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/* This is a test program for KDevelop GDB debugger support.
There are two worker threads, they are programmed to call
the 'foo' function in strictly interleaved fashion.
*/
#include <pthread.h>
#include <stdio.h>
#include <unistd.h>
int schedule[] = {1, 2};
int schedule_size = sizeof(schedule)/sizeof(schedule[0]);
int index = 0;
int exit = 0;
pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER;
pthread_cond_t condition = PTHREAD_COND_INITIALIZER;
void foo(int thread, int i)
{
printf ("hi there, from thread %d on iteration %d\n", thread, i);
}
void runner(int id)
{
for(int i = 0; i < 1000000 && !exit; ++i)
{
pthread_mutex_lock(&mutex);
while (schedule[index] != id) {
pthread_cond_wait(&condition, &mutex);
}
foo(id, i);
++index;
if (index >= schedule_size)
index = 0;
pthread_cond_broadcast(&condition);
pthread_mutex_unlock(&mutex);
sleep(1);
}
}
void* thread(void* p)
{
runner((int)p);
return NULL;
}
int main()
{
pthread_t p1, p2;
pthread_create(&p1, 0, &thread, (void*)1);
pthread_create(&p2, 0, &thread, (void*)2);
pthread_join(p1, 0);
pthread_join(p2, 0);
return 0;
}
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