2 THE COMPUTER CODE CONTAINED HEREIN IS THE SOLE PROPERTY OF PARALLAX
3 SOFTWARE CORPORATION ("PARALLAX"). PARALLAX, IN DISTRIBUTING THE CODE TO
4 END-USERS, AND SUBJECT TO ALL OF THE TERMS AND CONDITIONS HEREIN, GRANTS A
5 ROYALTY-FREE, PERPETUAL LICENSE TO SUCH END-USERS FOR USE BY SUCH END-USERS
6 IN USING, DISPLAYING, AND CREATING DERIVATIVE WORKS THEREOF, SO LONG AS
7 SUCH USE, DISPLAY OR CREATION IS FOR NON-COMMERCIAL, ROYALTY OR REVENUE
8 FREE PURPOSES. IN NO EVENT SHALL THE END-USER USE THE COMPUTER CODE
9 CONTAINED HEREIN FOR REVENUE-BEARING PURPOSES. THE END-USER UNDERSTANDS
10 AND AGREES TO THE TERMS HEREIN AND ACCEPTS THE SAME BY USE OF THIS FILE.
11 COPYRIGHT 1993-1998 PARALLAX SOFTWARE CORPORATION. ALL RIGHTS RESERVED.
14 * $Source: /cvs/cvsroot/d2x/misc/error.c,v $
15 * $Revision: 1.1.1.1 $
17 * $Date: 2001-01-19 03:30:14 $
19 * Error handling/printing/exiting code
21 * $Log: not supported by cvs2svn $
22 * Revision 1.1.1.1 1999/06/14 22:13:48 donut
23 * Import of d1x 1.37 source.
25 * Revision 1.12 1994/12/07 18:49:39 matt
26 * error_init() can now take NULL as parm
28 * Revision 1.11 1994/11/29 15:42:07 matt
29 * Added newline before error message
31 * Revision 1.10 1994/11/27 23:20:39 matt
32 * Made changes for new mprintf calling convention
34 * Revision 1.9 1994/06/20 21:20:56 matt
35 * Allow NULL for warn func, to kill warnings
37 * Revision 1.8 1994/05/20 15:11:35 mike
38 * mprintf Warning message so you can actually see it.
40 * Revision 1.7 1994/02/10 18:02:38 matt
41 * Changed 'if DEBUG_ON' to 'ifndef NDEBUG'
43 * Revision 1.6 1993/10/17 18:19:10 matt
44 * If error_init() not called, Error() now prints the error message before
47 * Revision 1.5 1993/10/14 15:29:11 matt
48 * Added new function clear_warn_func()
50 * Revision 1.4 1993/10/08 16:17:19 matt
51 * Made Assert() call function _Assert(), rather to do 'if...' inline.
53 * Revision 1.3 1993/09/28 12:45:25 matt
54 * Fixed wrong print call, and made Warning() not append a CR to string
56 * Revision 1.2 1993/09/27 11:46:35 matt
57 * Added function set_warn_func()
59 * Revision 1.1 1993/09/23 20:17:33 matt
66 static char rcsid[] = "$Id: error.c,v 1.1.1.1 2001-01-19 03:30:14 bradleyb Exp $";
79 #define MAX_MSG_LEN 256
81 //edited 05/17/99 Matt Mueller added err_ prefix to prevent conflicts with statically linking SDL
82 int err_initialized=0;
85 char exit_message[MAX_MSG_LEN]="";
86 char warn_message[MAX_MSG_LEN];
88 //takes string in register, calls printf with string on stack
89 void warn_printf(char *s)
94 void (*warn_func)(char *s)=warn_printf;
96 //provides a function to call with warning messages
97 void set_warn_func(void (*f)(char *s))
102 //uninstall warning function - install default printf
103 void clear_warn_func(void (*f)(char *s))
105 warn_func = warn_printf;
108 void set_exit_message(char *fmt,...)
113 va_start(arglist,fmt);
114 len = vsprintf(exit_message,fmt,arglist);
117 if (len==-1 || len>MAX_MSG_LEN) Error("Message too long in set_exit_message (len=%d, max=%d)",len,MAX_MSG_LEN);
121 void _Assert(int expr,char *expr_text,char *filename,int linenum)
123 if (!(expr)) Error("Assertion failed: %s, file %s, line %d",expr_text,filename,linenum);
127 void print_exit_message(void)
130 con_printf(CON_CRITICAL, "%s\n",exit_message);
133 //terminates with error code 1, printing message
134 void Error(char *fmt,...)
138 strcpy(exit_message,"\nError: ");
140 va_start(arglist,fmt);
141 vsprintf(exit_message+strlen(exit_message),fmt,arglist);
144 con_printf(CON_CRITICAL, exit_message);
149 //print out warning message to user
150 void Warning(char *fmt,...)
154 if (warn_func == NULL)
157 strcpy(warn_message,"Warning: ");
159 va_start(arglist,fmt);
160 vsprintf(warn_message+strlen(warn_message),fmt,arglist);
163 con_printf(CON_URGENT, warn_message);
167 //initialize error handling system, and set default message. returns 0=ok
168 int error_init(char *fmt,...)
173 atexit(print_exit_message); //last thing at exit is print message
176 va_start(arglist,fmt);
177 len = vsprintf(exit_message,fmt,arglist);
179 if (len==-1 || len>MAX_MSG_LEN) Error("Message too long in error_init (len=%d, max=%d)",len,MAX_MSG_LEN);