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/*
atlc - arbitrary transmission line calculator, for the analysis of
transmission lines are directional couplers.
Copyright (C) 2002. Dr. David Kirkby, PhD (G8WRB).
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either package_version 2
of the License, or (at your option) any later package_version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
USA.
Dr. David Kirkby, e-mail drkirkby@ntlworld.com
*/
#include "config.h"
#ifdef HAVE_STDIO_H
#include <stdio.h>
#endif
#ifdef HAVE_STDIO_H
#include <stdlib.h>
#endif
#ifdef ENABLE_POSIX_THREADS
#include <pthread.h>
void *increment_a(void *arg);
void *increment_b(void *arg);
int finalise(int, int);
int r1 = 0, r2 = 0, r3 = 0;
pthread_mutex_t r3_mutex;
#endif /* ifdef ENABLE_POSIX_THREADS */
int main()
{
#ifdef ENABLE_POSIX_THREADS
pthread_t thread1, thread2;
int counter=0, i;
pthread_mutex_init(&r3_mutex, NULL);
r3 = 4;
for(i=1; i<10000; ++i)
{
if( pthread_create(&thread1, NULL, increment_a, (void *) &r1) != 0)
{
perror("Thread 1 not created properly");
exit(1);
}
if( pthread_create(&thread2, NULL, increment_b, (void *) &r2) != 0)
{
perror("Thread 2 not created properly");
exit(1);
}
if(pthread_join(thread1, NULL) != 0)
{
perror("Thread 1 did not join properly");
exit (1);
}
if(pthread_join(thread2, NULL) != 0)
{
perror("Thread 2 did not join properly");
exit (1);
}
counter+=finalise(r1, r2);
}
if (counter == 399960000)
return 0;
else
return 1;
#else
return 77;
#endif
}
#ifdef ENABLE_POSIX_THREADS
void *increment_a(void *arg)
{
int i,x;
int *pnum_times=(int *) arg;
if( pthread_mutex_lock(&r3_mutex) != 0)
{
perror("pthread_mutex_lock failed");
exit(1);
}
if (r3 > 3) {
x = r3;
r3--;
} else {
x = 1;
}
if( pthread_mutex_unlock(&r3_mutex) != 0)
{
perror("pthread_mutex_unlock failed");
exit(1);
}
for (i = 0; i < 4; i++) {
(*pnum_times)++;
}
return (NULL);
}
void *increment_b(void *arg)
{
int i,x;
int *pnum_times=(int *) arg;
if( pthread_mutex_lock(&r3_mutex) != 0)
{
perror("pthread_mutex_lock failed");
exit(1);
}
if (r3 > 3) {
x = r3;
r3--;
} else {
x = 1;
}
if(pthread_mutex_unlock(&r3_mutex) != 0)
{
perror("pthread_mutex_unlock failed");
exit(1);
}
for (i = 0; i < 4; i++) {
(*pnum_times)++;
}
return (NULL);
}
int finalise(int one_times, int another_times)
{
int total;
total = one_times + another_times;
return(total);
}
#endif
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