Mercurial > sdl-ios-xcode
annotate src/thread/pth/SDL_sysmutex.c @ 1250:a4d515d0fc3a
Fixed up build script to catch some of the newer files in a "make dist" run.
author | Ryan C. Gordon <icculus@icculus.org> |
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date | Thu, 19 Jan 2006 08:36:41 +0000 |
parents | 1d74ddc90cb2 |
children | 3692456e7b0f |
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1 /* |
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2 * GNU pth mutexes |
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3 * |
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4 * Patrice Mandin |
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5 */ |
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6 |
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7 #include <stdio.h> |
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8 #include <stdlib.h> |
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9 #include <pth.h> |
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10 |
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11 #include "SDL_error.h" |
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12 #include "SDL_mutex.h" |
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13 #include "SDL_sysmutex_c.h" |
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14 |
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15 /* Create a mutex */ |
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16 SDL_mutex *SDL_CreateMutex(void) |
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17 { |
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18 SDL_mutex *mutex; |
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19 |
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20 /* Allocate mutex memory */ |
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21 mutex = (SDL_mutex *)malloc(sizeof(*mutex)); |
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22 if ( mutex ) { |
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23 /* Create the mutex, with initial value signaled */ |
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24 if (!pth_mutex_init(&(mutex->mutexpth_p))) { |
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25 SDL_SetError("Couldn't create mutex"); |
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26 free(mutex); |
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27 mutex = NULL; |
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28 } |
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29 } else { |
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30 SDL_OutOfMemory(); |
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31 } |
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32 return(mutex); |
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33 } |
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34 |
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35 /* Free the mutex */ |
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36 void SDL_DestroyMutex(SDL_mutex *mutex) |
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37 { |
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38 if ( mutex ) { |
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39 free(mutex); |
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40 } |
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41 } |
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42 |
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43 /* Lock the mutex */ |
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44 int SDL_mutexP(SDL_mutex *mutex) |
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45 { |
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46 if ( mutex == NULL ) { |
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47 SDL_SetError("Passed a NULL mutex"); |
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48 return -1; |
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49 } |
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50 |
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51 pth_mutex_acquire(&(mutex->mutexpth_p), FALSE, NULL); |
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52 |
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53 return(0); |
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54 } |
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55 |
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56 /* Unlock the mutex */ |
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57 int SDL_mutexV(SDL_mutex *mutex) |
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58 { |
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59 if ( mutex == NULL ) { |
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60 SDL_SetError("Passed a NULL mutex"); |
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61 return -1; |
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62 } |
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63 |
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64 pth_mutex_release(&(mutex->mutexpth_p)); |
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65 |
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66 return(0); |
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67 } |