Mbed OS 文档翻译 之 参考（API（网络套接字（TCPServer）））

TCPServer

                                                                                

                                                                         TCPServer 类层次结构

TCPServer 类提供接受传入 TCP 连接的能力。listen 成员函数将服务器设置为侦听传入连接，accept 成员函数在传入连接上设置有状态 TCPSocket 实例。

构造函数接受 NetworkStack 指针以打开指定 NetworkInterface 上的套接字。如果未在构造函数中传递 NetworkStack 指针，则必须调用 open 以初始化套接字。

有关 TCP connect，send 和 recv API 的信息，请参阅 TCPSocket 类。

TCPServer 类参考

TCPServer 类参考

公共成员函数
	TCPServer ()
template
	TCPServer (S *stack)
virtual	~TCPServer ()
nsapi_error_t	accept (TCPSocket *connection, SocketAddress *address=NULL)
公共成员函数继承自 TCPSocket
	TCPSocket ()
template
	TCPSocket (S *stack)
virtual	~TCPSocket ()
virtual int	join_multicast_group (const SocketAddress &address)
nsapi_error_t	connect (const char *host, uint16_t port)
virtual nsapi_error_t	connect (const SocketAddress &address)
virtual nsapi_size_or_error_t	send (const void *data, nsapi_size_t size)
virtual nsapi_size_or_error_t	recv (void *data, nsapi_size_t size)
virtual nsapi_size_or_error_t	sendto (const SocketAddress &address, const void *data, nsapi_size_t size)
virtual nsapi_size_or_error_t	recvfrom (SocketAddress *address, void *data, nsapi_size_t size)
virtual TCPSocket *	accept (nsapi_error_t *error=NULL)
virtual nsapi_error_t	listen (int backlog=1)
公共成员函数继承自 InternetSocket
virtual	~InternetSocket ()
nsapi_error_t	open (NetworkStack *stack)
template
nsapi_error_t	open (S *stack)
virtual nsapi_error_t	close ()
int	join_multicast_group (const SocketAddress &address)
int	leave_multicast_group (const SocketAddress &address)
nsapi_error_t	bind (uint16_t port)
nsapi_error_t	bind (const char *address, uint16_t port)
virtual nsapi_error_t	bind (const SocketAddress &address)
virtual void	set_blocking (bool blocking)
virtual void	set_timeout (int timeout)
virtual nsapi_error_t	setsockopt (int level, int optname, const void *optval, unsigned optlen)
virtual nsapi_error_t	getsockopt (int level, int optname, void *optval, unsigned *optlen)
virtual void	sigio (mbed::Callback< void()> func)
void	attach (mbed::Callback< void()> func)
template
void	attach (T *obj, M method)
公共成员函数继承自 Socket
virtual	~Socket ()

其他继承成员
受保护的成员函数继承自 TCPSocket
virtual nsapi_protocol_t	get_proto ()
受保护的成员函数继承自 InternetSocket
virtual void	event ()
int	modify_multicast_group (const SocketAddress &address, nsapi_socket_option_t socketopt)
受保护的属性继承自 InternetSocket
NetworkStack *	_stack
nsapi_socket_t	_socket
uint32_t	_timeout
mbed::Callback< void()>	_event
mbed::Callback< void()>	_callback
rtos::EventFlags	_event_flag
rtos::Mutex	_lock
SocketAddress	_remote_peer
uint8_t	_readers
uint8_t	_writers
volatile unsigned	_pending
bool	_factory_allocated
从中继承的静态保护属性 InternetSocket
static const int	READ_FLAG = 0x1u
static const int	WRITE_FLAG = 0x2u
static const int	FINISHED_FLAG = 0x3u

TCPServer 示例

这是一个 TCP 服务器示例。它接受单个 telnet 客户端连接并发送缓冲区数据。

main.cpp                                                                                                                                              导入到 Mbed IDE

#include "mbed.h"
#include "EthernetInterface.h"
#include "TCPServer.h"
#include "TCPSocket.h"

int main()
{
    printf("TCP server example\n");
    
    EthernetInterface eth;
    eth.connect();
    
    printf("The Server IP address is '%s'\n", eth.get_ip_address());
    
    TCPServer srv;
    TCPSocket client_sock;
    SocketAddress client_addr;
    char *buffer = new char[256];
    
    /* Open the server on ethernet stack */
    srv.open(ð);
    
    /* Bind the HTTP port (TCP 80) to the server */
    srv.bind(eth.get_ip_address(), 23);
    
    /* Can handle x simultaneous connections */
    srv.listen(1);

    srv.accept(&client_sock, &client_addr);
    printf("Accepted %s:%d\n", client_addr.get_ip_address(), 
                    client_addr.get_port());
    strcpy(buffer, "Hello \n\r");
    client_sock.send(buffer, strlen(buffer));
    client_sock.recv(buffer, 256);
    
    client_sock.close();
    delete[] buffer;
}

相关内容

• TCPSocket API 参考。