+++ /dev/null
-/* ReadMonitor.c
- *
- * Copyright (C) 2002 Simone Piccardi
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or (at
- * your option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-/*****************************************************************************
- *
- * File ReadMonitor:
- *
- * An example for shared memory use: read data saved in a shared
- * memory segment from the DirMonitor program
- *
- * Author: S. Piccardi Jan. 2003
- *
- * $Id: ReadMonitor.c,v 1.3 2003/02/26 21:37:36 piccardi Exp $
- *
- *****************************************************************************/
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <dirent.h> /* directory */
-#include <stdlib.h> /* C standard library */
-#include <unistd.h>
-
-#include "Gapil.h"
-#include "macros.h"
-
-/* Help printing routine */
-void usage(void);
-
-/* variables for shared memory segment */
-int shmid;
-struct DirProp {
- int tot_size;
- int tot_files;
- int tot_regular;
- int tot_fifo;
- int tot_link;
- int tot_dir;
- int tot_block;
- int tot_char;
- int tot_sock;
-};
-struct DirProp *shmptr;
-int mutex;
-
-int main(int argc, char *argv[])
-{
- int i;
- key_t key;
- /*
- * Input section: decode command line parameters
- * Use getopt function
- */
- opterr = 0; /* don't want writing to stderr */
- while ( (i = getopt(argc, argv, "hs:l:wrbf")) != -1) {
- switch (i) {
- /*
- * Handling options
- */
- case 'h': /* help option */
- printf("Wrong -h option use\n");
- usage();
- return -1;
- break;
- case '?': /* unrecognized options */
- printf("Unrecognized options -%c\n",optopt);
- usage();
- default: /* should not reached */
- usage();
- }
- }
- /* ***********************************************************
- *
- * Options processing completed
- *
- * Main code beginning
- *
- * ***********************************************************/
- /* create needed IPC objects */
- key = ftok("~/gapil/sources/DirMonitor.c", 1); /* define a key */
- if (!(shmptr = ShmFind(key, 4096))) { /* get a shared memory segment */
- perror("Cannot find shared memory");
- exit(1);
- }
- if ((mutex = MutexFind(key)) == -1) { /* get the Mutex */
- perror("Cannot find mutex");
- }
- /* main loop */
- MutexLock(mutex); /* lock shared memory */
- printf("Ci sono %d file dati\n", shmptr->tot_regular);
- printf("Ci sono %d directory\n", shmptr->tot_dir);
- printf("Ci sono %d link\n", shmptr->tot_link);
- printf("Ci sono %d fifo\n", shmptr->tot_fifo);
- printf("Ci sono %d socket\n", shmptr->tot_sock);
- printf("Ci sono %d device a caratteri\n", shmptr->tot_char);
- printf("Ci sono %d device a blocchi\n", shmptr->tot_block);
- printf("Totale %d file, per %d byte\n",
- shmptr->tot_files, shmptr->tot_size);
- MutexUnlock(mutex); /* unlock shared memory */
-}
-/*
- * routine to print usage info and exit
- */
-void usage(void) {
- printf("Program myls: list file in a directory \n");
- printf("Usage:\n");
- printf(" myls [-h] dirname \n");
- printf(" -h print this help\n");
- exit(1);
-}