Date: Thu, 18 Jan 2001 16:31:26 +0100 (CET) From: Michal Zapasnik <bigstar@astercity.net> To: freebsd-questions@freebsd.org Subject: System functions in BSD and others *nix systems. Message-ID: <Pine.BSF.4.21.0101181618110.570-100000@BS.home.astercity.net>
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Hi all
I was writeing simple program for school using system funcions
msgget, msgsnd and msgrcv. This program run fine on other OS
i tested it on debian,RedHat and SunOS on my FreeBSD box
the resaults are bad. Are the system funcion different in FBSD?
This is my simple program
--- queue.h ---
#define ONE ftok("/home/bigstar/one.c" , '0')
struct data {
int mtype;
int mtext;
};
--- one.c ---
#include <sys/types.h>
#include <sys/ipc.h>
#include <sys/msg.h>
#include <stdio.h>
#include <unistd.h>
#include "queue.h"
int main()
{
int q, i;
struct data msg;
q=msgget(ONE,IPC_CREAT|0660);
msg.mtype = 1;
msg.mtext = 5;
for (i=0; i<10; i++)
{
msgsnd(q, &msg, sizeof(msg), 0);
sleep(1);
}
}
--- two.c ---
#include <sys/types.h>
#include <sys/ipc.h>
#include <sys/msg.h>
#include <stdio.h>
#include <unistd.h>
#include "queue.h"
int main()
{
int q, i;
struct data msg;
q=msgget(ONE,IPC_CREAT|0666);
for (i=0; i<10; i++)
{
msgrcv(q, &msg, sizeof(msg), 0, 0);
printf("I recive: %d \n", msg.mtext);
}
}
When i run ./one | ./two on FreeBSD i get
I recive: 671473920
and sa on as i wrote on other tested OS it works fine.
Anyone know where the problem is?
BS.
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