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Annotation of prex-old/usr/test/ipc_mt/ipc_mt.c, Revision 1.1.1.1

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:  * ipc_mt.c - IPC test for multi threaded servers.
                     32:  */
                     33:
                     34: #include <prex/prex.h>
                     35: #include <server/stdmsg.h>
                     36: #include <stdio.h>
                     37:
                     38: #define NR_THREADS     5
                     39:
                     40: static char stack[NR_THREADS][1024];
                     41:
                     42: /*
                     43:  * Run specified thread
                     44:  */
                     45: static int
                     46: thread_run(void (*start)(void), void *stack)
                     47: {
                     48:        thread_t th;
                     49:        int err;
                     50:
                     51:        err = thread_create(task_self(), &th);
                     52:        if (err)
                     53:                return err;
                     54:
                     55:        err = thread_load(th, start, stack);
                     56:        if (err)
                     57:                return err;
                     58:
                     59:        err = thread_resume(th);
                     60:        if (err)
                     61:                return err;
                     62:
                     63:
                     64:        return 0;
                     65: }
                     66:
                     67: /*
                     68:  * Receiver thread
                     69:  */
                     70: static void
                     71: receive_thread(void)
                     72: {
                     73:        struct msg msg;
                     74:        object_t obj;
                     75:        int err;
                     76:
                     77:        printf("Receiver thread is starting...\n");
                     78:
                     79:        thread_setprio(thread_self(), 240);
                     80:
                     81:        /*
                     82:         * Find objects.
                     83:         */
                     84:        err = object_lookup("/test/A", &obj);
                     85:
                     86:        for (;;) {
                     87:                /*
                     88:                 * Receive message from object.
                     89:                 */
                     90:                printf("Wait message.\n");
                     91:                msg_receive(obj, &msg, sizeof(msg));
                     92:
                     93:                printf("Message received.\n");
                     94:                /*
                     95:                 * Wait a sec.
                     96:                 */
                     97:                timer_sleep(1000, 0);
                     98:
                     99:                printf("Reply message.\n");
                    100:                msg_reply(obj, &msg, sizeof(msg));
                    101:
                    102:                for (;;);
                    103:        }
                    104: }
                    105:
                    106: int
                    107: main(int argc, char *argv[])
                    108: {
                    109:        object_t obj;
                    110:        int err, i;
                    111:
                    112:        printf("IPC test for multi threads\n");
                    113:
                    114:        /*
                    115:         * Create an object.
                    116:         */
                    117:        err = object_create("/test/A", &obj);
                    118:        if (err)
                    119:                panic("failed to create object");
                    120:
                    121:        /*
                    122:         * Start receiver thread.
                    123:         */
                    124:        for (i = 0; i < NR_THREADS; i++) {
                    125:                err = thread_run(receive_thread, stack[i] + 1024);
                    126:                if (err)
                    127:                        panic("failed to run thread");
                    128:        }
                    129:        printf("ok?\n");
                    130:        thread_setprio(thread_self(), 241);
                    131:        for (;;) ;
                    132:        return 0;
                    133: }