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Modules: dictionary API work in progress #4: reseek API.

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antirez 2018-09-24 16:43:47 +02:00
parent 14b2f7b033
commit 3968550135
1 changed files with 25 additions and 6 deletions
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31
src/module.c
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@ -4443,17 +4443,36 @@ RedisModuleDictIter *RM_DictIteratorStartStr(RedisModuleDict *d, const char *op,
return RM_DictIteratorStart(d,op,key->ptr,sdslen(key->ptr));
}
/* TODO
/* Release the iterator created with RedisModule_DictIteratorStart(). This call
* is mandatory otherwise a memory leak is introduced in the module. */
void RM_DictIteratorStop(RedisModuleDictIter *di) {
raxStop(&di->ri);
zfree(di);
}
RM_DictIteratorStart();
RM_DictIteratorStartStr();
RM_DictIteratorReseek();
RM_DictIteratorReseekStr();
/* After its creation with RedisModule_DictIteratorStart(), it is possible to
* change the currently selected element of the iterator by using this
* API call. The result based on the operator and key is exactly like
* the function RedisModule_DictIteratorStart(), however in this case the
* return value is just REDISMODULE_OK in case the seeked element was found,
* or REDISMODULE_ERR in case it was not possible to seek the specified
* element. It is possible to reseek an iterator as many times as you want. */
int RM_DictIteratorReseek(RedisModuleDictIter *di, const char *op, void *key, size_t keylen) {
return raxSeek(&di->ri,op,key,keylen);
}
/* Like RedisModule_DictIteratorReseek() but takes the key as as a
* RedisModuleString. */
int RM_DictIteratorReseekStr(RedisModuleDictIter *di, const char *op, RedisModuleString *key) {
return RM_DictIteratorReseek(di,op,key->ptr,sdslen(key->ptr));
}
/* TODO
RM_DictNext();
RM_DictPrev();
RM_DictNextStr();
RM_DictPrevStr();
RM_DictIteratorStop();
Change the string API to make the context optional.
*/
/* --------------------------------------------------------------------------