Mercurial > sdl-ios-xcode
annotate src/thread/win32/SDL_sysmutex.c @ 1402:d910939febfa
Use consistent identifiers for the various platforms we support.
Make sure every source file includes SDL_config.h, so the proper system
headers are chosen.
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Tue, 21 Feb 2006 08:46:50 +0000 |
| parents | c71e05b4dc2e |
| children | bb6839704ed6 |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 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:
769
diff
changeset
|
3 Copyright (C) 1997-2006 Sam Lantinga |
| 0 | 4 |
| 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:
769
diff
changeset
|
6 modify it under the terms of the GNU Lesser General Public |
| 0 | 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:
769
diff
changeset
|
8 version 2.1 of the License, or (at your option) any later version. |
| 0 | 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 | |
|
1312
c9b51268668f
Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
|
13 Lesser General Public License for more details. |
| 0 | 14 |
|
1312
c9b51268668f
Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
769
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:
769
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:
769
diff
changeset
|
17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| 0 | 18 |
| 19 Sam Lantinga | |
|
252
e8157fcb3114
Updated the source with the correct e-mail address
Sam Lantinga <slouken@libsdl.org>
parents:
0
diff
changeset
|
20 slouken@libsdl.org |
| 0 | 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" |
| 0 | 23 |
| 24 /* Mutex functions using the Win32 API */ | |
| 25 | |
|
1330
450721ad5436
It's now possible to build SDL without any C runtime at all on Windows,
Sam Lantinga <slouken@libsdl.org>
parents:
1312
diff
changeset
|
26 #include "SDL_windows.h" |
| 0 | 27 |
| 28 #include "SDL_mutex.h" | |
| 29 | |
| 30 | |
| 31 struct SDL_mutex { | |
| 32 HANDLE id; | |
| 33 }; | |
| 34 | |
| 35 /* Create a mutex */ | |
| 36 SDL_mutex *SDL_CreateMutex(void) | |
| 37 { | |
| 38 SDL_mutex *mutex; | |
| 39 | |
| 40 /* Allocate mutex memory */ | |
|
1336
3692456e7b0f
Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents:
1330
diff
changeset
|
41 mutex = (SDL_mutex *)SDL_malloc(sizeof(*mutex)); |
| 0 | 42 if ( mutex ) { |
| 43 /* Create the mutex, with initial value signaled */ | |
| 44 mutex->id = CreateMutex(NULL, FALSE, NULL); | |
| 45 if ( ! mutex->id ) { | |
| 46 SDL_SetError("Couldn't create mutex"); | |
|
1336
3692456e7b0f
Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents:
1330
diff
changeset
|
47 SDL_free(mutex); |
| 0 | 48 mutex = NULL; |
| 49 } | |
| 50 } else { | |
| 51 SDL_OutOfMemory(); | |
| 52 } | |
| 53 return(mutex); | |
| 54 } | |
| 55 | |
| 56 /* Free the mutex */ | |
| 57 void SDL_DestroyMutex(SDL_mutex *mutex) | |
| 58 { | |
| 59 if ( mutex ) { | |
| 60 if ( mutex->id ) { | |
| 61 CloseHandle(mutex->id); | |
| 62 mutex->id = 0; | |
| 63 } | |
|
1336
3692456e7b0f
Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents:
1330
diff
changeset
|
64 SDL_free(mutex); |
| 0 | 65 } |
| 66 } | |
| 67 | |
| 68 /* Lock the mutex */ | |
| 69 int SDL_mutexP(SDL_mutex *mutex) | |
| 70 { | |
| 71 if ( mutex == NULL ) { | |
| 72 SDL_SetError("Passed a NULL mutex"); | |
| 73 return -1; | |
| 74 } | |
| 75 if ( WaitForSingleObject(mutex->id, INFINITE) == WAIT_FAILED ) { | |
| 76 SDL_SetError("Couldn't wait on mutex"); | |
| 77 return -1; | |
| 78 } | |
| 79 return(0); | |
| 80 } | |
| 81 | |
| 82 /* Unlock the mutex */ | |
| 83 int SDL_mutexV(SDL_mutex *mutex) | |
| 84 { | |
| 85 if ( mutex == NULL ) { | |
| 86 SDL_SetError("Passed a NULL mutex"); | |
| 87 return -1; | |
| 88 } | |
| 89 if ( ReleaseMutex(mutex->id) == FALSE ) { | |
| 90 SDL_SetError("Couldn't release mutex"); | |
| 91 return -1; | |
| 92 } | |
| 93 return(0); | |
| 94 } |