uspace/app/tester/thread/thread1.c

   1 /*
   2  * Copyright (c) 2005 Jakub Vana
   3  * Copyright (c) 2005 Jakub Jermar
   4  * All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  *
  10  * - Redistributions of source code must retain the above copyright
  11  *   notice, this list of conditions and the following disclaimer.
  12  * - Redistributions in binary form must reproduce the above copyright
  13  *   notice, this list of conditions and the following disclaimer in the
  14  *   documentation and/or other materials provided with the distribution.
  15  * - The name of the author may not be used to endorse or promote products
  16  *   derived from this software without specific prior written permission.
  17  *
  18  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  19  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  20  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  21  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  22  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  23  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  24  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  25  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  26  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  27  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  28  */
  29
  30 #define THREADS  20
  31 #define DELAY    10
  32
  33 #include <stdatomic.h>
  34 #include <errno.h>
  35 #include <fibril.h>
  36 #include <fibril_synch.h>
  37 #include <stdio.h>
  38 #include <stddef.h>
  39 #include <inttypes.h>
  40 #include "../tester.h"
  41
  42 static atomic_bool finish;
  43
  44 static FIBRIL_SEMAPHORE_INITIALIZE(threads_finished, 0);
  45
  46 static errno_t threadtest(void *data)
  47 {
  48         fibril_detach(fibril_get_id());
  49
  50         while (!atomic_load(&finish))
  51                 fibril_usleep(100000);
  52
  53         fibril_semaphore_up(&threads_finished);
  54         return EOK;
  55 }
  56
  57 const char *test_thread1(void)
  58 {
  59         int total = 0;
  60
  61         atomic_store(&finish, false);
  62
  63         fibril_test_spawn_runners(THREADS);
  64
  65         TPRINTF("Creating threads");
  66         for (int i = 0; i < THREADS; i++) {
  67                 fid_t f = fibril_create(threadtest, NULL);
  68                 if (!f) {
  69                         TPRINTF("\nCould not create thread %u\n", i);
  70                         break;
  71                 }
  72                 fibril_add_ready(f);
  73                 TPRINTF(".");
  74                 total++;
  75         }
  76
  77         TPRINTF("\nRunning threads for %u seconds...", DELAY);
  78         fibril_sleep(DELAY);
  79         TPRINTF("\n");
  80
  81         atomic_store(&finish, true);
  82         for (int i = 0; i < total; i++) {
  83                 TPRINTF("Threads left: %d\n", total - i);
  84                 fibril_semaphore_down(&threads_finished);
  85         }
  86
  87         return NULL;
  88 }