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3975
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1 /*
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2 SDL - Simple DirectMedia Layer
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4159
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3 Copyright (C) 1997-2009 Sam Lantinga
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3975
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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 #include "epoc_sdl.h"
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31
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32 //#include <stdlib.h>
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33 //#include <stdio.h>
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34
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35
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36
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37 extern "C" {
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38 #undef NULL
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39 #include "SDL_error.h"
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40 #include "SDL_thread.h"
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41 #include "SDL_systhread.h"
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42 #include "SDL_thread_c.h"
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43 }
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44
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45 #include <e32std.h>
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46 #include "epoc_sdl.h"
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47
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48
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49 static int object_count;
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50
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51 int RunThread(TAny* data)
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52 {
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53 CTrapCleanup* cleanup = CTrapCleanup::New();
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54 TRAPD(err, SDL_RunThread(data));
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55 EpocSdlEnv::CleanupItems();
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56 delete cleanup;
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57 return(err);
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58 }
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59
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60
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61 TInt NewThread(const TDesC& aName, TAny* aPtr1, TAny* aPtr2)
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62 {
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63 return ((RThread*)(aPtr1))->Create(aName,
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64 RunThread,
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65 KDefaultStackSize,
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66 NULL,
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67 aPtr2);
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68 }
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69
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70 int CreateUnique(TInt (*aFunc)(const TDesC& aName, TAny*, TAny*), TAny* aPtr1, TAny* aPtr2)
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71 {
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72 TBuf<16> name;
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73 TInt status = KErrNone;
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74 do
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75 {
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76 object_count++;
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77 name.Format(_L("SDL_%x"), object_count);
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78 status = aFunc(name, aPtr1, aPtr2);
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79 }
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80 while(status == KErrAlreadyExists);
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81 return status;
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82 }
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83
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84
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85 int SDL_SYS_CreateThread(SDL_Thread *thread, void *args)
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86 {
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87 RThread rthread;
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88
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89 const TInt status = CreateUnique(NewThread, &rthread, args);
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90 if (status != KErrNone)
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91 {
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92 delete(((RThread*)(thread->handle)));
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93 thread->handle = NULL;
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94 SDL_SetError("Not enough resources to create thread");
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95 return(-1);
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96 }
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97 rthread.Resume();
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98 thread->handle = rthread.Handle();
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99 return(0);
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100 }
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101
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102 void SDL_SYS_SetupThread(void)
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103 {
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104 return;
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105 }
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106
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107 Uint32 SDL_ThreadID(void)
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108 {
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109 RThread current;
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110 const TThreadId id = current.Id();
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111 return id;
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112 }
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113
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114 void SDL_SYS_WaitThread(SDL_Thread *thread)
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115 {
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116 SDL_TRACE1("Close thread", thread);
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117 RThread t;
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118 const TInt err = t.Open(thread->threadid);
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119 if(err == KErrNone && t.ExitType() == EExitPending)
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120 {
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121 TRequestStatus status;
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122 t.Logon(status);
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123 User::WaitForRequest(status);
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124 }
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125 t.Close();
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126
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127 /* RUndertaker taker;
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128 taker.Create();
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129 TRequestStatus status;
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130 taker.Logon(status, thread->handle);
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131 User::WaitForRequest(status);
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132 taker.Close();*/
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133 SDL_TRACE1("Closed thread", thread);
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134 }
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135
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136 /* WARNING: This function is really a last resort.
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137 * Threads should be signaled and then exit by themselves.
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138 * TerminateThread() doesn't perform stack and DLL cleanup.
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139 */
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140 void SDL_SYS_KillThread(SDL_Thread *thread)
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141 {
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142 RThread rthread;
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143 rthread.SetHandle(thread->handle);
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144 rthread.Kill(0);
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145 rthread.Close();
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146 }
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