147 lines
3.3 KiB
C
147 lines
3.3 KiB
C
/*
|
|
* Copyright (c) 2000, 2001, 2002, 2003, 2004, 2005, 2008, 2009
|
|
* The President and Fellows of Harvard College.
|
|
*
|
|
* 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 University nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE UNIVERSITY 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 UNIVERSITY 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 test code.
|
|
*/
|
|
#include <types.h>
|
|
#include <lib.h>
|
|
#include <thread.h>
|
|
#include <synch.h>
|
|
#include <test.h>
|
|
|
|
#define NTHREADS 8
|
|
|
|
static struct semaphore *tsem = NULL;
|
|
|
|
static
|
|
void
|
|
init_sem(void)
|
|
{
|
|
if (tsem==NULL) {
|
|
tsem = sem_create("tsem", 0);
|
|
if (tsem == NULL) {
|
|
panic("threadtest: sem_create failed\n");
|
|
}
|
|
}
|
|
}
|
|
|
|
static
|
|
void
|
|
loudthread(void *junk, unsigned long num)
|
|
{
|
|
int ch = '0' + num;
|
|
int i;
|
|
|
|
(void)junk;
|
|
|
|
for (i=0; i<120; i++) {
|
|
putch(ch);
|
|
}
|
|
V(tsem);
|
|
}
|
|
|
|
/*
|
|
* The idea with this is that you should see
|
|
*
|
|
* 01234567 <pause> 01234567
|
|
*
|
|
* (possibly with the numbers in different orders)
|
|
*
|
|
* The delay loop is supposed to be long enough that it should be clear
|
|
* if either timeslicing or the scheduler is not working right.
|
|
*/
|
|
static
|
|
void
|
|
quietthread(void *junk, unsigned long num)
|
|
{
|
|
int ch = '0' + num;
|
|
volatile int i;
|
|
|
|
(void)junk;
|
|
|
|
putch(ch);
|
|
for (i=0; i<200000; i++);
|
|
putch(ch);
|
|
|
|
V(tsem);
|
|
}
|
|
|
|
static
|
|
void
|
|
runthreads(int doloud)
|
|
{
|
|
char name[16];
|
|
int i, result;
|
|
|
|
for (i=0; i<NTHREADS; i++) {
|
|
snprintf(name, sizeof(name), "threadtest%d", i);
|
|
result = thread_fork(name, NULL,
|
|
doloud ? loudthread : quietthread,
|
|
NULL, i);
|
|
if (result) {
|
|
panic("threadtest: thread_fork failed %s)\n",
|
|
strerror(result));
|
|
}
|
|
}
|
|
|
|
for (i=0; i<NTHREADS; i++) {
|
|
P(tsem);
|
|
}
|
|
}
|
|
|
|
|
|
int
|
|
threadtest(int nargs, char **args)
|
|
{
|
|
(void)nargs;
|
|
(void)args;
|
|
|
|
init_sem();
|
|
kprintf("Starting thread test...\n");
|
|
runthreads(1);
|
|
kprintf("\nThread test done.\n");
|
|
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
threadtest2(int nargs, char **args)
|
|
{
|
|
(void)nargs;
|
|
(void)args;
|
|
|
|
init_sem();
|
|
kprintf("Starting thread test 2...\n");
|
|
runthreads(0);
|
|
kprintf("\nThread test 2 done.\n");
|
|
|
|
return 0;
|
|
}
|