![\"\"](\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/02\/20260211035748-698bfe3c281fb.gif\")
<\/h2>\n\n
<\/h2>\n\u524d\u8a00<\/p>\n
\u4e00\u3001\u547d\u540d\u7ba1\u9053\u7684\u8bde\u751f：\u89e3\u51b3\u533f\u540d\u7ba1\u9053\u7684\u6838\u5fc3\u75db\u70b9<\/p>\n
1.1 \u533f\u540d\u7ba1\u9053\u7684\u81f4\u547d\u77ed\u677f<\/p>\n
1.2 \u547d\u540d\u7ba1\u9053\u7684\u6838\u5fc3\u8bbe\u8ba1\u601d\u8def<\/p>\n
1.3 \u547d\u540d\u7ba1\u9053\u4e0e\u533f\u540d\u7ba1\u9053\u7684\u6838\u5fc3\u5173\u8054<\/p>\n
\u4e8c\u3001\u547d\u540d\u7ba1\u9053\u7684\u6838\u5fc3\u8ba4\u77e5：\u4ec0\u4e48\u662f FIFO \u6587\u4ef6？<\/p>\n
2.1 FIFO \u6587\u4ef6\u7684\u672c\u8d28<\/p>\n
2.2 FIFO \u6587\u4ef6\u7684\u6807\u8bc6<\/p>\n
2.3 \u547d\u540d\u7ba1\u9053\u7684\u901a\u4fe1\u6a21\u578b<\/p>\n
\u4e09\u3001\u547d\u540d\u7ba1\u9053\u7684\u521b\u5efa：mkfifo () \u51fd\u6570\u4e0e\u547d\u4ee4\u884c<\/p>\n
3.1 \u547d\u4ee4\u884c\u521b\u5efa\u547d\u540d\u7ba1\u9053<\/p>\n
3.2 \u7a0b\u5e8f\u4e2d\u521b\u5efa\u547d\u540d\u7ba1\u9053：mkfifo () \u51fd\u6570<\/p>\n
3.2.1 mkfifo () \u51fd\u6570\u63a5\u53e3<\/p>\n
3.2.2 \u6838\u5fc3\u6ce8\u610f\u70b9<\/p>\n
3.2.3 \u7b80\u5355\u521b\u5efa\u793a\u4f8b<\/p>\n
\u56db\u3001\u547d\u540d\u7ba1\u9053\u7684\u6253\u5f00\u89c4\u5219：\u6700\u5173\u952e\u7684\u6838\u5fc3\u77e5\u8bc6\u70b9<\/p>\n
4.1 open () \u51fd\u6570\u7684\u6838\u5fc3\u53c2\u6570<\/p>\n
4.2 \u4ee5\u8bfb\u65b9\u5f0f\u6253\u5f00\u547d\u540d\u7ba1\u9053（O_RDONLY）<\/p>\n
4.2.1 \u963b\u585e\u6a21\u5f0f（\u9ed8\u8ba4，\u4ec5 O_RDONLY）<\/p>\n
4.2.2 \u975e\u963b\u585e\u6a21\u5f0f（O_RDONLY | O_NONBLOCK）<\/p>\n
4.3 \u4ee5\u5199\u65b9\u5f0f\u6253\u5f00\u547d\u540d\u7ba1\u9053（O_WRONLY）<\/p>\n
4.3.1 \u963b\u585e\u6a21\u5f0f（\u9ed8\u8ba4，\u4ec5 O_WRONLY）<\/p>\n
4.3.2 \u975e\u963b\u585e\u6a21\u5f0f（O_WRONLY | O_NONBLOCK）<\/p>\n
4.4 \u547d\u540d\u7ba1\u9053\u6253\u5f00\u89c4\u5219\u603b\u7ed3<\/p>\n
4.5 \u6253\u5f00\u89c4\u5219\u7684\u672c\u8d28<\/p>\n
\u4e94\u3001\u547d\u540d\u7ba1\u9053\u7684\u8bfb\u5199\u89c4\u5219：\u5b8c\u5168\u590d\u7528\u533f\u540d\u7ba1\u9053<\/p>\n
5.1 \u65e0\u6570\u636e\u53ef\u8bfb\u65f6\u7684\u8bfb\u64cd\u4f5c\u89c4\u5219<\/p>\n
5.2 \u7ba1\u9053\u7f13\u51b2\u533a\u5199\u6ee1\u65f6\u7684\u5199\u64cd\u4f5c\u89c4\u5219<\/p>\n
5.3 \u6240\u6709\u5199\u7aef\u5173\u95ed\u540e\u7684\u8bfb\u64cd\u4f5c\u89c4\u5219<\/p>\n
5.4 \u6240\u6709\u8bfb\u7aef\u5173\u95ed\u540e\u7684\u5199\u64cd\u4f5c\u89c4\u5219<\/p>\n
5.5 \u7ba1\u9053\u5199\u5165\u7684\u539f\u5b50\u6027\u89c4\u5219<\/p>\n
5.6 \u547d\u540d\u7ba1\u9053\u8bfb\u5199\u89c4\u5219\u7684\u6838\u5fc3\u6ce8\u610f\u70b9<\/p>\n
\u516d\u3001\u547d\u540d\u7ba1\u9053\u7684\u5b9e\u6218\u5f00\u53d1：\u4ece\u57fa\u7840\u6848\u4f8b\u5230 Server-Client \u901a\u4fe1<\/p>\n
6.1 \u5b9e\u6218\u6848\u4f8b 1：\u547d\u540d\u7ba1\u9053\u57fa\u7840\u8bfb\u5199<\/p>\n
6.1.1 \u5199\u7aef\u7a0b\u5e8f：fifo_write.c<\/p>\n
6.1.2 \u8bfb\u7aef\u7a0b\u5e8f：fifo_read.c<\/p>\n
6.1.3 \u7f16\u8bd1\u4e0e\u8fd0\u884c<\/p>\n
6.1.4 \u8fd0\u884c\u7ed3\u679c\u5206\u6790<\/p>\n
6.2 \u5b9e\u6218\u6848\u4f8b 2：\u57fa\u4e8e\u547d\u540d\u7ba1\u9053\u5b9e\u73b0\u6587\u4ef6\u62f7\u8d1d<\/p>\n
6.2.1 \u53d1\u9001\u7aef\u7a0b\u5e8f：fifo_copy_send.c<\/p>\n
6.2.2 \u63a5\u6536\u7aef\u7a0b\u5e8f：fifo_copy_recv.c<\/p>\n
6.2.3 \u6d4b\u8bd5\u6b65\u9aa4<\/p>\n
6.2.4 \u6848\u4f8b\u6838\u5fc3\u4eae\u70b9<\/p>\n
6.3 \u5b9e\u6218\u6848\u4f8b 3：\u57fa\u4e8e\u547d\u540d\u7ba1\u9053\u5b9e\u73b0 Server-Client \u901a\u4fe1<\/p>\n
6.3.1 \u670d\u52a1\u7aef\u7a0b\u5e8f：serverPipe.c<\/p>\n
6.3.2 \u5ba2\u6237\u7aef\u7a0b\u5e8f：clientPipe.c<\/p>\n
6.3.3 \u7f16\u8bd1\u4e0e\u8fd0\u884c<\/p>\n
6.3.4 \u6848\u4f8b\u6838\u5fc3\u4eae\u70b9<\/p>\n
\u4e03\u3001\u547d\u540d\u7ba1\u9053\u7684\u6838\u5fc3\u7279\u70b9\u4e0e\u4f7f\u7528\u573a\u666f<\/p>\n
7.1 \u547d\u540d\u7ba1\u9053\u7684\u6838\u5fc3\u7279\u70b9<\/p>\n
7.2 \u547d\u540d\u7ba1\u9053\u7684\u5178\u578b\u4f7f\u7528\u573a\u666f<\/p>\n
7.3 \u547d\u540d\u7ba1\u9053\u7684\u5c40\u9650\u6027<\/p>\n
7.4 \u547d\u540d\u7ba1\u9053\u4e0e\u5176\u4ed6 IPC \u65b9\u5f0f\u7684\u5bf9\u6bd4<\/p>\n
\u516b\u3001\u547d\u540d\u7ba1\u9053\u5f00\u53d1\u7684\u907f\u5751\u6307\u5357<\/p>\n
8.1 \u5751 1：\u672a\u5904\u7406 SIGPIPE \u4fe1\u53f7，\u5bfc\u81f4\u8fdb\u7a0b\u610f\u5916\u9000\u51fa<\/p>\n
8.2 \u5751 2：\u975e\u963b\u585e\u6a21\u5f0f\u4e0b，\u9519\u8bef\u5224\u65ad\u4e0d\u4e25\u8c28<\/p>\n
8.3 \u5751 3：\u591a\u8fdb\u7a0b\u5199\u7ba1\u9053\u65f6，\u6570\u636e\u6df7\u4e71<\/p>\n
8.4 \u5751 4：\u53cc\u5411\u901a\u4fe1\u65f6，\u53ea\u521b\u5efa\u4e00\u4e2a\u7ba1\u9053，\u5bfc\u81f4\u6b7b\u9501<\/p>\n
8.5 \u5751 5：FIFO \u6587\u4ef6\u672a\u5220\u9664，\u5bfc\u81f4\u7a0b\u5e8f\u91cd\u542f\u65f6 mkfifo \u62a5\u9519<\/p>\n
8.6 \u5751 6：\u963b\u585e\u6a21\u5f0f\u4e0b，\u8fdb\u7a0b\u5361\u6b7b，\u65e0\u6cd5\u9000\u51fa<\/p>\n
\u603b\u7ed3<\/p>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u5728 Linux \u8fdb\u7a0b\u95f4\u901a\u4fe1\u7684\u5b66\u4e60\u4e2d，\u533f\u540d\u7ba1\u9053\u4f5c\u4e3a\u5165\u95e8\u7ea7\u7684 IPC \u65b9\u5f0f，\u8ba9\u6211\u4eec\u7406\u89e3\u4e86 \u201c\u5185\u6838\u7f13\u51b2\u533a + \u4e00\u5207\u7686\u6587\u4ef6\u201d \u7684\u8bbe\u8ba1\u601d\u60f3，\u4f46\u5b83\u6709\u4e00\u4e2a\u81f4\u547d\u7684\u9650\u5236 \u2014\u2014\u53ea\u80fd\u7528\u4e8e\u5177\u6709\u4eb2\u7f18\u5173\u7cfb\u7684\u8fdb\u7a0b\u95f4\u901a\u4fe1\u3002\u800c\u547d\u540d\u7ba1\u9053（FIFO）\u4f5c\u4e3a\u533f\u540d\u7ba1\u9053\u7684 \u201c\u5347\u7ea7\u7248\u201d，\u5b8c\u7f8e\u7a81\u7834\u4e86\u8fd9\u4e00\u9650\u5236，\u8ba9\u4efb\u610f\u65e0\u4eb2\u7f18\u5173\u7cfb\u7684\u8fdb\u7a0b\u4e5f\u80fd\u5b9e\u73b0\u9ad8\u6548\u7684\u7ba1\u9053\u901a\u4fe1\u3002<\/p>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u547d\u540d\u7ba1\u9053\u4e5f\u53eb FIFO（First In First Out）<\/span>，\u662f\u4e00\u79cd\u7279\u6b8a\u7684\u7ba1\u9053\u6587\u4ef6，\u5b83\u62e5\u6709\u78c1\u76d8\u7ea7\u7684\u6587\u4ef6\u540d，\u901a\u8fc7\u6587\u4ef6\u7cfb\u7edf\u5b9e\u73b0\u8fdb\u7a0b\u95f4\u7684\u5173\u8054，\u64cd\u4f5c\u63a5\u53e3\u4e0e\u533f\u540d\u7ba1\u9053\u5b8c\u5168\u517c\u5bb9，\u5374\u80fd\u8986\u76d6\u66f4\u5e7f\u6cdb\u7684\u901a\u4fe1\u573a\u666f\u3002\u672c\u6587\u5c06\u4ece\u547d\u540d\u7ba1\u9053\u7684\u6838\u5fc3\u6982\u5ff5\u51fa\u53d1，\u4e00\u6b65\u6b65\u62c6\u89e3\u5176\u539f\u7406\u3001\u521b\u5efa\u65b9\u5f0f\u3001\u6253\u5f00\u89c4\u5219\u3001\u5b9e\u6218\u5e94\u7528，\u7ed3\u5408\u786c\u6838\u4ee3\u7801\u548c\u901a\u4fd7\u8bb2\u89e3，\u8ba9\u4f60\u5f7b\u5e95\u5403\u900f\u547d\u540d\u7ba1\u9053，\u638c\u63e1\u8de8\u8fdb\u7a0b\u901a\u4fe1\u7684\u5173\u952e\u6280\u80fd\u3002\u4e0b\u9762\u5c31\u8ba9\u6211\u4eec\u6b63\u5f0f\u5f00\u59cb\u5427！<\/p>\n \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u5728\u5b66\u4e60\u547d\u540d\u7ba1\u9053\u4e4b\u524d，\u6211\u4eec\u5148\u56de\u987e\u4e00\u4e0b\u533f\u540d\u7ba1\u9053\u7684\u6838\u5fc3\u5c40\u9650\u6027，\u8fd9\u4e5f\u662f\u547d\u540d\u7ba1\u9053\u8bde\u751f\u7684\u6839\u672c\u539f\u56e0\u3002<\/p>\n \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u533f\u540d\u7ba1\u9053\u57fa\u4e8e\u6587\u4ef6\u63cf\u8ff0\u7b26\u7ee7\u627f\u5b9e\u73b0\u901a\u4fe1，\u53ea\u6709\u901a\u8fc7fork()\u521b\u5efa\u7684\u5b50\u8fdb\u7a0b（\u6216\u5144\u5f1f\u8fdb\u7a0b）\u624d\u80fd\u7ee7\u627f\u7236\u8fdb\u7a0b\u7684\u7ba1\u9053\u63cf\u8ff0\u7b26，\u56e0\u6b64\u53ea\u80fd\u7528\u4e8e\u6709\u5171\u540c\u7956\u5148\u7684\u4eb2\u7f18\u8fdb\u7a0b（\u7236 \/ \u5b50\u3001\u5144 \/ \u5f1f）\u3002<\/p>\n \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u4f46\u5728\u5b9e\u9645\u5f00\u53d1\u4e2d，\u6211\u4eec\u66f4\u591a\u7684\u9700\u6c42\u662f\u8ba9\u5b8c\u5168\u72ec\u7acb\u7684\u65e0\u4eb2\u7f18\u8fdb\u7a0b\u901a\u4fe1：\u6bd4\u5982\u4e00\u4e2a\u670d\u52a1\u8fdb\u7a0b\u548c\u4e00\u4e2a\u5ba2\u6237\u7aef\u8fdb\u7a0b\u3001\u4e24\u4e2a\u72ec\u7acb\u542f\u52a8\u7684\u5e94\u7528\u7a0b\u5e8f\u3001\u4e0d\u540c\u7528\u6237\u7684\u8fdb\u7a0b\u4e4b\u95f4，\u6b64\u65f6\u533f\u540d\u7ba1\u9053\u5c31\u5b8c\u5168\u65e0\u6cd5\u6ee1\u8db3\u9700\u6c42\u3002<\/p>\n \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u4e3a\u4e86\u89e3\u51b3\u533f\u540d\u7ba1\u9053\u7684\u4eb2\u7f18\u9650\u5236\u95ee\u9898，Linux \u8bbe\u8ba1\u8005\u5728\u533f\u540d\u7ba1\u9053\u7684\u57fa\u7840\u4e0a，\u589e\u52a0\u4e86\u6587\u4ef6\u7cfb\u7edf\u7684\u6807\u8bc6，\u4e5f\u5c31\u662f\u547d\u540d\u7ba1\u9053\u6587\u4ef6\u3002<\/p>\n \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u547d\u540d\u7ba1\u9053\u7684\u6838\u5fc3\u8bbe\u8ba1\u601d\u8def\u53ef\u4ee5\u603b\u7ed3\u4e3a：\u7ed9\u5185\u6838\u4e2d\u7684\u7ba1\u9053\u7f13\u51b2\u533a，\u5728\u6587\u4ef6\u7cfb\u7edf\u4e2d\u5206\u914d\u4e00\u4e2a\u552f\u4e00\u7684\u6587\u4ef6\u540d，\u4efb\u4f55\u8fdb\u7a0b\u53ea\u8981\u80fd\u8bbf\u95ee\u8fd9\u4e2a\u6587\u4ef6，\u5c31\u80fd\u901a\u8fc7\u5b83\u8fde\u63a5\u5230\u5185\u6838\u4e2d\u7684\u7ba1\u9053\u7f13\u51b2\u533a，\u5b9e\u73b0\u8fdb\u7a0b\u95f4\u901a\u4fe1\u3002<\/p>\n \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u7b80\u5355\u6765\u8bf4，\u533f\u540d\u7ba1\u9053\u662f \u201c\u65e0\u540d\u7684\u5185\u6838\u7f13\u51b2\u533a\u201d，\u53ea\u6709\u4eb2\u7f18\u8fdb\u7a0b\u80fd\u627e\u5230；\u547d\u540d\u7ba1\u9053\u662f \u201c\u6709\u540d\u7684\u5185\u6838\u7f13\u51b2\u533a\u201d，\u4efb\u4f55\u8fdb\u7a0b\u53ea\u8981\u77e5\u9053\u6587\u4ef6\u540d，\u5c31\u80fd\u627e\u5230\u5e76\u4f7f\u7528\u3002<\/p>\n \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u547d\u540d\u7ba1\u9053\u662f\u533f\u540d\u7ba1\u9053\u7684\u8d85\u96c6，\u4e8c\u8005\u7684\u5185\u6838\u5b9e\u73b0\u548c\u64cd\u4f5c\u8bed\u4e49\u5b8c\u5168\u4e00\u81f4：<\/p>\n \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u4e8c\u8005\u7684\u552f\u4e00\u533a\u522b\u4ec5\u5728\u4e8e\u521b\u5efa\u548c\u6253\u5f00\u7684\u65b9\u5f0f：<\/p>\n \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u53ef\u4ee5\u8bf4，\u53ea\u8981\u638c\u63e1\u4e86\u533f\u540d\u7ba1\u9053，\u5b66\u4e60\u547d\u540d\u7ba1\u9053\u53ea\u9700\u8981\u91cd\u70b9\u638c\u63e1\u521b\u5efa\u548c\u6253\u5f00\u8fd9\u4e24\u4e2a\u65b0\u64cd\u4f5c，\u5176\u4f59\u5185\u5bb9\u5b8c\u5168\u53ef\u4ee5\u590d\u7528\u3002<\/p>\n<\/p>\n \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u547d\u540d\u7ba1\u9053\u7684\u6838\u5fc3\u662fFIFO \u6587\u4ef6，\u8fd9\u662f\u4e00\u79cd\u7279\u6b8a\u7684\u6587\u4ef6\u7c7b\u578b，\u4e0e\u666e\u901a\u6587\u4ef6\u3001\u76ee\u5f55\u3001\u8bbe\u5907\u6587\u4ef6\u5e76\u5217，\u5b58\u5728\u4e8e Linux \u7684\u6587\u4ef6\u7cfb\u7edf\u4e2d，\u4f46\u53c8\u6709\u5176\u72ec\u7279\u7684\u5c5e\u6027\u3002<\/p>\n \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0FIFO \u6587\u4ef6\u4ec5\u4f5c\u4e3a\u8fdb\u7a0b\u95f4\u901a\u4fe1\u7684 \u201c\u6807\u8bc6\u201d，\u5b83\u672c\u8eab\u4e0d\u5b58\u50a8\u4efb\u4f55\u6570\u636e，\u6570\u636e\u4f9d\u65e7\u5b58\u50a8\u5728\u5185\u6838\u7684\u7ba1\u9053\u7f13\u51b2\u533a\u4e2d\u3002<\/p>\n \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u5f53\u8fdb\u7a0b\u5bf9 FIFO \u6587\u4ef6\u6267\u884cread()<\/span>\/<\/span>write()<\/span><\/span>\u64cd\u4f5c\u65f6，\u5b9e\u9645\u4e0a\u662f\u5bf9\u5185\u6838\u4e2d\u7684\u7ba1\u9053\u7f13\u51b2\u533a\u8fdb\u884c\u64cd\u4f5c，FIFO \u6587\u4ef6\u53ea\u662f\u4e00\u4e2a 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\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u547d\u540d\u7ba1\u9053\u7684\u901a\u4fe1\u6a21\u578b\u975e\u5e38\u7b80\u5355，\u6838\u5fc3\u5206\u4e3a\u4e09\u6b65：<\/p>\n \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u6574\u4e2a\u8fc7\u7a0b\u4e2d，FIFO \u6587\u4ef6\u5c31\u50cf\u4e00\u4e2a \u201c\u6865\u6881\u201d，\u8fde\u63a5\u4e86\u4e24\u4e2a\u65e0\u4eb2\u7f18\u8fdb\u7a0b\u548c\u5185\u6838\u4e2d\u7684\u7ba1\u9053\u7f13\u51b2\u533a，\u7a81\u7834\u4e86\u533f\u540d\u7ba1\u9053\u7684\u4eb2\u7f18\u9650\u5236\u3002<\/p>\n<\/p>\n \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u547d\u540d\u7ba1\u9053\u6709\u4e24\u79cd\u521b\u5efa\u65b9\u5f0f：\u547d\u4ee4\u884c\u521b\u5efa\u548c\u7a0b\u5e8f\u4e2d\u901a\u8fc7 mkfifo () \u51fd\u6570\u521b\u5efa，\u524d\u8005\u9002\u7528\u4e8e\u6d4b\u8bd5\u548c\u624b\u52a8\u64cd\u4f5c，\u540e\u8005\u9002\u7528\u4e8e\u7a0b\u5e8f\u5f00\u53d1，\u4e8c\u8005\u7684\u6548\u679c\u5b8c\u5168\u4e00\u81f4\u3002<\/p>\n \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u5728 Linux \u7ec8\u7aef\u4e2d，\u76f4\u63a5\u4f7f\u7528mkfifo<\/span><\/span>\u547d\u4ee4\u5373\u53ef\u521b\u5efa\u547d\u540d\u7ba1\u9053，\u8bed\u6cd5\u5982\u4e0b：<\/p>\n # mkfifo [\u9009\u9879] \u7ba1\u9053\u6587\u4ef6\u540d \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u5e38\u7528\u9009\u9879：<\/p>\n \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u521b\u5efa\u540e，\u901a\u8fc7ls -l<\/span><\/span>\u5373\u53ef\u770b\u5230\u6807\u8bc6\u4e3ap\u7684 FIFO \u6587\u4ef6，\u901a\u8fc7rm \u7ba1\u9053\u6587\u4ef6\u540d<\/span><\/span>\u5373\u53ef\u5220\u9664\u8be5\u6587\u4ef6\u3002<\/p>\n \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u5728 C\/C++ \u7a0b\u5e8f\u4e2d，\u901a\u8fc7mkfifo()<\/span><\/span>\u51fd\u6570\u521b\u5efa\u547d\u540d\u7ba1\u9053，\u8fd9\u662f\u5f00\u53d1\u4e2d\u7684\u4e3b\u6d41\u65b9\u5f0f，\u51fd\u6570\u539f\u578b\u5b9a\u4e49\u5728<sys\/stat.h><\/span>\u5934\u6587\u4ef6\u4e2d\u3002<\/p>\n #include <sys\/types.h> \/\/ \u529f\u80fd：\u521b\u5efa\u4e00\u4e2a\u547d\u540d\u7ba1\u9053（FIFO\u6587\u4ef6） #include <sys\/types.h> int main() \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u7f16\u8bd1\u8fd0\u884c\u8be5\u7a0b\u5e8f\u540e，\u5728\u5f53\u524d\u76ee\u5f55\u4e0b\u6267\u884cls –<\/span><\/span>l，\u5c31\u80fd\u770b\u5230prw-r–r–\u7684 FIFO \u6587\u4ef6mypipe\u3002<\/p>\n<\/p>\n \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u547d\u540d\u7ba1\u9053\u7684\u6253\u5f00\u89c4\u5219\u662f\u5b66\u4e60\u7684\u91cd\u4e2d\u4e4b\u91cd，\u4e5f\u662f\u4e0e\u666e\u901a\u6587\u4ef6\u6253\u5f00\u7684\u6700\u5927\u533a\u522b，\u76f4\u63a5\u51b3\u5b9a\u4e86\u8fdb\u7a0b\u7684\u8fd0\u884c\u884c\u4e3a（\u963b\u585e \/ \u975e\u963b\u585e）\u3002<\/p>\n 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\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u547d\u540d\u7ba1\u9053\u901a\u8fc7\u6807\u51c6\u7684open()<\/span><\/span>\u51fd\u6570\u6253\u5f00，\u51fd\u6570\u539f\u578b\u5982\u4e0b：<\/p>\n #include <fcntl.h> int open(const char *pathname, int flags, mode_t mode);<\/p>\n \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u5bf9\u4e8e\u547d\u540d\u7ba1\u9053，\u6838\u5fc3\u5173\u6ce8flags\u53c2\u6570，\u5e38\u7528\u53d6\u503c：<\/p>\n \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u5982\u679c\u8fdb\u7a0b\u4ee5\u7eaf\u8bfb\u65b9\u5f0f\u6253\u5f00\u547d\u540d\u7ba1\u9053，\u4e14\u6b64\u65f6\u6ca1\u6709\u4efb\u4f55\u8fdb\u7a0b\u4ee5\u5199\u65b9\u5f0f\u6253\u5f00\u8be5\u7ba1\u9053，\u5219open()<\/span><\/span>\u8c03\u7528\u4f1a\u963b\u585e，\u76f4\u5230\u6709\u8fdb\u7a0b\u4ee5\u5199\u65b9\u5f0f\u6253\u5f00\u8be5\u7ba1\u9053，\u624d\u4f1a\u8fd4\u56de\u6587\u4ef6\u63cf\u8ff0\u7b26\u3002<\/p>\n 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1，errno\u8bbe\u7f6e\u4e3aENXIO\u3002<\/p>\n \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u4e3a\u4e86\u65b9\u4fbf\u8bb0\u5fc6，\u6211\u4eec\u5c06\u547d\u540d\u7ba1\u9053\u7684\u6253\u5f00\u89c4\u5219\u6574\u7406\u6210\u8868\u683c，\u6838\u5fc3\u8bb0\u4f4f\u963b\u585e\u6a21\u5f0f\u4e0b，\u8bfb \/ \u5199\u7aef\u76f8\u4e92\u7b49\u5f85；\u975e\u963b\u585e\u6a21\u5f0f\u4e0b，\u8bfb\u7aef\u4e00\u5b9a\u6210\u529f，\u5199\u7aef\u53ef\u80fd\u5931\u8d25：<\/p>\n \u6838\u5fc3\u53e3\u8bc0：\u5835\u8bfb\u7b49\u5199，\u5835\u5199\u7b49\u8bfb；\u975e\u5835\u8bfb\u5fc5\u6210，\u975e\u5835\u5199\u770b\u7aef\u3002<\/p>\n \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u547d\u540d\u7ba1\u9053\u7684\u6253\u5f00\u89c4\u5219，\u672c\u8d28\u662f\u4e3a\u4e86\u4fdd\u8bc1\u7ba1\u9053\u7684\u901a\u4fe1\u53cc\u65b9\u90fd\u5b58\u5728，\u907f\u514d\u51fa\u73b0 \u201c\u4e00\u4e2a\u8fdb\u7a0b\u5411\u7ba1\u9053\u5199\u5165\u6570\u636e，\u4f46\u6ca1\u6709\u8fdb\u7a0b\u8bfb\u53d6\u201d \u6216 \u201c\u4e00\u4e2a\u8fdb\u7a0b\u4ece\u7ba1\u9053\u8bfb\u53d6\u6570\u636e，\u4f46\u6ca1\u6709\u8fdb\u7a0b\u5199\u5165\u201d \u7684\u65e0\u6548\u64cd\u4f5c，\u662f\u5185\u6838\u5bf9\u7ba1\u9053\u901a\u4fe1\u7684\u57fa\u7840\u4fdd\u969c\u3002<\/p>\n \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u800c\u975e\u963b\u585e\u6a21\u5f0f\u5219\u4e3a\u7a0b\u5e8f\u5f00\u53d1\u63d0\u4f9b\u4e86\u7075\u6d3b\u6027，\u8ba9\u8fdb\u7a0b\u53ef\u4ee5\u4e0d\u7b49\u5f85\u53e6\u4e00\u7aef，\u76f4\u63a5\u6267\u884c\u540e\u7eed\u903b\u8f91，\u9002\u7528\u4e8e\u9700\u8981\u8f6e\u8be2\u6216\u5904\u7406\u591a\u4efb\u52a1\u7684\u573a\u666f\u3002<\/p>\n<\/p>\n \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u547d\u540d\u7ba1\u9053\u7684\u8bfb\u5199\u89c4\u5219\u4e0e\u533f\u540d\u7ba1\u9053\u5b8c\u5168\u4e00\u81f4，\u56e0\u4e3a\u4e8c\u8005\u7684\u5e95\u5c42\u90fd\u662f\u5185\u6838\u7ef4\u62a4\u7684\u5b57\u8282\u6d41\u7f13\u51b2\u533a，\u64cd\u4f5c\u8bed\u4e49\u5b8c\u5168\u76f8\u540c\u3002\u8fd9\u91cc\u6211\u4eec\u5bf9\u6838\u5fc3\u8bfb\u5199\u89c4\u5219\u8fdb\u884c\u91cd\u70b9\u56de\u987e，\u7ed3\u5408\u547d\u540d\u7ba1\u9053\u7684\u573a\u666f\u505a\u7b80\u5355\u8bf4\u660e，\u8ba9\u4f60\u65e0\u7f1d\u590d\u7528\u77e5\u8bc6\u3002<\/p>\n \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u547d\u540d\u7ba1\u9053\u7684\u8bfb\u5199\u89c4\u5219\u540c\u6837\u4e0e\u662f\u5426\u8bbe\u7f6e\u975e\u963b\u585e\u6a21\u5f0f（O_NONBLOCK）\u5bc6\u5207\u76f8\u5173，\u540c\u65f6\u6d89\u53ca\u539f\u5b50\u5199\u5165\u3001SIGPIPE \u4fe1\u53f7\u7b49\u5173\u952e\u7279\u6027，\u662f\u5f00\u53d1\u4e2d\u5fc5\u987b\u9075\u5b88\u7684\u89c4\u5219，\u4e5f\u662f\u9762\u8bd5\u9ad8\u9891\u8003\u70b9\u3002<\/p>\n \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0Linux \u5185\u6838\u4e2d\u7ba1\u9053\u7f13\u51b2\u533a\u7684\u9ed8\u8ba4\u5927\u5c0f\u4e3a4096 \u5b57\u8282（1 \u9875），\u53ef\u4ee5\u901a\u8fc7ulimit -p<\/span><\/span>\u547d\u4ee4\u67e5\u770b\u3002\u5f53\u7ba1\u9053\u7f13\u51b2\u533a\u88ab\u5199\u6ee1\u65f6：<\/p>\n \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u5982\u679c\u6240\u6709\u6301\u6709\u7ba1\u9053\u5199\u7aef\u6587\u4ef6\u63cf\u8ff0\u7b26\u7684\u8fdb\u7a0b\u90fd\u5173\u95ed\u4e86\u5199\u7aef，\u6b64\u65f6\u7ba1\u9053\u4e2d\u5269\u4f59\u7684\u6570\u636e\u53ef\u4ee5\u6b63\u5e38\u8bfb\u53d6；\u5f53\u6570\u636e\u8bfb\u53d6\u5b8c\u6bd5\u540e，\u518d\u6b21\u8c03\u7528read()<\/span><\/span>\u4f1a\u8fd4\u56de 0，\u4e0e\u8bfb\u53d6\u666e\u901a\u6587\u4ef6\u5230\u672b\u5c3e\u7684\u884c\u4e3a\u4e00\u81f4，\u8868\u793a \u201c\u7ba1\u9053\u5df2\u65e0\u6570\u636e，\u4e14\u4e0d\u4f1a\u518d\u6709\u65b0\u6570\u636e\u5199\u5165\u201d\u3002<\/p>\n \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u8fd9\u662f\u547d\u540d\u7ba1\u9053\u901a\u4fe1\u4e2d，\u8bfb\u7aef\u5224\u65ad\u5199\u7aef\u9000\u51fa\u7684\u6838\u5fc3\u65b9\u5f0f，\u4e5f\u662f\u5b9e\u73b0\u901a\u4fe1\u7ed3\u675f\u7684\u5173\u952e\u3002<\/p>\n \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u5982\u679c\u6240\u6709\u6301\u6709\u7ba1\u9053\u8bfb\u7aef\u6587\u4ef6\u63cf\u8ff0\u7b26\u7684\u8fdb\u7a0b\u90fd\u5173\u95ed\u4e86\u8bfb\u7aef，\u6b64\u65f6\u8fdb\u7a0b\u5411\u7ba1\u9053\u5199\u7aef\u5199\u5165\u6570\u636e\u65f6，\u5185\u6838\u4f1a\u5411\u8be5\u8fdb\u7a0b\u53d1\u9001SIGPIPE \u4fe1\u53f7，\u8be5\u4fe1\u53f7\u7684\u9ed8\u8ba4\u5904\u7406\u65b9\u5f0f\u662f\u7ec8\u6b62\u8fdb\u7a0b\u3002<\/p>\n \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u8fd9\u662f\u4e00\u4e2a\u975e\u5e38\u91cd\u8981\u7684 \u201c\u5751\u201d，\u5728\u547d\u540d\u7ba1\u9053\u5f00\u53d1\u4e2d，\u5982\u679c\u672a\u5904\u7406 SIGPIPE \u4fe1\u53f7，\u53ef\u80fd\u5bfc\u81f4\u8fdb\u7a0b\u610f\u5916\u9000\u51fa\u3002\u56e0\u6b64，\u5b9e\u9645\u5f00\u53d1\u4e2d\u9700\u8981\u901a\u8fc7signal()<\/span><\/span>\u6216sigaction()<\/span><\/span>\u51fd\u6570\u6355\u83b7\u5e76\u5904\u7406 SIGPIPE <\/span>\u4fe1\u53f7（\u5982\u5ffd\u7565\u8be5\u4fe1\u53f7）\u3002<\/p>\n \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0Linux \u5185\u6838\u4fdd\u8bc1\u4e86\u547d\u540d\u7ba1\u9053\u5199\u5165\u7684\u539f\u5b50\u6027，\u89c4\u5219\u4e0e\u533f\u540d\u7ba1\u9053\u4e00\u81f4：<\/p>\n \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0PIPE_BUF\u7684\u53d6\u503c\u53ef\u4ee5\u901a\u8fc7<limits.h><\/span>\u5934\u6587\u4ef6\u67e5\u770b，\u4e5f\u53ef\u4ee5\u901a\u8fc7\u547d\u4ee4getconf PIPE_BUF<\/span><\/span>\u83b7\u53d6，\u4e0d\u540c\u7cfb\u7edf\u7684\u53d6\u503c\u53ef\u80fd\u4e0d\u540c，\u4f46\u81f3\u5c11\u4e3a 512 \u5b57\u8282\u3002<\/p>\n \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u547d\u540d\u7ba1\u9053\u7684\u8bfb\u5199\u64cd\u4f5c\u5b8c\u5168\u9075\u5faa\u6587\u4ef6\u7684\u64cd\u4f5c\u8bed\u4e49，\u4f46\u53c8\u6709\u7ba1\u9053\u7684\u7279\u6b8a\u5c5e\u6027，\u6838\u5fc3\u6ce8\u610f\u70b9：<\/p>\n \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u7406\u8bba\u5b66\u4e60\u540e，\u6700\u5173\u952e\u7684\u662f\u5b9e\u6218\u3002\u672c\u8282\u6211\u4eec\u901a\u8fc7\u4e09\u4e2a\u7ecf\u5178\u7684\u5b9e\u6218\u6848\u4f8b，\u4ece\u7b80\u5355\u5230\u590d\u6742，\u4e00\u6b65\u6b65\u5b9e\u73b0\u547d\u540d\u7ba1\u9053\u7684\u5f00\u53d1，\u5206\u522b\u662f：\u57fa\u7840\u8bfb\u5199\u6848\u4f8b\u3001\u6587\u4ef6\u62f7\u8d1d\u6848\u4f8b\u3001Server-Client \u901a\u4fe1\u6848\u4f8b，\u8986\u76d6\u547d\u540d\u7ba1\u9053\u7684\u6838\u5fc3\u4f7f\u7528\u573a\u666f\u3002<\/p>\n \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u9700\u6c42：\u521b\u5efa\u4e24\u4e2a\u72ec\u7acb\u7684\u7a0b\u5e8f，fifo_write.c（\u5199\u7aef）\u548cfifo_read.c（\u8bfb\u7aef），\u5b9e\u73b0\u5199\u7aef\u5411\u547d\u540d\u7ba1\u9053\u5199\u5165\u5b57\u7b26\u4e32，\u8bfb\u7aef\u4ece\u547d\u540d\u7ba1\u9053\u8bfb\u53d6\u5e76\u6253\u5370，\u9a8c\u8bc1\u547d\u540d\u7ba1\u9053\u7684\u57fa\u672c\u901a\u4fe1\u529f\u80fd\u3002<\/p>\n #include <stdio.h> \/\/ \u9519\u8bef\u5904\u7406\u5b8f \/\/ \u547d\u540d\u7ba1\u9053\u6587\u4ef6\u540d int main() \/\/ 2. \u4ee5\u963b\u585e\u5199\u65b9\u5f0f\u6253\u5f00\u547d\u540d\u7ba1\u9053（\u9ed8\u8ba4O_WRONLY，\u4f1a\u963b\u585e\u7b49\u5f85\u8bfb\u7aef\u6253\u5f00） \/\/ 3. \u5411\u7ba1\u9053\u5199\u5165\u6570\u636e \/\/ 4. \u5173\u95ed\u6587\u4ef6\u63cf\u8ff0\u7b26 #include <stdio.h> \/\/ \u9519\u8bef\u5904\u7406\u5b8f \/\/ \u547d\u540d\u7ba1\u9053\u6587\u4ef6\u540d，\u4e0e\u5199\u7aef\u4fdd\u6301\u4e00\u81f4 int main() \/\/ 2. \u4ece\u7ba1\u9053\u8bfb\u53d6\u6570\u636e \/\/ 3. \u5173\u95ed\u6587\u4ef6\u63cf\u8ff0\u7b26 \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u9700\u6c42：\u521b\u5efa\u4e24\u4e2a\u7a0b\u5e8f，fifo_copy_send.c（\u53d1\u9001\u7aef）\u548cfifo_copy_recv.c（\u63a5\u6536\u7aef），\u5b9e\u73b0\u53d1\u9001\u7aef\u8bfb\u53d6\u672c\u5730\u6587\u4ef6，\u901a\u8fc7\u547d\u540d\u7ba1\u9053\u53d1\u9001\u7ed9\u63a5\u6536\u7aef，\u63a5\u6536\u7aef\u5c06\u6570\u636e\u5199\u5165\u65b0\u6587\u4ef6，\u5b8c\u6210\u6587\u4ef6\u62f7\u8d1d，\u9a8c\u8bc1\u547d\u540d\u7ba1\u9053\u7684\u5927\u6570\u636e\u4f20\u8f93\u80fd\u529b\u3002<\/p>\n #include <stdio.h> #define ERR_EXIT(m) \\\\ #define FIFO_NAME ".\/copy_fifo" int main() \/\/ 2. \u6253\u5f00\u6e90\u6587\u4ef6\u548c\u547d\u540d\u7ba1\u9053 \/\/ 3. \u8bfb\u53d6\u6e90\u6587\u4ef6，\u5199\u5165\u547d\u540d\u7ba1\u9053 \/\/ 4. \u5173\u95ed\u6587\u4ef6\u63cf\u8ff0\u7b26 #include <stdio.h> #define ERR_EXIT(m) \\\\ #define FIFO_NAME ".\/copy_fifo" int main() \/\/ 2. \u4ece\u547d\u540d\u7ba1\u9053\u8bfb\u53d6\u6570\u636e，\u5199\u5165\u76ee\u6807\u6587\u4ef6 \/\/ 3. \u5173\u95ed\u6587\u4ef6\u63cf\u8ff0\u7b26 \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u9700\u6c42：\u5b9e\u73b0\u4e00\u4e2a\u7b80\u5355\u7684\u670d\u52a1\u7aef（Server）- \u5ba2\u6237\u7aef（Client）<\/span>\u901a\u4fe1\u6a21\u578b，\u670d\u52a1\u7aef\u6301\u7eed\u76d1\u542c\u547d\u540d\u7ba1\u9053，\u5ba2\u6237\u7aef\u5411\u670d\u52a1\u7aef\u53d1\u9001\u6d88\u606f，\u670d\u52a1\u7aef\u5b9e\u65f6\u6253\u5370\u5ba2\u6237\u7aef\u53d1\u9001\u7684\u5185\u5bb9，\u652f\u6301\u5ba2\u6237\u7aef\u9000\u51fa\u540e\u670d\u52a1\u7aef\u7ee7\u7eed\u7b49\u5f85\u65b0\u7684\u5ba2\u6237\u7aef\u8fde\u63a5，\u8fd9\u662f\u547d\u540d\u7ba1\u9053\u5728\u5b9e\u9645\u5f00\u53d1\u4e2d\u7684\u5178\u578b\u5e94\u7528\u573a\u666f\u3002<\/p>\n #include <stdio.h> #define ERR_EXIT(m) \\\\ #define FIFO_NAME ".\/server_fifo"<\/p>\n int main() while (1) char buf[1024] = {0}; \/\/ \u5b9e\u9645\u4e0d\u4f1a\u6267\u884c\u5230\u8fd9\u91cc，\u670d\u52a1\u7aef\u6301\u7eed\u8fd0\u884c #include <stdio.h> #define ERR_EXIT(m) \\\\ #define FIFO_NAME ".\/server_fifo"<\/p>\n int main() \/\/ 2. \u5411\u670d\u52a1\u7aef\u53d1\u9001\u6d88\u606f \/\/ 3. \u5173\u95ed\u5199\u7aef serverPipe:serverPipe.c .PHONY:clean \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u7ed3\u5408\u524d\u9762\u7684\u539f\u7406\u548c\u5b9e\u6218，\u6211\u4eec\u603b\u7ed3\u547d\u540d\u7ba1\u9053\u7684\u6838\u5fc3\u7279\u70b9，\u5e76\u68b3\u7406\u5176\u5178\u578b\u7684\u4f7f\u7528\u573a\u666f，\u5e2e\u52a9\u4f60\u5728\u5b9e\u9645\u5f00\u53d1\u4e2d\u5feb\u901f\u5224\u65ad\u662f\u5426\u9002\u5408\u4f7f\u7528\u547d\u540d\u7ba1\u9053\u3002<\/p>\n \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u547d\u540d\u7ba1\u9053\u9002\u7528\u4e8e\u7b80\u5355\u3001\u4f4e\u5e76\u53d1\u3001\u5355\u5411 \/ \u53cc\u5411\u5b57\u8282\u6d41\u901a\u4fe1\u7684\u573a\u666f，\u5c24\u5176\u662f\u9700\u8981\u5728\u65e0\u4eb2\u7f18\u8fdb\u7a0b\u95f4\u4f20\u9012\u6570\u636e\u7684\u573a\u666f，\u5178\u578b\u5e94\u7528\u5305\u62ec：<\/p>\n \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u547d\u540d\u7ba1\u9053\u5e76\u975e\u4e07\u80fd\u7684，\u4e5f\u5b58\u5728\u4e00\u4e9b\u5c40\u9650\u6027，\u5728\u9ad8\u5e76\u53d1\u3001\u9ad8\u8981\u6c42\u7684\u901a\u4fe1\u573a\u666f\u4e2d，\u9700\u8981\u9009\u62e9\u5176\u4ed6 IPC \u65b9\u5f0f：<\/p>\n \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u4e3a\u4e86\u65b9\u4fbf\u5728\u5b9e\u9645\u5f00\u53d1\u4e2d\u9009\u62e9\u5408\u9002\u7684 IPC \u65b9\u5f0f，\u6211\u4eec\u5c06\u547d\u540d\u7ba1\u9053\u4e0e\u5e38\u89c1\u7684 IPC \u65b9\u5f0f（\u533f\u540d\u7ba1\u9053\u3001\u5171\u4eab\u5185\u5b58\u3001\u6d88\u606f\u961f\u5217\u3001Socket）\u8fdb\u884c\u6838\u5fc3\u5bf9\u6bd4：<\/p>\n \u9009\u62e9\u5efa\u8bae：<\/p>\n \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u5728\u547d\u540d\u7ba1\u9053\u7684\u5b9e\u9645\u5f00\u53d1\u4e2d，\u65b0\u624b\u5f88\u5bb9\u6613\u8e29\u5751，\u5bfc\u81f4\u7a0b\u5e8f\u51fa\u73b0\u963b\u585e\u3001\u5d29\u6e83\u3001\u6570\u636e\u4e22\u5931\u7b49\u95ee\u9898\u3002\u672c\u8282\u68b3\u7406\u5f00\u53d1\u4e2d\u6700\u5e38\u89c1\u7684\u5751，\u5e76\u7ed9\u51fa\u5bf9\u5e94\u7684\u89e3\u51b3\u65b9\u6848，\u5e2e\u52a9\u4f60\u907f\u5f00\u9677\u9631，\u5199\u51fa\u5065\u58ee\u7684\u4ee3\u7801\u3002<\/p>\n \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u95ee\u9898：\u6240\u6709\u8bfb\u7aef\u5173\u95ed\u540e，\u5199\u7aef\u7ee7\u7eed\u5199\u5165\u6570\u636e，\u5185\u6838\u4f1a\u53d1\u9001 SIGPIPE \u4fe1\u53f7，\u9ed8\u8ba4\u5904\u7406\u65b9\u5f0f\u662f\u7ec8\u6b62\u8fdb\u7a0b，\u5bfc\u81f4\u7a0b\u5e8f\u610f\u5916\u9000\u51fa\u3002<\/p>\n \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u89e3\u51b3\u65b9\u6848：\u5728\u5199\u7aef\u7a0b\u5e8f\u4e2d，\u6355\u83b7\u5e76\u5ffd\u7565 SIGPIPE \u4fe1\u53f7：<\/p>\n #include <signal.h> \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u95ee\u9898：\u975e\u963b\u585e\u6a21\u5f0f\u4e0b，read()\/write()\u8fd4\u56de – 1 \u65f6，\u76f4\u63a5\u8ba4\u4e3a\u662f\u7a0b\u5e8f\u9519\u8bef，\u5b9e\u9645\u4e0a\u53ef\u80fd\u662fEAGAIN（\u8d44\u6e90\u6682\u65f6\u4e0d\u53ef\u7528），\u5c5e\u4e8e\u6b63\u5e38\u60c5\u51b5\u3002<\/p>\n \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u89e3\u51b3\u65b9\u6848：\u5224\u65ad\u8fd4\u56de\u503c\u4e3a – 1 \u65f6，\u7ed3\u5408errno\u8fdb\u884c\u5224\u65ad，\u5ffd\u7565EAGAIN：<\/p>\n ssize_t s = read(rfd, buf, sizeof(buf)); \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u95ee\u9898：\u591a\u4e2a\u8fdb\u7a0b\u540c\u65f6\u5411\u547d\u540d\u7ba1\u9053\u5199\u5165\u6570\u636e，\u4e14\u5199\u5165\u7684\u6570\u636e\u91cf\u5927\u4e8e PIPE_BUF，\u5bfc\u81f4\u6570\u636e\u4ea4\u9519，\u51fa\u73b0\u6df7\u4e71\u3002<\/p>\n \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u89e3\u51b3\u65b9\u6848：\u4fdd\u8bc1\u6bcf\u4e2a\u8fdb\u7a0b\u7684\u5199\u5165\u6570\u636e\u91cf\u4e0d\u5927\u4e8e PIPE_BUF，\u5229\u7528\u539f\u5b50\u5199\u5165\u7279\u6027，\u907f\u514d\u6570\u636e\u4ea4\u9519；\u5982\u679c\u9700\u8981\u5199\u5165\u5927\u6570\u636e，\u53ef\u5c06\u6570\u636e\u62c6\u5206\u4e3a\u591a\u4e2a PIPE_BUF \u5927\u5c0f\u7684\u5757，\u4f9d\u6b21\u5199\u5165\u3002<\/p>\n \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u95ee\u9898：\u5b9e\u73b0\u53cc\u5411\u901a\u4fe1\u65f6，\u53ea\u521b\u5efa\u4e00\u4e2a\u547d\u540d\u7ba1\u9053，\u4e24\u4e2a\u8fdb\u7a0b\u540c\u65f6\u4ee5\u8bfb + \u5199\u65b9\u5f0f\u6253\u5f00，\u5bfc\u81f4\u53cc\u65b9\u76f8\u4e92\u963b\u585e，\u51fa\u73b0\u6b7b\u9501\u3002<\/p>\n \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u89e3\u51b3\u65b9\u6848：\u53cc\u5411\u901a\u4fe1\u5fc5\u987b\u521b\u5efa\u4e24\u4e2a\u547d\u540d\u7ba1\u9053，\u5206\u522b\u8d1f\u8d23 A\u2192B \u548c B\u2192A \u7684\u6570\u636e\u6d41，\u6bcf\u4e2a\u8fdb\u7a0b\u5bf9\u4e00\u4e2a\u7ba1\u9053\u8bfb，\u5bf9\u53e6\u4e00\u4e2a\u7ba1\u9053\u5199\u3002<\/p>\n \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u95ee\u9898：\u7a0b\u5e8f\u9000\u51fa\u540e，\u672a\u5220\u9664 FIFO \u6587\u4ef6，\u518d\u6b21\u542f\u52a8\u7a0b\u5e8f\u65f6，mkfifo()\u4f1a\u56e0\u6587\u4ef6\u5df2\u5b58\u5728\u800c\u62a5\u9519（errno=EEXIST）\u3002<\/p>\n \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u89e3\u51b3\u65b9\u6848：<\/p>\n \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u95ee\u9898：\u963b\u585e\u6a21\u5f0f\u4e0b，\u8fdb\u7a0b\u6253\u5f00\u7ba1\u9053\u540e，\u53e6\u4e00\u7aef\u4e00\u76f4\u672a\u6253\u5f00，\u5bfc\u81f4\u8fdb\u7a0b\u5361\u6b7b\u5728open()\u8c03\u7528，\u65e0\u6cd5\u9000\u51fa\u3002 \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u89e3\u51b3\u65b9\u6848：<\/p>\n \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u547d\u540d\u7ba1\u9053\u7684\u5b66\u4e60，\u4e0d\u4ec5\u8ba9\u6211\u4eec\u638c\u63e1\u4e86\u4e00\u79cd\u5b9e\u7528\u7684 IPC \u65b9\u5f0f，\u66f4\u8ba9\u6211\u4eec\u52a0\u6df1\u4e86\u5bf9 Linux \u201c\u4e00\u5207\u7686\u6587\u4ef6\u201d \u8bbe\u8ba1\u601d\u60f3\u7684\u7406\u89e3\u3002\u5728\u5b9e\u9645\u5f00\u53d1\u4e2d，\u547d\u540d\u7ba1\u9053\u867d\u7136\u4e0d\u5982 Socket \u529f\u80fd\u5f3a\u5927，\u4e0d\u5982\u5171\u4eab\u5185\u5b58\u901f\u5ea6\u5feb，\u4f46\u5b83\u4ee5\u8f7b\u91cf\u3001\u7b80\u5355\u3001\u6613\u7528\u7684\u7279\u70b9，\u5728\u672c\u5730\u8de8\u8fdb\u7a0b\u901a\u4fe1\u7684\u573a\u666f\u4e2d\u5360\u636e\u7740\u91cd\u8981\u7684\u4f4d\u7f6e\u3002<\/p>\n \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u5f53\u7136，\u547d\u540d\u7ba1\u9053\u4e5f\u53ea\u662f Linux IPC \u5bb6\u65cf\u7684\u4e00\u5458，\u540e\u7eed\u8fd8\u53ef\u4ee5\u7ee7\u7eed\u5b66\u4e60\u5171\u4eab\u5185\u5b58（\u6700\u5feb\u7684 IPC）\u3001\u6d88\u606f\u961f\u5217（\u6709\u6d88\u606f\u8fb9\u754c\u7684\u901a\u4fe1）\u3001Socket（\u8de8\u4e3b\u673a\u901a\u4fe1）\u7b49\u65b9\u5f0f，\u6784\u5efa\u5b8c\u6574\u7684 Linux \u8fdb\u7a0b\u95f4\u901a\u4fe1\u77e5\u8bc6\u4f53\u7cfb\u3002\u4f46\u65e0\u8bba\u5b66\u4e60\u54ea\u79cd IPC \u65b9\u5f0f，\u547d\u540d\u7ba1\u9053\u7684\u57fa\u7840\u77e5\u8bc6\u548c\u8bbe\u8ba1\u601d\u60f3，\u90fd\u662f\u91cd\u8981\u7684\u94fa\u57ab\u3002<\/p>\n \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u5e0c\u671b\u672c\u6587\u80fd\u5e2e\u52a9\u4f60\u5f7b\u5e95\u5403\u900f\u547d\u540d\u7ba1\u9053，\u5728\u5b9e\u9645\u5f00\u53d1\u4e2d\u7075\u6d3b\u8fd0\u7528，\u5b9e\u73b0\u9ad8\u6548\u7684\u8fdb\u7a0b\u95f4\u901a\u4fe1！<\/p>\n","protected":false},"excerpt":{"rendered":" \u76ee\u5f55![\"\"](\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/02\/20260211035748-698bfe3cbdb86.png\")
<\/p>\n
\n\u4e00\u3001\u547d\u540d\u7ba1\u9053\u7684\u8bde\u751f：\u89e3\u51b3\u533f\u540d\u7ba1\u9053\u7684\u6838\u5fc3\u75db\u70b9<\/h2>\n
1.1 \u533f\u540d\u7ba1\u9053\u7684\u81f4\u547d\u77ed\u677f<\/h3>\n
1.2 \u547d\u540d\u7ba1\u9053\u7684\u6838\u5fc3\u8bbe\u8ba1\u601d\u8def<\/h3>\n
1.3 \u547d\u540d\u7ba1\u9053\u4e0e\u533f\u540d\u7ba1\u9053\u7684\u6838\u5fc3\u5173\u8054<\/h3>\n
\n
\n
\u4e8c\u3001\u547d\u540d\u7ba1\u9053\u7684\u6838\u5fc3\u8ba4\u77e5：\u4ec0\u4e48\u662f FIFO \u6587\u4ef6？<\/h2>\n
2.1 FIFO \u6587\u4ef6\u7684\u672c\u8d28<\/h3>\n
2.2 FIFO \u6587\u4ef6\u7684\u6807\u8bc6<\/h3>\n
\n
2.3 \u547d\u540d\u7ba1\u9053\u7684\u901a\u4fe1\u6a21\u578b<\/h3>\n
\u4e09\u3001\u547d\u540d\u7ba1\u9053\u7684\u521b\u5efa：mkfifo () \u51fd\u6570\u4e0e\u547d\u4ee4\u884c<\/h2>\n
3.1 \u547d\u4ee4\u884c\u521b\u5efa\u547d\u540d\u7ba1\u9053<\/h3>\n
\nmkfifo mypipe<\/p>\n\n
3.2 \u7a0b\u5e8f\u4e2d\u521b\u5efa\u547d\u540d\u7ba1\u9053：mkfifo () \u51fd\u6570<\/h3>\n
3.2.1 mkfifo () \u51fd\u6570\u63a5\u53e3<\/h4>\n
\n#include <sys\/stat.h><\/p>\n
\n\/\/ \u53c2\u6570：
\n\/\/ pathname – \u7ba1\u9053\u6587\u4ef6\u7684\u8def\u5f84+\u540d\u79f0，\u5982".\/mypipe"
\n\/\/ mode – \u7ba1\u9053\u6587\u4ef6\u7684\u6743\u9650，\u59820644\u30010666，\u4e0eopen()\u51fd\u6570\u7684mode\u53c2\u6570\u4e00\u81f4
\n\/\/ \u8fd4\u56de\u503c：\u6210\u529f\u8fd4\u56de0，\u5931\u8d25\u8fd4\u56de-1，\u5e76\u8bbe\u7f6eerrno
\nint mkfifo(const char *pathname, mode_t mode);<\/p>\n3.2.2 \u6838\u5fc3\u6ce8\u610f\u70b9<\/h4>\n
3.2.3 \u7b80\u5355\u521b\u5efa\u793a\u4f8b<\/h4>\n
\n#include <sys\/stat.h>
\n#include <stdio.h>
\n#include <errno.h><\/p>\n
\n{
\n \/\/ \u5c06umask\u7f6e0，\u8ba9\u7ba1\u9053\u6743\u9650\u4e25\u683c\u4e3a0644
\n umask(0);
\n \/\/ \u521b\u5efa\u547d\u540d\u7ba1\u9053\u6587\u4ef6.\/mypipe，\u6743\u96500644
\n if (mkfifo(".\/mypipe", 0644) < 0)
\n {
\n perror("mkfifo error");
\n return -1;
\n }
\n printf("\u547d\u540d\u7ba1\u9053\u521b\u5efa\u6210\u529f\\\\n");
\n return 0;
\n}<\/p>\n\u56db\u3001\u547d\u540d\u7ba1\u9053\u7684\u6253\u5f00\u89c4\u5219：\u6700\u5173\u952e\u7684\u6838\u5fc3\u77e5\u8bc6\u70b9<\/h2>\n
4.1 open () \u51fd\u6570\u7684\u6838\u5fc3\u53c2\u6570<\/h3>\n
\n#include <sys\/stat.h>
\n#include <sys\/types.h><\/p>\n\n
4.2 \u4ee5\u8bfb\u65b9\u5f0f\u6253\u5f00\u547d\u540d\u7ba1\u9053（O_RDONLY）<\/h3>\n
4.2.1 \u963b\u585e\u6a21\u5f0f（\u9ed8\u8ba4，\u4ec5 O_RDONLY）<\/h4>\n
4.2.2 \u975e\u963b\u585e\u6a21\u5f0f（O_RDONLY | O_NONBLOCK）<\/h4>\n
4.3 \u4ee5\u5199\u65b9\u5f0f\u6253\u5f00\u547d\u540d\u7ba1\u9053（O_WRONLY）<\/h3>\n
4.3.1 \u963b\u585e\u6a21\u5f0f（\u9ed8\u8ba4，\u4ec5 O_WRONLY）<\/h4>\n
4.3.2 \u975e\u963b\u585e\u6a21\u5f0f（O_WRONLY | O_NONBLOCK）<\/h4>\n
4.4 \u547d\u540d\u7ba1\u9053\u6253\u5f00\u89c4\u5219\u603b\u7ed3<\/h3>\n
\n
\u6253\u5f00\u65b9\u5f0f\u65e0\u5bf9\u5e94\u8fdb\u7a0b\u6253\u5f00\u53e6\u4e00\u7aef\u6709\u5bf9\u5e94\u8fdb\u7a0b\u6253\u5f00\u53e6\u4e00\u7aef<\/tr>\n \n\n O_RDONLY（\u963b\u585e\u8bfb）<\/span><\/td>\n \u963b\u585e\u7b49\u5f85<\/td>\n \u7acb\u523b\u6210\u529f<\/td>\n <\/td>\n<\/tr>\n \n O_RDONLY<\/span><\/td>\n O_NONBLOCK（\u975e\u963b\u585e\u8bfb）<\/td>\n \u7acb\u523b\u6210\u529f<\/td>\n \u7acb\u523b\u6210\u529f<\/td>\n<\/tr>\n \n O_WRONLY（\u963b\u585e\u5199）<\/span><\/td>\n \u963b\u585e\u7b49\u5f85<\/td>\n \u7acb\u523b\u6210\u529f<\/td>\n <\/td>\n<\/tr>\n \n O_WRONLY<\/span><\/td>\n O_NONBLOCK（\u975e\u963b\u585e\u5199）<\/td>\n \u5931\u8d25（ENXIO）<\/td>\n \u7acb\u523b\u6210\u529f<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n 4.5 \u6253\u5f00\u89c4\u5219\u7684\u672c\u8d28<\/h3>\n
\u4e94\u3001\u547d\u540d\u7ba1\u9053\u7684\u8bfb\u5199\u89c4\u5219：\u5b8c\u5168\u590d\u7528\u533f\u540d\u7ba1\u9053<\/h2>\n
5.1 \u65e0\u6570\u636e\u53ef\u8bfb\u65f6\u7684\u8bfb\u64cd\u4f5c\u89c4\u5219<\/h3>\n
\n
5.2 \u7ba1\u9053\u7f13\u51b2\u533a\u5199\u6ee1\u65f6\u7684\u5199\u64cd\u4f5c\u89c4\u5219<\/h3>\n
\n
5.3 \u6240\u6709\u5199\u7aef\u5173\u95ed\u540e\u7684\u8bfb\u64cd\u4f5c\u89c4\u5219<\/h3>\n
5.4 \u6240\u6709\u8bfb\u7aef\u5173\u95ed\u540e\u7684\u5199\u64cd\u4f5c\u89c4\u5219<\/h3>\n
5.5 \u7ba1\u9053\u5199\u5165\u7684\u539f\u5b50\u6027\u89c4\u5219<\/h3>\n
\n
5.6 \u547d\u540d\u7ba1\u9053\u8bfb\u5199\u89c4\u5219\u7684\u6838\u5fc3\u6ce8\u610f\u70b9<\/h3>\n
\u516d\u3001\u547d\u540d\u7ba1\u9053\u7684\u5b9e\u6218\u5f00\u53d1：\u4ece\u57fa\u7840\u6848\u4f8b\u5230 Server-Client \u901a\u4fe1<\/h2>\n
6.1 \u5b9e\u6218\u6848\u4f8b 1：\u547d\u540d\u7ba1\u9053\u57fa\u7840\u8bfb\u5199<\/h3>\n
6.1.1 \u5199\u7aef\u7a0b\u5e8f：fifo_write.c<\/h4>\n
\n#include <sys\/types.h>
\n#include <sys\/stat.h>
\n#include <fcntl.h>
\n#include <unistd.h>
\n#include <string.h>
\n#include <stdlib.h><\/p>\n
\n#define ERR_EXIT(m) \\\\
\ndo{\\\\
\n perror(m);\\\\
\n exit(EXIT_FAILURE);\\\\
\n}while(0)<\/p>\n
\n#define FIFO_NAME ".\/myfifo"<\/p>\n
\n{
\n \/\/ 1. \u521b\u5efa\u547d\u540d\u7ba1\u9053（\u5982\u679c\u5df2\u5b58\u5728，\u4f1a\u62a5\u9519，\u8fd9\u91cc\u5148\u5224\u65ad，\u4e0d\u5b58\u5728\u5219\u521b\u5efa）
\n umask(0);
\n if (mkfifo(FIFO_NAME, 0644) < 0)
\n {
\n \/\/ \u9519\u8bef\u7801EEXIST\u8868\u793a\u6587\u4ef6\u5df2\u5b58\u5728，\u65e0\u9700\u5904\u7406
\n if (errno != EEXIST)
\n ERR_EXIT("mkfifo error");
\n }<\/p>\n
\n int wfd = open(FIFO_NAME, O_WRONLY);
\n if (wfd < 0)
\n ERR_EXIT("open write error");
\n printf("\u5199\u7aef\u6210\u529f\u6253\u5f00\u547d\u540d\u7ba1\u9053，\u6587\u4ef6\u63cf\u8ff0\u7b26：%d\\\\n", wfd);<\/p>\n
\n char buf[1024] = {0};
\n while (1)
\n {
\n \/\/ \u4ece\u952e\u76d8\u8bfb\u53d6\u8f93\u5165
\n printf("\u8bf7\u8f93\u5165\u8981\u53d1\u9001\u7684\u5185\u5bb9：");
\n fflush(stdout);
\n ssize_t s = read(0, buf, sizeof(buf)-1);
\n if (s > 0)
\n {
\n buf[s-1] = 0; \/\/ \u53bb\u6389\u6362\u884c\u7b26
\n \/\/ \u5411\u7ba1\u9053\u5199\u5165\u6570\u636e
\n write(wfd, buf, strlen(buf));
\n \/\/ \u8f93\u5165quit，\u9000\u51fa\u7a0b\u5e8f
\n if (strcmp(buf, "quit") == 0)
\n break;
\n }
\n }<\/p>\n
\n close(wfd);
\n printf("\u5199\u7aef\u5173\u95ed\u547d\u540d\u7ba1\u9053\\\\n");
\n return 0;
\n}<\/p>\n6.1.2 \u8bfb\u7aef\u7a0b\u5e8f：fifo_read.c<\/h4>\n
\n#include <sys\/types.h>
\n#include <sys\/stat.h>
\n#include <fcntl.h>
\n#include <unistd.h>
\n#include <string.h>
\n#include <stdlib.h>
\n#include <errno.h><\/p>\n
\n#define ERR_EXIT(m) \\\\
\ndo{\\\\
\n perror(m);\\\\
\n exit(EXIT_FAILURE);\\\\
\n}while(0)<\/p>\n
\n#define FIFO_NAME ".\/myfifo"<\/p>\n
\n{
\n \/\/ 1. \u4ee5\u963b\u585e\u8bfb\u65b9\u5f0f\u6253\u5f00\u547d\u540d\u7ba1\u9053（\u9ed8\u8ba4O_RDONLY，\u4f1a\u963b\u585e\u7b49\u5f85\u5199\u7aef\u6253\u5f00）
\n int rfd = open(FIFO_NAME, O_RDONLY);
\n if (rfd < 0)
\n ERR_EXIT("open read error");
\n printf("\u8bfb\u7aef\u6210\u529f\u6253\u5f00\u547d\u540d\u7ba1\u9053，\u6587\u4ef6\u63cf\u8ff0\u7b26：%d\\\\n", rfd);<\/p>\n
\n char buf[1024] = {0};
\n while (1)
\n {
\n ssize_t s = read(rfd, buf, sizeof(buf)-1);
\n if (s > 0)
\n {
\n buf[s] = 0;
\n printf("\u8bfb\u7aef\u8bfb\u53d6\u5230\u6570\u636e：%s\\\\n", buf);
\n \/\/ \u8bfb\u53d6\u5230quit，\u9000\u51fa\u7a0b\u5e8f
\n if (strcmp(buf, "quit") == 0)
\n break;
\n }
\n else if (s == 0)
\n {
\n \/\/ s==0\u8868\u793a\u6240\u6709\u5199\u7aef\u5173\u95ed
\n printf("\u6240\u6709\u5199\u7aef\u5df2\u5173\u95ed，\u8bfb\u7aef\u9000\u51fa\\\\n");
\n break;
\n }
\n else
\n {
\n ERR_EXIT("read error");
\n }
\n }<\/p>\n
\n close(rfd);
\n \/\/ \u5220\u9664\u547d\u540d\u7ba1\u9053\u6587\u4ef6（\u53ef\u9009，\u4e5f\u53ef\u4ee5\u624b\u52a8\u5220\u9664）
\n unlink(FIFO_NAME);
\n printf("\u8bfb\u7aef\u5173\u95ed\u5e76\u5220\u9664\u547d\u540d\u7ba1\u9053\\\\n");
\n return 0;
\n}<\/p>\n6.1.3 \u7f16\u8bd1\u4e0e\u8fd0\u884c<\/h4>\n
\ngcc fifo_read.c -o fifo_read\n <\/li>\n\n
6.1.4 \u8fd0\u884c\u7ed3\u679c\u5206\u6790<\/h4>\n
\n
6.2 \u5b9e\u6218\u6848\u4f8b 2：\u57fa\u4e8e\u547d\u540d\u7ba1\u9053\u5b9e\u73b0\u6587\u4ef6\u62f7\u8d1d<\/h3>\n
6.2.1 \u53d1\u9001\u7aef\u7a0b\u5e8f：fifo_copy_send.c<\/h4>\n
\n#include <sys\/types.h>
\n#include <sys\/stat.h>
\n#include <fcntl.h>
\n#include <unistd.h>
\n#include <stdlib.h>
\n#include <errno.h><\/p>\n
\ndo{\\\\
\n perror(m);\\\\
\n exit(EXIT_FAILURE);\\\\
\n}while(0)<\/p>\n
\n#define SRC_FILE ".\/src.txt" \/\/ \u8981\u62f7\u8d1d\u7684\u6e90\u6587\u4ef6<\/p>\n
\n{
\n \/\/ 1. \u521b\u5efa\u547d\u540d\u7ba1\u9053
\n umask(0);
\n if (mkfifo(FIFO_NAME, 0644) < 0)
\n {
\n if (errno != EEXIST)
\n ERR_EXIT("mkfifo error");
\n }<\/p>\n
\n int src_fd = open(SRC_FILE, O_RDONLY);
\n if (src_fd < 0)
\n ERR_EXIT("open src file error");
\n int wfd = open(FIFO_NAME, O_WRONLY);
\n if (wfd < 0)
\n ERR_EXIT("open fifo write error");
\n printf("\u53d1\u9001\u7aef\u51c6\u5907\u5c31\u7eea，\u5f00\u59cb\u62f7\u8d1d\u6587\u4ef6…\\\\n");<\/p>\n
\n char buf[1024] = {0};
\n ssize_t n = 0;
\n while ((n = read(src_fd, buf, sizeof(buf))) > 0)
\n {
\n write(wfd, buf, n);
\n }<\/p>\n
\n close(src_fd);
\n close(wfd);
\n unlink(FIFO_NAME); \/\/ \u53ef\u9009\u5220\u9664
\n printf("\u6587\u4ef6\u62f7\u8d1d\u5b8c\u6210，\u53d1\u9001\u7aef\u9000\u51fa\\\\n");
\n return 0;
\n}<\/p>\n6.2.2 \u63a5\u6536\u7aef\u7a0b\u5e8f：fifo_copy_recv.c<\/h4>\n
\n#include <sys\/types.h>
\n#include <sys\/stat.h>
\n#include <fcntl.h>
\n#include <unistd.h>
\n#include <stdlib.h><\/p>\n
\ndo{\\\\
\n perror(m);\\\\
\n exit(EXIT_FAILURE);\\\\
\n}while(0)<\/p>\n
\n#define DST_FILE ".\/dst.txt" \/\/ \u62f7\u8d1d\u540e\u7684\u76ee\u6807\u6587\u4ef6<\/p>\n
\n{
\n \/\/ 1. \u6253\u5f00\u547d\u540d\u7ba1\u9053\u548c\u76ee\u6807\u6587\u4ef6
\n int rfd = open(FIFO_NAME, O_RDONLY);
\n if (rfd < 0)
\n ERR_EXIT("open fifo read error");
\n \/\/ \u521b\u5efa\u76ee\u6807\u6587\u4ef6，\u6743\u96500644，\u5b58\u5728\u5219\u622a\u65ad
\n int dst_fd = open(DST_FILE, O_WRONLY | O_CREAT | O_TRUNC, 0644);
\n if (dst_fd < 0)
\n ERR_EXIT("open dst file error");
\n printf("\u63a5\u6536\u7aef\u51c6\u5907\u5c31\u7eea，\u5f00\u59cb\u63a5\u6536\u6570\u636e…\\\\n");<\/p>\n
\n char buf[1024] = {0};
\n ssize_t n = 0;
\n while ((n = read(rfd, buf, sizeof(buf))) > 0)
\n {
\n write(dst_fd, buf, n);
\n }<\/p>\n
\n close(rfd);
\n close(dst_fd);
\n printf("\u6587\u4ef6\u63a5\u6536\u5b8c\u6210，\u76ee\u6807\u6587\u4ef6：%s\\\\n", DST_FILE);
\n return 0;
\n}<\/p>\n6.2.3 \u6d4b\u8bd5\u6b65\u9aa4<\/h4>\n
6.2.4 \u6848\u4f8b\u6838\u5fc3\u4eae\u70b9<\/h4>\n
\n
6.3 \u5b9e\u6218\u6848\u4f8b 3：\u57fa\u4e8e\u547d\u540d\u7ba1\u9053\u5b9e\u73b0 Server-Client \u901a\u4fe1<\/h3>\n
6.3.1 \u670d\u52a1\u7aef\u7a0b\u5e8f：serverPipe.c<\/h4>\n
\n#include <sys\/types.h>
\n#include <sys\/stat.h>
\n#include <fcntl.h>
\n#include <unistd.h>
\n#include <stdlib.h>
\n#include <string.h>
\n#include <errno.h><\/p>\n
\ndo{\\\\
\n perror(m);\\\\
\n exit(EXIT_FAILURE);\\\\
\n}while(0)<\/p>\n
\n{
\n \/\/ 1. \u521b\u5efa\u547d\u540d\u7ba1\u9053，\u670d\u52a1\u7aef\u4f5c\u4e3a\u7ba1\u9053\u7684\u521b\u5efa\u8005
\n umask(0);
\n if (mkfifo(FIFO_NAME, 0644) < 0)
\n {
\n if (errno != EEXIST)
\n ERR_EXIT("mkfifo error");
\n }
\n printf("\u670d\u52a1\u7aef\u542f\u52a8，\u7b49\u5f85\u5ba2\u6237\u7aef\u8fde\u63a5…\\\\n");<\/p>\n
\n {
\n \/\/ 2. \u4ee5\u963b\u585e\u8bfb\u65b9\u5f0f\u6253\u5f00\u7ba1\u9053，\u5ba2\u6237\u7aef\u9000\u51fa\u540e，\u91cd\u65b0\u6253\u5f00\u7b49\u5f85\u65b0\u5ba2\u6237\u7aef
\n int rfd = open(FIFO_NAME, O_RDONLY);
\n if (rfd < 0)
\n ERR_EXIT("open read error");<\/p>\n
\n while (1)
\n {
\n ssize_t s = read(rfd, buf, sizeof(buf)-1);
\n if (s > 0)
\n {
\n buf[s-1] = 0; \/\/ \u53bb\u6389\u6362\u884c\u7b26
\n printf("\u5ba2\u6237\u7aef\u6d88\u606f：%s\\\\n", buf);
\n }
\n else if (s == 0)
\n {
\n \/\/ \u5ba2\u6237\u7aef\u5173\u95ed\u5199\u7aef，\u670d\u52a1\u7aef\u5173\u95ed\u5f53\u524d\u8bfb\u7aef，\u91cd\u65b0\u7b49\u5f85
\n printf("\u5ba2\u6237\u7aef\u65ad\u5f00\u8fde\u63a5，\u7b49\u5f85\u65b0\u5ba2\u6237\u7aef…\\\\n");
\n close(rfd);
\n break;
\n }
\n else
\n {
\n ERR_EXIT("read error");
\n close(rfd);
\n break;
\n }
\n }
\n }<\/p>\n
\n close(rfd);
\n unlink(FIFO_NAME);
\n return 0;
\n}<\/p>\n6.3.2 \u5ba2\u6237\u7aef\u7a0b\u5e8f：clientPipe.c<\/h4>\n
\n#include <sys\/types.h>
\n#include <sys\/stat.h>
\n#include <fcntl.h>
\n#include <unistd.h>
\n#include <stdlib.h>
\n#include <string.h>
\n#include <errno.h><\/p>\n
\ndo{\\\\
\n perror(m);\\\\
\n exit(EXIT_FAILURE);\\\\
\n}while(0)<\/p>\n
\n{
\n \/\/ 1. \u4ee5\u963b\u585e\u5199\u65b9\u5f0f\u6253\u5f00\u547d\u540d\u7ba1\u9053，\u8fde\u63a5\u670d\u52a1\u7aef
\n int wfd = open(FIFO_NAME, O_WRONLY);
\n if (wfd < 0)
\n ERR_EXIT("open write error");
\n printf("\u5ba2\u6237\u7aef\u6210\u529f\u8fde\u63a5\u670d\u52a1\u7aef，\u8bf7\u8f93\u5165\u6d88\u606f（\u8f93\u5165quit\u9000\u51fa）：\\\\n");<\/p>\n
\n char buf[1024] = {0};
\n while (1)
\n {
\n printf("> ");
\n fflush(stdout);
\n ssize_t s = read(0, buf, sizeof(buf)-1);
\n if (s > 0)
\n {
\n write(wfd, buf, s);
\n if (strncmp(buf, "quit", 4) == 0)
\n {
\n printf("\u5ba2\u6237\u7aef\u9000\u51fa\\\\n");
\n break;
\n }
\n memset(buf, 0, sizeof(buf));
\n }
\n }<\/p>\n
\n close(wfd);
\n return 0;
\n}<\/p>\n6.3.3 \u7f16\u8bd1\u4e0e\u8fd0\u884c<\/h4>\n
\nall:serverPipe clientPipe<\/p>\n
\n gcc -o $@ $^
\nclientPipe:clientPipe.c
\n gcc -o $@ $^<\/p>\n
\nclean:
\n rm -f serverPipe clientPipe\n <\/li>\n6.3.4 \u6848\u4f8b\u6838\u5fc3\u4eae\u70b9<\/h4>\n
\n
\u4e03\u3001\u547d\u540d\u7ba1\u9053\u7684\u6838\u5fc3\u7279\u70b9\u4e0e\u4f7f\u7528\u573a\u666f<\/h2>\n
7.1 \u547d\u540d\u7ba1\u9053\u7684\u6838\u5fc3\u7279\u70b9<\/h3>\n
7.2 \u547d\u540d\u7ba1\u9053\u7684\u5178\u578b\u4f7f\u7528\u573a\u666f<\/h3>\n
7.3 \u547d\u540d\u7ba1\u9053\u7684\u5c40\u9650\u6027<\/h3>\n
7.4 \u547d\u540d\u7ba1\u9053\u4e0e\u5176\u4ed6 IPC \u65b9\u5f0f\u7684\u5bf9\u6bd4<\/h3>\n
\n
IPC \u65b9\u5f0f\u4eb2\u7f18\u9650\u5236\u901a\u4fe1\u65b9\u5411\u6570\u636e\u683c\u5f0f\u8de8\u4e3b\u673a\u5e76\u53d1\u6027\u80fd\u6838\u5fc3\u4f18\u52bf<\/tr>\n \n\n \u533f\u540d\u7ba1\u9053<\/td>\n \u6709<\/td>\n \u534a\u53cc\u5de5<\/td>\n \u5b57\u8282\u6d41<\/td>\n \u5426<\/td>\n \u4e00\u822c<\/td>\n \u7b80\u5355\u3001\u8f7b\u91cf\u3001\u4eb2\u7f18\u8fdb\u7a0b\u4e13\u7528<\/td>\n<\/tr>\n \n \u547d\u540d\u7ba1\u9053<\/td>\n \u65e0<\/td>\n \u534a\u53cc\u5de5<\/td>\n \u5b57\u8282\u6d41<\/td>\n \u5426<\/td>\n \u4e00\u822c<\/td>\n \u65e0\u4eb2\u7f18\u9650\u5236\u3001\u63a5\u53e3\u7edf\u4e00<\/td>\n<\/tr>\n \n \u5171\u4eab\u5185\u5b58<\/td>\n \u65e0<\/td>\n \u5168\u53cc\u5de5<\/td>\n \u81ea\u5b9a\u4e49<\/td>\n \u5426<\/td>\n \u6781\u9ad8<\/td>\n \u6700\u5feb\u7684 IPC \u65b9\u5f0f<\/td>\n<\/tr>\n \n \u6d88\u606f\u961f\u5217<\/td>\n \u65e0<\/td>\n \u5168\u53cc\u5de5<\/td>\n \u6d88\u606f<\/td>\n \u5426<\/td>\n \u8f83\u597d<\/td>\n \u6709\u6d88\u606f\u8fb9\u754c\u3001\u81ea\u5e26\u683c\u5f0f<\/td>\n<\/tr>\n \n Socket（\u672c\u5730）<\/td>\n \u65e0<\/td>\n \u5168\u53cc\u5de5<\/td>\n \u5b57\u8282\u6d41 \/ \u6570\u636e\u5305<\/td>\n \u662f<\/td>\n \u8f83\u597d<\/td>\n \u8de8\u4e3b\u673a\u3001\u529f\u80fd\u5f3a\u5927<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n \n
\u516b\u3001\u547d\u540d\u7ba1\u9053\u5f00\u53d1\u7684\u907f\u5751\u6307\u5357<\/h2>\n
8.1 \u5751 1：\u672a\u5904\u7406 SIGPIPE \u4fe1\u53f7，\u5bfc\u81f4\u8fdb\u7a0b\u610f\u5916\u9000\u51fa<\/h3>\n
\n\/\/ \u5ffd\u7565SIGPIPE\u4fe1\u53f7
\nsignal(SIGPIPE, SIG_IGN);<\/p>\n8.2 \u5751 2：\u975e\u963b\u585e\u6a21\u5f0f\u4e0b，\u9519\u8bef\u5224\u65ad\u4e0d\u4e25\u8c28<\/h3>\n
\nif (s < 0)
\n{
\n if (errno == EAGAIN)
\n {
\n \/\/ \u975e\u963b\u585e\u6a21\u5f0f\u4e0b，\u65e0\u6570\u636e，\u53ef\u91cd\u8bd5
\n continue;
\n }
\n else
\n {
\n \/\/ \u771f\u6b63\u7684\u9519\u8bef，\u5904\u7406
\n perror("read error");
\n break;
\n }
\n}<\/p>\n8.3 \u5751 3：\u591a\u8fdb\u7a0b\u5199\u7ba1\u9053\u65f6，\u6570\u636e\u6df7\u4e71<\/h3>\n
8.4 \u5751 4：\u53cc\u5411\u901a\u4fe1\u65f6，\u53ea\u521b\u5efa\u4e00\u4e2a\u7ba1\u9053，\u5bfc\u81f4\u6b7b\u9501<\/h3>\n
8.5 \u5751 5：FIFO \u6587\u4ef6\u672a\u5220\u9664，\u5bfc\u81f4\u7a0b\u5e8f\u91cd\u542f\u65f6 mkfifo \u62a5\u9519<\/h3>\n
8.6 \u5751 6：\u963b\u585e\u6a21\u5f0f\u4e0b，\u8fdb\u7a0b\u5361\u6b7b，\u65e0\u6cd5\u9000\u51fa<\/h3>\n
\n\u603b\u7ed3<\/h2>\n
\n\u524d\u8a00
\n\u4e00\u3001\u547d\u540d\u7ba1\u9053\u7684\u8bde\u751f：\u89e3\u51b3\u533f\u540d\u7ba1\u9053\u7684\u6838\u5fc3\u75db\u70b9
\n1.1 \u533f\u540d\u7ba1\u9053\u7684\u81f4\u547d\u77ed\u677f
\n1.2 \u547d\u540d\u7ba1\u9053\u7684\u6838\u5fc3\u8bbe\u8ba1\u601d\u8def
\n1.3 \u547d\u540d\u7ba1\u9053\u4e0e\u533f\u540d\u7ba1\u9053\u7684\u6838\u5fc3\u5173\u8054
\n\u4e8c\u3001\u547d\u540d\u7ba1\u9053\u7684\u6838\u5fc3\u8ba4\u77e5：\u4ec0\u4e48\u662f FIFO \u6587\u4ef6？
\n2.1 FIFO \u6587\u4ef6\u7684\u672c\u8d28
\n2.2 FIFO \u6587\u4ef6\u7684\u6807\u8bc6
\n2.3 \u547d\u540d\u7ba1\u9053\u7684\u901a\u4fe1\u6a21\u578b
\n\u4e09\u3001\u547d\u540d\u7ba1\u9053\u7684\u521b\u5efa：mkfifo () \u51fd\u6570\u4e0e\u547d\u4ee4\u884c
\n3.1 \u547d\u4ee4\u884c\u521b\u5efa\u547d\u540d\u7ba1\u9053
\n3.2 \u7a0b\u5e8f\u4e2d\u521b\u5efa\u547d\u540d\u7ba1\u9053<\/p>\n","protected":false},"author":2,"featured_media":75088,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[7951,1054,58,2620,16,1714,6150],"topic":[],"class_list":["post-75090","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-server","tag-fifo","tag-c-c","tag-linux","tag-2620","tag-16","tag-1714","tag-6150"],"yoast_head":"\n