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annotate src/thread/epoc/SDL_systhread.cpp @ 571:8e3ce997621c

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Date: Thu, 16 Jan 2003 13:48:31 +0200 From: "Mike Gorchak" Subject: All QNX patches whole patches concerning QNX. Almost all code has been rewritten by Julian and me. Added initial support for hw overlays in QNX and many many others fixes. P.S. This patches has been reviewed by Dave Rempel from QSSL and included in SDL 1.2.5 distribution, which coming on 3rd party CD for newest 6.2.1 version of QNX, which will be available soon.
author Sam Lantinga <slouken@libsdl.org>
date Mon, 20 Jan 2003 01:38:37 +0000
parents f6ffac90895c
children 604d73db6802
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 //#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 }