Source code
/******************************************************************************
*
* Copyright (c) 2014 Antillia.com TOSHIYUKI ARAI. ALL RIGHTS RESERVED.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions, and the following disclaimer.
*
* 2. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*
* LogWriter.h
*
*****************************************************************************/
#pragma once
#include <es++/Object.h>
#include <es++/LocalDateTime.h>
namespace Es {
class LogWriter :public Object {
public:
LogWriter()
{
}
public:
static
void err(const char* format,...) {
char buffer[LINE_MAX];
va_list pos;
va_start(pos, format);
vsnprintf(buffer, LINE_MAX, format, pos);
va_end(pos);
write("ERR:", buffer);
}
public:
static
void debug(const char* format,...) {
char buffer[LINE_MAX];
va_list pos;
va_start(pos, format);
vsnprintf(buffer, LINE_MAX, format, pos);
va_end(pos);
write("DEBUG:", buffer);
}
public:
static
void err(const wchar_t* format,...) {
wchar_t buffer[LINE_MAX];
va_list pos;
va_start(pos, format);
vswprintf(buffer, LINE_MAX, format, pos);
va_end(pos);
write("ERR:", buffer);
}
public:
static
void debug(const wchar_t* format,...) {
wchar_t buffer[LINE_MAX];
va_list pos;
va_start(pos, format);
vswprintf(buffer, LINE_MAX, format, pos);
va_end(pos);
write("DEBUG:", buffer);
}
private:
static
void write(const char* level, const char* buffer) {
char logFile[PATH_MAX];
pid_t pid = getpid();
sprintf(logFile, "pid_%d.log", pid);
char cmdline[PATH_MAX];
if (getCmdline(cmdline, sizeof(cmdline)) == 0) {
sprintf(logFile, "%s.log", cmdline);
}
FILE* fp = fopen(logFile, "a+");
if (fp != NULL) {
//int fd = fileno(fp);
//if (::flock(fd， LOCK_EX) == 0) {
LocalDateTime localDateTime;
char now[256];
localDateTime.nowToSeconds(now, sizeof(now));
fprintf(fp, "%s %s %s\n", now, level, buffer);
//}
//::flock(fd， LOCK_UN);
fclose(fp);
}
}
private:
static
void write(const char* level, const wchar_t* buffer) {
char logFile[PATH_MAX];
pid_t pid = getpid();
sprintf(logFile, "pid_%d.log", pid);
char cmdline[PATH_MAX];
if (getCmdline(cmdline, sizeof(cmdline)) == 0) {
sprintf(logFile, "%s.log", cmdline);
}
FILE* fp = fopen(logFile, "a+");
if (fp != NULL) {
//int fd = fileno(fp);
//if (::flock(fd， LOCK_EX) == 0) {
LocalDateTime localDateTime;
char now[256];
localDateTime.nowToSeconds(now, sizeof(now)/sizeof(now[0]));
fwprintf(fp, L"%s %s %ls\n", now, level, buffer);
//}
//::flock(fd， LOCK_UN);
fclose(fp);
}
}
public:
static
void dump(const char* message, const unsigned char* data, size_t len,
const char* format,...)
{
char buffer[LINE_MAX];
va_list pos;
va_start(pos, format);
vsnprintf(buffer, sizeof(buffer), format, pos);
va_end(pos);
char logFile[PATH_MAX];
pid_t pid = getpid();
sprintf(logFile, "pid_%d.log", pid);
char cmdline[PATH_MAX];
if (getCmdline(cmdline, sizeof(cmdline)) == 0) {
sprintf(logFile, "%s.log", cmdline);
}
FILE* fp = fopen(logFile, "a+");
if (fp != NULL) {
LocalDateTime localDateTime;
//int fd = fileno(fp);
//if (::flock(fd， LOCK_EX) == 0) {
char now[128];
localDateTime.nowToSeconds(now, sizeof(now));
fprintf(fp, "%s %s %s size=%d\n", now, buffer, message, len);
const int SIXTEEN = 16;
int lines = len / SIXTEEN;
int remainder = len % SIXTEEN;
if (remainder) {
lines++;
}
int i, j, s;
for (i = 0; i<lines; i++) {
int MAX = SIXTEEN;
if (remainder>0 && i == (lines-1)) {
MAX = remainder;
}
for (s = 0; s<MAX; s++) {
fprintf(fp, "%02X ", data[i*16+s]);
}
for(j = 0; j<SIXTEEN-MAX; j++) {
fprintf(fp, " ");
}
fprintf(fp, " ");
for (s = 0; s<MAX; s++) {
char c = (char)data[i*16+s];
if (c <' ') {
c = '.';
}
fprintf(fp, "%c", c);
}
fprintf(fp, "\n");
}
fprintf(fp, "\n");
//}
//::flock(fd， LOCK_UN);
fclose(fp);
}
}
private:
static
int getCmdline(char* line, size_t size) {
static char filename[PATH_MAX] = { '\0' };
int rc = -1;
if (filename[0] == '\0') {
pid_t pid = getpid();
char cmdline[PATH_MAX];
sprintf(cmdline, "/proc/%d/cmdline", pid);
FILE* fp = fopen(cmdline, "r");
if (fp) {
if (fgets(filename, sizeof(filename), fp)) {
char* lf = strrchr(filename, '\n');
if (lf) {
*lf = '\0';
}
}
fclose(fp);
}
}
if (filename[0] != '\0') {
rc = 0;
strcpy(line, filename);
}
return rc;
}
};
/*
#define err(format, ...) \
do { \
LogWriter::err( \
L"%s (%d) %s: " format, __FILE__, __LINE__, \
__func__ , ##__VA_ARGS__); \
} while(0)
#define dump(message, data, len) \
do { \
LogWriter::dump(message, data, len, \
"DUMP: %s (%d) %s: ", __FILE__, __LINE__, __func__); \
\
} while(0)
#ifdef DEBUG
#define debug(format, ...) \
do { \
LogWriter::debug( \
L"%s (%d) %s: " format, __FILE__, __LINE__, \
__func__ , ##__VA_ARGS__); \
} while(0)
#else
#define debug(fmt, ...)
#endif
*/
}
Last modified: 27 July 2017
Copyright (c) 2009-2017 Antillia.com ALL RIGHTS RESERVED.