kill 被 "system" 调用吸收并且永远不会触发 pcntl_signal

Question

我有一个守护程序脚本，我试图通过避免线程来保持简单。

当我按 ctrl-c 或 kill pid 时，"system" 调用退出，但不调用 exitFunction。

declare(ticks = 100);

function exitFunction($signo) {
    global $pidFile, $exit;
    unlink($pidFile);
    echo "Daemon is exiting (signal: $signo). Removing pidFile: $pidFile\n";
    $exit = true;
};
//create the signal handler and shutdown function
pcntl_signal(SIGINT, "exitFunction");
pcntl_signal(SIGTERM, "exitFunction");

//create the pid file with our command
file_put_contents($pidFile, posix_getpid());

echo "pid: " . posix_getpid() . "\n";
echo "Time to start!\n";
while(!$exit) {
    echo "running $command...\n";
    system($command, $return);
    echo "done $command\n";
    if($return) {
        echo "didn't find any domains with command, so sleeping for 60...\n";
        sleep(60);
    }
}

Answer 1

您需要将 declare(ticks=1); 添加为脚本的第一行。可以在 here.

中找到关于实际报价的更详细解释。

kill 被 "system" 调用吸收并且永远不会触发 pcntl_signal

kill is absorbed by "system" call and never triggers pcntl_signal

php

pcntl