mirror of https://github.com/fltk/fltk
76 lines
2.3 KiB
C
76 lines
2.3 KiB
C
//
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// Simple threading API for the Fast Light Tool Kit (FLTK).
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//
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// Copyright 1998-2016 by Bill Spitzak and others.
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//
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// This library is free software. Distribution and use rights are outlined in
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// the file "COPYING" which should have been included with this file. If this
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// file is missing or damaged, see the license at:
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//
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// https://www.fltk.org/COPYING.php
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//
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// Please see the following page on how to report bugs and issues:
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//
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// https://www.fltk.org/bugs.php
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//
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// Inline classes to provide portable support for threads and mutexes.
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//
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// FLTK does not use this (it has an internal mutex implementation
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// that is used if Fl::lock() is called). This header file's only
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// purpose is so we can write portable demo programs. It may be useful
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// or an inspiration to people who want to try writing multithreaded
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// programs themselves.
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//
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// FLTK has no multithreaded support unless the main thread calls Fl::lock().
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// This main thread is the only thread allowed to call Fl::run() or Fl::wait().
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// From then on FLTK will be locked except when the main thread is actually
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// waiting for events from the user. Other threads must call Fl::lock() and
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// Fl::unlock() to surround calls to FLTK (such as to change widgets or
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// redraw them).
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#ifndef Threads_H
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# define Threads_H
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# ifdef HAVE_PTHREAD_H
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// Use POSIX threading...
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# include <pthread.h>
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typedef pthread_t Fl_Thread;
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extern "C" {
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typedef void *(Fl_Thread_Func)(void *);
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}
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static int fl_create_thread(Fl_Thread& t, Fl_Thread_Func* f, void* p) {
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return pthread_create((pthread_t*)&t, 0, f, p);
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}
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# elif defined(_WIN32) && !defined(__WATCOMC__) // Use Windows threading...
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# include <windows.h>
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# include <process.h>
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typedef unsigned long Fl_Thread;
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extern "C" {
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typedef void *(__cdecl Fl_Thread_Func)(void *);
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}
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static int fl_create_thread(Fl_Thread& t, Fl_Thread_Func* f, void* p) {
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return t = (Fl_Thread)_beginthread((void( __cdecl * )( void * ))f, 0, p);
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}
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# elif defined(__WATCOMC__)
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# include <process.h>
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typedef unsigned long Fl_Thread;
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extern "C" {
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typedef void *(__cdecl Fl_Thread_Func)(void *);
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}
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static int fl_create_thread(Fl_Thread& t, Fl_Thread_Func* f, void* p) {
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return t = (Fl_Thread)_beginthread((void(* )( void * ))f, 32000, p);
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}
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# endif // !HAVE_PTHREAD_H
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#endif // !Threads_h
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