MMDVMHost-Private/UDPSocket.h
SASANO Takayoshi 457be810a3 UDPSocket renewal
Currently there is six variations of (IPv4) UDPSocket.cpp.

- FMClients, NXDNClients, P25Clients, YSFClients(YSFParrot)
	use ::fprintf() for logging

- YSFClients(YSFReflector)
	use LogError() and LogInfo() for logging
	special open(string &bindaddr) function

- YSFClients(YSFGateway), DAPNETGateway
	use LogError() and LogInfo() for logging

- P25Clients, DMRGateway
	use LogError() for logging
	no LogInfo("Opening UDP port on") message

- NXDNClients
	use LogError() for logging
	no LogInfo("Opening UDP port on") message
	add #include <ifaddrs.h>

- MMDVMHost
	use LogError() for logging
	no LogInfo("Opening UDP port on") message
	no assert(!address.empty()) at constructor

to avoid explosion, commonized them.

	switch ::fprintf()/LogError by #define HAVE_LOG_H
	always display LogInfo("Opening UDP port on") message
	delete #include <ifaddrs.h>, this is not needed
	no assert(!address.empty()) at constructor

and to support YSFReflector, add multiple socket support.
default is #define UDP_SOCKET_MAX 1 so normally this feature is disabled.

added these functions.

	CUDPSocket()	(constructor without any parameters)
	open(index, af, addr, port)
	close(index)

CUDPSocket() means CUDPSocket(address = "", port = 0)
index selects socket, address and port is defined at open.

to have compatibility for old codes, these function works as

	CUDPSocket(addr, port)	store addr and port to index #0
	CUDPSocket(port)	store addr = "" and port to index #0
	open()		open with addr and port of index #0, AF_UNSPEC
	open(af)	open with addr and port of index #0, specified af
	close()		close *all* sockets

read/write operation is for all opened sockets.
2020-09-06 12:09:37 +09:00

75 lines
2.5 KiB
C++

/*
* Copyright (C) 2009-2011,2013,2015,2016,2020 by Jonathan Naylor G4KLX
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef UDPSocket_H
#define UDPSocket_H
#include <string>
#if !defined(_WIN32) && !defined(_WIN64)
#include <netdb.h>
#include <sys/time.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <poll.h>
#include <unistd.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <errno.h>
#else
#include <winsock2.h>
#include <ws2tcpip.h>
#endif
#if !defined(UDP_SOCKET_MAX)
#define UDP_SOCKET_MAX 1
#endif
class CUDPSocket {
public:
CUDPSocket(const std::string& address, unsigned int port = 0U);
CUDPSocket(unsigned int port = 0U);
CUDPSocket();
~CUDPSocket();
bool open();
bool open(const unsigned int af);
bool open(const unsigned int index, const unsigned int af, const std::string& address, const unsigned int port);
int read(unsigned char* buffer, unsigned int length, sockaddr_storage& address, unsigned int &address_length);
bool write(const unsigned char* buffer, unsigned int length, const sockaddr_storage& address, unsigned int address_length);
void close();
void close(const unsigned int index);
static int lookup(const std::string& hostName, unsigned int port, sockaddr_storage &address, unsigned int &address_length);
static int lookup(const std::string& hostName, unsigned int port, sockaddr_storage &address, unsigned int &address_length, struct addrinfo &hints);
static bool match(const sockaddr_storage &addr1, const sockaddr_storage &addr2);
static bool match_addr(const sockaddr_storage &addr1, const sockaddr_storage &addr2);
static bool isnone(const sockaddr_storage &addr);
private:
std::string m_address[UDP_SOCKET_MAX];
unsigned short m_port[UDP_SOCKET_MAX];
unsigned int m_af[UDP_SOCKET_MAX];
int m_fd[UDP_SOCKET_MAX];
unsigned int m_counter;
};
#endif