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phorge/scripts/daemon/exec/exec_daemon.php
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exec_daemon.php
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#!/usr/bin/env php
<?php
if (function_exists('pcntl_async_signals')) {
pcntl_async_signals(true);
} else {
declare(ticks = 1);
}
require_once dirname(__FILE__).'/../../__init_script__.php';
if (!posix_isatty(STDOUT)) {
$sid = posix_setsid();
if ($sid <= 0) {
throw new Exception(pht('Failed to create new process session!'));
}
}
$args = new PhutilArgumentParser($argv);
$args->setTagline(pht('daemon executor'));
$args->setSynopsis(<<<EOHELP
**exec_daemon.php** [__options__] __daemon__ ...
Run an instance of __daemon__.
EOHELP
);
$args->parse(
array(
array(
'name' => 'trace',
'help' => pht('Enable debug tracing.'),
),
array(
'name' => 'trace-memory',
'help' => pht('Enable debug memory tracing.'),
),
array(
'name' => 'verbose',
'help' => pht('Enable verbose activity logging.'),
),
array(
'name' => 'label',
'short' => 'l',
'param' => 'label',
'help' => pht(
'Optional process label. Makes "%s" nicer, no behavioral effects.',
'ps'),
),
array(
'name' => 'daemon',
'wildcard' => true,
),
));
$trace_memory = $args->getArg('trace-memory');
$trace_mode = $args->getArg('trace') || $trace_memory;
$verbose = $args->getArg('verbose');
if (function_exists('posix_isatty') && posix_isatty(STDIN)) {
fprintf(STDERR, pht('Reading daemon configuration from stdin...')."\n");
}
$config = @file_get_contents('php://stdin');
$config = id(new PhutilJSONParser())->parse($config);
PhutilTypeSpec::checkMap(
$config,
array(
'log' => 'optional string|null',
'argv' => 'optional list<wild>',
'load' => 'optional list<string>',
'down' => 'optional int',
));
$log = idx($config, 'log');
if ($log) {
ini_set('error_log', $log);
PhutilErrorHandler::setErrorListener(array('PhutilDaemon', 'errorListener'));
}
$load = idx($config, 'load', array());
foreach ($load as $library) {
$library = Filesystem::resolvePath($library);
phutil_load_library($library);
}
PhutilErrorHandler::initialize();
$daemon = $args->getArg('daemon');
if (!$daemon) {
throw new PhutilArgumentUsageException(
pht('Specify which class of daemon to start.'));
} else if (count($daemon) > 1) {
throw new PhutilArgumentUsageException(
pht('Specify exactly one daemon to start.'));
} else {
$daemon = head($daemon);
if (!class_exists($daemon)) {
throw new PhutilArgumentUsageException(
pht(
'No class "%s" exists in any known library.',
$daemon));
} else if (!is_subclass_of($daemon, 'PhutilDaemon')) {
throw new PhutilArgumentUsageException(
pht(
'Class "%s" is not a subclass of "%s".',
$daemon,
'PhutilDaemon'));
}
}
$argv = idx($config, 'argv', array());
$daemon = newv($daemon, array($argv));
if ($trace_mode) {
$daemon->setTraceMode();
}
if ($trace_memory) {
$daemon->setTraceMemory();
}
if ($verbose) {
$daemon->setVerbose(true);
}
$down_duration = idx($config, 'down');
if ($down_duration) {
$daemon->setScaledownDuration($down_duration);
}
$daemon->execute();

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