octoleo/s3fs-fuse
1
0
Fork 0
mirror of https://github.com/s3fs-fuse/s3fs-fuse.git synced 2024-06-27 12:53:31 +00:00
Code Issues Packages Projects Releases Wiki Activity
32f096fa3f
s3fs-fuse/src/s3fs_logger.h
Takeshi Nakatani 32f096fa3f Use clock_gettime instead of gettimeofday
2021-02-08 10:19:28 +09:00

254 lines
9.7 KiB
C++
Raw Blame History

/*
* s3fs - FUSE-based file system backed by Amazon S3
*
* Copyright(C) 2007 Randy Rizun <rrizun@gmail.com>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#ifndef S3FS_LOGGER_H_
#define S3FS_LOGGER_H_
#include <cstdio>
#include <syslog.h>
#include <sys/time.h>
#ifdef CLOCK_MONOTONIC_COARSE
#define S3FS_CLOCK_MONOTONIC CLOCK_MONOTONIC_COARSE
#else
// case of OSX
#define S3FS_CLOCK_MONOTONIC CLOCK_MONOTONIC
#endif
//-------------------------------------------------------------------
// S3fsLog class
//-------------------------------------------------------------------
class S3fsLog
{
public:
enum s3fs_log_level{
LEVEL_CRIT = 0, // LEVEL_CRIT
LEVEL_ERR = 1, // LEVEL_ERR
LEVEL_WARN = 3, // LEVEL_WARNING
LEVEL_INFO = 7, // LEVEL_INFO
LEVEL_DBG = 15 // LEVEL_DEBUG
};
protected:
static const int NEST_MAX = 4;
static const char* nest_spaces[NEST_MAX];
static const char* LOGFILEENV;
static S3fsLog* pSingleton;
static s3fs_log_level debug_level;
static FILE* logfp;
static std::string* plogfile;
static char current_time[64];
protected:
bool LowLoadEnv();
bool LowSetLogfile(const char* pfile);
s3fs_log_level LowSetLogLevel(s3fs_log_level level);
s3fs_log_level LowBumpupLogLevel();
public:
static bool IsS3fsLogLevel(s3fs_log_level level);
static bool IsS3fsLogCrit() { return IsS3fsLogLevel(LEVEL_CRIT); }
static bool IsS3fsLogErr() { return IsS3fsLogLevel(LEVEL_ERR); }
static bool IsS3fsLogWarn() { return IsS3fsLogLevel(LEVEL_WARN); }
static bool IsS3fsLogInfo() { return IsS3fsLogLevel(LEVEL_INFO); }
static bool IsS3fsLogDbg() { return IsS3fsLogLevel(LEVEL_DBG); }
static int GetSyslogLevel(s3fs_log_level level)
{
return ( LEVEL_DBG == (level & LEVEL_DBG) ? LOG_DEBUG :
LEVEL_INFO == (level & LEVEL_DBG) ? LOG_INFO :
LEVEL_WARN == (level & LEVEL_DBG) ? LOG_WARNING :
LEVEL_ERR == (level & LEVEL_DBG) ? LOG_ERR : LOG_CRIT );
}
static const char* GetCurrentTime()
{
struct timeval now;
struct timespec tsnow;
struct tm res;
char tmp[32];
if(-1 == clock_gettime(S3FS_CLOCK_MONOTONIC, &tsnow)){
now.tv_sec = tsnow.tv_sec;
now.tv_usec = (tsnow.tv_nsec / 1000);
}else{
gettimeofday(&now, NULL);
}
strftime(tmp, sizeof(tmp), "%Y-%m-%dT%H:%M:%S", gmtime_r(&now.tv_sec, &res));
snprintf(current_time, sizeof(current_time), "%s.%03ldZ", tmp, (now.tv_usec / 1000));
return current_time;
}
static const char* GetLevelString(s3fs_log_level level)
{
return ( LEVEL_DBG == (level & LEVEL_DBG) ? "[DBG] " :
LEVEL_INFO == (level & LEVEL_DBG) ? "[INF] " :
LEVEL_WARN == (level & LEVEL_DBG) ? "[WAN] " :
LEVEL_ERR == (level & LEVEL_DBG) ? "[ERR] " : "[CRT] " );
}
static const char* GetS3fsLogNest(int nest)
{
if(nest < NEST_MAX){
return nest_spaces[nest];
}else{
return nest_spaces[NEST_MAX - 1];
}
}
static bool IsSetLogFile()
{
return (NULL != logfp);
}
static FILE* GetOutputLogFile()
{
return (logfp ? logfp : stdout);
}
static FILE* GetErrorLogFile()
{
return (logfp ? logfp : stderr);
}
static void SeekEnd()
{
if(logfp){
fseek(logfp, 0, SEEK_END);
}
}
static void Flush()
{
if(logfp){
fflush(logfp);
}
}
static bool SetLogfile(const char* pfile);
static bool ReopenLogfile();
static s3fs_log_level SetLogLevel(s3fs_log_level level);
static s3fs_log_level BumpupLogLevel();
explicit S3fsLog();
~S3fsLog();
};
//-------------------------------------------------------------------
// Debug macros
//-------------------------------------------------------------------
#define S3FS_LOW_LOGPRN(level, fmt, ...) \
do{ \
if(S3fsLog::IsS3fsLogLevel(level)){ \
if(foreground || S3fsLog::IsSetLogFile()){ \
S3fsLog::SeekEnd(); \
fprintf(S3fsLog::GetOutputLogFile(), "%s %s%s:%s(%d): " fmt "%s\n", S3fsLog::GetCurrentTime(), S3fsLog::GetLevelString(level), __FILE__, __func__, __LINE__, __VA_ARGS__); \
S3fsLog::Flush(); \
}else{ \
syslog(S3fsLog::GetSyslogLevel(level), "%s%s:%s(%d): " fmt "%s", instance_name.c_str(), __FILE__, __func__, __LINE__, __VA_ARGS__); \
} \
} \
}while(0)
#define S3FS_LOW_LOGPRN2(level, nest, fmt, ...) \
do{ \
if(S3fsLog::IsS3fsLogLevel(level)){ \
if(foreground || S3fsLog::IsSetLogFile()){ \
S3fsLog::SeekEnd(); \
fprintf(S3fsLog::GetOutputLogFile(), "%s %s%s%s:%s(%d): " fmt "%s\n", S3fsLog::GetCurrentTime(), S3fsLog::GetLevelString(level), S3fsLog::GetS3fsLogNest(nest), __FILE__, __func__, __LINE__, __VA_ARGS__); \
S3fsLog::Flush(); \
}else{ \
syslog(S3fsLog::GetSyslogLevel(level), "%s%s" fmt "%s", instance_name.c_str(), S3fsLog::GetS3fsLogNest(nest), __VA_ARGS__); \
} \
} \
}while(0)
#define S3FS_LOW_CURLDBG(fmt, ...) \
do{ \
if(foreground || S3fsLog::IsSetLogFile()){ \
S3fsLog::SeekEnd(); \
fprintf(S3fsLog::GetOutputLogFile(), "%s [CURL DBG] " fmt "%s\n", S3fsLog::GetCurrentTime(), __VA_ARGS__); \
S3fsLog::Flush(); \
}else{ \
syslog(S3fsLog::GetSyslogLevel(S3fsLog::LEVEL_CRIT), "%s" fmt "%s", instance_name.c_str(), __VA_ARGS__); \
} \
}while(0)
#define S3FS_LOW_LOGPRN_EXIT(fmt, ...) \
do{ \
if(foreground || S3fsLog::IsSetLogFile()){ \
S3fsLog::SeekEnd(); \
fprintf(S3fsLog::GetErrorLogFile(), "s3fs: " fmt "%s\n", __VA_ARGS__); \
S3fsLog::Flush(); \
}else{ \
fprintf(S3fsLog::GetErrorLogFile(), "s3fs: " fmt "%s\n", __VA_ARGS__); \
syslog(S3fsLog::GetSyslogLevel(S3fsLog::LEVEL_CRIT), "%ss3fs: " fmt "%s", instance_name.c_str(), __VA_ARGS__); \
} \
}while(0)
// Special macro for init message
#define S3FS_PRN_INIT_INFO(fmt, ...) \
do{ \
if(foreground || S3fsLog::IsSetLogFile()){ \
S3fsLog::SeekEnd(); \
fprintf(S3fsLog::GetOutputLogFile(), "%s %s%s%s:%s(%d): " fmt "%s\n", S3fsLog::GetCurrentTime(), S3fsLog::GetLevelString(S3fsLog::LEVEL_INFO), S3fsLog::GetS3fsLogNest(0), __FILE__, __func__, __LINE__, __VA_ARGS__, ""); \
S3fsLog::Flush(); \
}else{ \
syslog(S3fsLog::GetSyslogLevel(S3fsLog::LEVEL_INFO), "%s%s" fmt "%s", instance_name.c_str(), S3fsLog::GetS3fsLogNest(0), __VA_ARGS__, ""); \
} \
}while(0)
// Special macro for checking cache files
#define S3FS_LOW_CACHE(fp, fmt, ...) \
do{ \
if(foreground || S3fsLog::IsSetLogFile()){ \
S3fsLog::SeekEnd(); \
fprintf(fp, fmt "%s\n", __VA_ARGS__); \
S3fsLog::Flush(); \
}else{ \
syslog(S3fsLog::GetSyslogLevel(S3fsLog::LEVEL_INFO), "%s: " fmt "%s", instance_name.c_str(), __VA_ARGS__); \
} \
}while(0)
// [NOTE]
// small trick for VA_ARGS
//
#define S3FS_PRN_EXIT(fmt, ...) S3FS_LOW_LOGPRN_EXIT(fmt, ##__VA_ARGS__, "")
#define S3FS_PRN_CRIT(fmt, ...) S3FS_LOW_LOGPRN(S3fsLog::LEVEL_CRIT, fmt, ##__VA_ARGS__, "")
#define S3FS_PRN_ERR(fmt, ...) S3FS_LOW_LOGPRN(S3fsLog::LEVEL_ERR, fmt, ##__VA_ARGS__, "")
#define S3FS_PRN_WARN(fmt, ...) S3FS_LOW_LOGPRN(S3fsLog::LEVEL_WARN, fmt, ##__VA_ARGS__, "")
#define S3FS_PRN_DBG(fmt, ...) S3FS_LOW_LOGPRN(S3fsLog::LEVEL_DBG, fmt, ##__VA_ARGS__, "")
#define S3FS_PRN_INFO(fmt, ...) S3FS_LOW_LOGPRN2(S3fsLog::LEVEL_INFO, 0, fmt, ##__VA_ARGS__, "")
#define S3FS_PRN_INFO1(fmt, ...) S3FS_LOW_LOGPRN2(S3fsLog::LEVEL_INFO, 1, fmt, ##__VA_ARGS__, "")
#define S3FS_PRN_INFO2(fmt, ...) S3FS_LOW_LOGPRN2(S3fsLog::LEVEL_INFO, 2, fmt, ##__VA_ARGS__, "")
#define S3FS_PRN_INFO3(fmt, ...) S3FS_LOW_LOGPRN2(S3fsLog::LEVEL_INFO, 3, fmt, ##__VA_ARGS__, "")
#define S3FS_PRN_CURL(fmt, ...) S3FS_LOW_CURLDBG(fmt, ##__VA_ARGS__, "")
#define S3FS_PRN_CACHE(fp, ...) S3FS_LOW_CACHE(fp, ##__VA_ARGS__, "")
#endif // S3FS_LOGGER_H_
/*
* Local variables:
* tab-width: 4
* c-basic-offset: 4
* End:
* vim600: expandtab sw=4 ts=4 fdm=marker
* vim<600: expandtab sw=4 ts=4
*/
Reference in New Issue View Git Blame Copy Permalink