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annotate src/thread/win32/SDL_systhread.c @ 1338:604d73db6802

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Removed uses of stdlib.h and string.h
author Sam Lantinga <slouken@libsdl.org>
date Tue, 07 Feb 2006 09:29:18 +0000
parents 3692456e7b0f
children c71e05b4dc2e
rev   line source
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2006 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 /* Win32 thread management routines for SDL */
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24
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25 #include "SDL_windows.h"
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26
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27 #include "SDL_stdlib.h"
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28 #include "SDL_error.h"
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29 #include "SDL_thread.h"
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30 #include "SDL_systhread.h"
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31
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32 typedef struct ThreadStartParms
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33 {
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34 void *args;
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35 pfnSDL_CurrentEndThread pfnCurrentEndThread;
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36 } tThreadStartParms, *pThreadStartParms;
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37
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38 static unsigned __stdcall RunThread(void *data)
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39 {
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40 pThreadStartParms pThreadParms = (pThreadStartParms)data;
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41 pfnSDL_CurrentEndThread pfnCurrentEndThread = NULL;
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42
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43 // Call the thread function!
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44 SDL_RunThread(pThreadParms->args);
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45
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46 // Get the current endthread we have to use!
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47 if (pThreadParms)
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48 {
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49 pfnCurrentEndThread = pThreadParms->pfnCurrentEndThread;
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50 SDL_free(pThreadParms);
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51 }
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52 // Call endthread!
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53 if (pfnCurrentEndThread)
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54 (*pfnCurrentEndThread)(0);
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55 return(0);
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56 }
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57
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58 int SDL_SYS_CreateThread(SDL_Thread *thread, void *args, pfnSDL_CurrentBeginThread pfnBeginThread, pfnSDL_CurrentEndThread pfnEndThread)
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59 {
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60 unsigned threadid;
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61 pThreadStartParms pThreadParms = (pThreadStartParms)SDL_malloc(sizeof(tThreadStartParms));
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62 if (!pThreadParms) {
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63 SDL_OutOfMemory();
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64 return(-1);
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65 }
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66
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67 // Save the function which we will have to call to clear the RTL of calling app!
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68 pThreadParms->pfnCurrentEndThread = pfnEndThread;
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69 // Also save the real parameters we have to pass to thread function
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70 pThreadParms->args = args;
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71
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72 if (pfnBeginThread) {
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73 thread->handle = (SYS_ThreadHandle) pfnBeginThread(NULL, 0, RunThread,
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74 pThreadParms, 0, &threadid);
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75 } else {
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76 thread->handle = CreateThread(NULL, 0, RunThread, pThreadParms, 0, &threadid);
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77 }
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78 if (thread->handle == NULL) {
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79 SDL_SetError("Not enough resources to create thread");
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80 return(-1);
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81 }
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82 return(0);
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83 }
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84
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85 void SDL_SYS_SetupThread(void)
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86 {
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87 return;
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88 }
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89
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90 Uint32 SDL_ThreadID(void)
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91 {
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92 return((Uint32)GetCurrentThreadId());
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93 }
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94
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95 void SDL_SYS_WaitThread(SDL_Thread *thread)
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96 {
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97 WaitForSingleObject(thread->handle, INFINITE);
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98 CloseHandle(thread->handle);
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99 }
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100
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101 /* WARNING: This function is really a last resort.
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102 * Threads should be signaled and then exit by themselves.
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103 * TerminateThread() doesn't perform stack and DLL cleanup.
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104 */
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105 void SDL_SYS_KillThread(SDL_Thread *thread)
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106 {
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107 TerminateThread(thread->handle, FALSE);
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108 }