From: Jeff Garzik <jgarzik@exmulti•com>
To: Mike Hearn <mike@plan99•net>
Cc: Bitcoin Development <bitcoin-development@lists•sourceforge.net>
Subject: Re: [Bitcoin-development] New P2P commands for diagnostics, SPV clients
Date: Fri, 15 Jun 2012 09:26:18 -0400 [thread overview]
Message-ID: <CA+8xBpcwhQPQRe=stYb9xksLsTbiABKLS7PZnRtvPga6AmSg4Q@mail.gmail.com> (raw)
In-Reply-To: <CANEZrP0kNZDByHpK2=UjP+ag0X1KmqHxnJdm=e_pWMitP4QvvA@mail.gmail.com>
On Thu, Jun 14, 2012 at 7:52 AM, Mike Hearn <mike@plan99•net> wrote:
>> filterinit(false positive rate, number of elements): initialize
>> filterload(data): input a serialized bloom filter table metadata and data.
>
> Why not combine these two?
This is a fair point that sipa raised.
Consensus concluded that 'filterload' includes all necessary metadata
required to initialize a bloom filter. That implies 'filterinit'
would only be needed for 'filteradd'. If we don't think 'filteradd'
has a compelling use case, filterinit + filteradd can be dropped.
>> 'filterload' and 'filteradd' enable special behavior changes for
>> 'mempool' and existing P2P commands, whereby only transactions
>> matching the bloom filter will be announced to the connection, and
>> only matching transactions will be sent inside serialized blocks.
>
> Need to specify the format of how these arrive. It means that when a
> new block is found instead of inv<->getdata<->block we'd see something
> like inv<->getdata<->merkleblock where a "merkleblock" structure is a
> header + list of transactions + list of merkle branches linking them
> to the root. I think CMerkleTx already knows how to serialize this,
> but it redundantly includes the block hash which would not be
> necessary for a merkleblock message.
Yes, the format is something that must be hashed out (no pun
intended). Need input from potential users about what information
they might need.
--
Jeff Garzik
exMULTI, Inc.
jgarzik@exmulti•com
next prev parent reply other threads:[~2012-06-15 13:26 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-06-13 20:46 Jeff Garzik
2012-06-14 11:52 ` Mike Hearn
2012-06-15 11:52 ` Mike Hearn
2012-06-15 13:19 ` Matt Corallo
2012-06-15 13:23 ` Mike Hearn
2012-06-15 14:39 ` Matt Corallo
2012-06-16 8:27 ` Mike Hearn
2012-06-19 19:09 ` Matt Corallo
2012-07-21 11:45 ` Mike Hearn
2012-07-23 7:54 ` Andreas Petersson
2012-07-23 16:40 ` Matt Corallo
2012-07-24 8:16 ` Mike Hearn
2012-06-15 13:26 ` Jeff Garzik [this message]
2012-06-15 13:43 ` Mike Hearn
2012-06-15 14:56 ` Matt Corallo
2012-06-15 15:32 ` Jeff Garzik
2012-06-15 16:20 ` Matt Corallo
2012-06-15 18:42 ` Amir Taaki
2012-06-16 8:25 ` Mike Hearn
2012-06-15 15:43 ` Simon Barber
2012-06-15 16:40 ` Jeff Garzik
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