44 lines
947 B
C
44 lines
947 B
C
/*
|
|
* writeLatches.c
|
|
*
|
|
* Created on: Oct 12, 2009
|
|
* Author: sears
|
|
*/
|
|
#include <stasis/rw.h>
|
|
|
|
#include <pthread.h>
|
|
#include <stdio.h>
|
|
|
|
char * usage = "%s numthreads numops\n";
|
|
|
|
unsigned long numops;
|
|
|
|
static void* worker(void* arg) {
|
|
rwl * l = arg;
|
|
|
|
for(unsigned long i = 0; i < numops; i++) {
|
|
writelock(l, 0);
|
|
unlock(l);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int main(int argc, char * argv[]) {
|
|
if(argc != 3) { printf(usage, argv[0]); abort(); }
|
|
char * endptr;
|
|
unsigned long numthreads = strtoul(argv[1], &endptr, 10);
|
|
if(*endptr != 0) { printf(usage, argv[0]); abort(); }
|
|
numops= strtoul(argv[2], &endptr, 10) / numthreads;
|
|
if(*endptr != 0) { printf(usage, argv[0]); abort(); }
|
|
|
|
pthread_t workers[numthreads];
|
|
rwl * l[numthreads];
|
|
|
|
for(int i = 0; i < numthreads; i++) {
|
|
l[i] = initlock();
|
|
pthread_create(&workers[i], 0, worker, l[i]);
|
|
}
|
|
for(int i = 0; i < numthreads; i++) {
|
|
pthread_join(workers[i], 0);
|
|
}
|
|
}
|