进程间通信_socket_udp_非阻塞

//// 客户端
#define MAX_LEN_BUF_UDP (MAX_PATH)
#define SOCKET_LOCAL_ADDR ("127.0.0.1")
#define SOCKET_LOCAL_PORT (12102)
#define SOCKET_REMOTE_ADDR ("127.0.0.1")
#define SOCKET_REMOTE_PORT (12101)

int Client_Send(const char* data, char* ret)
{
SOCKET  socket_bind = socket(AF_INET, SOCK_DGRAM, 0);
sockaddr_in serverAddr;
sockaddr_in clientAddr;
sockaddr_in address;

serverAddr.sin_addr.S_un.S_addr = htonl(INADDR_ANY);
serverAddr.sin_family = AF_INET;
serverAddr.sin_port = htons(SOCKET_LOCAL_PORT);

int err = bind(socket_bind, (SOCKADDR*)&serverAddr, sizeof(SOCKADDR));
if (err < 0)
{
return 0;
}

clientAddr.sin_family = AF_INET;
clientAddr.sin_port = htons(SOCKET_REMOTE_PORT);
clientAddr.sin_addr.s_addr = inet_addr(SOCKET_REMOTE_ADDR);

char buf[MAX_LEN_BUF_UDP] = { 0 };