1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
|
#ifndef LOG_HXX
#define LOG_HXX
#include <stdarg.h>
#include <stdio.h>
struct log_t
{
FILE * _file;
int _level;
int _close;
log_t(const char * logpath, int level = 0) : _file(NULL), _level(level), _close(1)
{
_file = fopen(logpath, "w");
if (!_file)
{
fprintf(stderr, "Failed to open log file for writing: %s\n", logpath);
}
}
log_t(FILE * file, int level = 0): _file(file), _level(level), _close(0)
{
}
~log_t()
{
if (_close && _file) fclose(_file);
}
void printf( const char * fmt, ... ) __attribute__(( format (printf, 2,3)))
{
if (!_file) return;
va_list ap;
va_start(ap,fmt);
::vfprintf(_file, fmt, ap);
va_end(ap);
fflush(_file);
}
void printf( int level, const char * fmt, ... ) __attribute__(( format (printf, 3,4)))
{
if (level <= _level)
{
if (!_file) return;
fprintf(_file, "L%i:", level);
va_list ap;
va_start(ap,fmt);
::vfprintf(_file, fmt, ap);
va_end(ap);
fflush(_file);
}
}
};
#endif
|
