[Bitcoin-development] bitcoind as a library

[Bitcoin-development] bitcoind as a library

[Mem Wallet]

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Two minor observations:

DecodeBase58Check is listed as inline, but isnt actually inlined in the
header.
This makes it both non-present in libbitcoin_common.a and unavailable
to other code that would use libbitcoin_common.a as a library. (bug?)

In general, the hierarchy of tools is poor/weak. for example base58.h could
be a fairly
independent low level math/string library, but it includes caddress, which
requires chainparams, and makes the whole dependency tree quite involved...


Is there an intention that the various internal libraries could/should
be strengthened and heirachicalized such that they would be suitable for
3rd party development of bitcoin related services and tools, or is that not
a goal, and some other project would have to fill such a role ?

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Re: [Bitcoin-development] bitcoind as a library

[Wladimir]

On Thu, Nov 27, 2014 at 5:27 PM, Mem Wallet <memwallet.info@gmail.com> wrote:

> Is there an intention that the various internal libraries could/should
> be strengthened and heirachicalized such that they would be suitable for
> 3rd party development of bitcoin related services and tools, or is that not
> a goal, and some other project would have to fill such a role ?

The plan is to provide the consensus functionality as a library, the
essential parts that make bitcoin bitcoin.
0.10 will have a basic transaction/script verifier available.
In the version after that, I expect this will be extended to further
utxo set management, but no API has been worked out for that yet.
There are also plans to add a library for transaction signing.

However there is no goal to expose *everything* as a library.
Certainly not wallet- or user interface related functionality.
Specialized utility libraries would fill this purpose better.
See for example https://github.com/bitcoin/libbase58 for base58 processing.

Wladimir

Re: [Bitcoin-development] bitcoind as a library

[odinn]

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A recent comment on this (I think)...

https://github.com/bitcoin/bitcoin/issues/4564#issuecomment-49558760

Reflecting on an approach from a different but related project, as a
result of an issue discussion in DW, stealth and coinjoin from that
project were broken out as distinct repositories - see:

https://github.com/darkwallet/stealth.js
and
https://github.com/darkwallet/coinjoin.js

installable using npm


I'm probably missing something here, but it seems to me like breaking
things out as distinct repositories might be a good approach.  The
question is what would be in a distinct repository or repositories?
Currently if someone is looking at core, everything is seen here:
https://github.com/bitcoin/bitcoin/

<slips away for holidays>




Wladimir:
> On Thu, Nov 27, 2014 at 5:27 PM, Mem Wallet
> <memwallet.info@gmail.com> wrote:
> 
>> Is there an intention that the various internal libraries
>> could/should be strengthened and heirachicalized such that they
>> would be suitable for 3rd party development of bitcoin related
>> services and tools, or is that not a goal, and some other project
>> would have to fill such a role ?
> 
> The plan is to provide the consensus functionality as a library,
> the essential parts that make bitcoin bitcoin. 0.10 will have a
> basic transaction/script verifier available. In the version after
> that, I expect this will be extended to further utxo set
> management, but no API has been worked out for that yet. There are
> also plans to add a library for transaction signing.
> 
> However there is no goal to expose *everything* as a library. 
> Certainly not wallet- or user interface related functionality. 
> Specialized utility libraries would fill this purpose better. See
> for example https://github.com/bitcoin/libbase58 for base58
> processing.
> 
> Wladimir
> 
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- -- 
http://abis.io ~
"a protocol concept to enable decentralization
and expansion of a giving economy, and a new social good"
https://keybase.io/odinn
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Re: [Bitcoin-development] bitcoind as a library

[Oliver Egginger]

On Thu, Nov 27, 2014 at 6:54 PM, Wladimir <laanwj@gmail.com> wrote:
> On Thu, Nov 27, 2014 at 5:27 PM, Mem Wallet <memwallet.info@gmail.com> wrote:
> 
>> Is there an intention that the various internal libraries could/should
>> be strengthened and heirachicalized such that they would be suitable for
>> 3rd party development of bitcoin related services and tools, or is that not
>> a goal, and some other project would have to fill such a role ?
> 
> The plan is to provide the consensus functionality as a library, the
> essential parts that make bitcoin bitcoin.
> 0.10 will have a basic transaction/script verifier available.
> In the version after that, I expect this will be extended to further
> utxo set management, but no API has been worked out for that yet.
> There are also plans to add a library for transaction signing.
> 
> However there is no goal to expose *everything* as a library.
> Certainly not wallet- or user interface related functionality.
> Specialized utility libraries would fill this purpose better.
> See for example https://github.com/bitcoin/libbase58 for base58 processing.


Sorry for the off-topic but while reading this I like to ask you for
picocoin, see:

https://github.com/jgarzik/picocoin

For a research project I'm looking for a C library to operate some block
chain analysis (parsing raw blocks and transactions). Has anyone of you
experience with picocoin for that? Are there any relevant limitations?

- oliver

Re: [Bitcoin-development] bitcoind as a library

[Btc Drak]

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On Fri, Nov 28, 2014 at 5:22 PM, Oliver Egginger <bitcoin@olivere.de> wrote:

> Sorry for the off-topic but while reading this I like to ask you for
> picocoin, see:
>
> https://github.com/jgarzik/picocoin
>
> For a research project I'm looking for a C library to operate some block
> chain analysis (parsing raw blocks and transactions).


This might be useful for you https://github.com/MatthewLM/cbitcoin

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Re: [Bitcoin-development] bitcoind as a library

[Jeff Garzik]

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Though I am highly biased :)  Compared to cbitcoin, picocoin's library
(libccoin) is valgrind-clean, can parse and index the blockchain, and
supports all core and P2P data structures.


On Fri, Nov 28, 2014 at 12:49 PM, Btc Drak <btcdrak@gmail.com> wrote:

> On Fri, Nov 28, 2014 at 5:22 PM, Oliver Egginger <bitcoin@olivere.de>
> wrote:
>
>> Sorry for the off-topic but while reading this I like to ask you for
>> picocoin, see:
>>
>> https://github.com/jgarzik/picocoin
>>
>> For a research project I'm looking for a C library to operate some block
>> chain analysis (parsing raw blocks and transactions).
>
>
> This might be useful for you https://github.com/MatthewLM/cbitcoin
>
>
> ------------------------------------------------------------------------------
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> _______________________________________________
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>
>


-- 
Jeff Garzik
Bitcoin core developer and open source evangelist
BitPay, Inc.      https://bitpay.com/

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