IPCThreadState.cpp revision a3206e690bcfe5c982a0d7fff7c845b83a3ed91f
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> 27edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project#include <utils/threads.h> 28edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 29208059f67ed2dd9fa025e07fcb6954d3cb61c79eMathias Agopian#include <private/binder/binder_module.h> 30208059f67ed2dd9fa025e07fcb6954d3cb61c79eMathias Agopian#include <private/binder/Static.h> 31edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 32edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project#include <errno.h> 33edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project#include <pthread.h> 34edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project#include <sched.h> 358fb2d25ff3e9ade7c03ebe52a89c671ee75ce484Yabin Cui#include <signal.h> 368fb2d25ff3e9ade7c03ebe52a89c671ee75ce484Yabin Cui#include <stdio.h> 378fb2d25ff3e9ade7c03ebe52a89c671ee75ce484Yabin Cui#include <sys/ioctl.h> 38edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project#include <sys/resource.h> 398fb2d25ff3e9ade7c03ebe52a89c671ee75ce484Yabin Cui#include <unistd.h> 40edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 41edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project#if LOG_NDEBUG 42edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 43edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project#define IF_LOG_TRANSACTIONS() if (false) 44edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project#define IF_LOG_COMMANDS() if (false) 45edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project#define LOG_REMOTEREFS(...) 46edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project#define IF_LOG_REMOTEREFS() if (false) 47edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project#define LOG_THREADPOOL(...) 48edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project#define LOG_ONEWAY(...) 49edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 50edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project#else 51edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 529f760150f6e0f39b9923cfdc875373606839ee00Steve Block#define IF_LOG_TRANSACTIONS() IF_ALOG(LOG_VERBOSE, "transact") 539f760150f6e0f39b9923cfdc875373606839ee00Steve Block#define IF_LOG_COMMANDS() IF_ALOG(LOG_VERBOSE, "ipc") 549f760150f6e0f39b9923cfdc875373606839ee00Steve Block#define LOG_REMOTEREFS(...) ALOG(LOG_DEBUG, "remoterefs", __VA_ARGS__) 559f760150f6e0f39b9923cfdc875373606839ee00Steve Block#define IF_LOG_REMOTEREFS() IF_ALOG(LOG_DEBUG, "remoterefs") 569f760150f6e0f39b9923cfdc875373606839ee00Steve Block#define LOG_THREADPOOL(...) ALOG(LOG_DEBUG, "threadpool", __VA_ARGS__) 579f760150f6e0f39b9923cfdc875373606839ee00Steve Block#define LOG_ONEWAY(...) ALOG(LOG_DEBUG, "ipc", __VA_ARGS__) 58edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 59edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project#endif 60edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 61edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project// --------------------------------------------------------------------------- 62edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 63edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Projectnamespace android { 64edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 65edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Projectstatic const char* getReturnString(size_t idx); 66edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Projectstatic const void* printReturnCommand(TextOutput& out, const void* _cmd); 67edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Projectstatic const void* printCommand(TextOutput& out, const void* _cmd); 68edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 698e5337de2c67c24f1e5c6144512e2a9ba9fefe12Chih-Hung Hsieh// Static const and functions will be optimized out if not used, 708e5337de2c67c24f1e5c6144512e2a9ba9fefe12Chih-Hung Hsieh// when LOG_NDEBUG and references in IF_LOG_COMMANDS() are optimized out. 71edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Projectstatic const char *kReturnStrings[] = { 72aefc9cda45adb00ec1cb2c8fbd03c50fd48499fbAndy McFadden "BR_ERROR", 73edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project "BR_OK", 74edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project "BR_TRANSACTION", 75edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project "BR_REPLY", 76edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project "BR_ACQUIRE_RESULT", 77edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project "BR_DEAD_REPLY", 78edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project "BR_TRANSACTION_COMPLETE", 79edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project "BR_INCREFS", 80edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project "BR_ACQUIRE", 81edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project "BR_RELEASE", 82edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project "BR_DECREFS", 83edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project "BR_ATTEMPT_ACQUIRE", 84edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project "BR_NOOP", 85edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project "BR_SPAWN_LOOPER", 86edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project "BR_FINISHED", 87edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project "BR_DEAD_BINDER", 88aefc9cda45adb00ec1cb2c8fbd03c50fd48499fbAndy McFadden "BR_CLEAR_DEATH_NOTIFICATION_DONE", 89aefc9cda45adb00ec1cb2c8fbd03c50fd48499fbAndy McFadden "BR_FAILED_REPLY" 90edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project}; 91edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 92edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Projectstatic const char *kCommandStrings[] = { 93edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project "BC_TRANSACTION", 94edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project "BC_REPLY", 95edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project "BC_ACQUIRE_RESULT", 96edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project "BC_FREE_BUFFER", 97edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project "BC_INCREFS", 98edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project "BC_ACQUIRE", 99edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project "BC_RELEASE", 100edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project "BC_DECREFS", 101edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project "BC_INCREFS_DONE", 102edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project "BC_ACQUIRE_DONE", 103edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project "BC_ATTEMPT_ACQUIRE", 104edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project "BC_REGISTER_LOOPER", 105edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project "BC_ENTER_LOOPER", 106edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project "BC_EXIT_LOOPER", 107edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project "BC_REQUEST_DEATH_NOTIFICATION", 108edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project "BC_CLEAR_DEATH_NOTIFICATION", 109edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project "BC_DEAD_BINDER_DONE" 110edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project}; 111edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 112edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Projectstatic const char* getReturnString(size_t idx) 113edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project{ 114edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project if (idx < sizeof(kReturnStrings) / sizeof(kReturnStrings[0])) 115edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project return kReturnStrings[idx]; 116edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project else 117edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project return "unknown"; 118edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 119edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 120edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Projectstatic const void* printBinderTransactionData(TextOutput& out, const void* data) 121edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project{ 122edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project const binder_transaction_data* btd = 123edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project (const binder_transaction_data*)data; 124aefc9cda45adb00ec1cb2c8fbd03c50fd48499fbAndy McFadden if (btd->target.handle < 1024) { 125aefc9cda45adb00ec1cb2c8fbd03c50fd48499fbAndy McFadden /* want to print descriptors in decimal; guess based on value */ 126aefc9cda45adb00ec1cb2c8fbd03c50fd48499fbAndy McFadden out << "target.desc=" << btd->target.handle; 127aefc9cda45adb00ec1cb2c8fbd03c50fd48499fbAndy McFadden } else { 128aefc9cda45adb00ec1cb2c8fbd03c50fd48499fbAndy McFadden out << "target.ptr=" << btd->target.ptr; 129aefc9cda45adb00ec1cb2c8fbd03c50fd48499fbAndy McFadden } 130aefc9cda45adb00ec1cb2c8fbd03c50fd48499fbAndy McFadden out << " (cookie " << btd->cookie << ")" << endl 1318e5337de2c67c24f1e5c6144512e2a9ba9fefe12Chih-Hung Hsieh << "code=" << TypeCode(btd->code) << ", flags=" << (void*)(long)btd->flags << endl 132edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project << "data=" << btd->data.ptr.buffer << " (" << (void*)btd->data_size 133edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project << " bytes)" << endl 134edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project << "offsets=" << btd->data.ptr.offsets << " (" << (void*)btd->offsets_size 135aefc9cda45adb00ec1cb2c8fbd03c50fd48499fbAndy McFadden << " bytes)"; 136edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project return btd+1; 137edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 138edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 139edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Projectstatic const void* printReturnCommand(TextOutput& out, const void* _cmd) 140edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project{ 141aefc9cda45adb00ec1cb2c8fbd03c50fd48499fbAndy McFadden static const size_t N = sizeof(kReturnStrings)/sizeof(kReturnStrings[0]); 142edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project const int32_t* cmd = (const int32_t*)_cmd; 14374debb0b8fc47d443aaf7fe79f7b67f53f735f7fBernhard Rosenkränzer uint32_t code = (uint32_t)*cmd++; 144aefc9cda45adb00ec1cb2c8fbd03c50fd48499fbAndy McFadden size_t cmdIndex = code & 0xff; 14574debb0b8fc47d443aaf7fe79f7b67f53f735f7fBernhard Rosenkränzer if (code == BR_ERROR) { 1468e5337de2c67c24f1e5c6144512e2a9ba9fefe12Chih-Hung Hsieh out << "BR_ERROR: " << (void*)(long)(*cmd++) << endl; 147edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project return cmd; 148aefc9cda45adb00ec1cb2c8fbd03c50fd48499fbAndy McFadden } else if (cmdIndex >= N) { 149edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project out << "Unknown reply: " << code << endl; 150edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project return cmd; 151edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } 152aefc9cda45adb00ec1cb2c8fbd03c50fd48499fbAndy McFadden out << kReturnStrings[cmdIndex]; 153edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 154edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project switch (code) { 155edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project case BR_TRANSACTION: 156edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project case BR_REPLY: { 157edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project out << ": " << indent; 158edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project cmd = (const int32_t *)printBinderTransactionData(out, cmd); 159edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project out << dedent; 160edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } break; 161edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 162edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project case BR_ACQUIRE_RESULT: { 163edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project const int32_t res = *cmd++; 164edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project out << ": " << res << (res ? " (SUCCESS)" : " (FAILURE)"); 165edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } break; 166edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 167edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project case BR_INCREFS: 168edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project case BR_ACQUIRE: 169edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project case BR_RELEASE: 170edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project case BR_DECREFS: { 171edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project const int32_t b = *cmd++; 172edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project const int32_t c = *cmd++; 1738e5337de2c67c24f1e5c6144512e2a9ba9fefe12Chih-Hung Hsieh out << ": target=" << (void*)(long)b << " (cookie " << (void*)(long)c << ")"; 174edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } break; 175edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 176edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project case BR_ATTEMPT_ACQUIRE: { 177edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project const int32_t p = *cmd++; 178edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project const int32_t b = *cmd++; 179edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project const int32_t c = *cmd++; 1808e5337de2c67c24f1e5c6144512e2a9ba9fefe12Chih-Hung Hsieh out << ": target=" << (void*)(long)b << " (cookie " << (void*)(long)c 181edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project << "), pri=" << p; 182edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } break; 183edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 184edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project case BR_DEAD_BINDER: 185edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project case BR_CLEAR_DEATH_NOTIFICATION_DONE: { 186edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project const int32_t c = *cmd++; 1878e5337de2c67c24f1e5c6144512e2a9ba9fefe12Chih-Hung Hsieh out << ": death cookie " << (void*)(long)c; 188edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } break; 189aefc9cda45adb00ec1cb2c8fbd03c50fd48499fbAndy McFadden 190aefc9cda45adb00ec1cb2c8fbd03c50fd48499fbAndy McFadden default: 191aefc9cda45adb00ec1cb2c8fbd03c50fd48499fbAndy McFadden // no details to show for: BR_OK, BR_DEAD_REPLY, 192aefc9cda45adb00ec1cb2c8fbd03c50fd48499fbAndy McFadden // BR_TRANSACTION_COMPLETE, BR_FINISHED 193aefc9cda45adb00ec1cb2c8fbd03c50fd48499fbAndy McFadden break; 194edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } 195edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 196edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project out << endl; 197edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project return cmd; 198edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 199edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 200edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Projectstatic const void* printCommand(TextOutput& out, const void* _cmd) 201edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project{ 202aefc9cda45adb00ec1cb2c8fbd03c50fd48499fbAndy McFadden static const size_t N = sizeof(kCommandStrings)/sizeof(kCommandStrings[0]); 203edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project const int32_t* cmd = (const int32_t*)_cmd; 20474debb0b8fc47d443aaf7fe79f7b67f53f735f7fBernhard Rosenkränzer uint32_t code = (uint32_t)*cmd++; 205aefc9cda45adb00ec1cb2c8fbd03c50fd48499fbAndy McFadden size_t cmdIndex = code & 0xff; 206aefc9cda45adb00ec1cb2c8fbd03c50fd48499fbAndy McFadden 207aefc9cda45adb00ec1cb2c8fbd03c50fd48499fbAndy McFadden if (cmdIndex >= N) { 208edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project out << "Unknown command: " << code << endl; 209edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project return cmd; 210edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } 211aefc9cda45adb00ec1cb2c8fbd03c50fd48499fbAndy McFadden out << kCommandStrings[cmdIndex]; 212aefc9cda45adb00ec1cb2c8fbd03c50fd48499fbAndy McFadden 213edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project switch (code) { 214edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project case BC_TRANSACTION: 215edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project case BC_REPLY: { 216edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project out << ": " << indent; 217edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project cmd = (const int32_t *)printBinderTransactionData(out, cmd); 218edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project out << dedent; 219edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } break; 220edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 221edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project case BC_ACQUIRE_RESULT: { 222edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project const int32_t res = *cmd++; 223edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project out << ": " << res << (res ? " (SUCCESS)" : " (FAILURE)"); 224edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } break; 225edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 226edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project case BC_FREE_BUFFER: { 227edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project const int32_t buf = *cmd++; 2288e5337de2c67c24f1e5c6144512e2a9ba9fefe12Chih-Hung Hsieh out << ": buffer=" << (void*)(long)buf; 229edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } break; 230edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 231edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project case BC_INCREFS: 232edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project case BC_ACQUIRE: 233edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project case BC_RELEASE: 234edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project case BC_DECREFS: { 235edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project const int32_t d = *cmd++; 236aefc9cda45adb00ec1cb2c8fbd03c50fd48499fbAndy McFadden out << ": desc=" << d; 237edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } break; 238edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 239edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project case BC_INCREFS_DONE: 240edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project case BC_ACQUIRE_DONE: { 241edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project const int32_t b = *cmd++; 242edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project const int32_t c = *cmd++; 2438e5337de2c67c24f1e5c6144512e2a9ba9fefe12Chih-Hung Hsieh out << ": target=" << (void*)(long)b << " (cookie " << (void*)(long)c << ")"; 244edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } break; 245edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 246edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project case BC_ATTEMPT_ACQUIRE: { 247edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project const int32_t p = *cmd++; 248edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project const int32_t d = *cmd++; 249aefc9cda45adb00ec1cb2c8fbd03c50fd48499fbAndy McFadden out << ": desc=" << d << ", pri=" << p; 250edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } break; 251edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 252edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project case BC_REQUEST_DEATH_NOTIFICATION: 253edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project case BC_CLEAR_DEATH_NOTIFICATION: { 254edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project const int32_t h = *cmd++; 255edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project const int32_t c = *cmd++; 2568e5337de2c67c24f1e5c6144512e2a9ba9fefe12Chih-Hung Hsieh out << ": handle=" << h << " (death cookie " << (void*)(long)c << ")"; 257edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } break; 258edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 259edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project case BC_DEAD_BINDER_DONE: { 260edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project const int32_t c = *cmd++; 2618e5337de2c67c24f1e5c6144512e2a9ba9fefe12Chih-Hung Hsieh out << ": death cookie " << (void*)(long)c; 262edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } break; 263aefc9cda45adb00ec1cb2c8fbd03c50fd48499fbAndy McFadden 264aefc9cda45adb00ec1cb2c8fbd03c50fd48499fbAndy McFadden default: 265aefc9cda45adb00ec1cb2c8fbd03c50fd48499fbAndy McFadden // no details to show for: BC_REGISTER_LOOPER, BC_ENTER_LOOPER, 266aefc9cda45adb00ec1cb2c8fbd03c50fd48499fbAndy McFadden // BC_EXIT_LOOPER 267aefc9cda45adb00ec1cb2c8fbd03c50fd48499fbAndy McFadden break; 268edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } 269edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 270edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project out << endl; 271edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project return cmd; 272edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 273edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 274edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Projectstatic pthread_mutex_t gTLSMutex = PTHREAD_MUTEX_INITIALIZER; 275edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Projectstatic bool gHaveTLS = false; 276edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Projectstatic pthread_key_t gTLS = 0; 277edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Projectstatic bool gShutdown = false; 2788c6cedc9bc9a4b69616a79a95449f6f6b08c7bf1Dianne Hackbornstatic bool gDisableBackgroundScheduling = false; 279edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 280edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source ProjectIPCThreadState* IPCThreadState::self() 281edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project{ 282edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project if (gHaveTLS) { 283edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Projectrestart: 284edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project const pthread_key_t k = gTLS; 285edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project IPCThreadState* st = (IPCThreadState*)pthread_getspecific(k); 286edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project if (st) return st; 287edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project return new IPCThreadState; 288edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } 289edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 290edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project if (gShutdown) return NULL; 291edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 292edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project pthread_mutex_lock(&gTLSMutex); 293edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project if (!gHaveTLS) { 294edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project if (pthread_key_create(&gTLS, threadDestructor) != 0) { 295edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project pthread_mutex_unlock(&gTLSMutex); 296edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project return NULL; 297edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } 298edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project gHaveTLS = true; 299edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } 300edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project pthread_mutex_unlock(&gTLSMutex); 301edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project goto restart; 302edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 303edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 3041b6084354710ca52c04ea361d751d19174802d57Brad FitzpatrickIPCThreadState* IPCThreadState::selfOrNull() 3051b6084354710ca52c04ea361d751d19174802d57Brad Fitzpatrick{ 3061b6084354710ca52c04ea361d751d19174802d57Brad Fitzpatrick if (gHaveTLS) { 3071b6084354710ca52c04ea361d751d19174802d57Brad Fitzpatrick const pthread_key_t k = gTLS; 3081b6084354710ca52c04ea361d751d19174802d57Brad Fitzpatrick IPCThreadState* st = (IPCThreadState*)pthread_getspecific(k); 3091b6084354710ca52c04ea361d751d19174802d57Brad Fitzpatrick return st; 3101b6084354710ca52c04ea361d751d19174802d57Brad Fitzpatrick } 3111b6084354710ca52c04ea361d751d19174802d57Brad Fitzpatrick return NULL; 3121b6084354710ca52c04ea361d751d19174802d57Brad Fitzpatrick} 3131b6084354710ca52c04ea361d751d19174802d57Brad Fitzpatrick 314edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Projectvoid IPCThreadState::shutdown() 315edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project{ 316edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project gShutdown = true; 317edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 318edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project if (gHaveTLS) { 319edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project // XXX Need to wait for all thread pool threads to exit! 320edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project IPCThreadState* st = (IPCThreadState*)pthread_getspecific(gTLS); 321edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project if (st) { 322edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project delete st; 323edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project pthread_setspecific(gTLS, NULL); 324edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } 325edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project gHaveTLS = false; 326edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } 327edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 328edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 3298c6cedc9bc9a4b69616a79a95449f6f6b08c7bf1Dianne Hackbornvoid IPCThreadState::disableBackgroundScheduling(bool disable) 3308c6cedc9bc9a4b69616a79a95449f6f6b08c7bf1Dianne Hackborn{ 3318c6cedc9bc9a4b69616a79a95449f6f6b08c7bf1Dianne Hackborn gDisableBackgroundScheduling = disable; 3328c6cedc9bc9a4b69616a79a95449f6f6b08c7bf1Dianne Hackborn} 3338c6cedc9bc9a4b69616a79a95449f6f6b08c7bf1Dianne Hackborn 334edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Projectsp<ProcessState> IPCThreadState::process() 335edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project{ 336edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project return mProcess; 337edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 338edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 339edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Projectstatus_t IPCThreadState::clearLastError() 340edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project{ 341edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project const status_t err = mLastError; 342edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project mLastError = NO_ERROR; 343edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project return err; 344edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 345edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 3469c634fd2d13722106d475b000b05babcce1f65beDan Stozapid_t IPCThreadState::getCallingPid() const 347edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project{ 348edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project return mCallingPid; 349edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 350edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 3519c634fd2d13722106d475b000b05babcce1f65beDan Stozauid_t IPCThreadState::getCallingUid() const 352edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project{ 353edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project return mCallingUid; 354edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 355edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 356edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Projectint64_t IPCThreadState::clearCallingIdentity() 357edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project{ 358edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project int64_t token = ((int64_t)mCallingUid<<32) | mCallingPid; 359edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project clearCaller(); 360edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project return token; 361edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 362edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 363702ea9d42f52fc145090c0f0bfbe64993e4b8b33Brad Fitzpatrickvoid IPCThreadState::setStrictModePolicy(int32_t policy) 364702ea9d42f52fc145090c0f0bfbe64993e4b8b33Brad Fitzpatrick{ 365702ea9d42f52fc145090c0f0bfbe64993e4b8b33Brad Fitzpatrick mStrictModePolicy = policy; 366702ea9d42f52fc145090c0f0bfbe64993e4b8b33Brad Fitzpatrick} 367702ea9d42f52fc145090c0f0bfbe64993e4b8b33Brad Fitzpatrick 368a877cd85b5a026384542e3271fc310d6a8fe24c6Brad Fitzpatrickint32_t IPCThreadState::getStrictModePolicy() const 369a877cd85b5a026384542e3271fc310d6a8fe24c6Brad Fitzpatrick{ 370702ea9d42f52fc145090c0f0bfbe64993e4b8b33Brad Fitzpatrick return mStrictModePolicy; 371702ea9d42f52fc145090c0f0bfbe64993e4b8b33Brad Fitzpatrick} 372702ea9d42f52fc145090c0f0bfbe64993e4b8b33Brad Fitzpatrick 3735273603e98d2db3bac656b7bcf5352c04c86d62fBrad Fitzpatrickvoid IPCThreadState::setLastTransactionBinderFlags(int32_t flags) 3745273603e98d2db3bac656b7bcf5352c04c86d62fBrad Fitzpatrick{ 3755273603e98d2db3bac656b7bcf5352c04c86d62fBrad Fitzpatrick mLastTransactionBinderFlags = flags; 3765273603e98d2db3bac656b7bcf5352c04c86d62fBrad Fitzpatrick} 3775273603e98d2db3bac656b7bcf5352c04c86d62fBrad Fitzpatrick 3785273603e98d2db3bac656b7bcf5352c04c86d62fBrad Fitzpatrickint32_t IPCThreadState::getLastTransactionBinderFlags() const 3795273603e98d2db3bac656b7bcf5352c04c86d62fBrad Fitzpatrick{ 3805273603e98d2db3bac656b7bcf5352c04c86d62fBrad Fitzpatrick return mLastTransactionBinderFlags; 3815273603e98d2db3bac656b7bcf5352c04c86d62fBrad Fitzpatrick} 3825273603e98d2db3bac656b7bcf5352c04c86d62fBrad Fitzpatrick 383edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Projectvoid IPCThreadState::restoreCallingIdentity(int64_t token) 384edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project{ 385edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project mCallingUid = (int)(token>>32); 386edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project mCallingPid = (int)token; 387edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 388edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 389edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Projectvoid IPCThreadState::clearCaller() 390edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project{ 391d43b194b69fca6c81023effc921fcc7576bad496Marco Nelissen mCallingPid = getpid(); 392d43b194b69fca6c81023effc921fcc7576bad496Marco Nelissen mCallingUid = getuid(); 393edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 394edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 395edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Projectvoid IPCThreadState::flushCommands() 396edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project{ 397edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project if (mProcess->mDriverFD <= 0) 398edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project return; 399edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project talkWithDriver(false); 400edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 401edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 402376b822728c582a9deb26ce339deb5204ae4d22eWale Ogunwalevoid IPCThreadState::blockUntilThreadAvailable() 403376b822728c582a9deb26ce339deb5204ae4d22eWale Ogunwale{ 404376b822728c582a9deb26ce339deb5204ae4d22eWale Ogunwale pthread_mutex_lock(&mProcess->mThreadCountLock); 405376b822728c582a9deb26ce339deb5204ae4d22eWale Ogunwale while (mProcess->mExecutingThreadsCount >= mProcess->mMaxThreads) { 406a3206e690bcfe5c982a0d7fff7c845b83a3ed91fWale Ogunwale ALOGW("Waiting for thread to be free. mExecutingThreadsCount=%lu mMaxThreads=%lu\n", 407a3206e690bcfe5c982a0d7fff7c845b83a3ed91fWale Ogunwale static_cast<unsigned long>(mProcess->mExecutingThreadsCount), 408a3206e690bcfe5c982a0d7fff7c845b83a3ed91fWale Ogunwale static_cast<unsigned long>(mProcess->mMaxThreads)); 409376b822728c582a9deb26ce339deb5204ae4d22eWale Ogunwale pthread_cond_wait(&mProcess->mThreadCountDecrement, &mProcess->mThreadCountLock); 410376b822728c582a9deb26ce339deb5204ae4d22eWale Ogunwale } 411376b822728c582a9deb26ce339deb5204ae4d22eWale Ogunwale pthread_mutex_unlock(&mProcess->mThreadCountLock); 412376b822728c582a9deb26ce339deb5204ae4d22eWale Ogunwale} 413376b822728c582a9deb26ce339deb5204ae4d22eWale Ogunwale 4148d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynorstatus_t IPCThreadState::getAndExecuteCommand() 4158d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor{ 4168d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor status_t result; 4178d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor int32_t cmd; 4188d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor 4198d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor result = talkWithDriver(); 4208d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor if (result >= NO_ERROR) { 4218d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor size_t IN = mIn.dataAvail(); 4228d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor if (IN < sizeof(int32_t)) return result; 4238d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor cmd = mIn.readInt32(); 4248d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor IF_LOG_COMMANDS() { 4258d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor alog << "Processing top-level Command: " 4268d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor << getReturnString(cmd) << endl; 4278d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor } 4288d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor 429376b822728c582a9deb26ce339deb5204ae4d22eWale Ogunwale pthread_mutex_lock(&mProcess->mThreadCountLock); 430376b822728c582a9deb26ce339deb5204ae4d22eWale Ogunwale mProcess->mExecutingThreadsCount++; 431376b822728c582a9deb26ce339deb5204ae4d22eWale Ogunwale pthread_mutex_unlock(&mProcess->mThreadCountLock); 432376b822728c582a9deb26ce339deb5204ae4d22eWale Ogunwale 4338d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor result = executeCommand(cmd); 4348d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor 435376b822728c582a9deb26ce339deb5204ae4d22eWale Ogunwale pthread_mutex_lock(&mProcess->mThreadCountLock); 436376b822728c582a9deb26ce339deb5204ae4d22eWale Ogunwale mProcess->mExecutingThreadsCount--; 437376b822728c582a9deb26ce339deb5204ae4d22eWale Ogunwale pthread_cond_broadcast(&mProcess->mThreadCountDecrement); 438376b822728c582a9deb26ce339deb5204ae4d22eWale Ogunwale pthread_mutex_unlock(&mProcess->mThreadCountLock); 439376b822728c582a9deb26ce339deb5204ae4d22eWale Ogunwale 4408d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor // After executing the command, ensure that the thread is returned to the 4418d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor // foreground cgroup before rejoining the pool. The driver takes care of 4428d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor // restoring the priority, but doesn't do anything with cgroups so we 4438d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor // need to take care of that here in userspace. Note that we do make 4448d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor // sure to go in the foreground after executing a transaction, but 4458d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor // there are other callbacks into user code that could have changed 4468d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor // our group so we want to make absolutely sure it is put back. 4478d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor set_sched_policy(mMyThreadId, SP_FOREGROUND); 4488d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor } 4498d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor 4508d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor return result; 4518d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor} 4528d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor 4538d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor// When we've cleared the incoming command queue, process any pending derefs 4548d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynorvoid IPCThreadState::processPendingDerefs() 4558d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor{ 4568d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor if (mIn.dataPosition() >= mIn.dataSize()) { 4578d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor size_t numPending = mPendingWeakDerefs.size(); 4588d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor if (numPending > 0) { 4598d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor for (size_t i = 0; i < numPending; i++) { 4608d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor RefBase::weakref_type* refs = mPendingWeakDerefs[i]; 4618d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor refs->decWeak(mProcess.get()); 4628d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor } 4638d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor mPendingWeakDerefs.clear(); 4648d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor } 4658d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor 4668d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor numPending = mPendingStrongDerefs.size(); 4678d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor if (numPending > 0) { 4688d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor for (size_t i = 0; i < numPending; i++) { 4698d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor BBinder* obj = mPendingStrongDerefs[i]; 4708d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor obj->decStrong(mProcess.get()); 4718d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor } 4728d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor mPendingStrongDerefs.clear(); 4738d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor } 4748d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor } 4758d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor} 4768d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor 477edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Projectvoid IPCThreadState::joinThreadPool(bool isMain) 478edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project{ 479edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project LOG_THREADPOOL("**** THREAD %p (PID %d) IS JOINING THE THREAD POOL\n", (void*)pthread_self(), getpid()); 480edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 481edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project mOut.writeInt32(isMain ? BC_ENTER_LOOPER : BC_REGISTER_LOOPER); 482edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 4838c6cedc9bc9a4b69616a79a95449f6f6b08c7bf1Dianne Hackborn // This thread may have been spawned by a thread that was in the background 484a26e1cfbbcb7dc5e0b1cd79a815362d6a048ef26Glenn Kasten // scheduling group, so first we will make sure it is in the foreground 4858c6cedc9bc9a4b69616a79a95449f6f6b08c7bf1Dianne Hackborn // one to avoid performing an initial transaction in the background. 486a26e1cfbbcb7dc5e0b1cd79a815362d6a048ef26Glenn Kasten set_sched_policy(mMyThreadId, SP_FOREGROUND); 4878c6cedc9bc9a4b69616a79a95449f6f6b08c7bf1Dianne Hackborn 488edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project status_t result; 489edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project do { 4908d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor processPendingDerefs(); 491edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project // now get the next command to be processed, waiting if necessary 4928d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor result = getAndExecuteCommand(); 493dcd3958c5086f757dc09472700ae7384efea7fc8Jason Parks 4948d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor if (result < NO_ERROR && result != TIMED_OUT && result != -ECONNREFUSED && result != -EBADF) { 4958d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor ALOGE("getAndExecuteCommand(fd=%d) returned unexpected error %d, aborting", 496ef07386e2fca73680214ececc3c9c0ecbb0f6d88Jeff Tinker mProcess->mDriverFD, result); 497ef07386e2fca73680214ececc3c9c0ecbb0f6d88Jeff Tinker abort(); 498edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } 499edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 500edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project // Let this thread exit the thread pool if it is no longer 501edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project // needed and it is not the main process thread. 502edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project if(result == TIMED_OUT && !isMain) { 503edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project break; 504edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } 505edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } while (result != -ECONNREFUSED && result != -EBADF); 506edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 507edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project LOG_THREADPOOL("**** THREAD %p (PID %d) IS LEAVING THE THREAD POOL err=%p\n", 508edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project (void*)pthread_self(), getpid(), (void*)result); 509edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 510edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project mOut.writeInt32(BC_EXIT_LOOPER); 511edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project talkWithDriver(false); 512edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 513edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 5148d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynorint IPCThreadState::setupPolling(int* fd) 5158d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor{ 5168d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor if (mProcess->mDriverFD <= 0) { 5178d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor return -EBADF; 5188d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor } 5198d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor 5208d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor mOut.writeInt32(BC_ENTER_LOOPER); 5218d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor *fd = mProcess->mDriverFD; 5228d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor return 0; 5238d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor} 5248d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor 5258d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynorstatus_t IPCThreadState::handlePolledCommands() 5268d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor{ 5278d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor status_t result; 5288d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor 5298d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor do { 5308d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor result = getAndExecuteCommand(); 5318d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor } while (mIn.dataPosition() < mIn.dataSize()); 5328d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor 5338d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor processPendingDerefs(); 5348d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor flushCommands(); 5358d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor return result; 5368d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor} 5378d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor 5386f4f3ab36c5ed1df84eb3a9f7475f0ac42952f58Colin Crossvoid IPCThreadState::stopProcess(bool /*immediate*/) 539edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project{ 540a19954ab377b46dbcb9cbe8a6ab6d458f2e32bcaSteve Block //ALOGI("**** STOPPING PROCESS"); 541edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project flushCommands(); 542edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project int fd = mProcess->mDriverFD; 543edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project mProcess->mDriverFD = -1; 544edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project close(fd); 545edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project //kill(getpid(), SIGKILL); 546edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 547edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 548edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Projectstatus_t IPCThreadState::transact(int32_t handle, 549edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project uint32_t code, const Parcel& data, 550edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project Parcel* reply, uint32_t flags) 551edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project{ 552edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project status_t err = data.errorCheck(); 553edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 554edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project flags |= TF_ACCEPT_FDS; 555edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 556edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project IF_LOG_TRANSACTIONS() { 557edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project TextOutput::Bundle _b(alog); 558edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project alog << "BC_TRANSACTION thr " << (void*)pthread_self() << " / hand " 559edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project << handle << " / code " << TypeCode(code) << ": " 560edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project << indent << data << dedent << endl; 561edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } 562edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 563edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project if (err == NO_ERROR) { 564edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project LOG_ONEWAY(">>>> SEND from pid %d uid %d %s", getpid(), getuid(), 565edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project (flags & TF_ONE_WAY) == 0 ? "READ REPLY" : "ONE WAY"); 566edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project err = writeTransactionData(BC_TRANSACTION, flags, handle, code, data, NULL); 567edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } 568edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 569edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project if (err != NO_ERROR) { 570edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project if (reply) reply->setError(err); 571edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project return (mLastError = err); 572edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } 573edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 574edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project if ((flags & TF_ONE_WAY) == 0) { 57567f78c4fe8f89b52199f509f36e42df0b1cdfe2dDianne Hackborn #if 0 57667f78c4fe8f89b52199f509f36e42df0b1cdfe2dDianne Hackborn if (code == 4) { // relayout 577a19954ab377b46dbcb9cbe8a6ab6d458f2e32bcaSteve Block ALOGI(">>>>>> CALLING transaction 4"); 57867f78c4fe8f89b52199f509f36e42df0b1cdfe2dDianne Hackborn } else { 579a19954ab377b46dbcb9cbe8a6ab6d458f2e32bcaSteve Block ALOGI(">>>>>> CALLING transaction %d", code); 58067f78c4fe8f89b52199f509f36e42df0b1cdfe2dDianne Hackborn } 58167f78c4fe8f89b52199f509f36e42df0b1cdfe2dDianne Hackborn #endif 582edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project if (reply) { 583edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project err = waitForResponse(reply); 584edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } else { 585edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project Parcel fakeReply; 586edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project err = waitForResponse(&fakeReply); 587edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } 58867f78c4fe8f89b52199f509f36e42df0b1cdfe2dDianne Hackborn #if 0 58967f78c4fe8f89b52199f509f36e42df0b1cdfe2dDianne Hackborn if (code == 4) { // relayout 590a19954ab377b46dbcb9cbe8a6ab6d458f2e32bcaSteve Block ALOGI("<<<<<< RETURNING transaction 4"); 59167f78c4fe8f89b52199f509f36e42df0b1cdfe2dDianne Hackborn } else { 592a19954ab377b46dbcb9cbe8a6ab6d458f2e32bcaSteve Block ALOGI("<<<<<< RETURNING transaction %d", code); 59367f78c4fe8f89b52199f509f36e42df0b1cdfe2dDianne Hackborn } 59467f78c4fe8f89b52199f509f36e42df0b1cdfe2dDianne Hackborn #endif 595edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 596edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project IF_LOG_TRANSACTIONS() { 597edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project TextOutput::Bundle _b(alog); 598edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project alog << "BR_REPLY thr " << (void*)pthread_self() << " / hand " 599edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project << handle << ": "; 600edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project if (reply) alog << indent << *reply << dedent << endl; 601edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project else alog << "(none requested)" << endl; 602edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } 603edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } else { 604edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project err = waitForResponse(NULL, NULL); 605edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } 606edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 607edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project return err; 608edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 609edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 610edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Projectvoid IPCThreadState::incStrongHandle(int32_t handle) 611edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project{ 612edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project LOG_REMOTEREFS("IPCThreadState::incStrongHandle(%d)\n", handle); 613edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project mOut.writeInt32(BC_ACQUIRE); 614edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project mOut.writeInt32(handle); 615edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 616edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 617edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Projectvoid IPCThreadState::decStrongHandle(int32_t handle) 618edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project{ 619edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project LOG_REMOTEREFS("IPCThreadState::decStrongHandle(%d)\n", handle); 620edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project mOut.writeInt32(BC_RELEASE); 621edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project mOut.writeInt32(handle); 622edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 623edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 624edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Projectvoid IPCThreadState::incWeakHandle(int32_t handle) 625edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project{ 626edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project LOG_REMOTEREFS("IPCThreadState::incWeakHandle(%d)\n", handle); 627edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project mOut.writeInt32(BC_INCREFS); 628edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project mOut.writeInt32(handle); 629edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 630edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 631edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Projectvoid IPCThreadState::decWeakHandle(int32_t handle) 632edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project{ 633edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project LOG_REMOTEREFS("IPCThreadState::decWeakHandle(%d)\n", handle); 634edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project mOut.writeInt32(BC_DECREFS); 635edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project mOut.writeInt32(handle); 636edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 637edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 638edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Projectstatus_t IPCThreadState::attemptIncStrongHandle(int32_t handle) 639edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project{ 64011cfdccfd3cfceb08732909a1489419ff0229694Arve Hjønnevåg#if HAS_BC_ATTEMPT_ACQUIRE 641aefc9cda45adb00ec1cb2c8fbd03c50fd48499fbAndy McFadden LOG_REMOTEREFS("IPCThreadState::attemptIncStrongHandle(%d)\n", handle); 642edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project mOut.writeInt32(BC_ATTEMPT_ACQUIRE); 643edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project mOut.writeInt32(0); // xxx was thread priority 644edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project mOut.writeInt32(handle); 645edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project status_t result = UNKNOWN_ERROR; 646edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 647edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project waitForResponse(NULL, &result); 648edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 649edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project#if LOG_REFCOUNTS 650edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project printf("IPCThreadState::attemptIncStrongHandle(%ld) = %s\n", 651edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project handle, result == NO_ERROR ? "SUCCESS" : "FAILURE"); 652edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project#endif 653edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 654edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project return result; 65511cfdccfd3cfceb08732909a1489419ff0229694Arve Hjønnevåg#else 65611cfdccfd3cfceb08732909a1489419ff0229694Arve Hjønnevåg (void)handle; 65711cfdccfd3cfceb08732909a1489419ff0229694Arve Hjønnevåg ALOGE("%s(%d): Not supported\n", __func__, handle); 65811cfdccfd3cfceb08732909a1489419ff0229694Arve Hjønnevåg return INVALID_OPERATION; 65911cfdccfd3cfceb08732909a1489419ff0229694Arve Hjønnevåg#endif 660edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 661edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 662edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Projectvoid IPCThreadState::expungeHandle(int32_t handle, IBinder* binder) 663edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project{ 664edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project#if LOG_REFCOUNTS 665edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project printf("IPCThreadState::expungeHandle(%ld)\n", handle); 666edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project#endif 667edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project self()->mProcess->expungeHandle(handle, binder); 668edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 669edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 670edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Projectstatus_t IPCThreadState::requestDeathNotification(int32_t handle, BpBinder* proxy) 671edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project{ 672edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project mOut.writeInt32(BC_REQUEST_DEATH_NOTIFICATION); 673edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project mOut.writeInt32((int32_t)handle); 674f683e0163a84d93448b9388126902242367cd961Serban Constantinescu mOut.writePointer((uintptr_t)proxy); 675edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project return NO_ERROR; 676edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 677edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 678edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Projectstatus_t IPCThreadState::clearDeathNotification(int32_t handle, BpBinder* proxy) 679edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project{ 680edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project mOut.writeInt32(BC_CLEAR_DEATH_NOTIFICATION); 681edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project mOut.writeInt32((int32_t)handle); 682f683e0163a84d93448b9388126902242367cd961Serban Constantinescu mOut.writePointer((uintptr_t)proxy); 683edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project return NO_ERROR; 684edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 685edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 686edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source ProjectIPCThreadState::IPCThreadState() 6875273603e98d2db3bac656b7bcf5352c04c86d62fBrad Fitzpatrick : mProcess(ProcessState::self()), 688fa6ad07c4ed44244f5220a422819919bc37528baElliott Hughes mMyThreadId(gettid()), 6895273603e98d2db3bac656b7bcf5352c04c86d62fBrad Fitzpatrick mStrictModePolicy(0), 6905273603e98d2db3bac656b7bcf5352c04c86d62fBrad Fitzpatrick mLastTransactionBinderFlags(0) 691edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project{ 692edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project pthread_setspecific(gTLS, this); 6938c6cedc9bc9a4b69616a79a95449f6f6b08c7bf1Dianne Hackborn clearCaller(); 694edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project mIn.setDataCapacity(256); 695edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project mOut.setDataCapacity(256); 696edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 697edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 698edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source ProjectIPCThreadState::~IPCThreadState() 699edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project{ 700edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 701edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 702edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Projectstatus_t IPCThreadState::sendReply(const Parcel& reply, uint32_t flags) 703edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project{ 704edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project status_t err; 705edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project status_t statusBuffer; 706edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project err = writeTransactionData(BC_REPLY, flags, -1, 0, reply, &statusBuffer); 707edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project if (err < NO_ERROR) return err; 708edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 709edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project return waitForResponse(NULL, NULL); 710edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 711edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 712edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Projectstatus_t IPCThreadState::waitForResponse(Parcel *reply, status_t *acquireResult) 713edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project{ 71474debb0b8fc47d443aaf7fe79f7b67f53f735f7fBernhard Rosenkränzer uint32_t cmd; 715edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project int32_t err; 716edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 717edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project while (1) { 718edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project if ((err=talkWithDriver()) < NO_ERROR) break; 719edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project err = mIn.errorCheck(); 720edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project if (err < NO_ERROR) break; 721edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project if (mIn.dataAvail() == 0) continue; 722edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 72374debb0b8fc47d443aaf7fe79f7b67f53f735f7fBernhard Rosenkränzer cmd = (uint32_t)mIn.readInt32(); 724edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 725edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project IF_LOG_COMMANDS() { 726edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project alog << "Processing waitForResponse Command: " 727edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project << getReturnString(cmd) << endl; 728edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } 729edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 730edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project switch (cmd) { 731edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project case BR_TRANSACTION_COMPLETE: 732edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project if (!reply && !acquireResult) goto finish; 733edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project break; 734edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 735edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project case BR_DEAD_REPLY: 736edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project err = DEAD_OBJECT; 737edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project goto finish; 738edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 739edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project case BR_FAILED_REPLY: 740edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project err = FAILED_TRANSACTION; 741edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project goto finish; 742edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 743edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project case BR_ACQUIRE_RESULT: 744edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project { 7456726347e8950d34ae162fb8d6a3680a871d359e2Steve Block ALOG_ASSERT(acquireResult != NULL, "Unexpected brACQUIRE_RESULT"); 746edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project const int32_t result = mIn.readInt32(); 747edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project if (!acquireResult) continue; 748edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project *acquireResult = result ? NO_ERROR : INVALID_OPERATION; 749edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } 750edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project goto finish; 751edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 752edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project case BR_REPLY: 753edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project { 754edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project binder_transaction_data tr; 755edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project err = mIn.read(&tr, sizeof(tr)); 7566726347e8950d34ae162fb8d6a3680a871d359e2Steve Block ALOG_ASSERT(err == NO_ERROR, "Not enough command data for brREPLY"); 757edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project if (err != NO_ERROR) goto finish; 758edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 759edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project if (reply) { 760edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project if ((tr.flags & TF_STATUS_CODE) == 0) { 761edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project reply->ipcSetDataReference( 762edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project reinterpret_cast<const uint8_t*>(tr.data.ptr.buffer), 763edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project tr.data_size, 76484e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg reinterpret_cast<const binder_size_t*>(tr.data.ptr.offsets), 76584e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg tr.offsets_size/sizeof(binder_size_t), 766edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project freeBuffer, this); 767edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } else { 76884e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg err = *reinterpret_cast<const status_t*>(tr.data.ptr.buffer); 769edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project freeBuffer(NULL, 770edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project reinterpret_cast<const uint8_t*>(tr.data.ptr.buffer), 771edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project tr.data_size, 77284e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg reinterpret_cast<const binder_size_t*>(tr.data.ptr.offsets), 77384e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg tr.offsets_size/sizeof(binder_size_t), this); 774edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } 775edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } else { 776edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project freeBuffer(NULL, 777edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project reinterpret_cast<const uint8_t*>(tr.data.ptr.buffer), 778edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project tr.data_size, 77984e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg reinterpret_cast<const binder_size_t*>(tr.data.ptr.offsets), 78084e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg tr.offsets_size/sizeof(binder_size_t), this); 781edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project continue; 782edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } 783edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } 784edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project goto finish; 785edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 786edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project default: 787edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project err = executeCommand(cmd); 788edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project if (err != NO_ERROR) goto finish; 789edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project break; 790edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } 791edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } 792edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 793edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Projectfinish: 794edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project if (err != NO_ERROR) { 795edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project if (acquireResult) *acquireResult = err; 796edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project if (reply) reply->setError(err); 797edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project mLastError = err; 798edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } 799edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 800edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project return err; 801edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 802edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 803edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Projectstatus_t IPCThreadState::talkWithDriver(bool doReceive) 804edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project{ 805db1597a98958b78dc0d8eced19ae1406382b70d6Johannes Carlsson if (mProcess->mDriverFD <= 0) { 806db1597a98958b78dc0d8eced19ae1406382b70d6Johannes Carlsson return -EBADF; 807db1597a98958b78dc0d8eced19ae1406382b70d6Johannes Carlsson } 808edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 809edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project binder_write_read bwr; 810edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 811edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project // Is the read buffer empty? 812edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project const bool needRead = mIn.dataPosition() >= mIn.dataSize(); 813edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 814edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project // We don't want to write anything if we are still reading 815edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project // from data left in the input buffer and the caller 816edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project // has requested to read the next data. 817edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project const size_t outAvail = (!doReceive || needRead) ? mOut.dataSize() : 0; 818edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 819edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project bwr.write_size = outAvail; 82084e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg bwr.write_buffer = (uintptr_t)mOut.data(); 821edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 822edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project // This is what we'll read. 823edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project if (doReceive && needRead) { 824edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project bwr.read_size = mIn.dataCapacity(); 82584e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg bwr.read_buffer = (uintptr_t)mIn.data(); 826edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } else { 827edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project bwr.read_size = 0; 828d640f89205e17d9f19b11c2954862f0945a40e7bBen Cheng bwr.read_buffer = 0; 829edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } 830aefc9cda45adb00ec1cb2c8fbd03c50fd48499fbAndy McFadden 831edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project IF_LOG_COMMANDS() { 832edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project TextOutput::Bundle _b(alog); 833edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project if (outAvail != 0) { 834edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project alog << "Sending commands to driver: " << indent; 835edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project const void* cmds = (const void*)bwr.write_buffer; 836edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project const void* end = ((const uint8_t*)cmds)+bwr.write_size; 837edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project alog << HexDump(cmds, bwr.write_size) << endl; 838edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project while (cmds < end) cmds = printCommand(alog, cmds); 839edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project alog << dedent; 840edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } 841edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project alog << "Size of receive buffer: " << bwr.read_size 842edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project << ", needRead: " << needRead << ", doReceive: " << doReceive << endl; 843edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } 844edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 845edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project // Return immediately if there is nothing to do. 846edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project if ((bwr.write_size == 0) && (bwr.read_size == 0)) return NO_ERROR; 847aefc9cda45adb00ec1cb2c8fbd03c50fd48499fbAndy McFadden 848edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project bwr.write_consumed = 0; 849edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project bwr.read_consumed = 0; 850edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project status_t err; 851edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project do { 852edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project IF_LOG_COMMANDS() { 853edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project alog << "About to read/write, write size = " << mOut.dataSize() << endl; 854edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } 855edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project#if defined(HAVE_ANDROID_OS) 856edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project if (ioctl(mProcess->mDriverFD, BINDER_WRITE_READ, &bwr) >= 0) 857edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project err = NO_ERROR; 858edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project else 859edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project err = -errno; 860edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project#else 861edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project err = INVALID_OPERATION; 862edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project#endif 863db1597a98958b78dc0d8eced19ae1406382b70d6Johannes Carlsson if (mProcess->mDriverFD <= 0) { 864db1597a98958b78dc0d8eced19ae1406382b70d6Johannes Carlsson err = -EBADF; 865db1597a98958b78dc0d8eced19ae1406382b70d6Johannes Carlsson } 866edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project IF_LOG_COMMANDS() { 867edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project alog << "Finished read/write, write size = " << mOut.dataSize() << endl; 868edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } 869edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } while (err == -EINTR); 870aefc9cda45adb00ec1cb2c8fbd03c50fd48499fbAndy McFadden 871edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project IF_LOG_COMMANDS() { 8726f4f3ab36c5ed1df84eb3a9f7475f0ac42952f58Colin Cross alog << "Our err: " << (void*)(intptr_t)err << ", write consumed: " 873edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project << bwr.write_consumed << " (of " << mOut.dataSize() 8748d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor << "), read consumed: " << bwr.read_consumed << endl; 875edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } 876edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 877edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project if (err >= NO_ERROR) { 878edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project if (bwr.write_consumed > 0) { 87984e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg if (bwr.write_consumed < mOut.dataSize()) 880edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project mOut.remove(0, bwr.write_consumed); 881edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project else 882edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project mOut.setDataSize(0); 883edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } 884edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project if (bwr.read_consumed > 0) { 885edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project mIn.setDataSize(bwr.read_consumed); 886edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project mIn.setDataPosition(0); 887edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } 888edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project IF_LOG_COMMANDS() { 889edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project TextOutput::Bundle _b(alog); 890edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project alog << "Remaining data size: " << mOut.dataSize() << endl; 891edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project alog << "Received commands from driver: " << indent; 892edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project const void* cmds = mIn.data(); 893edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project const void* end = mIn.data() + mIn.dataSize(); 894edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project alog << HexDump(cmds, mIn.dataSize()) << endl; 895edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project while (cmds < end) cmds = printReturnCommand(alog, cmds); 896edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project alog << dedent; 897edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } 898edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project return NO_ERROR; 899edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } 900edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 901edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project return err; 902edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 903edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 904edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Projectstatus_t IPCThreadState::writeTransactionData(int32_t cmd, uint32_t binderFlags, 905edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project int32_t handle, uint32_t code, const Parcel& data, status_t* statusBuffer) 906edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project{ 907edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project binder_transaction_data tr; 908edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 90907fd0f195db6d341cab4e54257f508d802c98832Arve Hjønnevåg tr.target.ptr = 0; /* Don't pass uninitialized stack data to a remote process */ 910edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project tr.target.handle = handle; 911edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project tr.code = code; 912edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project tr.flags = binderFlags; 913d547432f98889d57a8c37e91090664efe63da436Evgeniy Stepanov tr.cookie = 0; 914d547432f98889d57a8c37e91090664efe63da436Evgeniy Stepanov tr.sender_pid = 0; 915d547432f98889d57a8c37e91090664efe63da436Evgeniy Stepanov tr.sender_euid = 0; 916edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 917edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project const status_t err = data.errorCheck(); 918edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project if (err == NO_ERROR) { 919edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project tr.data_size = data.ipcDataSize(); 920edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project tr.data.ptr.buffer = data.ipcData(); 92184e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg tr.offsets_size = data.ipcObjectsCount()*sizeof(binder_size_t); 922edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project tr.data.ptr.offsets = data.ipcObjects(); 923edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } else if (statusBuffer) { 924edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project tr.flags |= TF_STATUS_CODE; 925edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project *statusBuffer = err; 926edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project tr.data_size = sizeof(status_t); 92787b30d0447829167b2d83f4f61f702638d937524Arve Hjønnevåg tr.data.ptr.buffer = reinterpret_cast<uintptr_t>(statusBuffer); 928edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project tr.offsets_size = 0; 92984e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg tr.data.ptr.offsets = 0; 930edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } else { 931edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project return (mLastError = err); 932edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } 933edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 934edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project mOut.writeInt32(cmd); 935edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project mOut.write(&tr, sizeof(tr)); 936edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 937edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project return NO_ERROR; 938edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 939edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 940edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Projectsp<BBinder> the_context_object; 941edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 942edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Projectvoid setTheContextObject(sp<BBinder> obj) 943edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project{ 944edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project the_context_object = obj; 945edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 946edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 947edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Projectstatus_t IPCThreadState::executeCommand(int32_t cmd) 948edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project{ 949edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project BBinder* obj; 950edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project RefBase::weakref_type* refs; 951edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project status_t result = NO_ERROR; 952edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 95374debb0b8fc47d443aaf7fe79f7b67f53f735f7fBernhard Rosenkränzer switch ((uint32_t)cmd) { 954edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project case BR_ERROR: 955edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project result = mIn.readInt32(); 956edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project break; 957edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 958edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project case BR_OK: 959edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project break; 960edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 961edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project case BR_ACQUIRE: 962f683e0163a84d93448b9388126902242367cd961Serban Constantinescu refs = (RefBase::weakref_type*)mIn.readPointer(); 963f683e0163a84d93448b9388126902242367cd961Serban Constantinescu obj = (BBinder*)mIn.readPointer(); 9646726347e8950d34ae162fb8d6a3680a871d359e2Steve Block ALOG_ASSERT(refs->refBase() == obj, 965edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project "BR_ACQUIRE: object %p does not match cookie %p (expected %p)", 966edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project refs, obj, refs->refBase()); 967edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project obj->incStrong(mProcess.get()); 968edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project IF_LOG_REMOTEREFS() { 969edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project LOG_REMOTEREFS("BR_ACQUIRE from driver on %p", obj); 970edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project obj->printRefs(); 971edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } 972edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project mOut.writeInt32(BC_ACQUIRE_DONE); 973f683e0163a84d93448b9388126902242367cd961Serban Constantinescu mOut.writePointer((uintptr_t)refs); 974f683e0163a84d93448b9388126902242367cd961Serban Constantinescu mOut.writePointer((uintptr_t)obj); 975edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project break; 976edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 977edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project case BR_RELEASE: 978f683e0163a84d93448b9388126902242367cd961Serban Constantinescu refs = (RefBase::weakref_type*)mIn.readPointer(); 979f683e0163a84d93448b9388126902242367cd961Serban Constantinescu obj = (BBinder*)mIn.readPointer(); 9806726347e8950d34ae162fb8d6a3680a871d359e2Steve Block ALOG_ASSERT(refs->refBase() == obj, 981edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project "BR_RELEASE: object %p does not match cookie %p (expected %p)", 982edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project refs, obj, refs->refBase()); 983edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project IF_LOG_REMOTEREFS() { 984edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project LOG_REMOTEREFS("BR_RELEASE from driver on %p", obj); 985edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project obj->printRefs(); 986edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } 987edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project mPendingStrongDerefs.push(obj); 988edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project break; 989edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 990edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project case BR_INCREFS: 991f683e0163a84d93448b9388126902242367cd961Serban Constantinescu refs = (RefBase::weakref_type*)mIn.readPointer(); 992f683e0163a84d93448b9388126902242367cd961Serban Constantinescu obj = (BBinder*)mIn.readPointer(); 993edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project refs->incWeak(mProcess.get()); 994edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project mOut.writeInt32(BC_INCREFS_DONE); 995f683e0163a84d93448b9388126902242367cd961Serban Constantinescu mOut.writePointer((uintptr_t)refs); 996f683e0163a84d93448b9388126902242367cd961Serban Constantinescu mOut.writePointer((uintptr_t)obj); 997edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project break; 998edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 999edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project case BR_DECREFS: 1000f683e0163a84d93448b9388126902242367cd961Serban Constantinescu refs = (RefBase::weakref_type*)mIn.readPointer(); 1001f683e0163a84d93448b9388126902242367cd961Serban Constantinescu obj = (BBinder*)mIn.readPointer(); 1002edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project // NOTE: This assertion is not valid, because the object may no 1003edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project // longer exist (thus the (BBinder*)cast above resulting in a different 1004edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project // memory address). 10056726347e8950d34ae162fb8d6a3680a871d359e2Steve Block //ALOG_ASSERT(refs->refBase() == obj, 1006edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project // "BR_DECREFS: object %p does not match cookie %p (expected %p)", 1007edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project // refs, obj, refs->refBase()); 1008edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project mPendingWeakDerefs.push(refs); 1009edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project break; 1010edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 1011edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project case BR_ATTEMPT_ACQUIRE: 1012f683e0163a84d93448b9388126902242367cd961Serban Constantinescu refs = (RefBase::weakref_type*)mIn.readPointer(); 1013f683e0163a84d93448b9388126902242367cd961Serban Constantinescu obj = (BBinder*)mIn.readPointer(); 1014edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 1015edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project { 1016edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project const bool success = refs->attemptIncStrong(mProcess.get()); 10176726347e8950d34ae162fb8d6a3680a871d359e2Steve Block ALOG_ASSERT(success && refs->refBase() == obj, 1018edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project "BR_ATTEMPT_ACQUIRE: object %p does not match cookie %p (expected %p)", 1019edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project refs, obj, refs->refBase()); 1020edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 1021edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project mOut.writeInt32(BC_ACQUIRE_RESULT); 1022edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project mOut.writeInt32((int32_t)success); 1023edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } 1024edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project break; 1025edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 1026edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project case BR_TRANSACTION: 1027edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project { 1028edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project binder_transaction_data tr; 1029edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project result = mIn.read(&tr, sizeof(tr)); 10306726347e8950d34ae162fb8d6a3680a871d359e2Steve Block ALOG_ASSERT(result == NO_ERROR, 1031edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project "Not enough command data for brTRANSACTION"); 1032edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project if (result != NO_ERROR) break; 1033edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 1034edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project Parcel buffer; 1035edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project buffer.ipcSetDataReference( 1036edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project reinterpret_cast<const uint8_t*>(tr.data.ptr.buffer), 1037edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project tr.data_size, 103884e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg reinterpret_cast<const binder_size_t*>(tr.data.ptr.offsets), 103984e625ac1e01f5a9c3ed16664da6498212ed662bArve Hjønnevåg tr.offsets_size/sizeof(binder_size_t), freeBuffer, this); 1040edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 1041edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project const pid_t origPid = mCallingPid; 1042edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project const uid_t origUid = mCallingUid; 10435ee2c9d20c0fbecf6b4a482eb8d8bfdf85d0d424Dianne Hackborn const int32_t origStrictModePolicy = mStrictModePolicy; 10445ee2c9d20c0fbecf6b4a482eb8d8bfdf85d0d424Dianne Hackborn const int32_t origTransactionBinderFlags = mLastTransactionBinderFlags; 10455ee2c9d20c0fbecf6b4a482eb8d8bfdf85d0d424Dianne Hackborn 1046edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project mCallingPid = tr.sender_pid; 1047edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project mCallingUid = tr.sender_euid; 10485ee2c9d20c0fbecf6b4a482eb8d8bfdf85d0d424Dianne Hackborn mLastTransactionBinderFlags = tr.flags; 10495ee2c9d20c0fbecf6b4a482eb8d8bfdf85d0d424Dianne Hackborn 1050440fd870b20b4720e11c9ea71d2a3284f8cf2f59Christopher Tate int curPrio = getpriority(PRIO_PROCESS, mMyThreadId); 1051440fd870b20b4720e11c9ea71d2a3284f8cf2f59Christopher Tate if (gDisableBackgroundScheduling) { 1052440fd870b20b4720e11c9ea71d2a3284f8cf2f59Christopher Tate if (curPrio > ANDROID_PRIORITY_NORMAL) { 1053440fd870b20b4720e11c9ea71d2a3284f8cf2f59Christopher Tate // We have inherited a reduced priority from the caller, but do not 1054440fd870b20b4720e11c9ea71d2a3284f8cf2f59Christopher Tate // want to run in that state in this process. The driver set our 1055440fd870b20b4720e11c9ea71d2a3284f8cf2f59Christopher Tate // priority already (though not our scheduling class), so bounce 1056440fd870b20b4720e11c9ea71d2a3284f8cf2f59Christopher Tate // it back to the default before invoking the transaction. 1057440fd870b20b4720e11c9ea71d2a3284f8cf2f59Christopher Tate setpriority(PRIO_PROCESS, mMyThreadId, ANDROID_PRIORITY_NORMAL); 1058440fd870b20b4720e11c9ea71d2a3284f8cf2f59Christopher Tate } 1059440fd870b20b4720e11c9ea71d2a3284f8cf2f59Christopher Tate } else { 1060440fd870b20b4720e11c9ea71d2a3284f8cf2f59Christopher Tate if (curPrio >= ANDROID_PRIORITY_BACKGROUND) { 1061440fd870b20b4720e11c9ea71d2a3284f8cf2f59Christopher Tate // We want to use the inherited priority from the caller. 1062440fd870b20b4720e11c9ea71d2a3284f8cf2f59Christopher Tate // Ensure this thread is in the background scheduling class, 1063440fd870b20b4720e11c9ea71d2a3284f8cf2f59Christopher Tate // since the driver won't modify scheduling classes for us. 1064440fd870b20b4720e11c9ea71d2a3284f8cf2f59Christopher Tate // The scheduling group is reset to default by the caller 1065440fd870b20b4720e11c9ea71d2a3284f8cf2f59Christopher Tate // once this method returns after the transaction is complete. 1066a26e1cfbbcb7dc5e0b1cd79a815362d6a048ef26Glenn Kasten set_sched_policy(mMyThreadId, SP_BACKGROUND); 1067440fd870b20b4720e11c9ea71d2a3284f8cf2f59Christopher Tate } 10688c6cedc9bc9a4b69616a79a95449f6f6b08c7bf1Dianne Hackborn } 1069440fd870b20b4720e11c9ea71d2a3284f8cf2f59Christopher Tate 1070a19954ab377b46dbcb9cbe8a6ab6d458f2e32bcaSteve Block //ALOGI(">>>> TRANSACT from pid %d uid %d\n", mCallingPid, mCallingUid); 10715ee2c9d20c0fbecf6b4a482eb8d8bfdf85d0d424Dianne Hackborn 1072edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project Parcel reply; 10735ee2c9d20c0fbecf6b4a482eb8d8bfdf85d0d424Dianne Hackborn status_t error; 1074edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project IF_LOG_TRANSACTIONS() { 1075edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project TextOutput::Bundle _b(alog); 1076edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project alog << "BR_TRANSACTION thr " << (void*)pthread_self() 1077edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project << " / obj " << tr.target.ptr << " / code " 1078edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project << TypeCode(tr.code) << ": " << indent << buffer 1079edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project << dedent << endl 1080edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project << "Data addr = " 1081edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project << reinterpret_cast<const uint8_t*>(tr.data.ptr.buffer) 1082edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project << ", offsets addr=" 1083edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project << reinterpret_cast<const size_t*>(tr.data.ptr.offsets) << endl; 1084edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } 1085edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project if (tr.target.ptr) { 1086edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project sp<BBinder> b((BBinder*)tr.cookie); 10875ee2c9d20c0fbecf6b4a482eb8d8bfdf85d0d424Dianne Hackborn error = b->transact(tr.code, buffer, &reply, tr.flags); 10885273603e98d2db3bac656b7bcf5352c04c86d62fBrad Fitzpatrick 1089edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } else { 10905ee2c9d20c0fbecf6b4a482eb8d8bfdf85d0d424Dianne Hackborn error = the_context_object->transact(tr.code, buffer, &reply, tr.flags); 1091edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } 10925ee2c9d20c0fbecf6b4a482eb8d8bfdf85d0d424Dianne Hackborn 1093a19954ab377b46dbcb9cbe8a6ab6d458f2e32bcaSteve Block //ALOGI("<<<< TRANSACT from pid %d restore pid %d uid %d\n", 1094edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project // mCallingPid, origPid, origUid); 1095edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 1096edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project if ((tr.flags & TF_ONE_WAY) == 0) { 1097edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project LOG_ONEWAY("Sending reply to %d!", mCallingPid); 10985ee2c9d20c0fbecf6b4a482eb8d8bfdf85d0d424Dianne Hackborn if (error < NO_ERROR) reply.setError(error); 1099edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project sendReply(reply, 0); 1100edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } else { 1101edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project LOG_ONEWAY("NOT sending reply to %d!", mCallingPid); 1102edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } 1103edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 1104edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project mCallingPid = origPid; 1105edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project mCallingUid = origUid; 11065ee2c9d20c0fbecf6b4a482eb8d8bfdf85d0d424Dianne Hackborn mStrictModePolicy = origStrictModePolicy; 11075ee2c9d20c0fbecf6b4a482eb8d8bfdf85d0d424Dianne Hackborn mLastTransactionBinderFlags = origTransactionBinderFlags; 1108440fd870b20b4720e11c9ea71d2a3284f8cf2f59Christopher Tate 1109edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project IF_LOG_TRANSACTIONS() { 1110edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project TextOutput::Bundle _b(alog); 1111edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project alog << "BC_REPLY thr " << (void*)pthread_self() << " / obj " 1112edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project << tr.target.ptr << ": " << indent << reply << dedent << endl; 1113edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } 1114edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 1115edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } 1116edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project break; 1117edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 1118edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project case BR_DEAD_BINDER: 1119edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project { 1120f683e0163a84d93448b9388126902242367cd961Serban Constantinescu BpBinder *proxy = (BpBinder*)mIn.readPointer(); 1121edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project proxy->sendObituary(); 1122edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project mOut.writeInt32(BC_DEAD_BINDER_DONE); 1123f683e0163a84d93448b9388126902242367cd961Serban Constantinescu mOut.writePointer((uintptr_t)proxy); 1124edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } break; 1125edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 1126edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project case BR_CLEAR_DEATH_NOTIFICATION_DONE: 1127edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project { 1128f683e0163a84d93448b9388126902242367cd961Serban Constantinescu BpBinder *proxy = (BpBinder*)mIn.readPointer(); 1129edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project proxy->getWeakRefs()->decWeak(proxy); 1130edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } break; 1131edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 1132edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project case BR_FINISHED: 1133edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project result = TIMED_OUT; 1134edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project break; 1135edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 1136edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project case BR_NOOP: 1137edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project break; 1138edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 1139edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project case BR_SPAWN_LOOPER: 1140edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project mProcess->spawnPooledThread(false); 1141edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project break; 1142edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 1143edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project default: 1144edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project printf("*** BAD COMMAND %d received from Binder driver\n", cmd); 1145edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project result = UNKNOWN_ERROR; 1146edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project break; 1147edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } 1148edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 1149edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project if (result != NO_ERROR) { 1150edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project mLastError = result; 1151edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } 1152edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 1153edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project return result; 1154edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 1155edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 1156edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Projectvoid IPCThreadState::threadDestructor(void *st) 1157edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project{ 11588d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor IPCThreadState* const self = static_cast<IPCThreadState*>(st); 11598d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor if (self) { 11608d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor self->flushCommands(); 1161edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project#if defined(HAVE_ANDROID_OS) 1162db1597a98958b78dc0d8eced19ae1406382b70d6Johannes Carlsson if (self->mProcess->mDriverFD > 0) { 1163db1597a98958b78dc0d8eced19ae1406382b70d6Johannes Carlsson ioctl(self->mProcess->mDriverFD, BINDER_THREAD_EXIT, 0); 1164db1597a98958b78dc0d8eced19ae1406382b70d6Johannes Carlsson } 1165edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project#endif 11668d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor delete self; 11678d96cab8bfc1b40a8e05c6f43b485750a5ae0a52Todd Poynor } 1168edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 1169edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 1170edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 11716f4f3ab36c5ed1df84eb3a9f7475f0ac42952f58Colin Crossvoid IPCThreadState::freeBuffer(Parcel* parcel, const uint8_t* data, 11726f4f3ab36c5ed1df84eb3a9f7475f0ac42952f58Colin Cross size_t /*dataSize*/, 11736f4f3ab36c5ed1df84eb3a9f7475f0ac42952f58Colin Cross const binder_size_t* /*objects*/, 11746f4f3ab36c5ed1df84eb3a9f7475f0ac42952f58Colin Cross size_t /*objectsSize*/, void* /*cookie*/) 1175edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project{ 1176a19954ab377b46dbcb9cbe8a6ab6d458f2e32bcaSteve Block //ALOGI("Freeing parcel %p", &parcel); 1177edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project IF_LOG_COMMANDS() { 1178edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project alog << "Writing BC_FREE_BUFFER for " << data << endl; 1179edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } 11806726347e8950d34ae162fb8d6a3680a871d359e2Steve Block ALOG_ASSERT(data != NULL, "Called with NULL data"); 1181edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project if (parcel != NULL) parcel->closeFileDescriptors(); 1182edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project IPCThreadState* state = self(); 1183edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project state->mOut.writeInt32(BC_FREE_BUFFER); 1184f683e0163a84d93448b9388126902242367cd961Serban Constantinescu state->mOut.writePointer((uintptr_t)data); 1185edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 1186edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 1187edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project}; // namespace android 1188