#include <time.h>
#include <fcntl.h>
#include <unistd.h>
#include <sys/mman.h>
#include <stdio.h>
#include <stdio.h>
#include <errno.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/errno.h>
#include <semaphore.h>

#define MMAP_SIZE 5000

void usage() {
	fprintf(stdout, "usage.....\n");
	fprintf(stdout, " shm_delete object-file\n");
	fprintf(stdout, "ex) shm_delete hoge\n");
	exit(0);
}

int main(int argc, char **argv) {
	char shm_object[1024];
	int ret, rete;

	if (argc <= 1) usage();

	/* BSD = not "/" */
	/* sprintf(shm_object, "/%s", argv[1]); */
	sprintf(shm_object, "%s", argv[1]);

	ret = shm_unlink(shm_object);
	rete = errno;

	printf("ret = %d(%d)\n", ret, rete );
}