usr/test/thread/thread.c

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This source file includes following definitions.
thread_run
test_thread
main
   1 /*
   2  * Copyright (c) 2005, Kohsuke Ohtani
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  * 3. Neither the name of the author nor the names of any co-contributors
  14  *    may be used to endorse or promote products derived from this software
  15  *    without specific prior written permission.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  27  * SUCH DAMAGE.
  28  */
  29 
  30 /*
  31  * thread.c - test to run threads
  32  */
  33 
  34 #include <sys/prex.h>
  35 #include <stdio.h>
  36 
  37 static char stack[1024];
  38 
  39 static thread_t
  40 thread_run(void (*start)(void), char *stack)
  41 {
  42         thread_t t;
  43         int error;
  44 
  45         if ((error = thread_create(task_self(), &t)) != 0)
  46                 panic("thread_create() is failed");
  47 
  48         if ((error = thread_load(t, start, stack)) != 0)
  49                 panic("thread_load() is failed");
  50 
  51         if ((error = thread_resume(t)) != 0)
  52                 panic("thread_resume() is failed");
  53 
  54         return t;
  55 }
  56 
  57 static void
  58 test_thread(void)
  59 {
  60         printf("test thread is starting...\n");
  61         for (;;)
  62                 putchar('@');
  63 }
  64 
  65 int
  66 main(int argc, char *argv[])
  67 {
  68         int error;
  69         thread_t self, t;
  70 
  71         printf("Thread test program\n");
  72 
  73         self = thread_self();
  74 
  75         /*
  76          * Create new thread
  77          */
  78         printf("Start test thread\n");
  79         t = thread_run(test_thread, stack+1024);
  80 
  81         /*
  82          * Wait 1 sec
  83          */
  84         timer_sleep(3000, 0);
  85 
  86         /*
  87          * Suspend test thread
  88          */
  89         printf("\nSuspend test thread\n");
  90         error = thread_suspend(t);
  91 
  92         /*
  93          * Wait 2 sec
  94          */
  95         timer_sleep(2000, 0);
  96 
  97         /*
  98          * Resume test thread
  99          */
 100         printf("\nResume test thread\n");
 101         error = thread_resume(t);
 102 
 103         /*
 104          * Wait 100 msec
 105          */
 106         timer_sleep(100, 0);
 107 
 108         /*
 109          * Suspend test thread
 110          */
 111         thread_suspend(t);
 112 
 113         /*
 114          * Wait 2 sec
 115          */
 116         timer_sleep(2000, 0);
 117 
 118         /*
 119          * Resume test thread
 120          */
 121         thread_resume(t);
 122 
 123         /*
 124          * We can check this thread can run 10 times than test thread,
 125          */
 126         for (;;)
 127                 putchar('!');
 128 
 129         return 0;
 130 }
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root/usr/test/thread/thread.c

DEFINITIONS
