#include <HttpTransact.h>

Collaboration diagram for HttpTransact::_DNSLookupInfo:

Public Types
enum	{ OS_ADDR_TRY_DEFAULT, OS_ADDR_TRY_HOSTDB, OS_ADDR_TRY_CLIENT, OS_ADDR_USE_HOSTDB, OS_ADDR_USE_CLIENT }
	Origin server address source selection. More...
Public Member Functions
	_DNSLookupInfo ()
Data Fields
int	attempts
enum HttpTransact::_DNSLookupInfo:: { ... }	os_addr_style
	Origin server address source selection.
bool	lookup_success
char *	lookup_name
char	srv_hostname [MAXDNAME]
LookingUp_t	looking_up
bool	srv_lookup_success
short	srv_port
HostDBApplicationInfo	srv_app
bool	lookup_validated

Detailed Description

Definition at line 758 of file HttpTransact.h.

Member Enumeration Documentation

anonymous enum

Origin server address source selection.

If config says to use CTA (client target addr) state is OS_ADDR_TRY_CLIENT, otherwise it remains the default. If the connect fails then we switch to a USE. We go to USE_HOSTDB if (1) the HostDB lookup is successful and (2) some address other than the CTA is available to try. Otherwise we keep retrying on the CTA (USE_CLIENT) up to the max retry value. In essence we try to treat the CTA as if it were another RR value in the HostDB record.

Enumerator:

OS_ADDR_TRY_DEFAULT	Initial state, use what config says.
OS_ADDR_TRY_HOSTDB	Try HostDB data.
OS_ADDR_TRY_CLIENT	Try client target addr.
OS_ADDR_USE_HOSTDB	Force use of HostDB target address.
OS_ADDR_USE_CLIENT	Use client target addr, no fallback.

Definition at line 772 of file HttpTransact.h.

Constructor & Destructor Documentation

HttpTransact::_DNSLookupInfo::_DNSLookupInfo ( ) [inline]

Definition at line 792 of file HttpTransact.h.

References HostDBApplicationInfo::allotment, HostDBApplicationInfo::application_data_allotment::application1, HostDBApplicationInfo::application_data_allotment::application2, srv_app, and srv_hostname.

Field Documentation

int HttpTransact::_DNSLookupInfo::attempts

Definition at line 760 of file HttpTransact.h.

Referenced by HttpTransact::HandleCacheOpenReadHit(), HttpTransact::initialize_state_variables_for_origin_server(), HttpTransact::initialize_state_variables_from_request(), HttpTransact::OSDNSLookup(), HttpTransact::PPDNSLookup(), HttpTransact::try_to_expand_host_name(), and update_dns_info().

LookingUp_t HttpTransact::_DNSLookupInfo::looking_up

Definition at line 783 of file HttpTransact.h.

Referenced by HttpTransact::initialize_state_variables_from_request(), HttpTransact::OSDNSLookup(), HttpTransact::PPDNSLookup(), HttpTransact::try_to_expand_host_name(), update_dns_info(), and HttpTransact::will_this_request_self_loop().

char* HttpTransact::_DNSLookupInfo::lookup_name

Definition at line 781 of file HttpTransact.h.

Referenced by HttpTransact::build_redirect_response(), HttpTransact::HandleRequest(), HttpTransact::initialize_state_variables_for_origin_server(), HttpTransact::initialize_state_variables_from_request(), HttpTransact::OSDNSLookup(), HttpTransact::try_to_expand_host_name(), and update_dns_info().

bool HttpTransact::_DNSLookupInfo::lookup_success

Definition at line 780 of file HttpTransact.h.

Referenced by HttpTransact::handle_response_from_server(), HttpTransact::OSDNSLookup(), HttpTransact::PPDNSLookup(), HttpTransact::ReDNSRoundRobin(), HttpTransact::try_to_expand_host_name(), and HttpTransact::will_this_request_self_loop().

bool HttpTransact::_DNSLookupInfo::lookup_validated

Definition at line 790 of file HttpTransact.h.

Referenced by HttpTransact::is_response_cacheable().

enum { ... } HttpTransact::_DNSLookupInfo::os_addr_style

Origin server address source selection.

If config says to use CTA (client target addr) state is OS_ADDR_TRY_CLIENT, otherwise it remains the default. If the connect fails then we switch to a USE. We go to USE_HOSTDB if (1) the HostDB lookup is successful and (2) some address other than the CTA is available to try. Otherwise we keep retrying on the CTA (USE_CLIENT) up to the max retry value. In essence we try to treat the CTA as if it were another RR value in the HostDB record.

Referenced by HttpTransact::handle_response_from_server(), and HttpTransact::OSDNSLookup().

HostDBApplicationInfo HttpTransact::_DNSLookupInfo::srv_app

Definition at line 786 of file HttpTransact.h.

Referenced by _DNSLookupInfo().

char HttpTransact::_DNSLookupInfo::srv_hostname[MAXDNAME]

Definition at line 782 of file HttpTransact.h.

Referenced by _DNSLookupInfo().

bool HttpTransact::_DNSLookupInfo::srv_lookup_success

Definition at line 784 of file HttpTransact.h.

Referenced by HttpTransact::handle_response_from_server().

short HttpTransact::_DNSLookupInfo::srv_port

Definition at line 785 of file HttpTransact.h.