{"id":134621,"date":"2024-10-31T01:41:20","date_gmt":"2024-10-30T17:41:20","guid":{"rendered":"https:\/\/server.hk\/cnblog\/134621\/"},"modified":"2024-10-31T01:41:20","modified_gmt":"2024-10-30T17:41:20","slug":"redis%e6%ba%90%e7%a2%bc%e7%b0%a1%e6%bd%94%e5%bc%b7%e5%a4%a7%e7%9a%84%e5%b0%8d%e8%b1%a1%e7%b3%bb%e7%b5%b1%ef%bc%88redis%e6%ba%90%e7%a2%bc%e5%b0%8d%e8%b1%a1%e7%b3%bb%e7%b5%b1%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/134621\/","title":{"rendered":"Redis\u6e90\u78bc\u7c21\u6f54\u5f37\u5927\u7684\u5c0d\u8c61\u7cfb\u7d71\uff08redis\u6e90\u78bc\u5c0d\u8c61\u7cfb\u7d71\uff09"},"content":{"rendered":"

Redis\u6e90\u78bc\u7c21\u6f54\u5f37\u5927\u7684\u5c0d\u8c61\u7cfb\u7d71\uff08redis\u6e90\u78bc\u5c0d\u8c61\u7cfb\u7d71\uff09<\/h1>\n

Redis\u662f\u4e00\u500b\u958b\u6e90\u7684\u9ad8\u6027\u80fd\u9375\u503c\u6578\u64da\u5eab\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u5404\u7a2e\u5834\u666f\u4e2d\uff0c\u5982\u7de9\u5b58\u3001\u6d88\u606f\u968a\u5217\u548c\u6578\u64da\u6301\u4e45\u5316\u7b49\u3002\u5176\u6e90\u78bc\u4e2d\u7684\u5c0d\u8c61\u7cfb\u7d71\u8a2d\u8a08\u7c21\u6f54\u800c\u5f37\u5927\uff0c\u70ba\u958b\u767c\u8005\u63d0\u4f9b\u4e86\u9748\u6d3b\u7684\u6578\u64da\u7d50\u69cb\u548c\u9ad8\u6548\u7684\u64cd\u4f5c\u65b9\u5f0f\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0eRedis\u7684\u5c0d\u8c61\u7cfb\u7d71\uff0c\u5206\u6790\u5176\u8a2d\u8a08\u7406\u5ff5\u53ca\u5be6\u73fe\u65b9\u5f0f\u3002<\/p>\n

Redis\u5c0d\u8c61\u7cfb\u7d71\u6982\u8ff0<\/h2>\n

\u5728Redis\u7684\u6e90\u78bc\u4e2d\uff0c\u5c0d\u8c61\u7cfb\u7d71\u662f\u5176\u6838\u5fc3\u7d44\u4ef6\u4e4b\u4e00\u3002Redis\u4e2d\u7684\u6bcf\u4e00\u500b\u6578\u64da\u7d50\u69cb\uff08\u5982\u5b57\u7b26\u4e32\u3001\u5217\u8868\u3001\u96c6\u5408\u7b49\uff09\u90fd\u88ab\u5c01\u88dd\u70ba\u4e00\u500b\u5c0d\u8c61\u3002\u9019\u4e9b\u5c0d\u8c61\u4e0d\u50c5\u5305\u542b\u6578\u64da\u672c\u8eab\uff0c\u9084\u5305\u542b\u4e86\u6578\u64da\u7684\u985e\u578b\u548c\u5176\u4ed6\u5143\u6578\u64da\u3002\u9019\u7a2e\u8a2d\u8a08\u4f7f\u5f97Redis\u80fd\u5920\u9748\u6d3b\u5730\u8655\u7406\u4e0d\u540c\u985e\u578b\u7684\u6578\u64da\uff0c\u4e26\u63d0\u4f9b\u9ad8\u6548\u7684\u64cd\u4f5c\u63a5\u53e3\u3002<\/p>\n

\u5c0d\u8c61\u7d50\u69cb<\/h2>\n

Redis\u5c0d\u8c61\u7684\u57fa\u672c\u7d50\u69cb\u5982\u4e0b\uff1a<\/p>\n

\ntypedef struct redisObject {\n    unsigned type:4;      \/\/ \u5c0d\u8c61\u985e\u578b\n    unsigned encoding:4;  \/\/ \u7de8\u78bc\u65b9\u5f0f\n    unsigned refcount;    \/\/ \u5f15\u7528\u8a08\u6578\n    void *ptr;            \/\/ \u6307\u5411\u6578\u64da\u7684\u6307\u91dd\n} robj;\n<\/code><\/pre>\n
\u5728\u9019\u500b\u7d50\u69cb\u4e2d\uff0ctype<\/code>\u5b57\u6bb5\u7528\u65bc\u6a19\u8b58\u5c0d\u8c61\u7684\u985e\u578b\uff0c\u4f8b\u5982\u5b57\u7b26\u4e32\u3001\u5217\u8868\u3001\u96c6\u5408\u7b49\uff1bencoding<\/code>\u5b57\u6bb5\u5247\u7528\u65bc\u6307\u793a\u6578\u64da\u7684\u7de8\u78bc\u65b9\u5f0f\uff0c\u5982RAW\u3001INT\u7b49\uff1brefcount<\/code>\u7528\u65bc\u7ba1\u7406\u5c0d\u8c61\u7684\u5f15\u7528\u8a08\u6578\uff0c\u78ba\u4fdd\u5167\u5b58\u7684\u6709\u6548\u7ba1\u7406\uff1bptr<\/code>\u5247\u662f\u6307\u5411\u5be6\u969b\u6578\u64da\u7684\u6307\u91dd\u3002<\/p>\n
\u5c0d\u8c61\u7684\u5275\u5efa\u8207\u7ba1\u7406<\/h2>\n
Redis\u63d0\u4f9b\u4e86\u4e00\u7cfb\u5217\u51fd\u6578\u4f86\u5275\u5efa\u548c\u7ba1\u7406\u5c0d\u8c61\u3002\u4ee5\u4e0b\u662f\u5275\u5efa\u5b57\u7b26\u4e32\u5c0d\u8c61\u7684\u793a\u4f8b\uff1a<\/p>\n
\nrobj *createStringObject(const char *ptr, size_t len) {\n    robj *o = zmalloc(sizeof(robj));\n    o->type = REDIS_STRING;\n    o->encoding = REDIS_ENCODING_RAW;\n    o->ptr = sdsnewlen(ptr, len);\n    o->refcount = 1;\n    return o;\n}\n<\/code><\/pre>\n
\u5728\u9019\u500b\u51fd\u6578\u4e2d\uff0c\u9996\u5148\u5206\u914d\u4e86\u4e00\u500brobj<\/code>\u7d50\u69cb\u7684\u5167\u5b58\uff0c\u7136\u5f8c\u8a2d\u7f6e\u5c0d\u8c61\u7684\u985e\u578b\u548c\u7de8\u78bc\uff0c\u6700\u5f8c\u4f7f\u7528sdsnewlen<\/code>\u51fd\u6578\u5275\u5efa\u4e00\u500b\u65b0\u7684\u5b57\u7b26\u4e32\u6578\u64da\u4e26\u5c07\u5176\u6307\u91dd\u8ce6\u503c\u7d66ptr<\/code>\u3002<\/p>\n
\u5c0d\u8c61\u7684\u64cd\u4f5c<\/h2>\n
Redis\u7684\u5c0d\u8c61\u7cfb\u7d71\u9084\u63d0\u4f9b\u4e86\u591a\u7a2e\u64cd\u4f5c\u5c0d\u8c61\u7684\u51fd\u6578\uff0c\u4f8b\u5982\u589e\u52a0\u5f15\u7528\u8a08\u6578\u3001\u91cb\u653e\u5c0d\u8c61\u7b49\u3002\u4ee5\u4e0b\u662f\u589e\u52a0\u5f15\u7528\u8a08\u6578\u7684\u793a\u4f8b\uff1a<\/p>\n
\nvoid incrRefCount(robj *o) {\n    o->refcount++;\n}\n<\/code><\/pre>\n
\u9019\u500b\u51fd\u6578\u7c21\u55ae\u5730\u5c07\u5c0d\u8c61\u7684\u5f15\u7528\u8a08\u6578\u52a0\u4e00\uff0c\u78ba\u4fdd\u5728\u591a\u500b\u5730\u65b9\u4f7f\u7528\u540c\u4e00\u5c0d\u8c61\u6642\u4e0d\u6703\u610f\u5916\u91cb\u653e\u5167\u5b58\u3002<\/p>\n
\u5c0d\u8c61\u7684\u7de8\u78bc<\/h2>\n
Redis\u652f\u6301\u591a\u7a2e\u7de8\u78bc\u65b9\u5f0f\uff0c\u4ee5\u63d0\u9ad8\u6027\u80fd\u548c\u7bc0\u7701\u5167\u5b58\u3002\u4f8b\u5982\uff0c\u5c0d\u65bc\u5c0f\u6574\u6578\uff0cRedis\u6703\u4f7f\u7528\u6574\u6578\u7de8\u78bc\u4f86\u7bc0\u7701\u7a7a\u9593\u3002\u7576\u5c0d\u8c61\u7684\u5927\u5c0f\u8d85\u904e\u4e00\u5b9a\u9650\u5236\u6642\uff0cRedis\u6703\u81ea\u52d5\u5c07\u5176\u8f49\u63db\u70ba\u66f4\u9ad8\u6548\u7684\u7de8\u78bc\u65b9\u5f0f\u3002\u9019\u7a2e\u9748\u6d3b\u7684\u7de8\u78bc\u7b56\u7565\u4f7f\u5f97Redis\u5728\u8655\u7406\u4e0d\u540c\u985e\u578b\u7684\u6578\u64da\u6642\u80fd\u5920\u4fdd\u6301\u9ad8\u6548\u3002<\/p>\n
\u7e3d\u7d50<\/h2>\n
Redis\u7684\u5c0d\u8c61\u7cfb\u7d71\u4ee5\u5176\u7c21\u6f54\u800c\u5f37\u5927\u7684\u8a2d\u8a08\uff0c\u70ba\u958b\u767c\u8005\u63d0\u4f9b\u4e86\u9748\u6d3b\u7684\u6578\u64da\u7d50\u69cb\u548c\u9ad8\u6548\u7684\u64cd\u4f5c\u65b9\u5f0f\u3002\u901a\u904e\u5c0d\u8c61\u7684\u5c01\u88dd\uff0cRedis\u80fd\u5920\u6709\u6548\u5730\u7ba1\u7406\u5167\u5b58\u4e26\u63d0\u9ad8\u6027\u80fd\u3002\u7121\u8ad6\u662f\u5728\u7de9\u5b58\u9084\u662f\u6578\u64da\u6301\u4e45\u5316\u65b9\u9762\uff0cRedis\u90fd\u5c55\u73fe\u4e86\u5176\u5353\u8d8a\u7684\u80fd\u529b\u3002\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684\u6578\u64da\u5b58\u5132\u89e3\u6c7a\u65b9\u6848\uff0c\u8003\u616e\u4f7f\u7528\u9999\u6e2fVPS<\/a>\u4f86\u90e8\u7f72Redis\uff0c\u5c07\u70ba\u60a8\u7684\u61c9\u7528\u63d0\u4f9b\u7a69\u5b9a\u7684\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u63a2\u7d22Redis\u6e90\u78bc\u4e2d\u7684\u7c21\u6f54\u5f37\u5927\u5c0d\u8c61\u7cfb\u7d71\uff0c\u4e86\u89e3\u5176\u9ad8\u6548\u6027\u80fd\u548c\u9748\u6d3b\u6027\uff0c\u52a9\u529b\u958b\u767c\u8005\u63d0\u5347\u61c9\u7528\u6548\u80fd\u3002<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-134621","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/134621","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"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=134621"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/134621\/revisions"}],"predecessor-version":[{"id":134622,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/134621\/revisions\/134622"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=134621"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=134621"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=134621"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}