1 /*
2 SDL - Simple DirectMedia Layer
3 Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002 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@libsdl.org
21 */
22 #include "SDL_config.h"
23
24 /*
25 SDL_systhread.cpp
26 Epoc thread management routines for SDL
27
28 Epoc version by Markus Mertama (w@iki.fi)
29 */
30
31
32 extern "C" {
33 #undef NULL
34 #include "SDL_error.h"
35 #include "SDL_thread.h"
36 #include "../SDL_systhread.h"
37 };
38
39 #include <e32std.h>
40
41
42 static int object_count;
43
RunThread(TAny * data)44 int RunThread(TAny* data)
45 {
46 SDL_RunThread(data);
47 return(0);
48 }
49
50
NewThread(const TDesC & aName,TAny * aPtr1,TAny * aPtr2)51 TInt NewThread(const TDesC& aName, TAny* aPtr1, TAny* aPtr2)
52 {
53 return ((RThread*)(aPtr1))->Create(aName,
54 RunThread,
55 KDefaultStackSize,
56 NULL,
57 aPtr2);
58 }
59
CreateUnique(TInt (* aFunc)(const TDesC & aName,TAny *,TAny *),TAny * aPtr1,TAny * aPtr2)60 int CreateUnique(TInt (*aFunc)(const TDesC& aName, TAny*, TAny*), TAny* aPtr1, TAny* aPtr2)
61 {
62 TBuf<16> name;
63 TInt status = KErrNone;
64 do
65 {
66 object_count++;
67 name.Format(_L("SDL_%x"), object_count);
68 status = aFunc(name, aPtr1, aPtr2);
69 }
70 while(status == KErrAlreadyExists);
71 return status;
72 }
73
74
SDL_SYS_CreateThread(SDL_Thread * thread,void * args)75 int SDL_SYS_CreateThread(SDL_Thread *thread, void *args)
76 {
77 RThread rthread;
78
79 TInt status = CreateUnique(NewThread, &rthread, args);
80 if (status != KErrNone)
81 {
82 delete(((RThread*)(thread->handle)));
83 thread->handle = NULL;
84 SDL_SetError("Not enough resources to create thread");
85 return(-1);
86 }
87 rthread.Resume();
88 thread->handle = rthread.Handle();
89 return(0);
90 }
91
SDL_SYS_SetupThread(void)92 void SDL_SYS_SetupThread(void)
93 {
94 return;
95 }
96
SDL_ThreadID(void)97 Uint32 SDL_ThreadID(void)
98 {
99 RThread current;
100 TThreadId id = current.Id();
101 return id;
102 }
103
SDL_SYS_WaitThread(SDL_Thread * thread)104 void SDL_SYS_WaitThread(SDL_Thread *thread)
105 {
106 RUndertaker taker;
107 taker.Create();
108 TRequestStatus status;
109 taker.Logon(status, thread->handle);
110 User::WaitForRequest(status);
111 taker.Close();
112 }
113
114 /* WARNING: This function is really a last resort.
115 * Threads should be signaled and then exit by themselves.
116 * TerminateThread() doesn't perform stack and DLL cleanup.
117 */
SDL_SYS_KillThread(SDL_Thread * thread)118 void SDL_SYS_KillThread(SDL_Thread *thread)
119 {
120 RThread rthread;
121 rthread.SetHandle(thread->handle);
122 rthread.Kill(0);
123 rthread.Close();
124 }
125