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阅读strlen

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This commit is contained in:
LingZhaoHui 2020-11-11 21:01:36 +08:00
parent a335044204
commit 22f73b0644
2 changed files with 8 additions and 0 deletions
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5
src/object.c
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@ -611,11 +611,16 @@ int equalStringObjects(robj *a, robj *b) {
} }
} }
/**
* 计算value的长度。
* */
size_t stringObjectLen(robj *o) { size_t stringObjectLen(robj *o) {
serverAssertWithInfo(NULL,o,o->type == OBJ_STRING); serverAssertWithInfo(NULL,o,o->type == OBJ_STRING);
if (sdsEncodedObject(o)) { if (sdsEncodedObject(o)) {
// 对于字符串类型使用sdslen计算
return sdslen(o->ptr); return sdslen(o->ptr);
} else { } else {
// 对于非字符串使用
return sdigits10((long)o->ptr); return sdigits10((long)o->ptr);
} }
} }

3
src/t_string.c
View File

@ -495,6 +495,9 @@ void appendCommand(client *c) {
addReplyLongLong(c,totlen); addReplyLongLong(c,totlen);
} }
/**
* strlen 命令实现
* */
void strlenCommand(client *c) { void strlenCommand(client *c) {
robj *o; robj *o;
if ((o = lookupKeyReadOrReply(c,c->argv[1],shared.czero)) == NULL || if ((o = lookupKeyReadOrReply(c,c->argv[1],shared.czero)) == NULL ||