3cb5ebe0e8
git-svn-id: file:///fltk/svn/fltk/branches/branch-1.1@1513 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
66 lines
1.6 KiB
C++
66 lines
1.6 KiB
C++
#include <fltk/Fl.h>
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#include <fltk/Fl_Window.h>
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#include <fltk/Fl_Browser.h>
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#include <fltk/Fl_Threads.h>
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#include <stdio.h>
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Fl_Thread prime_thread;
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Fl_Browser *browser1, *browser2;
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void* prime_func(void* p)
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{
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Fl_Browser* browser = (Fl_Browser*) p;
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// very loosy prime number calculator !
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for (int n=1000000; ; n++) {
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int p;
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for (p=2; p<n; p++) if ( n%p == 0 ) break;
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if (p == n) {
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char s[128];
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sprintf(s, "%d", n);
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Fl::lock();
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browser->add(s);
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Fl::unlock();
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Fl::awake((void*) (browser == browser1? p:0)); // Cause the browser to redraw ...
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}
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}
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return 0;
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}
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int main()
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{
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Fl_Window* w = new Fl_Window(200, 300, "Multithread test");
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browser1 = new Fl_Browser(0, 0, 200, 300);
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w->end();
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w->show();
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w = new Fl_Window(200, 300, "Multithread test");
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browser2 = new Fl_Browser(0, 0, 200, 300);
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w->end();
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w->show();
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browser1->add("Prime numbers :");
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browser2->add("Prime numbers :");
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Fl::lock(); // you must do this before creating any threads!
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// One thread displaying in one browser
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fl_create_thread(prime_thread, prime_func, browser1);
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// Several threads displaying in another browser
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fl_create_thread(prime_thread, prime_func, browser2);
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fl_create_thread(prime_thread, prime_func, browser2);
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fl_create_thread(prime_thread, prime_func, browser2);
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fl_create_thread(prime_thread, prime_func, browser2);
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fl_create_thread(prime_thread, prime_func, browser2);
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fl_create_thread(prime_thread, prime_func, browser2);
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// Fl::run();
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while (w->visible()) {
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Fl::wait();
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void* m = Fl::thread_message();
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if (m) printf("Recieved message: %d\n", int(m));
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}
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return 0;
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}
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