Dogcows Code - chaz/thecheat/blob - ChazLog.m

   1
   2 /*
   3  * The Cheat - The legendary universal game trainer for Mac OS X.
   4  * http://www.brokenzipper.com/trac/wiki/TheCheat
   5  *
   6  * Copyright (c) 2003-2011, Charles McGarvey et al.
   7  *
   8  * Distributable under the terms and conditions of the 2-clause BSD
   9  * license; see the file COPYING for the legal text of the license.
  10  */
  11
  12
  13 #include "ChazLog.h"
  14
  15 #include "stdio.h"
  16 #include "stdlib.h"
  17
  18
  19 // PrivateAPI
  20 void static _ChazPrint( FILE *output, NSString *format, va_list args );
  21
  22
  23 // Static Globals
  24 BOOL static _gLogEnabled = YES;
  25 FILE static *_gLogFile = stdout;
  26 FILE static *_gDebugFile = NULL;
  27
  28
  29 #pragma mark -
  30 #pragma mark Setup
  31 /*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%*/
  32
  33 void ChazLogEnable()
  34 {
  35         _gLogEnabled = YES;
  36 }
  37
  38 void ChazLogDisable()
  39 {
  40         if ( _gLogFile != _gDebugFile ) {
  41                 _gLogEnabled = NO;
  42         }
  43 }
  44
  45
  46 void ChazDebugSetup()
  47 {
  48         NSString *filepath = ChazDebugLogPath();
  49         FILE *file;
  50
  51         // look for debug file
  52         file = fopen( [filepath lossyCString], "r+" );
  53
  54         if ( !file ) {
  55                 // there is no debug file or we don't have permissions
  56                 return;
  57         }
  58
  59         fclose( file );
  60
  61         _gDebugFile = fopen( [filepath lossyCString], "w" );
  62
  63         ChazDebug( @"Debug log found (obviously).  Entering debug mode." );
  64 }
  65
  66 void ChazDebugCleanup()
  67 {
  68         if ( _gDebugFile ) {
  69                 ChazDebug( @"Debug log cleaned up." );
  70
  71                 fclose ( _gDebugFile );
  72         }
  73 }
  74
  75
  76 #pragma mark -
  77 #pragma mark Logs
  78 /*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%*/
  79
  80 void ChazLog( NSString *format, ... )
  81 {
  82         va_list args;
  83
  84         if ( !_gLogEnabled ) {
  85                 return;
  86         }
  87
  88     va_start( args, format );
  89         // print log to standard i/o
  90         _ChazPrint( _gLogFile, format, args );
  91     va_end( args );
  92 }
  93
  94 void ChazDebug( NSString *format, ... )
  95 {
  96         va_list args;
  97
  98         if ( !_gDebugFile ) {
  99                 return;
 100         }
 101
 102     va_start( args, format );
 103         // print log to the debug file
 104         _ChazPrint( _gDebugFile, format, args );
 105     va_end( args );
 106 }
 107
 108
 109 #pragma mark -
 110 #pragma mark Miscellaneous
 111 /*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%*/
 112
 113 BOOL ChazIsDebugging()
 114 {
 115         return (_gDebugFile != NULL);
 116 }
 117
 118 NSString *ChazDebugLogPath()
 119 {
 120         // get filepath
 121         return [[[[NSBundle mainBundle] bundlePath] stringByDeletingLastPathComponent] stringByAppendingPathComponent:@"debug.txt"];
 122 }
 123
 124
 125 void ChazMapLogToDebug()
 126 {
 127         if ( _gDebugFile ) {
 128                 _gLogEnabled = YES;
 129                 _gLogFile = _gDebugFile;
 130         }
 131 }
 132
 133
 134 void ChazOpenDebugLog()
 135 {
 136         [[NSWorkspace sharedWorkspace] openFile:ChazDebugLogPath()];
 137 }
 138
 139
 140 #pragma mark -
 141 #pragma mark PrivateAPI
 142 /*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%*/
 143
 144 void _ChazPrint( FILE *output, NSString *format, va_list args )
 145 {
 146         NSString *string;
 147
 148         // get formatted string
 149     string = [[NSString alloc] initWithFormat:format arguments:args];
 150
 151         fprintf( output, "[%s] %s\n", [[[NSDate date] descriptionWithCalendarFormat:@"%Y-%m-%d %H:%M:%S.%F"
 152                                                                                                                                            timeZone:nil
 153                                                                                                                                                  locale:nil] lossyCString], [string lossyCString] );
 154         fflush( output );
 155
 156         [string release];
 157 }
 158
 159