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| Original file line number | Diff line number | Diff line change |
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| SRC := examples | ||
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| include config.mk | ||
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| LDFLAGS += -L$(LIB) -lredisx | ||
| LD_LIBRARY_PATH := $(LIB):$(LD_LIBRARY_PATH) | ||
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| .PHONY: all | ||
| all: $(BIN)/hello | ||
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| include build.mk |
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| #include <stdio.h> | ||
| #include <stdlib.h> | ||
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| #include <redisx.h> | ||
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| /* | ||
| * Pings a Redis server with a hello message, and prints the response, or else an error. | ||
| * | ||
| * Usage: hello [host] | ||
| * | ||
| * Options: | ||
| * host The Redis server host (default: "127.0.0.1") | ||
| * | ||
| * Exit status: | ||
| * 0 Successful completion | ||
| * 1 Could not connect to Redis server | ||
| * 2 Bad response from server | ||
| * | ||
| * Author: Attila Kovacs | ||
| * Version: 19 December 2024 | ||
| */ | ||
| int main(int argc, char *argv[]) { | ||
| // Initialize for Redis server at 'my-server.com'. | ||
| Redis *redis; | ||
| char *host = "127.0.0.1"; // Default host | ||
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| if(argc > 1) host = argv[1]; // program argument designates host | ||
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| // Initialize with the designated or default host | ||
| redis = redisxInit(host); | ||
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| // Connect to Redis / Valkey server | ||
| if(redis != NULL && redisxConnect(redis, FALSE) == X_SUCCESS) { | ||
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| // Execute 'PING "Hello World!"' query on the server | ||
| RESP *reply = redisxRequest(redis, "PING", "Hello World!", NULL, NULL, NULL); | ||
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| // Check that we got a response of the expected type (bulk string of any length) | ||
| if(redisxCheckRESP(reply, RESP_BULK_STRING, 0) == X_SUCCESS) | ||
| printf("%s\n", (char *) reply->value); | ||
| else { | ||
| fprintf(stderr, "ERROR! bad response\n"); | ||
| return 2; | ||
| } | ||
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| // Clean up | ||
| redisxDestroyRESP(reply); | ||
| redisxDisconnect(redis); | ||
| } | ||
| else { | ||
| perror("ERROR! could not connect"); | ||
| return 1; | ||
| } | ||
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| // Free up the resources used by the 'redis' instance. | ||
| redisxDestroy(redis); | ||
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| return 0; | ||
| } |