CvsiTCPsocket Class Reference

#include <vsisocket.h>

Public Member Functions
	CvsiTCPsocket ()
	~CvsiTCPsocket ()
int	Connect (vsiIPaddress *Target)
int	Close ()
int	IsOpen ()
int	Send (char *Buffer, int Size)
int	Receive (char *Buffer, int Size)
Private Attributes
int	m_Socket
Friends
class	CvsiTCPwait

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Detailed Description

Definition at line 54 of file vsisocket.h.

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Constructor & Destructor Documentation

CvsiTCPsocket::CvsiTCPsocket

(

)

Definition at line 375 of file vsisocket.cpp.

{
    m_Socket = VSI_INVALID_SOCKET;
}

CvsiTCPsocket::~CvsiTCPsocket

(

)

Definition at line 380 of file vsisocket.cpp.

{
    if(m_Socket != VSI_INVALID_SOCKET)
    {
        Close();
    }
}

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Member Function Documentation

int CvsiTCPsocket::Close

(

void

)

Definition at line 437 of file vsisocket.cpp.

{
    if(m_Socket != VSI_INVALID_SOCKET)
    {
        shutdown( m_Socket, SHUT_RDWR );
        close(m_Socket);
        m_Socket = VSI_INVALID_SOCKET;
        return (0);
    }
    return VSI_ERROR_SOCKET_NOT_OPEN;
}

int CvsiTCPsocket::Connect

(

vsiIPaddress *

Target

)

Definition at line 400 of file vsisocket.cpp.

{
    int sock;
    struct sockaddr_in dest;

    if( m_Socket != VSI_INVALID_SOCKET )
    {
        Close();
    }

    // create TCP socket
    sock = socket (AF_INET, SOCK_STREAM, 0);
    if( sock < 0 )
    {
        RioErr << "[vsisocket] Erro no socket: " << strerror(errno) << endl;
        return VSI_ERROR_SOCKET_CREATION;
    }

    // Initialize local address
    dest.sin_family = AF_INET;
    dest.sin_addr.s_addr = Target->Host;
    dest.sin_port = Target->Port;

    // connect socket to remote socket
    if( connect ( sock, (sockaddr *) &dest, sizeof( dest ) ) < 0 )
    {
        RioErr << "[vsisocket] Erro no connect: " << strerror(errno) << endl;
        close (sock);
        return VSI_ERROR_SOCKET_CONNECT;
    }

    m_Socket = sock;
    return( 0 );
}

int CvsiTCPsocket::IsOpen

(

)

Definition at line 390 of file vsisocket.cpp.

{
    if(m_Socket == VSI_INVALID_SOCKET)
        return false;
    else
        return true;
}

int CvsiTCPsocket::Receive	(	char *	Buffer,
		int	Size
	)

Definition at line 490 of file vsisocket.cpp.

{

    if(m_Socket == VSI_INVALID_SOCKET)
    {
        return VSI_ERROR_SOCKET_NOT_OPEN;
    }


    int nb;
    int nrecv = 0;
    char* bf = Buffer;

    // loop while not all bytes sent
    // (see comment bellow)
    while(1)
    {
        nb  = recv ( m_Socket, bf, nBytes-nrecv, MSG_NOSIGNAL );
        // Check if there was an error
        if(nb <= 0)
        {
            Rioperror("CvsiTCPsocket::Receive()");

            return VSI_ERROR_SOCKET_RECV;
        }
        else
        {
            nrecv+=nb;
            bf+=nb;
            // This should be "==". Use ">=" just in case, to avoid infinity loop
            if(nrecv >= nBytes)
            {
                return 0;
            }
        }
    }

    return (0);

}

int CvsiTCPsocket::Send	(	char *	Buffer,
		int	Size
	)

Definition at line 451 of file vsisocket.cpp.

{
    if(m_Socket == VSI_INVALID_SOCKET)
    {
        return VSI_ERROR_SOCKET_NOT_OPEN;
    }

    int   nb;
    int   nsent = 0;
    char *bf    = Buffer;

    // loop while not all bytes sent
    // (see comment bellow)
    while( true )
    {
        nb = send ( m_Socket, bf, nBytes-nsent, MSG_NOSIGNAL );

        // Check if there was an error
        if( nb < 0 )
        {
            return VSI_ERROR_SOCKET_SEND;
        }
        else
        {
            nsent+=nb;
            bf+=nb;
            // This should be "==". Use ">=" just in case, to avoid
            //infinity loop
            if(nsent >= nBytes)
            {
                return 0;
            }
        }
    }
}

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Friends And Related Function Documentation

friend class CvsiTCPwait [friend]

Definition at line 57 of file vsisocket.h.

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Field Documentation

int CvsiTCPsocket::m_Socket [private]

Definition at line 67 of file vsisocket.h.

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The documentation for this class was generated from the following files:

• vsisocket.h
• vsisocket.cpp