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annotate src/thread/epoc/SDL_systhread.cpp @ 1419:36a5068bf7df

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author Sam Lantinga <slouken@libsdl.org>
date Thu, 23 Feb 2006 04:16:08 +0000
parents 19418e4422cb
children 92947e3a18db
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, 1998, 1999, 2000, 2001, 2002 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@libsdl.org
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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 extern "C" {
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32 #undef NULL
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33 #include "SDL_error.h"
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34 #include "SDL_thread.h"
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35 #include "../SDL_systhread.h"
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36 };
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37
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38 #include <e32std.h>
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39
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40
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41 static int object_count;
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42
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43 int RunThread(TAny* data)
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44 {
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45 SDL_RunThread(data);
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46 return(0);
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47 }
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48
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49
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50 TInt NewThread(const TDesC& aName, TAny* aPtr1, TAny* aPtr2)
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51 {
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52 return ((RThread*)(aPtr1))->Create(aName,
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53 RunThread,
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54 KDefaultStackSize,
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55 NULL,
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56 aPtr2);
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57 }
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58
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59 int CreateUnique(TInt (*aFunc)(const TDesC& aName, TAny*, TAny*), TAny* aPtr1, TAny* aPtr2)
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60 {
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61 TBuf<16> name;
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62 TInt status = KErrNone;
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63 do
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64 {
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65 object_count++;
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66 name.Format(_L("SDL_%x"), object_count);
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67 status = aFunc(name, aPtr1, aPtr2);
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68 }
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69 while(status == KErrAlreadyExists);
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70 return status;
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71 }
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72
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73
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74 int SDL_SYS_CreateThread(SDL_Thread *thread, void *args)
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75 {
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76 RThread rthread;
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77
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78 TInt status = CreateUnique(NewThread, &rthread, args);
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79 if (status != KErrNone)
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80 {
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81 delete(((RThread*)(thread->handle)));
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82 thread->handle = NULL;
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83 SDL_SetError("Not enough resources to create thread");
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84 return(-1);
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85 }
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86 rthread.Resume();
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87 thread->handle = rthread.Handle();
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88 return(0);
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89 }
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90
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91 void SDL_SYS_SetupThread(void)
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92 {
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93 return;
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94 }
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95
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96 Uint32 SDL_ThreadID(void)
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97 {
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98 RThread current;
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99 TThreadId id = current.Id();
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100 return id;
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101 }
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102
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103 void SDL_SYS_WaitThread(SDL_Thread *thread)
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104 {
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105 RUndertaker taker;
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106 taker.Create();
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107 TRequestStatus status;
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108 taker.Logon(status, thread->handle);
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109 User::WaitForRequest(status);
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110 taker.Close();
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111 }
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112
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113 /* WARNING: This function is really a last resort.
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114 * Threads should be signaled and then exit by themselves.
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115 * TerminateThread() doesn't perform stack and DLL cleanup.
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116 */
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117 void SDL_SYS_KillThread(SDL_Thread *thread)
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118 {
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119 RThread rthread;
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120 rthread.SetHandle(thread->handle);
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121 rthread.Kill(0);
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122 rthread.Close();
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123 }