Socket_set_option을 사용하여 네트워크 안정성을 최적화하기 위해 소켓의 재전송 수를 설정하는 방법은 무엇입니까?

gitbox 2025-08-17
<span><span><span class="hljs-meta">&lt;?php</span></span><span>
</span><span><span class="hljs-comment">// 기사가 시작되기 전에 내용의 일부</span></span><span>
</span><span><span class="hljs-comment">// 기사 주제와 관련이없는 코드 또는 의견</span></span><span>
</span><span><span class="hljs-meta">?&gt;</span></span><span>
----------------------------------------------
</span><span><span class="hljs-meta">&lt;?php</span></span><span>
</span><span><span class="hljs-comment">// 기사가 시작됩니다</span></span><span>

<span class="hljs-comment">/**
 * 사용 방법 socket_set_option 설정 socket 네트워크 안정성을 최적화하기위한 재전송 수
 *
 * 네트워크 프로그래밍에서，socket 매우 일반적인 의사 소통 메커니즘입니다，다른 프로세스 나 장치가 네트워크를 통해 데이터를 교환 할 수 있습니다.。사용 중 socket 네트워크 통신을 수행 할 때，전송 안정성은 중요한 고려 사항입니다，특히 불안정하거나 높은 대기 시간 네트워크 환경에서。네트워크 통신의 신뢰성을 향상시키기 위해，我们可以通过설정 socket 네트워크 안정성을 최적화하기위한 재전송 수。
 *
 * 本文将介绍사용 방법 PHP 사내 `socket_set_option` 函数설정 socket 재전송 수，네트워크 연결 안정성을 향상시킵니다。
 */</span>

 </span><span><span class="hljs-comment">// a TCP socket</span></span><span>
</span><span><span class="hljs-variable">$socket</span></span><span> = </span><span><span class="hljs-title function_ invoke__">socket_create</span></span><span>(AF_INET, SOCK_STREAM, SOL_TCP);
</span><span><span class="hljs-keyword">if</span></span><span> (!</span><span><span class="hljs-variable">$socket</span></span><span>) {
    </span><span><span class="hljs-keyword">echo</span></span><span> </span><span><span class="hljs-string">"만들다 socket 실패하다: "</span></span><span> . </span><span><span class="hljs-title function_ invoke__">socket_strerror</span></span><span>(</span><span><span class="hljs-title function_ invoke__">socket_last_error</span></span><span>()) . </span><span><span class="hljs-string">"\n"</span></span><span>;
    </span><span><span class="hljs-keyword">exit</span></span><span>();
}

</span><span><span class="hljs-comment">// 대상 주소와 포트에 연결하십시오</span></span><span>
</span><span><span class="hljs-variable">$address</span></span><span> = </span><span><span class="hljs-string">'127.0.0.1'</span></span><span>;
</span><span><span class="hljs-variable">$port</span></span><span> = </span><span><span class="hljs-number">12345</span></span><span>;
</span><span><span class="hljs-keyword">if</span></span><span> (!</span><span><span class="hljs-title function_ invoke__">socket_connect</span></span><span>(</span><span><span class="hljs-variable">$socket</span></span><span>, </span><span><span class="hljs-variable">$address</span></span><span>, </span><span><span class="hljs-variable">$port</span></span><span>)) {
    </span><span><span class="hljs-keyword">echo</span></span><span> </span><span><span class="hljs-string">"连接실패하다: "</span></span><span> . </span><span><span class="hljs-title function_ invoke__">socket_strerror</span></span><span>(</span><span><span class="hljs-title function_ invoke__">socket_last_error</span></span><span>()) . </span><span><span class="hljs-string">"\n"</span></span><span>;
    </span><span><span class="hljs-keyword">exit</span></span><span>();
}

</span><span><span class="hljs-comment">// 설정 socket 옵션</span></span><span>
</span><span><span class="hljs-comment">// 这里我们설정 SO_RCVBUF 그리고 SO_RCVBUF 重传次数相关的옵션</span></span><span>
</span><span><span class="hljs-variable">$transmit_retries</span></span><span> = </span><span><span class="hljs-number">5</span></span><span>; </span><span><span class="hljs-comment">// 설정重传次数为 5</span></span><span>

</span><span><span class="hljs-keyword">if</span></span><span> (!</span><span><span class="hljs-title function_ invoke__">socket_set_option</span></span><span>(</span><span><span class="hljs-variable">$socket</span></span><span>, SOL_SOCKET, SO_RCVBUF, </span><span><span class="hljs-number">65536</span></span><span>)) {
    </span><span><span class="hljs-keyword">echo</span></span><span> </span><span><span class="hljs-string">"설정接收缓冲区실패하다: "</span></span><span> . </span><span><span class="hljs-title function_ invoke__">socket_strerror</span></span><span>(</span><span><span class="hljs-title function_ invoke__">socket_last_error</span></span><span>()) . </span><span><span class="hljs-string">"\n"</span></span><span>;
    </span><span><span class="hljs-keyword">exit</span></span><span>();
}

</span><span><span class="hljs-keyword">if</span></span><span> (!</span><span><span class="hljs-title function_ invoke__">socket_set_option</span></span><span>(</span><span><span class="hljs-variable">$socket</span></span><span>, SOL_SOCKET, SO_RCVBUF, </span><span><span class="hljs-variable">$transmit_retries</span></span><span>)) {
    </span><span><span class="hljs-keyword">echo</span></span><span> </span><span><span class="hljs-string">"설정重传次数실패하다: "</span></span><span> . </span><span><span class="hljs-title function_ invoke__">socket_strerror</span></span><span>(</span><span><span class="hljs-title function_ invoke__">socket_last_error</span></span><span>()) . </span><span><span class="hljs-string">"\n"</span></span><span>;
    </span><span><span class="hljs-keyword">exit</span></span><span>();
}

</span><span><span class="hljs-comment">// 데이터를 보냅니다</span></span><span>
</span><span><span class="hljs-variable">$message</span></span><span> = </span><span><span class="hljs-string">"Hello, this is a test message!"</span></span><span>;
</span><span><span class="hljs-title function_ invoke__">socket_write</span></span><span>(</span><span><span class="hljs-variable">$socket</span></span><span>, </span><span><span class="hljs-variable">$message</span></span><span>, </span><span><span class="hljs-title function_ invoke__">strlen</span></span><span>(</span><span><span class="hljs-variable">$message</span></span><span>));

</span><span><span class="hljs-comment">// 폐쇄 socket</span></span><span>
</span><span><span class="hljs-title function_ invoke__">socket_close</span></span><span>(</span><span><span class="hljs-variable">$socket</span></span><span>);

</span><span><span class="hljs-comment">// 기사의 본문 끝</span></span><span>
</span><span><span class="hljs-meta">?&gt;</span></span><span>
----------------------------------------------
</span><span><span class="hljs-meta">&lt;?php</span></span><span>
</span><span><span class="hljs-comment">// 기사가 끝난 후 일부 내용</span></span><span>
</span><span><span class="hljs-comment">// 모든 종료 표시 또는 의견</span></span><span>
</span><span><span class="hljs-meta">?&gt;</span></span><span>
</span></span>
socket_set_option