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scoutos / prex-0.9.0 / usr / test / task / task.c @ 03e9c04a

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/*
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 * Copyright (c) 2005-2006, Kohsuke Ohtani
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 * All rights reserved.
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 *
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 * Redistribution and use in source and binary forms, with or without
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 * modification, are permitted provided that the following conditions
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 * are met:
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 * 1. Redistributions of source code must retain the above copyright
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 *    notice, this list of conditions and the following disclaimer.
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 * 2. Redistributions in binary form must reproduce the above copyright
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 *    notice, this list of conditions and the following disclaimer in the
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 *    documentation and/or other materials provided with the distribution.
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 * 3. Neither the name of the author nor the names of any co-contributors
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 *    may be used to endorse or promote products derived from this software
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 *    without specific prior written permission.
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 *
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 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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 * SUCH DAMAGE.
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 */
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/*
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 * task.c - test program for kernel task services.
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 */
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#include <sys/prex.h>
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#include <stdio.h>
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#include <stdlib.h>
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#define NR_THREADS 16
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static char stack[NR_THREADS][1024];
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static void
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test_thread(void)
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{
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        printf("New thread %x is started\n", (u_int)thread_self());
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        for (;;) {
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                timer_sleep(100, 0);
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                printf("@");
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        }
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}
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int
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main(int argc, char *argv[])
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{
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        task_t task;
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        thread_t t;
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        int i, error;
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        printf("Task test program\n");
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        sys_log("Task test program\n");
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        /*
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         * Boost priority of this thread
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         */
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        thread_setpri(thread_self(), 90);
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        /*
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         * Create test task
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         */
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#ifdef CONFIG_MMU
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        error = task_create(task_self(), VM_COPY, &task);
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#else
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        error = task_create(task_self(), VM_SHARE, &task);
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#endif
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        if (error) {
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                printf("task_create failed. error=%d\n", error);
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                exit(1);
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        }
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        /*
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         * Run threads
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         */
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        for (i = 0; i < NR_THREADS; i++) {
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                error = thread_create(task, &t);
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                printf("thread_create: error=%d\n", error);
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                error = thread_load(t, test_thread, stack[i]+1024);
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                printf("thread_load: error=%d\n", error);
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                thread_resume(t);
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        }
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        /*
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         * Sleep for a while
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         */
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        timer_sleep(1000, 0);
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        /*
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         * Suspend test task
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         */
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        printf("\nSuspend test task.\n");
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        error = task_suspend(task);
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        if (error)
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                panic("task suspend failed");
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        /*
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         * Sleep for a while
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         */
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        printf("Sleep\n");
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        timer_sleep(500, 0);
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        printf("\nResume test task.\n");
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        error = task_resume(task);
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        if (error)
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                panic("task resume failed");
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        /*
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         * Sleep for a while
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         */
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        timer_sleep(3000, 0);
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        printf("\nResume task, again.\n");
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        error = task_resume(task);
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        if (error)
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                printf("Error - OK!\n");
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        timer_sleep(1000, 0);
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        printf("\nTerminate task.\n");
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        task_terminate(task);
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        printf("\nTest OK!\n");
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        return 0;
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}