X-Git-Url: https://gapil.gnulinux.it/gitweb/?a=blobdiff_plain;f=listati%2Finotify_monitor.c;fp=listati%2Finotify_monitor.c;h=310195a2883b43406c968d380d210df8dc546157;hb=492c6b5ca2c851077e63d3a53c9f735e854e8765;hp=0000000000000000000000000000000000000000;hpb=05e740c9a3031a4359e9a895b0fb3d582b497d2f;p=gapil.git

diff --git a/listati/inotify_monitor.c b/listati/inotify_monitor.c
new file mode 100644
index 0000000..310195a
--- /dev/null
+++ b/listati/inotify_monitor.c
@@ -0,0 +1,56 @@
+#include <sys/inotify.h> /* Linux inotify interface */
+...
+int main(int argc, char *argv[]) 
+{
+    int i, narg, nread;
+    int fd, wd;
+    char buffer[512 * (sizeof(struct inotify_event) + 16)];
+    unsigned int mask=0;
+    struct inotify_event * event;
+    ...
+    narg = argc - optind; 
+    if (narg < 1) { /* There must be at least one argument */
+	printf("Wrong number of arguments %d\n", argc - optind);
+        usage();
+    }
+    fd = inotify_init();       /* initialize inotify */
+    if (fd < 0) {
+	perror("Failing on inotify_init");
+	exit(-1);
+    }
+    i = 0;
+    while (i < narg) {
+	wd = inotify_add_watch(fd, argv[optind+i], mask);  /* add watch */
+	if (wd <= 0) {
+	    printf("Failing to add watched file %s, mask %i; %s\n", 
+		   argv[optind+i], mask, strerror(errno));
+	    exit(-1);
+	}
+	i++;
+    }
+    /* Main Loop: read events and print them */
+    while (1) {
+	nread = read(fd, buffer, sizeof(buffer));
+	if (nread < 0) {
+	    if (errno == EINTR) {
+		continue;
+	    } else {
+		perror("error reading inotify data");
+		exit(1);
+	    }
+	} else {
+	    i = 0;
+	    while (i < nread) { 
+		event = (struct inotify_event *) buffer + i;
+		printf("Watch descriptor %i\n", event->wd);
+		printf("Observed event on %s\n", argv[optind-1+event->wd]);
+		if (event->len) {
+		    printf("On file %s\n", event->name);
+		}
+		printevent(event->mask);
+		i += sizeof(struct inotify_event) + event->len;
+	    }
+	}
+    }
+    return 0;
+}