93 lines
2.4 KiB
C++
93 lines
2.4 KiB
C++
//
|
|
// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2018
|
|
//
|
|
// Distributed under the Boost Software License, Version 1.0. (See accompanying
|
|
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
|
|
//
|
|
#include "td/utils/FileLog.h"
|
|
|
|
#include "td/utils/common.h"
|
|
#include "td/utils/logging.h"
|
|
#include "td/utils/port/Fd.h"
|
|
#include "td/utils/port/FileFd.h"
|
|
#include "td/utils/port/path.h"
|
|
#include "td/utils/Slice.h"
|
|
|
|
#include <limits>
|
|
|
|
namespace td {
|
|
|
|
bool FileLog::init(string path, int64 rotate_threshold) {
|
|
if (path == path_) {
|
|
set_rotate_threshold(rotate_threshold);
|
|
return true;
|
|
}
|
|
|
|
auto r_fd = FileFd::open(path, FileFd::Create | FileFd::Write | FileFd::Append);
|
|
if (r_fd.is_error()) {
|
|
LOG(ERROR) << "Can't open log: " << r_fd.error();
|
|
return false;
|
|
}
|
|
|
|
fd_.close();
|
|
fd_ = r_fd.move_as_ok();
|
|
Fd::duplicate(fd_.get_fd(), Fd::Stderr()).ignore();
|
|
|
|
path_ = std::move(path);
|
|
size_ = fd_.get_size();
|
|
rotate_threshold_ = rotate_threshold;
|
|
return true;
|
|
}
|
|
|
|
void FileLog::set_rotate_threshold(int64 rotate_threshold) {
|
|
rotate_threshold_ = rotate_threshold;
|
|
}
|
|
|
|
void FileLog::append(CSlice cslice, int log_level) {
|
|
Slice slice = cslice;
|
|
while (!slice.empty()) {
|
|
auto r_size = fd_.write(slice);
|
|
if (r_size.is_error()) {
|
|
process_fatal_error(r_size.error().message());
|
|
}
|
|
auto written = r_size.ok();
|
|
size_ += static_cast<int64>(written);
|
|
slice.remove_prefix(written);
|
|
}
|
|
if (log_level == VERBOSITY_NAME(FATAL)) {
|
|
process_fatal_error(cslice);
|
|
}
|
|
|
|
if (size_ > rotate_threshold_) {
|
|
auto status = rename(path_, PSLICE() << path_ << ".old");
|
|
if (status.is_error()) {
|
|
process_fatal_error(status.message());
|
|
}
|
|
do_rotate();
|
|
}
|
|
}
|
|
|
|
void FileLog::rotate() {
|
|
if (path_.empty()) {
|
|
return;
|
|
}
|
|
do_rotate();
|
|
}
|
|
|
|
void FileLog::do_rotate() {
|
|
auto current_verbosity_level = GET_VERBOSITY_LEVEL();
|
|
SET_VERBOSITY_LEVEL(std::numeric_limits<int>::min()); // to ensure that nothing will be printed to the closed log
|
|
CHECK(!path_.empty());
|
|
fd_.close();
|
|
auto r_fd = FileFd::open(path_, FileFd::Create | FileFd::Truncate | FileFd::Write);
|
|
if (r_fd.is_error()) {
|
|
process_fatal_error(r_fd.error().message());
|
|
}
|
|
fd_ = r_fd.move_as_ok();
|
|
Fd::duplicate(fd_.get_fd(), Fd::Stderr()).ignore();
|
|
size_ = 0;
|
|
SET_VERBOSITY_LEVEL(current_verbosity_level);
|
|
}
|
|
|
|
} // namespace td
|