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Add a new example showing how to use hiredis.

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Ronsor 2022-12-23 19:18:10 -07:00 committed by Justine Tunney
parent 97ae5f7b1e
commit 9a46c5afc4
2 changed files with 56 additions and 0 deletions
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1
examples/examples.mk
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@ -80,6 +80,7 @@ EXAMPLES_DIRECTDEPS = \
THIRD_PARTY_LIBCXX \
THIRD_PARTY_LINENOISE \
THIRD_PARTY_LUA \
THIRD_PARTY_HIREDIS \
THIRD_PARTY_MBEDTLS \
THIRD_PARTY_MUSL \
THIRD_PARTY_NSYNC \

55
examples/hiredis.c Normal file
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@ -0,0 +1,55 @@
#if 0
/*─────────────────────────────────────────────────────────────────╗
│ To the extent possible under law, Justine Tunney has waived │
│ all copyright and related or neighboring rights to this file, │
│ as it is written in the following disclaimers: │
│ • http://unlicense.org/ │
│ • http://creativecommons.org/publicdomain/zero/1.0/ │
╚─────────────────────────────────────────────────────────────────*/
#endif
#include "libc/runtime/runtime.h"
#include "libc/fmt/conv.h"
#include "libc/fmt/fmt.h"
#include "libc/stdio/stdio.h"
#include "libc/str/str.h"
#include "third_party/hiredis/hiredis.h"
/**
* @fileoverview Demo of using hiredis to connect to a Redis server
*/
int main(int argc, char *argv[]) {
if (argc < 3 || argc > 5) {
fprintf(stderr, "Usage: %s HOST PORT [KEY] [VALUE]\n", argv[0]);
exit(1);
}
bool setValue = (argc == 5), getValue = (argc == 4);
redisContext *c = redisConnect(argv[1], atoi(argv[2]));
if (c == NULL || c->err) {
if (c) {
fprintf(stderr, "Connection error: %s\n", c->errstr);
redisFree(c);
} else {
fputs("Failed to allocate redis context\n", stderr);
}
exit(1);
}
redisReply *reply;
if (!setValue && !getValue) {
reply = redisCommand(c, "PING");
printf("PING: %s\n", reply->str);
} else if (setValue) {
reply = redisCommand(c, "SET %s %s", argv[3], argv[4]);
printf("SET: %s\n", reply->str);
} else {
reply = redisCommand(c, "GET %s", argv[3]);
printf("GET: %s\n", reply->str);
}
freeReplyObject(reply);
redisFree(c);
return 0;
}