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UdpSocket.cpp
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182 lines (140 loc) · 4.36 KB
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/*
* =====================================================================================
*
* Filename: UdpSocket.cpp
*
* Description:
*
* Version: 1.0
* Created: 08/26/2017 03:34:03 PM
* Last Modified: 2018-01-22 09:12:37
* Revision: none
* Compiler: gcc
*
* Author: zt (),
* Organization:
*
* =====================================================================================
*/
#include "UdpSocket.h"
UdpSocket::UdpSocket ( std::string lsSelf, std::string lsRemote )
: m_lsSelf ( lsSelf ), m_lsRemote ( lsRemote ),
m_sockfd_self ( -1 ), m_sockfd_remote ( -1 ),
m_premotesockaddr ( NULL )
{
InitLocalSocket();
}
UdpSocket::UdpSocket ( uint16_t localport, std::string remoteip, uint16_t remoteport )
: m_port_local ( localport ), m_port_remote ( remoteport ), m_remoteip ( remoteip ),
m_sockfd_self ( -1 ), m_sockfd_remote ( -1 ),
m_premotesockaddr ( NULL )
{
Init();
}
UdpSocket::~UdpSocket()
{
DeInit();
}
int UdpSocket::Init()
{
m_sockfd_self = socket ( PF_INET, SOCK_DGRAM, 0 );
SetNonBlock ( m_sockfd_self );
int loop = 1;
setsockopt ( m_sockfd_self, SOL_SOCKET, SO_REUSEADDR,
reinterpret_cast<char*> ( &loop ), sizeof ( loop ) );
bzero ( &m_local_addr, sizeof ( m_local_addr ) );
m_local_addr.sin_family = AF_INET;
m_local_addr.sin_addr.s_addr = htonl ( INADDR_ANY );
m_local_addr.sin_port = htons ( m_port_local );
bind ( m_sockfd_self, reinterpret_cast<sockaddr*> ( &m_local_addr ), sizeof ( m_local_addr ) );
m_sockfd_remote = socket ( PF_INET, SOCK_DGRAM, 0 );
SetNonBlock ( m_sockfd_remote );
bzero ( &m_remote_addr, sizeof ( m_remote_addr ) );
m_remote_addr.sin_family = AF_INET;
m_remote_addr.sin_port = htons ( m_port_remote );
m_remote_addr.sin_addr.s_addr = inet_addr ( m_remoteip.c_str() );
m_remoteaddrlen = sizeof ( m_remote_addr );
m_premotesockaddr = reinterpret_cast<sockaddr*> ( &m_remote_addr );
return 0;
}
int UdpSocket::InitLocalSocket()
{
m_sockfd_self = socket ( AF_UNIX, SOCK_DGRAM, 0 );
int loop = 1;
setsockopt ( m_sockfd_self, SOL_SOCKET, SO_REUSEADDR,
reinterpret_cast<char*> ( &loop ), sizeof ( loop ) );
m_self_ls_addr.sun_family = AF_UNIX;
strcpy ( m_self_ls_addr.sun_path, m_lsSelf.c_str() );
m_self_ls_addr.sun_path[0] = 0;
m_selfaddrlen = m_lsSelf.size() + offsetof ( sockaddr_un, sun_path );
bind ( m_sockfd_self, reinterpret_cast<sockaddr*> ( &m_self_ls_addr ), m_selfaddrlen );
m_sockfd_remote = socket ( AF_UNIX, SOCK_DGRAM, 0 );
m_remote_ls_addr.sun_family = AF_UNIX;
strcpy ( m_remote_ls_addr.sun_path, m_lsRemote.c_str() );
m_remote_ls_addr.sun_path[0] = 0;
m_remoteaddrlen = m_lsRemote.size() + offsetof ( sockaddr_un, sun_path );
m_premotesockaddr = reinterpret_cast<sockaddr*> ( &m_remote_ls_addr );
return 0;
}
int UdpSocket::DeInit()
{
if ( m_sockfd_self > 0 )
close ( m_sockfd_self );
if ( m_sockfd_remote > 0 )
close ( m_sockfd_remote );
return 0;
}
int UdpSocket::Send ( const uint8_t* sendbuf, int size )
{
if ( m_sockfd_remote < 0 )
return -1;
return sendto ( m_sockfd_remote, reinterpret_cast<const char*> ( sendbuf ), size,
0, m_premotesockaddr, m_remoteaddrlen );
}
int UdpSocket::Recv ( uint8_t* recvbuf, int size )
{
if ( m_sockfd_self < 0 )
return -1;
sockaddr addr;
socklen_t len = sizeof ( addr );
return recvfrom ( m_sockfd_self, reinterpret_cast<char*> ( recvbuf ),
size, 0, &addr, &len );
}
int UdpSocket::SetNonBlock ( int sockfd )
{
int flags;
if ( ( flags = fcntl ( sockfd, F_GETFL, 0 ) ) < 0 )
return -1;
if ( fcntl ( sockfd, F_SETFL, flags | O_NONBLOCK ) < 0 )
return -1;
return 0;
}
#ifdef TEST
int main ( int argc, char* argv[] )
{
#if TESTLS
UdpSocket ls1 ( "@aaa", "@bbb" );
UdpSocket ls2 ( "@bbb", "@aaa" );
#else
UdpSocket ls1 ( 32345, "127.0.0.1", 32346 );
UdpSocket ls2 ( 32346, "127.0.0.1", 32345 );
#endif
uint8_t a[] = "test aaaaaa";
uint8_t b[] = "test bbbbbb";
uint8_t buf1[1024];
uint8_t buf2[1024];
while ( 1 )
{
ls1.Send ( a, 10 );
memset ( buf1, 0, 1024 );
ls2.Recv ( buf1, 10 );
printf ( "ls2 recv ls1 %s\n", buf1 );
ls2.Send ( b, 10 );
memset ( buf2, 0, 1024 );
ls1.Recv ( buf2, 10 );
printf ( "ls1 recv ls2 %s\n", buf2 );
sleep ( 1 );
}
return 0;
}
#endif