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Header change for message store.

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git-svn-id: file:///svn/unbound/trunk@232 be551aaa-1e26-0410-a405-d3ace91eadb9
This commit is contained in:
Wouter Wijngaards 2007-04-10 05:39:12 +00:00
parent d51196ddc0
commit 286892dadc
2 changed files with 26 additions and 12 deletions
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5
doc/Changelog
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@ -1,3 +1,8 @@
10 April 2007: Wouter
- Improved alignment of reply_info packet, nice for 32 and 64 bit.
- Put RRset counts in reply_info, because the number of RRs can change
due to RRset updates.
5 April 2007: Wouter
- discussed packed rrset with Jelte.

33
util/data/msgreply.h
View file

@ -97,6 +97,14 @@ struct reply_info {
/** the flags for the answer, host byte order. */
uint16_t flags;
/**
* Number of RRs in the query section.
* If qdcount is not 0, then it is 1, and the data that appears
* in the reply is the same as the query_info.
* Host byte order.
*/
uint16_t qdcount;
/**
* TTL of the entire reply (for negative caching).
* only for use when there are 0 RRsets in this message.
@ -104,23 +112,24 @@ struct reply_info {
*/
uint32_t ttl;
/**
* network order counts: qdcount ancount nscount arcount.
* so this is wireformat for the counts as they appear in the message.
* If qdcount is not 0, then it is 1, and the data that appears
* in the reply is the same as the query_info.
/**
* Number of RRsets in each section.
* The answer section. Add up the RRs in every RRset to calculate
* the number of RRs, and the count for the dns packet.
* The number of RRs in RRsets can change due to RRset updates.
*/
uint16_t counts[4];
size_t an_numrrsets;
/** Total number of rrsets in reply: ancount+nscount+arcount.
* Use the accessor function to get this value.
*/
size_t num_rrsets;
/** Count of authority section RRsets */
size_t ns_numrrsets;
/** Count of additional section RRsets */
size_t ar_numrrsets;
/**
* List of pointers (only) to the rrsets in the order in which
* they appear in the reply message.
* Number of elements is ancount+nscount+arcount.
* Number of elements is ancount+nscount+arcount RRsets.
* This is a pointer to that array.
* Use the accessor function for access.
*/
@ -128,7 +137,7 @@ struct reply_info {
/**
* Packed array of ids (see counts) and pointers to packed_rrset_key.
* The number equals ancount+nscount+arcount.
* The number equals ancount+nscount+arcount RRsets.
* These are sorted in ascending pointer, the locking order. So
* this list can be locked (and id, ttl checked), to see if
* all the data is available and recent enough.