![\"menu-r.4af5f7ec.gif\"](\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/06\/20250605210051-68420583e88af.gif\")
<\/p>\n \u672c\u6587\u8fd8\u6709\u914d\u5957\u7684\u7cbe\u54c1\u8d44\u6e90，\u70b9\u51fb\u83b7\u53d6 <\/p>\n
\u7b80\u4ecb：\u5728\u4f7f\u7528C++\u5f00\u53d1TCP\u670d\u52a1\u5668\u65f6，\u7406\u89e3\u548c\u5904\u7406TCP\u534f\u8bae\u4e2d\u7684"\u62c6\u5305"\u548c"\u7c98\u5305"\u95ee\u9898\u5bf9\u4e8e\u6784\u5efa\u9ad8\u6548\u7a33\u5b9a\u7684\u7f51\u7edc\u670d\u52a1\u662f\u81f3\u5173\u91cd\u8981\u7684\u3002\u672c\u6587\u5c06\u8be6\u7ec6\u89e3\u91ca\u8fd9\u4e24\u4e2a\u6982\u5ff5，\u5e76\u63a2\u8ba8\u89e3\u51b3\u5b83\u4eec\u7684\u5e38\u7528\u65b9\u6cd5，\u5982\u56fa\u5b9a\u957f\u5ea6\u62a5\u6587\u5934\u3001\u5206\u9694\u7b26\u6cd5\u3001\u6d88\u606f\u534f\u8bae\u548c\u7f13\u51b2\u533a\u7ba1\u7406\u7b49\u3002\u6587\u7ae0\u8fd8\u5c06\u63a2\u8ba8\u5728C++\u4e2d\u7684\u5b9e\u9645\u5b9e\u73b0\u65b9\u5f0f，\u5e76\u6307\u51fa\u5728\u5b9e\u9645\u5f00\u53d1\u4e2d\u9700\u8981\u8003\u8651\u7684\u5404\u79cd\u56e0\u7d20，\u5982\u6027\u80fd\u3001\u5185\u5b58\u5360\u7528\u548c\u4ee3\u7801\u590d\u6742\u5ea6\u3002\u5bf9\u4e8e\u5927\u578b\u9879\u76ee，\u672c\u6587\u4e5f\u5efa\u8bae\u8003\u8651\u4f7f\u7528\u6210\u719f\u7f51\u7edc\u5e93\u7b80\u5316\u5f00\u53d1\u3002 ![\"c++\u670d\u52a1\u5668](\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/06\/20250605210052-68420584044ca.jpg\")
<\/p>\n
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\u4e3a\u4e86\u786e\u4fdd\u6570\u636e\u4f20\u8f93\u7684\u6b63\u786e\u6027，\u5fc5\u987b\u5b9e\u73b0\u4e00\u5957\u673a\u5236\u6765\u8bc6\u522b\u548c\u5904\u7406\u62c6\u5305\u548c\u7c98\u5305\u3002\u5e38\u89c1\u7684\u65b9\u6cd5\u5305\u62ec\u4f7f\u7528\u56fa\u5b9a\u957f\u5ea6\u7684\u62a5\u6587\u5934\u3001\u5206\u9694\u7b26\u6cd5\u6216\u6d88\u606f\u534f\u8bae\u7b49\u3002\u5728\u672c\u7ae0\u4e2d，\u6211\u4eec\u5c06\u6df1\u5165\u63a2\u8ba8\u6bcf\u4e00\u79cd\u65b9\u6cd5\u7684\u5b9e\u73b0\u7ec6\u8282\u548c\u4f18\u7f3a\u70b9，\u5e76\u63d0\u4f9b\u5b9e\u9645\u7684\u7f16\u7801\u793a\u4f8b\u6765\u5c55\u793a\u5982\u4f55\u5728C++\u4e2d\u5b9e\u73b0\u5b83\u4eec\u3002\u8fd9\u4e9b\u89e3\u51b3\u65b9\u6848\u5c06\u5e2e\u52a9\u5f00\u53d1\u8005\u6784\u5efa\u5065\u58ee\u7684\u7f51\u7edc\u901a\u4fe1\u5e94\u7528，\u786e\u4fdd\u6570\u636e\u5b8c\u6574\u6027\u548c\u7a0b\u5e8f\u7684\u6b63\u786e\u6027\u3002 <\/p>\n
\u5728\u4f7f\u7528\u56fa\u5b9a\u957f\u5ea6\u62a5\u6587\u5934\u6765\u89e3\u51b3\u62c6\u5305\u4e0e\u7c98\u5305\u95ee\u9898\u65f6，\u62a5\u6587\u5934\u7684\u8bbe\u8ba1\u81f3\u5173\u91cd\u8981\u3002\u62a5\u6587\u5934\u901a\u5e38\u5305\u542b\u56fa\u5b9a\u957f\u5ea6\u7684\u5b57\u6bb5，\u7528\u4e8e\u63d0\u4f9b\u5173\u4e8e\u62a5\u6587\u5185\u5bb9\u7684\u4fe1\u606f\u3002\u5176\u7ed3\u6784\u4e00\u822c\u5305\u62ec\u540c\u6b65\u5b57\u8282\u3001\u6d88\u606f\u957f\u5ea6\u3001\u6d88\u606f\u7c7b\u578b\u3001\u6821\u9a8c\u548c\u3001\u7248\u672c\u53f7\u7b49\u5173\u952e\u5b57\u6bb5\u3002 <\/p>\n
\u62a5\u6587\u5934\u7684\u8bbe\u8ba1\u9700\u8981\u9075\u5faa\u4e00\u5b9a\u7684\u539f\u5219\u4ee5\u786e\u4fdd\u5176\u5728\u5e94\u7528\u5c42\u9762\u4e0a\u7684\u6709\u6548\u6027\u53ca\u6269\u5c55\u6027\u3002\u5b83\u4eec\u5fc5\u987b\u8db3\u591f\u7b80\u660e，\u4ee5\u51cf\u5c11\u4f20\u8f93\u7684\u989d\u5916\u5f00\u9500，\u4f46\u540c\u65f6\u53c8\u8981\u5305\u542b\u8db3\u591f\u7684\u4fe1\u606f\u4ee5\u5e94\u5bf9\u7f51\u7edc\u4e0a\u7684\u5404\u79cd\u5f02\u5e38\u60c5\u51b5\u3002 <\/p>\n
\u5173\u952e\u5b57\u6bb5\u7684\u5b9a\u4e49\u5bf9\u4e8e\u62a5\u6587\u5934\u800c\u8a00\u81f3\u5173\u91cd\u8981，\u5b83\u4eec\u7684\u683c\u5f0f\u548c\u5185\u5bb9\u5e94\u5f53\u4e00\u81f4\u4e14\u5177\u6709\u552f\u4e00\u6027，\u4ee5\u4fdd\u8bc1\u901a\u4fe1\u53cc\u65b9\u80fd\u6b63\u786e\u7406\u89e3\u548c\u5904\u7406\u6d88\u606f\u3002 <\/p>\n
\u4f8b\u5982，\u6d88\u606f\u957f\u5ea6\u5b57\u6bb5\u901a\u5e38\u4ee5\u5b57\u8282\u4e3a\u5355\u4f4d，\u53ef\u4ee5\u662f\u56fa\u5b9a\u5b57\u8282\u7684\u65e0\u7b26\u53f7\u6574\u6570\u3002\u6821\u9a8c\u548c\u5b57\u6bb5\u53ef\u4ee5\u662f\u4e00\u4e2a\u56fa\u5b9a\u957f\u5ea6\u7684\u6821\u9a8c\u503c，\u53ef\u4ee5\u662f\u7b80\u5355\u7684\u6c42\u548c\u6821\u9a8c，\u4e5f\u53ef\u4ee5\u662f\u66f4\u4e3a\u590d\u6742\u7684\u5faa\u73af\u5197\u4f59\u6821\u9a8c（CRC）\u503c\u3002 <\/p>\n
\u5728\u53d1\u9001\u7aef，\u4e3a\u4e86\u5b9e\u73b0\u56fa\u5b9a\u957f\u5ea6\u62a5\u6587\u5934\u65b9\u6cd5，\u5176\u6b65\u9aa4\u5927\u81f4\u53ef\u4ee5\u6982\u62ec\u4e3a\u4ee5\u4e0b\u51e0\u4e2a： <\/p>\n
\u8fd9\u91cc\u662f\u4e00\u4e2a\u4ee3\u7801\u793a\u4f8b，\u5c55\u793a\u5982\u4f55\u521b\u5efa\u4e00\u4e2a\u7b80\u5355\u7684\u62a5\u6587\u5934： <\/p>\n
#include <cstdint><\/p>\n
struct FixedLengthHeader {
\n uint8_t syncByte[4]; \/\/ \u540c\u6b65\u5b57\u8282
\n uint32_t messageLength; \/\/ \u6d88\u606f\u957f\u5ea6
\n uint8_t messageType; \/\/ \u6d88\u606f\u7c7b\u578b
\n uint32_t checksum; \/\/ \u6821\u9a8c\u548c
\n uint8_t version; \/\/ \u7248\u672c\u53f7
\n};<\/p>\n
\/\/ \u5047\u8bbe\u6570\u636e\u5305\u7684\u5185\u5bb9\u662f\u7eaf\u6587\u672c\u6570\u636e
\nstd::string message = "data";<\/p>\n
\/\/ \u521b\u5efa\u62a5\u6587\u5934\u5b9e\u4f8b
\nFixedLengthHeader header;<\/p>\n
\/\/ \u8bbe\u7f6e\u540c\u6b65\u5b57\u8282\u3001\u6d88\u606f\u7c7b\u578b\u3001\u7248\u672c\u53f7
\nstd::fill_n(header.syncByte, 4, 0xFF); \/\/ 0xFF\u8868\u793a\u540c\u6b65\u5b57\u8282
\nheader.messageType = 0x01; \/\/ \u6d88\u606f\u7c7b\u578b\u793a\u4f8b\u503c
\nheader.version = 0x01; \/\/ \u7248\u672c\u53f7\u793a\u4f8b\u503c<\/p>\n
\/\/ \u8ba1\u7b97\u6d88\u606f\u957f\u5ea6，\u5e76\u8f6c\u6362\u4e3a\u5b57\u8282\u586b\u5145\u5230\u62a5\u6587\u5934
\nheader.messageLength = sizeof(message);<\/p>\n
\/\/ \u5047\u8bbe\u7684\u7b80\u5355\u6821\u9a8c\u548c\u8ba1\u7b97\u65b9\u6cd5（\u4f8b\u5982\u5b57\u8282\u548c）
\nuint32_t checksum = 0;
\nfor (uint8_t byte : message) {
\n checksum += byte;
\n}
\nheader.checksum = checksum;<\/p>\n
\/\/ \u5c06\u62a5\u6587\u5934\u4e0e\u6d88\u606f\u5185\u5bb9\u62fc\u63a5，\u51c6\u5907\u53d1\u9001
\nstd::vector<uint8_t> packet;
\npacket.insert(packet.end(), reinterpret_cast<uint8_t*>(&header), reinterpret_cast<uint8_t*>(&header) + sizeof(header));
\npacket.insert(packet.end(), message.begin(), message.end());<\/p>\n
\u63a5\u6536\u7aef\u6536\u5230\u6570\u636e\u5305\u540e，\u9700\u8981\u6309\u7167\u53d1\u9001\u7aef\u7684\u62a5\u6587\u5934\u683c\u5f0f\u8fdb\u884c\u89e3\u6790，\u4ece\u800c\u6b63\u786e\u5904\u7406\u63a5\u6536\u5230\u7684\u62a5\u6587\u3002 <\/p>\n
\u4ee5\u4e0b\u662f\u63a5\u6536\u7aef\u5904\u7406\u6570\u636e\u5305\u7684\u57fa\u672c\u6b65\u9aa4： <\/p>\n
\/\/ \u4ece\u7f51\u7edc\u8bfb\u53d6\u6570\u636e\u5230buffer\u4e2d
\nstd::vector<uint8_t> buffer = ReadDataFromNetwork();<\/p>\n
\/\/ \u89e3\u6790\u62a5\u6587\u5934
\nFixedLengthHeader header;
\nstd::copy(buffer.begin(), buffer.begin() + sizeof(header), reinterpret_cast<uint8_t*>(&header));<\/p>\n
\/\/ \u6821\u9a8c\u6d88\u606f\u957f\u5ea6
\nif (header.messageLength > buffer.size()) {
\n throw std::runtime_error("Incomplete message received");
\n}<\/p>\n
\/\/ \u8bfb\u53d6\u6d88\u606f\u5185\u5bb9
\nstd::string message(buffer.begin() + sizeof(header), buffer.begin() + sizeof(header) + header.messageLength);<\/p>\n
\/\/ \u9a8c\u8bc1\u6821\u9a8c\u548c
\nuint32_t checksum = 0;
\nfor (uint8_t byte : message) {
\n checksum += byte;
\n}
\nif (checksum != header.checksum) {
\n throw std::runtime_error("Invalid checksum, message corrupted");
\n}<\/p>\n
\/\/ \u6839\u636e\u6d88\u606f\u7c7b\u578b\u8fdb\u884c\u5904\u7406
\nswitch (header.messageType) {
\n case 0x01:
\n \/\/ \u5904\u7406\u6d88\u606f\u7c7b\u578b0x01
\n break;
\n \/\/ \u5176\u4ed6\u6d88\u606f\u7c7b\u578b\u5904\u7406…
\n default:
\n throw std::runtime_error("Unknown message type");
\n}<\/p>\n
\u56fa\u5b9a\u957f\u5ea6\u62a5\u6587\u5934\u65b9\u6cd5\u5177\u6709\u4ee5\u4e0b\u4f18\u52bf： <\/p>\n
\u5c3d\u7ba1\u56fa\u5b9a\u957f\u5ea6\u62a5\u6587\u5934\u65b9\u6cd5\u6709\u5176\u4f18\u52bf，\u4f46\u4e5f\u5b58\u5728\u5c40\u9650\u6027： <\/p>\n
\u8be5\u65b9\u6cd5\u9002\u5408\u4e8e\u5bf9\u4f20\u8f93\u53ef\u9760\u6027\u8981\u6c42\u9ad8，\u4e14\u6d88\u606f\u957f\u5ea6\u53d8\u5316\u4e0d\u5927\u7684\u5e94\u7528\u573a\u666f，\u4f8b\u5982\u5d4c\u5165\u5f0f\u7cfb\u7edf\u6216\u8005\u534f\u8bae\u76f8\u5bf9\u7b80\u5355\u7684\u7f51\u7edc\u5e94\u7528\u3002 <\/p>\n
\u5206\u9694\u7b26\u6cd5\u662f\u4e00\u79cd\u5904\u7406TCP\u62c6\u5305\u7c98\u5305\u95ee\u9898\u7684\u7b80\u5355\u800c\u6709\u6548\u7684\u65b9\u6cd5\u3002\u5b83\u901a\u8fc7\u5728\u6bcf\u4e2a\u6570\u636e\u5305\u4e4b\u95f4\u63d2\u5165\u4e00\u4e2a\u7279\u5b9a\u7684\u5b57\u8282\u5e8f\u5217\u4f5c\u4e3a\u5206\u9694\u7b26\u6765\u6807\u8bc6\u5404\u4e2a\u6d88\u606f\u7684\u8fb9\u754c\u3002\u63a5\u6536\u65b9\u901a\u8fc7\u67e5\u627e\u8fd9\u4e9b\u5206\u9694\u7b26\u6765\u8bc6\u522b\u548c\u5206\u5272\u6570\u636e\u5305\u3002\u5206\u9694\u7b26\u6cd5\u7684\u5173\u952e\u5728\u4e8e，\u5206\u9694\u7b26\u9700\u8981\u8db3\u591f\u7279\u6b8a，\u4ee5\u786e\u4fdd\u4e0d\u4f1a\u4e0e\u6570\u636e\u5185\u5bb9\u672c\u8eab\u6df7\u6dc6\u3002 <\/p>\n
\u7406\u60f3\u7684\u5206\u9694\u7b26\u5e94\u5f53\u6ee1\u8db3\u4ee5\u4e0b\u6761\u4ef6： 1. \u4e0d\u4f1a\u51fa\u73b0\u5728\u6b63\u5e38\u6570\u636e\u6d41\u4e2d，\u6216\u8005\u51fa\u73b0\u7684\u51e0\u7387\u6781\u4f4e\u3002 2. \u4e0d\u4f1a\u4e0e\u73b0\u6709\u7684\u534f\u8bae\u683c\u5f0f\u4ea7\u751f\u51b2\u7a81\u3002 3. \u5c3d\u53ef\u80fd\u77ed\u5c0f，\u4ee5\u51cf\u5c11\u989d\u5916\u7684\u5f00\u9500\u3002 <\/p>\n
\u8003\u8651\u5230\u8fd9\u4e9b\u56e0\u7d20，\u901a\u5e38\u4f7f\u7528\u7684\u5206\u9694\u7b26\u6709\u51e0\u79cd\u5e38\u89c1\u7684\u9009\u62e9： – \u7279\u6b8a\u5b57\u7b26，\u59820x1A（\u6587\u4ef6\u7ed3\u675f\u7b26）\u3002 – \u7279\u5b9a\u7684\u4f4d\u6a21\u5f0f，\u4f8b\u5982\u8fde\u7eed\u7684\u4e24\u4e2a\u5b57\u82820x0D 0x0A（\u56de\u8f66\u6362\u884c）\u3002 – \u6709\u7279\u5b9a\u7f16\u7801\u7684\u5b57\u7b26\u4e32，\u5982HTTP\u534f\u8bae\u4e2d\u7684CRLF(Carriage-Return Line-Feed)\u3002 <\/p>\n
\u5728\u53d1\u9001\u7aef，\u5e94\u7528\u7a0b\u5e8f\u9700\u8981\u5728\u6bcf\u4e2a\u6570\u636e\u5305\u7684\u672b\u5c3e\u52a0\u5165\u5206\u9694\u7b26\u3002\u8fd9\u4e2a\u8fc7\u7a0b\u901a\u5e38\u5305\u62ec\u4ee5\u4e0b\u6b65\u9aa4： 1. \u5c06\u539f\u59cb\u6570\u636e\u6309\u534f\u8bae\u683c\u5f0f\u5c01\u88c5\u3002 2. \u8ba1\u7b97\u5c01\u88c5\u540e\u7684\u6570\u636e\u957f\u5ea6\u3002 3. \u5728\u6570\u636e\u5305\u672b\u5c3e\u6dfb\u52a0\u5206\u9694\u7b26\u3002 4. \u5c06\u6570\u636e\u5305\u901a\u8fc7\u5957\u63a5\u5b57\u53d1\u9001\u51fa\u53bb\u3002 <\/p>\n
\u4f8b\u5982，\u4f7f\u7528C++\u4e2d\u7684\u4f2a\u4ee3\u7801\u5982\u4e0b： <\/p>\n
void SendDataWithDelimiter(SOCKET sock, const char* data, size_t size) {
\n \/\/ \u8ba1\u7b97\u6570\u636e\u957f\u5ea6
\n size_t totalSize = size + sizeof(delimiter);
\n \/\/ \u5206\u914d\u5185\u5b58
\n char* buffer = new char[totalSize];
\n \/\/ \u62f7\u8d1d\u6570\u636e
\n memcpy(buffer, data, size);
\n \/\/ \u6dfb\u52a0\u5206\u9694\u7b26
\n memcpy(buffer + size, &delimiter, sizeof(delimiter));
\n \/\/ \u53d1\u9001\u6570\u636e
\n send(sock, buffer, totalSize, 0);
\n \/\/ \u6e05\u7406\u8d44\u6e90
\n delete[] buffer;
\n}<\/p>\n
\u63a5\u6536\u7aef\u5728\u5904\u7406\u5206\u9694\u7b26\u6cd5\u65f6，\u9700\u8981\u5b9e\u73b0\u4e00\u4e2a\u5faa\u73af，\u4e0d\u65ad\u5730\u4ece\u5957\u63a5\u5b57\u8bfb\u53d6\u6570\u636e，\u5e76\u6839\u636e\u5206\u9694\u7b26\u6765\u5206\u5272\u6d88\u606f\u3002\u8fd9\u4e2a\u8fc7\u7a0b\u4e00\u822c\u5305\u542b\u4ee5\u4e0b\u6b65\u9aa4： 1. \u4ece\u5957\u63a5\u5b57\u4e2d\u8bfb\u53d6\u6570\u636e\u5230\u7f13\u51b2\u533a\u3002 2. \u5728\u7f13\u51b2\u533a\u4e2d\u67e5\u627e\u5206\u9694\u7b26\u3002 3. \u5f53\u627e\u5230\u5206\u9694\u7b26\u65f6，\u63d0\u53d6\u5206\u9694\u7b26\u524d\u7684\u6570\u636e\u4f5c\u4e3a\u4e00\u6761\u5b8c\u6574\u7684\u6d88\u606f\u3002 4. \u5982\u679c\u6570\u636e\u4e2d\u6ca1\u6709\u5206\u9694\u7b26，\u9700\u8981\u7ee7\u7eed\u8bfb\u53d6\u6570\u636e，\u76f4\u5230\u627e\u5230\u5206\u9694\u7b26\u4e3a\u6b62\u3002 <\/p>\n
\u4ee5\u4e0b\u662f\u5bf9\u5e94\u7684C++\u4f2a\u4ee3\u7801： <\/p>\n
void ReceiveDataWithDelimiter(SOCKET sock) {
\n const int bufferSize = 1024;
\n char buffer[bufferSize];
\n while (true) {
\n int bytesRead = recv(sock, buffer, bufferSize – 1, 0);
\n buffer[bytesRead] = '\\\\0';
\n char* pos = buffer;
\n char* end = buffer + bytesRead;
\n while (pos < end) {
\n \/\/ \u67e5\u627e\u5206\u9694\u7b26
\n pos = (char*)memchr(pos, delimiter, end – pos);
\n if (pos != NULL) {
\n \/\/ \u5904\u7406\u6d88\u606f
\n ProcessMessage(buffer, pos – buffer);
\n \/\/ \u79fb\u52a8\u6307\u9488\u5230\u5206\u9694\u7b26\u4e4b\u540e
\n pos++;
\n } else {
\n \/\/ \u5982\u679c\u6ca1\u6709\u627e\u5230\u5206\u9694\u7b26，\u5c06\u5269\u4f59\u7684\u6570\u636e\u7559\u5f85\u4e0b\u4e00\u6b21\u5904\u7406
\n break;
\n }
\n }
\n if (pos == end) {
\n \/\/ \u68c0\u67e5\u662f\u5426\u9700\u8981\u5faa\u73af\u8bfb\u53d6
\n continue;
\n } else {
\n \/\/ \u5904\u7406\u5269\u4f59\u7684\u6570\u636e
\n ProcessMessage(buffer, pos – buffer);
\n break;
\n }
\n }
\n}<\/p>\n
\u5206\u9694\u7b26\u6cd5\u7531\u4e8e\u5176\u5b9e\u73b0\u7b80\u5355，\u6613\u4e8e\u7406\u89e3\u548c\u90e8\u7f72，\u5728\u8bb8\u591a\u5c0f\u578b\u6216\u5bf9\u6027\u80fd\u8981\u6c42\u4e0d\u9ad8\u7684\u573a\u5408\u5f97\u5230\u5e7f\u6cdb\u5e94\u7528\u3002\u5b83\u7684\u4f18\u70b9\u5305\u62ec： – \u6613\u4e8e\u5b9e\u73b0：\u4e0d\u9700\u8981\u590d\u6742\u7684\u7b97\u6cd5，\u5bb9\u6613\u7f16\u5199\u548c\u7ef4\u62a4\u3002 – \u901a\u7528\u6027\u597d：\u53ef\u4ee5\u9002\u7528\u4e8e\u5404\u79cd\u4e0d\u540c\u7c7b\u578b\u7684\u6570\u636e\u5305\u3002 – \u5f00\u9500\u76f8\u5bf9\u8f83\u5c0f：\u5206\u9694\u7b26\u7684\u957f\u5ea6\u901a\u5e38\u5f88\u77ed，\u989d\u5916\u5f00\u9500\u53ef\u63a7\u3002 <\/p>\n
\u5c3d\u7ba1\u6709\u8bf8\u591a\u4f18\u70b9，\u5206\u9694\u7b26\u6cd5\u4e5f\u5b58\u5728\u4e00\u4e9b\u5c40\u9650\u6027： – \u9700\u8981\u7cbe\u5fc3\u9009\u62e9\u5206\u9694\u7b26：\u5982\u679c\u5206\u9694\u7b26\u5728\u6570\u636e\u4e2d\u51fa\u73b0，\u4f1a\u5bfc\u81f4\u63a5\u6536\u7aef\u8bef\u5224\u6d88\u606f\u8fb9\u754c\u3002 – \u4e0d\u9002\u5408\u5927\u6570\u636e\u91cf\u4f20\u8f93：\u8fde\u7eed\u7684\u6570\u636e\u6d41\u4e2d\u5982\u679c\u5076\u7136\u51fa\u73b0\u4e86\u5206\u9694\u7b26，\u53ef\u80fd\u4f1a\u88ab\u9519\u8bef\u5730\u8bc6\u522b\u4e3a\u591a\u4e2a\u72ec\u7acb\u7684\u6d88\u606f\u3002 – \u8d44\u6e90\u6d88\u8017：\u5bf9\u4e8e\u957f\u5ea6\u4e0d\u4e00\u7684\u6d88\u606f，\u63a5\u6536\u7aef\u9700\u8981\u4e0d\u65ad\u5730\u8c03\u6574\u7f13\u51b2\u533a\u5927\u5c0f\u6765\u9002\u5e94\u65b0\u7684\u6570\u636e\u5305\u3002 <\/p>\n
\u56e0\u6b64，\u5728\u91c7\u7528\u5206\u9694\u7b26\u6cd5\u65f6，\u9700\u8981\u7279\u522b\u6ce8\u610f\u5206\u9694\u7b26\u7684\u9009\u53d6，\u5e76\u5bf9\u53ef\u80fd\u7684\u6570\u636e\u683c\u5f0f\u548c\u5185\u5bb9\u505a\u5145\u5206\u7684\u8bc4\u4f30\u3002 <\/p>\n
\u5728\u5904\u7406TCP\u901a\u4fe1\u65f6，\u62c6\u5305\u548c\u7c98\u5305\u95ee\u9898\u4e0d\u53ef\u907f\u514d\u3002\u7531\u4e8eTCP\u662f\u9762\u5411\u6d41\u7684\u534f\u8bae，\u56e0\u6b64\u5b83\u5e76\u4e0d\u4fdd\u8bc1\u53d1\u9001\u7684\u5b57\u8282\u6d41\u5728\u63a5\u6536\u7aef\u4f1a\u4ee5\u76f8\u540c\u7684\u65b9\u5f0f\u8fd8\u539f\u6210\u6d88\u606f\u3002\u4e3a\u4e86\u89e3\u51b3\u8fd9\u4e00\u95ee\u9898，\u5f00\u53d1\u8005\u901a\u5e38\u4f1a\u91c7\u7528\u6d88\u606f\u534f\u8bae\u6765\u7ba1\u7406\u6570\u636e\u5305\u7684\u8fb9\u754c\u3002\u6d88\u606f\u534f\u8bae\u80fd\u591f\u5e2e\u52a9\u5f00\u53d1\u8005\u66f4\u52a0\u5bb9\u6613\u5730\u5bf9\u6570\u636e\u8fdb\u884c\u7f16\u7801\u3001\u4f20\u8f93\u4ee5\u53ca\u89e3\u7801，\u786e\u4fdd\u6570\u636e\u7684\u5b8c\u6574\u6027\u548c\u987a\u5e8f\u6027\u3002 <\/p>\n
\u6d88\u606f\u534f\u8bae，\u7b80\u5355\u6765\u8bf4，\u662f\u4e00\u5957\u9884\u5148\u5b9a\u4e49\u597d\u7684\u6570\u636e\u683c\u5f0f\u548c\u5904\u7406\u89c4\u5219，\u5b83\u5141\u8bb8\u901a\u4fe1\u53cc\u65b9\u901a\u8fc7\u6570\u636e\u5305\u4ea4\u6362\u4fe1\u606f\u3002\u5728\u6d88\u606f\u534f\u8bae\u4e2d，\u6d88\u606f\u901a\u5e38\u7531\u6d88\u606f\u5934\u548c\u6d88\u606f\u4f53\u7ec4\u6210，\u5176\u4e2d\u6d88\u606f\u5934\u5305\u542b\u4e86\u5173\u952e\u7684\u63a7\u5236\u4fe1\u606f，\u5982\u6d88\u606f\u957f\u5ea6\u3001\u7c7b\u578b\u6807\u8bc6\u7b26\u3001\u7248\u672c\u53f7\u4ee5\u53ca\u5e8f\u5217\u53f7\u7b49，\u800c\u6d88\u606f\u4f53\u5219\u627f\u8f7d\u4e86\u5177\u4f53\u7684\u6570\u636e\u5185\u5bb9\u3002 <\/p>\n
HTTP ：\u5c3d\u7ba1HTTP\u534f\u8bae\u4e3b\u8981\u7528\u4e8eWeb\u670d\u52a1，\u4f46\u5176\u57fa\u4e8e\u6587\u672c\u7684\u683c\u5f0f，\u4f7f\u5f97\u8c03\u8bd5\u548c\u5f00\u53d1\u76f8\u5bf9\u5bb9\u6613\u3002HTTP\u534f\u8bae\u672c\u8eab\u5177\u6709\u826f\u597d\u7684\u8bf7\u6c42-\u54cd\u5e94\u673a\u5236，\u4ee5\u53ca\u4e25\u683c\u7684\u5934\u90e8\u5b57\u6bb5\u5b9a\u4e49\u3002 <\/p>\n<\/li>\n
FTP ：\u6587\u4ef6\u4f20\u8f93\u534f\u8bae（FTP）\u63d0\u4f9b\u4e86\u6570\u636e\u4f20\u8f93\u7684\u5b8c\u6574\u89c4\u8303，\u5305\u62ec\u63a7\u5236\u8fde\u63a5\u548c\u6570\u636e\u8fde\u63a5\u7684\u5efa\u7acb，\u4ee5\u53ca\u8eab\u4efd\u9a8c\u8bc1\u3001\u6587\u4ef6\u4f20\u8f93\u7b49\u547d\u4ee4\u548c\u54cd\u5e94\u683c\u5f0f\u3002 <\/p>\n<\/li>\n
MQTT ：\u6d88\u606f\u961f\u5217\u9065\u6d4b\u4f20\u8f93（MQTT）\u662f\u4e00\u79cd\u8f7b\u91cf\u7ea7\u7684\u6d88\u606f\u534f\u8bae，\u4e13\u6ce8\u4e8e\u8bbe\u5907\u7684\u4f4e\u5e26\u5bbd\u3001\u9ad8\u5ef6\u8fdf\u6216\u4e0d\u53ef\u9760\u7684\u7f51\u7edc\u73af\u5883\u4e2d\u8fdb\u884c\u6d88\u606f\u4f20\u8f93\u3002 <\/p>\n<\/li>\n
Google Protocol Buffers ：\u8fd9\u662f\u4e00\u79cd\u8de8\u8bed\u8a00\u3001\u8de8\u5e73\u53f0\u7684\u5e8f\u5217\u5316\u534f\u8bae，\u5b83\u7684\u6d88\u606f\u683c\u5f0f\u7d27\u51d1，\u66f4\u9002\u5408\u7f51\u7edc\u4f20\u8f93\u3002\u5b83\u4f7f\u7528\u4e00\u79cd\u53eb\u505a\u201cprotobuf\u201d\u7684\u8bed\u8a00\u6765\u5b9a\u4e49\u6570\u636e\u7ed3\u6784，\u7136\u540e\u901a\u8fc7\u7f16\u8bd1\u5668\u751f\u6210\u5e8f\u5217\u5316\u548c\u53cd\u5e8f\u5217\u5316\u7684\u4ee3\u7801\u3002 <\/p>\n<\/li>\n
XML-RPC ：\u4f7f\u7528XML\u7f16\u7801\u7684\u6570\u636e\u7ed3\u6784\u548cHTTP\u4f5c\u4e3a\u4f20\u8f93\u534f\u8bae\u7684\u8fdc\u7a0b\u8fc7\u7a0b\u8c03\u7528\u534f\u8bae\u3002\u5b83\u7684\u6d88\u606f\u683c\u5f0f\u4ee5\u4eba\u7c7b\u53ef\u8bfb\u7684XML\u683c\u5f0f\u7f16\u5199，\u6613\u4e8e\u9605\u8bfb\u548c\u7ef4\u62a4\u3002 <\/p>\n<\/li>\n
\u6d88\u606f\u957f\u5ea6\u5b57\u6bb5\u662f\u6d88\u606f\u534f\u8bae\u4e2d\u7528\u4e8e\u6307\u793a\u6d88\u606f\u4f53\u5927\u5c0f\u7684\u5fc5\u8981\u7ec4\u6210\u90e8\u5206\u3002\u5b83\u53ef\u4ee5\u662f\u4e00\u4e2a\u56fa\u5b9a\u5b57\u8282\u7684\u6570\u503c，\u4e5f\u53ef\u4ee5\u662f\u53d8\u957f\u7684\u6570\u503c\u8868\u793a\u3002\u63a5\u6536\u65b9\u901a\u8fc7\u8bfb\u53d6\u6d88\u606f\u957f\u5ea6\u5b57\u6bb5，\u53ef\u4ee5\u786e\u5b9a\u6d88\u606f\u7684\u8fb9\u754c，\u4ece\u800c\u8fdb\u884c\u6b63\u786e\u7684\u6d88\u606f\u5206\u5272\u548c\u89e3\u6790\u3002 <\/p>\n
\u6d88\u606f\u7c7b\u578b\u6807\u8bc6\u7b26\u662f\u7528\u4e8e\u533a\u5206\u6d88\u606f\u79cd\u7c7b\u7684\u5b57\u6bb5，\u5141\u8bb8\u63a5\u6536\u65b9\u6839\u636e\u4e0d\u540c\u7684\u6d88\u606f\u7c7b\u578b\u6267\u884c\u4e0d\u540c\u7684\u5904\u7406\u903b\u8f91\u3002\u4f8b\u5982，\u5728\u8fdc\u7a0b\u8fc7\u7a0b\u8c03\u7528\u4e2d，\u6d88\u606f\u7c7b\u578b\u53ef\u4ee5\u8868\u793a\u8bf7\u6c42\u3001\u54cd\u5e94\u3001\u9519\u8bef\u7b49\u591a\u79cd\u72b6\u6001\u3002 <\/p>\n
\u5728\u9009\u62e9\u6d88\u606f\u534f\u8bae\u65f6，\u9700\u8981\u8003\u8651\u7684\u56e0\u7d20\u5305\u62ec： <\/p>\n
\u7f51\u7edc\u5e26\u5bbd\u548c\u5ef6\u8fdf ：\u5728\u5e26\u5bbd\u8f83\u5c0f\u6216\u5ef6\u8fdf\u8f83\u5927\u7684\u7f51\u7edc\u73af\u5883\u4e0b，\u5e94\u5f53\u9009\u62e9\u66f4\u4e3a\u7d27\u51d1\u7684\u4e8c\u8fdb\u5236\u534f\u8bae，\u4ee5\u51cf\u5c11\u6570\u636e\u4f20\u8f93\u91cf\u3002 <\/p>\n<\/li>\n
\u5f00\u53d1\u8bed\u8a00\u548c\u73af\u5883 ：\u9009\u62e9\u4e0e\u9879\u76ee\u5f00\u53d1\u8bed\u8a00\u548c\u73af\u5883\u517c\u5bb9\u826f\u597d\u7684\u6d88\u606f\u534f\u8bae\u3002 <\/p>\n<\/li>\n
\u5b89\u5168\u6027\u9700\u6c42 ：\u5982\u679c\u901a\u4fe1\u9700\u8981\u4fdd\u8bc1\u6570\u636e\u7684\u5b89\u5168\u6027，\u5e94\u9009\u62e9\u5185\u7f6e\u52a0\u5bc6\u548c\u8ba4\u8bc1\u673a\u5236\u7684\u6d88\u606f\u534f\u8bae\u3002 <\/p>\n<\/li>\n
\u53ef\u6269\u5c55\u6027 ：\u534f\u8bae\u5e94\u5177\u5907\u826f\u597d\u7684\u53ef\u6269\u5c55\u6027，\u4ee5\u4fbf\u4e8e\u540e\u671f\u6839\u636e\u9700\u6c42\u589e\u52a0\u65b0\u7684\u529f\u80fd\u3002 <\/p>\n<\/li>\n
\u8bb8\u591a\u5f00\u53d1\u6846\u67b6\u548c\u5de5\u5177\u90fd\u63d0\u4f9b\u4e86\u5185\u7f6e\u6216\u53ef\u9009\u7684\u6d88\u606f\u534f\u8bae\u652f\u6301\u3002\u4f8b\u5982，\u4f7f\u7528Java\u5f00\u53d1\u65f6\u53ef\u4ee5\u8003\u8651\u4f7f\u7528Apache Thrift\u6216Google Protocol Buffers；\u800c\u5728\u4f7f\u7528Python\u65f6，\u5219\u53ef\u4ee5\u9009\u62e9MessagePack\u6216Apache Avro\u3002\u8fd9\u4e9b\u6846\u67b6\u548c\u5de5\u5177\u4e0d\u4ec5\u63d0\u4f9b\u4e86\u534f\u8bae\u7684\u5b9e\u73b0，\u8fd8\u53ef\u80fd\u63d0\u4f9b\u4e86\u4ee3\u7801\u751f\u6210\u5de5\u5177\u3001\u6570\u636e\u5e8f\u5217\u5316\u548c\u53cd\u5e8f\u5217\u5316\u7684\u652f\u6301，\u6781\u5927\u5730\u51cf\u5c11\u4e86\u5f00\u53d1\u5de5\u4f5c\u91cf\u3002 <\/p>\n
\u6d88\u606f\u534f\u8bae\u901a\u8fc7\u4e3a\u6570\u636e\u6dfb\u52a0\u660e\u786e\u7684\u7ed3\u6784\u548c\u683c\u5f0f，\u4f7f\u5f00\u53d1\u8005\u53ef\u4ee5\u51c6\u786e\u5730\u5904\u7406\u62c6\u5305\u7c98\u5305\u95ee\u9898，\u786e\u4fdd\u6570\u636e\u4f20\u8f93\u7684\u53ef\u9760\u6027\u3002\u5728\u8bbe\u8ba1\u548c\u5b9e\u73b0\u6d88\u606f\u534f\u8bae\u65f6，\u5f00\u53d1\u8005\u5e94\u5f53\u7efc\u5408\u8003\u8651\u5b9e\u9645\u7684\u5e94\u7528\u573a\u666f\u3001\u6027\u80fd\u9700\u6c42\u548c\u5b89\u5168\u6027\u8981\u6c42，\u9009\u62e9\u6216\u8bbe\u8ba1\u6700\u9002\u5408\u7684\u534f\u8bae\u65b9\u6848\u3002 <\/p>\n
\u7f13\u51b2\u533a（Buffer）\u662f\u8ba1\u7b97\u673a\u7cfb\u7edf\u4e2d\u7528\u4e8e\u4e34\u65f6\u5b58\u50a8\u6570\u636e\u7684\u533a\u57df\u3002\u5728\u6570\u636e\u901a\u4fe1\u9886\u57df，\u7f13\u51b2\u533a\u7684\u4e3b\u8981\u529f\u80fd\u662f\u6682\u5b58\u4ece\u4e00\u7aef\u53d1\u9001\u7684\u6570\u636e，\u76f4\u5230\u53e6\u4e00\u7aef\u51c6\u5907\u63a5\u6536\u3002\u8be5\u6280\u672f\u5728\u5904\u7406\u62c6\u5305\u7c98\u5305\u95ee\u9898\u65f6\u5c24\u4e3a\u5173\u952e，\u56e0\u4e3a\u5b83\u53ef\u4ee5\u5e2e\u52a9\u6211\u4eec\u7f13\u51b2\u548c\u5904\u7406\u90a3\u4e9b\u5728\u7f51\u7edc\u4f20\u8f93\u4e2d\u4e0d\u5b8c\u6574\u6216\u975e\u9884\u671f\u7684\u6570\u636e\u5305\u3002 <\/p>\n
\u7f13\u51b2\u533a\u7684\u7c7b\u578b\u53ef\u4ee5\u662f\u786c\u4ef6\u7f13\u51b2\u533a，\u4e5f\u53ef\u4ee5\u662f\u8f6f\u4ef6\u7f13\u51b2\u533a\u3002\u786c\u4ef6\u7f13\u51b2\u533a\u901a\u5e38\u6307\u7684\u662f\u7279\u5b9a\u786c\u4ef6\u8bbe\u5907\u4e0a\u96c6\u6210\u7684\u5b58\u50a8\u533a\u57df，\u800c\u8f6f\u4ef6\u7f13\u51b2\u533a\u5219\u662f\u5728\u64cd\u4f5c\u7cfb\u7edf\u4e2d，\u6216\u5728\u5e94\u7528\u7a0b\u5e8f\u4e2d\u521b\u5efa\u7684\u7528\u4e8e\u6570\u636e\u4e2d\u8f6c\u7684\u5185\u5b58\u533a\u57df\u3002\u5728TCP\/IP\u901a\u4fe1\u4e2d，\u6211\u4eec\u901a\u5e38\u5173\u6ce8\u7684\u662f\u8f6f\u4ef6\u7f13\u51b2\u533a\u3002 <\/p>\n
\u7f13\u51b2\u533a\u7ba1\u7406\u662f\u7f51\u7edc\u7f16\u7a0b\u4e2d\u7684\u4e00\u4e2a\u91cd\u8981\u65b9\u9762，\u7279\u522b\u662f\u5728\u9700\u8981\u5904\u7406\u5927\u91cf\u6570\u636e\u65f6\u3002\u4e00\u4e2a\u9ad8\u6548\u7684\u7f13\u51b2\u533a\u7ba1\u7406\u7b56\u7565\u80fd\u591f\u6709\u6548\u51cf\u5c11\u5185\u5b58\u7684\u4f7f\u7528，\u63d0\u5347\u6570\u636e\u5904\u7406\u7684\u6548\u7387，\u540c\u65f6\u4e5f\u80fd\u591f\u63d0\u9ad8\u7cfb\u7edf\u7684\u7a33\u5b9a\u6027\u3002 <\/p>\n
\u7f13\u51b2\u533a\u7ba1\u7406\u7b56\u7565\u5305\u62ec： – \u5206\u914d\u548c\u56de\u6536\u673a\u5236，\u5982\u4f55\u6709\u6548\u5730\u4e3a\u6570\u636e\u5305\u5206\u914d\u5185\u5b58，\u4ee5\u53ca\u5728\u6570\u636e\u5904\u7406\u540e\u5982\u4f55\u56de\u6536\u8fd9\u4e9b\u5185\u5b58\u3002 – \u5185\u5b58\u788e\u7247\u7684\u5904\u7406，\u907f\u514d\u5927\u91cf\u5c0f\u5757\u5185\u5b58\u7684\u4ea7\u751f\u5bfc\u81f4\u5185\u5b58\u4f7f\u7528\u6548\u7387\u964d\u4f4e\u3002 – \u6d41\u91cf\u63a7\u5236，\u9632\u6b62\u7f13\u51b2\u533a\u6ea2\u51fa\u6216\u7a7a\u95f2\u3002 – \u5e76\u53d1\u5904\u7406，\u786e\u4fdd\u5728\u591a\u7ebf\u7a0b\u73af\u5883\u4e0b\u7f13\u51b2\u533a\u6570\u636e\u7684\u4e00\u81f4\u6027\u548c\u5b8c\u6574\u6027\u3002 <\/p>\n
\u7f13\u51b2\u533a\u7ba1\u7406\u4e0d\u5f53\u4f1a\u5bfc\u81f4\u5404\u79cd\u95ee\u9898，\u5982\u5185\u5b58\u6cc4\u6f0f\u3001\u6027\u80fd\u4e0b\u964d\u3001\u6b7b\u9501\u751a\u81f3\u7cfb\u7edf\u5d29\u6e83\u3002\u56e0\u6b64，\u7406\u89e3\u5e76\u5b9e\u65bd\u4e00\u4e2a\u597d\u7684\u7f13\u51b2\u533a\u7ba1\u7406\u7b56\u7565\u5bf9\u4e8e\u63d0\u5347\u7f51\u7edc\u901a\u4fe1\u6548\u7387\u548c\u7cfb\u7edf\u7684\u7a33\u5b9a\u6027\u81f3\u5173\u91cd\u8981\u3002 <\/p>\n
\u73af\u5f62\u7f13\u51b2\u533a（Ring Buffer）\u662f\u4e00\u79cd\u5e38\u89c1\u7684\u7f13\u51b2\u533a\u7ba1\u7406\u65b9\u5f0f\u3002\u5b83\u662f\u7531\u4e00\u6bb5\u56fa\u5b9a\u5927\u5c0f\u7684\u8fde\u7eed\u5185\u5b58\u6784\u6210，\u53ef\u4ee5\u88ab\u770b\u4f5c\u662f\u4e00\u4e2a\u9996\u5c3e\u76f8\u63a5\u7684\u5faa\u73af\u961f\u5217\u3002\u73af\u5f62\u7f13\u51b2\u533a\u7684\u8bbe\u8ba1\u5141\u8bb8\u9ad8\u6548\u7684\u7f13\u51b2\u64cd\u4f5c，\u56e0\u4e3a\u5b83\u907f\u514d\u4e86\u6570\u636e\u7684\u79fb\u52a8，\u53ea\u9700\u66f4\u65b0\u8bfb\u5199\u6307\u9488\u5373\u53ef\u3002 <\/p>\n
\u73af\u5f62\u7f13\u51b2\u533a\u901a\u5e38\u7531\u4ee5\u4e0b\u51e0\u4e2a\u90e8\u5206\u6784\u6210： – \u6570\u636e\u5b58\u50a8\u533a ：\u7528\u4e8e\u5b9e\u9645\u5b58\u50a8\u6570\u636e\u7684\u8fde\u7eed\u5185\u5b58\u5757\u3002 – \u5199\u6307\u9488（Write Pointer） ：\u6307\u793a\u4e0b\u4e00\u4e2a\u5199\u5165\u4f4d\u7f6e\u3002 – \u8bfb\u6307\u9488（Read Pointer） ：\u6307\u793a\u4e0b\u4e00\u4e2a\u8bfb\u53d6\u4f4d\u7f6e\u3002 – \u7a7a\u95f2\u7a7a\u95f4\u8ba1\u6570 ：\u53ef\u7528\u7a7a\u95f4\u7684\u5927\u5c0f\u3002 – \u5df2\u4f7f\u7528\u7a7a\u95f4\u8ba1\u6570 ：\u5df2\u5b58\u50a8\u6570\u636e\u7684\u7a7a\u95f4\u5927\u5c0f\u3002 <\/p>\n
typedef struct RingBuffer {
\n char *buffer; \/\/ \u6307\u5411\u6570\u636e\u5b58\u50a8\u533a\u7684\u6307\u9488
\n size_t capacity; \/\/ \u7f13\u51b2\u533a\u7684\u603b\u5927\u5c0f
\n size_t writeIndex; \/\/ \u5199\u6307\u9488\u4f4d\u7f6e
\n size_t readIndex; \/\/ \u8bfb\u6307\u9488\u4f4d\u7f6e
\n size_t freeSpace; \/\/ \u53ef\u7528\u7a7a\u95f4\u5927\u5c0f
\n size_t usedSpace; \/\/ \u5df2\u4f7f\u7528\u7a7a\u95f4\u5927\u5c0f
\n} RingBuffer;<\/p>\n
\u521d\u59cb\u5316\u73af\u5f62\u7f13\u51b2\u533a\u65f6，\u9700\u8981\u8bbe\u7f6e\u597d\u521d\u59cb\u7684\u8bfb\u5199\u6307\u9488\u4ee5\u53ca\u8ba1\u7b97\u51fa\u521d\u59cb\u7684\u7a7a\u95f2\u548c\u5df2\u4f7f\u7528\u7a7a\u95f4\u8ba1\u6570\u3002\u5728\u5b9e\u9645\u64cd\u4f5c\u4e2d，\u5199\u5165\u6570\u636e\u65f6\u66f4\u65b0\u5199\u6307\u9488\u548c\u5df2\u4f7f\u7528\u7a7a\u95f4\u8ba1\u6570，\u8bfb\u53d6\u6570\u636e\u65f6\u66f4\u65b0\u8bfb\u6307\u9488\u548c\u7a7a\u95f2\u7a7a\u95f4\u8ba1\u6570\u3002 <\/p>\n
\/\/ \u73af\u5f62\u7f13\u51b2\u533a\u521d\u59cb\u5316\u51fd\u6570
\nvoid ringBufferInit(RingBuffer *rb, char *buffer, size_t capacity) {
\n rb->buffer = buffer;
\n rb->capacity = capacity;
\n rb->writeIndex = rb->readIndex = 0;
\n rb->freeSpace = rb->capacity;
\n rb->usedSpace = 0;
\n}<\/p>\n
\/\/ \u5199\u5165\u51fd\u6570
\nsize_t ringBufferWrite(RingBuffer *rb, const char *data, size_t size) {
\n size_t bytesToWrite = MIN(rb->freeSpace, size);
\n \/\/ … \u66f4\u65b0\u5199\u6307\u9488\u548c\u8ba1\u6570\u7b49
\n return bytesToWrite;
\n}<\/p>\n
\/\/ \u8bfb\u53d6\u51fd\u6570
\nsize_t ringBufferRead(RingBuffer *rb, char *data, size_t size) {
\n size_t bytesRead = MIN(rb->usedSpace, size);
\n \/\/ … \u66f4\u65b0\u8bfb\u6307\u9488\u548c\u8ba1\u6570\u7b49
\n return bytesRead;
\n}<\/p>\n
\u73af\u5f62\u7f13\u51b2\u533a\u5728\u5904\u7406TCP\u7c98\u5305\u548c\u62c6\u5305\u95ee\u9898\u65f6，\u53ef\u4ee5\u975e\u5e38\u65b9\u4fbf\u5730\u8bb0\u5f55\u54ea\u4e9b\u6570\u636e\u5df2\u7ecf\u88ab\u8bfb\u53d6，\u54ea\u4e9b\u6570\u636e\u8fd8\u5f85\u5904\u7406，\u4ece\u800c\u6709\u6548\u5730\u7ba1\u7406\u6570\u636e\u6d41\u3002 <\/p>\n
\u5728\u67d0\u4e9b\u573a\u666f\u4e0b，\u73af\u5f62\u7f13\u51b2\u533a\u7684\u56fa\u5b9a\u5927\u5c0f\u53ef\u80fd\u4e0d\u6ee1\u8db3\u9700\u6c42\u3002\u8fd9\u65f6，\u52a8\u6001\u7f13\u51b2\u533a（Dynamic Buffer）\u7b56\u7565\u663e\u5f97\u5c24\u4e3a\u91cd\u8981\u3002\u52a8\u6001\u7f13\u51b2\u533a\u53ef\u4ee5\u6839\u636e\u5b9e\u9645\u9700\u8981\u52a8\u6001\u5730\u589e\u52a0\u6216\u51cf\u5c11\u5176\u5bb9\u91cf，\u4ee5\u9002\u5e94\u4e0d\u540c\u7684\u6570\u636e\u6d41\u91cf\u3002 <\/p>\n
\u52a8\u6001\u7f13\u51b2\u533a\u7684\u5b9e\u73b0\u4f9d\u8d56\u4e8e\u5185\u5b58\u5206\u914d\u5668（\u5982malloc\/free）\u6765\u52a8\u6001\u5730\u8c03\u6574\u5185\u5b58\u5927\u5c0f\u3002\u4f7f\u7528\u52a8\u6001\u7f13\u51b2\u533a\u65f6，\u9700\u8981\u6ce8\u610f\u4ee5\u4e0b\u51e0\u70b9： – \u5185\u5b58\u6269\u5c55 ：\u5f53\u7f13\u51b2\u533a\u7a7a\u95f4\u4e0d\u8db3\u4ee5\u5bb9\u7eb3\u66f4\u591a\u6570\u636e\u65f6，\u9700\u8981\u6269\u5c55\u7f13\u51b2\u533a\u3002 – \u5185\u5b58\u6536\u7f29 ：\u5982\u679c\u7f13\u51b2\u533a\u8fc7\u5927\u5bfc\u81f4\u6d6a\u8d39，\u53ef\u4ee5\u9002\u5f53\u6536\u7f29\u5176\u5927\u5c0f\u3002 – \u5185\u5b58\u590d\u5236 ：\u5728\u6269\u5c55\u7f13\u51b2\u533a\u5927\u5c0f\u65f6，\u9700\u8981\u5c06\u65e7\u6570\u636e\u590d\u5236\u5230\u65b0\u7684\u5185\u5b58\u533a\u57df\u3002 <\/p>\n
typedef struct DynamicBuffer {
\n char *buffer;
\n size_t capacity;
\n size_t size; \/\/ \u5df2\u4f7f\u7528\u7684\u7f13\u51b2\u533a\u5927\u5c0f
\n} DynamicBuffer;<\/p>\n
\u521d\u59cb\u5316\u548c\u8c03\u6574\u52a8\u6001\u7f13\u51b2\u533a\u9700\u8981\u4ed4\u7ec6\u7ba1\u7406\u5185\u5b58，\u907f\u514d\u5185\u5b58\u6cc4\u6f0f\u3002\u5728C++\u4e2d，\u53ef\u4ee5\u4f7f\u7528\u667a\u80fd\u6307\u9488\u6765\u81ea\u52a8\u7ba1\u7406\u5185\u5b58，\u800c\u5728C\u8bed\u8a00\u4e2d，\u5219\u9700\u8981\u624b\u52a8\u7ba1\u7406\u3002 <\/p>\n
\/\/ \u52a8\u6001\u7f13\u51b2\u533a\u521d\u59cb\u5316\u51fd\u6570
\nvoid dynamicBufferInit(DynamicBuffer *db, size_t initialCapacity) {
\n db->buffer = (char *)malloc(initialCapacity);
\n db->capacity = initialCapacity;
\n db->size = 0;
\n}<\/p>\n
\/\/ \u52a8\u6001\u6269\u5c55\u7f13\u51b2\u533a\u51fd\u6570
\nvoid dynamicBufferExpand(DynamicBuffer *db, size_t newSize) {
\n char *newBuffer = (char *)realloc(db->buffer, newSize);
\n if (newBuffer == NULL) {
\n \/\/ \u5904\u7406\u5185\u5b58\u5206\u914d\u5931\u8d25\u7684\u60c5\u51b5
\n }
\n db->buffer = newBuffer;
\n db->capacity = newSize;
\n}<\/p>\n
\/\/ \u6570\u636e\u8bfb\u5199\u51fd\u6570\u7c7b\u4f3c\u73af\u5f62\u7f13\u51b2\u533a<\/p>\n
\u52a8\u6001\u7f13\u51b2\u533a\u63d0\u4f9b\u4e86\u66f4\u5927\u7684\u7075\u6d3b\u6027，\u4f46\u4e5f\u5f15\u5165\u4e86\u590d\u6742\u6027\u3002\u5728\u5b9e\u73b0\u65f6\u8981\u7279\u522b\u6ce8\u610f\u5185\u5b58\u7ba1\u7406，\u786e\u4fdd\u4e0d\u4f1a\u53d1\u751f\u5185\u5b58\u6cc4\u6f0f\u3002 <\/p>\n
\u4e3a\u4e86\u51cf\u5c11\u62c6\u5305\u548c\u7c98\u5305\u7684\u95ee\u9898，\u7f13\u51b2\u533a\u7ba1\u7406\u7b56\u7565\u9700\u8981\u4f18\u5316，\u4f7f\u5176\u9002\u5e94\u4e0d\u540c\u5927\u5c0f\u7684\u6570\u636e\u5305\u548c\u4e0d\u540c\u7684\u7f51\u7edc\u6d41\u91cf\u3002\u4f8b\u5982，\u53ef\u4ee5\u8bbe\u7f6e\u7f13\u51b2\u533a\u5927\u5c0f\u7684\u9608\u503c，\u5f53\u63a5\u6536\u5230\u7684\u6570\u636e\u8fbe\u5230\u8fd9\u4e2a\u9608\u503c\u65f6\u5c31\u8fdb\u884c\u5904\u7406，\u4ece\u800c\u51cf\u5c11\u7c98\u5305\u7684\u53ef\u80fd\u6027\u3002 <\/p>\n
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\u901a\u8fc7\u6d4b\u8bd5\u548c\u6bd4\u8f83\u4e0d\u540c\u4f18\u5316\u7b56\u7565\u524d\u540e\u7684\u6027\u80fd\u6307\u6807，\u53ef\u4ee5\u627e\u5230\u6700\u4f73\u7684\u7f13\u51b2\u533a\u7ba1\u7406\u65b9\u6cd5\u3002\u4f8b\u5982，\u4f7f\u7528\u52a8\u6001\u7f13\u51b2\u533a\u7b56\u7565\u901a\u5e38\u53ef\u4ee5\u5728\u5904\u7406\u975e\u56fa\u5b9a\u5927\u5c0f\u7684\u6570\u636e\u5305\u65f6\u66f4\u52a0\u7075\u6d3b，\u4f46\u53ef\u80fd\u4f1a\u5e26\u6765\u4e00\u5b9a\u7684\u6027\u80fd\u5f00\u9500\u3002\u73af\u5f62\u7f13\u51b2\u533a\u5219\u5728\u56fa\u5b9a\u5927\u5c0f\u6570\u636e\u5305\u7684\u573a\u666f\u4e0b\u8868\u73b0\u51fa\u8272\u3002 <\/p>\n
\u5728\u5b9e\u65bd\u7f13\u51b2\u533a\u7ba1\u7406\u7684\u4f18\u5316\u65f6，\u9700\u8981\u8003\u8651\u5230\u5b9e\u9645\u5e94\u7528\u573a\u666f\u7684\u5177\u4f53\u9700\u6c42，\u5305\u62ec\u7f51\u7edc\u73af\u5883\u3001\u6570\u636e\u5305\u5927\u5c0f\u5206\u5e03\u3001\u4e1a\u52a1\u5bf9\u5ef6\u8fdf\u548c\u541e\u5410\u91cf\u7684\u8981\u6c42\u7b49\u56e0\u7d20，\u4ece\u800c\u505a\u51fa\u6700\u5408\u9002\u7684\u4f18\u5316\u9009\u62e9\u3002 <\/p>\n
\u7f13\u51b2\u533a\u7ba1\u7406\u6280\u672f\u662f\u89e3\u51b3\u62c6\u5305\u548c\u7c98\u5305\u95ee\u9898\u7684\u5173\u952e\u73af\u8282\u3002\u901a\u8fc7\u5408\u7406\u7684\u7b56\u7565\u548c\u4f18\u5316，\u53ef\u4ee5\u663e\u8457\u63d0\u5347\u7f51\u7edc\u901a\u4fe1\u7684\u6548\u7387\u548c\u53ef\u9760\u6027\u3002\u63a5\u4e0b\u6765\u7684\u7ae0\u8282\u5c06\u63a2\u8ba8\u5728C++\u4e2d\u5982\u4f55\u5177\u4f53\u5b9e\u73b0\u8fd9\u4e9b\u7b56\u7565，\u5e76\u5206\u6790\u5728\u5b9e\u9645\u5f00\u53d1\u4e2d\u53ef\u80fd\u9047\u5230\u7684\u95ee\u9898\u548c\u89e3\u51b3\u65b9\u6848\u3002 <\/p>\n
\u5728C++\u4e2d，\u4f7f\u7528TCP\u8fdb\u884c\u7f51\u7edc\u901a\u4fe1\u65f6，\u9996\u5148\u9700\u8981\u521b\u5efa\u548c\u7ed1\u5b9a\u5957\u63a5\u5b57\u3002\u8fd9\u4e00\u8fc7\u7a0b\u901a\u5e38\u6d89\u53ca\u5230 socket \u51fd\u6570\u7684\u8c03\u7528\u4ee5\u53ca bind \u51fd\u6570\u7684\u4f7f\u7528\u3002\u5728\u8fd9\u4e00\u90e8\u5206，\u6211\u4eec\u5c06\u63a2\u8ba8\u5982\u4f55\u5728C++\u4e2d\u521b\u5efaTCP\u5957\u63a5\u5b57\u4ee5\u53ca\u7ed1\u5b9a\u5230\u6307\u5b9a\u7684IP\u5730\u5740\u548c\u7aef\u53e3\u3002 <\/p>\n
#include <iostream>
\n#include <sys\/socket.h>
\n#include <netinet\/in.h>
\n#include <unistd.h>
\n#include <arpa\/inet.h><\/p>\n
int main() {
\n int sock = socket(AF_INET, SOCK_STREAM, 0); \/\/ \u521b\u5efa\u5957\u63a5\u5b57<\/p>\n
if (sock < 0) {
\n std::cerr << "Failed to create socket" << std::endl;
\n return -1;
\n }<\/p>\n
struct sockaddr_in server_address;
\n server_address.sin_family = AF_INET; \/\/ \u4f7f\u7528IPv4\u5730\u5740
\n server_address.sin_addr.s_addr = INADDR_ANY; \/\/ \u81ea\u52a8\u83b7\u53d6IP\u5730\u5740
\n server_address.sin_port = htons(8080); \/\/ \u7aef\u53e3\u53f7<\/p>\n
if (bind(sock, (const struct sockaddr*)&server_address, sizeof(server_address)) < 0) {
\n std::cerr << "Bind failed" << std::endl;
\n close(sock);
\n return -1;
\n }<\/p>\n
\/\/ \u7ed1\u5b9a\u6210\u529f\u540e\u7684\u5176\u4ed6\u64cd\u4f5c…
\n}<\/p>\n
\u5728\u8fd9\u6bb5\u4ee3\u7801\u4e2d，\u9996\u5148\u8c03\u7528 socket \u51fd\u6570\u521b\u5efa\u4e86\u4e00\u4e2aTCP\u5957\u63a5\u5b57\u3002\u63a5\u7740\u5b9a\u4e49\u4e86\u4e00\u4e2a sockaddr_in \u7ed3\u6784\u4f53，\u7528\u6765\u6307\u5b9a\u5957\u63a5\u5b57\u7ed1\u5b9a\u7684IP\u5730\u5740\u548c\u7aef\u53e3\u53f7\u3002\u6700\u540e，\u901a\u8fc7 bind \u51fd\u6570\u5c06\u5957\u63a5\u5b57\u7ed1\u5b9a\u5230\u8fd9\u4e2a\u5730\u5740\u548c\u7aef\u53e3\u4e0a\u3002\u82e5\u7ed1\u5b9a\u6210\u529f，\u5957\u63a5\u5b57\u5c31\u53ef\u4ee5\u5f00\u59cb\u76d1\u542c\u6765\u81ea\u5ba2\u6237\u7aef\u7684\u8fde\u63a5\u8bf7\u6c42\u3002 <\/p>\n
\u4e00\u65e6\u5957\u63a5\u5b57\u88ab\u7ed1\u5b9a\u5230\u672c\u5730\u5730\u5740\u548c\u7aef\u53e3，\u670d\u52a1\u5668\u7aef\u7a0b\u5e8f\u901a\u5e38\u4f1a\u8fdb\u5165\u76d1\u542c\u72b6\u6001，\u7b49\u5f85\u5ba2\u6237\u7aef\u7684\u8fde\u63a5\u8bf7\u6c42\u3002\u8fd9\u4e00\u8fc7\u7a0b\u901a\u8fc7\u8c03\u7528 listen \u51fd\u6570\u6765\u5b8c\u6210\u3002\u5bf9\u4e8e\u5df2\u5efa\u7acb\u8fde\u63a5\u7684\u5957\u63a5\u5b57，\u9700\u8981\u901a\u8fc7 accept \u51fd\u6570\u6765\u63a5\u53d7\u5ba2\u6237\u7aef\u7684\u8fde\u63a5\u3002 <\/p>\n
\/\/ \u7ee7\u7eed\u4e0a\u4e00\u4ee3\u7801\u6bb5<\/p>\n
\/\/ \u5f00\u59cb\u76d1\u542c
\nif (listen(sock, 3) < 0) {
\n std::cerr << "Listen failed" << std::endl;
\n close(sock);
\n return -1;
\n}<\/p>\n
\/\/ \u7b49\u5f85\u5ba2\u6237\u7aef\u8fde\u63a5
\nstruct sockaddr_in client_address;
\nsocklen_t client_address_len = sizeof(client_address);<\/p>\n
int client_sock = accept(sock, (struct sockaddr*)&client_address, &client_address_len);
\nif (client_sock < 0) {
\n std::cerr << "Accept failed" << std::endl;
\n close(sock);
\n return -1;
\n}<\/p>\n
\/\/ \u4e0e\u5ba2\u6237\u7aef\u901a\u4fe1…<\/p>\n
\u5728\u4e0a\u8ff0\u4ee3\u7801\u4e2d，\u8c03\u7528 listen \u51fd\u6570\u4f7f\u5957\u63a5\u5b57\u8fdb\u5165\u76d1\u542c\u72b6\u6001，\u5e76\u8bbe\u7f6e\u4e86\u6700\u5927\u7b49\u5f85\u8fde\u63a5\u6570\u3002\u4e4b\u540e，\u4f7f\u7528 accept \u51fd\u6570\u7b49\u5f85\u5e76\u63a5\u53d7\u5ba2\u6237\u7aef\u7684\u8fde\u63a5\u8bf7\u6c42，\u8fd4\u56de\u4e00\u4e2a\u65b0\u7684\u5957\u63a5\u5b57\u7528\u4e8e\u540e\u7eed\u901a\u4fe1\u3002\u6210\u529f\u540e，\u670d\u52a1\u5668\u53ef\u4ee5\u4f7f\u7528 client_sock \u4e0e\u5ba2\u6237\u7aef\u8fdb\u884c\u6570\u636e\u7684\u53d1\u9001\u548c\u63a5\u6536\u3002 <\/p>\n
\u901a\u8fc7\u8fd9\u4e9b\u6b65\u9aa4，C++\u7a0b\u5e8f\u53ef\u4ee5\u521b\u5efa\u548c\u7ba1\u7406TCP\u5957\u63a5\u5b57，\u4ece\u800c\u5b9e\u73b0\u7f51\u7edc\u901a\u4fe1\u3002\u8fd9\u5bf9\u4e8e\u5904\u7406\u62c6\u5305\u7c98\u5305\u95ee\u9898\u6765\u8bf4\u662f\u57fa\u7840，\u56e0\u4e3a\u4efb\u4f55\u5bf9\u6570\u636e\u5305\u7684\u7ba1\u7406\u90fd\u9700\u8981\u5efa\u7acb\u5728\u6709\u6548\u7684\u5957\u63a5\u5b57\u901a\u4fe1\u4e4b\u4e0a\u3002\u63a5\u4e0b\u6765\u6211\u4eec\u5c06\u4ecb\u7ecd\u5982\u4f55\u5728C++\u4e2d\u5904\u7406\u62c6\u5305\u7c98\u5305\u7684\u6280\u672f\u7ec6\u8282\u3002 <\/p>\n
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\u7f51\u7edc\u73af\u5883\u7684\u591a\u6837\u6027\u5bf9\u62c6\u5305\u7c98\u5305\u7684\u5904\u7406\u63d0\u51fa\u4e86\u66f4\u9ad8\u7684\u8981\u6c42\u3002\u4e0d\u540c\u7684\u7f51\u7edc\u73af\u5883\u53ef\u80fd\u4f1a\u5e26\u6765\u4e0d\u540c\u7684\u95ee\u9898\u548c\u6311\u6218\u3002 <\/p>\n
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\u968f\u7740\u7f51\u7edc\u653b\u51fb\u624b\u6bb5\u7684\u65e5\u76ca\u589e\u591a，\u5b89\u5168\u6027\u6210\u4e3a\u7f51\u7edc\u901a\u4fe1\u4e2d\u4e0d\u53ef\u6216\u7f3a\u7684\u4e00\u90e8\u5206\u3002\u5728\u8bbe\u8ba1\u6570\u636e\u4f20\u8f93\u534f\u8bae\u65f6，\u5fc5\u987b\u5c06\u5b89\u5168\u6027\u56e0\u7d20\u8003\u8651\u5728\u5185\u3002 <\/p>\n
\u4e3a\u4e86\u9632\u6b62\u6570\u636e\u5728\u4f20\u8f93\u8fc7\u7a0b\u4e2d\u88ab\u7a83\u542c\u6216\u7be1\u6539，\u5fc5\u987b\u5b9e\u73b0\u5f3a\u5927\u7684\u52a0\u5bc6\u548c\u89e3\u5bc6\u673a\u5236\u3002\u8fd9\u901a\u5e38\u6d89\u53ca\u5230\u4f7f\u7528\u5404\u79cd\u52a0\u5bc6\u7b97\u6cd5\u548c\u5bc6\u94a5\u7ba1\u7406\u7b56\u7565，\u5982SSL\/TLS\u534f\u8bae\u3002\u5728\u8bbe\u8ba1\u52a0\u5bc6\u548c\u89e3\u5bc6\u673a\u5236\u65f6，\u8fd8\u9700\u8981\u5e73\u8861\u52a0\u5bc6\u5f3a\u5ea6\u548c\u6027\u80fd\u5f00\u9500，\u4ee5\u786e\u4fdd\u5e94\u7528\u7684\u54cd\u5e94\u901f\u5ea6\u548c\u6570\u636e\u5b89\u5168\u6027\u3002 <\/p>\n
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