| 1 | /* |
| 2 | SDL - Simple DirectMedia Layer |
| 3 | Copyright (C) 1997-2009 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 | |
| 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 | |
| 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 | |
| 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 | |
| 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 | |
| 102 | void SDL_SYS_SetupThread(void) |
| 103 | { |
| 104 | return; |
| 105 | } |
| 106 | |
| 107 | Uint32 SDL_ThreadID(void) |
| 108 | { |
| 109 | RThread current; |
| 110 | const TThreadId id = current.Id(); |
| 111 | return id; |
| 112 | } |
| 113 | |
| 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 | */ |
| 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 | } |