e07016e8e26e4f8628f9a0c73199Dianne Hackborn error = reinterpret_cast<BBinder*>(tr.cookie)->transact(tr.code, buffer, 1112c11146106f94e07016e8e26e4f8628f9a0c73199Dianne Hackborn &reply, tr.flags); 1113c11146106f94e07016e8e26e4f8628f9a0c73199Dianne Hackborn reinterpret_cast<BBinder*>(tr.cookie)->decStrong(this); 1114c11146106f94e07016e8e26e4f8628f9a0c73199Dianne Hackborn } else { 1115c11146106f94e07016e8e26e4f8628f9a0c73199Dianne Hackborn error = UNKNOWN_TRANSACTION; 1116c11146106f94e07016e8e26e4f8628f9a0c73199Dianne Hackborn } 11175273603e98d2db3bac656b7bcf5352c04c86d62fBrad Fitzpatrick 1118edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } else { 11195ee2c9d20c0fbecf6b4a482eb8d8bfdf85d0d424Dianne Hackborn error = the_context_object->transact(tr.code, buffer, &reply, tr.flags); 1120edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } 11215ee2c9d20c0fbecf6b4a482eb8d8bfdf85d0d424Dianne Hackborn 1122a19954ab377b46dbcb9cbe8a6ab6d458f2e32bcaSteve Block //ALOGI("<<<< TRANSACT from pid %d restore pid %d uid %d\n", 1123edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project // mCallingPid, origPid, origUid); 1124edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 1125edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project if ((tr.flags & TF_ONE_WAY) == 0) { 1126edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project LOG_ONEWAY("Sending reply to %d!", mCallingPid); 11275ee2c9d20c0fbecf6b4a482eb8d8bfdf85d0d424Dianne Hackborn if (error < NO_ERROR) reply.setError(error); 1128edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project sendReply(reply, 0); 1129edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } else { 1130edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project LOG_ONEWAY("NOT sending reply to %d!", mCallingPid); 1131edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } 1132edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 1133edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project mCallingPid = origPid; 1134edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project mCallingUid = origUid; 11355ee2c9d20c0fbecf6b4a482eb8d8bfdf85d0d424Dianne Hackborn mStrictModePolicy = origStrictModePolicy; 11365ee2c9d20c0fbecf6b4a482eb8d8bfdf85d0d424Dianne Hackborn mLastTransactionBinderFlags = origTransactionBinderFlags; 1137440fd870b20b4720e11c9ea71d2a3284f8cf2f59Christopher Tate 1138edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project IF_LOG_TRANSACTIONS() { 1139edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project TextOutput::Bundle _b(alog); 1140edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project alog << "BC_REPLY thr " << (void*)pthread_self() << " / obj " 1141edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project << tr.target.ptr << ": " << indent << reply << dedent << endl; 1142edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } 1143edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 1144edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } 1145edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project break; 1146edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 1147edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project case BR_DEAD_BINDER: 1148edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project { 1149f683e0163a84d93448b9388126902242367cd961Serban Constantinescu BpBinder *proxy = (BpBinder*)mIn.readPointer(); 1150edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project proxy->sendObituary(); 1151edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project mOut.writeInt32(BC_DEAD_BINDER_DONE); 1152f683e0163a84d93448b9388126902242367cd961Serban Constantinescu mOut.writePointer((uintptr_t)proxy); 1153edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } break; 1154edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 1155edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project case BR_CLEAR_DEATH_NOTIFICATION_DONE: 1156edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project { 1157f683e0163a84d93448b9388126902242367cd961Serban Constantinescu BpBinder *proxy = (BpBinder*)mIn.readPointer(); 1158edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project proxy->getWeakRefs()->decWeak(proxy); 1159edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } break; 1160edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 1161edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project case BR_FINISHED: 1162edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project result = TIMED_OUT; 1163edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project break; 1164edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 1165edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project case BR_NOOP: 1166edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project break; 1167edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 1168edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project case BR_SPAWN_LOOPER: 1169edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project mProcess->spawnPooledThread(false); 1170edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project break; 1171edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 1172edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project default: 1173edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project printf("*** BAD COMMAND %d received from Binder driver\n", cmd); 1174edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project result = UNKNOWN_ERROR; 1175edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project break; 1176edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } 1177edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 1178edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project if (result != NO_ERROR) { 1179edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project mLastError = result; 1180edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } 1181edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 1182edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project return result; 1183edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 1184edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 1185edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Projectvoid IPCThreadState::threadDestructor(void *st) 1186edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project{ 11878d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor IPCThreadState* const self = static_cast<IPCThreadState*>(st); 11888d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor if (self) { 11898d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor self->flushCommands(); 11906071da7ef84c60645572654504813d492b8b21d5Elliott Hughes#if defined(__ANDROID__) 1191db1597a98958b78dc0d8eced19ae1406382b70d6Johannes Carlsson if (self->mProcess->mDriverFD > 0) { 1192db1597a98958b78dc0d8eced19ae1406382b70d6Johannes Carlsson ioctl(self->mProcess->mDriverFD, BINDER_THREAD_EXIT, 0); 1193db1597a98958b78dc0d8eced19ae1406382b70d6Johannes Carlsson } 1194edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project#endif 11958d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor delete self; 11968d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor } 1197edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 1198edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 1199edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 12006f4f3ab36c5ed1df84eb3a9f7475f0ac42952f58Colin Crossvoid IPCThreadState::freeBuffer(Parcel* parcel, const uint8_t* data, 12016f4f3ab36c5ed1df84eb3a9f7475f0ac42952f58Colin Cross size_t /*dataSize*/, 12026f4f3ab36c5ed1df84eb3a9f7475f0ac42952f58Colin Cross const binder_size_t* /*objects*/, 12036f4f3ab36c5ed1df84eb3a9f7475f0ac42952f58Colin Cross size_t /*objectsSize*/, void* /*cookie*/) 1204edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project{ 1205a19954ab377b46dbcb9cbe8a6ab6d458f2e32bcaSteve Block //ALOGI("Freeing parcel %p", &parcel); 1206edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project IF_LOG_COMMANDS() { 1207edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project alog << "Writing BC_FREE_BUFFER for " << data << endl; 1208edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } 12096726347e8950d34ae162fb8d6a3680a871d359e2Steve Block ALOG_ASSERT(data != NULL, "Called with NULL data"); 1210edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project if (parcel != NULL) parcel->closeFileDescriptors(); 1211edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project IPCThreadState* state = self(); 1212edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project state->mOut.writeInt32(BC_FREE_BUFFER); 1213f683e0163a84d93448b9388126902242367cd961Serban Constantinescu state->mOut.writePointer((uintptr_t)data); 1214edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 1215edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 1216edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project}; // namespace android 1217