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comparison 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
parents
children e8157fcb3114
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172:37e3ca9254c7 173:83018110dce8
1 /*
2 SDL - Simple DirectMedia Layer
3 Copyright (C) 1997, 1998, 1999, 2000 Sam Lantinga
4
5 This library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Library General Public
7 License as published by the Free Software Foundation; either
8 version 2 of the License, or (at your option) any later version.
9
10 This library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Library General Public License for more details.
14
15 You should have received a copy of the GNU Library General Public
16 License along with this library; if not, write to the Free
17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18
19 Sam Lantinga
20 slouken@devolution.com
21 */
22
23 /*
24 SDL_systhread.cpp
25 Epoc thread management routines for SDL
26
27 Epoc version by Markus Mertama (w@iki.fi)
28 */
29
30
31 //#include <stdlib.h>
32 //#include <stdio.h>
33
34
35 extern "C" {
36 #undef NULL
37 #include "SDL_error.h"
38 #include "SDL_thread.h"
39 #include "SDL_systhread.h"
40 };
41
42 #include <e32std.h>
43
44
45 static int object_count;
46
47 int RunThread(TAny* data)
48 {
49 SDL_RunThread(data);
50 return(0);
51 }
52
53
54 TInt NewThread(const TDesC& aName, TAny* aPtr1, TAny* aPtr2)
55 {
56 return ((RThread*)(aPtr1))->Create(aName,
57 RunThread,
58 KDefaultStackSize,
59 NULL,
60 aPtr2);
61 }
62
63 int CreateUnique(TInt (*aFunc)(const TDesC& aName, TAny*, TAny*), TAny* aPtr1, TAny* aPtr2)
64 {
65 TBuf<16> name;
66 TInt status = KErrNone;
67 do
68 {
69 object_count++;
70 name.Format(_L("SDL_%x"), object_count);
71 status = aFunc(name, aPtr1, aPtr2);
72 }
73 while(status == KErrAlreadyExists);
74 return status;
75 }
76
77
78 int SDL_SYS_CreateThread(SDL_Thread *thread, void *args)
79 {
80 RThread rthread;
81
82 TInt status = CreateUnique(NewThread, &rthread, args);
83 if (status != KErrNone)
84 {
85 delete(((RThread*)(thread->handle)));
86 thread->handle = NULL;
87 SDL_SetError("Not enough resources to create thread");
88 return(-1);
89 }
90 rthread.Resume();
91 thread->handle = rthread.Handle();
92 return(0);
93 }
94
95 void SDL_SYS_SetupThread(void)
96 {
97 return;
98 }
99
100 Uint32 SDL_ThreadID(void)
101 {
102 RThread current;
103 TThreadId id = current.Id();
104 return id;
105 }
106
107 void SDL_SYS_WaitThread(SDL_Thread *thread)
108 {
109 RUndertaker taker;
110 taker.Create();
111 TRequestStatus status;
112 taker.Logon(status, thread->handle);
113 User::WaitForRequest(status);
114 taker.Close();
115 }
116
117 /* WARNING: This function is really a last resort.
118 * Threads should be signaled and then exit by themselves.
119 * TerminateThread() doesn't perform stack and DLL cleanup.
120 */
121 void SDL_SYS_KillThread(SDL_Thread *thread)
122 {
123 RThread rthread;
124 rthread.SetHandle(thread->handle);
125 rthread.Kill(0);
126 rthread.Close();
127 }