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

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/*-
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 * Copyright (c) 2005, 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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 * ipc_mt.c - IPC test for multi threaded servers.
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 */
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#include <sys/prex.h>
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#include <ipc/ipc.h>
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#include <stdio.h>
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#define NR_THREADS        5
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static char stack[NR_THREADS][1024];
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/*
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 * Run specified thread
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 */
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static int
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thread_run(void (*start)(void), void *stack)
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{
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        thread_t t;
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        int error;
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        error = thread_create(task_self(), &t);
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        if (error)
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                return error;
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        error = thread_load(t, start, stack);
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        if (error)
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                return error;
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        error = thread_resume(t);
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        if (error)
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                return error;
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        return 0;
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}
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/*
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 * Receiver thread
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 */
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static void
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receive_thread(void)
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{
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        struct msg msg;
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        object_t obj;
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        int error;
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        printf("Receiver thread is starting...\n");
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        thread_setpri(thread_self(), 240);
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        /*
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         * Find objects.
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         */
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        error = object_lookup("test-A", &obj);
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        for (;;) {
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                /*
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                 * Receive message from object.
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                 */
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                printf("Wait message.\n");
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                msg_receive(obj, &msg, sizeof(msg));
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                printf("Message received.\n");
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                /*
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                 * Wait a sec.
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                 */
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                timer_sleep(1000, 0);
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                printf("Reply message.\n");
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                msg_reply(obj, &msg, sizeof(msg));
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                for (;;);
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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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        object_t obj;
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        int error, i;
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        printf("IPC test for multi threads\n");
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        /*
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         * Create an object.
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         */
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        error = object_create("test-A", &obj);
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        if (error)
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                panic("failed to create object");
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        /*
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         * Start receiver thread.
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         */
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        for (i = 0; i < NR_THREADS; i++) {
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                error = thread_run(receive_thread, stack[i] + 1024);
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                if (error)
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                        panic("failed to run thread");
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        }
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        printf("ok?\n");
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        thread_setpri(thread_self(), 241);
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        for (;;)
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                thread_yield();
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        return 0;
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}