cached_resolve_t Struct Reference

Public Member Functions
	HT_ENTRY (cached_resolve_t)
Data Fields
	result
uint8_t	state
uint8_t	is_reverse
time_t	expire
uint32_t	ttl
pending_connection_t *	pending_connections
int	minheap_idx

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Detailed Description

A DNS request: possibly completed, possibly pending; cached_resolve structs are stored at the OR side in a hash table, and as a linked list from oldest to newest.

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Member Function Documentation

cached_resolve_t::HT_ENTRY

(

cached_resolve_t

)

[inline]

< IPv6 addr for address.

< IPv4 addr for address.

< Hostname for address (if a reverse lookup)

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Field Documentation

uint8_t cached_resolve_t::state

Is this cached entry pending/done/valid/failed?

Referenced by add_answer_to_cache(), assert_resolve_ok(), dns_cancel_pending_resolve(), dns_found_answer(), dns_resolve_impl(), and purge_expired_resolves().

uint8_t cached_resolve_t::is_reverse

Is this a reverse (addr-to-hostname) lookup?

Referenced by _free_cached_resolve(), add_answer_to_cache(), assert_resolve_ok(), dns_resolve_impl(), and purge_expired_resolves().

time_t cached_resolve_t::expire

Remove items from cache after this time.

Referenced by _compare_cached_resolves_by_expiry(), dns_resolve_impl(), purge_expired_resolves(), and set_expiry().

uint32_t cached_resolve_t::ttl

What TTL did the nameserver tell us?

Referenced by add_answer_to_cache(), assert_resolve_ok(), and dns_resolve_impl().

pending_connection_t* cached_resolve_t::pending_connections

Connections that want to know when we get an answer for this resolve.

Referenced by _free_cached_resolve(), assert_connection_edge_not_dns_pending(), assert_resolve_ok(), connection_dns_remove(), dns_cancel_pending_resolve(), dns_found_answer(), dns_resolve_impl(), and purge_expired_resolves().

int cached_resolve_t::minheap_idx

Position of this element in the heap

Referenced by dns_resolve_impl().

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

• dns.c