mirror of
https://github.com/danog/file.git
synced 2024-11-30 04:19:39 +01:00
495 lines
13 KiB
PHP
495 lines
13 KiB
PHP
<?php
|
|
|
|
namespace Amp\File;
|
|
|
|
use Amp\Promise;
|
|
use Amp\Success;
|
|
use Amp\Failure;
|
|
use Amp\Deferred;
|
|
|
|
class EioDriver implements Driver {
|
|
private static $isEioInitialized = false;
|
|
private $stream;
|
|
private $watcher;
|
|
private $callableDelReq;
|
|
private $internalIncrement;
|
|
private $internalDecrement;
|
|
private $pending = 0;
|
|
|
|
public function __construct() {
|
|
if (empty(self::$isEioInitialized)) {
|
|
\eio_init();
|
|
self::$isEioInitialized = true;
|
|
}
|
|
$this->stream = \eio_get_event_stream();
|
|
$this->callableDelReq = function() {
|
|
$this->decrementPending();
|
|
};
|
|
$this->internalIncrement = function() {
|
|
$this->incrementPending();
|
|
};
|
|
$this->internalDecrement = function() {
|
|
$this->decrementPending();
|
|
};
|
|
$this->watcher = \Amp\onReadable($this->stream, function() {
|
|
while (\eio_npending()) {
|
|
\eio_poll();
|
|
}
|
|
}, $options = ["enable" => false]);
|
|
}
|
|
|
|
private function incrementPending() {
|
|
if ($this->pending++ === 0) {
|
|
\Amp\enable($this->watcher);
|
|
}
|
|
}
|
|
|
|
private function decrementPending() {
|
|
if ($this->pending-- === 1) {
|
|
\Amp\disable($this->watcher);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* {@inheritdoc}
|
|
*/
|
|
public function stat($path) {
|
|
if ($stat = StatCache::get($path)) {
|
|
return new Success($stat);
|
|
}
|
|
|
|
$this->incrementPending();
|
|
$promisor = new Deferred;
|
|
$priority = \EIO_PRI_DEFAULT;
|
|
$data = [$promisor, $path];
|
|
\eio_stat($path, $priority, [$this, "onStat"], $data);
|
|
|
|
return $promisor->promise();
|
|
}
|
|
|
|
private function onStat($data, $result, $req) {
|
|
list($promisor, $path) = $data;
|
|
$this->decrementPending();
|
|
if ($result === -1) {
|
|
$promisor->succeed(null);
|
|
} else {
|
|
StatCache::set($path, $result);
|
|
$promisor->succeed($result);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* {@inheritdoc}
|
|
*/
|
|
public function exists($path) {
|
|
$promisor = new Deferred;
|
|
$this->stat($path)->when(function ($error, $result) use ($promisor) {
|
|
$promisor->succeed((bool) $result);
|
|
});
|
|
|
|
return $promisor->promise();
|
|
}
|
|
|
|
/**
|
|
* {@inheritdoc}
|
|
*/
|
|
public function isdir($path) {
|
|
$promisor = new Deferred;
|
|
$this->stat($path)->when(function ($error, $result) use ($promisor) {
|
|
if ($result) {
|
|
$promisor->succeed(!($result["mode"] & \EIO_S_IFREG));
|
|
} else {
|
|
$promisor->succeed(false);
|
|
}
|
|
});
|
|
|
|
return $promisor->promise();
|
|
}
|
|
|
|
/**
|
|
* {@inheritdoc}
|
|
*/
|
|
public function isfile($path) {
|
|
$promisor = new Deferred;
|
|
$this->stat($path)->when(function ($error, $result) use ($promisor) {
|
|
if ($result) {
|
|
$promisor->succeed((bool) ($result["mode"] & \EIO_S_IFREG));
|
|
} else {
|
|
$promisor->succeed(false);
|
|
}
|
|
});
|
|
|
|
return $promisor->promise();
|
|
}
|
|
|
|
/**
|
|
* {@inheritdoc}
|
|
*/
|
|
public function size($path) {
|
|
$promisor = new Deferred;
|
|
$this->stat($path)->when(function ($error, $result) use ($promisor) {
|
|
if (empty($result)) {
|
|
$promisor->fail(new FilesystemException(
|
|
"Specified path does not exist"
|
|
));
|
|
} elseif (($result["mode"] & \EIO_S_IFREG)) {
|
|
$promisor->succeed($result["size"]);
|
|
} else {
|
|
$promisor->fail(new FilesystemException(
|
|
"Specified path is not a regular file"
|
|
));
|
|
}
|
|
});
|
|
|
|
return $promisor->promise();
|
|
}
|
|
|
|
/**
|
|
* {@inheritdoc}
|
|
*/
|
|
public function mtime($path) {
|
|
$promisor = new Deferred;
|
|
$this->stat($path)->when(function ($error, $result) use ($promisor) {
|
|
if ($result) {
|
|
$promisor->succeed($result["mtime"]);
|
|
} else {
|
|
$promisor->fail(new FilesystemException(
|
|
"Specified path does not exist"
|
|
));
|
|
}
|
|
});
|
|
|
|
return $promisor->promise();
|
|
}
|
|
|
|
/**
|
|
* {@inheritdoc}
|
|
*/
|
|
public function atime($path) {
|
|
$promisor = new Deferred;
|
|
$this->stat($path)->when(function ($error, $result) use ($promisor) {
|
|
if ($result) {
|
|
$promisor->succeed($result["atime"]);
|
|
} else {
|
|
$promisor->fail(new FilesystemException(
|
|
"Specified path does not exist"
|
|
));
|
|
}
|
|
});
|
|
|
|
return $promisor->promise();
|
|
}
|
|
|
|
/**
|
|
* {@inheritdoc}
|
|
*/
|
|
public function ctime($path) {
|
|
$promisor = new Deferred;
|
|
$this->stat($path)->when(function ($error, $result) use ($promisor) {
|
|
if ($result) {
|
|
$promisor->succeed($result["ctime"]);
|
|
} else {
|
|
$promisor->fail(new FilesystemException(
|
|
"Specified path does not exist"
|
|
));
|
|
}
|
|
});
|
|
|
|
return $promisor->promise();
|
|
}
|
|
|
|
/**
|
|
* {@inheritdoc}
|
|
*/
|
|
public function lstat($path) {
|
|
$this->incrementPending();
|
|
$promisor = new Deferred;
|
|
$priority = \EIO_PRI_DEFAULT;
|
|
\eio_lstat($path, $priority, [$this, "onLstat"], $promisor);
|
|
|
|
return $promisor->promise();
|
|
}
|
|
|
|
private function onLstat($promisor, $result, $req) {
|
|
$this->decrementPending();
|
|
if ($result === -1) {
|
|
$promisor->succeed(null);
|
|
} else {
|
|
$promisor->succeed($result);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* {@inheritdoc}
|
|
*/
|
|
public function symlink($target, $link) {
|
|
$this->incrementPending();
|
|
$promisor = new Deferred;
|
|
$priority = \EIO_PRI_DEFAULT;
|
|
\eio_symlink($target, $link, $priority, [$this, "onGenericResult"], $promisor);
|
|
|
|
return $promisor->promise();
|
|
}
|
|
|
|
private function onGenericResult($promisor, $result, $req) {
|
|
$this->decrementPending();
|
|
if ($result === -1) {
|
|
$promisor->fail(new FilesystemException(
|
|
\eio_get_last_error($req)
|
|
));
|
|
} else {
|
|
$promisor->succeed(true);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* {@inheritdoc}
|
|
*/
|
|
public function rename($from, $to) {
|
|
$this->incrementPending();
|
|
$promisor = new Deferred;
|
|
$priority = \EIO_PRI_DEFAULT;
|
|
\eio_rename($from, $to, $priority, [$this, "onGenericResult"], $promisor);
|
|
|
|
return $promisor->promise();
|
|
}
|
|
|
|
/**
|
|
* {@inheritdoc}
|
|
*/
|
|
public function unlink($path) {
|
|
$this->incrementPending();
|
|
$promisor = new Deferred;
|
|
$priority = \EIO_PRI_DEFAULT;
|
|
$data = [$promisor, $path];
|
|
\eio_unlink($path, $priority, [$this, "onUnlink"], $data);
|
|
|
|
return $promisor->promise();
|
|
}
|
|
|
|
private function onUnlink($data, $result, $req) {
|
|
list($promisor, $path) = $data;
|
|
$this->decrementPending();
|
|
if ($result === -1) {
|
|
$promisor->fail(new FilesystemException(
|
|
\eio_get_last_error($req)
|
|
));
|
|
} else {
|
|
StatCache::clear($path);
|
|
$promisor->succeed(true);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* {@inheritdoc}
|
|
*/
|
|
public function mkdir($path, $mode = 0644) {
|
|
$this->incrementPending();
|
|
$promisor = new Deferred;
|
|
$priority = \EIO_PRI_DEFAULT;
|
|
\eio_mkdir($path, $mode, $priority, [$this, "onGenericResult"], $promisor);
|
|
|
|
return $promisor->promise();
|
|
}
|
|
|
|
/**
|
|
* {@inheritdoc}
|
|
*/
|
|
public function rmdir($path) {
|
|
$this->incrementPending();
|
|
$promisor = new Deferred;
|
|
$priority = \EIO_PRI_DEFAULT;
|
|
$data = [$promisor, $path];
|
|
\eio_rmdir($path, $priority, [$this, "onRmdir"], $data);
|
|
|
|
return $promisor->promise();
|
|
}
|
|
|
|
private function onRmdir($data, $result, $req) {
|
|
list($promisor, $path) = $data;
|
|
$this->decrementPending();
|
|
if ($result === -1) {
|
|
$promisor->fail(new FilesystemException(
|
|
\eio_get_last_error($req)
|
|
));
|
|
} else {
|
|
StatCache::clear($path);
|
|
$promisor->succeed(true);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* {@inheritdoc}
|
|
*/
|
|
public function scandir($path) {
|
|
$this->incrementPending();
|
|
$promisor = new Deferred;
|
|
$flags = \EIO_READDIR_STAT_ORDER | \EIO_READDIR_DIRS_FIRST;
|
|
$priority = \EIO_PRI_DEFAULT;
|
|
\eio_readdir($path, $flags, $priority, [$this, "onScandir"], $promisor);
|
|
|
|
return $promisor->promise();
|
|
}
|
|
|
|
private function onScandir($promisor, $result, $req) {
|
|
$this->decrementPending();
|
|
if ($result === -1) {
|
|
$promisor->fail(new FilesystemException(
|
|
\eio_get_last_error($req)
|
|
));
|
|
} else {
|
|
$promisor->succeed($result["names"]);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* {@inheritdoc}
|
|
*/
|
|
public function chmod($path, $mode) {
|
|
$this->incrementPending();
|
|
$promisor = new Deferred;
|
|
$priority = \EIO_PRI_DEFAULT;
|
|
\eio_chmod($path, $mode, $priority, [$this, "onGenericResult"], $promisor);
|
|
|
|
return $promisor->promise();
|
|
}
|
|
|
|
/**
|
|
* {@inheritdoc}
|
|
*/
|
|
public function chown($path, $uid, $gid) {
|
|
$this->incrementPending();
|
|
$promisor = new Deferred;
|
|
$priority = \EIO_PRI_DEFAULT;
|
|
\eio_chown($path, $uid, $gid, $priority, [$this, "onGenericResult"], $promisor);
|
|
|
|
return $promisor->promise();
|
|
}
|
|
|
|
/**
|
|
* {@inheritdoc}
|
|
*/
|
|
public function touch($path) {
|
|
$atime = $mtime = time();
|
|
$promisor = new Deferred;
|
|
$priority = \EIO_PRI_DEFAULT;
|
|
\eio_utime($path, $atime, $mtime, $priority, [$this, "onGenericResult"], $promisor);
|
|
|
|
return $promisor->promise();
|
|
}
|
|
|
|
/**
|
|
* {@inheritdoc}
|
|
*/
|
|
public function get($path) {
|
|
$flags = $flags = \EIO_O_RDONLY;
|
|
$mode = 0;
|
|
$priority = \EIO_PRI_DEFAULT;
|
|
|
|
$this->incrementPending();
|
|
$promisor = new Deferred;
|
|
\eio_open($path, $flags, $mode, $priority, [$this, "onGetOpen"], $promisor);
|
|
|
|
return $promisor->promise();
|
|
}
|
|
|
|
private function onGetOpen($promisor, $result, $req) {
|
|
if ($result === -1) {
|
|
$promisor->fail(new FilesystemException(
|
|
\eio_get_last_error($req)
|
|
));
|
|
} else {
|
|
$priority = \EIO_PRI_DEFAULT;
|
|
\eio_fstat($result, $priority, [$this, "onGetFstat"], [$result, $promisor]);
|
|
}
|
|
}
|
|
|
|
private function onGetFstat($fhAndPromisor, $result, $req) {
|
|
list($fh, $promisor) = $fhAndPromisor;
|
|
if ($result === -1) {
|
|
$promisor->fail(new FilesystemException(
|
|
\eio_get_last_error($req)
|
|
));
|
|
return;
|
|
}
|
|
|
|
$offset = 0;
|
|
$length = $result["size"];
|
|
$priority = \EIO_PRI_DEFAULT;
|
|
\eio_read($fh, $length, $offset, $priority, [$this, "onGetRead"], $fhAndPromisor);
|
|
}
|
|
|
|
private function onGetRead($fhAndPromisor, $result, $req) {
|
|
list($fh, $promisor) = $fhAndPromisor;
|
|
$priority = \EIO_PRI_DEFAULT;
|
|
\eio_close($fh, $priority, $this->callableDelReq);
|
|
if ($result === -1) {
|
|
$promisor->fail(new FilesystemException(
|
|
\eio_get_last_error($req)
|
|
));
|
|
} else {
|
|
$promisor->succeed($result);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* {@inheritdoc}
|
|
*/
|
|
public function put($path, $contents) {
|
|
$flags = \EIO_O_RDWR | \EIO_O_CREAT;
|
|
$mode = \EIO_S_IRUSR | \EIO_S_IWUSR | \EIO_S_IXUSR;
|
|
$priority = \EIO_PRI_DEFAULT;
|
|
|
|
$this->incrementPending();
|
|
$promisor = new Deferred;
|
|
$data = [$contents, $promisor];
|
|
\eio_open($path, $flags, $mode, $priority, [$this, "onPutOpen"], $data);
|
|
|
|
return $promisor->promise();
|
|
}
|
|
|
|
private function onPutOpen($data, $result, $req) {
|
|
list($contents, $promisor) = $data;
|
|
if ($result === -1) {
|
|
$promisor->fail(new FilesystemException(
|
|
\eio_get_last_error($req)
|
|
));
|
|
} else {
|
|
$length = strlen($contents);
|
|
$offset = 0;
|
|
$priority = \EIO_PRI_DEFAULT;
|
|
$callback = [$this, "onPutWrite"];
|
|
$fhAndPromisor = [$result, $promisor];
|
|
\eio_write($result, $contents, $length, $offset, $priority, $callback, $fhAndPromisor);
|
|
}
|
|
}
|
|
|
|
private function onPutWrite($fhAndPromisor, $result, $req) {
|
|
list($fh, $promisor) = $fhAndPromisor;
|
|
\eio_close($fh);
|
|
$priority = \EIO_PRI_DEFAULT;
|
|
\eio_close($fh, $priority, $this->callableDelReq);
|
|
if ($result === -1) {
|
|
$promisor->fail(new FilesystemException(
|
|
\eio_get_last_error($req)
|
|
));
|
|
} else {
|
|
$promisor->succeed($result);
|
|
}
|
|
}
|
|
|
|
public function __destruct() {
|
|
$this->stream = null;
|
|
\Amp\cancel($this->watcher);
|
|
|
|
/**
|
|
* pecl/eio has a race condition issue when freeing threaded
|
|
* resources and we can get intermittent segfaults at script
|
|
* shutdown in certain cases if we don't wait for a moment.
|
|
*
|
|
* @TODO see if we can PR a fix for this problem in pecl/eio
|
|
*/
|
|
usleep(1000);
|
|
}
|
|
}
|