Mercurial > sdl-ios-xcode

annotate src/thread/os2/SDL_syssem.c @ 2842:97ba0be8b565

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Date: Sat, 06 Dec 2008 15:27:00 +0100 From: Couriersud Subject: SDL: Relative mouse movements The patch below will reenable processing of relative mouse movements. The DirectFB drivers generates those in "grabbed" mode. These ensure, that even in fullscreen mode relative movements are reported. SDLMAME depends on this for games with trackballs. Looking at the code I ask myself whether relative movements should be handled in the drivers (x11, directfb). Both x11 and directfb are able to report relative movements. This would leave it to the driver to use the most appropriate method for relative movements when at the border of a fullscreen window or being "grabbed".
author Sam Lantinga <slouken@libsdl.org>
date Sat, 06 Dec 2008 17:50:50 +0000
parents c121d94672cb
children 99210400e8b9
rev   line source
1190
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1 /*
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
2 SDL - Simple DirectMedia Layer
1312
c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents: 1190
diff changeset
3 Copyright (C) 1997-2006 Sam Lantinga
1190
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
4
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
5 This library is free software; you can redistribute it and/or
1312
c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents: 1190
diff changeset
6 modify it under the terms of the GNU Lesser General Public
1190
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
7 License as published by the Free Software Foundation; either
1312
c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents: 1190
diff changeset
8 version 2.1 of the License, or (at your option) any later version.
1190
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
9
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
10 This library is distributed in the hope that it will be useful,
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
1312
c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents: 1190
diff changeset
13 Lesser General Public License for more details.
1190
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
14
1312
c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents: 1190
diff changeset
15 You should have received a copy of the GNU Lesser General Public
c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents: 1190
diff changeset
16 License along with this library; if not, write to the Free Software
c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents: 1190
diff changeset
17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
1190
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
18
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
19 Sam Lantinga
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
20 slouken@libsdl.org
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
21 */
1402
d910939febfa Use consistent identifiers for the various platforms we support.
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
22 #include "SDL_config.h"
1190
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
23
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
24 /* Semaphore functions using the OS/2 API */
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
25
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
26 #define INCL_DOS
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
27 #define INCL_DOSERRORS
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
28 #define INCL_DOSSEMAPHORES
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
29 #include <os2.h>
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
30
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
31 #include "SDL_thread.h"
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
32 #include "SDL_timer.h"
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
33
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
34
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
35 struct SDL_semaphore
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
36 {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
37 HMTX id;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
38 HEV changed;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
39 Uint32 value;
1190
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
40 };
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
41
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
42
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
43 /* Create a semaphore */
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
44 DECLSPEC SDL_sem *SDLCALL
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
45 SDL_CreateSemaphore(Uint32 initial_value)
1190
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
46 {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
47 SDL_sem *sem;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
48 ULONG ulrc;
1190
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
49
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
50 /* Allocate sem memory */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
51 sem = (SDL_sem *) SDL_malloc(sizeof(*sem));
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
52 if (sem) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
53 /* Create the mutex semaphore */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
54 ulrc = DosCreateMutexSem(NULL, &(sem->id), 0, TRUE);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
55 if (ulrc) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
56 SDL_SetError("Couldn't create semaphore");
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
57 SDL_free(sem);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
58 sem = NULL;
1190
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
59 } else {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
60 DosCreateEventSem(NULL, &(sem->changed), 0, FALSE);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
61 sem->value = initial_value;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
62 DosReleaseMutexSem(sem->id);
1190
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
63 }
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
64 } else {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
65 SDL_OutOfMemory();
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
66 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
67 return (sem);
1190
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
68 }
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
69
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
70 /* Free the semaphore */
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
71 DECLSPEC void SDLCALL
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
72 SDL_DestroySemaphore(SDL_sem * sem)
1190
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
73 {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
74 if (sem) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
75 if (sem->id) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
76 DosCloseEventSem(sem->changed);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
77 DosCloseMutexSem(sem->id);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
78 sem->id = 0;
1190
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
79 }
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
80 SDL_free(sem);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
81 }
1190
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
82 }
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
83
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
84 DECLSPEC int SDLCALL
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
85 SDL_SemWaitTimeout(SDL_sem * sem, Uint32 timeout)
1190
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
86 {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
87 ULONG ulrc;
1190
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
88
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
89 if (!sem) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
90 SDL_SetError("Passed a NULL sem");
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
91 return -1;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
92 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
93
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
94 if (timeout == SDL_MUTEX_MAXWAIT) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
95 while (1) {
1190
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
96 ulrc = DosRequestMutexSem(sem->id, SEM_INDEFINITE_WAIT);
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
97 if (ulrc) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
98 /* if error waiting mutex */
1190
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
99 SDL_SetError("DosRequestMutexSem() failed");
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
100 return -1;
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
101 } else if (sem->value) {
1190
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
102 sem->value--;
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
103 DosReleaseMutexSem(sem->id);
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
104 return 0;
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
105 } else {
1190
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
106 ULONG ulPostCount;
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
107 DosResetEventSem(sem->changed, &ulPostCount);
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
108 DosReleaseMutexSem(sem->id);
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
109 /* continue waiting until somebody posts the semaphore */
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
110 DosWaitEventSem(sem->changed, SEM_INDEFINITE_WAIT);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
111 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
112 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
113 } else if (timeout == 0) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
114 ulrc = DosRequestMutexSem(sem->id, SEM_INDEFINITE_WAIT);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
115 if (ulrc == NO_ERROR) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
116 if (sem->value) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
117 sem->value--;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
118 DosReleaseMutexSem(sem->id);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
119 return 0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
120 } else {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
121 DosReleaseMutexSem(sem->id);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
122 return SDL_MUTEX_TIMEDOUT;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
123 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
124 } else {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
125 SDL_SetError("DosRequestMutexSem() failed");
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
126 return -1;
1190
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
127 }
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
128 } else {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
129 ulrc = DosRequestMutexSem(sem->id, SEM_INDEFINITE_WAIT);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
130 if (ulrc) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
131 /* if error waiting mutex */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
132 SDL_SetError("DosRequestMutexSem() failed");
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
133 return -1;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
134 } else if (sem->value) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
135 sem->value--;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
136 DosReleaseMutexSem(sem->id);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
137 return 0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
138 } else {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
139 ULONG ulPostCount;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
140 DosResetEventSem(sem->changed, &ulPostCount);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
141 DosReleaseMutexSem(sem->id);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
142 /* continue waiting until somebody posts the semaphore */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
143 ulrc = DosWaitEventSem(sem->changed, timeout);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
144 if (ulrc == NO_ERROR)
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
145 return 0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
146 else
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
147 return SDL_MUTEX_TIMEDOUT;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
148 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
149 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
150 /* never reached */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
151 return -1;
1190
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
152 }
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
153
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
154 DECLSPEC int SDLCALL
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
155 SDL_SemTryWait(SDL_sem * sem)
1190
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
156 {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
157 return SDL_SemWaitTimeout(sem, 0);
1190
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
158 }
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
159
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
160 DECLSPEC int SDLCALL
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
161 SDL_SemWait(SDL_sem * sem)
1190
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
162 {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
163 return SDL_SemWaitTimeout(sem, SDL_MUTEX_MAXWAIT);
1190
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
164 }
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
165
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
166 /* Returns the current count of the semaphore */
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
167 DECLSPEC Uint32 SDLCALL
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
168 SDL_SemValue(SDL_sem * sem)
1190
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
169 {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
170 if (!sem) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
171 SDL_SetError("Passed a NULL sem");
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
172 return 0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
173 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
174 return sem->value;
1190
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
175 }
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
176
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
177 DECLSPEC int SDLCALL
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
178 SDL_SemPost(SDL_sem * sem)
1190
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
179 {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
180 if (!sem) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
181 SDL_SetError("Passed a NULL sem");
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
182 return -1;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
183 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
184 if (DosRequestMutexSem(sem->id, SEM_INDEFINITE_WAIT)) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
185 SDL_SetError("DosRequestMutexSem() failed");
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
186 return -1;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
187 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
188 sem->value++;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
189 DosPostEventSem(sem->changed);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
190 DosReleaseMutexSem(sem->id);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
191 return 0;
1190
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
192 }
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
193
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
194 /* vi: set ts=4 sw=4 expandtab: */