Was soll ich tun, wenn Proc_terate den Prozess nicht beenden kann? Mögliche Ursachen und Lösungsanalyse

A. Vollständiges Beispiel für Lösungen

 <span><span><span class="hljs-variable">$cmd</span></span><span> = </span><span><span class="hljs-string">'exec sleep 100'</span></span><span>;
</span><span><span class="hljs-variable">$descriptorspec</span></span><span> = [
    </span><span><span class="hljs-number">0</span></span><span> =&gt; [</span><span><span class="hljs-string">"pipe"</span></span><span>, </span><span><span class="hljs-string">"r"</span></span><span>],
    </span><span><span class="hljs-number">1</span></span><span> =&gt; [</span><span><span class="hljs-string">"pipe"</span></span><span>, </span><span><span class="hljs-string">"w"</span></span><span>],
    </span><span><span class="hljs-number">2</span></span><span> =&gt; [</span><span><span class="hljs-string">"pipe"</span></span><span>, </span><span><span class="hljs-string">"w"</span></span><span>]
];

</span><span><span class="hljs-variable">$process</span></span><span> = </span><span><span class="hljs-title function_ invoke__">proc_open</span></span><span>(</span><span><span class="hljs-variable">$cmd</span></span><span>, </span><span><span class="hljs-variable">$descriptorspec</span></span><span>, </span><span><span class="hljs-variable">$pipes</span></span><span>);

</span><span><span class="hljs-keyword">if</span></span><span> (</span><span><span class="hljs-title function_ invoke__">is_resource</span></span><span>(</span><span><span class="hljs-variable">$process</span></span><span>)) {
    </span><span><span class="hljs-title function_ invoke__">sleep</span></span><span>(</span><span><span class="hljs-number">2</span></span><span>); </span><span><span class="hljs-comment">// Simulieren Sie eine gewisse Verarbeitung</span></span><span>
    </span><span><span class="hljs-title function_ invoke__">proc_terminate</span></span><span>(</span><span><span class="hljs-variable">$process</span></span><span>, </span><span><span class="hljs-number">15</span></span><span>); </span><span><span class="hljs-comment">// versuchen SIGTERM</span></span><span>
    </span><span><span class="hljs-title function_ invoke__">sleep</span></span><span>(</span><span><span class="hljs-number">1</span></span><span>);

    </span><span><span class="hljs-variable">$status</span></span><span> = </span><span><span class="hljs-title function_ invoke__">proc_get_status</span></span><span>(</span><span><span class="hljs-variable">$process</span></span><span>);
    </span><span><span class="hljs-keyword">if</span></span><span> (</span><span><span class="hljs-variable">$status</span></span><span>[</span><span><span class="hljs-string">'running'</span></span><span>]) {
        </span><span><span class="hljs-comment">// Wenn es noch läuft，versuchen SIGKILL</span></span><span>
        </span><span><span class="hljs-title function_ invoke__">proc_terminate</span></span><span>(</span><span><span class="hljs-variable">$process</span></span><span>, </span><span><span class="hljs-number">9</span></span><span>);
    }

    </span><span><span class="hljs-title function_ invoke__">proc_close</span></span><span>(</span><span><span class="hljs-variable">$process</span></span><span>); </span><span><span class="hljs-comment">// Ressourcen aufräumen</span></span><span>
}
</span></span>

Iv. Andere machbare Alternativen

• Verwenden Sie Popen () und exec (), um mit externen Kill -Befehlen zusammenzuarbeiten, um Prozesse zu verwalten.

• Verwenden Sie PCNTL_FORK () (CLI -Umgebung), um das Prozessmanagement selbst unter Linux zu implementieren.

• Für komplexe Aufgaben erwägen Sie ein Prozessmanagement -Framework wie Supervisford anstelle von Proc_open () .