debug.c

   1 #include <stdarg.h>
   2 #include <stdlib.h>
   3 #include <stdio.h>
   4 #include <windows.h> /* MB_OK */
   5 #include "debug.h"
   6
   7 static char debug_git_file[MAX_PATH];
   8 static FILE * debug_git_fd = NULL;
   9
  10 void debug_git_set_file(const char * filename)
  11 {
  12         if (debug_git_fd)
  13         {
  14                 fclose(debug_git_fd);
  15                 debug_git_fd = NULL;
  16         }
  17
  18         strncpy(debug_git_file, filename, MAX_PATH);
  19         debug_git_file[MAX_PATH-1] = '\0';
  20
  21         debug_git_fd = fopen(debug_git_file, "a+");
  22 }
  23
  24 void debug_git(char * format, ...)
  25 {
  26         if (!debug_git_fd)
  27         {
  28                 debug_git_set_file(DEFAULT_DEBUG_GIT_FILE);
  29         }
  30
  31         /* Check again in case the above debug_git_set_file failed. */
  32         if (debug_git_fd)
  33         {
  34                 va_list params;
  35                 char buffer[1024];
  36                 int length = 0;
  37
  38                 va_start(params, format);
  39                 length = vsnprintf(buffer, sizeof(buffer), format, params);
  40                 va_end(params);
  41                 fwrite(buffer, sizeof(char), length, debug_git_fd);
  42                 fputc('\n', debug_git_fd);
  43                 fflush(debug_git_fd);
  44         }
  45 }
  46
  47 void debug_git_mbox(char *format, ...)
  48 {
  49         va_list params;
  50         char buffer[1024];
  51
  52         va_start(params, format);
  53         vsnprintf(buffer, sizeof(buffer), format, params);
  54         va_end(params);
  55         MessageBox(0, buffer, "Hello", MB_OK|MB_ICONEXCLAMATION);
  56 }