Annotation of prex-old/usr/test/ipc/ipc.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: * ipc.c - IPC test program.
! 32: */
! 33:
! 34: #include <prex/prex.h>
! 35: #include <server/stdmsg.h>
! 36: #include <stdio.h>
! 37:
! 38: static char stack[1024];
! 39:
! 40: /*
! 41: * Run specified thread
! 42: */
! 43: static int
! 44: thread_run(void (*start)(void), void *stack)
! 45: {
! 46: thread_t th;
! 47: int err;
! 48:
! 49: err = thread_create(task_self(), &th);
! 50: if (err)
! 51: return err;
! 52:
! 53: err = thread_load(th, start, stack);
! 54: if (err)
! 55: return err;
! 56:
! 57: err = thread_resume(th);
! 58: if (err)
! 59: return err;
! 60:
! 61: return 0;
! 62: }
! 63:
! 64: /*
! 65: * Send thread
! 66: */
! 67: static void
! 68: send_thread(void)
! 69: {
! 70: struct msg msg;
! 71: object_t o1, o2;
! 72: int err;
! 73:
! 74: printf("Send thread is starting...\n");
! 75:
! 76: /*
! 77: * Find objects.
! 78: */
! 79: err = object_lookup("/test/A", &o1);
! 80: err = object_lookup("/test/B", &o2);
! 81:
! 82: /*
! 83: * Wait a sec.
! 84: */
! 85: timer_sleep(1000, 0);
! 86:
! 87: /*
! 88: * Delete object A.
! 89: */
! 90: printf("Delete object A\n");
! 91: object_destroy(o1);
! 92:
! 93: /*
! 94: * Wait a sec.
! 95: */
! 96: timer_sleep(1000, 0);
! 97:
! 98: /*
! 99: * Send message to object B.
! 100: */
! 101: printf("Send message to object B.\n");
! 102: msg_send(o2, &msg, sizeof(msg));
! 103:
! 104: printf("Send completed.\n");
! 105: for (;;) ;
! 106: }
! 107:
! 108: int
! 109: main(int argc, char *argv[])
! 110: {
! 111: object_t o1, o2, o3;
! 112: struct msg msg;
! 113: int err;
! 114:
! 115: printf("IPC test program\n");
! 116:
! 117: /*
! 118: * Create two objects.
! 119: */
! 120: err = object_create("/test/A", &o1);
! 121: err = object_create("/test/B", &o2);
! 122:
! 123: /*
! 124: * Create existing object.
! 125: * This must be error.
! 126: */
! 127: err = object_create("/test/B", &o3);
! 128: if (err == 0)
! 129: panic("Oops! object exist...");
! 130:
! 131: /*
! 132: * Start sender thread.
! 133: */
! 134: err = thread_run(send_thread, stack + 1024);
! 135: if (err)
! 136: panic("failed to run thread");
! 137:
! 138: /*
! 139: * Wait message from non-existing object
! 140: * This must be error.
! 141: */
! 142: o3 = 0x12345678;
! 143: err = msg_receive(o3, &msg, sizeof(msg));
! 144: if (err == 0)
! 145: panic("Oops! invalid object...");
! 146:
! 147: /*
! 148: * Wait message from object 'A'. However, it will be failed
! 149: * because the sender thread will delete the object A.
! 150: */
! 151: printf("Wait message from object A\n");
! 152: err = msg_receive(o1, &msg, sizeof(msg));
! 153: if (err)
! 154: printf("Receive err!\n");
! 155: else {
! 156: printf("Rreceive ok!\n");
! 157: msg_reply(o1, &msg, sizeof(msg));
! 158: }
! 159:
! 160: /*
! 161: * Wait message from object 'B'.
! 162: */
! 163: printf("Wait message from object B\n");
! 164: err = msg_receive(o2, &msg, sizeof(msg));
! 165: if (err)
! 166: printf("Receive err!\n");
! 167: else {
! 168: printf("Receive ok!\n");
! 169: msg_reply(o2, &msg, sizeof(msg));
! 170: }
! 171:
! 172: printf("Test completed...\n");
! 173: return 0;
! 174: }
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