Z39.50 connection (low-level client) More...

#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <signal.h>
#include <assert.h>
#include <yaz/log.h>
#include <yaz/comstack.h>
#include <yaz/tcpip.h>
#include "connection.h"
#include "session.h"
#include "host.h"
#include "client.h"
#include "settings.h"

Data Structures
struct	connection
	Represents a physical, reusable connection to a remote Z39.50 host. More...

Functions
static int	connection_use (int delta)
int	connections_count (void)
static int	connection_connect (struct connection *con, iochan_man_t iochan_man)
static int	connection_is_idle (struct connection *co)
ZOOM_connection	connection_get_link (struct connection *co)
static void	remove_connection_from_host (struct connection *con)
static void	connection_destroy (struct connection *co)
static struct connection *	connection_create (struct client cl, struct host host, int operation_timeout, int session_timeout, iochan_man_t iochan_man)
static void	non_block_events (struct connection *co)
void	connection_continue (struct connection *co)
static void	connection_handler (IOCHAN iochan, int event)
static void	connection_release (struct connection *co)
void	connect_resolver_host (struct host *host, iochan_man_t iochan_man)
static struct host *	connection_get_host (struct connection *con)
int	client_prep_connection (struct client cl, int operation_timeout, int session_timeout, iochan_man_t iochan_man, const struct timeval abstime)

Variables
static YAZ_MUTEX	g_mutex = 0
static int	no_connections = 0
static int	total_no_connections = 0

Detailed Description

Z39.50 connection (low-level client)

Definition in file connection.c.

Function Documentation

int client_prep_connection	(	struct client *	cl,
		int	operation_timeout,
		int	session_timeout,
		iochan_man_t	iochan_man,
		const struct timeval *	abstime
	)

void connect_resolver_host	(	struct host *	host,
		iochan_man_t	iochan_man
	)

Definition at line 352 of file connection.c.

References connection::client, client_start_search(), connection::Conn_Closed, connection_connect(), connection_destroy(), host::connections, host::ipport, host::mutex, connection::next, remove_connection_from_host(), and connection::state.

Referenced by iochan_handler().

static int connection_connect	(	struct connection *	con,
		iochan_man_t	iochan_man
	)

static

Definition at line 401 of file connection.c.

References connection::client, Client_Connecting, client_get_database(), client_set_state(), connection_get_host(), connection_handler(), connection::iochan, iochan_add(), iochan_create(), iochan_setdata, iochan_settimeout, host::ipport, connection::link, connection::operation_timeout, PACKAGE_NAME, host::proxy, PZ_APDULOG, PZ_AUTHENTICATION, PZ_NEGOTIATION_CHARSET, PZ_SRU, PZ_SRU_VERSION, session_setting_oneval(), connection::state, host::tproxy, host::url, and VERSION.

Referenced by connect_resolver_host(), and connection_create().

void connection_continue ( struct connection * co )

Definition at line 279 of file connection.c.

References connection::iochan, iochan_setfd, iochan_setflags, connection::link, and non_block_events().

Referenced by client_fetch_more(), client_send_raw_present(), and client_start_search().

static struct connection* connection_create	(	struct client *	cl,
		struct host *	host,
		int	operation_timeout,
		int	session_timeout,
		iochan_man_t	iochan_man
	)