amiga_imgv
annotate src/logger.c @ 0:a4788c959918
initial commit
| author | John Tsiombikas <nuclear@member.fsf.org> |
|---|---|
| date | Wed, 25 Oct 2017 19:34:53 +0300 |
| parents | |
| children | ae0ada629b03 |
| rev | line source |
|---|---|
| nuclear@0 | 1 #include <stdio.h> |
| nuclear@0 | 2 #include <stdlib.h> |
| nuclear@0 | 3 #include <stdarg.h> |
| nuclear@0 | 4 #include "logger.h" |
| nuclear@0 | 5 |
| nuclear@0 | 6 static FILE *fp; |
| nuclear@0 | 7 |
| nuclear@0 | 8 static void init(void) |
| nuclear@0 | 9 { |
| nuclear@0 | 10 if(!(fp = fopen("logfile", "w"))) { |
| nuclear@0 | 11 printf("failed to open logfile\n"); |
| nuclear@0 | 12 abort(); |
| nuclear@0 | 13 } |
| nuclear@0 | 14 setvbuf(fp, 0, _IONBF, 0); |
| nuclear@0 | 15 } |
| nuclear@0 | 16 |
| nuclear@0 | 17 void logmsg(const char *fmt, ...) |
| nuclear@0 | 18 { |
| nuclear@0 | 19 va_list ap; |
| nuclear@0 | 20 |
| nuclear@0 | 21 if(!fp) init(); |
| nuclear@0 | 22 |
| nuclear@0 | 23 va_start(ap, fmt); |
| nuclear@0 | 24 vfprintf(fp, fmt, ap); |
| nuclear@0 | 25 va_end(ap); |
| nuclear@0 | 26 } |