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Introduce ReplyWithVerbatimString, ReplyWithEmptyArray, ReplyWithNullArray and ReplyWithEmptyString to redis module API

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This commit is contained in:
swilly22 2019-10-28 08:50:25 +02:00
parent 6e98214f74
commit 56a7c45521
2 changed files with 54 additions and 1 deletions
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46
src/module.c
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@ -1264,6 +1264,27 @@ int RM_ReplyWithArray(RedisModuleCtx *ctx, long len) {
return REDISMODULE_OK;
}
/* Reply to the client with a null array, simply null in RESP3
* null array in RESP2.
*
* The function always returns REDISMODULE_OK. */
int RM_ReplyWithNullArray(RedisModuleCtx *ctx) {
client *c = moduleGetReplyClient(ctx);
if (c == NULL) return REDISMODULE_OK;
addReplyNullArray(c);
return REDISMODULE_OK;
}
/* Reply to the client with an empty array.
*
* The function always returns REDISMODULE_OK. */
int RM_ReplyWithEmptyArray(RedisModuleCtx *ctx) {
client *c = moduleGetReplyClient(ctx);
if (c == NULL) return REDISMODULE_OK;
addReply(c,shared.emptyarray);
return REDISMODULE_OK;
}
/* When RedisModule_ReplyWithArray() is used with the argument
* REDISMODULE_POSTPONED_ARRAY_LEN, because we don't know beforehand the number
* of items we are going to output as elements of the array, this function
@ -1342,6 +1363,27 @@ int RM_ReplyWithString(RedisModuleCtx *ctx, RedisModuleString *str) {
return REDISMODULE_OK;
}
/* Reply with an empty string.
*
* The function always returns REDISMODULE_OK. */
int RM_ReplyWithEmptyString(RedisModuleCtx *ctx) {
client *c = moduleGetReplyClient(ctx);
if (c == NULL) return REDISMODULE_OK;
addReplyBulkCBuffer(c, "", 0);
return REDISMODULE_OK;
}
/* Reply with a binary safe string, which should not be escaped or filtered
* taking in input a C buffer pointer and length.
*
* The function always returns REDISMODULE_OK. */
int RM_ReplyWithVerbatimString(RedisModuleCtx *ctx, const char *buf, size_t len) {
client *c = moduleGetReplyClient(ctx);
if (c == NULL) return REDISMODULE_OK;
addReplyVerbatim(c, buf, len, "txt");
return REDISMODULE_OK;
}
/* Reply to the client with a NULL. In the RESP protocol a NULL is encoded
* as the string "$-1\r\n".
*
@ -6316,8 +6358,12 @@ void moduleRegisterCoreAPI(void) {
REGISTER_API(ReplyWithError);
REGISTER_API(ReplyWithSimpleString);
REGISTER_API(ReplyWithArray);
REGISTER_API(ReplyWithNullArray);
REGISTER_API(ReplyWithEmptyArray);
REGISTER_API(ReplySetArrayLength);
REGISTER_API(ReplyWithString);
REGISTER_API(ReplyWithEmptyString);
REGISTER_API(ReplyWithVerbatimString);
REGISTER_API(ReplyWithStringBuffer);
REGISTER_API(ReplyWithCString);
REGISTER_API(ReplyWithNull);

9
src/redismodule.h
View File

@ -382,10 +382,14 @@ const char *REDISMODULE_API_FUNC(RedisModule_StringPtrLen)(const RedisModuleStri
int REDISMODULE_API_FUNC(RedisModule_ReplyWithError)(RedisModuleCtx *ctx, const char *err);
int REDISMODULE_API_FUNC(RedisModule_ReplyWithSimpleString)(RedisModuleCtx *ctx, const char *msg);
int REDISMODULE_API_FUNC(RedisModule_ReplyWithArray)(RedisModuleCtx *ctx, long len);
int REDISMODULE_API_FUNC(RedisModule_ReplyWithNullArray)(RedisModuleCtx *ctx);
int REDISMODULE_API_FUNC(RedisModule_ReplyWithEmptyArray)(RedisModuleCtx *ctx);
void REDISMODULE_API_FUNC(RedisModule_ReplySetArrayLength)(RedisModuleCtx *ctx, long len);
int REDISMODULE_API_FUNC(RedisModule_ReplyWithStringBuffer)(RedisModuleCtx *ctx, const char *buf, size_t len);
int REDISMODULE_API_FUNC(RedisModule_ReplyWithCString)(RedisModuleCtx *ctx, const char *buf);
int REDISMODULE_API_FUNC(RedisModule_ReplyWithString)(RedisModuleCtx *ctx, RedisModuleString *str);
int REDISMODULE_API_FUNC(RedisModule_ReplyWithEmptyString)(RedisModuleCtx *ctx);
int REDISMODULE_API_FUNC(RedisModule_ReplyWithVerbatimString)(RedisModuleCtx *ctx, const char *buf, size_t len);
int REDISMODULE_API_FUNC(RedisModule_ReplyWithNull)(RedisModuleCtx *ctx);
int REDISMODULE_API_FUNC(RedisModule_ReplyWithDouble)(RedisModuleCtx *ctx, double d);
int REDISMODULE_API_FUNC(RedisModule_ReplyWithCallReply)(RedisModuleCtx *ctx, RedisModuleCallReply *reply);
@ -552,14 +556,17 @@ static int RedisModule_Init(RedisModuleCtx *ctx, const char *name, int ver, int
REDISMODULE_GET_API(ReplyWithError);
REDISMODULE_GET_API(ReplyWithSimpleString);
REDISMODULE_GET_API(ReplyWithArray);
REDISMODULE_GET_API(ReplyWithNullArray);
REDISMODULE_GET_API(ReplyWithEmptyArray);
REDISMODULE_GET_API(ReplySetArrayLength);
REDISMODULE_GET_API(ReplyWithStringBuffer);
REDISMODULE_GET_API(ReplyWithCString);
REDISMODULE_GET_API(ReplyWithString);
REDISMODULE_GET_API(ReplyWithEmptyString);
REDISMODULE_GET_API(ReplyWithVerbatimString);
REDISMODULE_GET_API(ReplyWithNull);
REDISMODULE_GET_API(ReplyWithCallReply);
REDISMODULE_GET_API(ReplyWithDouble);
REDISMODULE_GET_API(ReplySetArrayLength);
REDISMODULE_GET_API(GetSelectedDb);
REDISMODULE_GET_API(SelectDb);
REDISMODULE_GET_API(OpenKey);