root / prex-0.9.0 / usr / test / ipc / ipc.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.c - IPC test program.
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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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static char stack[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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* Send thread
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*/
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static void |
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send_thread(void)
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{ |
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struct msg msg;
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object_t o1, o2; |
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int error;
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printf("Send thread is starting...\n");
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/*
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* Find objects.
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*/
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error = object_lookup("test-A", &o1);
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error = object_lookup("test-B", &o2);
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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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/*
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* Delete object A.
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*/
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printf("Delete object A\n");
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object_destroy(o1); |
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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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/*
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* Send message to object B.
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*/
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printf("Send message to object B.\n");
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msg_send(o2, &msg, sizeof(msg));
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printf("Send completed.\n");
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for (;;) ;
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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 o1, o2, o3; |
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struct msg msg;
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int error;
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printf("IPC test program\n");
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/*
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* Create two objects.
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*/
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error = object_create("test-A", &o1);
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error = object_create("test-B", &o2);
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/*
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* Create existing object.
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* This must be error.
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*/
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error = object_create("test-B", &o3);
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if (error == 0) |
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panic("Oops! object exist...");
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/*
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* Start sender thread.
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*/
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error = thread_run(send_thread, stack + 1024);
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if (error)
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panic("failed to run thread");
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/*
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* Wait message from non-existing object
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* This must be error.
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*/
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o3 = 0x12345678;
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error = msg_receive(o3, &msg, sizeof(msg));
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if (error == 0) |
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panic("Oops! invalid object...");
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/*
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* Wait message from object 'A'. However, it will be failed
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* because the sender thread will delete the object A.
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*/
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printf("Wait message from object A\n");
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error = msg_receive(o1, &msg, sizeof(msg));
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if (error)
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printf("Receive error!\n");
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else {
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printf("Rreceive ok!\n");
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msg_reply(o1, &msg, sizeof(msg));
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} |
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/*
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* Wait message from object 'B'.
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*/
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printf("Wait message from object B\n");
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error = msg_receive(o2, &msg, sizeof(msg));
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if (error)
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printf("Receive error!\n");
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else {
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printf("Receive ok!\n");
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msg_reply(o2, &msg, sizeof(msg));
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} |
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printf("Test completed...\n");
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return 0; |
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} |