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@wh5a
Created February 12, 2010 06:07
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/* A simple inotify example from https://www.ibm.com/developerworks/linux/library/l-ubuntu-inotify/ */
#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <sys/types.h>
#include <sys/inotify.h>
#define EVENT_SIZE ( sizeof (struct inotify_event) )
#define BUF_LEN ( 1024 * ( EVENT_SIZE + 16 ) )
int main( int argc, char **argv )
{
int length;
int fd;
int wd;
char buffer[BUF_LEN];
fd = inotify_init();
if ( fd < 0 ) {
perror( "inotify_init" );
}
wd = inotify_add_watch( fd, "/home/wh5a",
IN_MODIFY | IN_CREATE | IN_DELETE );
while (1) {
int i = 0;
length = read( fd, buffer, BUF_LEN );
if ( length < 0 ) {
perror( "read" );
}
while ( i < length ) {
struct inotify_event *event = ( struct inotify_event * ) &buffer[ i ];
if ( event->len ) {
if ( event->mask & IN_CREATE ) {
if ( event->mask & IN_ISDIR ) {
printf( "The directory %s was created.\n", event->name );
}
else {
printf( "The file %s was created.\n", event->name );
}
}
else if ( event->mask & IN_DELETE ) {
if ( event->mask & IN_ISDIR ) {
printf( "The directory %s was deleted.\n", event->name );
}
else {
printf( "The file %s was deleted.\n", event->name );
}
}
else if ( event->mask & IN_MODIFY ) {
if ( event->mask & IN_ISDIR ) {
printf( "The directory %s was modified.\n", event->name );
}
else {
printf( "The file %s was modified.\n", event->name );
}
}
}
i += EVENT_SIZE + event->len;
}
}
( void ) inotify_rm_watch( fd, wd );
( void ) close( fd );
exit( 0 );
}
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