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/*

 * Copyright (c) 2005, Kohsuke Ohtani

 * All rights reserved.

 *

 * Redistribution and use in source and binary forms, with or without

 * modification, are permitted provided that the following conditions

 * are met:

 * 1. Redistributions of source code must retain the above copyright

 *    notice, this list of conditions and the following disclaimer.

 * 2. Redistributions in binary form must reproduce the above copyright

 *    notice, this list of conditions and the following disclaimer in the

 *    documentation and/or other materials provided with the distribution.

 * 3. Neither the name of the author nor the names of any co-contributors

 *    may be used to endorse or promote products derived from this software

 *    without specific prior written permission.

 *

 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND

 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE

 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE

 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL

 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS

 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)

 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT

 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY

 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF

 * SUCH DAMAGE.

 */

/*

 * thread.c - test to run threads

 */

#include <sys/prex.h>

#include <stdio.h>

static char stack[1024];

static thread_t

thread_run(void (*start)(void), char *stack)

{

        thread_t t;

        int error;

        if ((error = thread_create(task_self(), &t)) != 0)

                panic("thread_create() is failed");

        if ((error = thread_load(t, start, stack)) != 0)

                panic("thread_load() is failed");

        if ((error = thread_resume(t)) != 0)

                panic("thread_resume() is failed");

        return t;

}

static void

test_thread(void)

{

        printf("test thread is starting...\n");

        for (;;)

                putchar('@');

}

int

main(int argc, char *argv[])

{

        int error;

        thread_t self, t;

        printf("Thread test program\n");

        self = thread_self();

        /*

         * Create new thread

         */

        printf("Start test thread\n");

        t = thread_run(test_thread, stack+1024);

        /*

         * Wait 1 sec

         */

        timer_sleep(3000, 0);

        /*

         * Suspend test thread

         */

        printf("\nSuspend test thread\n");

        error = thread_suspend(t);

        /*

         * Wait 2 sec

         */

        timer_sleep(2000, 0);

        /*

         * Resume test thread

         */

        printf("\nResume test thread\n");

        error = thread_resume(t);

        /*

         * Wait 100 msec

         */

        timer_sleep(100, 0);

        /*

         * Suspend test thread

         */

        thread_suspend(t);

        /*

         * Wait 2 sec

         */

        timer_sleep(2000, 0);

        /*

         * Resume test thread

         */

        thread_resume(t);

        /*

         * We can check this thread can run 10 times than test thread,

         */

        for (;;)

                putchar('!');

        return 0;

}