50 lines
831 B
C
50 lines
831 B
C
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/* travaille avec msgProd.c
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lit les messages du type donne en parametre sur la ligne de cde
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*/
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#include <sys/types.h>
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#include <sys/ipc.h>
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#include <sys/msg.h>
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#include <stdio.h>
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#include <stdlib.h>
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/* Defines */
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#define cle 17
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typedef struct msgbuf_EXD
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{
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long type;
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char text [30];
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} MSGP;;
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/* Global variables */
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int msqid;
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int main(int argc, char **argv)
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{
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MSGP *m = (MSGP *)malloc (sizeof(MSGP));
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int type;
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if(argc!=2)
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{
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printf ( "usage : msgCons <type> " ) ;
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exit(-1);
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}
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type = atoi(argv[1]);
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msqid = msgget(cle, 0); // ouverture file message
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// lecture
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while(msgrcv(msqid, m, sizeof(MSGP) ,type,1) != -1)
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{
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// decodage du message
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printf("un message de type %d recu ( %s )\n", m->type, m->text);
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}
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return 0;
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}
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