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log4z.cpp
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/*
* Log4z License
* -----------
*
* Log4z is licensed under the terms of the MIT license reproduced below.
* This means that Log4z is free software and can be used for both academic
* and commercial purposes at absolutely no cost.
*
*
* ===============================================================================
*
* Copyright (C) 2010-2017 YaweiZhang <[email protected]>.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*
* ===============================================================================
*
* (end of COPYRIGHT)
*/
#include "log4z.h"
#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <time.h>
#include <string.h>
#include <math.h>
#include <string>
#include <vector>
#include <map>
#include <list>
#include <algorithm>
#include <iostream>
#ifdef WIN32
#include <io.h>
#include <shlwapi.h>
#include <process.h>
#pragma comment(lib, "shlwapi")
#pragma comment(lib, "User32.lib")
#pragma warning(disable:4996)
#else
#include <unistd.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <sys/types.h>
#include <sys/socket.h>
#include<pthread.h>
#include <sys/time.h>
#include <sys/stat.h>
#include <dirent.h>
#include <fcntl.h>
#include <semaphore.h>
#include <sys/syscall.h>
#endif
#ifdef __APPLE__
#include "TargetConditionals.h"
#include <dispatch/dispatch.h>
#if !TARGET_OS_IPHONE
#define LOG4Z_HAVE_LIBPROC
#include <libproc.h>
#endif
#endif
_ZSUMMER_BEGIN
_ZSUMMER_LOG4Z_BEGIN
static const char *const LOG_STRING[]=
{
"LOG_TRACE",
"LOG_DEBUG",
"LOG_INFO ",
"LOG_WARN ",
"LOG_ERROR",
"LOG_ALARM",
"LOG_FATAL",
};
static const size_t LOG_STRING_LEN[] =
{
sizeof("LOG_TRACE") - 1,
sizeof("LOG_DEBUG") - 1,
sizeof("LOG_INFO") - 1,
sizeof("LOG_WARN") - 1,
sizeof("LOG_ERROR") - 1,
sizeof("LOG_ALARM") - 1,
sizeof("LOG_FATAL") - 1,
};
#ifdef WIN32
const static WORD LOG_COLOR[LOG_LEVEL_FATAL + 1] = {
0,
0,
FOREGROUND_BLUE | FOREGROUND_GREEN,
FOREGROUND_GREEN | FOREGROUND_RED,
FOREGROUND_RED,
FOREGROUND_GREEN,
FOREGROUND_RED | FOREGROUND_BLUE };
#else
const static char LOG_COLOR[LOG_LEVEL_FATAL + 1][50] = {
"\e[0m",
"\e[0m",
"\e[34m\e[1m",//hight blue
"\e[33m", //yellow
"\e[31m", //red
"\e[32m", //green
"\e[35m" };
#endif
//////////////////////////////////////////////////////////////////////////
//! Log4zFileHandler
//////////////////////////////////////////////////////////////////////////
class Log4zFileHandler
{
public:
Log4zFileHandler(){ _file = NULL; }
~Log4zFileHandler(){ close(); }
inline bool isOpen(){ return _file != NULL; }
inline long open(const char *path, const char * mod)
{
if (_file != NULL){fclose(_file);_file = NULL;}
_file = fopen(path, mod);
if (_file)
{
long tel = 0;
long cur = ftell(_file);
fseek(_file, 0L, SEEK_END);
tel = ftell(_file);
fseek(_file, cur, SEEK_SET);
return tel;
}
return -1;
}
inline void clean(int index, int len)
{
#if !defined(__APPLE__) && !defined(WIN32)
if (_file != NULL)
{
int fd = fileno(_file);
fsync(fd);
posix_fadvise(fd, index, len, POSIX_FADV_DONTNEED);
fsync(fd);
}
#endif
}
inline void close()
{
if (_file != NULL){clean(0, 0); fclose(_file);_file = NULL;}
}
inline void write(const char * data, size_t len)
{
if (_file && len > 0)
{
if (fwrite(data, 1, len, _file) != len)
{
close();
}
}
}
inline void flush(){ if (_file) fflush(_file); }
inline std::string readLine()
{
char buf[500] = { 0 };
if (_file && fgets(buf, 500, _file) != NULL)
{
return std::string(buf);
}
return std::string();
}
inline const std::string readContent();
inline bool removeFile(const std::string & path) { return ::remove(path.c_str()) == 0; }
public:
FILE *_file;
};
//////////////////////////////////////////////////////////////////////////
//! UTILITY
//////////////////////////////////////////////////////////////////////////
static void fixPath(std::string &path);
static void trimLogConfig(std::string &str, std::string extIgnore = std::string());
static std::pair<std::string, std::string> splitPairString(const std::string & str, const std::string & delimiter);
static bool isDirectory(std::string path);
static bool createRecursionDir(std::string path);
static std::string getProcessID();
static std::string getProcessName();
//////////////////////////////////////////////////////////////////////////
//! LockHelper
//////////////////////////////////////////////////////////////////////////
class LockHelper
{
public:
LockHelper();
virtual ~LockHelper();
public:
void lock();
void unLock();
private:
#ifdef WIN32
CRITICAL_SECTION _crit;
#else
pthread_mutex_t _crit;
#endif
};
//////////////////////////////////////////////////////////////////////////
//! AutoLock
//////////////////////////////////////////////////////////////////////////
class AutoLock
{
public:
explicit AutoLock(LockHelper & lk):_lock(lk){_lock.lock();}
~AutoLock(){_lock.unLock();}
private:
LockHelper & _lock;
};
//////////////////////////////////////////////////////////////////////////
//! SemHelper
//////////////////////////////////////////////////////////////////////////
class SemHelper
{
public:
SemHelper();
virtual ~SemHelper();
public:
bool create(int initcount);
bool wait(int timeout = 0);
bool post();
private:
#ifdef WIN32
HANDLE _hSem;
#elif defined(__APPLE__)
dispatch_semaphore_t _semid;
#else
sem_t _semid;
bool _isCreate;
#endif
};
//////////////////////////////////////////////////////////////////////////
//! ThreadHelper
//////////////////////////////////////////////////////////////////////////
#ifdef WIN32
static unsigned int WINAPI threadProc(LPVOID lpParam);
#else
static void * threadProc(void * pParam);
#endif
class ThreadHelper
{
public:
ThreadHelper(){_hThreadID = 0;}
virtual ~ThreadHelper(){}
public:
bool start();
bool wait();
virtual void run() = 0;
private:
unsigned long long _hThreadID;
#ifndef WIN32
pthread_t _phtreadID;
#endif
};
#ifdef WIN32
unsigned int WINAPI threadProc(LPVOID lpParam)
{
ThreadHelper * p = (ThreadHelper *) lpParam;
p->run();
return 0;
}
#else
void * threadProc(void * pParam)
{
ThreadHelper * p = (ThreadHelper *) pParam;
p->run();
return NULL;
}
#endif
//////////////////////////////////////////////////////////////////////////
//! LogData
//////////////////////////////////////////////////////////////////////////
enum LogDataType
{
LDT_GENERAL,
LDT_ENABLE_LOGGER,
LDT_SET_LOGGER_NAME,
LDT_SET_LOGGER_PATH,
LDT_SET_LOGGER_LEVEL,
LDT_SET_LOGGER_FILELINE,
LDT_SET_LOGGER_DISPLAY,
LDT_SET_LOGGER_OUTFILE,
LDT_SET_LOGGER_LIMITSIZE,
LDT_SET_LOGGER_MONTHDIR,
LDT_SET_LOGGER_RESERVETIME,
// LDT_SET_LOGGER_,
};
//////////////////////////////////////////////////////////////////////////
//! LoggerInfo
//////////////////////////////////////////////////////////////////////////
struct LoggerInfo
{
//! attribute
std::string _key; //logger key
std::string _name; // one logger one name.
std::string _path; //path for log file.
int _level; //filter level
bool _display; //display to screen
bool _outfile; //output to file
bool _monthdir; //create directory per month
unsigned int _limitsize; //limit file's size, unit Million byte.
bool _enable; //logger is enable
bool _fileLine; //enable/disable the log's suffix.(file name:line number)
time_t _logReserveTime; //log file reserve time. unit is time second.
//! runtime info
time_t _curFileCreateTime; //file create time
time_t _curFileCreateDay; //file create day time
unsigned int _curFileIndex; //rolling file index
unsigned int _curWriteLen; //current file length
Log4zFileHandler _handle; //file handle.
//!history
std::list<std::pair<time_t, std::string> > _historyLogs;
LoggerInfo()
{
_enable = false;
_path = LOG4Z_DEFAULT_PATH;
_level = LOG4Z_DEFAULT_LEVEL;
_display = LOG4Z_DEFAULT_DISPLAY;
_outfile = LOG4Z_DEFAULT_OUTFILE;
_monthdir = LOG4Z_DEFAULT_MONTHDIR;
_limitsize = LOG4Z_DEFAULT_LIMITSIZE;
_fileLine = LOG4Z_DEFAULT_SHOWSUFFIX;
_curFileCreateTime = 0;
_curFileCreateDay = 0;
_curFileIndex = 0;
_curWriteLen = 0;
_logReserveTime = 0;
}
};
//////////////////////////////////////////////////////////////////////////
//! LogerManager
//////////////////////////////////////////////////////////////////////////
class LogerManager : public ThreadHelper, public ILog4zManager
{
public:
LogerManager();
virtual ~LogerManager();
bool configFromStringImpl(std::string content, bool isUpdate);
//! 读取配置文件并覆写
virtual bool config(const char* configPath);
virtual bool configFromString(const char* configContent);
//! 覆写式创建
virtual LoggerId createLogger(const char* key);
virtual bool start();
virtual bool stop();
virtual bool prePushLog(LoggerId id, int level);
virtual bool pushLog(LogData * pLog, const char * file, int line);
//! 查找ID
virtual LoggerId findLogger(const char* key);
bool hotChange(LoggerId id, LogDataType ldt, int num, const std::string & text);
virtual bool enableLogger(LoggerId id, bool enable);
virtual bool setLoggerName(LoggerId id, const char * name);
virtual bool setLoggerPath(LoggerId id, const char * path);
virtual bool setLoggerLevel(LoggerId id, int nLevel);
virtual bool setLoggerFileLine(LoggerId id, bool enable);
virtual bool setLoggerDisplay(LoggerId id, bool enable);
virtual bool setLoggerOutFile(LoggerId id, bool enable);
virtual bool setLoggerLimitsize(LoggerId id, unsigned int limitsize);
virtual bool setLoggerMonthdir(LoggerId id, bool enable);
virtual bool setLoggerReserveTime(LoggerId id, time_t sec);
virtual bool setAutoUpdate(int interval);
virtual bool updateConfig();
virtual bool isLoggerEnable(LoggerId id);
virtual unsigned long long getStatusTotalWriteCount(){return _ullStatusTotalWriteFileCount;}
virtual unsigned long long getStatusTotalWriteBytes() { return _ullStatusTotalWriteFileBytes; }
virtual unsigned long long getStatusTotalPushQueue() { return _ullStatusTotalPushLog; }
virtual unsigned long long getStatusTotalPopQueue() { return _ullStatusTotalPopLog; }
virtual unsigned int getStatusActiveLoggers();
protected:
virtual LogData * makeLogData(LoggerId id, int level);
virtual void freeLogData(LogData * log);
void showColorText(const char *text, int level = LOG_LEVEL_DEBUG);
bool onHotChange(LoggerId id, LogDataType ldt, int num, const std::string & text);
bool openLogger(LogData * log);
bool closeLogger(LoggerId id);
bool popLog(LogData *& log);
virtual void run();
private:
//! thread status.
bool _runing;
//! wait thread started.
SemHelper _semaphore;
//! hot change name or path for one logger
int _hotUpdateInterval;
unsigned int _checksum;
//! the process info.
std::string _pid;
std::string _proName;
//! config file name
std::string _configFile;
//! logger id manager, [logger name]:[logger id].
std::map<std::string, LoggerId> _ids;
// the last used id of _loggers
LoggerId _lastId;
LoggerInfo _loggers[LOG4Z_LOGGER_MAX];
//! log queue
char _chunk1[256];
LockHelper _logLock;
std::deque<LogData *> _logs;
unsigned long long _ullStatusTotalPushLog;
char _chunk2[256];
LockHelper _freeLock;
std::vector<LogData*> _freeLogDatas;
char _chunk3[256];
//show color lock
LockHelper _scLock;
//status statistics
//write file
char _chunk4[256];
std::deque<LogData *> _logsCache;
unsigned long long _ullStatusTotalPopLog;
unsigned long long _ullStatusTotalWriteFileCount;
unsigned long long _ullStatusTotalWriteFileBytes;
};
//////////////////////////////////////////////////////////////////////////
//! Log4zFileHandler
//////////////////////////////////////////////////////////////////////////
const std::string Log4zFileHandler::readContent()
{
std::string content;
if (!_file)
{
return content;
}
char buf[BUFSIZ];
size_t ret = 0;
do
{
ret = fread(buf, sizeof(char), BUFSIZ, _file);
content.append(buf, ret);
}
while (ret == BUFSIZ);
return content;
}
//////////////////////////////////////////////////////////////////////////
//! utility
//////////////////////////////////////////////////////////////////////////
static inline void sleepMillisecond(unsigned int ms)
{
#ifdef WIN32
::Sleep(ms);
#else
usleep(1000*ms);
#endif
}
static inline struct tm timeToTm(time_t t)
{
#ifdef WIN32
#if _MSC_VER < 1400 //VS2003
return * localtime(&t);
#else //vs2005->vs2013->
struct tm tt = { 0 };
localtime_s(&tt, &t);
return tt;
#endif
#else //linux
struct tm tt = { 0 };
localtime_r(&t, &tt);
return tt;
#endif
}
static void fixPath(std::string &path)
{
if (path.empty()){return;}
for (std::string::iterator iter = path.begin(); iter != path.end(); ++iter)
{
if (*iter == '\\'){*iter = '/';}
}
if (path.at(path.length()-1) != '/'){path.append("/");}
}
static void trimLogConfig(std::string &str, std::string extIgnore)
{
if (str.empty()){return;}
extIgnore += "\r\n\t ";
int length = (int)str.length();
int posBegin = 0;
int posEnd = 0;
//trim utf8 file bom
if (str.length() >= 3
&& (unsigned char)str[0] == 0xef
&& (unsigned char)str[1] == 0xbb
&& (unsigned char)str[2] == 0xbf)
{
posBegin = 3;
}
//trim character
for (int i = posBegin; i<length; i++)
{
bool bCheck = false;
for (int j = 0; j < (int)extIgnore.length(); j++)
{
if (str[i] == extIgnore[j])
{
bCheck = true;
}
}
if (bCheck)
{
if (i == posBegin)
{
posBegin++;
}
}
else
{
posEnd = i + 1;
}
}
if (posBegin < posEnd)
{
str = str.substr(posBegin, posEnd-posBegin);
}
else
{
str.clear();
}
}
//split
static std::pair<std::string, std::string> splitPairString(const std::string & str, const std::string & delimiter)
{
std::string::size_type pos = str.find(delimiter.c_str());
if (pos == std::string::npos)
{
return std::make_pair(str, "");
}
return std::make_pair(str.substr(0, pos), str.substr(pos+delimiter.length()));
}
static bool parseConfigLine(const std::string& line, int curLineNum, std::string & key, std::map<std::string, LoggerInfo> & outInfo)
{
std::pair<std::string, std::string> kv = splitPairString(line, "=");
if (kv.first.empty())
{
return false;
}
trimLogConfig(kv.first);
trimLogConfig(kv.second);
if (kv.first.empty() || kv.first.at(0) == '#')
{
return true;
}
if (kv.first.at(0) == '[')
{
trimLogConfig(kv.first, "[]");
key = kv.first;
{
std::string tmpstr = kv.first;
std::transform(tmpstr.begin(), tmpstr.end(), tmpstr.begin(), ::tolower);
if (tmpstr == "main")
{
key = "Main";
}
}
std::map<std::string, LoggerInfo>::iterator iter = outInfo.find(key);
if (iter == outInfo.end())
{
LoggerInfo li;
li._enable = true;
li._key = key;
li._name = key;
outInfo.insert(std::make_pair(li._key, li));
}
else
{
printf("log4z configure warning: duplicate logger key:[%s] at line: %d \r\n", key.c_str(), curLineNum);
}
return true;
}
trimLogConfig(kv.first);
trimLogConfig(kv.second);
std::map<std::string, LoggerInfo>::iterator iter = outInfo.find(key);
if (iter == outInfo.end())
{
printf("log4z configure warning: not found current logger name:[%s] at line:%d, key=%s, value=%s \r\n",
key.c_str(), curLineNum, kv.first.c_str(), kv.second.c_str());
return true;
}
std::transform(kv.first.begin(), kv.first.end(), kv.first.begin(), ::tolower);
//! path
if (kv.first == "path")
{
iter->second._path = kv.second;
return true;
}
else if (kv.first == "name")
{
iter->second._name = kv.second;
return true;
}
std::transform(kv.second.begin(), kv.second.end(), kv.second.begin(), ::tolower);
//! level
if (kv.first == "level")
{
if (kv.second == "trace" || kv.second == "all")
{
iter->second._level = LOG_LEVEL_TRACE;
}
else if (kv.second == "debug")
{
iter->second._level = LOG_LEVEL_DEBUG;
}
else if (kv.second == "info")
{
iter->second._level = LOG_LEVEL_INFO;
}
else if (kv.second == "warn" || kv.second == "warning")
{
iter->second._level = LOG_LEVEL_WARN;
}
else if (kv.second == "error")
{
iter->second._level = LOG_LEVEL_ERROR;
}
else if (kv.second == "alarm")
{
iter->second._level = LOG_LEVEL_ALARM;
}
else if (kv.second == "fatal")
{
iter->second._level = LOG_LEVEL_FATAL;
}
}
//! display
else if (kv.first == "display")
{
if (kv.second == "false" || kv.second == "0")
{
iter->second._display = false;
}
else
{
iter->second._display = true;
}
}
//! output to file
else if (kv.first == "outfile")
{
if (kv.second == "false" || kv.second == "0")
{
iter->second._outfile = false;
}
else
{
iter->second._outfile = true;
}
}
//! monthdir
else if (kv.first == "monthdir")
{
if (kv.second == "false" || kv.second == "0")
{
iter->second._monthdir = false;
}
else
{
iter->second._monthdir = true;
}
}
//! limit file size
else if (kv.first == "limitsize")
{
iter->second._limitsize = atoi(kv.second.c_str());
}
//! display log in file line
else if (kv.first == "fileline")
{
if (kv.second == "false" || kv.second == "0")
{
iter->second._fileLine = false;
}
else
{
iter->second._fileLine = true;
}
}
//! enable/disable one logger
else if (kv.first == "enable")
{
if (kv.second == "false" || kv.second == "0")
{
iter->second._enable = false;
}
else
{
iter->second._enable = true;
}
}
//! set reserve time
else if (kv.first == "reserve")
{
iter->second._logReserveTime = atoi(kv.second.c_str());
}
return true;
}
static bool parseConfigFromString(std::string content, std::map<std::string, LoggerInfo> & outInfo)
{
std::string key;
int curLine = 1;
std::string line;
std::string::size_type curPos = 0;
if (content.empty())
{
return true;
}
do
{
std::string::size_type pos = std::string::npos;
for (std::string::size_type i = curPos; i < content.length(); ++i)
{
//support linux/unix/windows LRCF
if (content[i] == '\r' || content[i] == '\n')
{
pos = i;
break;
}
}
line = content.substr(curPos, pos - curPos);
parseConfigLine(line, curLine, key, outInfo);
curLine++;
if (pos == std::string::npos)
{
break;
}
else
{
curPos = pos+1;
}
} while (1);
return true;
}
bool isDirectory(std::string path)
{
#ifdef WIN32
return PathIsDirectoryA(path.c_str()) ? true : false;
#else
DIR * pdir = opendir(path.c_str());
if (pdir == NULL)
{
return false;
}
else
{
closedir(pdir);
pdir = NULL;
return true;
}
#endif
}
bool createRecursionDir(std::string path)
{
if (path.length() == 0) return true;
std::string sub;
fixPath(path);
std::string::size_type pos = path.find('/');
while (pos != std::string::npos)
{
std::string cur = path.substr(0, pos-0);
if (cur.length() > 0 && !isDirectory(cur))
{
bool ret = false;
#ifdef WIN32
ret = CreateDirectoryA(cur.c_str(), NULL) ? true : false;
#else
ret = (mkdir(cur.c_str(), S_IRWXU|S_IRWXG|S_IRWXO) == 0);
#endif
if (!ret)
{
return false;
}
}
pos = path.find('/', pos+1);
}
return true;
}
std::string getProcessID()
{
std::string pid = "0";
char buf[260] = {0};
#ifdef WIN32
DWORD winPID = GetCurrentProcessId();
sprintf(buf, "%06u", winPID);
pid = buf;
#else
sprintf(buf, "%06d", getpid());
pid = buf;
#endif
return pid;
}
std::string getProcessName()
{
std::string name = "process";
char buf[260] = {0};
#ifdef WIN32
if (GetModuleFileNameA(NULL, buf, 259) > 0)
{
name = buf;
}
std::string::size_type pos = name.rfind("\\");
if (pos != std::string::npos)
{
name = name.substr(pos+1, std::string::npos);
}
pos = name.rfind(".");
if (pos != std::string::npos)
{
name = name.substr(0, pos-0);
}
#elif defined(LOG4Z_HAVE_LIBPROC)
proc_name(getpid(), buf, 260);
name = buf;
return name;;
#else
sprintf(buf, "/proc/%d/cmdline", (int)getpid());
Log4zFileHandler i;
i.open(buf, "rb");
if (!i.isOpen())
{
return name;
}
name = i.readLine();
i.close();
std::string::size_type pos = name.rfind("/");
if (pos != std::string::npos)
{
name = name.substr(pos+1, std::string::npos);
}
#endif
return name;
}
//////////////////////////////////////////////////////////////////////////
// LockHelper
//////////////////////////////////////////////////////////////////////////
LockHelper::LockHelper()
{
#ifdef WIN32
InitializeCriticalSection(&_crit);
#else
//_crit = PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP;
pthread_mutexattr_t attr;
pthread_mutexattr_init(&attr);
//pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_TIMED_NP);
//pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE);
pthread_mutex_init(&_crit, &attr);
pthread_mutexattr_destroy(&attr);
#endif
}
LockHelper::~LockHelper()
{
#ifdef WIN32
DeleteCriticalSection(&_crit);
#else
pthread_mutex_destroy(&_crit);
#endif
}
void LockHelper::lock()
{
#ifdef WIN32
EnterCriticalSection(&_crit);
#else
pthread_mutex_lock(&_crit);
#endif
}
void LockHelper::unLock()
{
#ifdef WIN32
LeaveCriticalSection(&_crit);
#else
pthread_mutex_unlock(&_crit);
#endif
}
//////////////////////////////////////////////////////////////////////////
// SemHelper
//////////////////////////////////////////////////////////////////////////
SemHelper::SemHelper()
{
#ifdef WIN32
_hSem = NULL;
#elif defined(__APPLE__)
_semid = NULL;
#else