\u5728redis\u6e90\u7801\u4ecemain\u5f00\u59cb6\u4e2d\u770b\u5b8c\u4e86\u5ba2\u6237\u7aef\u53d1\u6765\u4e00\u4e2a\u547d\u4ee4\u5728redis\u4e2d\u7684\u6267\u884c\u6d41\u7a0b\uff0c\u672c\u7ae0\u6211\u4eec\u770b\u4e00\u4e2a\u7ecf\u5e38\u4f1a\u5f15\u8d77\u6027\u80fd\u95ee\u9898\u7684\u547d\u4ee4keys\uff0ckeys\u547d\u4ee4\u7528\u6765\u67e5\u627e\u5339\u914d\u6a21\u5f0f\u7684\u952e\uff0c\u4e0b\u9762\u6211\u4eec\u6765\u770b\u770b\uff0c\u4e3a\u4ec0\u4e48\u5728\u6570\u636e\u91cf\u5de8\u5927\u7684redis\u4e2d\u4f7f\u7528keys\u547d\u4ee4\u4f1a\u4f7f\u5f97redis\u65e0\u6cd5\u5904\u7406\u5176\u4ed6\u8bf7\u6c42\u3002\u5177\u4f53\u539f\u56e0\u5728\u4e8e\uff0cwhile((de = dictNext(di)) != NULL) \u4f1a\u904d\u5386\u67e5\u627e\u7684\u6240\u6709\u952e\uff0c\u5224\u65ad\u662f\u5426\u53ef\u4ee5\u5339\u914d<\/p>\n\n\n\n
void keysCommand(redisClient *c) {\n dictIterator *di;\n dictEntry *de;\n\n \/\/ \u9700\u8981\u5339\u914d\u7684\u89c4\u5219\n sds pattern = c->argv[1]->ptr;\n\n int plen = sdslen(pattern), allkeys;\n unsigned long numkeys = 0;\n void *replylen = addDeferredMultiBulkLength(c);\n\n \/\/ \u5b89\u5168\u6a21\u5f0f\u7684\u8fed\u4ee3\u5668\n di = dictGetSafeIterator(c->db->dict);\n \/\/ \u662f\u5168\u90e8key\u90fd\u5339\u914d keys * \u547d\u4ee4\n allkeys = (pattern[0] == '*' && pattern[1] == '\\0');\n while((de = dictNext(di)) != NULL) {\n sds key = dictGetKey(de);\n robj *keyobj;\n\n \/\/ \u662f\u6240\u6709key\u90fd\u7b26\u5408, \u6216\u8005\u5904\u7406\u5339\u914d\n if (allkeys || stringmatchlen(pattern,plen,key,sdslen(key),0)) {\n\n \/\/ \u521b\u5efa\u5339\u914d\u5230\u7684\u952e\u540d\u5b57\u7b26\u4e32\u5bf9\u8c61\n keyobj = createStringObject(key,sdslen(key));\n\n \/\/ \u5224\u65ad\u952e\u662f\u5426\u8fc7\u671f\u4e86==0\u662f\u952e\u8fd8\u5b58\u5728,\u4f1a\u6dfb\u52a0\u5230\u56de\u590d\u4e2d\n if (expireIfNeeded(c->db,keyobj) == 0) {\n addReplyBulk(c,keyobj);\n numkeys++;\n }\n\n decrRefCount(keyobj);\n }\n }\n dictReleaseIterator(di);\n\n setDeferredMultiBulkLength(c,replylen,numkeys);\n}\n\n\n\/* Glob-style pattern matching. *\/\nint stringmatchlen(const char *pattern, int patternLen,\n const char *string, int stringLen, int nocase)\n{\n while(patternLen) {\n switch(pattern[0]) {\n case '*':\n while (pattern[1] == '*') {\n pattern++;\n patternLen--;\n }\n if (patternLen == 1)\n return 1; \/* match *\/\n while(stringLen) {\n if (stringmatchlen(pattern+1, patternLen-1,\n string, stringLen, nocase))\n return 1; \/* match *\/\n string++;\n stringLen--;\n }\n return 0; \/* no match *\/\n break;\n case '?':\n if (stringLen == 0)\n return 0; \/* no match *\/\n string++;\n stringLen--;\n break;\n case '[':\n {\n int not, match;\n\n pattern++;\n patternLen--;\n not = pattern[0] == '^';\n if (not) {\n pattern++;\n patternLen--;\n }\n match = 0;\n while(1) {\n if (pattern[0] == '\\\\') {\n pattern++;\n patternLen--;\n if (pattern[0] == string[0])\n match = 1;\n } else if (pattern[0] == ']') {\n break;\n } else if (patternLen == 0) {\n pattern--;\n patternLen++;\n break;\n } else if (pattern[1] == '-' && patternLen >= 3) {\n int start = pattern[0];\n int end = pattern[2];\n int c = string[0];\n if (start > end) {\n int t = start;\n start = end;\n end = t;\n }\n if (nocase) {\n start = tolower(start);\n end = tolower(end);\n c = tolower(c);\n }\n pattern += 2;\n patternLen -= 2;\n if (c >= start && c <= end)\n match = 1;\n } else {\n if (!nocase) {\n if (pattern[0] == string[0])\n match = 1;\n } else {\n if (tolower((int)pattern[0]) == tolower((int)string[0]))\n match = 1;\n }\n }\n pattern++;\n patternLen--;\n }\n if (not)\n match = !match;\n if (!match)\n return 0; \/* no match *\/\n string++;\n stringLen--;\n break;\n }\n case '\\\\':\n if (patternLen >= 2) {\n pattern++;\n patternLen--;\n }\n \/* fall through *\/\n default:\n if (!nocase) {\n if (pattern[0] != string[0])\n return 0; \/* no match *\/\n } else {\n if (tolower((int)pattern[0]) != tolower((int)string[0]))\n return 0; \/* no match *\/\n }\n string++;\n stringLen--;\n break;\n }\n pattern++;\n patternLen--;\n if (stringLen == 0) {\n while(*pattern == '*') {\n pattern++;\n patternLen--;\n }\n break;\n }\n }\n if (patternLen == 0 && stringLen == 0)\n return 1;\n return 0;\n}\n<\/code><\/pre>\n\n\n\n\u57fa\u4e8e\u7248\u672c3.0.0\u7248\u672c,<\/a>\u70b9\u51fb\u4e0b\u8f7dhttps:\/\/download.redis.io\/releases\/redis-3.0.0.tar.gz<\/p>\n\n\n\n\u672c\u6587\u5730\u5740<\/a>\uff0chttps:\/\/www.ccagml.com\/?p=390<\/p>\n","protected":false},"excerpt":{"rendered":"\u5728redis\u6e90\u7801\u4ecemain\u5f00\u59cb6\u4e2d\u770b\u5b8c\u4e86\u5ba2\u6237\u7aef\u53d1\u6765\u4e00\u4e2a\u547d\u4ee4\u5728redis\u4e2d\u7684\u6267\u884c\u6d41\u7a0b\uff0c\u672c\u7ae0\u6211\u4eec\u770b\u4e00\u4e2a\u7ecf\u5e38\u4f1a\u5f15\u8d77\u6027Continue reading redis\u6e90\u7801\u4ecemain\u5f00\u59cb7<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[31,22],"tags":[],"_links":{"self":[{"href":"https:\/\/www.ccagml.com\/index.php?rest_route=\/wp\/v2\/posts\/390"}],"collection":[{"href":"https:\/\/www.ccagml.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.ccagml.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.ccagml.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ccagml.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=390"}],"version-history":[{"count":3,"href":"https:\/\/www.ccagml.com\/index.php?rest_route=\/wp\/v2\/posts\/390\/revisions"}],"predecessor-version":[{"id":393,"href":"https:\/\/www.ccagml.com\/index.php?rest_route=\/wp\/v2\/posts\/390\/revisions\/393"}],"wp:attachment":[{"href":"https:\/\/www.ccagml.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=390"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ccagml.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=390"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ccagml.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=390"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}