diff options
Diffstat (limited to 'test')
| -rw-r--r-- | test/threads.cxx | 76 |
1 files changed, 54 insertions, 22 deletions
diff --git a/test/threads.cxx b/test/threads.cxx index 3412bb08a..9c6f768f6 100644 --- a/test/threads.cxx +++ b/test/threads.cxx @@ -20,7 +20,7 @@ # include <FL/Fl.H> # include <FL/Fl_Double_Window.H> # include <FL/Fl_Terminal.H> -# include <FL/Fl_Value_Output.H> +# include <FL/Fl_Output.H> # include <FL/fl_ask.H> # include "threads.h" # include <stdio.h> @@ -37,39 +37,45 @@ struct prime { int idx; // thread index: 0 or {1..6} int done; // set to 1 after it was worked on Fl_Terminal *terminal; // widget to write output to - Fl_Value_Output *value; // highest prime + unsigned long max_prime; // highest prime found so far + Fl_Output *value; // highest prime output widget std::vector<unsigned long> primes; // collected primes within time frame }; Fl_Thread prime_thread; Fl_Terminal *tty1, *tty2; -Fl_Value_Output *value1, *value2; +Fl_Output *value1, *value2; int start2 = 3; void magic_number_cb(void *p) { - Fl_Value_Output *w = (Fl_Value_Output*)p; + Fl_Output *w = (Fl_Output*)p; w->labelcolor(FL_RED); - w->redraw_label(); + w->parent()->redraw(); + // if (w == value1) Fl::hide_all_windows(); // TEST: terminate early to measure time } // This is called indirectly by Fl::awake(update_handler, (void *)prime) // in the context of the main (FLTK GUI) thread. void update_handler(void *v) { + char max_buf[32]; struct prime *pr = (struct prime *)v; for (auto n : pr->primes) { - pr->terminal->printf("prime: %10u\n", n); - if (n > pr->value->value()) - pr->value->value(n); + pr->terminal->printf("prime: %10lu\n", n); + if (n > pr->max_prime) + pr->max_prime = n; } + snprintf(max_buf, sizeof(max_buf), "%9lu", pr->max_prime); + pr->value->value(max_buf); pr->done = 1; } extern "C" void* prime_func(void* p) { Fl_Terminal* terminal = (Fl_Terminal*)p; - Fl_Value_Output *value; + Fl_Output *value; unsigned long n; + unsigned long max_value = 0; int step; char proud = 0; @@ -91,11 +97,12 @@ extern "C" void* prime_func(void* p) { // initialize alternate buffers (struct prime) to store primes struct prime pr[2]; - pr[0].done = 0; - pr[1].done = 1; - pr[0].terminal = pr[1].terminal = terminal; - pr[0].idx = pr[1].idx = n/2 - 1; - pr[0].value = pr[1].value = value; + pr[0].idx = pr[1].idx = n/2 - 1; + pr[0].done = 0; + pr[1].done = 1; + pr[0].terminal = pr[1].terminal = terminal; + pr[0].max_prime = pr[1].max_prime = 0; + pr[0].value = pr[1].value = value; pr[0].primes.clear(); pr[1].primes.clear(); int pi = 0; // prime buffer index @@ -115,7 +122,10 @@ extern "C" void* prime_func(void* p) { int pp; int hn = (int)sqrt((double)n); - for (pp = 3; pp <= hn; pp += 2) if ( n%pp == 0 ) break; + for (pp = 3; pp <= hn; pp += 2) { + if (n % pp == 0) + break; + } if (pp > hn) { // n is a prime @@ -133,9 +143,13 @@ extern "C" void* prime_func(void* p) { pr[pi].primes.clear(); // clear primes } + if (n > max_value) { + pr[pi].max_prime = n; + } + n += step; - if (n > 5*1000*1000 && !proud) { + if (n > 5 * 1000 * 1000 && !proud) { proud = 1; Fl::awake(magic_number_cb, value); } @@ -151,21 +165,38 @@ extern "C" void* prime_func(void* p) { return 0L; } +// close all windows when the user closes one of the windows + +void close_cb(Fl_Widget *w, void *v) { + Fl::hide_all_windows(); + printf("Max prime number with 1 thread : %s\n", value1->value()); + printf("Max prime number with 6 threads: %s\n", value2->value()); + return; +} + int main(int argc, char **argv) { // First window: single thread - Fl_Double_Window* w = new Fl_Double_Window(300, 200, "Single Thread"); - tty1 = new Fl_Terminal(0, 0, 300, 175); + Fl_Double_Window* w = new Fl_Double_Window(200, 200, "Single Thread"); + tty1 = new Fl_Terminal(0, 0, 200, 175); + tty1->color(FL_BACKGROUND2_COLOR); + tty1->textcolor(FL_FOREGROUND_COLOR); w->resizable(tty1); - value1 = new Fl_Value_Output(100, 175, 200, 25, "Max Prime:"); + value1 = new Fl_Output(100, 175, 98, 23, "Max Prime:"); + value1->textfont(FL_COURIER); + w->callback(close_cb); w->end(); w->show(argc, argv); // Second window: multiple threads - w = new Fl_Double_Window(300, 200, "Six Threads"); - tty2 = new Fl_Terminal(0, 0, 300, 175); + w = new Fl_Double_Window(200, 200, "Six Threads"); + tty2 = new Fl_Terminal(0, 0, 200, 175); + tty2->color(FL_BACKGROUND2_COLOR); + tty2->textcolor(FL_FOREGROUND_COLOR); w->resizable(tty2); - value2 = new Fl_Value_Output(100, 175, 200, 25, "Max Prime:"); + value2 = new Fl_Output(100, 175, 98, 23, "Max Prime:"); + value2->textfont(FL_COURIER); + w->callback(close_cb); w->end(); w->show(); @@ -181,6 +212,7 @@ int main(int argc, char **argv) // Start threads... // One thread displaying in one terminal + fl_create_thread(prime_thread, prime_func, tty1); // Six threads displaying in another terminal |