1dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project/* 2dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * Copyright (C) 2008 The Android Open Source Project 3dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * 4dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * Licensed under the Apache License, Version 2.0 (the "License"); 5dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * you may not use this file except in compliance with the License. 6dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * You may obtain a copy of the License at 7dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * 8dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * http://www.apache.org/licenses/LICENSE-2.0 9dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * 10dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * Unless required by applicable law or agreed to in writing, software 11dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * distributed under the License is distributed on an "AS IS" BASIS, 12dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * See the License for the specific language governing permissions and 14dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * limitations under the License. 15dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project */ 16dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project/* 17dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * Intercepts log messages intended for the Android log device. 18dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * When running in the context of the simulator, the messages are 19dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * passed on to the underlying (fake) log device. When not in the 20dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * simulator, messages are printed to stderr. 21dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project */ 22dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#include "cutils/logd.h" 23dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 24dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#include <stdlib.h> 25dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#include <string.h> 26dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#include <ctype.h> 27dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#include <errno.h> 28dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#include <fcntl.h> 29dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 30dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#ifdef HAVE_PTHREADS 31dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#include <pthread.h> 32dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#endif 33dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 34dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#define kMaxTagLen 16 /* from the long-dead utils/Log.cpp */ 35dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 36dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#define kTagSetSize 16 /* arbitrary */ 37dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 38dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#if 0 39dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#define TRACE(...) printf("fake_log_device: " __VA_ARGS__) 40dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#else 41dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#define TRACE(...) ((void)0) 42dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#endif 43dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 44dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project/* from the long-dead utils/Log.cpp */ 45dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projecttypedef enum { 46dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project FORMAT_OFF = 0, 47dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project FORMAT_BRIEF, 48dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project FORMAT_PROCESS, 49dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project FORMAT_TAG, 50dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project FORMAT_THREAD, 51dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project FORMAT_RAW, 52dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project FORMAT_TIME, 53dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project FORMAT_THREADTIME, 54dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project FORMAT_LONG 55dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project} LogFormat; 56dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 57dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 58dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project/* 59dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * Log driver state. 60dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project */ 61dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projecttypedef struct LogState { 62dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project /* the fake fd that's seen by the user */ 63dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project int fakeFd; 64dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 65dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project /* a printable name for this fake device */ 66dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project char *debugName; 67dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 68dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project /* nonzero if this is a binary log */ 69dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project int isBinary; 70dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 71dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project /* global minimum priority */ 72dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project int globalMinPriority; 73dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 74dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project /* output format */ 75dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project LogFormat outputFormat; 76dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 77dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project /* tags and priorities */ 78dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project struct { 79dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project char tag[kMaxTagLen]; 80dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project int minPriority; 81dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } tagSet[kTagSetSize]; 82dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project} LogState; 83dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 84dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 85dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#ifdef HAVE_PTHREADS 86dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project/* 87dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * Locking. Since we're emulating a device, we need to be prepared 88dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * to have multiple callers at the same time. This lock is used 89dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * to both protect the fd list and to prevent LogStates from being 90dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * freed out from under a user. 91dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project */ 92dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectstatic pthread_mutex_t fakeLogDeviceLock = PTHREAD_MUTEX_INITIALIZER; 93dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 94dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectstatic void lock() 95dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project{ 96dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project pthread_mutex_lock(&fakeLogDeviceLock); 97dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project} 98dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 99dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectstatic void unlock() 100dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project{ 101dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project pthread_mutex_unlock(&fakeLogDeviceLock); 102dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project} 103dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#else // !HAVE_PTHREADS 104dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#define lock() ((void)0) 105dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#define unlock() ((void)0) 106dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#endif // !HAVE_PTHREADS 107dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 108dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 109dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project/* 110dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * File descriptor management. 111dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project */ 112dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#define FAKE_FD_BASE 10000 113dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#define MAX_OPEN_LOGS 16 114dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectstatic LogState *openLogTable[MAX_OPEN_LOGS]; 115dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 116dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project/* 117dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * Allocate an fd and associate a new LogState with it. 118dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * The fd is available via the fakeFd field of the return value. 119dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project */ 120dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectstatic LogState *createLogState() 121dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project{ 122dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project size_t i; 123dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 124dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project for (i = 0; i < sizeof(openLogTable); i++) { 125dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (openLogTable[i] == NULL) { 126dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project openLogTable[i] = calloc(1, sizeof(LogState)); 127dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project openLogTable[i]->fakeFd = FAKE_FD_BASE + i; 128dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return openLogTable[i]; 129dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 130dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 131dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return NULL; 132dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project} 133dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 134dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project/* 135dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * Translate an fd to a LogState. 136dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project */ 137dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectstatic LogState *fdToLogState(int fd) 138dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project{ 139dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (fd >= FAKE_FD_BASE && fd < FAKE_FD_BASE + MAX_OPEN_LOGS) { 140dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return openLogTable[fd - FAKE_FD_BASE]; 141dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 142dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return NULL; 143dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project} 144dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 145dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project/* 146dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * Unregister the fake fd and free the memory it pointed to. 147dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project */ 148dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectstatic void deleteFakeFd(int fd) 149dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project{ 150dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project LogState *ls; 151dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 152dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project lock(); 153dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 154dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project ls = fdToLogState(fd); 155dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (ls != NULL) { 156dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project openLogTable[fd - FAKE_FD_BASE] = NULL; 157dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project free(ls->debugName); 158dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project free(ls); 159dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 160dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 161dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project unlock(); 162dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project} 163dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 164dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project/* 165dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * Configure logging based on ANDROID_LOG_TAGS environment variable. We 166dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * need to parse a string that looks like 167dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * 168dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * *:v jdwp:d dalvikvm:d dalvikvm-gc:i dalvikvmi:i 169dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * 170dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * The tag (or '*' for the global level) comes first, followed by a colon 171dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * and a letter indicating the minimum priority level we're expected to log. 172dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * This can be used to reveal or conceal logs with specific tags. 173dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * 174dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * We also want to check ANDROID_PRINTF_LOG to determine how the output 175dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * will look. 176dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project */ 177dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectstatic void configureInitialState(const char* pathName, LogState* logState) 178dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project{ 179dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project static const int kDevLogLen = sizeof("/dev/log/") - 1; 180dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 181dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project logState->debugName = strdup(pathName); 182dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 183dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project /* identify binary logs */ 184dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (strcmp(pathName + kDevLogLen, "events") == 0) { 185dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project logState->isBinary = 1; 186dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 187dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 188dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project /* global min priority defaults to "info" level */ 189dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project logState->globalMinPriority = ANDROID_LOG_INFO; 190dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 191dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project /* 192dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * This is based on the the long-dead utils/Log.cpp code. 193dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project */ 194dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project const char* tags = getenv("ANDROID_LOG_TAGS"); 195dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project TRACE("Found ANDROID_LOG_TAGS='%s'\n", tags); 196dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (tags != NULL) { 197dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project int entry = 0; 198dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 199dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project while (*tags != '\0') { 200dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project char tagName[kMaxTagLen]; 201dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project int i, minPrio; 202dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 203dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project while (isspace(*tags)) 204dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project tags++; 205dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 206dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project i = 0; 207dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project while (*tags != '\0' && !isspace(*tags) && *tags != ':' && 208dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project i < kMaxTagLen) 209dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project { 210dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project tagName[i++] = *tags++; 211dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 212dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (i == kMaxTagLen) { 213dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project TRACE("ERROR: env tag too long (%d chars max)\n", kMaxTagLen-1); 214dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return; 215dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 216dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project tagName[i] = '\0'; 217dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 218dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project /* default priority, if there's no ":" part; also zero out '*' */ 219dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project minPrio = ANDROID_LOG_VERBOSE; 220dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (tagName[0] == '*' && tagName[1] == '\0') { 221dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project minPrio = ANDROID_LOG_DEBUG; 222dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project tagName[0] = '\0'; 223dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 224dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 225dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (*tags == ':') { 226dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project tags++; 227dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (*tags >= '0' && *tags <= '9') { 228dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (*tags >= ('0' + ANDROID_LOG_SILENT)) 229dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project minPrio = ANDROID_LOG_VERBOSE; 230dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project else 231dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project minPrio = *tags - '\0'; 232dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } else { 233dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project switch (*tags) { 234dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project case 'v': minPrio = ANDROID_LOG_VERBOSE; break; 235dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project case 'd': minPrio = ANDROID_LOG_DEBUG; break; 236dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project case 'i': minPrio = ANDROID_LOG_INFO; break; 237dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project case 'w': minPrio = ANDROID_LOG_WARN; break; 238dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project case 'e': minPrio = ANDROID_LOG_ERROR; break; 239dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project case 'f': minPrio = ANDROID_LOG_FATAL; break; 240dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project case 's': minPrio = ANDROID_LOG_SILENT; break; 241dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project default: minPrio = ANDROID_LOG_DEFAULT; break; 242dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 243dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 244dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 245dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project tags++; 246dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (*tags != '\0' && !isspace(*tags)) { 247dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project TRACE("ERROR: garbage in tag env; expected whitespace\n"); 248dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project TRACE(" env='%s'\n", tags); 249dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return; 250dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 251dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 252dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 253dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (tagName[0] == 0) { 254dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project logState->globalMinPriority = minPrio; 255dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project TRACE("+++ global min prio %d\n", logState->globalMinPriority); 256dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } else { 257dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project logState->tagSet[entry].minPriority = minPrio; 258dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project strcpy(logState->tagSet[entry].tag, tagName); 259dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project TRACE("+++ entry %d: %s:%d\n", 260dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project entry, 261dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project logState->tagSet[entry].tag, 262dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project logState->tagSet[entry].minPriority); 263dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project entry++; 264dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 265dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 266dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 267dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 268dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 269dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project /* 270dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * Taken from the long-dead utils/Log.cpp 271dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project */ 272dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project const char* fstr = getenv("ANDROID_PRINTF_LOG"); 273dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project LogFormat format; 274dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (fstr == NULL) { 275dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project format = FORMAT_BRIEF; 276dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } else { 277dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (strcmp(fstr, "brief") == 0) 278dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project format = FORMAT_BRIEF; 279dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project else if (strcmp(fstr, "process") == 0) 280dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project format = FORMAT_PROCESS; 281dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project else if (strcmp(fstr, "tag") == 0) 282dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project format = FORMAT_PROCESS; 283dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project else if (strcmp(fstr, "thread") == 0) 284dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project format = FORMAT_PROCESS; 285dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project else if (strcmp(fstr, "raw") == 0) 286dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project format = FORMAT_PROCESS; 287dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project else if (strcmp(fstr, "time") == 0) 288dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project format = FORMAT_PROCESS; 289dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project else if (strcmp(fstr, "long") == 0) 290dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project format = FORMAT_PROCESS; 291dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project else 292dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project format = (LogFormat) atoi(fstr); // really?! 293dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 294dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 295dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project logState->outputFormat = format; 296dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project} 297dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 298dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project/* 299dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * Return a human-readable string for the priority level. Always returns 300dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * a valid string. 301dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project */ 302dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectstatic const char* getPriorityString(int priority) 303dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project{ 304dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project /* the first character of each string should be unique */ 305dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project static const char* priorityStrings[] = { 306dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project "Verbose", "Debug", "Info", "Warn", "Error", "Assert" 307dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project }; 308dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project int idx; 309dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 310dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project idx = (int) priority - (int) ANDROID_LOG_VERBOSE; 311dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (idx < 0 || 312dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project idx >= (int) (sizeof(priorityStrings) / sizeof(priorityStrings[0]))) 313dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return "?unknown?"; 314dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return priorityStrings[idx]; 315dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project} 316dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 317dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#ifndef HAVE_WRITEV 318dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project/* 319dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * Some platforms like WIN32 do not have writev(). 320dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * Make up something to replace it. 321dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project */ 322dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectstatic ssize_t fake_writev(int fd, const struct iovec *iov, int iovcnt) { 323dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project int result = 0; 324dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project struct iovec* end = iov + iovcnt; 325dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project for (; iov < end; iov++) { 326dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project int w = write(fd, iov->iov_base, iov->iov_len); 327dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (w != iov->iov_len) { 328dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (w < 0) 329dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return w; 330dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return result + w; 331dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 332dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project result += w; 333dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 334dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return result; 335dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project} 336dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 337dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#define writev fake_writev 338dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#endif 339dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 340dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 341dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project/* 342dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * Write a filtered log message to stderr. 343dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * 344dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * Log format parsing taken from the long-dead utils/Log.cpp. 345dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project */ 346dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectstatic void showLog(LogState *state, 347dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project int logPrio, const char* tag, const char* msg) 348dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project{ 349dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#if defined(HAVE_LOCALTIME_R) 350dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project struct tm tmBuf; 351dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#endif 352dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project struct tm* ptm; 353dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project char timeBuf[32]; 354dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project char prefixBuf[128], suffixBuf[128]; 355dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project char priChar; 356dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project time_t when; 357dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project pid_t pid, tid; 358dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 359dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project TRACE("LOG %d: %s %s", logPrio, tag, msg); 360dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 361dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project priChar = getPriorityString(logPrio)[0]; 362dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project when = time(NULL); 363dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project pid = tid = getpid(); // find gettid()? 364dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 365dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project /* 366dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * Get the current date/time in pretty form 367dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * 368dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * It's often useful when examining a log with "less" to jump to 369dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * a specific point in the file by searching for the date/time stamp. 370dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * For this reason it's very annoying to have regexp meta characters 371dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * in the time stamp. Don't use forward slashes, parenthesis, 372dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * brackets, asterisks, or other special chars here. 373dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project */ 374dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#if defined(HAVE_LOCALTIME_R) 375dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project ptm = localtime_r(&when, &tmBuf); 376dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#else 377dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project ptm = localtime(&when); 378dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#endif 379dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project //strftime(timeBuf, sizeof(timeBuf), "%Y-%m-%d %H:%M:%S", ptm); 380dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project strftime(timeBuf, sizeof(timeBuf), "%m-%d %H:%M:%S", ptm); 381dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 382dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project /* 383dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * Construct a buffer containing the log header and log message. 384dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project */ 385dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project size_t prefixLen, suffixLen; 386dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 387dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project switch (state->outputFormat) { 388dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project case FORMAT_TAG: 389dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project prefixLen = snprintf(prefixBuf, sizeof(prefixBuf), 390dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project "%c/%-8s: ", priChar, tag); 391dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project strcpy(suffixBuf, "\n"); suffixLen = 1; 392dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project break; 393dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project case FORMAT_PROCESS: 394dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project prefixLen = snprintf(prefixBuf, sizeof(prefixBuf), 395dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project "%c(%5d) ", priChar, pid); 396dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project suffixLen = snprintf(suffixBuf, sizeof(suffixBuf), 397dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project " (%s)\n", tag); 398dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project break; 399dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project case FORMAT_THREAD: 400dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project prefixLen = snprintf(prefixBuf, sizeof(prefixBuf), 401dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project "%c(%5d:%p) ", priChar, pid, (void*)tid); 402dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project strcpy(suffixBuf, "\n"); suffixLen = 1; 403dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project break; 404dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project case FORMAT_RAW: 405dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project prefixBuf[0] = 0; prefixLen = 0; 406dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project strcpy(suffixBuf, "\n"); suffixLen = 1; 407dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project break; 408dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project case FORMAT_TIME: 409dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project prefixLen = snprintf(prefixBuf, sizeof(prefixBuf), 410dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project "%s %-8s\n\t", timeBuf, tag); 411dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project strcpy(suffixBuf, "\n"); suffixLen = 1; 412dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project break; 413dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project case FORMAT_THREADTIME: 414dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project prefixLen = snprintf(prefixBuf, sizeof(prefixBuf), 415dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project "%s %5d %5d %c %-8s \n\t", timeBuf, pid, tid, priChar, tag); 416dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project strcpy(suffixBuf, "\n"); suffixLen = 1; 417dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project break; 418dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project case FORMAT_LONG: 419dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project prefixLen = snprintf(prefixBuf, sizeof(prefixBuf), 420dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project "[ %s %5d:%p %c/%-8s ]\n", 421dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project timeBuf, pid, (void*)tid, priChar, tag); 422dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project strcpy(suffixBuf, "\n\n"); suffixLen = 2; 423dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project break; 424dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project default: 425dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project prefixLen = snprintf(prefixBuf, sizeof(prefixBuf), 426dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project "%c/%-8s(%5d): ", priChar, tag, pid); 427dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project strcpy(suffixBuf, "\n"); suffixLen = 1; 428dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project break; 429dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 430dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 431dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project /* 432dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * Figure out how many lines there will be. 433dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project */ 434dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project const char* end = msg + strlen(msg); 435dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project size_t numLines = 0; 436dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project const char* p = msg; 437dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project while (p < end) { 438dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (*p++ == '\n') numLines++; 439dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 440dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (p > msg && *(p-1) != '\n') numLines++; 441dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 442dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project /* 443dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * Create an array of iovecs large enough to write all of 444dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * the lines with a prefix and a suffix. 445dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project */ 446dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project const size_t INLINE_VECS = 6; 447dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project const size_t MAX_LINES = ((size_t)~0)/(3*sizeof(struct iovec*)); 448dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project struct iovec stackVec[INLINE_VECS]; 449dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project struct iovec* vec = stackVec; 450dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project size_t numVecs; 451dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 452dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (numLines > MAX_LINES) 453dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project numLines = MAX_LINES; 454dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 455dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project numVecs = numLines*3; // 3 iovecs per line. 456dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (numVecs > INLINE_VECS) { 4570c0f68e8ff9fb88eaae614d1da316f0037484886Carl Shapiro vec = (struct iovec*)malloc(sizeof(struct iovec)*numVecs); 458dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (vec == NULL) { 459dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project msg = "LOG: write failed, no memory"; 460dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project numVecs = 3; 461dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project numLines = 1; 462dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project vec = stackVec; 463dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 464dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 465dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 466dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project /* 467dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * Fill in the iovec pointers. 468dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project */ 469dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project p = msg; 470dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project struct iovec* v = vec; 471dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project int totalLen = 0; 472dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project while (numLines > 0 && p < end) { 473dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (prefixLen > 0) { 474dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project v->iov_base = prefixBuf; 475dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project v->iov_len = prefixLen; 476dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project totalLen += prefixLen; 477dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project v++; 478dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 479dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project const char* start = p; 480dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project while (p < end && *p != '\n') p++; 481dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if ((p-start) > 0) { 482dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project v->iov_base = (void*)start; 483dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project v->iov_len = p-start; 484dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project totalLen += p-start; 485dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project v++; 486dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 487dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (*p == '\n') p++; 488dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (suffixLen > 0) { 489dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project v->iov_base = suffixBuf; 490dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project v->iov_len = suffixLen; 491dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project totalLen += suffixLen; 492dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project v++; 493dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 494dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project numLines -= 1; 495dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 496dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 497dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project /* 498dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * Write the entire message to the log file with a single writev() call. 499dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * We need to use this rather than a collection of printf()s on a FILE* 500dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * because of multi-threading and multi-process issues. 501dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * 502dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * If the file was not opened with O_APPEND, this will produce interleaved 503dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * output when called on the same file from multiple processes. 504dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * 505dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * If the file descriptor is actually a network socket, the writev() 506dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * call may return with a partial write. Putting the writev() call in 507dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * a loop can result in interleaved data. This can be alleviated 508dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * somewhat by wrapping the writev call in the Mutex. 509dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project */ 510dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 511dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project for(;;) { 512dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project int cc = writev(fileno(stderr), vec, v-vec); 513dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 514dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (cc == totalLen) break; 515dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 516dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (cc < 0) { 517dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if(errno == EINTR) continue; 518dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 519dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project /* can't really log the failure; for now, throw out a stderr */ 520dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project fprintf(stderr, "+++ LOG: write failed (errno=%d)\n", errno); 521dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project break; 522dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } else { 523dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project /* shouldn't happen when writing to file or tty */ 524dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project fprintf(stderr, "+++ LOG: write partial (%d of %d)\n", cc, totalLen); 525dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project break; 526dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 527dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 528dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 529dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project /* if we allocated storage for the iovecs, free it */ 530dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (vec != stackVec) 531dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project free(vec); 532dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project} 533dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 534dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 535dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project/* 536dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * Receive a log message. We happen to know that "vector" has three parts: 537dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * 538dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * priority (1 byte) 539dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * tag (N bytes -- null-terminated ASCII string) 540dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * message (N bytes -- null-terminated ASCII string) 541dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project */ 542dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectstatic ssize_t logWritev(int fd, const struct iovec* vector, int count) 543dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project{ 544dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project LogState* state; 545dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 546dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project /* Make sure that no-one frees the LogState while we're using it. 547dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * Also guarantees that only one thread is in showLog() at a given 548dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * time (if it matters). 549dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project */ 550dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project lock(); 551dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 552dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project state = fdToLogState(fd); 553dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (state == NULL) { 554dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project errno = EBADF; 555dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project goto error; 556dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 557dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 558dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (state->isBinary) { 559dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project TRACE("%s: ignoring binary log\n", state->debugName); 560dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project goto bail; 561dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 562dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 563dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (count != 3) { 564dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project TRACE("%s: writevLog with count=%d not expected\n", 565dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project state->debugName, count); 566dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project goto error; 567dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 568dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 569dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project /* pull out the three fields */ 570dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project int logPrio = *(const char*)vector[0].iov_base; 571dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project const char* tag = (const char*) vector[1].iov_base; 572dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project const char* msg = (const char*) vector[2].iov_base; 573dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 574dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project /* see if this log tag is configured */ 575dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project int i; 576dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project int minPrio = state->globalMinPriority; 577dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project for (i = 0; i < kTagSetSize; i++) { 578dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (state->tagSet[i].minPriority == ANDROID_LOG_UNKNOWN) 579dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project break; /* reached end of configured values */ 580dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 581dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (strcmp(state->tagSet[i].tag, tag) == 0) { 582dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project //TRACE("MATCH tag '%s'\n", tag); 583dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project minPrio = state->tagSet[i].minPriority; 584dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project break; 585dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 586dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 587dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 588dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (logPrio >= minPrio) { 589dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project showLog(state, logPrio, tag, msg); 590dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } else { 591dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project //TRACE("+++ NOLOG(%d): %s %s", logPrio, tag, msg); 592dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 593dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 594dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectbail: 595dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project unlock(); 596dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return vector[0].iov_len + vector[1].iov_len + vector[2].iov_len; 597dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projecterror: 598dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project unlock(); 599dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return -1; 600dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project} 601dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 602dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project/* 603dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * Free up our state and close the fake descriptor. 604dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project */ 605dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectstatic int logClose(int fd) 606dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project{ 607dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project deleteFakeFd(fd); 608dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return 0; 609dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project} 610dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 611dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project/* 612dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * Open a log output device and return a fake fd. 613dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project */ 614dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectstatic int logOpen(const char* pathName, int flags) 615dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project{ 616dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project LogState *logState; 617dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project int fd = -1; 618dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 619dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project lock(); 620dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 621dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project logState = createLogState(); 622dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (logState != NULL) { 623dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project configureInitialState(pathName, logState); 624dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project fd = logState->fakeFd; 625dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } else { 626dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project errno = ENFILE; 627dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 628dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 629dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project unlock(); 630dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 631dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return fd; 632dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project} 633dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 634dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 635dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project/* 636dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * Runtime redirection. If this binary is running in the simulator, 637dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * just pass log messages to the emulated device. If it's running 638dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * outside of the simulator, write the log messages to stderr. 639dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project */ 640dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 641dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectstatic int (*redirectOpen)(const char *pathName, int flags) = NULL; 642dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectstatic int (*redirectClose)(int fd) = NULL; 643dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectstatic ssize_t (*redirectWritev)(int fd, const struct iovec* vector, int count) 644dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project = NULL; 645dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 646dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectstatic void setRedirects() 647dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project{ 648dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project const char *ws; 649dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 650dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project /* Wrapsim sets this environment variable on children that it's 651dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * created using its LD_PRELOAD wrapper. 652dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project */ 653dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project ws = getenv("ANDROID_WRAPSIM"); 654dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (ws != NULL && strcmp(ws, "1") == 0) { 655dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project /* We're running inside wrapsim, so we can just write to the device. */ 656dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project redirectOpen = (int (*)(const char *pathName, int flags))open; 657dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project redirectClose = close; 658dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project redirectWritev = writev; 659dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } else { 660dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project /* There's no device to delegate to; handle the logging ourselves. */ 661dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project redirectOpen = logOpen; 662dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project redirectClose = logClose; 663dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project redirectWritev = logWritev; 664dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 665dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project} 666dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 667dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectint fakeLogOpen(const char *pathName, int flags) 668dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project{ 669dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (redirectOpen == NULL) { 670dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project setRedirects(); 671dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 672dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return redirectOpen(pathName, flags); 673dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project} 674dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 675dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectint fakeLogClose(int fd) 676dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project{ 677dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project /* Assume that open() was called first. */ 678dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return redirectClose(fd); 679dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project} 680dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 681dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectssize_t fakeLogWritev(int fd, const struct iovec* vector, int count) 682dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project{ 683dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project /* Assume that open() was called first. */ 684dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return redirectWritev(fd, vector, count); 685dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project} 686