?? ctl.c
字號:
#include "unpipc.h"
int
main(int argc, char **argv)
{
int msqid;
struct msqid_ds info;
struct msgbuf buf;
msqid = Msgget(IPC_PRIVATE, SVMSG_MODE | IPC_CREAT);
buf.mtype = 1;
buf.mtext[0] = 1;
Msgsnd(msqid, &buf, 1, 0);
Msgctl(msqid, IPC_STAT, &info);
printf("read-write: %03o, cbytes = %lu, qnum = %lu, qbytes = %lu\n",
info.msg_perm.mode & 0777, (ulong_t) info.msg_cbytes,
(ulong_t) info.msg_qnum, (ulong_t) info.msg_qbytes);
system("ipcs -q");
Msgctl(msqid, IPC_RMID, NULL);
exit(0);
}
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