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annotate src/thread/epoc/SDL_systhread.cpp @ 173:83018110dce8

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Added initial support for EPOC/Symbian OS (thanks Hannu!)
author Sam Lantinga <slouken@libsdl.org>
date Tue, 11 Sep 2001 20:38:49 +0000
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children e8157fcb3114
rev   line source
173
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997, 1998, 1999, 2000 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 Library General Public
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7 License as published by the Free Software Foundation; either
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8 version 2 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 Library 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 Library General Public
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16 License along with this library; if not, write to the Free
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17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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18
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19 Sam Lantinga
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20 slouken@devolution.com
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21 */
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22
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23 /*
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24 SDL_systhread.cpp
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25 Epoc thread management routines for SDL
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26
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27 Epoc version by Markus Mertama (w@iki.fi)
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28 */
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29
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30
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31 //#include <stdlib.h>
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32 //#include <stdio.h>
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33
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34
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35 extern "C" {
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36 #undef NULL
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37 #include "SDL_error.h"
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38 #include "SDL_thread.h"
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39 #include "SDL_systhread.h"
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40 };
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41
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42 #include <e32std.h>
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43
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44
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45 static int object_count;
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46
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47 int RunThread(TAny* data)
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48 {
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49 SDL_RunThread(data);
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50 return(0);
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51 }
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52
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53
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54 TInt NewThread(const TDesC& aName, TAny* aPtr1, TAny* aPtr2)
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55 {
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56 return ((RThread*)(aPtr1))->Create(aName,
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57 RunThread,
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58 KDefaultStackSize,
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59 NULL,
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60 aPtr2);
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61 }
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62
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63 int CreateUnique(TInt (*aFunc)(const TDesC& aName, TAny*, TAny*), TAny* aPtr1, TAny* aPtr2)
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64 {
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65 TBuf<16> name;
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66 TInt status = KErrNone;
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67 do
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68 {
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69 object_count++;
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70 name.Format(_L("SDL_%x"), object_count);
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71 status = aFunc(name, aPtr1, aPtr2);
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72 }
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73 while(status == KErrAlreadyExists);
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74 return status;
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75 }
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76
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77
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78 int SDL_SYS_CreateThread(SDL_Thread *thread, void *args)
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79 {
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80 RThread rthread;
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81
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82 TInt status = CreateUnique(NewThread, &rthread, args);
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83 if (status != KErrNone)
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84 {
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85 delete(((RThread*)(thread->handle)));
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86 thread->handle = NULL;
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87 SDL_SetError("Not enough resources to create thread");
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88 return(-1);
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89 }
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90 rthread.Resume();
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91 thread->handle = rthread.Handle();
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92 return(0);
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93 }
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94
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95 void SDL_SYS_SetupThread(void)
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96 {
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97 return;
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98 }
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99
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100 Uint32 SDL_ThreadID(void)
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101 {
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102 RThread current;
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103 TThreadId id = current.Id();
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104 return id;
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105 }
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106
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107 void SDL_SYS_WaitThread(SDL_Thread *thread)
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108 {
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109 RUndertaker taker;
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110 taker.Create();
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111 TRequestStatus status;
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112 taker.Logon(status, thread->handle);
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113 User::WaitForRequest(status);
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114 taker.Close();
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115 }
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116
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117 /* WARNING: This function is really a last resort.
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118 * Threads should be signaled and then exit by themselves.
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119 * TerminateThread() doesn't perform stack and DLL cleanup.
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120 */
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121 void SDL_SYS_KillThread(SDL_Thread *thread)
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122 {
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123 RThread rthread;
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124 rthread.SetHandle(thread->handle);
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125 rthread.Kill(0);
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126 rthread.Close();
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127 }