mirror of https://github.com/facebook/rocksdb.git
68 lines
1.9 KiB
C++
68 lines
1.9 KiB
C++
// Copyright (c) 2014, Facebook, Inc. All rights reserved.
|
|
// This source code is licensed under the BSD-style license found in the
|
|
// LICENSE file in the root directory of this source tree. An additional grant
|
|
// of patent rights can be found in the PATENTS file in the same directory.
|
|
|
|
#include "util/log_buffer.h"
|
|
|
|
#include <sys/time.h>
|
|
|
|
namespace rocksdb {
|
|
|
|
LogBuffer::LogBuffer(const InfoLogLevel log_level,
|
|
Logger*info_log)
|
|
: log_level_(log_level), info_log_(info_log) {}
|
|
|
|
void LogBuffer::AddLogToBuffer(const char* format, va_list ap) {
|
|
if (!info_log_ || log_level_ < info_log_->GetInfoLogLevel()) {
|
|
// Skip the level because of its level.
|
|
return;
|
|
}
|
|
|
|
const size_t kLogSizeLimit = 512;
|
|
char* alloc_mem = arena_.AllocateAligned(kLogSizeLimit);
|
|
BufferedLog* buffered_log = new (alloc_mem) BufferedLog();
|
|
char* p = buffered_log->message;
|
|
char* limit = alloc_mem + kLogSizeLimit - 1;
|
|
|
|
// store the time
|
|
gettimeofday(&(buffered_log->now_tv), nullptr);
|
|
|
|
// Print the message
|
|
if (p < limit) {
|
|
va_list backup_ap;
|
|
va_copy(backup_ap, ap);
|
|
p += vsnprintf(p, limit - p, format, backup_ap);
|
|
va_end(backup_ap);
|
|
}
|
|
|
|
// Add '\0' to the end
|
|
*p = '\0';
|
|
|
|
logs_.push_back(buffered_log);
|
|
}
|
|
|
|
void LogBuffer::FlushBufferToLog() {
|
|
for (BufferedLog* log : logs_) {
|
|
const time_t seconds = log->now_tv.tv_sec;
|
|
struct tm t;
|
|
localtime_r(&seconds, &t);
|
|
Log(log_level_, info_log_,
|
|
"(Original Log Time %04d/%02d/%02d-%02d:%02d:%02d.%06d) %s",
|
|
t.tm_year + 1900, t.tm_mon + 1, t.tm_mday, t.tm_hour, t.tm_min,
|
|
t.tm_sec, static_cast<int>(log->now_tv.tv_usec), log->message);
|
|
}
|
|
logs_.clear();
|
|
}
|
|
|
|
void LogToBuffer(LogBuffer* log_buffer, const char* format, ...) {
|
|
if (log_buffer != nullptr) {
|
|
va_list ap;
|
|
va_start(ap, format);
|
|
log_buffer->AddLogToBuffer(format, ap);
|
|
va_end(ap);
|
|
}
|
|
}
|
|
|
|
} // namespace rocksdb
|