Classes
class	BaseSocketSessionForwarder
	The "base" class of `SocketSessionForwarder`. More...

class	SocketSession
	Socket session object. More...

class	SocketSessionError
	An exception indicating general errors that takes place in the socket session related class objects. More...

class	SocketSessionForwarder
	The forwarder of socket sessions. More...

class	SocketSessionReceiver
	The receiver of socket sessions. More...

Functions
ssize_t	read_data (const int fd, void *buffer_v, const size_t length)

int	recv_fd (const int sock)
	Receives a file descriptor. More...

int	send_fd (const int sock, const int fd)
	Sends a file descriptor. More...

bool	write_data (const int fd, const void *buffer_v, const size_t length)

Variables
const size_t	DEFAULT_HEADER_BUFLEN

const int	FD_OTHER_ERROR = -1

const int	FD_SYSTEM_ERROR = -2

const size_t	INITIAL_BUFSIZE = 512

const int	MAX_DATASIZE = 65535

const int	SOCKSESSION_BUFSIZE = (DEFAULT_HEADER_BUFLEN + MAX_DATASIZE) * 2

Function Documentation

Definition at line 50 of file fd.cc.

int isc::util::io::recv_fd ( const int sock )

Receives a file descriptor.

This receives a file descriptor sent over an unix domain socket. This is the counterpart of send_fd().

Returns: FD_SYSTEM_ERROR when there's an error at the operating system level (such as a system call failure). The global 'errno' variable indicates the specific error. FD_OTHER_ERROR when there's a different error.

Parameters

sock	The unix domain socket to read from. Tested and it does not work with a pipe.

Definition at line 71 of file fd_share.cc.

Sends a file descriptor.

This sends a file descriptor over an unix domain socket. This is the counterpart of recv_fd().

Returns: FD_SYSTEM_ERROR when there's an error at the operating system level (such as a system call failure). The global 'errno' variable indicates the specific error.

Parameters

sock	The unix domain socket to send to. Tested and it does not work with a pipe.
fd	The file descriptor to send. It should work with any valid file descriptor.

Definition at line 134 of file fd_share.cc.