?? share_memory.c
字號:
#include <sys/types.h>
#include <sys/ipc.h>
#include <sys/shm.h>
#include <stdio.h>
#include <stdlib.h>
#define BUFSZ 2048
int main()
{
int shmid;
char *shmadd;
if((shmid=shmget(IPC_PRIVATE,BUFSZ,0666))<0){
perror("shmget");
exit(1);
}
else
printf("created shared-memory: %d\n",shmid);
system("ipcs -m");
if((shmadd=shmat(shmid,0,0))<(char *)0){
perror("shmat");
exit(1);
}
else
printf("attached shared-memory\n");
system("ipcs -m");
if((shmdt(shmadd))<0){
perror("shmdt");
exit(1);
}
else
printf("deleted shared-memory\n");
system("ipcs -m");
exit(0);
}
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