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David Walker
b09c2f899e
Bug #73783 raises an issue with signal handling when using SIG_IGN. With PHP7.1 ZEND_SIGNALS is defaulted to on, which will for all signals set the handler as zend_signal_handler_defer. This is problematic for syscalls like sleep(), which will only return when the requisite number of seconds have elapsed, or, a non-ignored signal is raised. In this case we want to SIG_IGN SIGCHLD, however, SIG_IGN is only stored in the SIGG(handlers) array, and the actual system level handler is defined. This prevents proper signal ignoring when requeted.
29 lines
533 B
PHP
29 lines
533 B
PHP
--TEST--
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Bug #73783: (SIG_IGN needs to be set to prevent syscals from returning early)
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--SKIPIF--
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<?php
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if (!extension_loaded('pcntl')) die('skip pcntl extension not available');
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elseif (!extension_loaded('posix')) die('skip posix extension not available');
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?>
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--FILE--
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<?php
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pcntl_signal(SIGCHLD, SIG_IGN);
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switch(pcntl_fork()) {
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case 0:
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exit;
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break;
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}
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$before = microtime(true);
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sleep(1);
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if (microtime(true) - $before >= 0.8) {
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echo "working\n";
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} else {
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echo "failed\n";
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}
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?>
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--EXPECTF--
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working
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