some-usable-scripts/c/old/semaphores_manuel_exemples/FileeDeMessage/msgProd.c

59 lines
951 B
C

/* msgProd.c.c
works with msgCons.c
Create a message queue et saisit un message et un type et envoie le message
*/
/* Includes */
#include <sys/types.h>
#include <sys/ipc.h>
#include <sys/msg.h>
#include <string.h>
#include <stdio.h>
/* Defines */
#define cle 17
/* Global variables */
int msqid;
#define TAILLE_NOM 15
typedef struct msgbuf_EXD
{
long mtype;
char text [30];
} MSGP;;
int main()
{
/* Create the message queue */
msqid = msgget(cle, IPC_CREAT|IPC_EXCL|0660);
/* Fill in the structure */
MSGP m1,m2,m3;
int type;
char mess[20 ];
printf("Taille de la structure MSGP = %d\n ", sizeof(MSGP));
while( 1)
{
printf("\nSaisir type destinataire ( 1-5 ) ");
scanf("%d",&m1.mtype);
printf("\nSaisir un message) ");
scanf("%s", m1.text);
/* Send the message */
msgsnd(msqid, &m1, sizeof(MSGP),0);
}
return 0;
}