inotify_read.php

<?php
$wd_constants = array(
    1 => array('IN_ACCESS','File was accessed (read)'),
    2 => array('IN_MODIFY','File was modified'),
    4 => array('IN_ATTRIB','Metadata changed (e.g. permissions, mtime, etc.)'),
    8 => array('IN_CLOSE_WRITE','File opened for writing was closed'),
    16 => array('IN_CLOSE_NOWRITE','File not opened for writing was closed'),
    32 => array('IN_OPEN','File was opened'),
    128 => array('IN_MOVED_TO','File moved into watched directory'),
    64 => array('IN_MOVED_FROM','File moved out of watched directory'),
    256 => array('IN_CREATE','File or directory created in watched directory'),
    512 => array('IN_DELETE','File or directory deleted in watched directory'),
    1024 => array('IN_DELETE_SELF','Watched file or directory was deleted'),
    2048 => array('IN_MOVE_SELF','Watch file or directory was moved'),
    24 => array('IN_CLOSE','Equals to IN_CLOSE_WRITE | IN_CLOSE_NOWRITE'),
    192 => array('IN_MOVE','Equals to IN_MOVED_FROM | IN_MOVED_TO'),
    4095 => array('IN_ALL_EVENTS','Bitmask of all the above constants'),
    8192 => array('IN_UNMOUNT','File system containing watched object was unmounted'),
    16384 => array('IN_Q_OVERFLOW','Event queue overflowed (wd is -1 for this event)'),
    32768 => array('IN_IGNORED','Watch was removed (explicitly by inotify_rm_watch() or because file was removed or filesystem unmounted'),
    1073741824 => array('IN_ISDIR','Subject of this event is a directory'),
    1073741840 => array('IN_CLOSE_NOWRITE','High-bit: File not opened for writing was closed'),
    1073741856 => array('IN_OPEN','High-bit: File was opened'),
    1073742080 => array('IN_CREATE','High-bit: File or directory created in watched directory'),
    1073742336 => array('IN_DELETE','High-bit: File or directory deleted in watched directory'),
    16777216 => array('IN_ONLYDIR','Only watch pathname if it is a directory (Since Linux 2.6.15)'),
    33554432 => array('IN_DONT_FOLLOW','Do not dereference pathname if it is a symlink (Since Linux 2.6.15)'),
    536870912 => array('IN_MASK_ADD','Add events to watch mask for this pathname if it already exists (instead of replacing mask).'),
    2147483648 => array('IN_ONESHOT','Monitor pathname for one event, then remove from watch list.')
);
$path = '.';
function startWatch($path){
    global $wd_constants;
    $fd = inotify_init();
    stream_set_blocking($fd, 0);
    $watch_descriptor = inotify_add_watch($fd, $path, IN_ALL_EVENTS);
    $poll = 0;
    while (true) {
        $fcount = 0;
        $poll++;
        //添加监控
        $events = inotify_read($fd);
        if ($events) {
            foreach ($events as $event) {
                $change_file = $path.DIRECTORY_SEPARATOR.$event['name'];
                $change_event = $wd_constants[$event['mask']][0];
                echo "inotify Event #".$fcount." - Object: {$change_file}: {$change_event} (".$wd_constants[$event['mask']][1].")\n";
                //如果是添加事件，加入新监控。
                if($change_event =='IN_CREATE') {
//                    startWatch($change_file);
                    $watch_descriptor =inotify_add_watch($fd, $change_file, IN_ALL_EVENTS);
                }
            }
        }
    }
    inotify_rm_watch($fd, $watch_descriptor);
    fclose($fd);
}


//startWatch($path);