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/*
* Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#include "webrtc/system_wrappers/source/trace_impl.h"
#include <assert.h>
#include <stdarg.h>
#include <stdio.h>
#include <string.h>
#include "webrtc/base/atomicops.h"
#include "webrtc/base/platform_thread.h"
#ifdef _WIN32
#include "webrtc/system_wrappers/source/trace_win.h"
#else
#include "webrtc/system_wrappers/source/trace_posix.h"
#endif // _WIN32
#define KEY_LEN_CHARS 31
#ifdef _WIN32
#pragma warning(disable:4355)
#endif // _WIN32
namespace webrtc {
const int Trace::kBoilerplateLength = 71;
const int Trace::kTimestampPosition = 13;
const int Trace::kTimestampLength = 12;
volatile int Trace::level_filter_ = kTraceDefault;
// Construct On First Use idiom. Avoids "static initialization order fiasco".
TraceImpl* TraceImpl::StaticInstance(CountOperation count_operation,
const TraceLevel level) {
// Sanities to avoid taking lock unless absolutely necessary (for
// performance reasons). count_operation == kAddRefNoCreate implies that a
// message will be written to file.
if ((level != kTraceAll) && (count_operation == kAddRefNoCreate)) {
if (!(level & level_filter())) {
return NULL;
}
}
TraceImpl* impl =
GetStaticInstance<TraceImpl>(count_operation);
return impl;
}
TraceImpl* TraceImpl::GetTrace(const TraceLevel level) {
return StaticInstance(kAddRefNoCreate, level);
}
TraceImpl* TraceImpl::CreateInstance() {
#if defined(_WIN32)
return new TraceWindows();
#else
return new TracePosix();
#endif
}
TraceImpl::TraceImpl()
: callback_(NULL),
row_count_text_(0),
file_count_text_(0),
trace_file_(FileWrapper::Create()) {
}
TraceImpl::~TraceImpl() {
trace_file_->CloseFile();
}
int32_t TraceImpl::AddThreadId(char* trace_message) const {
uint32_t thread_id = rtc::CurrentThreadId();
// Messages is 12 characters.
return sprintf(trace_message, "%10u; ", thread_id);
}
int32_t TraceImpl::AddLevel(char* sz_message, const TraceLevel level) const {
const int kMessageLength = 12;
switch (level) {
case kTraceTerseInfo:
// Add the appropriate amount of whitespace.
memset(sz_message, ' ', kMessageLength);
sz_message[kMessageLength] = '\0';
break;
case kTraceStateInfo:
sprintf(sz_message, "STATEINFO ; ");
break;
case kTraceWarning:
sprintf(sz_message, "WARNING ; ");
break;
case kTraceError:
sprintf(sz_message, "ERROR ; ");
break;
case kTraceCritical:
sprintf(sz_message, "CRITICAL ; ");
break;
case kTraceInfo:
sprintf(sz_message, "DEBUGINFO ; ");
break;
case kTraceModuleCall:
sprintf(sz_message, "MODULECALL; ");
break;
case kTraceMemory:
sprintf(sz_message, "MEMORY ; ");
break;
case kTraceTimer:
sprintf(sz_message, "TIMER ; ");
break;
case kTraceStream:
sprintf(sz_message, "STREAM ; ");
break;
case kTraceApiCall:
sprintf(sz_message, "APICALL ; ");
break;
case kTraceDebug:
sprintf(sz_message, "DEBUG ; ");
break;
default:
assert(false);
return 0;
}
// All messages are 12 characters.
return kMessageLength;
}
int32_t TraceImpl::AddModuleAndId(char* trace_message,
const TraceModule module,
const int32_t id) const {
// Use long int to prevent problems with different definitions of
// int32_t.
// TODO(hellner): is this actually a problem? If so, it should be better to
// clean up int32_t
const long int idl = id;
const int kMessageLength = 25;
if (idl != -1) {
const unsigned long int id_engine = id >> 16;
const unsigned long int id_channel = id & 0xffff;
switch (module) {
case kTraceUndefined:
// Add the appropriate amount of whitespace.
memset(trace_message, ' ', kMessageLength);
trace_message[kMessageLength] = '\0';
break;
case kTraceVoice:
sprintf(trace_message, " VOICE:%5ld %5ld;", id_engine,
id_channel);
break;
case kTraceVideo:
sprintf(trace_message, " VIDEO:%5ld %5ld;", id_engine,
id_channel);
break;
case kTraceUtility:
sprintf(trace_message, " UTILITY:%5ld %5ld;", id_engine,
id_channel);
break;
case kTraceRtpRtcp:
sprintf(trace_message, " RTP/RTCP:%5ld %5ld;", id_engine,
id_channel);
break;
case kTraceTransport:
sprintf(trace_message, " TRANSPORT:%5ld %5ld;", id_engine,
id_channel);
break;
case kTraceAudioCoding:
sprintf(trace_message, "AUDIO CODING:%5ld %5ld;", id_engine,
id_channel);
break;
case kTraceSrtp:
sprintf(trace_message, " SRTP:%5ld %5ld;", id_engine,
id_channel);
break;
case kTraceAudioMixerServer:
sprintf(trace_message, " AUDIO MIX/S:%5ld %5ld;", id_engine,
id_channel);
break;
case kTraceAudioMixerClient:
sprintf(trace_message, " AUDIO MIX/C:%5ld %5ld;", id_engine,
id_channel);
break;
case kTraceVideoCoding:
sprintf(trace_message, "VIDEO CODING:%5ld %5ld;", id_engine,
id_channel);
break;
case kTraceVideoMixer:
// Print sleep time and API call
sprintf(trace_message, " VIDEO MIX:%5ld %5ld;", id_engine,
id_channel);
break;
case kTraceFile:
sprintf(trace_message, " FILE:%5ld %5ld;", id_engine,
id_channel);
break;
case kTraceAudioProcessing:
sprintf(trace_message, " AUDIO PROC:%5ld %5ld;", id_engine,
id_channel);
break;
case kTraceAudioDevice:
sprintf(trace_message, "AUDIO DEVICE:%5ld %5ld;", id_engine,
id_channel);
break;
case kTraceVideoRenderer:
sprintf(trace_message, "VIDEO RENDER:%5ld %5ld;", id_engine,
id_channel);
break;
case kTraceVideoCapture:
sprintf(trace_message, "VIDEO CAPTUR:%5ld %5ld;", id_engine,
id_channel);
break;
case kTraceRemoteBitrateEstimator:
sprintf(trace_message, " BWE RBE:%5ld %5ld;", id_engine,
id_channel);
break;
}
} else {
switch (module) {
case kTraceUndefined:
// Add the appropriate amount of whitespace.
memset(trace_message, ' ', kMessageLength);
trace_message[kMessageLength] = '\0';
break;
case kTraceVoice:
sprintf(trace_message, " VOICE:%11ld;", idl);
break;
case kTraceVideo:
sprintf(trace_message, " VIDEO:%11ld;", idl);
break;
case kTraceUtility:
sprintf(trace_message, " UTILITY:%11ld;", idl);
break;
case kTraceRtpRtcp:
sprintf(trace_message, " RTP/RTCP:%11ld;", idl);
break;
case kTraceTransport:
sprintf(trace_message, " TRANSPORT:%11ld;", idl);
break;
case kTraceAudioCoding:
sprintf(trace_message, "AUDIO CODING:%11ld;", idl);
break;
case kTraceSrtp:
sprintf(trace_message, " SRTP:%11ld;", idl);
break;
case kTraceAudioMixerServer:
sprintf(trace_message, " AUDIO MIX/S:%11ld;", idl);
break;
case kTraceAudioMixerClient:
sprintf(trace_message, " AUDIO MIX/C:%11ld;", idl);
break;
case kTraceVideoCoding:
sprintf(trace_message, "VIDEO CODING:%11ld;", idl);
break;
case kTraceVideoMixer:
sprintf(trace_message, " VIDEO MIX:%11ld;", idl);
break;
case kTraceFile:
sprintf(trace_message, " FILE:%11ld;", idl);
break;
case kTraceAudioProcessing:
sprintf(trace_message, " AUDIO PROC:%11ld;", idl);
break;
case kTraceAudioDevice:
sprintf(trace_message, "AUDIO DEVICE:%11ld;", idl);
break;
case kTraceVideoRenderer:
sprintf(trace_message, "VIDEO RENDER:%11ld;", idl);
break;
case kTraceVideoCapture:
sprintf(trace_message, "VIDEO CAPTUR:%11ld;", idl);
break;
case kTraceRemoteBitrateEstimator:
sprintf(trace_message, " BWE RBE:%11ld;", idl);
break;
}
}
return kMessageLength;
}
int32_t TraceImpl::SetTraceFileImpl(const char* file_name_utf8,
const bool add_file_counter) {
rtc::CritScope lock(&crit_);
trace_file_->CloseFile();
trace_file_path_.clear();
if (file_name_utf8) {
if (add_file_counter) {
file_count_text_ = 1;
char file_name_with_counter_utf8[FileWrapper::kMaxFileNameSize];
CreateFileName(file_name_utf8, file_name_with_counter_utf8,
file_count_text_);
if (!trace_file_->OpenFile(file_name_with_counter_utf8, false)) {
return -1;
}
trace_file_path_ = file_name_with_counter_utf8;
} else {
file_count_text_ = 0;
if (!trace_file_->OpenFile(file_name_utf8, false)) {
return -1;
}
trace_file_path_ = file_name_utf8;
}
}
row_count_text_ = 0;
return 0;
}
int32_t TraceImpl::SetTraceCallbackImpl(TraceCallback* callback) {
rtc::CritScope lock(&crit_);
callback_ = callback;
return 0;
}
int32_t TraceImpl::AddMessage(
char* trace_message,
const char msg[WEBRTC_TRACE_MAX_MESSAGE_SIZE],
const uint16_t written_so_far) const {
int length = 0;
if (written_so_far >= WEBRTC_TRACE_MAX_MESSAGE_SIZE) {
return -1;
}
// - 2 to leave room for newline and NULL termination.
#ifdef _WIN32
length = _snprintf(trace_message,
WEBRTC_TRACE_MAX_MESSAGE_SIZE - written_so_far - 2,
"%s", msg);
if (length < 0) {
length = WEBRTC_TRACE_MAX_MESSAGE_SIZE - written_so_far - 2;
trace_message[length] = 0;
}
#else
length = snprintf(trace_message,
WEBRTC_TRACE_MAX_MESSAGE_SIZE - written_so_far - 2,
"%s", msg);
if (length < 0 ||
length > WEBRTC_TRACE_MAX_MESSAGE_SIZE - written_so_far - 2) {
length = WEBRTC_TRACE_MAX_MESSAGE_SIZE - written_so_far - 2;
trace_message[length] = 0;
}
#endif
// Length with NULL termination.
return length + 1;
}
void TraceImpl::AddMessageToList(
const char trace_message[WEBRTC_TRACE_MAX_MESSAGE_SIZE],
const uint16_t length,
const TraceLevel level) {
rtc::CritScope lock(&crit_);
if (callback_)
callback_->Print(level, trace_message, length);
WriteToFile(trace_message, length);
}
void TraceImpl::WriteToFile(const char* msg, uint16_t length) {
if (!trace_file_->is_open())
return;
if (row_count_text_ > WEBRTC_TRACE_MAX_FILE_SIZE) {
// wrap file
row_count_text_ = 0;
trace_file_->Flush();
if (file_count_text_ == 0) {
trace_file_->Rewind();
} else {
char new_file_name[FileWrapper::kMaxFileNameSize];
// get current name
file_count_text_++;
UpdateFileName(new_file_name, file_count_text_);
trace_file_->CloseFile();
trace_file_path_.clear();
if (!trace_file_->OpenFile(new_file_name, false)) {
return;
}
trace_file_path_ = new_file_name;
}
}
if (row_count_text_ == 0) {
char message[WEBRTC_TRACE_MAX_MESSAGE_SIZE + 1];
int32_t length = AddDateTimeInfo(message);
if (length != -1) {
message[length] = 0;
message[length - 1] = '\n';
trace_file_->Write(message, length);
row_count_text_++;
}
}
char trace_message[WEBRTC_TRACE_MAX_MESSAGE_SIZE];
memcpy(trace_message, msg, length);
trace_message[length] = 0;
trace_message[length - 1] = '\n';
trace_file_->Write(trace_message, length);
row_count_text_++;
}
void TraceImpl::AddImpl(const TraceLevel level,
const TraceModule module,
const int32_t id,
const char msg[WEBRTC_TRACE_MAX_MESSAGE_SIZE]) {
if (!TraceCheck(level))
return;
char trace_message[WEBRTC_TRACE_MAX_MESSAGE_SIZE];
char* message_ptr = &trace_message[0];
int32_t len = AddLevel(message_ptr, level);
if (len == -1)
return;
message_ptr += len;
int32_t ack_len = len;
len = AddTime(message_ptr, level);
if (len == -1)
return;
message_ptr += len;
ack_len += len;
len = AddModuleAndId(message_ptr, module, id);
if (len == -1)
return;
message_ptr += len;
ack_len += len;
len = AddThreadId(message_ptr);
if (len < 0)
return;
message_ptr += len;
ack_len += len;
len = AddMessage(message_ptr, msg, static_cast<uint16_t>(ack_len));
if (len == -1)
return;
ack_len += len;
AddMessageToList(trace_message, static_cast<uint16_t>(ack_len), level);
}
bool TraceImpl::TraceCheck(const TraceLevel level) const {
return (level & level_filter()) ? true : false;
}
bool TraceImpl::UpdateFileName(
char file_name_with_counter_utf8[FileWrapper::kMaxFileNameSize],
const uint32_t new_count) const {
int32_t length = static_cast<int32_t>(trace_file_path_.length());
int32_t length_without_file_ending = length - 1;
while (length_without_file_ending > 0) {
if (trace_file_path_[length_without_file_ending] == '.') {
break;
} else {
length_without_file_ending--;
}
}
if (length_without_file_ending == 0) {
length_without_file_ending = length;
}
int32_t length_to_ = length_without_file_ending - 1;
while (length_to_ > 0) {
if (trace_file_path_[length_to_] == '_') {
break;
} else {
length_to_--;
}
}
memcpy(file_name_with_counter_utf8, &trace_file_path_[0], length_to_);
sprintf(file_name_with_counter_utf8 + length_to_, "_%lu%s",
static_cast<long unsigned int>(new_count),
&trace_file_path_[length_without_file_ending]);
return true;
}
bool TraceImpl::CreateFileName(
const char file_name_utf8[FileWrapper::kMaxFileNameSize],
char file_name_with_counter_utf8[FileWrapper::kMaxFileNameSize],
const uint32_t new_count) const {
int32_t length = (int32_t)strlen(file_name_utf8);
if (length < 0) {
return false;
}
int32_t length_without_file_ending = length - 1;
while (length_without_file_ending > 0) {
if (file_name_utf8[length_without_file_ending] == '.') {
break;
} else {
length_without_file_ending--;
}
}
if (length_without_file_ending == 0) {
length_without_file_ending = length;
}
memcpy(file_name_with_counter_utf8, file_name_utf8,
length_without_file_ending);
sprintf(file_name_with_counter_utf8 + length_without_file_ending, "_%lu%s",
static_cast<long unsigned int>(new_count),
file_name_utf8 + length_without_file_ending);
return true;
}
// static
void Trace::CreateTrace() {
TraceImpl::StaticInstance(kAddRef);
}
// static
void Trace::ReturnTrace() {
TraceImpl::StaticInstance(kRelease);
}
// static
void Trace::set_level_filter(int filter) {
rtc::AtomicOps::ReleaseStore(&level_filter_, filter);
}
// static
int Trace::level_filter() {
return rtc::AtomicOps::AcquireLoad(&level_filter_);
}
// static
int32_t Trace::SetTraceFile(const char* file_name,
const bool add_file_counter) {
TraceImpl* trace = TraceImpl::GetTrace();
if (trace) {
int ret_val = trace->SetTraceFileImpl(file_name, add_file_counter);
ReturnTrace();
return ret_val;
}
return -1;
}
int32_t Trace::SetTraceCallback(TraceCallback* callback) {
TraceImpl* trace = TraceImpl::GetTrace();
if (trace) {
int ret_val = trace->SetTraceCallbackImpl(callback);
ReturnTrace();
return ret_val;
}
return -1;
}
void Trace::Add(const TraceLevel level, const TraceModule module,
const int32_t id, const char* msg, ...) {
TraceImpl* trace = TraceImpl::GetTrace(level);
if (trace) {
if (trace->TraceCheck(level)) {
char temp_buff[WEBRTC_TRACE_MAX_MESSAGE_SIZE];
char* buff = 0;
if (msg) {
va_list args;
va_start(args, msg);
#ifdef _WIN32
_vsnprintf(temp_buff, WEBRTC_TRACE_MAX_MESSAGE_SIZE - 1, msg, args);
#else
vsnprintf(temp_buff, WEBRTC_TRACE_MAX_MESSAGE_SIZE - 1, msg, args);
#endif
va_end(args);
buff = temp_buff;
}
trace->AddImpl(level, module, id, buff);
}
ReturnTrace();
}
}
} // namespace webrtc