{"id":2930,"date":"2011-04-20T17:31:50","date_gmt":"2011-04-20T09:31:50","guid":{"rendered":"http:\/\/edsionte.com\/techblog\/?p=2930"},"modified":"2011-04-23T16:30:41","modified_gmt":"2011-04-23T08:30:41","slug":"cs%e6%a8%a1%e5%9e%8b%e4%b8%ad%e7%9a%84%e5%b9%b6%e5%8f%91%e6%9c%8d%e5%8a%a1%e5%99%a8","status":"publish","type":"post","link":"http:\/\/edsionte.com\/techblog\/archives\/2930","title":{"rendered":"C\/S\u6a21\u578b\u4e2d\u7684\u5e76\u53d1\u670d\u52a1\u5668"},"content":{"rendered":"

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\u4e0a\u8ff0\u540c\u65f6\u53ea\u80fd\u5904\u7406\u4e00\u4e2a\u5ba2\u6237\u7aef\u8bf7\u6c42\u7684\u670d\u52a1\u5668\u88ab\u79f0\u4e3a\u8fed\u4ee3\u670d\u52a1\u5668\uff08iterative server\uff09\uff0c\u8fd9\u6837\u7684C\/S\u6a21\u578b\u53ea\u80fd\u5e94\u5bf9\u90a3\u4e9b\u7b80\u5355\u7684\u5e94\u7528\u3002\u5927\u591a\u6570\u60c5\u51b5\u4e0b\u6211\u4eec\u5e0c\u671b\u670d\u52a1\u5668\u53ef\u4ee5\u540c\u65f6\u670d\u52a1\u591a\u4e2a\u5ba2\u6237\u7aef\u7a0b\u5e8f\uff0c\u5373\u670d\u52a1\u5668\u7a0b\u5e8f\u65e2\u80fd\u5904\u7406\u5ba2\u6237\u7aef\u53d1\u9001\u6765\u7684\u8bf7\u6c42\u540c\u65f6\u53c8\u80fd\u63a5\u6536\u5176\u4ed6\u5ba2\u6237\u7aef\u53d1\u9001\u7684\u8bf7\u6c42\u3002\u8fd9\u6837\u7684\u670d\u52a1\u5668\u79f0\u4e3a\u5e76\u53d1\u670d\u52a1\u5668\uff08concurrent server\uff09\u3002<\/p>\n

Linux\u4e2d\u5b9e\u73b0\u5e76\u53d1\u670d\u52a1\u5668\u7684\u65b9\u6cd5\u5f88\u7b80\u5355\uff1a\u6bcf\u5f53\u5ba2\u6237\u7aef\u5bf9\u670d\u52a1\u5668\u6709\u7f51\u7edc\u8bf7\u6c42\u65f6\uff0c\u670d\u52a1\u5668\u7a0b\u5e8f\u5c31fork\u4e00\u4e2a\u5b50\u670d\u52a1\u5668\u8fdb\u7a0b\u6765\u5904\u7406\u8fd9\u4e2a\u5ba2\u6237\u7684\u8bf7\u6c42\uff0c\u800c\u4e3b\u670d\u52a1\u5668\u7a0b\u5e8f\u4ecd\u5904\u4e8e\u7b49\u5f85\u5176\u4ed6\u5ba2\u6237\u7aef\u7f51\u7edc\u8bf7\u6c42\u7684\u72b6\u6001\u3002\u57fa\u4e8e\u8fd9\u4e2a\u539f\u7406\uff0c\u5e76\u53d1\u670d\u52a1\u5668\u7684\u57fa\u672c\u6a21\u578b\u5982\u4e0b\uff1a<\/p>\n

\tif ((sockfd = socket(AF_INET, SOCK_STREAM, 0)) == -1) {\r\n\t\tmy_error(\"socket\", errno, __LINE__);\r\n\t}\r\n\r\n\tif (bind(sockfd, (struct sockaddr *)&my_addr,\r\n\t\t\t\tsizeof(struct sockaddr_in)) == -1) {\r\n\t\tmy_error(\"bind\", errno, __LINE__);\r\n\t}\r\n\r\n\tif (listen(sockfd, BACKLOG) == -1) {\r\n\t\tmy_error(\"listen\", errno, __LINE__);\r\n\t}\r\n\r\n\twhile (1) {\r\n\t\tsin_size = sizeof(struct sockaddr_in);\r\n\t\tif ((client_fd = accept(sockfd, (struct sockaddr *)&remote_addr, &sin_size)) == -1) {\r\n\t\t\tmy_error(\"accept\", errno, __LINE__);\r\n\t\t\tcontinue;\r\n\t\t}\r\n\r\n\t\tif ((pid = fork()) == 0) {\r\n\t\t\tclose(sockfd);\r\n\t\t\tprocess_client_request(client_fd);\r\n\t\t\tclose(client_fd);\r\n\t\t\texit(0);\r\n\t\t} else if (pid > 0)\r\n\t\t\tclose(client_fd);\r\n\t\telse\r\n\t\t\tmy_error(\"fork\", errno, __LINE__);\r\n\t}<\/pre>\n
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\"\"<\/a><\/p>\n
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\"\"<\/a>\u8fd9\u5c31\u662f\u76d1\u542c\u5957\u63a5\u5b57\u548c\u8fde\u63a5\u5957\u63a5\u5b57\u4e24\u8005\u7684\u6700\u7ec8\u72b6\u6001\uff0c\u5b50\u8fdb\u7a0b\u5904\u7406\u5ba2\u6237\u8bf7\u6c42\uff0c\u7236\u8fdb\u7a0b\u76d1\u542c\u5176\u4ed6\u5ba2\u6237\u8bf7\u6c42\u3002\u8fd9\u6837\u7684\u5e76\u53d1\u670d\u52a1\u5668\u770b\u4f3c\u5b8c\u7f8e\uff0c\u4f46\u662f\u4f1a\u4ea7\u751f\u8bb8\u591a\u50f5\u6b7b\u8fdb\u7a0b\uff0c\u8fd9\u662f\u4e3a\u4ec0\u4e48\uff1f\u4e0b\u6587\u5c06\u4f1a\u5206\u6790\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
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