|
12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970717273747576777879808182838485868788899091929394959697989910010110210310410510610710810911011111211311411511611711811912012112212312412512612712812913013113213313413513613713813914014114214314414514614714814915015115215315415515615715815916016116216316416516616716816917017117217317417517617717817918018118218318418518618718818919019119219319419519619719819920020120220320420520620720820921021121221321421521621721821922022122222322422522622722822923023123223323423523623723823924024124224324424524624724824925025125225325425525625725825926026126226326426526626726826927027127227327427527627727827928028128228328428528628728828929029129229329429529629729829930030130230330430530630730830931031131231331431531631731831932032132232332432532632732832933033133233333433533633733833934034134234334434534634734834935035135235335435535635735835936036136236336436536636736836937037137237337437537637737837938038138238338438538638738838939039139239339439539639739839940040140240340440540640740840941041141241341441541641741841942042142242342442542642742842943043143243343443543643743843944044144244344444544644744844945045145245345445545645745845946046146246346446546646746846947047147247347447547647747847948048148248348448548648748848949049149249349449549649749849950050150250350450550650750850951051151251351451551651751851952052152252352452552652752852953053153253353453553653753853954054154254354454554654754854955055155255355455555655755855956056156256356456556656756856957057157257357457557657757857958058158258358458558658758858959059159259359459559659759859960060160260360460560660760860961061161261361461561661761861962062162262362462562662762862963063163263363463563663763863964064164264364464564664764864965065165265365465565665765865966066166266366466566666766866967067167267367467567667767867968068168268368468568668768868969069169269369469569669769869970070170270370470570670770870971071171271371471571671771871972072172272372472572672772872973073173273373473573673773873974074174274374474574674774874975075175275375475575675775875976076176276376476576676776876977077177277377477577677777877978078178278378478578678778878979079179279379479579679779879980080180280380480580680780880981081181281381481581681781881982082182282382482582682782882983083183283383483583683783883984084184284384484584684784884985085185285385485585685785885986086186286386486586686786886987087187287387487587687787887988088188288388488588688788888989089189289389489589689789889990090190290390490590690790890991091191291391491591691791891992092192292392492592692792892993093193293393493593693793893994094194294394494594694794894995095195295395495595695795895996096196296396496596696796896997097197297397497597697797897998098198298398498598698798898999099199299399499599699799899910001001100210031004100510061007100810091010101110121013101410151016101710181019102010211022102310241025102610271028102910301031103210331034103510361037103810391040104110421043104410451046104710481049105010511052105310541055105610571058105910601061106210631064106510661067106810691070107110721073107410751076107710781079108010811082108310841085108610871088108910901091109210931094109510961097109810991100110111021103110411051106110711081109111011111112111311141115111611171118111911201121112211231124112511261127112811291130113111321133113411351136113711381139114011411142114311441145114611471148114911501151115211531154115511561157115811591160116111621163116411651166116711681169117011711172117311741175117611771178117911801181118211831184118511861187118811891190119111921193119411951196119711981199120012011202120312041205 |
- <?php
- // +----------------------------------------------------------------------
- // | ThinkPHP [ WE CAN DO IT JUST THINK ]
- // +----------------------------------------------------------------------
- // | Copyright (c) 2006~2015 http://thinkphp.cn All rights reserved.
- // +----------------------------------------------------------------------
- // | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
- // +----------------------------------------------------------------------
- // | Author: yunwuxin <448901948@qq.com>
- // +----------------------------------------------------------------------
-
- namespace think;
-
- use think\process\exception\Failed as ProcessFailedException;
- use think\process\exception\Timeout as ProcessTimeoutException;
- use think\process\pipes\Pipes;
- use think\process\pipes\Unix as UnixPipes;
- use think\process\pipes\Windows as WindowsPipes;
- use think\process\Utils;
-
- class Process
- {
-
- const ERR = 'err';
- const OUT = 'out';
-
- const STATUS_READY = 'ready';
- const STATUS_STARTED = 'started';
- const STATUS_TERMINATED = 'terminated';
-
- const STDIN = 0;
- const STDOUT = 1;
- const STDERR = 2;
-
- const TIMEOUT_PRECISION = 0.2;
-
- private $callback;
- private $commandline;
- private $cwd;
- private $env;
- private $input;
- private $starttime;
- private $lastOutputTime;
- private $timeout;
- private $idleTimeout;
- private $options;
- private $exitcode;
- private $fallbackExitcode;
- private $processInformation;
- private $outputDisabled = false;
- private $stdout;
- private $stderr;
- private $enhanceWindowsCompatibility = true;
- private $enhanceSigchildCompatibility;
- private $process;
- private $status = self::STATUS_READY;
- private $incrementalOutputOffset = 0;
- private $incrementalErrorOutputOffset = 0;
- private $tty;
- private $pty;
-
- private $useFileHandles = false;
-
- /** @var Pipes */
- private $processPipes;
-
- private $latestSignal;
-
- private static $sigchild;
-
- /**
- * @var array
- */
- public static $exitCodes = [
- 0 => 'OK',
- 1 => 'General error',
- 2 => 'Misuse of shell builtins',
- 126 => 'Invoked command cannot execute',
- 127 => 'Command not found',
- 128 => 'Invalid exit argument',
- // signals
- 129 => 'Hangup',
- 130 => 'Interrupt',
- 131 => 'Quit and dump core',
- 132 => 'Illegal instruction',
- 133 => 'Trace/breakpoint trap',
- 134 => 'Process aborted',
- 135 => 'Bus error: "access to undefined portion of memory object"',
- 136 => 'Floating point exception: "erroneous arithmetic operation"',
- 137 => 'Kill (terminate immediately)',
- 138 => 'User-defined 1',
- 139 => 'Segmentation violation',
- 140 => 'User-defined 2',
- 141 => 'Write to pipe with no one reading',
- 142 => 'Signal raised by alarm',
- 143 => 'Termination (request to terminate)',
- // 144 - not defined
- 145 => 'Child process terminated, stopped (or continued*)',
- 146 => 'Continue if stopped',
- 147 => 'Stop executing temporarily',
- 148 => 'Terminal stop signal',
- 149 => 'Background process attempting to read from tty ("in")',
- 150 => 'Background process attempting to write to tty ("out")',
- 151 => 'Urgent data available on socket',
- 152 => 'CPU time limit exceeded',
- 153 => 'File size limit exceeded',
- 154 => 'Signal raised by timer counting virtual time: "virtual timer expired"',
- 155 => 'Profiling timer expired',
- // 156 - not defined
- 157 => 'Pollable event',
- // 158 - not defined
- 159 => 'Bad syscall',
- ];
-
- /**
- * 构造方法
- * @param string $commandline 指令
- * @param string|null $cwd 工作目录
- * @param array|null $env 环境变量
- * @param string|null $input 输入
- * @param int|float|null $timeout 超时时间
- * @param array $options proc_open的选项
- * @throws \RuntimeException
- * @api
- */
- public function __construct($commandline, $cwd = null, array $env = null, $input = null, $timeout = 60, array $options = [])
- {
- if (!function_exists('proc_open')) {
- throw new \RuntimeException('The Process class relies on proc_open, which is not available on your PHP installation.');
- }
-
- $this->commandline = $commandline;
- $this->cwd = $cwd;
-
- if (null === $this->cwd && (defined('ZEND_THREAD_SAFE') || '\\' === DS)) {
- $this->cwd = getcwd();
- }
- if (null !== $env) {
- $this->setEnv($env);
- }
-
- $this->input = $input;
- $this->setTimeout($timeout);
- $this->useFileHandles = '\\' === DS;
- $this->pty = false;
- $this->enhanceWindowsCompatibility = true;
- $this->enhanceSigchildCompatibility = '\\' !== DS && $this->isSigchildEnabled();
- $this->options = array_replace([
- 'suppress_errors' => true,
- 'binary_pipes' => true,
- ], $options);
- }
-
- public function __destruct()
- {
- $this->stop();
- }
-
- public function __clone()
- {
- $this->resetProcessData();
- }
-
- /**
- * 运行指令
- * @param callback|null $callback
- * @return int
- */
- public function run($callback = null)
- {
- $this->start($callback);
-
- return $this->wait();
- }
-
- /**
- * 运行指令
- * @param callable|null $callback
- * @return self
- * @throws \RuntimeException
- * @throws ProcessFailedException
- */
- public function mustRun($callback = null)
- {
- if ($this->isSigchildEnabled() && !$this->enhanceSigchildCompatibility) {
- throw new \RuntimeException('This PHP has been compiled with --enable-sigchild. You must use setEnhanceSigchildCompatibility() to use this method.');
- }
-
- if (0 !== $this->run($callback)) {
- throw new ProcessFailedException($this);
- }
-
- return $this;
- }
-
- /**
- * 启动进程并写到 STDIN 输入后返回。
- * @param callable|null $callback
- * @throws \RuntimeException
- * @throws \RuntimeException
- * @throws \LogicException
- */
- public function start($callback = null)
- {
- if ($this->isRunning()) {
- throw new \RuntimeException('Process is already running');
- }
- if ($this->outputDisabled && null !== $callback) {
- throw new \LogicException('Output has been disabled, enable it to allow the use of a callback.');
- }
-
- $this->resetProcessData();
- $this->starttime = $this->lastOutputTime = microtime(true);
- $this->callback = $this->buildCallback($callback);
- $descriptors = $this->getDescriptors();
-
- $commandline = $this->commandline;
-
- if ('\\' === DS && $this->enhanceWindowsCompatibility) {
- $commandline = 'cmd /V:ON /E:ON /C "(' . $commandline . ')';
- foreach ($this->processPipes->getFiles() as $offset => $filename) {
- $commandline .= ' ' . $offset . '>' . Utils::escapeArgument($filename);
- }
- $commandline .= '"';
-
- if (!isset($this->options['bypass_shell'])) {
- $this->options['bypass_shell'] = true;
- }
- }
-
- $this->process = proc_open($commandline, $descriptors, $this->processPipes->pipes, $this->cwd, $this->env, $this->options);
-
- if (!is_resource($this->process)) {
- throw new \RuntimeException('Unable to launch a new process.');
- }
- $this->status = self::STATUS_STARTED;
-
- if ($this->tty) {
- return;
- }
-
- $this->updateStatus(false);
- $this->checkTimeout();
- }
-
- /**
- * 重启进程
- * @param callable|null $callback
- * @return Process
- * @throws \RuntimeException
- * @throws \RuntimeException
- */
- public function restart($callback = null)
- {
- if ($this->isRunning()) {
- throw new \RuntimeException('Process is already running');
- }
-
- $process = clone $this;
- $process->start($callback);
-
- return $process;
- }
-
- /**
- * 等待要终止的进程
- * @param callable|null $callback
- * @return int
- */
- public function wait($callback = null)
- {
- $this->requireProcessIsStarted(__FUNCTION__);
-
- $this->updateStatus(false);
- if (null !== $callback) {
- $this->callback = $this->buildCallback($callback);
- }
-
- do {
- $this->checkTimeout();
- $running = '\\' === DS ? $this->isRunning() : $this->processPipes->areOpen();
- $close = '\\' !== DS || !$running;
- $this->readPipes(true, $close);
- } while ($running);
-
- while ($this->isRunning()) {
- usleep(1000);
- }
-
- if ($this->processInformation['signaled'] && $this->processInformation['termsig'] !== $this->latestSignal) {
- throw new \RuntimeException(sprintf('The process has been signaled with signal "%s".', $this->processInformation['termsig']));
- }
-
- return $this->exitcode;
- }
-
- /**
- * 获取PID
- * @return int|null
- * @throws \RuntimeException
- */
- public function getPid()
- {
- if ($this->isSigchildEnabled()) {
- throw new \RuntimeException('This PHP has been compiled with --enable-sigchild. The process identifier can not be retrieved.');
- }
-
- $this->updateStatus(false);
-
- return $this->isRunning() ? $this->processInformation['pid'] : null;
- }
-
- /**
- * 将一个 POSIX 信号发送到进程中
- * @param int $signal
- * @return Process
- */
- public function signal($signal)
- {
- $this->doSignal($signal, true);
-
- return $this;
- }
-
- /**
- * 禁用从底层过程获取输出和错误输出。
- * @return Process
- */
- public function disableOutput()
- {
- if ($this->isRunning()) {
- throw new \RuntimeException('Disabling output while the process is running is not possible.');
- }
- if (null !== $this->idleTimeout) {
- throw new \LogicException('Output can not be disabled while an idle timeout is set.');
- }
-
- $this->outputDisabled = true;
-
- return $this;
- }
-
- /**
- * 开启从底层过程获取输出和错误输出。
- * @return Process
- * @throws \RuntimeException
- */
- public function enableOutput()
- {
- if ($this->isRunning()) {
- throw new \RuntimeException('Enabling output while the process is running is not possible.');
- }
-
- $this->outputDisabled = false;
-
- return $this;
- }
-
- /**
- * 输出是否禁用
- * @return bool
- */
- public function isOutputDisabled()
- {
- return $this->outputDisabled;
- }
-
- /**
- * 获取当前的输出管道
- * @return string
- * @throws \LogicException
- * @throws \LogicException
- * @api
- */
- public function getOutput()
- {
- if ($this->outputDisabled) {
- throw new \LogicException('Output has been disabled.');
- }
-
- $this->requireProcessIsStarted(__FUNCTION__);
-
- $this->readPipes(false, '\\' === DS ? !$this->processInformation['running'] : true);
-
- return $this->stdout;
- }
-
- /**
- * 以增量方式返回的输出结果。
- * @return string
- */
- public function getIncrementalOutput()
- {
- $this->requireProcessIsStarted(__FUNCTION__);
-
- $data = $this->getOutput();
-
- $latest = substr($data, $this->incrementalOutputOffset);
-
- if (false === $latest) {
- return '';
- }
-
- $this->incrementalOutputOffset = strlen($data);
-
- return $latest;
- }
-
- /**
- * 清空输出
- * @return Process
- */
- public function clearOutput()
- {
- $this->stdout = '';
- $this->incrementalOutputOffset = 0;
-
- return $this;
- }
-
- /**
- * 返回当前的错误输出的过程 (STDERR)。
- * @return string
- */
- public function getErrorOutput()
- {
- if ($this->outputDisabled) {
- throw new \LogicException('Output has been disabled.');
- }
-
- $this->requireProcessIsStarted(__FUNCTION__);
-
- $this->readPipes(false, '\\' === DS ? !$this->processInformation['running'] : true);
-
- return $this->stderr;
- }
-
- /**
- * 以增量方式返回 errorOutput
- * @return string
- */
- public function getIncrementalErrorOutput()
- {
- $this->requireProcessIsStarted(__FUNCTION__);
-
- $data = $this->getErrorOutput();
-
- $latest = substr($data, $this->incrementalErrorOutputOffset);
-
- if (false === $latest) {
- return '';
- }
-
- $this->incrementalErrorOutputOffset = strlen($data);
-
- return $latest;
- }
-
- /**
- * 清空 errorOutput
- * @return Process
- */
- public function clearErrorOutput()
- {
- $this->stderr = '';
- $this->incrementalErrorOutputOffset = 0;
-
- return $this;
- }
-
- /**
- * 获取退出码
- * @return null|int
- */
- public function getExitCode()
- {
- if ($this->isSigchildEnabled() && !$this->enhanceSigchildCompatibility) {
- throw new \RuntimeException('This PHP has been compiled with --enable-sigchild. You must use setEnhanceSigchildCompatibility() to use this method.');
- }
-
- $this->updateStatus(false);
-
- return $this->exitcode;
- }
-
- /**
- * 获取退出文本
- * @return null|string
- */
- public function getExitCodeText()
- {
- if (null === $exitcode = $this->getExitCode()) {
- return;
- }
-
- return isset(self::$exitCodes[$exitcode]) ? self::$exitCodes[$exitcode] : 'Unknown error';
- }
-
- /**
- * 检查是否成功
- * @return bool
- */
- public function isSuccessful()
- {
- return 0 === $this->getExitCode();
- }
-
- /**
- * 是否未捕获的信号已被终止子进程
- * @return bool
- */
- public function hasBeenSignaled()
- {
- $this->requireProcessIsTerminated(__FUNCTION__);
-
- if ($this->isSigchildEnabled()) {
- throw new \RuntimeException('This PHP has been compiled with --enable-sigchild. Term signal can not be retrieved.');
- }
-
- $this->updateStatus(false);
-
- return $this->processInformation['signaled'];
- }
-
- /**
- * 返回导致子进程终止其执行的数。
- * @return int
- */
- public function getTermSignal()
- {
- $this->requireProcessIsTerminated(__FUNCTION__);
-
- if ($this->isSigchildEnabled()) {
- throw new \RuntimeException('This PHP has been compiled with --enable-sigchild. Term signal can not be retrieved.');
- }
-
- $this->updateStatus(false);
-
- return $this->processInformation['termsig'];
- }
-
- /**
- * 检查子进程信号是否已停止
- * @return bool
- */
- public function hasBeenStopped()
- {
- $this->requireProcessIsTerminated(__FUNCTION__);
-
- $this->updateStatus(false);
-
- return $this->processInformation['stopped'];
- }
-
- /**
- * 返回导致子进程停止其执行的数。
- * @return int
- */
- public function getStopSignal()
- {
- $this->requireProcessIsTerminated(__FUNCTION__);
-
- $this->updateStatus(false);
-
- return $this->processInformation['stopsig'];
- }
-
- /**
- * 检查是否正在运行
- * @return bool
- */
- public function isRunning()
- {
- if (self::STATUS_STARTED !== $this->status) {
- return false;
- }
-
- $this->updateStatus(false);
-
- return $this->processInformation['running'];
- }
-
- /**
- * 检查是否已开始
- * @return bool
- */
- public function isStarted()
- {
- return self::STATUS_READY != $this->status;
- }
-
- /**
- * 检查是否已终止
- * @return bool
- */
- public function isTerminated()
- {
- $this->updateStatus(false);
-
- return self::STATUS_TERMINATED == $this->status;
- }
-
- /**
- * 获取当前的状态
- * @return string
- */
- public function getStatus()
- {
- $this->updateStatus(false);
-
- return $this->status;
- }
-
- /**
- * 终止进程
- */
- public function stop()
- {
- if ($this->isRunning()) {
- if ('\\' === DS && !$this->isSigchildEnabled()) {
- exec(sprintf('taskkill /F /T /PID %d 2>&1', $this->getPid()), $output, $exitCode);
- if ($exitCode > 0) {
- throw new \RuntimeException('Unable to kill the process');
- }
- } else {
- $pids = preg_split('/\s+/', `ps -o pid --no-heading --ppid {$this->getPid()}`);
- foreach ($pids as $pid) {
- if (is_numeric($pid)) {
- posix_kill($pid, 9);
- }
- }
- }
- }
-
- $this->updateStatus(false);
- if ($this->processInformation['running']) {
- $this->close();
- }
-
- return $this->exitcode;
- }
-
- /**
- * 添加一行输出
- * @param string $line
- */
- public function addOutput($line)
- {
- $this->lastOutputTime = microtime(true);
- $this->stdout .= $line;
- }
-
- /**
- * 添加一行错误输出
- * @param string $line
- */
- public function addErrorOutput($line)
- {
- $this->lastOutputTime = microtime(true);
- $this->stderr .= $line;
- }
-
- /**
- * 获取被执行的指令
- * @return string
- */
- public function getCommandLine()
- {
- return $this->commandline;
- }
-
- /**
- * 设置指令
- * @param string $commandline
- * @return self
- */
- public function setCommandLine($commandline)
- {
- $this->commandline = $commandline;
-
- return $this;
- }
-
- /**
- * 获取超时时间
- * @return float|null
- */
- public function getTimeout()
- {
- return $this->timeout;
- }
-
- /**
- * 获取idle超时时间
- * @return float|null
- */
- public function getIdleTimeout()
- {
- return $this->idleTimeout;
- }
-
- /**
- * 设置超时时间
- * @param int|float|null $timeout
- * @return self
- */
- public function setTimeout($timeout)
- {
- $this->timeout = $this->validateTimeout($timeout);
-
- return $this;
- }
-
- /**
- * 设置idle超时时间
- * @param int|float|null $timeout
- * @return self
- */
- public function setIdleTimeout($timeout)
- {
- if (null !== $timeout && $this->outputDisabled) {
- throw new \LogicException('Idle timeout can not be set while the output is disabled.');
- }
-
- $this->idleTimeout = $this->validateTimeout($timeout);
-
- return $this;
- }
-
- /**
- * 设置TTY
- * @param bool $tty
- * @return self
- */
- public function setTty($tty)
- {
- if ('\\' === DS && $tty) {
- throw new \RuntimeException('TTY mode is not supported on Windows platform.');
- }
- if ($tty && (!file_exists('/dev/tty') || !is_readable('/dev/tty'))) {
- throw new \RuntimeException('TTY mode requires /dev/tty to be readable.');
- }
-
- $this->tty = (bool) $tty;
-
- return $this;
- }
-
- /**
- * 检查是否是tty模式
- * @return bool
- */
- public function isTty()
- {
- return $this->tty;
- }
-
- /**
- * 设置pty模式
- * @param bool $bool
- * @return self
- */
- public function setPty($bool)
- {
- $this->pty = (bool) $bool;
-
- return $this;
- }
-
- /**
- * 是否是pty模式
- * @return bool
- */
- public function isPty()
- {
- return $this->pty;
- }
-
- /**
- * 获取工作目录
- * @return string|null
- */
- public function getWorkingDirectory()
- {
- if (null === $this->cwd) {
- return getcwd() ?: null;
- }
-
- return $this->cwd;
- }
-
- /**
- * 设置工作目录
- * @param string $cwd
- * @return self
- */
- public function setWorkingDirectory($cwd)
- {
- $this->cwd = $cwd;
-
- return $this;
- }
-
- /**
- * 获取环境变量
- * @return array
- */
- public function getEnv()
- {
- return $this->env;
- }
-
- /**
- * 设置环境变量
- * @param array $env
- * @return self
- */
- public function setEnv(array $env)
- {
- $env = array_filter($env, function ($value) {
- return !is_array($value);
- });
-
- $this->env = [];
- foreach ($env as $key => $value) {
- $this->env[(binary) $key] = (binary) $value;
- }
-
- return $this;
- }
-
- /**
- * 获取输入
- * @return null|string
- */
- public function getInput()
- {
- return $this->input;
- }
-
- /**
- * 设置输入
- * @param mixed $input
- * @return self
- */
- public function setInput($input)
- {
- if ($this->isRunning()) {
- throw new \LogicException('Input can not be set while the process is running.');
- }
-
- $this->input = Utils::validateInput(sprintf('%s::%s', __CLASS__, __FUNCTION__), $input);
-
- return $this;
- }
-
- /**
- * 获取proc_open的选项
- * @return array
- */
- public function getOptions()
- {
- return $this->options;
- }
-
- /**
- * 设置proc_open的选项
- * @param array $options
- * @return self
- */
- public function setOptions(array $options)
- {
- $this->options = $options;
-
- return $this;
- }
-
- /**
- * 是否兼容windows
- * @return bool
- */
- public function getEnhanceWindowsCompatibility()
- {
- return $this->enhanceWindowsCompatibility;
- }
-
- /**
- * 设置是否兼容windows
- * @param bool $enhance
- * @return self
- */
- public function setEnhanceWindowsCompatibility($enhance)
- {
- $this->enhanceWindowsCompatibility = (bool) $enhance;
-
- return $this;
- }
-
- /**
- * 返回是否 sigchild 兼容模式激活
- * @return bool
- */
- public function getEnhanceSigchildCompatibility()
- {
- return $this->enhanceSigchildCompatibility;
- }
-
- /**
- * 激活 sigchild 兼容性模式。
- * @param bool $enhance
- * @return self
- */
- public function setEnhanceSigchildCompatibility($enhance)
- {
- $this->enhanceSigchildCompatibility = (bool) $enhance;
-
- return $this;
- }
-
- /**
- * 是否超时
- */
- public function checkTimeout()
- {
- if (self::STATUS_STARTED !== $this->status) {
- return;
- }
-
- if (null !== $this->timeout && $this->timeout < microtime(true) - $this->starttime) {
- $this->stop();
-
- throw new ProcessTimeoutException($this, ProcessTimeoutException::TYPE_GENERAL);
- }
-
- if (null !== $this->idleTimeout && $this->idleTimeout < microtime(true) - $this->lastOutputTime) {
- $this->stop();
-
- throw new ProcessTimeoutException($this, ProcessTimeoutException::TYPE_IDLE);
- }
- }
-
- /**
- * 是否支持pty
- * @return bool
- */
- public static function isPtySupported()
- {
- static $result;
-
- if (null !== $result) {
- return $result;
- }
-
- if ('\\' === DS) {
- return $result = false;
- }
-
- $proc = @proc_open('echo 1', [['pty'], ['pty'], ['pty']], $pipes);
- if (is_resource($proc)) {
- proc_close($proc);
-
- return $result = true;
- }
-
- return $result = false;
- }
-
- /**
- * 创建所需的 proc_open 的描述符
- * @return array
- */
- private function getDescriptors()
- {
- if ('\\' === DS) {
- $this->processPipes = WindowsPipes::create($this, $this->input);
- } else {
- $this->processPipes = UnixPipes::create($this, $this->input);
- }
- $descriptors = $this->processPipes->getDescriptors($this->outputDisabled);
-
- if (!$this->useFileHandles && $this->enhanceSigchildCompatibility && $this->isSigchildEnabled()) {
-
- $descriptors = array_merge($descriptors, [['pipe', 'w']]);
-
- $this->commandline = '(' . $this->commandline . ') 3>/dev/null; code=$?; echo $code >&3; exit $code';
- }
-
- return $descriptors;
- }
-
- /**
- * 建立 wait () 使用的回调。
- * @param callable|null $callback
- * @return callable
- */
- protected function buildCallback($callback)
- {
- $out = self::OUT;
- $callback = function ($type, $data) use ($callback, $out) {
- if ($out == $type) {
- $this->addOutput($data);
- } else {
- $this->addErrorOutput($data);
- }
-
- if (null !== $callback) {
- call_user_func($callback, $type, $data);
- }
- };
-
- return $callback;
- }
-
- /**
- * 更新状态
- * @param bool $blocking
- */
- protected function updateStatus($blocking)
- {
- if (self::STATUS_STARTED !== $this->status) {
- return;
- }
-
- $this->processInformation = proc_get_status($this->process);
- $this->captureExitCode();
-
- $this->readPipes($blocking, '\\' === DS ? !$this->processInformation['running'] : true);
-
- if (!$this->processInformation['running']) {
- $this->close();
- }
- }
-
- /**
- * 是否开启 '--enable-sigchild'
- * @return bool
- */
- protected function isSigchildEnabled()
- {
- if (null !== self::$sigchild) {
- return self::$sigchild;
- }
-
- if (!function_exists('phpinfo')) {
- return self::$sigchild = false;
- }
-
- ob_start();
- phpinfo(INFO_GENERAL);
-
- return self::$sigchild = false !== strpos(ob_get_clean(), '--enable-sigchild');
- }
-
- /**
- * 验证是否超时
- * @param int|float|null $timeout
- * @return float|null
- */
- private function validateTimeout($timeout)
- {
- $timeout = (float) $timeout;
-
- if (0.0 === $timeout) {
- $timeout = null;
- } elseif ($timeout < 0) {
- throw new \InvalidArgumentException('The timeout value must be a valid positive integer or float number.');
- }
-
- return $timeout;
- }
-
- /**
- * 读取pipes
- * @param bool $blocking
- * @param bool $close
- */
- private function readPipes($blocking, $close)
- {
- $result = $this->processPipes->readAndWrite($blocking, $close);
-
- $callback = $this->callback;
- foreach ($result as $type => $data) {
- if (3 == $type) {
- $this->fallbackExitcode = (int) $data;
- } else {
- $callback(self::STDOUT === $type ? self::OUT : self::ERR, $data);
- }
- }
- }
-
- /**
- * 捕获退出码
- */
- private function captureExitCode()
- {
- if (isset($this->processInformation['exitcode']) && -1 != $this->processInformation['exitcode']) {
- $this->exitcode = $this->processInformation['exitcode'];
- }
- }
-
- /**
- * 关闭资源
- * @return int 退出码
- */
- private function close()
- {
- $this->processPipes->close();
- if (is_resource($this->process)) {
- $exitcode = proc_close($this->process);
- } else {
- $exitcode = -1;
- }
-
- $this->exitcode = -1 !== $exitcode ? $exitcode : (null !== $this->exitcode ? $this->exitcode : -1);
- $this->status = self::STATUS_TERMINATED;
-
- if (-1 === $this->exitcode && null !== $this->fallbackExitcode) {
- $this->exitcode = $this->fallbackExitcode;
- } elseif (-1 === $this->exitcode && $this->processInformation['signaled']
- && 0 < $this->processInformation['termsig']
- ) {
- $this->exitcode = 128 + $this->processInformation['termsig'];
- }
-
- return $this->exitcode;
- }
-
- /**
- * 重置数据
- */
- private function resetProcessData()
- {
- $this->starttime = null;
- $this->callback = null;
- $this->exitcode = null;
- $this->fallbackExitcode = null;
- $this->processInformation = null;
- $this->stdout = null;
- $this->stderr = null;
- $this->process = null;
- $this->latestSignal = null;
- $this->status = self::STATUS_READY;
- $this->incrementalOutputOffset = 0;
- $this->incrementalErrorOutputOffset = 0;
- }
-
- /**
- * 将一个 POSIX 信号发送到进程中。
- * @param int $signal
- * @param bool $throwException
- * @return bool
- */
- private function doSignal($signal, $throwException)
- {
- if (!$this->isRunning()) {
- if ($throwException) {
- throw new \LogicException('Can not send signal on a non running process.');
- }
-
- return false;
- }
-
- if ($this->isSigchildEnabled()) {
- if ($throwException) {
- throw new \RuntimeException('This PHP has been compiled with --enable-sigchild. The process can not be signaled.');
- }
-
- return false;
- }
-
- if (true !== @proc_terminate($this->process, $signal)) {
- if ($throwException) {
- throw new \RuntimeException(sprintf('Error while sending signal `%s`.', $signal));
- }
-
- return false;
- }
-
- $this->latestSignal = $signal;
-
- return true;
- }
-
- /**
- * 确保进程已经开启
- * @param string $functionName
- */
- private function requireProcessIsStarted($functionName)
- {
- if (!$this->isStarted()) {
- throw new \LogicException(sprintf('Process must be started before calling %s.', $functionName));
- }
- }
-
- /**
- * 确保进程已经终止
- * @param string $functionName
- */
- private function requireProcessIsTerminated($functionName)
- {
- if (!$this->isTerminated()) {
- throw new \LogicException(sprintf('Process must be terminated before calling %s.', $functionName));
- }
- }
- }
|