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- /**
- * Tencent is pleased to support the open source community by making Tars available.
- *
- * Copyright (C) 2016THL A29 Limited, a Tencent company. All rights reserved.
- *
- * Licensed under the BSD 3-Clause License (the "License"); you may not use this file except
- * in compliance with the License. You may obtain a copy of the License at
- *
- * https://opensource.org/licenses/BSD-3-Clause
- *
- * 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 "util/tc_logger.h"
- #include <iostream>
- #include <string.h>
- #include <mutex>
- namespace tars
- {
- bool TC_LoggerRoll::_bDyeingFlag = false;
- TC_SpinLock TC_LoggerRoll::_mutexDyeing;
- unordered_map<size_t, string> TC_LoggerRoll::_mapThreadID;
- const string LogByDay::FORMAT = "%Y%m%d";
- const string LogByHour::FORMAT = "%Y%m%d%H";
- const string LogByMinute::FORMAT = "%Y%m%d%H%M";
- void TC_LoggerRoll::setupThread(TC_LoggerThreadGroup *pThreadGroup)
- {
- assert(pThreadGroup != NULL);
- unSetupThread();
- std::lock_guard<std::mutex> lock(_mutex);
- _pThreadGroup = pThreadGroup;
- TC_LoggerRollPtr self = this;
- _pThreadGroup->registerLogger(self);
- }
- void TC_LoggerRoll::unSetupThread()
- {
- std::lock_guard<std::mutex> lock(_mutex);
- if (_pThreadGroup != NULL)
- {
- _pThreadGroup->flush();
- TC_LoggerRollPtr self = this;
- _pThreadGroup->unRegisterLogger(self);
- _pThreadGroup = NULL;
- }
- flush();
- }
- void TC_LoggerRoll::write(const pair<std::size_t, string> &buffer)
- {
- size_t ThreadID = 0;
- if (_bDyeingFlag)
- {
- TC_LockT<TC_SpinLock> lock(_mutexDyeing);
- if (_mapThreadID.find(TC_Thread::CURRENT_THREADID()) != _mapThreadID.end())
- {
- ThreadID = TC_Thread::CURRENT_THREADID();
- }
- }
- if (_pThreadGroup)
- {
- _buffer.push_back(make_pair(ThreadID, buffer.second));
- }
- else
- {
- //同步记录日志
- deque<pair<size_t, string> > ds;
- ds.push_back(make_pair(ThreadID, buffer.second));
- roll(ds);
- }
- }
- void TC_LoggerRoll::flush()
- {
- TC_CasQueue<pair<size_t, string> >::queue_type qt;
- _buffer.swap(qt);
- if (!qt.empty())
- {
- roll(qt);
- }
- }
- //////////////////////////////////////////////////////////////////
- //
- TC_LoggerThreadGroup::TC_LoggerThreadGroup() : _bTerminate(false), _thread(NULL)
- {
- }
- TC_LoggerThreadGroup::~TC_LoggerThreadGroup()
- {
- terminate();
- /*挪到terminate函数中
- flush();
- {
- std::lock_guard<std::mutex> guard(_mutex);
- _bTerminate = true;
- _cond.notify_all();
- }
- if(_thread)
- {
- _thread->join();
- delete _thread;
- _thread = NULL;
- }
- */
- }
- void TC_LoggerThreadGroup::start(size_t iThreadNum)
- {
- if(_thread == NULL)
- {
- _thread = new std::thread(&TC_LoggerThreadGroup::run, this);
- }
- }
- void TC_LoggerThreadGroup::registerLogger(TC_LoggerRollPtr &l)
- {
- std::lock_guard<std::mutex> lock(_mutex);
- _logger.insert(l);
- }
- void TC_LoggerThreadGroup::unRegisterLogger(TC_LoggerRollPtr &l)
- {
- std::lock_guard<std::mutex> lock(_mutex);
- _logger.erase(l);
- }
- void TC_LoggerThreadGroup::terminate()
- {
- if (_bTerminate)
- return;
- flush();
- {
- std::unique_lock<std::mutex> lock(_mutex);
- _bTerminate = true;
- _cond.notify_all();
- }
- if (_thread)
- {
- _thread->join();
- delete _thread;
- _thread = NULL;
- }
- }
- void TC_LoggerThreadGroup::flush()
- {
- logger_set logger;
- {
- std::lock_guard<std::mutex> lock(_mutex);
- logger = _logger;
- }
- logger_set::iterator it = logger.begin();
- while (it != logger.end())
- {
- try
- {
- it->get()->flush();
- }
- catch(exception &ex)
- {
- cerr << "[TC_LoggerThreadGroup::flush] log flush error:" << ex.what() << endl;
- }
- catch (...)
- {
- }
- ++it;
- }
- }
- void TC_LoggerThreadGroup::run()
- {
- while (!_bTerminate)
- {
- //100ms
- {
- std::unique_lock<std::mutex> lock(_mutex);
- _cond.wait_for(lock, std::chrono::milliseconds(100));
- }
- flush();
- }
- }
- //////////////////////////////////////////////////////////////////////////////////
- LoggerBuffer::LoggerBuffer() : _buffer(NULL), _buffer_len(0)
- {
- }
- LoggerBuffer::LoggerBuffer(TC_LoggerRollPtr roll, size_t buffer_len) : _roll(roll), _buffer(NULL), _buffer_len(buffer_len)
- {
- //设置get buffer, 无效, 不适用
- setg(NULL, NULL, NULL);
- //设置put buffer
- if (_roll)
- {
- //分配空间
- _buffer = new char[_buffer_len];
- setp(_buffer, _buffer + _buffer_len);
- }
- else
- {
- setp(NULL, NULL);
- _buffer_len = 0;
- }
- }
- LoggerBuffer::~LoggerBuffer()
- {
- sync();
- if (_buffer)
- {
- delete[] _buffer;
- }
- }
- streamsize LoggerBuffer::xsputn(const char_type* s, streamsize n)
- {
- if (!_roll)
- {
- return n;
- }
- return std::basic_streambuf<char>::xsputn(s, n);
- }
- void LoggerBuffer::reserve(std::streamsize n)
- {
- if (n <= _buffer_len)
- {
- return;
- }
- //不超过最大大小
- if (n > MAX_BUFFER_LENGTH)
- {
- n = MAX_BUFFER_LENGTH;
- }
- int64_t len = pptr() - pbase();
- char_type * p = new char_type[n];
- memcpy(p, _buffer, len);
- delete[] _buffer;
- _buffer = p;
- _buffer_len = n;
- setp(_buffer, _buffer + _buffer_len);
- pbump((int)len);
- return;
- }
- std::basic_streambuf<char>::int_type LoggerBuffer::overflow(std::basic_streambuf<char>::int_type c)
- {
- if (!_roll)
- {
- return 0;
- }
- if (_buffer_len >= MAX_BUFFER_LENGTH)
- {
- sync();
- }
- else
- {
- reserve(_buffer_len * 2);
- }
- if (std::char_traits<char_type>::eq_int_type(c, std::char_traits<char_type>::eof()) )
- {
- return std::char_traits<char_type>::not_eof(c);
- }
- else
- {
- return sputc(c);
- }
- return 0;
- }
- int LoggerBuffer::sync()
- {
- //有数据
- if (pptr() > pbase())
- {
- std::streamsize len = pptr() - pbase();
- if (_roll)
- {
- //具体的写逻辑
- _roll->write(make_pair(TC_Thread::CURRENT_THREADID(), string(pbase(), len)));
- }
- //重新设置put缓冲区, pptr()重置到pbase()处
- setp(pbase(), epptr());
- }
- return 0;
- }
- ////////////////////////////////////////////////////////////////////////////////////
- //
- }
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