File: [local] / prex / usr / test / thread / thread.c (download)
Revision 1.1.1.1 (vendor branch), Tue Aug 19 12:47:03 2008 UTC (16 years ago) by nbrk
Branch: MAIN, KOHSUKE
CVS Tags: PREX_0_8_BASE, HEAD Changes since 1.1: +0 -0 lines
Initial import of Prex, Portable Real-time Embedded POSIX microkernel system.
I have totally new directions in my development (more focused on real hardware, not virtual one).
Old hacks are available in prex-old module. They will be carefully re-designed and merged soon.
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/*
* 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.
*/
/*
* thread.c - test to run threads
*/
#include <prex/prex.h>
#include <stdio.h>
static char stack[1024];
static thread_t
thread_run(void (*start)(void), char *stack)
{
thread_t th;
int err;
if ((err = thread_create(task_self(), &th)) != 0)
panic("thread_create() is failed");
if ((err = thread_load(th, start, stack)) != 0)
panic("thread_load() is failed");
if ((err = thread_resume(th)) != 0)
panic("thread_resume() is failed");
return th;
}
static void
test_thread(void)
{
printf("test thread is starting...\n");
for (;;)
putchar('@');
}
int
main(int argc, char *argv[])
{
int err;
thread_t self, th;
printf("Thread test program\n");
self = thread_self();
/*
* Create new thread
*/
printf("Start test thread\n");
th = thread_run(test_thread, stack+1024);
/*
* Wait 1 sec
*/
timer_sleep(1000, 0);
/*
* Suspend test thread
*/
printf("\nSuspend test thread\n");
err = thread_suspend(th);
/*
* Wait 2 sec
*/
timer_sleep(2000, 0);
/*
* Resume test thread
*/
printf("\nResume test thread\n");
err = thread_resume(th);
/*
* Wait 100 msec
*/
timer_sleep(100, 0);
/*
* Suspend test thread
*/
thread_suspend(th);
/*
* Wait 2 sec
*/
timer_sleep(2000, 0);
/*
* Resume test thread
*/
thread_resume(th);
/*
* We can check this thread can run 10 times than test thread,
*/
for (;;)
putchar('!');
return 0;
}