linux下redis的安装,使用
redis:1.直接下载: wget http://download.redis.io/releases/redis-2.8.9.tar.gz2.make编译3.设置配置文件redis.config,在src目录去执行启动 : ./redis-server ../redis.config 后面可以加上配置文件实现让服务器后台运行,成为守护进程4.登陆客户端,同样
redis: 1.直接下载: wget http://download.redis.io/releases/redis-2.8.9.tar.gz 2.make编译 3.设置配置文件redis.config,在src目录去执行启动 : ./redis-server ../redis.config 后面可以加上配置文件实现让服务器后台运行,成为守护进程 4.登陆客户端,同样在src目录 ./redis-cli 也可以telnet ip port不过输出键值对的时候有个$2 5.写程序的时候需要使用redis的api,方法,在hiredis目录下生产一个静态库文件libhiredis.a,把头文件放进/usr/include,静态库文件放进/lib,编译文件的时候加上-lhiredis,就可以使用了,动态库也是类似的调用方法 c语言连接插入redis实例: http://blog.csdn.net/hj19870806/article/details/8724907 http://yaocoder.blog.51cto.com/2668309/1297031#include <stdio.h> #include <stdlib.h> #include <stddef.h> #include <stdarg.h> #include <string.h> #include <assert.h> #include <hiredis/hiredis.h> void doTest() { int timeout = 10000; struct timeval tv; tv.tv_sec = timeout / 1000; tv.tv_usec = timeout * 1000; //以带有超时的方式链接Redis服务器,同时获取与Redis连接的上下文对象。 //该对象将用于其后所有与Redis操作的函数。 redisContext* c = redisConnect((char*)"127.0.0.1", 6379); if (c->err) { redisFree(c); return; } const char* command1 = "set stest1 value9"; redisReply* r = (redisReply*)redisCommand(c,command1); //需要注意的是,如果返回的对象是NULL,则表示客户端和服务器之间出现严重错误,必须重新链接。 //这里只是举例说明,简便起见,后面的命令就不再做这样的判断了。 if (NULL == r) { redisFree(c); return; } //不同的Redis命令返回的数据类型不同,在获取之前需要先判断它的实际类型。 //至于各种命令的返回值信息,可以参考Redis的官方文档,或者查看该系列博客的前几篇 //有关Redis各种数据类型的博客。:) //字符串类型的set命令的返回值的类型是REDIS_REPLY_STATUS,然后只有当返回信息是"OK" //时,才表示该命令执行成功。后面的例子以此类推,就不再过多赘述了。 if (!(r->type == REDIS_REPLY_STATUS && strcasecmp(r->str,"OK") == 0)) { printf("Failed to execute command[%s].\n",command1); freeReplyObject(r); redisFree(c); return; } //由于后面重复使用该变量,所以需要提前释放,否则内存泄漏。 freeReplyObject(r); printf("Succeed to execute command[%s].\n",command1); const char* command2 = "strlen stest1"; r = (redisReply*)redisCommand(c,command2); if (r->type != REDIS_REPLY_INTEGER) { printf("Failed to execute command[%s].\n",command2); freeReplyObject(r); redisFree(c); return; } int length = r->integer; freeReplyObject(r); printf("The length of 'stest1' is %d.\n",length); printf("Succeed to execute command[%s].\n",command2); const char* command3 = "get stest1"; r = (redisReply*)redisCommand(c,command3); if (r->type != REDIS_REPLY_STRING) { printf("Failed to execute command[%s].\n",command3); freeReplyObject(r); redisFree(c); return; } printf("The value of 'stest1' is %s.\n",r->str); freeReplyObject(r); printf("Succeed to execute command[%s].\n",command3); const char* command4 = "get stest2"; r = (redisReply*)redisCommand(c,command4); //这里需要先说明一下,由于stest2键并不存在,因此Redis会返回空结果,这里只是为了演示。 if (r->type != REDIS_REPLY_NIL) { printf("Failed to execute command[%s].\n",command4); freeReplyObject(r); redisFree(c); return; } freeReplyObject(r); printf("Succeed to execute command[%s].\n",command4); const char* command5 = "mget stest1 stest2"; r = (redisReply*)redisCommand(c,command5); //不论stest2存在与否,Redis都会给出结果,只是第二个值为nil。 //由于有多个值返回,因为返回应答的类型是数组类型。 if (r->type != REDIS_REPLY_ARRAY) { printf("Failed to execute command[%s].\n",command5); freeReplyObject(r); redisFree(c); //r->elements表示子元素的数量,不管请求的key是否存在,该值都等于请求是键的数量。 assert(2 == r->elements); return; } int i; for (i = 0; i < r->elements; ++i) { redisReply* childReply = r->element[i]; //之前已经介绍过,get命令返回的数据类型是string。 //对于不存在key的返回值,其类型为REDIS_REPLY_NIL。 if (childReply->type == REDIS_REPLY_STRING) printf("The value is %s.\n",childReply->str); } //对于每一个子应答,无需使用者单独释放,只需释放最外部的redisReply即可。 freeReplyObject(r); printf("Succeed to execute command[%s].\n",command5); printf("Begin to test pipeline.\n"); //该命令只是将待发送的命令写入到上下文对象的输出缓冲区中,直到调用后面的 //redisGetReply命令才会批量将缓冲区中的命令写出到Redis服务器。这样可以 //有效的减少客户端与服务器之间的同步等候时间,以及网络IO引起的延迟。 //至于管线的具体性能优势,可以考虑该系列博客中的管线主题。 /* if (REDIS_OK != redisAppendCommand(c,command1) || REDIS_OK != redisAppendCommand(c,command2) || REDIS_OK != redisAppendCommand(c,command3) || REDIS_OK != redisAppendCommand(c,command4) || REDIS_OK != redisAppendCommand(c,command5)) { redisFree(c); return; } */ redisAppendCommand(c,command1); redisAppendCommand(c,command2); redisAppendCommand(c,command3); redisAppendCommand(c,command4); redisAppendCommand(c,command5); redisReply* reply = NULL; //对pipeline返回结果的处理方式,和前面代码的处理方式完全一直,这里就不再重复给出了。 if (REDIS_OK != redisGetReply(c,(void**)&reply)) { printf("Failed to execute command[%s] with Pipeline.\n",command1); freeReplyObject(reply); redisFree(c); } freeReplyObject(reply); printf("Succeed to execute command[%s] with Pipeline.\n",command1); if (REDIS_OK != redisGetReply(c,(void**)&reply)) { printf("Failed to execute command[%s] with Pipeline.\n",command2); freeReplyObject(reply); redisFree(c); } freeReplyObject(reply); printf("Succeed to execute command[%s] with Pipeline.\n",command2); if (REDIS_OK != redisGetReply(c,(void**)&reply)) { printf("Failed to execute command[%s] with Pipeline.\n",command3); freeReplyObject(reply); redisFree(c); } freeReplyObject(reply); printf("Succeed to execute command[%s] with Pipeline.\n",command3); if (REDIS_OK != redisGetReply(c,(void**)&reply)) { printf("Failed to execute command[%s] with Pipeline.\n",command4); freeReplyObject(reply); redisFree(c); } freeReplyObject(reply); printf("Succeed to execute command[%s] with Pipeline.\n",command4); if (REDIS_OK != redisGetReply(c,(void**)&reply)) { printf("Failed to execute command[%s] with Pipeline.\n",command5); freeReplyObject(reply); redisFree(c); } freeReplyObject(reply); printf("Succeed to execute command[%s] with Pipeline.\n",command5); //由于所有通过pipeline提交的命令结果均已为返回,如果此时继续调用redisGetReply, //将会导致该函数阻塞并挂起当前线程,直到有新的通过管线提交的命令结果返回。 //最后不要忘记在退出前释放当前连接的上下文对象。 redisFree(c); return; } int main() { doTest(); return 0; }
memcache: http://php.net/manual/zh/book.memcache.php http://docs.linuxtone.org/ebooks/NOSQL/memcached/memcached--%E9%BB%91%E5%A4%9C%E8%B7%AF%E4%BA%BA.pdf
gcc源码编译: http://www.cnblogs.com/codemood/archive/2013/06/01/3113200.html 下载地址:http://ftp.gnu.org/ GNU的ftp服务器下载

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