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Modules: RedisModule_ReplyWithCallReply().

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This commit is contained in:
antirez 2016-04-11 12:23:04 +02:00
parent 6054089fa8
commit f4e0129fa9
4 changed files with 31 additions and 1 deletions
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10
src/module.c
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@ -87,7 +87,7 @@ typedef struct RedisModuleCommandProxy RedisModuleCommandProxy;
/* Reply of RM_Call() function. The function is filled in a lazy
* way depending on the function called on the reply structure. By default
* only the type and proto are filled. */
* only the type, proto and protolen are filled. */
struct RedisModuleCallReply {
RedisModuleCtx *ctx;
int type; /* REDISMODULE_REPLY_... */
@ -470,6 +470,13 @@ int RM_ReplyWithNull(RedisModuleCtx *ctx) {
return REDISMODULE_OK;
}
/* Reply exactly what a Redis command returned us with RM_Call(). */
int RM_ReplyWithCallReply(RedisModuleCtx *ctx, RedisModuleCallReply *reply) {
sds proto = sdsnewlen(reply->proto, reply->protolen);
addReplySds(ctx->client,proto);
return REDISMODULE_OK;
}
/* --------------------------------------------------------------------------
* Commands replication API
* -------------------------------------------------------------------------- */
@ -1204,6 +1211,7 @@ void moduleRegisterCoreAPI(void) {
REGISTER_API(ReplyWithString);
REGISTER_API(ReplyWithStringBuffer);
REGISTER_API(ReplyWithNull);
REGISTER_API(ReplyWithCallReply);
REGISTER_API(GetSelectedDb);
REGISTER_API(SelectDb);
REGISTER_API(OpenKey);

1
src/modules/API.md
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@ -694,3 +694,4 @@ Command implementations, on keys position request, must reply with
`REDISMODULE_KEYPOS_OK` to signal the request was processed, otherwise
Cluster returns an error for those module commands that are not able to
describe the position of keys.

19
src/modules/helloworld.c
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@ -51,6 +51,21 @@ int HelloPushCall_RedisCommand(RedisModuleCtx *ctx, RedisModuleString **argv, in
return REDISMODULE_OK;
}
/* HELLO.PUSH.CALL2
* This is exaxctly as HELLO.PUSH.CALL, but shows how we can reply to the
* client using directly a reply object that Call() returned. */
int HelloPushCall2_RedisCommand(RedisModuleCtx *ctx, RedisModuleString **argv, int argc)
{
if (argc != 3) return RedisModule_WrongArity(ctx);
RedisModuleCallReply *reply;
reply = RedisModule_Call(ctx,"RPUSH","ss",argv[1],argv[2]);
RedisModule_ReplyWithCallReply(ctx,reply);
RedisModule_FreeCallReply(reply);
return REDISMODULE_OK;
}
/* HELLO.LIST.SUM.LEN returns the total length of all the items inside
* a Redis list, by using the high level Call() API.
* This command is an example of the array reply access. */
@ -306,6 +321,10 @@ int RedisModule_OnLoad(RedisModuleCtx *ctx) {
HelloPushCall_RedisCommand) == REDISMODULE_ERR)
return REDISMODULE_ERR;
if (RedisModule_CreateCommand(ctx,"hello.push.call2",
HelloPushCall2_RedisCommand) == REDISMODULE_ERR)
return REDISMODULE_ERR;
if (RedisModule_CreateCommand(ctx,"hello.list.sum.len",
HelloListSumLen_RedisCommand) == REDISMODULE_ERR)
return REDISMODULE_ERR;

2
src/redismodule.h
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@ -86,6 +86,7 @@ int REDISMODULE_API_FUNC(RedisModule_ReplyWithArray)(RedisModuleCtx *ctx, int le
int REDISMODULE_API_FUNC(RedisModule_ReplyWithStringBuffer)(RedisModuleCtx *ctx, const char *buf, size_t len);
int REDISMODULE_API_FUNC(RedisModule_ReplyWithString)(RedisModuleCtx *ctx, RedisModuleString *str);
int REDISMODULE_API_FUNC(RedisModule_ReplyWithNull)(RedisModuleCtx *ctx);
int REDISMODULE_API_FUNC(RedisModule_ReplyWithCallReply)(RedisModuleCtx *ctx, RedisModuleCallReply *reply);
int REDISMODULE_API_FUNC(RedisModule_StringToLongLong)(RedisModuleString *str, long long *ll);
void REDISMODULE_API_FUNC(RedisModule_AutoMemory)(RedisModuleCtx *ctx);
int REDISMODULE_API_FUNC(RedisModule_Replicate)(RedisModuleCtx *ctx, const char *cmdname, const char *fmt, ...);
@ -111,6 +112,7 @@ static int RedisModule_Init(RedisModuleCtx *ctx, const char *name, int ver, int
REDISMODULE_GET_API(ReplyWithStringBuffer);
REDISMODULE_GET_API(ReplyWithString);
REDISMODULE_GET_API(ReplyWithNull);
REDISMODULE_GET_API(ReplyWithCallReply);
REDISMODULE_GET_API(GetSelectedDb);
REDISMODULE_GET_API(SelectDb);
REDISMODULE_GET_API(OpenKey);