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21 lines
377 B
PHP
21 lines
377 B
PHP
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<?php
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if ($argc != 2) {
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echo "usage: sleep <duration>\n";
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exit(1);
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}
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// NOTE: Sleep for the requested duration even if our actual sleep() call is
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// interrupted by a signal.
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$then = microtime(true) + (double)$argv[1];
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while (true) {
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$now = microtime(true);
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if ($now >= $then) {
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break;
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}
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$sleep = max(1, ($then - $now));
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usleep((int)($sleep * 1000000));
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}
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