Mercurial > sdl-ios-xcode

annotate include/SDL_assert.h @ 4730:6032ada8b9e5

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Adding GLTSF (somewhat based on SFML, no actual TSF code yet)
author dewyatt
date Tue, 25 May 2010 18:53:09 -0400
parents f7b03b6838cb
children d306007299ac
rev   line source
3647
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
1 /*
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
2 SDL - Simple DirectMedia Layer
3697
f7b03b6838cb Fixed bug #926
Sam Lantinga <slouken@libsdl.org>
parents: 3670
diff changeset
3 Copyright (C) 1997-2010 Sam Lantinga
3647
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
4
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
5 This library is free software; you can redistribute it and/or
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
6 modify it under the terms of the GNU Lesser General Public
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
7 License as published by the Free Software Foundation; either
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
8 version 2.1 of the License, or (at your option) any later version.
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
9
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
10 This library is distributed in the hope that it will be useful,
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
13 Lesser General Public License for more details.
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
14
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
15 You should have received a copy of the GNU Lesser General Public
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
16 License along with this library; if not, write to the Free Software
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
18
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
19 Sam Lantinga
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
20 slouken@libsdl.org
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
21 */
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
22
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
23 #ifndef _SDL_assert_h
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
24 #define _SDL_assert_h
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
25
3655
1cc7f0143c12 Moved SDL_FUNCTION out so it's always available, and added SDL_FILE and SDL_LINE
Sam Lantinga <slouken@libsdl.org>
parents: 3654
diff changeset
26 #include "SDL_config.h"
1cc7f0143c12 Moved SDL_FUNCTION out so it's always available, and added SDL_FILE and SDL_LINE
Sam Lantinga <slouken@libsdl.org>
parents: 3654
diff changeset
27
1cc7f0143c12 Moved SDL_FUNCTION out so it's always available, and added SDL_FILE and SDL_LINE
Sam Lantinga <slouken@libsdl.org>
parents: 3654
diff changeset
28 #include "begin_code.h"
1cc7f0143c12 Moved SDL_FUNCTION out so it's always available, and added SDL_FILE and SDL_LINE
Sam Lantinga <slouken@libsdl.org>
parents: 3654
diff changeset
29 /* Set up for C function definitions, even when using C++ */
1cc7f0143c12 Moved SDL_FUNCTION out so it's always available, and added SDL_FILE and SDL_LINE
Sam Lantinga <slouken@libsdl.org>
parents: 3654
diff changeset
30 #ifdef __cplusplus
1cc7f0143c12 Moved SDL_FUNCTION out so it's always available, and added SDL_FILE and SDL_LINE
Sam Lantinga <slouken@libsdl.org>
parents: 3654
diff changeset
31 /* *INDENT-OFF* */
1cc7f0143c12 Moved SDL_FUNCTION out so it's always available, and added SDL_FILE and SDL_LINE
Sam Lantinga <slouken@libsdl.org>
parents: 3654
diff changeset
32 extern "C" {
1cc7f0143c12 Moved SDL_FUNCTION out so it's always available, and added SDL_FILE and SDL_LINE
Sam Lantinga <slouken@libsdl.org>
parents: 3654
diff changeset
33 /* *INDENT-ON* */
1cc7f0143c12 Moved SDL_FUNCTION out so it's always available, and added SDL_FILE and SDL_LINE
Sam Lantinga <slouken@libsdl.org>
parents: 3654
diff changeset
34 #endif
1cc7f0143c12 Moved SDL_FUNCTION out so it's always available, and added SDL_FILE and SDL_LINE
Sam Lantinga <slouken@libsdl.org>
parents: 3654
diff changeset
35
3647
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
36 #ifndef SDL_ASSERT_LEVEL
3654
336f3df1578d Allow configure to override assertion settings, but by default this comes from the build optimization level.
Sam Lantinga <slouken@libsdl.org>
parents: 3653
diff changeset
37 #ifdef SDL_DEFAULT_ASSERT_LEVEL
336f3df1578d Allow configure to override assertion settings, but by default this comes from the build optimization level.
Sam Lantinga <slouken@libsdl.org>
parents: 3653
diff changeset
38 #define SDL_ASSERT_LEVEL SDL_DEFAULT_ASSERT_LEVEL
336f3df1578d Allow configure to override assertion settings, but by default this comes from the build optimization level.
Sam Lantinga <slouken@libsdl.org>
parents: 3653
diff changeset
39 #elif defined(_DEBUG) || defined(DEBUG) || \
336f3df1578d Allow configure to override assertion settings, but by default this comes from the build optimization level.
Sam Lantinga <slouken@libsdl.org>
parents: 3653
diff changeset
40 (defined(__GNUC__) && !defined(__OPTIMIZE__))
3653
1cd9f7117b98 Automatically figure out the appropriate assertion level
Sam Lantinga <slouken@libsdl.org>
parents: 3652
diff changeset
41 #define SDL_ASSERT_LEVEL 2
1cd9f7117b98 Automatically figure out the appropriate assertion level
Sam Lantinga <slouken@libsdl.org>
parents: 3652
diff changeset
42 #else
1cd9f7117b98 Automatically figure out the appropriate assertion level
Sam Lantinga <slouken@libsdl.org>
parents: 3652
diff changeset
43 #define SDL_ASSERT_LEVEL 1
3647
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
44 #endif
3653
1cd9f7117b98 Automatically figure out the appropriate assertion level
Sam Lantinga <slouken@libsdl.org>
parents: 3652
diff changeset
45 #endif /* SDL_ASSERT_LEVEL */
3647
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
46
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
47 /*
3655
1cc7f0143c12 Moved SDL_FUNCTION out so it's always available, and added SDL_FILE and SDL_LINE
Sam Lantinga <slouken@libsdl.org>
parents: 3654
diff changeset
48 These are macros and not first class functions so that the debugger breaks
1cc7f0143c12 Moved SDL_FUNCTION out so it's always available, and added SDL_FILE and SDL_LINE
Sam Lantinga <slouken@libsdl.org>
parents: 3654
diff changeset
49 on the assertion line and not in some random guts of SDL, and so each
3665
97114af2f8dc Fixed comment.
Ryan C. Gordon <icculus@icculus.org>
parents: 3655
diff changeset
50 assert can have unique static variables associated with it.
3655
1cc7f0143c12 Moved SDL_FUNCTION out so it's always available, and added SDL_FILE and SDL_LINE
Sam Lantinga <slouken@libsdl.org>
parents: 3654
diff changeset
51 */
1cc7f0143c12 Moved SDL_FUNCTION out so it's always available, and added SDL_FILE and SDL_LINE
Sam Lantinga <slouken@libsdl.org>
parents: 3654
diff changeset
52
1cc7f0143c12 Moved SDL_FUNCTION out so it's always available, and added SDL_FILE and SDL_LINE
Sam Lantinga <slouken@libsdl.org>
parents: 3654
diff changeset
53 #if (defined(_MSC_VER) && ((_M_IX86) || (_M_X64)))
1cc7f0143c12 Moved SDL_FUNCTION out so it's always available, and added SDL_FILE and SDL_LINE
Sam Lantinga <slouken@libsdl.org>
parents: 3654
diff changeset
54 #define SDL_TriggerBreakpoint() __asm { int 3 }
1cc7f0143c12 Moved SDL_FUNCTION out so it's always available, and added SDL_FILE and SDL_LINE
Sam Lantinga <slouken@libsdl.org>
parents: 3654
diff changeset
55 #elif (defined(__GNUC__) && ((__i386__) || (__x86_64__)))
1cc7f0143c12 Moved SDL_FUNCTION out so it's always available, and added SDL_FILE and SDL_LINE
Sam Lantinga <slouken@libsdl.org>
parents: 3654
diff changeset
56 #define SDL_TriggerBreakpoint() __asm__ __volatile__ ( "int $3\n\t" )
1cc7f0143c12 Moved SDL_FUNCTION out so it's always available, and added SDL_FILE and SDL_LINE
Sam Lantinga <slouken@libsdl.org>
parents: 3654
diff changeset
57 #elif defined(HAVE_SIGNAL_H)
1cc7f0143c12 Moved SDL_FUNCTION out so it's always available, and added SDL_FILE and SDL_LINE
Sam Lantinga <slouken@libsdl.org>
parents: 3654
diff changeset
58 #include <signal.h>
1cc7f0143c12 Moved SDL_FUNCTION out so it's always available, and added SDL_FILE and SDL_LINE
Sam Lantinga <slouken@libsdl.org>
parents: 3654
diff changeset
59 #define SDL_TriggerBreakpoint() raise(SIGTRAP)
1cc7f0143c12 Moved SDL_FUNCTION out so it's always available, and added SDL_FILE and SDL_LINE
Sam Lantinga <slouken@libsdl.org>
parents: 3654
diff changeset
60 #else
1cc7f0143c12 Moved SDL_FUNCTION out so it's always available, and added SDL_FILE and SDL_LINE
Sam Lantinga <slouken@libsdl.org>
parents: 3654
diff changeset
61 /* How do we trigger breakpoints on this platform? */
1cc7f0143c12 Moved SDL_FUNCTION out so it's always available, and added SDL_FILE and SDL_LINE
Sam Lantinga <slouken@libsdl.org>
parents: 3654
diff changeset
62 #define SDL_TriggerBreakpoint()
1cc7f0143c12 Moved SDL_FUNCTION out so it's always available, and added SDL_FILE and SDL_LINE
Sam Lantinga <slouken@libsdl.org>
parents: 3654
diff changeset
63 #endif
1cc7f0143c12 Moved SDL_FUNCTION out so it's always available, and added SDL_FILE and SDL_LINE
Sam Lantinga <slouken@libsdl.org>
parents: 3654
diff changeset
64
1cc7f0143c12 Moved SDL_FUNCTION out so it's always available, and added SDL_FILE and SDL_LINE
Sam Lantinga <slouken@libsdl.org>
parents: 3654
diff changeset
65 #if (__STDC_VERSION__ >= 199901L) /* C99 supports __func__ as a standard. */
1cc7f0143c12 Moved SDL_FUNCTION out so it's always available, and added SDL_FILE and SDL_LINE
Sam Lantinga <slouken@libsdl.org>
parents: 3654
diff changeset
66 # define SDL_FUNCTION __func__
1cc7f0143c12 Moved SDL_FUNCTION out so it's always available, and added SDL_FILE and SDL_LINE
Sam Lantinga <slouken@libsdl.org>
parents: 3654
diff changeset
67 #elif ((__GNUC__ >= 2) || defined(_MSC_VER))
1cc7f0143c12 Moved SDL_FUNCTION out so it's always available, and added SDL_FILE and SDL_LINE
Sam Lantinga <slouken@libsdl.org>
parents: 3654
diff changeset
68 # define SDL_FUNCTION __FUNCTION__
1cc7f0143c12 Moved SDL_FUNCTION out so it's always available, and added SDL_FILE and SDL_LINE
Sam Lantinga <slouken@libsdl.org>
parents: 3654
diff changeset
69 #else
1cc7f0143c12 Moved SDL_FUNCTION out so it's always available, and added SDL_FILE and SDL_LINE
Sam Lantinga <slouken@libsdl.org>
parents: 3654
diff changeset
70 # define SDL_FUNCTION "???"
1cc7f0143c12 Moved SDL_FUNCTION out so it's always available, and added SDL_FILE and SDL_LINE
Sam Lantinga <slouken@libsdl.org>
parents: 3654
diff changeset
71 #endif
1cc7f0143c12 Moved SDL_FUNCTION out so it's always available, and added SDL_FILE and SDL_LINE
Sam Lantinga <slouken@libsdl.org>
parents: 3654
diff changeset
72 #define SDL_FILE __FILE__
1cc7f0143c12 Moved SDL_FUNCTION out so it's always available, and added SDL_FILE and SDL_LINE
Sam Lantinga <slouken@libsdl.org>
parents: 3654
diff changeset
73 #define SDL_LINE __LINE__
1cc7f0143c12 Moved SDL_FUNCTION out so it's always available, and added SDL_FILE and SDL_LINE
Sam Lantinga <slouken@libsdl.org>
parents: 3654
diff changeset
74
1cc7f0143c12 Moved SDL_FUNCTION out so it's always available, and added SDL_FILE and SDL_LINE
Sam Lantinga <slouken@libsdl.org>
parents: 3654
diff changeset
75 /*
3647
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
76 sizeof (x) makes the compiler still parse the expression even without
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
77 assertions enabled, so the code is always checked at compile time, but
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
78 doesn't actually generate code for it, so there are no side effects or
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
79 expensive checks at run time, just the constant size of what x WOULD be,
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
80 which presumably gets optimized out as unused.
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
81 This also solves the problem of...
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
82
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
83 int somevalue = blah();
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
84 SDL_assert(somevalue == 1);
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
85
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
86 ...which would cause compiles to complain that somevalue is unused if we
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
87 disable assertions.
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
88 */
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
89
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
90 #define SDL_disabled_assert(condition) \
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
91 do { (void) sizeof ((condition)); } while (0)
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
92
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
93 #if (SDL_ASSERT_LEVEL > 0)
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
94
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
95 typedef enum
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
96 {
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
97 SDL_ASSERTION_RETRY, /**< Retry the assert immediately. */
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
98 SDL_ASSERTION_BREAK, /**< Make the debugger trigger a breakpoint. */
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
99 SDL_ASSERTION_ABORT, /**< Terminate the program. */
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
100 SDL_ASSERTION_IGNORE, /**< Ignore the assert. */
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
101 SDL_ASSERTION_ALWAYS_IGNORE, /**< Ignore the assert from now on. */
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
102 } SDL_assert_state;
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
103
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
104 typedef struct SDL_assert_data
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
105 {
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
106 int always_ignore;
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
107 unsigned int trigger_count;
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
108 const char *condition;
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
109 const char *filename;
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
110 int linenum;
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
111 const char *function;
3670
62b6a5b99918 Clean up assertion API for public use.
Ryan C. Gordon <icculus@icculus.org>
parents: 3668
diff changeset
112 const struct SDL_assert_data *next;
3647
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
113 } SDL_assert_data;
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
114
3668
6952d2b783e6 Friendly warning comment.
Ryan C. Gordon <icculus@icculus.org>
parents: 3666
diff changeset
115 /* Never call this directly. Use the SDL_assert* macros. */
3655
1cc7f0143c12 Moved SDL_FUNCTION out so it's always available, and added SDL_FILE and SDL_LINE
Sam Lantinga <slouken@libsdl.org>
parents: 3654
diff changeset
116 extern DECLSPEC SDL_assert_state SDLCALL SDL_ReportAssertion(SDL_assert_data *,
1cc7f0143c12 Moved SDL_FUNCTION out so it's always available, and added SDL_FILE and SDL_LINE
Sam Lantinga <slouken@libsdl.org>
parents: 3654
diff changeset
117 const char *,
1cc7f0143c12 Moved SDL_FUNCTION out so it's always available, and added SDL_FILE and SDL_LINE
Sam Lantinga <slouken@libsdl.org>
parents: 3654
diff changeset
118 const char *, int);
3647
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
119
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
120 /* the do {} while(0) avoids dangling else problems:
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
121 if (x) SDL_assert(y); else blah();
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
122 ... without the do/while, the "else" could attach to this macro's "if".
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
123 We try to handle just the minimum we need here in a macro...the loop,
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
124 the static vars, and break points. The heavy lifting is handled in
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
125 SDL_ReportAssertion(), in SDL_assert.c.
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
126 */
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
127 #define SDL_enabled_assert(condition) \
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
128 do { \
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
129 while ( !(condition) ) { \
3649
1e74d7984d0b The config sets the default assertion level so people can override it for their own use in application code.
Sam Lantinga <slouken@libsdl.org>
parents: 3647
diff changeset
130 static struct SDL_assert_data assert_data = { \
3655
1cc7f0143c12 Moved SDL_FUNCTION out so it's always available, and added SDL_FILE and SDL_LINE
Sam Lantinga <slouken@libsdl.org>
parents: 3654
diff changeset
131 0, 0, #condition, 0, 0, 0, 0 \
3647
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
132 }; \
3649
1e74d7984d0b The config sets the default assertion level so people can override it for their own use in application code.
Sam Lantinga <slouken@libsdl.org>
parents: 3647
diff changeset
133 const SDL_assert_state state = SDL_ReportAssertion(&assert_data, \
3647
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
134 SDL_FUNCTION, \
3655
1cc7f0143c12 Moved SDL_FUNCTION out so it's always available, and added SDL_FILE and SDL_LINE
Sam Lantinga <slouken@libsdl.org>
parents: 3654
diff changeset
135 SDL_FILE, \
1cc7f0143c12 Moved SDL_FUNCTION out so it's always available, and added SDL_FILE and SDL_LINE
Sam Lantinga <slouken@libsdl.org>
parents: 3654
diff changeset
136 SDL_LINE); \
3647
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
137 if (state == SDL_ASSERTION_RETRY) { \
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
138 continue; /* go again. */ \
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
139 } else if (state == SDL_ASSERTION_BREAK) { \
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
140 SDL_TriggerBreakpoint(); \
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
141 } \
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
142 break; /* not retrying. */ \
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
143 } \
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
144 } while (0)
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
145
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
146 #endif /* enabled assertions support code */
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
147
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
148 /* Enable various levels of assertions. */
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
149 #if SDL_ASSERT_LEVEL == 0 /* assertions disabled */
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
150 # define SDL_assert(condition) SDL_disabled_assert(condition)
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
151 # define SDL_assert_release(condition) SDL_disabled_assert(condition)
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
152 # define SDL_assert_paranoid(condition) SDL_disabled_assert(condition)
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
153 #elif SDL_ASSERT_LEVEL == 1 /* release settings. */
3652
dbd6a29e4b77 Fixed release level assertions
Sam Lantinga <slouken@libsdl.org>
parents: 3650
diff changeset
154 # define SDL_assert(condition) SDL_disabled_assert(condition)
3647
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
155 # define SDL_assert_release(condition) SDL_enabled_assert(condition)
3652
dbd6a29e4b77 Fixed release level assertions
Sam Lantinga <slouken@libsdl.org>
parents: 3650
diff changeset
156 # define SDL_assert_paranoid(condition) SDL_disabled_assert(condition)
3647
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
157 #elif SDL_ASSERT_LEVEL == 2 /* normal settings. */
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
158 # define SDL_assert(condition) SDL_enabled_assert(condition)
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
159 # define SDL_assert_release(condition) SDL_enabled_assert(condition)
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
160 # define SDL_assert_paranoid(condition) SDL_disabled_assert(condition)
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
161 #elif SDL_ASSERT_LEVEL == 3 /* paranoid settings. */
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
162 # define SDL_assert(condition) SDL_enabled_assert(condition)
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
163 # define SDL_assert_release(condition) SDL_enabled_assert(condition)
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
164 # define SDL_assert_paranoid(condition) SDL_enabled_assert(condition)
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
165 #else
3655
1cc7f0143c12 Moved SDL_FUNCTION out so it's always available, and added SDL_FILE and SDL_LINE
Sam Lantinga <slouken@libsdl.org>
parents: 3654
diff changeset
166 # error Unknown assertion level.
3647
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
167 #endif
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
168
3670
62b6a5b99918 Clean up assertion API for public use.
Ryan C. Gordon <icculus@icculus.org>
parents: 3668
diff changeset
169
62b6a5b99918 Clean up assertion API for public use.
Ryan C. Gordon <icculus@icculus.org>
parents: 3668
diff changeset
170 typedef SDL_assert_state (SDLCALL *SDL_AssertionHandler)(
62b6a5b99918 Clean up assertion API for public use.
Ryan C. Gordon <icculus@icculus.org>
parents: 3668
diff changeset
171 const SDL_assert_data *, void *userdata);
62b6a5b99918 Clean up assertion API for public use.
Ryan C. Gordon <icculus@icculus.org>
parents: 3668
diff changeset
172
62b6a5b99918 Clean up assertion API for public use.
Ryan C. Gordon <icculus@icculus.org>
parents: 3668
diff changeset
173 /**
62b6a5b99918 Clean up assertion API for public use.
Ryan C. Gordon <icculus@icculus.org>
parents: 3668
diff changeset
174 * \brief Set an application-defined assertion handler.
62b6a5b99918 Clean up assertion API for public use.
Ryan C. Gordon <icculus@icculus.org>
parents: 3668
diff changeset
175 *
62b6a5b99918 Clean up assertion API for public use.
Ryan C. Gordon <icculus@icculus.org>
parents: 3668
diff changeset
176 * This allows an app to show its own assertion UI and/or force the
62b6a5b99918 Clean up assertion API for public use.
Ryan C. Gordon <icculus@icculus.org>
parents: 3668
diff changeset
177 * response to an assertion failure. If the app doesn't provide this, SDL
62b6a5b99918 Clean up assertion API for public use.
Ryan C. Gordon <icculus@icculus.org>
parents: 3668
diff changeset
178 * will try to do the right thing, popping up a system-specific GUI dialog,
62b6a5b99918 Clean up assertion API for public use.
Ryan C. Gordon <icculus@icculus.org>
parents: 3668
diff changeset
179 * and probably minimizing any fullscreen windows.
62b6a5b99918 Clean up assertion API for public use.
Ryan C. Gordon <icculus@icculus.org>
parents: 3668
diff changeset
180 *
62b6a5b99918 Clean up assertion API for public use.
Ryan C. Gordon <icculus@icculus.org>
parents: 3668
diff changeset
181 * This callback may fire from any thread, but it runs wrapped in a mutex, so
62b6a5b99918 Clean up assertion API for public use.
Ryan C. Gordon <icculus@icculus.org>
parents: 3668
diff changeset
182 * it will only fire from one thread at a time.
62b6a5b99918 Clean up assertion API for public use.
Ryan C. Gordon <icculus@icculus.org>
parents: 3668
diff changeset
183 *
62b6a5b99918 Clean up assertion API for public use.
Ryan C. Gordon <icculus@icculus.org>
parents: 3668
diff changeset
184 * Setting the callback to NULL restores SDL's original internal handler.
62b6a5b99918 Clean up assertion API for public use.
Ryan C. Gordon <icculus@icculus.org>
parents: 3668
diff changeset
185 *
62b6a5b99918 Clean up assertion API for public use.
Ryan C. Gordon <icculus@icculus.org>
parents: 3668
diff changeset
186 * This callback is NOT reset to SDL's internal handler upon SDL_Quit()!
62b6a5b99918 Clean up assertion API for public use.
Ryan C. Gordon <icculus@icculus.org>
parents: 3668
diff changeset
187 *
62b6a5b99918 Clean up assertion API for public use.
Ryan C. Gordon <icculus@icculus.org>
parents: 3668
diff changeset
188 * \return SDL_assert_state value of how to handle the assertion failure.
62b6a5b99918 Clean up assertion API for public use.
Ryan C. Gordon <icculus@icculus.org>
parents: 3668
diff changeset
189 *
62b6a5b99918 Clean up assertion API for public use.
Ryan C. Gordon <icculus@icculus.org>
parents: 3668
diff changeset
190 * \param handler Callback function, called when an assertion fails.
62b6a5b99918 Clean up assertion API for public use.
Ryan C. Gordon <icculus@icculus.org>
parents: 3668
diff changeset
191 * \param userdata A pointer passed to the callback as-is.
62b6a5b99918 Clean up assertion API for public use.
Ryan C. Gordon <icculus@icculus.org>
parents: 3668
diff changeset
192 */
62b6a5b99918 Clean up assertion API for public use.
Ryan C. Gordon <icculus@icculus.org>
parents: 3668
diff changeset
193 extern DECLSPEC void SDLCALL SDL_SetAssertionHandler(
62b6a5b99918 Clean up assertion API for public use.
Ryan C. Gordon <icculus@icculus.org>
parents: 3668
diff changeset
194 SDL_AssertionHandler handler,
62b6a5b99918 Clean up assertion API for public use.
Ryan C. Gordon <icculus@icculus.org>
parents: 3668
diff changeset
195 void *userdata);
62b6a5b99918 Clean up assertion API for public use.
Ryan C. Gordon <icculus@icculus.org>
parents: 3668
diff changeset
196
62b6a5b99918 Clean up assertion API for public use.
Ryan C. Gordon <icculus@icculus.org>
parents: 3668
diff changeset
197 /**
62b6a5b99918 Clean up assertion API for public use.
Ryan C. Gordon <icculus@icculus.org>
parents: 3668
diff changeset
198 * \brief Get a list of all assertion failures.
62b6a5b99918 Clean up assertion API for public use.
Ryan C. Gordon <icculus@icculus.org>
parents: 3668
diff changeset
199 *
62b6a5b99918 Clean up assertion API for public use.
Ryan C. Gordon <icculus@icculus.org>
parents: 3668
diff changeset
200 * Get all assertions triggered since last call to SDL_ResetAssertionReport(),
62b6a5b99918 Clean up assertion API for public use.
Ryan C. Gordon <icculus@icculus.org>
parents: 3668
diff changeset
201 * or the start of the program.
62b6a5b99918 Clean up assertion API for public use.
Ryan C. Gordon <icculus@icculus.org>
parents: 3668
diff changeset
202 *
62b6a5b99918 Clean up assertion API for public use.
Ryan C. Gordon <icculus@icculus.org>
parents: 3668
diff changeset
203 * The proper way to examine this data looks something like this:
62b6a5b99918 Clean up assertion API for public use.
Ryan C. Gordon <icculus@icculus.org>
parents: 3668
diff changeset
204 *
62b6a5b99918 Clean up assertion API for public use.
Ryan C. Gordon <icculus@icculus.org>
parents: 3668
diff changeset
205 * <code>
62b6a5b99918 Clean up assertion API for public use.
Ryan C. Gordon <icculus@icculus.org>
parents: 3668
diff changeset
206 * const SDL_assert_data *item = SDL_GetAssertionReport();
62b6a5b99918 Clean up assertion API for public use.
Ryan C. Gordon <icculus@icculus.org>
parents: 3668
diff changeset
207 * while (item->condition) {
62b6a5b99918 Clean up assertion API for public use.
Ryan C. Gordon <icculus@icculus.org>
parents: 3668
diff changeset
208 * printf("'%s', %s (%s:%d), triggered %u times, always ignore: %s.\n",
62b6a5b99918 Clean up assertion API for public use.
Ryan C. Gordon <icculus@icculus.org>
parents: 3668
diff changeset
209 * item->condition, item->function, item->filename,
62b6a5b99918 Clean up assertion API for public use.
Ryan C. Gordon <icculus@icculus.org>
parents: 3668
diff changeset
210 * item->linenum, item->trigger_count,
62b6a5b99918 Clean up assertion API for public use.
Ryan C. Gordon <icculus@icculus.org>
parents: 3668
diff changeset
211 * item->always_ignore ? "yes" : "no");
62b6a5b99918 Clean up assertion API for public use.
Ryan C. Gordon <icculus@icculus.org>
parents: 3668
diff changeset
212 * item = item->next;
62b6a5b99918 Clean up assertion API for public use.
Ryan C. Gordon <icculus@icculus.org>
parents: 3668
diff changeset
213 * }
62b6a5b99918 Clean up assertion API for public use.
Ryan C. Gordon <icculus@icculus.org>
parents: 3668
diff changeset
214 * </code>
62b6a5b99918 Clean up assertion API for public use.
Ryan C. Gordon <icculus@icculus.org>
parents: 3668
diff changeset
215 *
62b6a5b99918 Clean up assertion API for public use.
Ryan C. Gordon <icculus@icculus.org>
parents: 3668
diff changeset
216 * \return List of all assertions. This never returns NULL,
62b6a5b99918 Clean up assertion API for public use.
Ryan C. Gordon <icculus@icculus.org>
parents: 3668
diff changeset
217 * even if there are no items.
62b6a5b99918 Clean up assertion API for public use.
Ryan C. Gordon <icculus@icculus.org>
parents: 3668
diff changeset
218 * \sa SDL_ResetAssertionReport
62b6a5b99918 Clean up assertion API for public use.
Ryan C. Gordon <icculus@icculus.org>
parents: 3668
diff changeset
219 */
62b6a5b99918 Clean up assertion API for public use.
Ryan C. Gordon <icculus@icculus.org>
parents: 3668
diff changeset
220 extern DECLSPEC const SDL_assert_data * SDLCALL SDL_GetAssertionReport(void);
62b6a5b99918 Clean up assertion API for public use.
Ryan C. Gordon <icculus@icculus.org>
parents: 3668
diff changeset
221
62b6a5b99918 Clean up assertion API for public use.
Ryan C. Gordon <icculus@icculus.org>
parents: 3668
diff changeset
222 /**
62b6a5b99918 Clean up assertion API for public use.
Ryan C. Gordon <icculus@icculus.org>
parents: 3668
diff changeset
223 * \brief Reset the list of all assertion failures.
62b6a5b99918 Clean up assertion API for public use.
Ryan C. Gordon <icculus@icculus.org>
parents: 3668
diff changeset
224 *
62b6a5b99918 Clean up assertion API for public use.
Ryan C. Gordon <icculus@icculus.org>
parents: 3668
diff changeset
225 * Reset list of all assertions triggered.
62b6a5b99918 Clean up assertion API for public use.
Ryan C. Gordon <icculus@icculus.org>
parents: 3668
diff changeset
226 *
62b6a5b99918 Clean up assertion API for public use.
Ryan C. Gordon <icculus@icculus.org>
parents: 3668
diff changeset
227 * \sa SDL_GetAssertionReport
62b6a5b99918 Clean up assertion API for public use.
Ryan C. Gordon <icculus@icculus.org>
parents: 3668
diff changeset
228 */
62b6a5b99918 Clean up assertion API for public use.
Ryan C. Gordon <icculus@icculus.org>
parents: 3668
diff changeset
229 extern DECLSPEC void SDLCALL SDL_ResetAssertionReport(void);
62b6a5b99918 Clean up assertion API for public use.
Ryan C. Gordon <icculus@icculus.org>
parents: 3668
diff changeset
230
3655
1cc7f0143c12 Moved SDL_FUNCTION out so it's always available, and added SDL_FILE and SDL_LINE
Sam Lantinga <slouken@libsdl.org>
parents: 3654
diff changeset
231 /* Ends C function definitions when using C++ */
1cc7f0143c12 Moved SDL_FUNCTION out so it's always available, and added SDL_FILE and SDL_LINE
Sam Lantinga <slouken@libsdl.org>
parents: 3654
diff changeset
232 #ifdef __cplusplus
1cc7f0143c12 Moved SDL_FUNCTION out so it's always available, and added SDL_FILE and SDL_LINE
Sam Lantinga <slouken@libsdl.org>
parents: 3654
diff changeset
233 /* *INDENT-OFF* */
1cc7f0143c12 Moved SDL_FUNCTION out so it's always available, and added SDL_FILE and SDL_LINE
Sam Lantinga <slouken@libsdl.org>
parents: 3654
diff changeset
234 }
1cc7f0143c12 Moved SDL_FUNCTION out so it's always available, and added SDL_FILE and SDL_LINE
Sam Lantinga <slouken@libsdl.org>
parents: 3654
diff changeset
235 /* *INDENT-ON* */
1cc7f0143c12 Moved SDL_FUNCTION out so it's always available, and added SDL_FILE and SDL_LINE
Sam Lantinga <slouken@libsdl.org>
parents: 3654
diff changeset
236 #endif
1cc7f0143c12 Moved SDL_FUNCTION out so it's always available, and added SDL_FILE and SDL_LINE
Sam Lantinga <slouken@libsdl.org>
parents: 3654
diff changeset
237 #include "close_code.h"
1cc7f0143c12 Moved SDL_FUNCTION out so it's always available, and added SDL_FILE and SDL_LINE
Sam Lantinga <slouken@libsdl.org>
parents: 3654
diff changeset
238
3647
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
239 #endif /* _SDL_assert_h */
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
240
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
241 /* vi: set ts=4 sw=4 expandtab: */