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55 lines
1.5 KiB
C
55 lines
1.5 KiB
C
#include "../redismodule.h"
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#include "../rmutil/util.h"
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#include "../rmutil/strings.h"
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/* EXAMPLE.PARSE [SUM <x> <y>] | [PROD <x> <y>]
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* Demonstrates the automatic arg parsing utility.
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* If the command receives "SUM <x> <y>" it returns their sum
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* If it receives "PROD <x> <y>" it returns their product
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*/
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int ParseCommand(RedisModuleCtx *ctx, RedisModuleString **argv, int argc) {
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// we must have at least 4 args
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if (argc < 4) {
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return RedisModule_WrongArity(ctx);
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}
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// init auto memory for created strings
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RedisModule_AutoMemory(ctx);
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long long x,y;
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// If we got SUM - return the sum of 2 consecutive arguments
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if (RMUtil_ParseArgsAfter("SUM", argv, argc, "ll", &x, &y) == REDISMODULE_OK) {
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RedisModule_ReplyWithLongLong(ctx, x+y);
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return REDISMODULE_OK;
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}
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// If we got PROD - return the product of 2 consecutive arguments
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if (RMUtil_ParseArgsAfter("PROD", argv, argc, "ll", &x, &y) == REDISMODULE_OK) {
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RedisModule_ReplyWithLongLong(ctx, x*y);
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return REDISMODULE_OK;
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}
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// something is fishy...
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RedisModule_ReplyWithError(ctx, "Invalid arguments");
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return REDISMODULE_OK;
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}
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int RedisModule_OnLoad(RedisModuleCtx *ctx) {
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if (RedisModule_Init(ctx,"example",1, REDISMODULE_APIVER_1) == REDISMODULE_ERR) {
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return REDISMODULE_ERR;
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}
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if (RedisModule_CreateCommand(ctx, "example.parse", ParseCommand, "readonly", 1,1,1)
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== REDISMODULE_ERR) {
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return REDISMODULE_ERR;
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}
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return REDISMODULE_OK;
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} |