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Consume process output before closing

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This commit is contained in:
Niklas Keller 2018-07-12 08:19:24 +02:00
parent 083d5a8ed5
commit b0e690d3ee
3 changed files with 74 additions and 32 deletions
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1
lib/Internal/Posix/Handle.php
View File

@ -4,6 +4,7 @@ namespace Amp\Process\Internal\Posix;
use Amp\Deferred;
use Amp\Process\Internal\ProcessHandle;
use Amp\Promise;
/** @internal */
final class Handle extends ProcessHandle

70
lib/Internal/Posix/Runner.php
View File

@ -44,7 +44,8 @@ final class Runner implements ProcessRunner
$pid = \rtrim(@\fgets($stream));
/** @var $deferreds Deferred[] */
/** @var Handle $handle */
/** @var Deferred[] $deferreds */
list($handle, $pipes, $deferreds) = $data;
if (!$pid || !\is_numeric($pid)) {
@ -67,11 +68,47 @@ final class Runner implements ProcessRunner
$deferreds[1]->resolve($pipes[1]);
$deferreds[2]->resolve($pipes[2]);
if ("" !== $exitCode = \rtrim(@\fgets($stream))) {
$handle->status = ProcessStatus::ENDED;
$handle->joinDeferred->resolve((int) $exitCode);
self::free($handle);
return;
}
if ($handle->extraDataPipeWatcher !== null) {
Loop::enable($handle->extraDataPipeWatcher);
}
}
private static function free(Handle $handle)
{
/** @var Handle $handle */
if ($handle->extraDataPipeWatcher !== null) {
Loop::cancel($handle->extraDataPipeWatcher);
$handle->extraDataPipeWatcher = null;
}
/** @var Handle $handle */
if ($handle->extraDataPipeStartWatcher !== null) {
Loop::cancel($handle->extraDataPipeStartWatcher);
$handle->extraDataPipeStartWatcher = null;
}
if (\is_resource($handle->extraDataPipe)) {
\fclose($handle->extraDataPipe);
}
$handle->stdin->close();
$handle->stdout->close();
$handle->stderr->close();
if (\is_resource($handle->proc)) {
\proc_close($handle->proc);
}
}
/** @inheritdoc */
public function start(string $command, string $cwd = null, array $env = [], array $options = []): ProcessHandle
{
@ -164,7 +201,7 @@ final class Runner implements ProcessRunner
$handle->joinDeferred->fail(new ProcessException("The process was killed"));
}
$this->free($handle);
self::free($handle);
}
/** @inheritdoc */
@ -189,33 +226,6 @@ final class Runner implements ProcessRunner
}
}
$this->free($handle);
}
private function free(Handle $handle)
{
/** @var Handle $handle */
if ($handle->extraDataPipeWatcher !== null) {
Loop::cancel($handle->extraDataPipeWatcher);
$handle->extraDataPipeWatcher = null;
}
/** @var Handle $handle */
if ($handle->extraDataPipeStartWatcher !== null) {
Loop::cancel($handle->extraDataPipeStartWatcher);
$handle->extraDataPipeStartWatcher = null;
}
if (\is_resource($handle->extraDataPipe)) {
\fclose($handle->extraDataPipe);
}
$handle->stdin->close();
$handle->stdout->close();
$handle->stderr->close();
if (\is_resource($handle->proc)) {
\proc_close($handle->proc);
}
self::free($handle);
}
}

35
lib/ProcessInputStream.php
View File

@ -28,6 +28,9 @@ class ProcessInputStream implements InputStream
/** @var StreamException|null */
private $error;
/** @var string|null */
private $buffer;
public function __construct(Promise $resourceStreamPromise)
{
$resourceStreamPromise->onResolve(function ($error, $resourceStream) {
@ -48,13 +51,24 @@ class ProcessInputStream implements InputStream
}
if ($this->shouldClose) {
if ($this->resourceStream->getResource()) {
$this->buffer .= \stream_get_contents($this->resourceStream->getResource());
}
$this->resourceStream->close();
}
if ($this->initialRead) {
$initialRead = $this->initialRead;
$this->initialRead = null;
$initialRead->resolve($this->shouldClose ? null : $this->resourceStream->read());
if ($this->buffer !== null) {
$buffer = $this->buffer;
$this->buffer = null;
$initialRead->resolve($buffer);
} else {
$initialRead->resolve($this->shouldClose ? null : $this->resourceStream->read());
}
}
});
}
@ -66,6 +80,12 @@ class ProcessInputStream implements InputStream
throw new PendingReadError;
}
if ($this->buffer !== null) {
$buffer = $this->buffer;
$this->buffer = null;
return $buffer;
}
if ($this->error) {
throw $this->error;
}
@ -105,10 +125,21 @@ class ProcessInputStream implements InputStream
{
$this->shouldClose = true;
if ($this->resourceStream->getResource()) {
$this->buffer .= \stream_get_contents($this->resourceStream->getResource());
}
if ($this->initialRead) {
$initialRead = $this->initialRead;
$this->initialRead = null;
$initialRead->resolve();
if ($this->buffer !== null) {
$buffer = $this->buffer;
$this->buffer = null;
$initialRead->resolve($buffer);
} else {
$initialRead->resolve(null);
}
}
if ($this->resourceStream) {