A pool of server sessions. More...

#include <HttpSessionManager.h>

Collaboration diagram for ServerSessionPool:

Data Structures
struct	HostHashing
	Interface class for FQDN map. More...
struct	IPHashing
	Interface class for IP map. More...
Public Member Functions
	ServerSessionPool ()
	Default constructor.
int	eventHandler (int event, void *data)
	Handle events from server sessions.
HttpServerSession *	acquireSession (sockaddr const *addr, INK_MD5 const &host_hash, TSServerSessionSharingMatchType match_style)
	Get a session from the pool.
void	releaseSession (HttpServerSession *ss)
	Release a session to to pool.
void	purge ()
	Close all sessions and then clear the table.
Static Public Member Functions
static bool	match (HttpServerSession ss, sockaddr const addr, INK_MD5 const &host_hash, TSServerSessionSharingMatchType match_style)
	Check if a session matches address and host name.
Data Fields
IPHashTable	m_ip_pool
HostHashTable	m_host_pool
Protected Types
typedef TSHashTable< IPHashing >	IPHashTable
	Sessions by IP address.
typedef TSHashTable< HostHashing >	HostHashTable
	Sessions by host name.

Detailed Description

A pool of server sessions.

This is a continuation so that it can get callbacks from the server sessions. This is used to track remote closes on the sessions so they can be cleaned up.

Definition at line 56 of file HttpSessionManager.h.

Member Typedef Documentation

typedef TSHashTable<HostHashing> ServerSessionPool::HostHashTable [protected]

Sessions by host name.

Definition at line 92 of file HttpSessionManager.h.

typedef TSHashTable<IPHashing> ServerSessionPool::IPHashTable [protected]

Sessions by IP address.

Definition at line 91 of file HttpSessionManager.h.

Constructor & Destructor Documentation

ServerSessionPool::ServerSessionPool ( )

Default constructor.

Constructs an empty pool.

Definition at line 48 of file HttpSessionManager.cc.

References eventHandler(), m_host_pool, m_ip_pool, TSHashTable< HostHashing >::MANUAL, TSHashTable< IPHashing >::MANUAL, SET_HANDLER, and TSHashTable< H >::setExpansionPolicy().

Member Function Documentation

HttpServerSession * ServerSessionPool::acquireSession	(	sockaddr const *	addr,
		INK_MD5 const &	host_hash,
		TSServerSessionSharingMatchType	match_style
	)

Get a session from the pool.

The session is selected based on match_style equivalently to match. If found the session is removed from the pool.

Returns:: A pointer to the session or NULL if not matching session was found.

Definition at line 78 of file HttpSessionManager.cc.

References ats_ip_port_cast(), TSHashTable< H >::find(), m_host_pool, m_ip_pool, TSHashTable< H >::remove(), TS_SERVER_SESSION_SHARING_MATCH_HOST, TS_SERVER_SESSION_SHARING_MATCH_IP, and TS_SERVER_SESSION_SHARING_MATCH_NONE.

Referenced by HttpSessionManager::acquire_session().

int ServerSessionPool::eventHandler	(	int	event,
		void *	data
	)

Handle events from server sessions.

Definition at line 137 of file HttpSessionManager.cc.

References HttpConfig::acquire(), HttpServerSession::con_id, HttpServerSession::connection_count, Debug, HttpServerSession::do_io_close(), HttpServerSession::enable_origin_connection_limiting, TSHashTable< H >::find(), NetVConnection::get_active_timeout(), HttpDebugNames::get_event_name(), NetVConnection::get_inactivity_timeout(), HttpServerSession::get_netvc(), NetVConnection::get_remote_addr(), ConnectionCount::getCount(), HSS_KA_SHARED, ink_assert, ink_release_assert, m_host_pool, m_ip_pool, HttpConfigParams::origin_min_keep_alive_connections, HttpConfig::release(), TSHashTable< H >::remove(), HttpServerSession::server_ip, NetVConnection::set_active_timeout(), NetVConnection::set_inactivity_timeout(), HttpServerSession::state, VC_EVENT_ACTIVE_TIMEOUT, VC_EVENT_EOS, VC_EVENT_ERROR, VC_EVENT_INACTIVITY_TIMEOUT, VC_EVENT_READ_READY, and Warning.

Referenced by ServerSessionPool().

bool ServerSessionPool::match	(	HttpServerSession *	ss,
		sockaddr const *	addr,
		INK_MD5 const &	host_hash,
		TSServerSessionSharingMatchType	match_style
	)			`[static]`