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memcached.cpp
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memcached.cpp
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//
// memcached 接続テスト
//
#include <cstdio>
#include <cstring>
#include <string>
#include <unistd.h>
#include <arpa/inet.h>
#include <netdb.h>
#include <netinet/in.h>
#include <sys/socket.h>
#include <sys/types.h>
//
//
//
//
//
//
int
main(int argc, char** argv)
{
if (argc < 4)
{
printf("usage: %s host port\n", argv[0]);
return 1;
}
std::string hostname = argv[1];
std::string service = argv[2];
std::string message = argv[3];
struct addrinfo hints, *res;
struct in_addr addr;
memset(&hints, 0, sizeof(hints));
hints.ai_socktype = SOCK_STREAM;
hints.ai_family = AF_INET;
hints.ai_flags = 0;
hints.ai_protocol = 0;
auto err = getaddrinfo(hostname.c_str(), service.c_str(), &hints, &res);
if (err != 0)
{
printf("address info error: %d\n", err);
return 1;
}
addr.s_addr = ((struct sockaddr_in*)(res->ai_addr))->sin_addr.s_addr;
printf("ip addres: %s\n", inet_ntoa(addr));
auto sock = socket(res->ai_family, res->ai_socktype, res->ai_protocol);
if (sock < 0)
{
perror("socket");
return 1;
}
if (connect(sock, res->ai_addr, res->ai_addrlen) != 0)
{
perror("connect");
return 1;
}
{
// write header
int len = message.length();
char head[256];
snprintf(head, sizeof(head), "set key 0 0 %d\r\n", len);
send(sock, head, strlen(head), 0);
// write body
std::string body = message + "\r\n";
send(sock, body.c_str(), body.length(), 0);
// result
char cmd_res[256];
int res_len = recv(sock, cmd_res, sizeof(cmd_res), 0);
printf("--- command result[%d] ---\n%s", res_len, cmd_res);
const char* getter = "get key\r\n";
char get_buff[1024];
send(sock, getter, strlen(getter), 0);
int rlen = recv(sock, get_buff, sizeof(get_buff), 0);
printf("--- result[%d] ---\n%s", rlen, get_buff);
}
printf("done\n");
close(sock);
// 取得した情報を解放
freeaddrinfo(res);
return 0;
}
//