blob: 5f6aca02953bf27bac5b9b2098a2d69bc982f8b6 [file] [log] [blame]
/*
* Copyright (C) 2016 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "BufLog.h"
#define LOG_TAG "BufLog"
//#define LOG_NDEBUG 0
#include <errno.h>
#include "log/log.h"
#include <pthread.h>
#include <stdio.h>
#include <string.h>
#include <audio_utils/string.h>
#define MIN(a, b) ((a) < (b) ? (a) : (b))
// ------------------------------
// BufLogSingleton
// ------------------------------
pthread_once_t onceControl = PTHREAD_ONCE_INIT;
BufLog *BufLogSingleton::mInstance = NULL;
void BufLogSingleton::initOnce() {
mInstance = new BufLog();
ALOGW("=====================================\n" \
"Warning: BUFLOG is defined in some part of your code.\n" \
"This will create large audio dumps in %s.\n" \
"=====================================\n", BUFLOG_BASE_PATH);
}
BufLog *BufLogSingleton::instance() {
pthread_once(&onceControl, initOnce);
return mInstance;
}
bool BufLogSingleton::instanceExists() {
return mInstance != NULL;
}
// ------------------------------
// BufLog
// ------------------------------
BufLog::BufLog() {
memset(mStreams, 0, sizeof(mStreams));
}
BufLog::~BufLog() {
android::Mutex::Autolock autoLock(mLock);
for (unsigned int id = 0; id < BUFLOG_MAXSTREAMS; id++) {
BufLogStream *pBLStream = mStreams[id];
if (pBLStream != NULL) {
delete pBLStream ;
mStreams[id] = NULL;
}
}
}
size_t BufLog::write(int streamid, const char *tag, int format, int channels,
int samplingRate, size_t maxBytes, const void *buf, size_t size) {
unsigned int id = streamid % BUFLOG_MAXSTREAMS;
android::Mutex::Autolock autoLock(mLock);
BufLogStream *pBLStream = mStreams[id];
if (pBLStream == NULL) {
pBLStream = mStreams[id] = new BufLogStream(id, tag, format, channels,
samplingRate, maxBytes);
ALOG_ASSERT(pBLStream != NULL, "BufLogStream Failed to be created");
}
return pBLStream->write(buf, size);
}
void BufLog::reset() {
android::Mutex::Autolock autoLock(mLock);
ALOGV("Resetting all BufLogs");
int count = 0;
for (unsigned int id = 0; id < BUFLOG_MAXSTREAMS; id++) {
BufLogStream *pBLStream = mStreams[id];
if (pBLStream != NULL) {
delete pBLStream;
mStreams[id] = NULL;
count++;
}
}
ALOGV("Reset %d BufLogs", count);
}
// ------------------------------
// BufLogStream
// ------------------------------
BufLogStream::BufLogStream(unsigned int id,
const char *tag,
unsigned int format,
unsigned int channels,
unsigned int samplingRate,
size_t maxBytes = 0) : mId(id), mFormat(format), mChannels(channels),
mSamplingRate(samplingRate), mMaxBytes(maxBytes) {
mByteCount = 0;
mPaused = false;
if (tag != NULL) {
(void)audio_utils_strlcpy(mTag, tag);
} else {
mTag[0] = 0;
}
ALOGV("Creating BufLogStream id:%d tag:%s format:%#x ch:%d sr:%d maxbytes:%zu", mId, mTag,
mFormat, mChannels, mSamplingRate, mMaxBytes);
//open file (s), info about tag, format, etc.
//timestamp
char timeStr[16]; //size 16: format %Y%m%d%H%M%S 14 chars + string null terminator
struct timeval tv;
gettimeofday(&tv, NULL);
struct tm tm;
localtime_r(&tv.tv_sec, &tm);
strftime(timeStr, sizeof(timeStr), "%Y%m%d%H%M%S", &tm);
char logPath[BUFLOG_MAX_PATH_SIZE];
snprintf(logPath, BUFLOG_MAX_PATH_SIZE, "%s/%s_%d_%s_%d_%d_%d.raw", BUFLOG_BASE_PATH, timeStr,
mId, mTag, mFormat, mChannels, mSamplingRate);
ALOGV("data output: %s", logPath);
mFile = fopen(logPath, "wb");
if (mFile != NULL) {
ALOGV("Success creating file at: %p", mFile);
} else {
ALOGE("Error: could not create file BufLogStream %s", strerror(errno));
}
}
void BufLogStream::closeStream_l() {
ALOGV("Closing BufLogStream id:%d tag:%s", mId, mTag);
if (mFile != NULL) {
fclose(mFile);
mFile = NULL;
}
}
BufLogStream::~BufLogStream() {
ALOGV("Destroying BufLogStream id:%d tag:%s", mId, mTag);
android::Mutex::Autolock autoLock(mLock);
closeStream_l();
}
size_t BufLogStream::write(const void *buf, size_t size) {
size_t bytes = 0;
if (!mPaused && mFile != NULL) {
if (size > 0 && buf != NULL) {
android::Mutex::Autolock autoLock(mLock);
if (mMaxBytes > 0) {
size = MIN(size, mMaxBytes - mByteCount);
}
bytes = fwrite(buf, 1, size, mFile);
mByteCount += bytes;
if (mMaxBytes > 0 && mMaxBytes == mByteCount) {
closeStream_l();
}
}
ALOGV("wrote %zu/%zu bytes to BufLogStream %d tag:%s. Total Bytes: %zu", bytes, size, mId,
mTag, mByteCount);
} else {
ALOGV("Warning: trying to write to %s BufLogStream id:%d tag:%s",
mPaused ? "paused" : "closed", mId, mTag);
}
return bytes;
}
bool BufLogStream::setPause(bool pause) {
bool old = mPaused;
mPaused = pause;
return old;
}
void BufLogStream::finalize() {
android::Mutex::Autolock autoLock(mLock);
closeStream_l();
}