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Impala::Util::Channel Class Reference

#include <Channel.h>

Collaboration diagram for Impala::Util::Channel:

[legend]List of all members.

Public Types
typedef void(*)	FP_INFO (CString msg)
	Pointer to a function to be called for info messages in case no listener is provided.
typedef void(*)	FP_ERROR (CString msg)
	Pointer to a function to be called for error messages in case no listener is provided.
typedef int(*)	FP_REQUEST (char *buf, int len, int bufSize)
	Pointer to a function to be called by "Serve" upon arrival of a request in case no listener is provided.
typedef void(*)	FP_IDLE ()
	Pointer to a function to be called by the non-blocking "Serve" whenever the socket is idle, in case no listener is provided.
Public Member Functions
	Channel (int port, int nrPorts, ChannelListener *listener=0)
	Constructor for the server side of the channel.
	Channel (String serverName, int port)
	Constructor for the client side of the channel.
	~Channel ()
	Destructor.
int	GetNrPorts () const
	The number of ports used by this channel.
int	GetPortNumber (int idx) const
	The actual port number for the given index (range = [0.
String	GetCurRequestConnection () const
	The machine that did the current request.
int	GetCurRequestPort () const
	The port of the current request.
String	GetServerInfo ()
	The name:port of the server.
bool	Valid ()
	Indicates whether this channel has had errors.
void	SetListener (ChannelListener *listener)
	Register a listener for this channel.
void	SetMessageFunc (FP_INFO fpInfo, FP_ERROR fpError)
	Sets functions to be called for info&error messages in case no listener is provided.
char *	Buffer ()
	THE buffer of this channel.
void	Serve (FP_REQUEST fpRequest, FP_IDLE fpIdle=0)
	Start acting as a server and forward requests to listener or fpRequest.
void	Serve (bool callbackOnIdle=false)
	Start acting as a server and forward requests to either mFpRequest or to the listener.
int	SendRequest (int len)
	Sends the message of len bytes in THE buffer to the server and puts the answer in THE buffer.
bool	LastSendHadError ()
	Indicates whether last SendRequest call resulted in an error.
void	MaximizeSendRecvBuffer ()
	Maximize send and recv buffer size of the socket Hmmm, doesn't seems useful?
void	Close ()
	Close the channel.
Static Public Attributes
static const int	DATA_BUFFER_SIZE = 10485760
	The size of THE buffer of this channel.
Private Types
typedef int	socklen_t
typedef u_long	in_addr_t
Private Member Functions
void	InitSocket ()
void	CloseSocket (SOCKET sock)
int	WaitForSocketEvent ()
	Wait for an event on one of the sockets.
int	SendLarge (SOCKET sock, int nrData)
int	RecvLarge (SOCKET sock)
int	HandleRequest (char *buf, int len, int bufSize)
void	HandleIdle ()
void	HandleInfo (CString msg)
void	HandleError (CString msg, bool isSockError)
void	HandleDisconnect (int port)
Private Attributes
bool	mIsServer
String	mServerName
int	mPort
int	mNrPorts
std::vector< SOCKET >	mSock
std::vector< bool >	mSockConnected
std::vector< String >	mConnection
std::vector< bool >	mSockEvent
std::vector< SOCKET >	mMsgSock
std::vector< bool >	mMsgSockEvent
char *	mBuffer
int	mNrError
int	mCurRequestSock
FP_INFO	mFpInfo
FP_ERROR	mFpError
FP_REQUEST	mFpRequest
FP_IDLE	mFpIdle
bool	mCallbackOnIdle
ChannelListener *	mListener
	ILOG_VAR_DECL
Static Private Attributes
static const int	CTR_HEADER_SIZE = 20

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Detailed Description

Definition at line 47 of file Channel.h.

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

• Util/Channel.h

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