Windows C++ 编译配置异步hiredis

1.微软官方github下载hiredis(我下载的是redis-3.0.zip)

GitHub - microsoftarchive/redis: Redis is an in-memory database that persists on disk. The data model is key-value, but many different kind of values are supported: Strings, Lists, Sets, Sorted Sets, Hashes

2.解压后进入目录msvs，使用VS2019打开RedisServer.sln，以Debug为例：

        1）直接编译hiredis生成hiredis.lib

        2）直接编译Win32_interop生成Win32_interop.lib

                ps：如报错，则在报错的Win32_variadicFunctor.cpp中添加#include

3.在你的项目目录下创建一个redisLib文件夹，将hiredis.lib和Win32_interop.lib放在这个文件夹下

4.右键项目，打开属性页面->C/C++

        1)代码生成->运行库：选择多线程调试MTD

        2)链接器->常规->附加库目录，将3中redisLib路径添加进去

        3)链接器->常规->附加依赖项：输入hiredis.lib和Win32_interop.lib

5.在C++项目中引用CC头文件的部分要包括在extern "C"中，如下面例程：

#include 

#ifdef __cplusplus
extern "C" {
#endif
#include "hiredis\hiredis.h"
#include "hiredis\async.h"
#include "hiredis\adapters\ae.h"
#ifdef __cplusplus
}
#endif

static aeEventLoop* loop;

static int getCallbackCalls = 0;
void getCallbackContinue(redisAsyncContext* c, void* r, void* privdata) {
    redisReply* reply = (redisReply*)r;
    if (reply == NULL)
        return;

    getCallbackCalls++;
    printf("callback invoked [%d] - key:%s - value:%s\n", getCallbackCalls, (char*)privdata, reply->str);
}

void getCallbackEnd(redisAsyncContext* c, void* r, void* privdata) {
    getCallbackContinue(c, r, privdata);
    redisAsyncDisconnect(c);
}

void connectCallback(const redisAsyncContext* c, int status) {
    if (status != REDIS_OK) {
        printf("Error: %s\n", c->errstr);
        return;
    }
    printf("Connected.\n");
}

void disconnectCallback(const redisAsyncContext* c, int status) {
    if (status != REDIS_OK) {
        printf("Error: %s\n", c->errstr);
        return;
    }
    aeStop(loop);
    printf("Disconnected.\n");
}

void AsyncSample() {
    printf("--- ASYNC Sample Start ---\n\n");
    /* The event loop must be created before the async connect */
    loop = aeCreateEventLoop(1024 * 10);

    redisAsyncContext* c = redisAsyncConnect("127.0.0.1", 6379);
    if (c == NULL || c->err) {
        if (c) {
            printf("Connection error: %s\n", c->errstr);
            redisAsyncFree(c);
        }
        else {
            printf("Connection error: can't allocate redis context\n");
        }
        return;
    }

    redisAeAttach(loop, c);
    redisAsyncSetConnectCallback(c, connectCallback);
    redisAsyncSetDisconnectCallback(c, disconnectCallback);
    char key_value[30] = "Hello World Async";
    redisAsyncCommand(c, NULL, NULL, "SET key %s", key_value, strlen(key_value));

    int counter = 10;
    printf("Get will be called %i times.\n", counter);
    for (int i = 1; i < counter; i++) {
        redisAsyncCommand(c, getCallbackContinue, (char*)"0", "GET key");
    }
    redisAsyncCommand(c, getCallbackEnd, (char*)"0", "GET key");

    aeMain(loop);

    printf("\n--- ASYNC Sample Complete ---\n");
}

int main(int argc, char** argv)
{
    AsyncSample();

    printf("\n--- ASYNC Sample Complete ---\n");

}

6.添加ae异步通信框架：将msvs\deps下的ae.c和adlist.c添加到项目中

7.将zmalloc.h复制到msvs\deps目录下，或者调整一下ae.c中zmalloc的include的路径以免报错

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注意，上述redis在使用异步方式时，虽然可以通过编译，但是无法连接，需要对redis库做一点修改才能使用，至于怎么修改，我现在没时间写，有时间再补上