1 /*
2 SDL - Simple DirectMedia Layer
3 Copyright (C) 1997-2012 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 #include "epoc_sdl.h"
31
32 //#include <stdlib.h>
33 //#include <stdio.h>
34
35
36
37 extern "C" {
38 #undef NULL
39 #include "SDL_error.h"
40 #include "SDL_thread.h"
41 #include "SDL_systhread.h"
42 #include "SDL_thread_c.h"
43 }
44
45 #include <e32std.h>
46 #include "epoc_sdl.h"
47
48
49 static int object_count;
50
RunThread(TAny * data)51 int RunThread(TAny* data)
52 {
53 CTrapCleanup* cleanup = CTrapCleanup::New();
54 TRAPD(err, SDL_RunThread(data));
55 EpocSdlEnv::CleanupItems();
56 delete cleanup;
57 return(err);
58 }
59
60
NewThread(const TDesC & aName,TAny * aPtr1,TAny * aPtr2)61 TInt NewThread(const TDesC& aName, TAny* aPtr1, TAny* aPtr2)
62 {
63 return ((RThread*)(aPtr1))->Create(aName,
64 RunThread,
65 KDefaultStackSize,
66 NULL,
67 aPtr2);
68 }
69
CreateUnique(TInt (* aFunc)(const TDesC & aName,TAny *,TAny *),TAny * aPtr1,TAny * aPtr2)70 int CreateUnique(TInt (*aFunc)(const TDesC& aName, TAny*, TAny*), TAny* aPtr1, TAny* aPtr2)
71 {
72 TBuf<16> name;
73 TInt status = KErrNone;
74 do
75 {
76 object_count++;
77 name.Format(_L("SDL_%x"), object_count);
78 status = aFunc(name, aPtr1, aPtr2);
79 }
80 while(status == KErrAlreadyExists);
81 return status;
82 }
83
84
SDL_SYS_CreateThread(SDL_Thread * thread,void * args)85 int SDL_SYS_CreateThread(SDL_Thread *thread, void *args)
86 {
87 RThread rthread;
88
89 const TInt status = CreateUnique(NewThread, &rthread, args);
90 if (status != KErrNone)
91 {
92 delete(((RThread*)(thread->handle)));
93 thread->handle = NULL;
94 SDL_SetError("Not enough resources to create thread");
95 return(-1);
96 }
97 rthread.Resume();
98 thread->handle = rthread.Handle();
99 return(0);
100 }
101
SDL_SYS_SetupThread(void)102 void SDL_SYS_SetupThread(void)
103 {
104 return;
105 }
106
SDL_ThreadID(void)107 Uint32 SDL_ThreadID(void)
108 {
109 RThread current;
110 const TThreadId id = current.Id();
111 return id;
112 }
113
SDL_SYS_WaitThread(SDL_Thread * thread)114 void SDL_SYS_WaitThread(SDL_Thread *thread)
115 {
116 SDL_TRACE1("Close thread", thread);
117 RThread t;
118 const TInt err = t.Open(thread->threadid);
119 if(err == KErrNone && t.ExitType() == EExitPending)
120 {
121 TRequestStatus status;
122 t.Logon(status);
123 User::WaitForRequest(status);
124 }
125 t.Close();
126
127 /* RUndertaker taker;
128 taker.Create();
129 TRequestStatus status;
130 taker.Logon(status, thread->handle);
131 User::WaitForRequest(status);
132 taker.Close();*/
133 SDL_TRACE1("Closed thread", thread);
134 }
135
136 /* WARNING: This function is really a last resort.
137 * Threads should be signaled and then exit by themselves.
138 * TerminateThread() doesn't perform stack and DLL cleanup.
139 */
SDL_SYS_KillThread(SDL_Thread * thread)140 void SDL_SYS_KillThread(SDL_Thread *thread)
141 {
142 RThread rthread;
143 rthread.SetHandle(thread->handle);
144 rthread.Kill(0);
145 rthread.Close();
146 }
147