Mercurial > sdl-ios-xcode

annotate include/SDL_assert.h @ 3700:076c12750bc4

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Fixed bug #743 The arrow keys and keypad arrow keys have almost the same scancodes!
author Sam Lantinga <slouken@libsdl.org>
date Wed, 27 Jan 2010 05:14:22 +0000
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: */