src/vfer_accept_queue.h File Reference

Header file for accept_queue.c. More...

#include <stdio.h>
#include <pthread.h>
#include "vfer_packet.h"

Go to the source code of this file.

Data Structures
struct	accept_queue
	A doubly linked list of backlogged connections waiting to be accepted. More...
struct	queued_conn
	A queued connection link in the accept_queue doubly linked list. More...
Functions
accept_queue *	Accept_Queue_Create (int backlog)
void	Accept_Queue_Delete (accept_queue *ac)
queued_conn *	Accept_Queue_Dequeue (accept_queue *ac)
int	Accept_Queue_Enqueue (accept_queue *ac, int fd, struct sockaddr sa, struct packet *request)

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Detailed Description

Header file for accept_queue.c.

Author:

Ivan Beschastnikh

Defines the necessary data structures and prototypes.

• 05/26/05 ivan created

Definition in file vfer_accept_queue.h.

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Function Documentation

accept_queue* Accept_Queue_Create

(

int

backlog

)

Creates the accept queue structure and initializes the data members.

Parameters:

backlog

the max number of connection to queue in this queue. backlog > 0 right now there is no limit on the size of the backlog

Returns:

pointer to an new accept_queue with backlog max depth on succes NULL on error

Definition at line 44 of file vfer_accept_queue.c.

void Accept_Queue_Delete

(

accept_queue *

ac

)

Deletes the accept queue structure.

Parameters:

ac

accept_queue pointer

Definition at line 64 of file vfer_accept_queue.c.

queued_conn* Accept_Queue_Dequeue

(

accept_queue *

ac

)

Removes and returns a queued connection from the front of the queue.

This function does not block.

Parameters:

ac

accept queue pointer from which we dequeu

Returns:

queued connection structure on success (if not empty queue) NULL on error (empty queue or otherwise)

Definition at line 159 of file vfer_accept_queue.c.

int Accept_Queue_Enqueue	(	accept_queue *	ac,
		int	fd,
		struct sockaddr	sa,
		packet *	request
	)

Adds a queued connection to a queue.

If the queue is full, then we merely wrap around and overwrite old connections

Parameters:

	ac	accept_queue pointer to which we are trying to enqueue the connection
	fd	the file descriptor of the open connection
	sa	the socke address strucutre describing the remote connection
	request	request packet associated with the new connection

Returns:

0 on succes -1 on error

Definition at line 92 of file vfer_accept_queue.c.

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