113 lines
2.9 KiB
C
113 lines
2.9 KiB
C
#include <unistd.h>
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include <sys/types.h>
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#include <sys/ipc.h>
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#include <sys/shm.h>
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#include <curses.h>
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#include <ctype.h>
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#include "constantes.h"
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#include "types.h"
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#include "sema.h"
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#define NAMESIZE 30
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WINDOW *creation_fenetre(int n,int d,char *t);
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int main( int argc, char **argv)
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{
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if(argc < 2) { printf("Usage %s numIPC\n", argv[0]); exit(EXIT_FAILURE); }
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MEMP *memoireP;
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int mutex_data, mutex_tpa, i=0;
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char c;
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const char CTRL_D = 4 ;
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int shmid;
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int shm_key = atoi(argv[1]);
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char * nom_de_la_fenetre = NULL;
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WINDOW * fenetre ;
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key_t sem_key_data = MUTEX_DATA;
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key_t sem_key_tpa = MUTEX_TPA;
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shmid = shmget(shm_key, sizeof(MEMP), 0766 | IPC_CREAT);
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if (shmid == -1) { perror("shmget"); exit(EXIT_FAILURE); }
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if((memoireP = (MEMP *) shmat(shmid, 0 , 0766)) ==(void *) -1) { perror("shmat"); exit(EXIT_FAILURE); }
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if((mutex_data = open_sem( sem_key_data)) == -1) { perror("open_sem"); exit(EXIT_FAILURE); }
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if((mutex_tpa = open_sem( sem_key_tpa)) == -1) { perror("open_sem"); exit(EXIT_FAILURE); }
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P(mutex_tpa);
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for(i = 0; i < MAX_PROD && memoireP->tpa[i] != -1 ; i++);
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if(memoireP->tpa[i] != -1) { V(mutex_tpa); exit(EXIT_FAILURE); }
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memoireP->tpa[i] = 0;
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V(mutex_tpa);
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initscr() ; /* initialisation (obligatoire) de curses */
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noecho() ; /* suppression de l'echo des caracteres tapes*/
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cbreak() ; /* lecture non bufferisee */
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// Je donne un nom à ma fenêtre
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nom_de_la_fenetre = (char *) malloc(sizeof(char *) * NAMESIZE);
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snprintf(nom_de_la_fenetre, NAMESIZE, "PRODUCTEUR %d", i);
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fenetre = creation_fenetre(LINES,0,nom_de_la_fenetre);
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// On quitte le producteur en tappant CTRL_D
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while (( c = wgetch(fenetre)) != CTRL_D)
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{
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P(mutex_data);
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if(((memoireP->queue -1) % MAX_BUF) != (memoireP->tete % MAX_BUF) )
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{
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memoireP->f[memoireP->tete].c = c;
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memoireP->f[memoireP->tete].idp = i;
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//temp.c = (char) c;
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//temp.idp = i;
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//tete = (int) memoireP->tete;
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//memoireP->f[tete] = (MSG) temp;
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//tete++;
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memoireP->tete++;// = (int) tete;
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}
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V(mutex_data);
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waddch(fenetre,c) ;
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wrefresh(fenetre) ;
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}
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// On a fini, on remet la valeur de l'indice du processus à -1 dans le tableau des producteurs
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P(mutex_tpa);
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memoireP->tpa[i] = -1;
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V(mutex_tpa);
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endwin();
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// On libère la mémoire de façon propre
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free(nom_de_la_fenetre);
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exit(EXIT_SUCCESS);
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}
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WINDOW *creation_fenetre(int n,int d,char *t)
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{
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WINDOW *cadre ; /* la fenetre pour le cadre */
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WINDOW *w ; /* la fenetre de dialogue */
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/* creation du cadre */
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cadre= newwin(n,COLS,d,0) ;
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box(cadre,0,0) ;
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mvwprintw(cadre,0,COLS/2-strlen(t)/2,t) ;
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wrefresh(cadre) ;
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/* creation de la fenetre de dialogue */
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w= newwin(n-2,COLS-2,d+1,1) ;
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idlok(w,TRUE) ;
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scrollok(w,TRUE) ; /* mise en place du defilement (scrolling) */
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wclear(w) ;
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wrefresh(w) ;
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return w ;
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}
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