/*-
* Copyright (c) 2005, Kohsuke Ohtani
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the author nor the names of any co-contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
/*
* ipc.c - IPC test program.
*/
#include <prex/prex.h>
#include <server/stdmsg.h>
#include <stdio.h>
static char stack[1024];
/*
* Run specified thread
*/
static int
thread_run(void (*start)(void), void *stack)
{
thread_t th;
int err;
err = thread_create(task_self(), &th);
if (err)
return err;
err = thread_load(th, start, stack);
if (err)
return err;
err = thread_resume(th);
if (err)
return err;
return 0;
}
/*
* Send thread
*/
static void
send_thread(void)
{
struct msg msg;
object_t o1, o2;
int err;
printf("Send thread is starting...\n");
/*
* Find objects.
*/
err = object_lookup("/test/A", &o1);
err = object_lookup("/test/B", &o2);
/*
* Wait a sec.
*/
timer_sleep(1000, 0);
/*
* Delete object A.
*/
printf("Delete object A\n");
object_destroy(o1);
/*
* Wait a sec.
*/
timer_sleep(1000, 0);
/*
* Send message to object B.
*/
printf("Send message to object B.\n");
msg_send(o2, &msg, sizeof(msg));
printf("Send completed.\n");
for (;;) ;
}
int
main(int argc, char *argv[])
{
object_t o1, o2, o3;
struct msg msg;
int err;
printf("IPC test program\n");
/*
* Create two objects.
*/
err = object_create("/test/A", &o1);
err = object_create("/test/B", &o2);
/*
* Create existing object.
* This must be error.
*/
err = object_create("/test/B", &o3);
if (err == 0)
panic("Oops! object exist...");
/*
* Start sender thread.
*/
err = thread_run(send_thread, stack + 1024);
if (err)
panic("failed to run thread");
/*
* Wait message from non-existing object
* This must be error.
*/
o3 = 0x12345678;
err = msg_receive(o3, &msg, sizeof(msg));
if (err == 0)
panic("Oops! invalid object...");
/*
* Wait message from object 'A'. However, it will be failed
* because the sender thread will delete the object A.
*/
printf("Wait message from object A\n");
err = msg_receive(o1, &msg, sizeof(msg));
if (err)
printf("Receive err!\n");
else {
printf("Rreceive ok!\n");
msg_reply(o1, &msg, sizeof(msg));
}
/*
* Wait message from object 'B'.
*/
printf("Wait message from object B\n");
err = msg_receive(o2, &msg, sizeof(msg));
if (err)
printf("Receive err!\n");
else {
printf("Receive ok!\n");
msg_reply(o2, &msg, sizeof(msg));
}
printf("Test completed...\n");
return 0;
}