mirror of
http://git.haproxy.org/git/haproxy.git/
synced 2024-12-11 22:15:14 +00:00
3acf8c3da8
Most protocols will be able to share a single unbind_all_listeners() primitive. Provide it in protocols.c.
109 lines
4.1 KiB
C
109 lines
4.1 KiB
C
/*
|
|
include/proto/protocols.h
|
|
This file declares generic protocol primitives.
|
|
|
|
Copyright (C) 2000-2007 Willy Tarreau - w@1wt.eu
|
|
|
|
This library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Lesser General Public
|
|
License as published by the Free Software Foundation, version 2.1
|
|
exclusively.
|
|
|
|
This library is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with this library; if not, write to the Free Software
|
|
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
|
|
#ifndef _PROTO_PROTOCOLS_H
|
|
#define _PROTO_PROTOCOLS_H
|
|
|
|
#include <types/protocols.h>
|
|
|
|
/* This function adds the specified listener's file descriptor to the polling
|
|
* lists if it is in the LI_LISTEN state. The listener enters LI_READY or
|
|
* LI_FULL state depending on its number of connections.
|
|
*/
|
|
void enable_listener(struct listener *listener);
|
|
|
|
/* This function removes the specified listener's file descriptor from the
|
|
* polling lists if it is in the LI_READY or in the LI_FULL state. The listener
|
|
* enters LI_LISTEN.
|
|
*/
|
|
void disable_listener(struct listener *listener);
|
|
|
|
/* This function adds all of the protocol's listener's file descriptors to the
|
|
* polling lists when they are in the LI_LISTEN state. It is intended to be
|
|
* used as a protocol's generic enable_all() primitive, for use after the
|
|
* fork(). It puts the listeners into LI_READY or LI_FULL states depending on
|
|
* their number of connections. It always returns ERR_NONE.
|
|
*/
|
|
int enable_all_listeners(struct protocol *proto);
|
|
|
|
/* This function removes all of the protocol's listener's file descriptors from
|
|
* the polling lists when they are in the LI_READY or LI_FULL states. It is
|
|
* intended to be used as a protocol's generic disable_all() primitive. It puts
|
|
* the listeners into LI_LISTEN, and always returns ERR_NONE.
|
|
*/
|
|
int disable_all_listeners(struct protocol *proto);
|
|
|
|
/* This function closes the listening socket for the specified listener,
|
|
* provided that it's already in a listening state. The listener enters the
|
|
* LI_ASSIGNED state. It always returns ERR_NONE. This function is intended
|
|
* to be used as a generic function for standard protocols.
|
|
*/
|
|
int unbind_listener(struct listener *listener);
|
|
|
|
/* This function closes all listening sockets bound to the protocol <proto>,
|
|
* and the listeners end in LI_ASSIGNED state if they were higher. It does not
|
|
* detach them from the protocol. It always returns ERR_NONE.
|
|
*/
|
|
int unbind_all_listeners(struct protocol *proto);
|
|
|
|
/* Delete a listener from its protocol's list of listeners. The listener's
|
|
* state is automatically updated from LI_ASSIGNED to LI_INIT. The protocol's
|
|
* number of listeners is updated. Note that the listener must have previously
|
|
* been unbound. This is the generic function to use to remove a listener.
|
|
*/
|
|
void delete_listener(struct listener *listener);
|
|
|
|
/* Registers the protocol <proto> */
|
|
void protocol_register(struct protocol *proto);
|
|
|
|
/* Unregisters the protocol <proto>. Note that all listeners must have
|
|
* previously been unbound.
|
|
*/
|
|
void protocol_unregister(struct protocol *proto);
|
|
|
|
/* binds all listeneres of all registered protocols. Returns a composition
|
|
* of ERR_NONE, ERR_RETRYABLE, ERR_FATAL.
|
|
*/
|
|
int protocol_bind_all(void);
|
|
|
|
/* unbinds all listeners of all registered protocols. They are also closed.
|
|
* This must be performed before calling exit() in order to get a chance to
|
|
* remove file-system based sockets and pipes.
|
|
* Returns a composition of ERR_NONE, ERR_RETRYABLE, ERR_FATAL.
|
|
*/
|
|
int protocol_unbind_all(void);
|
|
|
|
/* enables all listeners of all registered protocols. This is intended to be
|
|
* used after a fork() to enable reading on all file descriptors. Returns a
|
|
* composition of ERR_NONE, ERR_RETRYABLE, ERR_FATAL.
|
|
*/
|
|
int protocol_enable_all(void);
|
|
|
|
|
|
#endif /* _PROTO_PROTOCOLS_H */
|
|
|
|
/*
|
|
* Local variables:
|
|
* c-indent-level: 8
|
|
* c-basic-offset: 8
|
|
* End:
|
|
*/
|