Esercizio 1, prova pratica 29.05.2014 - Revision history

Davide.quadrelli2 at 09:50, 28 May 2015

2015-05-28T09:50:03Z

Pierg: /* Soluzione di Pierg */

2015-03-24T17:25:15Z

Soluzione di Pierg

Pierg at 17:06, 24 March 2015

2015-03-24T17:06:41Z

Pierg at 17:06, 24 March 2015

2015-03-24T17:06:16Z

Pierg: /* Soluzione di Pierg */

2015-03-24T17:05:56Z

Soluzione di Pierg

Pierg at 18:16, 23 March 2015

2015-03-23T18:16:24Z

Pierg at 18:16, 23 March 2015

2015-03-23T18:16:02Z

Pierg: /* Soluzione di Pierg */

2015-03-23T18:13:35Z

Soluzione di Pierg

Pierg: /* Soluzione di Pierg */

2015-03-23T18:12:54Z

Soluzione di Pierg

Pierg at 18:08, 22 March 2015

2015-03-22T18:08:57Z

@@ Line 101: / Line 101: @@
    	/* Closing the INOTIFY instance */
     	close(fd);
+}
 </source>

@@ Line 74: / Line 74: @@
 			  			printf("New file %s created.\n", event->name);
+					}
+		      	        }
 		      		else if (event->mask & IN_DELETE) {
@@ Line 83: / Line 84: @@
 			  			printf("File %s deleted.\n", event->name);
+					}
+		      		}
 				/* Removing the directory */

← Older revision		Revision as of 17:06, 24 March 2015
Line 100:		Line 100:
	close(fd);		close(fd);
	}		}
		+	</source>

← Older revision		Revision as of 17:06, 24 March 2015
Line 100:		Line 100:
	close(fd);		close(fd);
	}		}
−	~~</source>~~
−	~~<source lang="text">~~
−	~~Non capisco perche' ,anche inserendo il while prima della read ,non riesco a notificare eventi uno dopo l'altro nello stesso ciclo.~~
−	~~</source>~~

@@ Line 86: / Line 86: @@
 				/* Removing the directory */
 				else if (event->mask & IN_DELETE_SELF) {
 					printf( "Directory %s deleted.\n", event->name );
 					break;
@@ Line 92: / Line 93: @@
 	    		i += EVENT_SIZE + event->len;
+		}
+	}
 	/* Removing the directory from the watch list */

@@ Line 102: / Line 102: @@
 </source>
 <source lang="text">
-Non capisco perche' ,anche inserendo i while prima della read ,non riesco a notificare eventi uno dopo l'altro nello stesso ciclo.
+Non capisco perche' ,anche inserendo il while prima della read ,non riesco a notificare eventi uno dopo l'altro nello stesso ciclo.
 </source>

@@ Line 8: / Line 8: @@
 </source>
 ==Soluzione di Pierg==
 #include <sys/types.h>
 #include <sys/stat.h>

@@ Line 8: / Line 8: @@
 </source>
 ==Soluzione di Pierg==
 #include <sys/types.h>
 #include <sys/stat.h>
@@ Line 24: / Line 23: @@
 	char *directory_base = argv[1];
 	char buffer[EVENT_BUF_LEN];
 	/* Make the directory */
@@ Line 38: / Line 38: @@
    	/* Checking for error */
    	if ( fd < 0 ) {
-     		perror("Errror in inotify_init");
+     		perror("Error in inotify_init");
+   	}
    	/* Adding the directory into watch list.
             Here, the suggestion is to validate the existence of the directory before adding into monitoring list. */
-   	wd = inotify_add_watch(fd, directory_base, IN_CREATE | IN_DELETE);
+   	wd = inotify_add_watch(fd, directory_base, IN_CREATE | IN_DELETE | IN_DELETE_SELF);
-  	/* Read to determine the event change happens on the directory.
+	/* It continue until directory-base exist */
-	   Actually this read blocks until the change event occurs. */
+	while (boolean != 0) {
-  	/* Checking for error */
+	  	/* Read to determine the event change happens on the directory.
-  	if ( length < 0 ) {
+		   Actually this read blocks until the change event occurs. */
-   		 perror("Error in read");
+		length = read(fd, buffer, EVENT_BUF_LEN);
-−
-  	/* Actually read return the list of change events happens.
+	  	/* Actually read return the list of change events happens.
-           Here, read the change event one by one and process it accordingly. */
+		   Here, read the change event one by one and process it accordingly. */
-  	while (i < length) {
+	  	while (i < length) {
-−
-		struct inotify_event *event = (struct inotify_event*) &buffer[i];
+			struct inotify_event *event = (struct inotify_event*) &buffer[i];
-−
-		if (event->len) {
+			if (event->len) {
-			if (event->mask & IN_CREATE) {
+				if (event->mask & IN_CREATE) {
-	     			if (event->mask & IN_ISDIR) {
+		     			if (event->mask & IN_ISDIR) {
-		 			printf("New directory %s created.\n", event->name);
+			 			printf("New directory %s created.\n", event->name);
-−
+		       			}
-				else {
+					else {
-		  			printf("New file %s created.\n", event->name);
+			  			printf("New file %s created.\n", event->name);
-−
+					}
-−
+		      	        }
-	      		else if (event->mask & IN_DELETE) {
+		      		else if (event->mask & IN_DELETE) {
-				if (event->mask & IN_ISDIR) {
+					if (event->mask & IN_ISDIR) {
-		  			printf( "Directory %s deleted.\n", event->name );
+			  			printf( "Directory %s deleted.\n", event->name );
+				}
-				else {
-		  			printf("File %s deleted.\n", event->name);
+	    		i += EVENT_SIZE + event->len;
-−
+		}
+		boolean = 0;
+	}
 	/* Removing the directory from the watch list */
     	inotify_rm_watch(fd, wd);

@@ Line 1: / Line 1: @@
-<source lang="txt">
+<source lang="text">
 Scrivere un programma con un solo parametro.
 Come prima cosa il programma deve creare una directory con il path specificato nel parametro. Se la directory esiste gia' o si