stasis-aries-wal/benchmarks/multicore/smallLogEntry.c

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/*
* smallLogEntry.c
*
* Created on: Oct 12, 2009
* Author: sears
*/
#include <stasis/logger/logger2.h>
#include <stasis/logger/safeWrites.h>
#include <stasis/flags.h>
#include <pthread.h>
#include <stdio.h>
char * usage = "%s numthreads numops\n";
stasis_log_t * l;
static void* worker(void* arg) {
unsigned long numops = *(unsigned long*) arg;
LogEntry e;
e.LSN = 0;
e.prevLSN = 0;
e.type = UPDATELOG;
e.xid = 0;
e.update.arg_size = 0;
e.update.funcID = 0;
e.update.page = INVALID_PAGE;
for(unsigned long i = 0; i < numops; i++) {
l->write_entry(l, &e);
}
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(); }
unsigned long numops= strtoul(argv[2], &endptr, 10) / numthreads;
if(*endptr != 0) { printf(usage, argv[0]); abort(); }
pthread_t workers[numthreads];
l = stasis_log_safe_writes_open(stasis_log_file_name, stasis_log_file_mode, stasis_log_file_permissions, 0);
for(int i = 0; i < numthreads; i++) {
pthread_create(&workers[i], 0, worker, &numops);
}
for(int i = 0; i < numthreads; i++) {
pthread_join(workers[i], 0);
}
}