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Annotation of prex-old/usr/test/thread/thread.c, Revision 1.1

1.1     ! nbrk        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 <prex/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 th;
        !            43:        int err;
        !            44:
        !            45:        if ((err = thread_create(task_self(), &th)) != 0)
        !            46:                panic("thread_create() is failed");
        !            47:
        !            48:        if ((err = thread_load(th, start, stack)) != 0)
        !            49:                panic("thread_load() is failed");
        !            50:
        !            51:        if ((err = thread_resume(th)) != 0)
        !            52:                panic("thread_resume() is failed");
        !            53:
        !            54:        return th;
        !            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 err;
        !            69:        thread_t self, th;
        !            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:        th = thread_run(test_thread, stack+1024);
        !            80:
        !            81:        /*
        !            82:         * Wait 1 sec
        !            83:         */
        !            84:        timer_sleep(1000, 0);
        !            85:
        !            86:        /*
        !            87:         * Suspend test thread
        !            88:         */
        !            89:        printf("\nSuspend test thread\n");
        !            90:        err = thread_suspend(th);
        !            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:        err = thread_resume(th);
        !           102:
        !           103:        /*
        !           104:         * Wait 100 msec
        !           105:         */
        !           106:        timer_sleep(100, 0);
        !           107:
        !           108:        /*
        !           109:         * Suspend test thread
        !           110:         */
        !           111:        thread_suspend(th);
        !           112:
        !           113:        /*
        !           114:         * Wait 2 sec
        !           115:         */
        !           116:        timer_sleep(2000, 0);
        !           117:
        !           118:        /*
        !           119:         * Resume test thread
        !           120:         */
        !           121:        thread_resume(th);
        !           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: }