text: /*
      SDL - Simple DirectMedia Layer
      Copyright (C) 1997-2012 Sam Lantinga
  
      This library is free software; you can redistribute it and/or
      modify it under the terms of the GNU Lesser General Public
      License as published by the Free Software Foundation; either
      version 2.1 of the License, or (at your option) any later version.
  
      This library is distributed in the hope that it will be useful,
      but WITHOUT ANY WARRANTY; without even the implied warranty of
      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      Lesser General Public License for more details.
  
      You should have received a copy of the GNU Lesser General Public
      License along with this library; if not, write to the Free Software
      Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  
      Sam Lantinga
      slouken@libsdl.org
  */
  
  #ifndef _SDL_thread_h
  #define _SDL_thread_h
  
  /** @file SDL_thread.h
   *  Header for the SDL thread management routines 
   *
   *  @note These are independent of the other SDL routines.
   */
  
  #include "SDL_stdinc.h"
  #include "SDL_error.h"
  
  /* Thread synchronization primitives */
  #include "SDL_mutex.h"
  
  #include "begin_code.h"
  /* Set up for C function definitions, even when using C++ */
  #ifdef __cplusplus
  extern "C" {
  #endif
  
  /** The SDL thread structure, defined in SDL_thread.c */
  struct SDL_Thread;
  typedef struct SDL_Thread SDL_Thread;
  
  /** Create a thread */
  #if ((defined(__WIN32__) && !defined(HAVE_LIBC)) || defined(__OS2__)) &&  !defined(__SYMBIAN32__)
  /**
   *  We compile SDL into a DLL on OS/2. This means, that it's the DLL which
   *  creates a new thread for the calling process with the SDL_CreateThread()
   *  API. There is a problem with this, that only the RTL of the SDL.DLL will
   *  be initialized for those threads, and not the RTL of the calling application!
   *  To solve this, we make a little hack here.
   *  We'll always use the caller's _beginthread() and _endthread() APIs to
   *  start a new thread. This way, if it's the SDL.DLL which uses this API,
   *  then the RTL of SDL.DLL will be used to create the new thread, and if it's
   *  the application, then the RTL of the application will be used.
   *  So, in short:
   *  Always use the _beginthread() and _endthread() of the calling runtime library!
   */
  #define SDL_PASSED_BEGINTHREAD_ENDTHREAD
  #ifndef _WIN32_WCE
  #include <process.h> /* This has _beginthread() and _endthread() defined! */
  #endif
  #ifdef __EMX__
  #include <stdlib.h>
  #endif
  
  #ifdef __OS2__
  typedef int (*pfnSDL_CurrentBeginThread)(void (*func)(void *), void *, unsigned, void *arg); 
  typedef void (*pfnSDL_CurrentEndThread)(void);
  #else
  typedef uintptr_t (__cdecl *pfnSDL_CurrentBeginThread) (void *, unsigned,
          unsigned (__stdcall *func)(void *), void *arg, 
          unsigned, unsigned *threadID);
  typedef void (__cdecl *pfnSDL_CurrentEndThread)(unsigned code);
  #endif
  
  extern DECLSPEC SDL_Thread * SDLCALL SDL_CreateThread(int (SDLCALL *fn)(void *), void *data, pfnSDL_CurrentBeginThread pfnBeginThread, pfnSDL_CurrentEndThread pfnEndThread);
  
  #ifdef __OS2__
  #define SDL_CreateThread(fn, data) SDL_CreateThread(fn, data, _beginthread, _endthread)
  #elif defined(_WIN32_WCE)
  #define SDL_CreateThread(fn, data) SDL_CreateThread(fn, data, NULL, NULL)
  #else
  #define SDL_CreateThread(fn, data) SDL_CreateThread(fn, data, _beginthreadex, _endthreadex)
  #endif
  #else
  extern DECLSPEC SDL_Thread * SDLCALL SDL_CreateThread(int (SDLCALL *fn)(void *), void *data);
  #endif
  
  /** Get the 32-bit thread identifier for the current thread */
  extern DECLSPEC Uint32 SDLCALL SDL_ThreadID(void);
  
  /** Get the 32-bit thread identifier for the specified thread,
   *  equivalent to SDL_ThreadID() if the specified thread is NULL.
   */
  extern DECLSPEC Uint32 SDLCALL SDL_GetThreadID(SDL_Thread *thread);
  
  /** Wait for a thread to finish.
   *  The return code for the thread function is placed in the area
   *  pointed to by 'status', if 'status' is not NULL.
   */
  extern DECLSPEC void SDLCALL SDL_WaitThread(SDL_Thread *thread, int *status);
  
  /** Forcefully kill a thread without worrying about its state */
  extern DECLSPEC void SDLCALL SDL_KillThread(SDL_Thread *thread);
  
  
  /* Ends C function definitions when using C++ */
  #ifdef __cplusplus
  }
  #endif
  #include "close_code.h"
  
  #endif /* _SDL_thread_h */
  