From: Jeff Garzik <jgarzik@bitpay•com>
To: Mike Hearn <mike@plan99•net>
Cc: Bitcoin Dev <bitcoin-development@lists•sourceforge.net>
Subject: Re: [Bitcoin-development] NODE_EXT_SERVICES and advertising related services
Date: Fri, 8 Aug 2014 08:15:19 -0400 [thread overview]
Message-ID: <CAJHLa0O98nfdiewzk-QV_Xw5ytVjas=pW9s2Gxjik7x+ttZFng@mail.gmail.com> (raw)
In-Reply-To: <CANEZrP2UFMDJ+88MU=RTyU4FV_HCHwuHLmd5S9aK2AZ7DJ+j7g@mail.gmail.com>
getutxos is a special case, since we already maintain that index as
part of normal operation.
While I dislike some aspects of getutxos (covered elsewhere), if
merged, it would be more appropriate as a special case to keep
getutxos fully internal to bitcoind for implementation reasons.
On Fri, Aug 8, 2014 at 8:11 AM, Mike Hearn <mike@plan99•net> wrote:
>> Something like `getutxos` or this proposal could be implemented as an
>> external application or script, instead of having to integrate
>> everything into bitcoind.
>
>
> Right, although getutxos needs access to the UTXO set which bitcoind already
> has. An external plugin would have to recalculate it from scratch which
> seems redundant.
>
> However there are many other useful services that could be added in such a
> way, like -txindex or the nLockTime storage facility we talked about the
> other day.
>
>>
>> Bitcoind would need a local interprocess message bus for that
>
>
> Maybe, that feels like it could be overkill though. Probably just something
> like
>
> ./bitcoind -servicecookie=<long random string> -allowextservices=127.0.0.1/8
>
> and then any program can connect to bitcoind as normal, send "registersrv"
> with the cookie and a list of command ids it's interested in, maybe a
> service bit to set, and start receiving those messages wrapped in a new
> structure that gives some kind of client ID (like IP address). So any
> library that can do the basic P2P protocol could then be extended with not
> much code to get a multiplexed stream of messages from different clients.
>
> An additional standalone program can then bridge this mechanism to running a
> shell command for particular messages, though given the history of shell
> based exploits I'd feel safer with something that doesn't do that ....
--
Jeff Garzik
Bitcoin core developer and open source evangelist
BitPay, Inc. https://bitpay.com/
next prev parent reply other threads:[~2014-08-08 12:15 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-08-08 3:38 Jeff Garzik
2014-08-08 9:45 ` Mike Hearn
2014-08-08 9:56 ` Wladimir
2014-08-08 10:01 ` Mike Hearn
2014-08-08 10:15 ` Wladimir
2014-08-08 10:26 ` Wladimir
2014-08-08 10:41 ` Christian Decker
2014-08-08 11:22 ` Jeff Garzik
2014-08-08 11:33 ` Jeff Garzik
2014-08-08 11:38 ` Mike Hearn
2014-08-08 11:59 ` Wladimir
2014-08-08 12:06 ` Jeff Garzik
2014-08-08 12:11 ` Jeff Garzik
2014-08-08 12:15 ` Wladimir
2014-08-08 12:11 ` Mike Hearn
2014-08-08 12:15 ` Jeff Garzik [this message]
2014-08-08 12:16 ` Wladimir
2014-08-08 12:34 ` Wladimir
2014-08-08 13:55 ` Mike Hearn
2014-08-08 12:04 ` Jeff Garzik
2014-08-08 12:13 ` Mike Hearn
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