ApacheTrafficServer: DNSEntry Struct Reference

One DNSEntry is allocated per outstanding request. More...

#include <P_DNSProcessor.h>

Inherits Continuation.

Collaboration diagram for DNSEntry:

Collaboration graph

Public Member Functions
	LINK (DNSEntry, dup_link)
	Que (DNSEntry, dup_link) dups
int	mainEvent (int event, Event *e)
	Handle timeout events.
int	delayEvent (int event, Event *e)
int	post (DNSHandler h, HostEnt ent)
int	postEvent (int event, Event *e)
void	init (const char x, int len, int qtype_arg, Continuation acont, DNSProcessor::Options const &opt)
	DNSEntry ()
Data Fields
int	id [MAX_DNS_RETRIES]
int	qtype
	Type of query to send.
HostResStyle	host_res_style
	Preferred IP address family.
int	retries
int	which_ns
ink_hrtime	submit_time
ink_hrtime	send_time
char	qname [MAXDNAME]
int	qname_len
int	orig_qname_len
char **	domains
EThread *	submit_thread
Action	action
Event *	timeout
Ptr< HostEnt >	result_ent
DNSHandler *	dnsH
bool	written_flag
bool	once_written_flag
bool	last

Detailed Description

One DNSEntry is allocated per outstanding request.

This continuation handles TIMEOUT events for the request as well as storing all information about the request and its status.

Definition at line 148 of file P_DNSProcessor.h.

Constructor & Destructor Documentation

DNSEntry::DNSEntry ( ) [inline]

Definition at line 178 of file P_DNSProcessor.h.

References qname.

Member Function Documentation

int DNSEntry::delayEvent	(	int	event,
		Event *	e
	)

Definition at line 1017 of file DNS.cc.

References DNS_DELAY_PERIOD, EVENT_IMMEDIATE, Continuation::handleEvent(), DNSProcessor::handler, mainEvent(), Event::schedule_in(), and SET_HANDLER.

Referenced by mainEvent().

void DNSEntry::init	(	const char *	x,
		int	len,
		int	qtype_arg,
		Continuation *	acont,
		DNSProcessor::Options const &	opt
	)

DNSEntry::LINK	(	DNSEntry	,
		dup_link
	)

int DNSEntry::mainEvent	(	int	event,
		Event *	e
	)

Handle timeout events.

Definition at line 1030 of file DNS.cc.

References Debug, delayEvent(), DNS_DECREMENT_DYN_STAT, dns_in_flight_stat, dns_result(), dns_search, dnsH, ts_imp_res_state::dnsrch, domains, Queue< C, L >::enqueue(), DNSHandler::entries, EVENT_IMMEDIATE, EVENT_INTERVAL, get_entry(), Continuation::handleEvent(), DNSProcessor::handler, DNSHandler::in_flight, ink_assert, ink_strlcpy(), DNSHandler::m_res, orig_qname_len, qname, qname_len, qtype, result_ent, SET_HANDLER, strnchr(), timeout, DNSHandler::txn_lookup_timeout, write_dns(), and written_flag.

Referenced by delayEvent(), and init().

int DNSEntry::post	(	DNSHandler *	h,
		HostEnt *	ent
	)

Definition at line 1243 of file DNS.cc.

References action, Action::cancel(), Debug, Action::mutex, Continuation::mutex, MUTEX_TRY_LOCK, postEvent(), qname, result_ent, EThread::schedule_imm_signal(), SET_HANDLER, submit_thread, and timeout.

Referenced by dns_result().

int DNSEntry::postEvent	(	int	event,
		Event *	e
	)

Definition at line 1266 of file DNS.cc.

References action, Action::cancelled, Action::continuation, Debug, DNS_EVENT_LOOKUP, dnsEntryAllocator, Continuation::handleEvent(), Continuation::mutex, Action::mutex, qname, and result_ent.

Referenced by dns_result(), and post().

DNSEntry::Que	(	DNSEntry	,
		dup_link
	)

Field Documentation

Action DNSEntry::action

Definition at line 162 of file P_DNSProcessor.h.

Referenced by dns_result(), DNSProcessor::getby(), init(), post(), and postEvent().

DNSHandler* DNSEntry::dnsH

Definition at line 165 of file P_DNSProcessor.h.

Referenced by init(), and mainEvent().

char** DNSEntry::domains

Definition at line 160 of file P_DNSProcessor.h.

Referenced by dns_result(), and mainEvent().

HostResStyle DNSEntry::host_res_style

Preferred IP address family.

Definition at line 152 of file P_DNSProcessor.h.

Referenced by init().

int DNSEntry::id[MAX_DNS_RETRIES]

Definition at line 150 of file P_DNSProcessor.h.

Referenced by dns_result(), and write_dns_event().

bool DNSEntry::last

Definition at line 168 of file P_DNSProcessor.h.

Referenced by dns_result().

bool DNSEntry::once_written_flag

Definition at line 167 of file P_DNSProcessor.h.

Referenced by write_dns_event().

int DNSEntry::orig_qname_len

Definition at line 159 of file P_DNSProcessor.h.

Referenced by dns_result(), init(), and mainEvent().

char DNSEntry::qname[MAXDNAME]

Definition at line 157 of file P_DNSProcessor.h.

Referenced by dns_process(), dns_result(), DNSEntry(), init(), mainEvent(), post(), postEvent(), and write_dns_event().

int DNSEntry::qname_len

Definition at line 158 of file P_DNSProcessor.h.

Referenced by dns_process(), dns_result(), init(), and mainEvent().

int DNSEntry::qtype

Type of query to send.

Definition at line 151 of file P_DNSProcessor.h.

Referenced by dns_process(), dns_result(), init(), mainEvent(), and write_dns_event().

Ptr<HostEnt> DNSEntry::result_ent

Definition at line 164 of file P_DNSProcessor.h.

Referenced by dns_result(), mainEvent(), post(), and postEvent().

int DNSEntry::retries

Definition at line 153 of file P_DNSProcessor.h.

Referenced by dns_result(), DNSProcessor::getby(), and write_dns_event().

ink_hrtime DNSEntry::send_time

Definition at line 156 of file P_DNSProcessor.h.

Referenced by dns_process(), and write_dns_event().

EThread* DNSEntry::submit_thread

Definition at line 161 of file P_DNSProcessor.h.

Referenced by dns_result(), init(), and post().

ink_hrtime DNSEntry::submit_time

Definition at line 155 of file P_DNSProcessor.h.

Referenced by dns_result(), and init().

Event* DNSEntry::timeout

Definition at line 163 of file P_DNSProcessor.h.

Referenced by dns_result(), mainEvent(), post(), and write_dns_event().

int DNSEntry::which_ns

Definition at line 154 of file P_DNSProcessor.h.

Referenced by write_dns_event().

bool DNSEntry::written_flag

Definition at line 166 of file P_DNSProcessor.h.

Referenced by dns_process(), mainEvent(), write_dns(), and write_dns_event().

The documentation for this struct was generated from the following files: