Linux安装hiredis C库

概述

项目中使用到了Redis作为实时库，故安装了对应的Linux C开发库。

下载路径：​​https://github.com/redis/hiredis​​

安装

1. 安装

unzip hiredis-master.zip
cd hiredis-master
make
make install
# 可以看到，hiredis安装到了/usr/local/lib和/usr/local/include下

2. 添加动态库寻找路径

vim /etc/ld.so.conf

在文件最后新增一行添加：

/usr/local/lib

因为系统默认不寻找/usr/local/lib目录下的动态连接库。

然后执行：

ldconfig

使之生效。

测试

vim test_hiredis.c

#include <stdio.h>
#include <string.h>
#include <hiredis/hiredis.h>

int main()
{
  redisContext *pRedisCtx = redisConnect("127.0.0.1", 6379);
  if (pRedisCtx->err)
  {
    redisFree(pRedisCtx);
    printf("Connect redis server err: %s\n", pRedisCtx->errstr);
    return -1;
  }

  printf("Connect redis server success...\n");

  const char *cmdSetVal = "SET test 100";
  redisReply *pReply = (redisReply *)redisCommand(pRedisCtx, cmdSetVal);
  if (NULL == pReply)
  {
    printf("Command[ %s ] exec failed!\n", cmdSetVal);
    redisFree(pRedisCtx);
    return -1;
  }

  if (!(pReply->type == REDIS_REPLY_STATUS && strcmp(pReply->str, "OK") == 0))
  {
    printf("Command[ %s ] exec failed!\n", cmdSetVal);
    freeReplyObject(pReply);
    redisFree(pRedisCtx);
    return -1;
  }

  freeReplyObject(pReply);
  printf("Command[ %s ] exec success...\n", cmdSetVal);

  const char *cmdGetVal = "GET test";
  pReply = (redisReply *)redisCommand(pRedisCtx, cmdGetVal);

  if (pReply->type != REDIS_REPLY_STRING)
  {
    printf("Command[ %s ] exec failed!\n", cmdGetVal);
    freeReplyObject(pReply);
    redisFree(pRedisCtx);
    return -1;
  }

  printf("GET test: %s\n", pReply->str);
  freeReplyObject(pReply);
  redisFree(pRedisCtx);
}

gcc test_hiredis.c -lhiredis
./a.out