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annotate src/SDL_assert.c @ 3647:c5925cd41955

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First pass at Ryan's assertion code, minor tweaks to come.
author Sam Lantinga <slouken@libsdl.org>
date Wed, 13 Jan 2010 06:47:17 +0000
parents
children a9d830c05998
rev   line source
3647
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2009 Sam Lantinga
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4
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5 This library is free software; you can redistribute it and/or
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6 modify it under the terms of the GNU Lesser General Public
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7 License as published by the Free Software Foundation; either
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8 version 2.1 of the License, or (at your option) any later version.
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9
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10 This library is distributed in the hope that it will be useful,
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 Lesser General Public License for more details.
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14
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15 You should have received a copy of the GNU Lesser General Public
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16 License along with this library; if not, write to the Free Software
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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18
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19 Sam Lantinga
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20 slouken@libsdl.org
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21 */
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22
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23 #include "SDL_assert.h"
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24 #include "SDL.h"
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25
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26 #if (SDL_ASSERT_LEVEL > 0)
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27
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28 #ifdef _WINDOWS
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29 #define WIN32_LEAN_AND_MEAN 1
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30 #include <windows.h>
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31 #else /* fprintf, _exit(), etc. */
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32 #include <stdio.h>
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33 #include <stdlib.h>
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34 #endif
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35
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36 /* We can keep all triggered assertions in a singly-linked list so we can
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37 * generate a report later.
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38 */
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39 #if !SDL_ASSERTION_REPORT_DISABLED
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40 static SDL_assert_data assertion_list_terminator = { 0, 0, 0, 0, 0, 0, 0 };
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41 static SDL_assert_data *triggered_assertions = &assertion_list_terminator;
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42 #endif
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43
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44 static void
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45 debug_print(const char *fmt, ...)
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46 //#ifdef __GNUC__
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47 //__attribute__((format (printf, 1, 2)))
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48 //#endif
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49 {
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50 #ifdef _WINDOWS
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51 /* Format into a buffer for OutputDebugStringA(). */
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52 char buf[1024];
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53 char *startptr;
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54 char *ptr;
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55 int len;
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56 va_list ap;
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57 va_start(ap, fmt);
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58 len = (int) SDL_vsnprintf(buf, sizeof (buf), fmt, ap);
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59 va_end(ap);
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60
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61 /* Visual C's vsnprintf() may not null-terminate the buffer. */
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62 if ((len >= sizeof (buf)) || (len < 0)) {
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63 buf[sizeof (buf) - 1] = '\0';
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64 }
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65
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66 /* Write it, sorting out the Unix newlines... */
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67 startptr = buf;
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68 for (ptr = startptr; *ptr; ptr++) {
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69 if (*ptr == '\n') {
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70 *ptr = '\0';
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71 OutputDebugStringA(startptr);
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72 OutputDebugStringA("\r\n");
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73 startptr = ptr+1;
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74 }
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75 }
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76
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77 /* catch that last piece if it didn't have a newline... */
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78 if (startptr != ptr) {
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79 OutputDebugStringA(startptr);
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80 }
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81 #else
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82 /* Unix has it easy. Just dump it to stderr. */
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83 va_list ap;
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84 va_start(ap, fmt);
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85 fprintf(stderr, fmt, ap);
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86 va_end(ap);
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87 fflush(stderr);
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88 #endif
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89 }
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90
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91
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92 #ifdef _WINDOWS
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93 static SDL_assert_state SDL_Windows_AssertChoice = SDL_ASSERTION_ABORT;
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94 static const SDL_assert_data *SDL_Windows_AssertData = NULL;
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95
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96 static LRESULT CALLBACK
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97 SDL_Assertion_WndProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
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98 {
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99 switch (msg)
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100 {
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101 case WM_CREATE:
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102 {
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103 /* !!! FIXME: all this code stinks. */
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104 const SDL_assert_data *data = SDL_Windows_AssertData;
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105 char buf[1024];
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106 const int w = 100;
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107 const int h = 25;
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108 const int gap = 10;
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109 int x = gap;
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110 int y = 50;
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111 int len;
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112 int i;
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113 static const struct {
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114 const char *name;
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115 SDL_assert_state state;
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116 } buttons[] = {
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117 {"Abort", SDL_ASSERTION_ABORT },
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118 {"Break", SDL_ASSERTION_BREAK },
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119 {"Retry", SDL_ASSERTION_RETRY },
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120 {"Ignore", SDL_ASSERTION_IGNORE },
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121 {"Always Ignore", SDL_ASSERTION_ALWAYS_IGNORE },
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122 };
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123
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124 len = (int) SDL_snprintf(buf, sizeof (buf),
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125 "Assertion failure at %s (%s:%d), triggered %u time%s:\r\n '%s'",
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126 data->function, data->filename, data->linenum,
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127 data->trigger_count, (data->trigger_count == 1) ? "" : "s",
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128 data->condition);
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129 if ((len < 0) || (len >= sizeof (buf))) {
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130 buf[sizeof (buf) - 1] = '\0';
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131 }
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132
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133 CreateWindowA("STATIC", buf,
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134 WS_VISIBLE | WS_CHILD | SS_LEFT,
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135 x, y, 550, 100,
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136 hwnd, (HMENU) 1, NULL, NULL);
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137 y += 110;
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138
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139 for (i = 0; i < (sizeof (buttons) / sizeof (buttons[0])); i++) {
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
140 CreateWindowA("BUTTON", buttons[i].name,
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
141 WS_VISIBLE | WS_CHILD,
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
142 x, y, w, h,
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
143 hwnd, (HMENU) buttons[i].state, NULL, NULL);
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parents:
diff changeset
144 x += w + gap;
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parents:
diff changeset
145 }
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
146 break;
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
147 }
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parents:
diff changeset
148
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
149 case WM_COMMAND:
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parents:
diff changeset
150 SDL_Windows_AssertChoice = ((SDL_assert_state) (LOWORD(wParam)));
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parents:
diff changeset
151 SDL_Windows_AssertData = NULL;
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parents:
diff changeset
152 break;
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parents:
diff changeset
153
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
154 case WM_DESTROY:
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
155 SDL_Windows_AssertData = NULL;
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parents:
diff changeset
156 break;
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parents:
diff changeset
157 }
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parents:
diff changeset
158
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diff changeset
159 return DefWindowProc(hwnd, msg, wParam, lParam);
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parents:
diff changeset
160 }
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parents:
diff changeset
161
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diff changeset
162 static SDL_assert_state
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diff changeset
163 SDL_PromptAssertion_windows(const SDL_assert_data *data)
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parents:
diff changeset
164 {
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parents:
diff changeset
165 HINSTANCE hInstance = 0; /* !!! FIXME? */
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parents:
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166 HWND hwnd;
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parents:
diff changeset
167 MSG msg;
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parents:
diff changeset
168 WNDCLASS wc = {0};
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parents:
diff changeset
169
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diff changeset
170 SDL_Windows_AssertChoice = SDL_ASSERTION_ABORT;
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parents:
diff changeset
171 SDL_Windows_AssertData = data;
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parents:
diff changeset
172
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diff changeset
173 wc.lpszClassName = TEXT("SDL_assert");
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
174 wc.hInstance = hInstance ;
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parents:
diff changeset
175 wc.hbrBackground = GetSysColorBrush(COLOR_3DFACE);
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parents:
diff changeset
176 wc.lpfnWndProc = SDL_Assertion_WndProc;
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parents:
diff changeset
177 wc.hCursor = LoadCursor(0, IDC_ARROW);
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parents:
diff changeset
178
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
179 RegisterClass(&wc);
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parents:
diff changeset
180 hwnd = CreateWindow(wc.lpszClassName, TEXT("SDL assertion failure"),
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
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parents:
diff changeset
181 WS_OVERLAPPEDWINDOW | WS_VISIBLE,
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
182 150, 150, 570, 260, 0, 0, hInstance, 0);
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parents:
diff changeset
183
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
184 while (GetMessage(&msg, NULL, 0, 0) && (SDL_Windows_AssertData != NULL)) {
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parents:
diff changeset
185 TranslateMessage(&msg);
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
186 DispatchMessage(&msg);
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
187 }
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
188
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
189 DestroyWindow(hwnd);
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
190 UnregisterClass(wc.lpszClassName, hInstance);
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
191 return SDL_Windows_AssertChoice;
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
192 }
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
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parents:
diff changeset
193 #endif
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
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parents:
diff changeset
194
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
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parents:
diff changeset
195
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
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diff changeset
196 static void SDL_AddAssertionToReport(SDL_assert_data *data)
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
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parents:
diff changeset
197 {
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
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diff changeset
198 #if !SDL_ASSERTION_REPORT_DISABLED
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parents:
diff changeset
199 /* (data) is always a static struct defined with the assert macros, so
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parents:
diff changeset
200 we don't have to worry about copying or allocating them. */
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
201 if (data->next == NULL) { /* not yet added? */
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
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parents:
diff changeset
202 data->next = triggered_assertions;
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
203 triggered_assertions = data;
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
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parents:
diff changeset
204 }
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
205 #endif
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
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parents:
diff changeset
206 }
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
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parents:
diff changeset
207
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
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diff changeset
208 static void SDL_GenerateAssertionReport(void)
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
209 {
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
210 #if !SDL_ASSERTION_REPORT_DISABLED
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
211 if (triggered_assertions != &assertion_list_terminator)
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parents:
diff changeset
212 {
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
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parents:
diff changeset
213 SDL_assert_data *item = triggered_assertions;
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
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parents:
diff changeset
214
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
215 debug_print("\n\nSDL assertion report.\n");
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
216 debug_print("All SDL assertions between last init/quit:\n\n");
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
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parents:
diff changeset
217
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
218 while (item != &assertion_list_terminator) {
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
219 debug_print(
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
220 "'%s'\n"
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
221 " * %s (%s:%d)\n"
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
222 " * triggered %u time%s.\n"
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
223 " * always ignore: %s.\n",
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
224 item->condition, item->function, item->filename,
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
225 item->linenum, item->trigger_count,
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
226 (item->trigger_count == 1) ? "" : "s",
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
227 item->always_ignore ? "yes" : "no");
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
228 item = item->next;
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
229 }
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
230 debug_print("\n");
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
231
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
232 triggered_assertions = &assertion_list_terminator;
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
233 }
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
234 #endif
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
235 }
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
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parents:
diff changeset
236
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
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parents:
diff changeset
237
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
238 static void SDL_AbortAssertion(void)
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
239 {
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
240 SDL_Quit();
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
241 #ifdef _WINDOWS
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
242 ExitProcess(42);
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
243 #elif unix || __APPLE__
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
244 _exit(42);
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
245 #else
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
246 #error Please define your platform or set SDL_ASSERT_LEVEL to 0.
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
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parents:
diff changeset
247 #endif
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
248 }
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
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parents:
diff changeset
249
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
250
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
251 static SDL_assert_state SDL_PromptAssertion(const SDL_assert_data *data)
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
252 {
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
253 const char *envr;
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
254
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
255 debug_print("\n\n"
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
256 "Assertion failure at %s (%s:%d), triggered %u time%s:\n"
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
257 " '%s'\n"
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
258 "\n",
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
259 data->function, data->filename, data->linenum,
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
260 data->trigger_count, (data->trigger_count == 1) ? "" : "s",
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
261 data->condition);
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
262
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
263 /* let env. variable override, so unit tests won't block in a GUI. */
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
264 envr = SDL_getenv("SDL_ASSERT");
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
265 if (envr != NULL) {
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
266 if (SDL_strcmp(envr, "abort") == 0) {
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
267 return SDL_ASSERTION_ABORT;
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
268 } else if (SDL_strcmp(envr, "break") == 0) {
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
269 return SDL_ASSERTION_BREAK;
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
270 } else if (SDL_strcmp(envr, "retry") == 0) {
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
271 return SDL_ASSERTION_RETRY;
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
272 } else if (SDL_strcmp(envr, "ignore") == 0) {
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
273 return SDL_ASSERTION_IGNORE;
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
274 } else if (SDL_strcmp(envr, "always_ignore") == 0) {
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
275 return SDL_ASSERTION_ALWAYS_IGNORE;
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
276 } else {
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
277 return SDL_ASSERTION_ABORT; /* oh well. */
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
278 }
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
279 }
c5925cd41955 First pass at Ryan's assertion code, minor tweaks to come.
Sam Lantinga <slouken@libsdl.org>
parents:
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280
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281 /* platform-specific UI... */
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282
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283 #ifdef _WINDOWS
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284 return SDL_PromptAssertion_windows(data);
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285
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286 #elif __APPLE__
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287 /* This has to be done in an Objective-C (*.m) file, so we call out. */
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288 extern SDL_assert_state SDL_PromptAssertion_cocoa(const SDL_assert_data *);
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289 return SDL_PromptAssertion_cocoa(data);
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290
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291 #elif unix
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292 /* this is a little hacky. */
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293 for ( ; ; ) {
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294 char buf[32];
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295 fprintf(stderr, "Abort/Break/Retry/Ignore/AlwaysIgnore? [abriA] : ");
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296 fflush(stderr);
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297 if (fgets(buf, sizeof (buf), stdin) == NULL) {
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298 return SDL_ASSERTION_ABORT;
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299 }
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300
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301 if (SDL_strcmp(buf, "a") == 0) {
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302 return SDL_ASSERTION_ABORT;
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303 } else if (SDL_strcmp(envr, "b") == 0) {
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304 return SDL_ASSERTION_BREAK;
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305 } else if (SDL_strcmp(envr, "r") == 0) {
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306 return SDL_ASSERTION_RETRY;
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307 } else if (SDL_strcmp(envr, "i") == 0) {
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308 return SDL_ASSERTION_IGNORE;
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309 } else if (SDL_strcmp(envr, "A") == 0) {
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310 return SDL_ASSERTION_ALWAYS_IGNORE;
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311 }
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312 }
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313
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314 #else
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315 #error Please define your platform or set SDL_ASSERT_LEVEL to 0.
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316 #endif
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317
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318 return SDL_ASSERTION_ABORT;
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319 }
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320
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321
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322 static SDL_mutex *assertion_mutex = NULL;
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323
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324 SDL_assert_state
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325 SDL_ReportAssertion(SDL_assert_data *data, const char *func, int line)
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326 {
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327 SDL_assert_state state;
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328
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329 if (SDL_LockMutex(assertion_mutex) < 0) {
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330 return SDL_ASSERTION_IGNORE; /* oh well, I guess. */
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331 }
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332
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333 /* doing this because Visual C is upset over assigning in the macro. */
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334 if (data->trigger_count == 0) {
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335 data->function = func;
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336 data->linenum = line;
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337 }
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338
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339 SDL_AddAssertionToReport(data);
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340
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341 data->trigger_count++;
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342 if (data->always_ignore) {
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343 SDL_UnlockMutex(assertion_mutex);
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344 return SDL_ASSERTION_IGNORE;
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345 }
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346
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347 state = SDL_PromptAssertion(data);
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348
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349 switch (state)
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350 {
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351 case SDL_ASSERTION_ABORT:
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352 SDL_UnlockMutex(assertion_mutex); /* in case we assert in quit. */
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353 SDL_AbortAssertion();
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354 return SDL_ASSERTION_IGNORE; /* shouldn't return, but oh well. */
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355
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356 case SDL_ASSERTION_ALWAYS_IGNORE:
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357 state = SDL_ASSERTION_IGNORE;
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358 data->always_ignore = 1;
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359 break;
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360
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361 case SDL_ASSERTION_IGNORE:
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362 case SDL_ASSERTION_RETRY:
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363 case SDL_ASSERTION_BREAK:
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364 break; /* macro handles these. */
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365 }
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366
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367 SDL_UnlockMutex(assertion_mutex);
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368
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369 return state;
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370 }
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371
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372 #endif /* SDL_ASSERT_LEVEL > 0 */
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373
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374
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375 int SDL_AssertionsInit(void)
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376 {
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377 #if (SDL_ASSERT_LEVEL > 0)
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378 assertion_mutex = SDL_CreateMutex();
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379 if (assertion_mutex == NULL) {
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380 return -1;
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381 }
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382 #endif
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383 return 0;
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384 }
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385
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386 void SDL_AssertionsQuit(void)
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387 {
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388 #if (SDL_ASSERT_LEVEL > 0)
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389 SDL_GenerateAssertionReport();
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390 SDL_DestroyMutex(assertion_mutex);
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391 assertion_mutex = NULL;
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392 #endif
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393 }
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394
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395 /* vi: set ts=4 sw=4 expandtab: */
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396