Mercurial > sdl-ios-xcode
annotate src/thread/os2/SDL_sysmutex.c @ 4215:d83830711a5b SDL-1.2
Fixed bug #615
Scott McCreary 2008-08-21 10:48:14 PDT
This patch adds support for Haiku.
http://ports.haiku-files.org/browser/haikuports/trunk/media-libs/libsdl/SDL-1.2.13-haiku.diff
Haiku is an open-source recreation of BeOS. It has better POSIX compliance
than beOS did, and other improved features, which in some cases causes us to
have to "undo" previous BeOS workarounds.
Here's our port log entry for it, showing the steps to force the changes into
configure and Makefile:
http://ports.haiku-files.org/wiki/media-libs/libsdl/1.2.13/1
Note that this was only tried on 1.2.13 stable so far.
Haiku is using a newer config.guess / config.sub that doesn't yet seem to be in
the released libtool, so we are having to copy it in for now.
http://haiku-files.org/files/optional-packages/
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Mon, 21 Sep 2009 09:18:42 +0000 |
| parents | a1b03ba2fcd0 |
| children |
| rev | line source |
|---|---|
| 1190 | 1 /* |
| 2 SDL - Simple DirectMedia Layer | |
| 4159 | 3 Copyright (C) 1997-2009 Sam Lantinga |
| 1190 | 4 |
| 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 |
| 1190 | 7 License as published by the Free Software Foundation; either |
|
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Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
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8 version 2.1 of the License, or (at your option) any later version. |
| 1190 | 9 |
| 10 This library is distributed in the hope that it will be useful, | |
| 11 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
|
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Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
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13 Lesser General Public License for more details. |
| 1190 | 14 |
|
1312
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Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
1190
diff
changeset
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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
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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
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| 1190 | 18 |
| 19 Sam Lantinga | |
| 20 slouken@libsdl.org | |
| 21 */ | |
|
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Use consistent identifiers for the various platforms we support.
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22 #include "SDL_config.h" |
| 1190 | 23 |
| 24 /* Mutex functions using the OS/2 API */ | |
| 25 | |
| 26 #define INCL_DOSERRORS | |
| 27 #define INCL_DOSSEMAPHORES | |
| 28 #include <os2.h> | |
| 29 | |
| 30 #include "SDL_mutex.h" | |
| 31 | |
| 32 | |
| 33 struct SDL_mutex { | |
| 34 HMTX hmtxID; | |
| 35 }; | |
| 36 | |
| 37 /* Create a mutex */ | |
| 38 DECLSPEC SDL_mutex * SDLCALL SDL_CreateMutex(void) | |
| 39 { | |
| 40 SDL_mutex *mutex; | |
| 41 APIRET ulrc; | |
| 42 | |
| 43 /* Allocate mutex memory */ | |
|
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44 mutex = (SDL_mutex *)SDL_malloc(sizeof(*mutex)); |
| 1190 | 45 if (mutex) |
| 46 { | |
| 47 /* Create the mutex, with initial value signaled */ | |
| 48 ulrc = DosCreateMutexSem(NULL, // Create unnamed semaphore | |
| 49 &(mutex->hmtxID), // Pointer to handle | |
| 50 0L, // Flags: create it private (not shared) | |
| 51 FALSE); // Initial value: unowned | |
| 52 if (ulrc!=NO_ERROR) | |
| 53 { | |
| 54 SDL_SetError("Couldn't create mutex"); | |
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Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
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55 SDL_free(mutex); |
| 1190 | 56 mutex = NULL; |
| 57 } | |
| 58 } else { | |
| 59 SDL_OutOfMemory(); | |
| 60 } | |
| 61 return(mutex); | |
| 62 } | |
| 63 | |
| 64 /* Free the mutex */ | |
| 65 DECLSPEC void SDLCALL SDL_DestroyMutex(SDL_mutex *mutex) | |
| 66 { | |
| 67 if ( mutex ) | |
| 68 { | |
| 69 if ( mutex->hmtxID ) | |
| 70 { | |
| 71 DosCloseMutexSem(mutex->hmtxID); | |
| 72 mutex->hmtxID = 0; | |
| 73 } | |
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3692456e7b0f
Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
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74 SDL_free(mutex); |
| 1190 | 75 } |
| 76 } | |
| 77 | |
| 78 /* Lock the mutex */ | |
| 79 DECLSPEC int SDLCALL SDL_mutexP(SDL_mutex *mutex) | |
| 80 { | |
| 81 if ( mutex == NULL ) | |
| 82 { | |
| 83 SDL_SetError("Passed a NULL mutex"); | |
| 84 return -1; | |
| 85 } | |
| 86 if ( DosRequestMutexSem(mutex->hmtxID, SEM_INDEFINITE_WAIT) != NO_ERROR ) | |
| 87 { | |
| 88 SDL_SetError("Couldn't wait on mutex"); | |
| 89 return -1; | |
| 90 } | |
| 91 return(0); | |
| 92 } | |
| 93 | |
| 94 /* Unlock the mutex */ | |
| 95 DECLSPEC int SDLCALL SDL_mutexV(SDL_mutex *mutex) | |
| 96 { | |
| 97 if ( mutex == NULL ) | |
| 98 { | |
| 99 SDL_SetError("Passed a NULL mutex"); | |
| 100 return -1; | |
| 101 } | |
| 102 if ( DosReleaseMutexSem(mutex->hmtxID) != NO_ERROR ) | |
| 103 { | |
| 104 SDL_SetError("Couldn't release mutex"); | |
| 105 return -1; | |
| 106 } | |
| 107 return(0); | |
| 108 } |