/**
* Simple tail program using the inotify extension
* Usage: ./tail.php file
*/
function main_loop($file, $file_fd)
{
$inotify = inotify_init();
if ($inotify === false) {
fprintf(STDERR, "Failed to obtain an inotify instance\n");
return 1;
}
$watch = inotify_add_watch($inotify, $file, IN_MODIFY);
if ($watch === false) {
fprintf(STDERR, "Failed to watch file '%s'", $file);
return 1;
}
while (($events = inotify_read($inotify)) !== false) {
echo "Event received !\n";
foreach ($events as $event) {
if (!($event['mask'] & IN_MODIFY)) {
continue;
}
echo stream_get_contents($file_fd);
break;
}
}
// May not happen
inotify_rm_watch($inotify, $watch);
fclose($inotify);
fclose($file_fd);
return 0;
}
/**
* Execute the console command.
*
* @return mixed
*/
public function fire()
{
$watches = array();
$in = inotify_init();
// add watches starting from root directory
$root = Path::fromRelative('');
$this->addWatches($in, $root, $watches);
printf("\nReading for events\n");
while (true) {
$events = inotify_read($in);
foreach ($events as $event) {
$path = $watches[$event['wd']];
$expanded = $this->expandMask($event['mask']);
$eventName = trim(implode(', ', $expanded), ', ');
// if the event has a name attached, then index that
if ($event['name']) {
$newPathName = $path->getPathname() . '/' . $event['name'];
$newPath = new Path($newPathName);
Indexer::index($newPath, 1);
// this may be a new directory, so add a watch to it anyway
if ($newPath->exists() && $newPath->isDir()) {
try {
$wd = inotify_add_watch($in, $newPath->getPathname(), $this->computedMask);
$watches[$wd] = $newPath;
} catch (Exception $e) {
echo 'Caught exception: ', $e->getMessage(), "\n";
}
}
} else {
// event must apply to this directory, so index it, 1 level deep
Indexer::index($path, 1);
}
}
}
}
public function start()
{
$this->stop = false;
$fd = inotify_init();
$wd = inotify_add_watch($fd, $this->path, IN_ALL_EVENTS);
$read = [$fd];
$write = null;
$except = null;
stream_select($read, $write, $except, 0);
stream_set_blocking($fd, 0);
while (true) {
if ($this->stop) {
inotify_rm_watch($fd, $wd);
return fclose($fd);
}
if ($events = inotify_read($fd)) {
foreach ($events as $details) {
if ($details['name']) {
$target = rtrim($this->path, '/') . '/' . $details['name'];
} else {
$target = $this->path;
}
$file = new \SplFileInfo($target);
switch (true) {
case $details['mask'] & IN_MODIFY:
$this->modify($file);
break;
}
$this->all($file);
}
}
}
}
/**
* @param array $directories
* @param \Closure|null $callback
* @return Watcher
* @throws \RuntimeException
*/
public function watch(array $directories, \Closure $callback = null)
{
foreach ($directories as $directory) {
if (!is_dir($directory)) {
$this->clearWatch();
throw new \RuntimeException("[{$directory}] is not a directory.");
}
$wd = inotify_add_watch($this->inotify, $directory, $this->events);
$this->watchDir[$directory] = $wd;
}
$this->callback = $callback;
// Listen modify.
\swoole_event_add($this->inotify, function () use($callback) {
$events = inotify_read($this->inotify);
if (!$events) {
return;
}
foreach ($events as $event) {
if (!empty($event['name'])) {
echo sprintf("[%s]\t" . sprintf('["%s"] modify', $event['name']) . PHP_EOL, date('Y-m-d H:i:s'));
}
}
if (is_callable($callback)) {
$callback($this);
}
});
return $this;
}
function tail($file, &$pos)
{
// get the size of the file
if (!$pos) {
$pos = filesize($file);
}
// Open an inotify instance
$fd = inotify_init();
// Watch $file for changes.
$watch_descriptor = inotify_add_watch($fd, $file, IN_ALL_EVENTS);
// Loop forever (breaks are below)
while (true) {
// Read events (inotify_read is blocking!)
$events = inotify_read($fd);
// Loop though the events which occured
foreach ($events as $event => $evdetails) {
// React on the event type
switch (true) {
// File was modified
case $evdetails['mask'] & IN_MODIFY:
// Stop watching $file for changes
inotify_rm_watch($fd, $watch_descriptor);
// Close the inotify instance
fclose($fd);
// open the file
$fp = fopen($file, 'r');
if (!$fp) {
return false;
}
// seek to the last EOF position
fseek($fp, $pos);
// read until EOF
while (!feof($fp)) {
$buf .= fread($fp, 8192);
}
// save the new EOF to $pos
$pos = ftell($fp);
// (remember: $pos is called by reference)
// close the file pointer
fclose($fp);
// return the new data and leave the function
return $buf;
break;
// File was moved or deleted
// File was moved or deleted
case $evdetails['mask'] & IN_MOVE:
case $evdetails['mask'] & IN_MOVE_SELF:
case $evdetails['mask'] & IN_DELETE:
case $evdetails['mask'] & IN_DELETE_SELF:
// Stop watching $file for changes
inotify_rm_watch($fd, $watch_descriptor);
// Close the inotify instance
fclose($fd);
// Return a failure
return false;
break;
}
}
}
}
/**
* Check the file system, triggered by timer
* @return void
*/
public function watch()
{
if ($this->inotify) {
$events = inotify_read($this->inotify);
if (!$events) {
return;
}
foreach ($events as $ev) {
$path = $this->descriptors[$ev['wd']];
if (!isset($this->files[$path])) {
continue;
}
$this->onFileChanged($path);
}
} else {
static $hash = [];
foreach ($this->files as $path => $v) {
if (!file_exists($path)) {
// file can be deleted
unset($this->files[$path]);
continue;
}
$mt = filemtime($path);
if (isset($hash[$path]) && $mt > $hash[$path]) {
$this->onFileChanged($path);
}
$hash[$path] = $mt;
}
}
}
/**
* Tick handler
*/
public function tick()
{
$events = inotify_read($this->inotifyStreamDescriptor);
if (is_array($events)) {
$this->handleEvents($events);
}
}
/**
* Evaluate Filesystem changes
*
* @return mixed
*/
public function evaluate()
{
$this->tracker->clearChangeSet();
$this->modified = array();
$inEvents = inotify_read($this->inotify);
$inEvents = is_array($inEvents) ? $inEvents : array();
foreach ($inEvents as $inEvent) {
$this->translateEvent($inEvent);
}
}
/**
* 获取更改的文件
* @return array
*/
public static function getModifiedFiles()
{
// 读取监控事件
$events = inotify_read(self::$inotifyFd);
if (empty($events)) {
return false;
}
// 获得哪些文件被修改
$modify_files = array();
foreach ($events as $ev) {
$modify_files[$ev['wd']] = self::$inotifyWatchFds[$ev['wd']];
}
return $modify_files;
}
/**
* Checks all new inotify events available
* and emits them via evenement
*/
public function __invoke()
{
if (false !== ($events = \inotify_read($this->inotifyHandler))) {
foreach ($events as $event) {
// make sure the watch descriptor assigned to this event is
// still valid. removing watch descriptors via 'remove()'
// implicitly sends a final event with mask IN_IGNORE set:
// http://php.net/manual/en/inotify.constants.php#constant.in-ignored
if (isset($this->watchDescriptors[$event['wd']])) {
$path = $this->watchDescriptors[$event['wd']]['path'];
$this->emit($event['mask'], array($path . $event['name']));
}
}
}
}
function check_files_change($inotify_fd)
{
global $monitor_files;
// 读取有哪些文件事件
$events = inotify_read($inotify_fd);
if ($events) {
// 检查哪些文件被更新了
foreach ($events as $ev) {
// 更新的文件
$file = $monitor_files[$ev['wd']];
echo $file . " update and reload\n";
unset($monitor_files[$ev['wd']]);
// 需要把文件重新加入监控
$wd = inotify_add_watch($inotify_fd, $file, IN_MODIFY);
$monitor_files[$wd] = $file;
}
// 给父进程也就是主进程发送reload信号
posix_kill(posix_getppid(), SIGUSR1);
}
}
/**
* @return Result
*/
public function run()
{
/** @noinspection PhpUndefinedFunctionInspection */
$inotify = inotify_init();
$watches = $this->createInotifyWatches($inotify);
stream_set_blocking($inotify, 0);
while (true) {
/** @noinspection PhpUndefinedFunctionInspection */
$events = inotify_read($inotify);
if ($events) {
if ($this->clear) {
passthru('bash -c clear');
}
$this->runTasksForInotifyEvents($events);
}
sleep(1);
}
$this->shutdownInotify($inotify, $watches);
return $this->gasp->result()->setStatus(Result::SUCCESS)->setMessage('And now his watch is ended.');
}
public function start()
{
$this->init();
$this->fd = fopen($this->path, 'r');
stream_set_blocking($this->fd, 0);
$pos = filesize($this->path);
while (true) {
$events = inotify_read($this->ifd);
foreach ($events as $event) {
switch (true) {
case $event['mask'] & self::MASK:
fseek($this->fd, $pos);
$buf = '';
while (!feof($this->fd)) {
$buf .= fread($this->fd, 8192);
}
$this->handler->InModify($buf, $this->filename);
$pos = ftell($this->fd);
break;
}
}
}
}
/**
* @param $serverPid
* @throws NotFound
*/
function __construct($serverPid)
{
$this->pid = $serverPid;
if (posix_kill($serverPid, 0) === false) {
throw new NotFound("Process#{$serverPid} not found.");
}
$this->inotify = inotify_init();
$this->events = IN_MODIFY | IN_DELETE | IN_CREATE | IN_MOVE;
swoole_event_add($this->inotify, function ($ifd) {
$events = inotify_read($this->inotify);
if (!$events) {
return;
}
var_dump($events);
foreach ($events as $ev) {
if ($ev['mask'] == IN_IGNORED) {
continue;
} else {
if ($ev['mask'] == IN_CREATE or $ev['mask'] == IN_DELETE or $ev['mask'] == IN_MODIFY or $ev['mask'] == IN_MOVED_TO or $ev['mask'] == IN_MOVED_FROM) {
$fileType = strstr($ev['name'], '.');
//非重启类型
if (!isset($this->reloadFileTypes[$fileType])) {
continue;
}
}
}
//正在reload，不再接受任何事件，冻结10秒
if (!$this->reloading) {
$this->putLog("after 10 seconds reload the server");
//有事件发生了，进行重启
swoole_timer_after($this->afterNSeconds * 1000, array($this, 'reload'));
$this->reloading = true;
}
}
});
}
/**
* Returns all events happened since last event readout
*
* @return array
*/
protected function readEvents()
{
return inotify_read($this->inotify);
}
/**
* Monitor the paths for any changes based on the modify time information.
* When a change is detected, all listeners are invoked, and the list of
* paths is once again traversed to acquire updated modification timestamps.
*/
private function watchInotify()
{
if (($eventList = inotify_read($this->inotify)) === false) {
return;
}
foreach ($eventList as $event) {
$mask = $event['mask'];
if ($mask & IN_DELETE_SELF || $mask & IN_MOVE_SELF) {
$watchDescriptor = $event['wd'];
if (inotify_rm_watch($this->inotify, $watchDescriptor)) {
unset($this->paths[$watchDescriptor]);
}
break;
}
}
$this->runListeners();
}
public function wait()
{
return inotify_read($this->inotify);
}
function start()
{
$this->initDirs();
while (true) {
$fds = $this->ifds;
if (stream_select($fds, $w = null, $e = null, 1)) {
foreach ($fds as $file => $ifd) {
$events = inotify_read($ifd);
foreach ($events as $event) {
switch (true) {
case $event['mask'] & IN_MODIFY:
if (isset($this->fds[$file])) {
fseek($this->fds[$file], $this->pos[$file]);
$buf = '';
while (!feof($this->fds[$file])) {
$buf .= fread($this->fds[$file], self::BUFFER_SIZE);
}
if ($buf) {
$this->handler->InModify($buf, basename($file));
$this->pos[$file] = ftell($this->fds[$file]);
}
}
break;
case $event['mask'] & IN_CREATE and $event['mask'] & IN_ISDIR:
$this->addDir($event['name']);
$this->log("add dir event " . $event['name']);
break;
case $event['mask'] & IN_CREATE:
$this->addFile($event['name']);
$this->log("add file event " . $event['name']);
break;
case $event['mask'] & IN_DELETE and $event['mask'] & IN_ISDIR:
$this->deleteDir($event['name']);
break;
case $event['mask'] & IN_DELETE:
$this->deleteFile($event['name']);
break;
}
}
}
}
if (date("His") == "000100") {
$yesterday = date($this->format, time() - 24 * 3600);
$this->log(date("Y-m-d H:i:s") . "stop watch {$yesterday}");
$this->stopWatchDir($yesterday);
}
}
}
<?php
class G
{
static $users = array();
static $files = array();
static $watchList = array();
static $inotify;
}
$server = new swoole_websocket_server("0.0.0.0", 9502, SWOOLE_BASE);
$server->on('WorkerStart', function (swoole_websocket_server $server, $worker_id) {
G::$inotify = inotify_init();
swoole_event_add(G::$inotify, function ($ifd) use($server) {
$events = inotify_read(G::$inotify);
if (!$events) {
return;
}
foreach ($events as $event) {
$filename = G::$watchList[$event['wd']];
$line = fgets(G::$files[$filename]['fp']);
if (!$line) {
echo "fgets failed\n";
}
//遍历监听此文件的所有用户，进行广播
foreach (G::$files[$filename]['users'] as $fd) {
$server->push($fd, $line);
}
}
});
});
$server->on('Message', function (swoole_websocket_server $server, $frame) {
public function start()
{
$paths = $this->_paths;
if ($this->_followLinks) {
$paths = LinksHelper::followLinks($paths, $this->_excludePatterns);
}
$this->_fd = inotify_init();
$finder = new Finder();
$finder->directories();
foreach ($this->_excludePatterns as $excludePattern) {
$finder->notName($excludePattern);
}
foreach ($paths as $p) {
$finder->in($p);
}
$this->_watches = array();
foreach ($paths as $p) {
$this->_addWatch($p);
}
foreach ($finder as $f) {
$this->_addWatch($f->__toString());
}
$this->_logger->info("Watches set up...");
$read = array($this->_fd);
$write = null;
$except = null;
stream_select($read, $write, $except, 0);
stream_set_blocking($this->_fd, 0);
$events = array();
while (!$this->_stopped) {
while ($inotifyEvents = inotify_read($this->_fd)) {
foreach ($inotifyEvents as $details) {
$file = $this->_watches[$details['wd']];
if ($details['name']) {
$file .= '/' . $details['name'];
}
if ($details['mask'] & IN_MODIFY || $details['mask'] & IN_ATTRIB) {
$events[] = new ModifyEvent($file);
}
if ($details['mask'] & IN_CREATE) {
$events[] = new CreateEvent($file);
}
if ($details['mask'] & IN_DELETE) {
$events[] = new DeleteEvent($file);
}
if ($details['mask'] & IN_MOVED_FROM) {
$this->_previousMoveFromFile = $file;
}
if ($details['mask'] & IN_MOVED_TO) {
if (!isset($this->_previousMoveFromFile)) {
$this->_logger->error('MOVED_FROM event is not followed by a MOVED_TO');
} else {
$events[] = new MoveEvent($this->_previousMoveFromFile, $file);
unset($this->_previousMoveFromFile);
}
}
if ($details['mask'] & IN_DELETE_SELF) {
unset($this->_watches[$details['wd']]);
}
}
}
$events = $this->_compressEvents($events);
if ($this->_queueSizeLimit && count($events) > $this->_queueSizeLimit) {
$this->_dispatchEvent(QueueFullEvent::NAME, new QueueFullEvent($events));
$events = array();
}
foreach ($events as $event) {
$name = call_user_func(array(get_class($event), 'getEventName'));
$this->_dispatchEvent($name, $event);
}
usleep(100 * 1000);
}
foreach ($this->_watches as $wd => $path) {
inotify_rm_watch($this->_fd, (int) $wd);
}
fclose($this->_fd);
return;
}
<?php // Open an inotify instance $fd = inotify_init(); // Watch __FILE__ for metadata changes (e.g. mtime) $watch_descriptor = inotify_add_watch($fd, __FILE__, IN_ATTRIB); // generate an event touch(__FILE__); // Read events $events = inotify_read($fd); print_r($events); // The following methods allows to use inotify functions without blocking on inotify_read(): // - Using stream_select() on $fd: $read = array($fd); $write = null; $except = null; stream_select($read, $write, $except, 0); // - Using stream_set_blocking() on $fd stream_set_blocking($fd, 0); inotify_read($fd); // Does no block, and return false if no events are pending // - Using inotify_queue_len() to check if event queue is not empty $queue_len = inotify_queue_len($fd); // If > 0, inotify_read() will not block // Stop watching __FILE__ for metadata changes inotify_rm_watch($fd, $watch_descriptor); // Close the inotify instance // This may have closed all watches if this was not already done fclose($fd);
protected function watchPackages(InputInterface $input, OutputInterface $output)
{
if (!function_exists('inotify_init')) {
throw new \RuntimeException('Watch require inotify support, please install the inotify extension http://php.net/inotify');
}
$packageNames = $input->getArgument('package');
if (empty($packageNames)) {
$packageNames = array_keys($this->packages);
}
$inotify = inotify_init();
$watches = [];
$mapping = [];
foreach ($packageNames as $packageName) {
if (!isset($this->packages[$packageName])) {
throw new \RuntimeException('The package "' . $packageName . '" does not exist');
}
if ($output->getVerbosity() >= OutputInterface::VERBOSITY_NORMAL) {
$output->writeln(sprintf('* start watching package <comment>%s</comment>', $packageName));
}
$package = $this->packages[$packageName];
$this->addWatches($package, $package, $mapping, $watches, $inotify, $output);
}
while (true) {
if ($output->getVerbosity() >= OutputInterface::VERBOSITY_NORMAL) {
$output->writeln('* <info>waiting for modifications</info>');
}
$events = inotify_read($inotify);
if (is_array($events)) {
foreach ($events as $event) {
$pathname = $watches[$event['wd']];
$packages = $mapping[$pathname];
if ($output->getVerbosity() >= OutputInterface::VERBOSITY_NORMAL) {
$output->writeln(sprintf('modification on <comment>%s</comment> detected', $pathname));
}
foreach ($packages as $package) {
try {
$this->buildPackage($package, $input, $output);
} catch (\Exception $e) {
$this->getApplication()->renderException($e, $output);
}
}
}
}
}
}
/**
* 监控日志文件
*
* @param array $logPaths
* @return void
* @throws ZtChart_Model_Monitor_Exception
*/
public function tail($logPaths)
{
if (($inotify = inotify_init()) === false) {
throw new ZtChart_Model_Monitor_Daemon_Exception('Failed to obtain an inotify instance.');
}
$watchFiles = $watchDirs = array();
foreach ($logPaths as $file) {
if (($watch = inotify_add_watch($inotify, $file, IN_CREATE | IN_MODIFY)) === false) {
throw new ZtChart_Model_Monitor_Daemon_Exception("Failed to watch file '{$file}'.");
}
if (is_file($file)) {
if (false === ($fd = fopen($file, "r"))) {
throw new ZtChart_Model_Monitor_Daemon_Exception("File '{$file}' is not readable.");
}
$this->_ffseek($fd);
$watchFiles[$watch] = $fd;
} else {
if (is_dir($file)) {
$watchFiles[$watch] = array();
$watchDirs[$watch] = $file;
}
}
}
while (($events = inotify_read($inotify)) !== false) {
foreach ($events as $event) {
if ($event['mask'] & IN_Q_OVERFLOW) {
throw new ZtChart_Model_Monitor_Daemon_Exception("The number of inotify queued events reaches upper limit.");
}
if (!$this->accept($event['name'])) {
continue;
}
if ($event['mask'] & (IN_CREATE | IN_MODIFY)) {
if (!($event['mask'] & IN_ISDIR)) {
if (!array_key_exists($event['name'], $watchFiles[$event['wd']])) {
$fn = $fd = null;
foreach ($watchFiles[$event['wd']] as $wfn => $wfd) {
if (strncasecmp($wfn, $event['name'], strpos($wfn, '.')) == 0) {
$fn = $wfn;
$fd = $wfd;
break;
}
}
// 判断当前创建或修改的日志文件是否最新
if (strcasecmp($fn, $event['name']) < 0) {
if (is_resource($fd) && fclose($fd)) {
unset($watchFiles[$event['wd']][$fn]);
}
$filename = $watchDirs[$event['wd']] . DIRECTORY_SEPARATOR . $event['name'];
if (false === ($fd = fopen($filename, "r"))) {
$this->_logger->err("File '{$filename}' is not readable\n");
continue;
}
if ($event['mask'] & IN_MODIFY) {
$this->_ffseek($fd);
}
$watchFiles[$event['wd']][$event['name']] = $fd;
} else {
// 如果不是最新的日志文件（重写的上一个小时的日志文件），则不处理。
continue;
}
} else {
$fd = $watchFiles[$event['wd']][$event['name']];
}
} else {
continue;
// $fd = $watchFiles[$event['wd']];
}
// 读取日志并分析
$raw = '';
$lines = 0;
while (true) {
$raw .= $block = fread($fd, 4096);
if (false !== ($pos = strpos($raw, "\n"))) {
$rawline = substr($raw, 0, $pos + 1);
try {
$mlog = new ZtChart_Model_Monitor_Log($rawline);
$line = $mlog->transform();
if (!empty($line)) {
$this->_shmWrite($mlog->getShmIdentifier(), $line);
$lines++;
}
} catch (ZtChart_Model_Monitor_Log_Exception $e) {
$this->_logger->warn("日志处理错误：" . iconv('GBK', 'UTF-8', $rawline));
}
$raw = substr($raw, $pos + 1);
} else {
if (($offset = strlen($block)) > 0) {
fseek($fd, -$offset, SEEK_CUR);
}
break;
}
}
if (0 != $lines) {
$this->_logger->info(sprintf("%4s行有效数据已处理：%s", $lines, $watchDirs[$event['wd']] . '/' . $event['name']));
}
}
}
}
foreach ($watchFiles as $watch => $fd) {
if (is_resource($fd)) {
$fd = (array) $fd;
}
array_walk($fd, 'fclose');
inotify_rm_watch($inotify, $watch);
}
fclose($inotify);
}
<?php
// Open an inotify instance
$fd = inotify_init();
// Watch __FILE__ for metadata changes (e.g. mtime)
$watch_descriptor = inotify_add_watch($fd, __DIR__ . '/php', IN_MODIFY | IN_MOVED_FROM | IN_CREATE | IN_DELETE | IN_ISDIR);
while (true) {
// Read events
$events = inotify_read($fd);
print_r($events);
}
function watchFiles()
{
$this->initFiles();
while (true) {
$fds = $this->ifds;
if (stream_select($fds, $w = null, $e = null, 0)) {
foreach ($fds as $file => $ifd) {
$events = inotify_read($ifd);
foreach ($events as $event) {
switch (true) {
case $event['mask'] & IN_MODIFY:
if (isset($this->fds[$file])) {
fseek($this->fds[$file], $this->pos[$file]);
$buf = '';
while (!feof($this->fds[$file])) {
$buf .= fread($this->fds[$file], self::BUFFER_SIZE);
}
//var_dump($file,$this->fds[$file],$buf);
$this->handler->InModify($buf, $file);
$this->pos[$file] = ftell($this->fds[$file]);
}
break;
case $event['mask'] & IN_CREATE:
//echo 'add files';
$this->addFiles();
break;
case $event['mask'] & IN_DELETE:
//echo 'dell files';
$this->deleteFiles();
break;
}
}
}
}
}
}
