src_platform/sdl/bz/debug/log.c

   1 #include <bz/debug/log_internal.h>
   2
   3 #include <stb_sprintf.h>
   4
   5 #include <fcntl.h>
   6 #include <stddef.h>
   7 #include <stdlib.h>
   8 #include <time.h>
   9 #include <unistd.h>
  10
  11 #define _OUTPUT_PRELUDE(dst, name, filename, lineNumber) { \
  12                 time_t t; \
  13                 time(&t); \
  14                 struct tm *timeinfo = localtime(&t); \
  15                 output(dst, name",%02d:%02d:%02d,\"%s\"@%d,", timeinfo->tm_hour, timeinfo->tm_min, timeinfo->tm_sec, filename, lineNumber); \
  16         }
  17
  18 static char buffer[STB_SPRINTF_MIN];
  19
  20 static int errorFD = STDERR_FILENO;
  21 static int outputFD = STDOUT_FILENO;
  22
  23 static char *sprintfCallback(char const *buf, void *user, int len) {
  24         int fd = (int)((long)user);
  25         write(fd, buf, (size_t)len);
  26         return buffer;
  27 }
  28
  29 static void output(int fd, const char *fmt, ...) {
  30         va_list args;
  31         va_start(args, fmt);
  32         stbsp_vsprintfcb(sprintfCallback, (void *)((long)fd), buffer, fmt, args);
  33         va_end(args);
  34 }
  35
  36 void _bzLog(const char *filename, unsigned long lineNumber, const char *fmt, ...) {
  37         va_list args;
  38         va_start(args, fmt);
  39         _OUTPUT_PRELUDE(outputFD, "LOG", filename, lineNumber);
  40         stbsp_vsprintfcb(sprintfCallback, (void *)((long)outputFD), buffer, fmt, args);
  41         output(outputFD, "\n");
  42         va_end(args);
  43 }
  44
  45 void _bzError(const char *filename, unsigned long lineNumber, const char *fmt, ...) {
  46         va_list args;
  47         va_start(args, fmt);
  48         _OUTPUT_PRELUDE(errorFD, "ERROR", filename, lineNumber);
  49         stbsp_vsprintfcb(sprintfCallback, (void *)((long)errorFD), buffer, fmt, args);
  50         output(errorFD, "\n");
  51         va_end(args);
  52 }
  53
  54 void bzLogInit(const char *outputFilePath) {
  55         if (outputFilePath != NULL) {
  56                 outputFD = errorFD = open(outputFilePath, O_CREAT | O_WRONLY, S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH);
  57         }
  58 }
  59
  60 void bzLogTeardown() {
  61         //close();
  62 }