rmipcs.cpp

uclinux的进程间通信例子

//antony for rm ipcs utlity
#include <stdlib.h>
#include <errno.h>
#include <sys/types.h>
#include <sys/ipc.h>
#include <sys/sem.h>
#include <sys/shm.h>
#include "../include/mylog.h"

int main(int argc, char **argv)
{
	int shmid;
	int semid;
	key_t shmkey;
	key_t semkey;

	if(argc != 4)
	{
		mylog("useage: rmipcs shmfile semfile project_id");
		exit(0);
	}

	char *pShmfile = argv[1];
	char *pSemfile = argv[2];

	int proj_id = atoi(argv[3]);

	shmkey = ftok(pShmfile, proj_id);
	shmid =  shmget(shmkey, 0, 0640);

	printf("shmid=%d\n", shmid);

	semkey = ftok(pSemfile, proj_id);
	semid =  semget(semkey, 0, 0640);
	printf("semid=%d\n",semid);

}