{"id":59701,"date":"2024-10-13T00:05:15","date_gmt":"2024-10-12T16:05:15","guid":{"rendered":"https:\/\/server.hk\/cnblog\/59701\/"},"modified":"2024-10-13T00:05:15","modified_gmt":"2024-10-12T16:05:15","slug":"c%e8%aa%9e%e8%a8%80%e5%96%ae%e4%be%8b%e6%95%b8%e6%93%9a%e5%ba%ab%e5%84%aa%e5%8c%96%e4%bb%a3%e7%a2%bc%e6%95%88%e7%8e%87%e3%80%81%e6%8f%90%e5%8d%87%e6%80%a7%e8%83%bd-c%e5%96%ae%e4%be%8b%e6%95%b8","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/59701\/","title":{"rendered":"C\u8a9e\u8a00\u55ae\u4f8b\u6578\u64da\u5eab\u512a\u5316\u4ee3\u78bc\u6548\u7387\u3001\u63d0\u5347\u6027\u80fd (c\u55ae\u4f8b\u6578\u64da\u5eab)"},"content":{"rendered":"

C\u8a9e\u8a00\u55ae\u4f8b\u6578\u64da\u5eab\u512a\u5316\u4ee3\u78bc\u6548\u7387\u3001\u63d0\u5347\u6027\u80fd (C\u55ae\u4f8b\u6578\u64da\u5eab)<\/h1>\n

\u5728\u7576\u4eca\u7684\u8edf\u4ef6\u958b\u767c\u4e2d\uff0c\u6578\u64da\u5eab\u7684\u6027\u80fd\u5c0d\u65bc\u61c9\u7528\u7a0b\u5e8f\u7684\u6574\u9ad4\u6548\u7387\u81f3\u95dc\u91cd\u8981\u3002\u7279\u5225\u662f\u5728\u4f7f\u7528C\u8a9e\u8a00\u958b\u767c\u7684\u61c9\u7528\u4e2d\uff0c\u5982\u4f55\u6709\u6548\u5730\u7ba1\u7406\u6578\u64da\u5eab\u9023\u63a5\u548c\u64cd\u4f5c\uff0c\u6210\u70ba\u4e86\u958b\u767c\u8005\u9700\u8981\u9762\u5c0d\u7684\u4e00\u500b\u6311\u6230\u3002\u672c\u6587\u5c07\u63a2\u8a0eC\u8a9e\u8a00\u4e2d\u7684\u55ae\u4f8b\u6578\u64da\u5eab\u6a21\u5f0f\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u512a\u5316\u4ee3\u78bc\u6548\u7387\u548c\u63d0\u5347\u6027\u80fd\u7684\u7b56\u7565\u3002<\/p>\n

\u4ec0\u9ebc\u662f\u55ae\u4f8b\u6578\u64da\u5eab\u6a21\u5f0f\uff1f<\/h2>\n

\u55ae\u4f8b\u6a21\u5f0f\u662f\u4e00\u7a2e\u8a2d\u8a08\u6a21\u5f0f\uff0c\u78ba\u4fdd\u4e00\u500b\u985e\u53ea\u6709\u4e00\u500b\u5be6\u4f8b\uff0c\u4e26\u63d0\u4f9b\u4e00\u500b\u5168\u5c40\u8a2a\u554f\u9ede\u3002\u5728\u6578\u64da\u5eab\u64cd\u4f5c\u4e2d\uff0c\u55ae\u4f8b\u6a21\u5f0f\u53ef\u4ee5\u7528\u4f86\u7ba1\u7406\u6578\u64da\u5eab\u9023\u63a5\uff0c\u907f\u514d\u91cd\u8907\u5275\u5efa\u9023\u63a5\uff0c\u5f9e\u800c\u63d0\u9ad8\u6027\u80fd\u3002<\/p>\n

\u55ae\u4f8b\u6a21\u5f0f\u7684\u57fa\u672c\u5be6\u73fe<\/h3>\n
\n#include <stdio.h>\n#include <stdlib.h>\n#include <pthread.h>\n\ntypedef struct {\n    \/\/ \u6578\u64da\u5eab\u9023\u63a5\u7684\u5c6c\u6027\n    int connection;\n} Database;\n\nDatabase* instance = NULL;\npthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER;\n\nDatabase* getInstance() {\n    if (instance == NULL) {\n        pthread_mutex_lock(&mutex);\n        if (instance == NULL) {\n            instance = (Database*)malloc(sizeof(Database));\n            \/\/ \u521d\u59cb\u5316\u6578\u64da\u5eab\u9023\u63a5\n            instance->connection = 1; \/\/ \u5047\u8a2d1\u8868\u793a\u5df2\u9023\u63a5\n        }\n        pthread_mutex_unlock(&mutex);\n    }\n    return instance;\n}\n<\/code><\/pre>\n
\u4e0a\u8ff0\u4ee3\u78bc\u5c55\u793a\u4e86\u5982\u4f55\u5728C\u8a9e\u8a00\u4e2d\u5be6\u73fe\u4e00\u500b\u7c21\u55ae\u7684\u55ae\u4f8b\u6578\u64da\u5eab\u6a21\u5f0f\u3002\u4f7f\u7528\u4e92\u65a5\u9396\u4f86\u78ba\u4fdd\u7dda\u7a0b\u5b89\u5168\uff0c\u907f\u514d\u591a\u500b\u7dda\u7a0b\u540c\u6642\u5275\u5efa\u6578\u64da\u5eab\u5be6\u4f8b\u3002<\/p>\n
\u512a\u5316\u4ee3\u78bc\u6548\u7387\u7684\u7b56\u7565<\/h2>\n
1. \u9023\u63a5\u6c60\u7684\u4f7f\u7528<\/h3>\n
\u5728\u9ad8\u4e26\u767c\u7684\u74b0\u5883\u4e2d\uff0c\u983b\u7e41\u5730\u5275\u5efa\u548c\u92b7\u6bc0\u6578\u64da\u5eab\u9023\u63a5\u6703\u5c0e\u81f4\u6027\u80fd\u74f6\u9838\u3002\u4f7f\u7528\u9023\u63a5\u6c60\u53ef\u4ee5\u6709\u6548\u5730\u91cd\u7528\u5df2\u6709\u7684\u9023\u63a5\uff0c\u6e1b\u5c11\u958b\u92b7\u3002<\/p>\n
\n#define MAX_CONNECTIONS 10\n\ntypedef struct {\n    Database* connections[MAX_CONNECTIONS];\n    int count;\n} ConnectionPool;\n\nConnectionPool* createPool() {\n    ConnectionPool* pool = (ConnectionPool*)malloc(sizeof(ConnectionPool));\n    pool->count = 0;\n    for (int i = 0; i < MAX_CONNECTIONS; i++) {\n        pool->connections[i] = getInstance();\n    }\n    return pool;\n}\n<\/code><\/pre>\n
2. \u4f7f\u7528\u7de9\u5b58\u6280\u8853<\/h3>\n
\u5c0d\u65bc\u983b\u7e41\u67e5\u8a62\u7684\u6578\u64da\uff0c\u53ef\u4ee5\u8003\u616e\u4f7f\u7528\u7de9\u5b58\u6280\u8853\u3002\u5c07\u67e5\u8a62\u7d50\u679c\u5b58\u5132\u5728\u5167\u5b58\u4e2d\uff0c\u6e1b\u5c11\u5c0d\u6578\u64da\u5eab\u7684\u8a2a\u554f\u6b21\u6578\u3002<\/p>\n
\ntypedef struct {\n    int key;\n    int value;\n} CacheItem;\n\nCacheItem cache[MAX_CACHE_SIZE];\n\nint getFromCache(int key) {\n    for (int i = 0; i < MAX_CACHE_SIZE; i++) {\n        if (cache[i].key == key) {\n            return cache[i].value;\n        }\n    }\n    return -1; \/\/ \u672a\u627e\u5230\n}\n<\/code><\/pre>\n
3. \u512a\u5316\u67e5\u8a62\u8a9e\u53e5<\/h3>\n
\u5728\u9032\u884c\u6578\u64da\u5eab\u64cd\u4f5c\u6642\uff0c\u67e5\u8a62\u8a9e\u53e5\u7684\u6548\u7387\u76f4\u63a5\u5f71\u97ff\u6027\u80fd\u3002\u4f7f\u7528\u7d22\u5f15\u3001\u907f\u514d\u4e0d\u5fc5\u8981\u7684\u67e5\u8a62\u3001\u4ee5\u53ca\u9078\u64c7\u5408\u9069\u7684\u6578\u64da\u985e\u578b\u90fd\u662f\u512a\u5316\u67e5\u8a62\u7684\u6709\u6548\u65b9\u6cd5\u3002<\/p>\n
\u7d50\u8ad6<\/h2>\n
\u5728C\u8a9e\u8a00\u4e2d\u5be6\u73fe\u55ae\u4f8b\u6578\u64da\u5eab\u6a21\u5f0f\u4e0d\u50c5\u80fd\u5920\u63d0\u9ad8\u4ee3\u78bc\u7684\u53ef\u7dad\u8b77\u6027\uff0c\u9084\u80fd\u6709\u6548\u63d0\u5347\u6027\u80fd\u3002\u901a\u904e\u4f7f\u7528\u9023\u63a5\u6c60\u3001\u7de9\u5b58\u6280\u8853\u4ee5\u53ca\u512a\u5316\u67e5\u8a62\u8a9e\u53e5\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u986f\u8457\u6539\u5584\u61c9\u7528\u7a0b\u5e8f\u7684\u6578\u64da\u5eab\u64cd\u4f5c\u6548\u7387\u3002\u9019\u4e9b\u7b56\u7565\u4e0d\u50c5\u9069\u7528\u65bcC\u8a9e\u8a00\uff0c\u4e5f\u53ef\u4ee5\u61c9\u7528\u65bc\u5176\u4ed6\u7de8\u7a0b\u8a9e\u8a00\u7684\u6578\u64da\u5eab\u7ba1\u7406\u4e2d\u3002<\/p>\n
\u5982\u9700\u4e86\u89e3\u66f4\u591a\u95dc\u65bcVPS<\/code>\u3001\u9999\u6e2fVPS<\/code>\u53ca\u4f3a\u670d\u5668<\/code>\u7684\u8cc7\u8a0a\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9 Server.HK<\/a>\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u63a2\u7d22C\u8a9e\u8a00\u55ae\u4f8b\u6578\u64da\u5eab\u7684\u512a\u5316\u6280\u5de7\uff0c\u63d0\u5347\u4ee3\u78bc\u6548\u7387\u8207\u6027\u80fd\uff0c\u5be6\u73fe\u9ad8\u6548\u6578\u64da\u7ba1\u7406\u8207\u8655\u7406\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-59701","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/59701","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=59701"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/59701\/revisions"}],"predecessor-version":[{"id":59702,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/59701\/revisions\/59702"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=59701"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=59701"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=59701"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}