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01:44 < GitHub62> [bitcoin] robegan21 opened pull request #7122: simple fix to mask command line arguments after they are copied (master...MaskCommandLineArgs) https://github.com/bitcoin/bitcoin/pull/7122
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02:27 < GitHub170> [bitcoin] gmaxwell opened pull request #7123: [WIP] Make trickle logic useful again, delay trickle when past upload limit. (master...actually_trickle) https://github.com/bitcoin/bitcoin/pull/7123
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03:05 < phantomcircuit> sipa, i guess i dont actually care that maxsigcachesize= isn't compatible since the chainstate isn't either
03:06 < sipa> chainstate isn't?
03:06 < sipa> between which versions?
03:13 < phantomcircuit> sipa, 0.12.0 -> 0.11.2
03:13 < phantomcircuit> because of obfuscation
03:14 < phantomcircuit> oh actually it doesn't need to be changed
03:14 < phantomcircuit> anybody who set it and goes to 0.12.0 will run out of memory
03:16 < sipa> eh, we should change the name :)
03:16 < sipa> grr, where did i put my glasses last noght?
03:22 < gmaxwell> lol 100000 mb memory usage. darn non-typesafty of commandlines.
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03:24 < sipa> foubd!
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04:15 < phantomcircuit> gmaxwell, any opposition to adding a new checkpoint (keeping in mind that it's just to skip script validation now)
04:23 < gmaxwell> Yes.
04:23 < gmaxwell> As in yes, I'm opposed to doing that.
04:24 < gmaxwell> The difference in validation time is basically negligible now; and to the extent that it's not we should address it by implementing the latching worth threshold shortcutting.
04:24 < phantomcircuit> gmaxwell, failed to parse the last part of that sentence
04:25 < gmaxwell> If the saved verification time isn't enough to justify implementing the real solution, then it's not enough to justify perpetuating the terrible screwup of checkpoints that causes material harm to the ecosystem in several ways.
04:26 < phantomcircuit> ah right
04:27 < gmaxwell> phantomcircuit: The signature shortcutting should just work based on a threshold difficulty; like skip verifying up to 2016 blocks from the tip on any chain whos total headers show work > X... but only on the initial sync (latching), don't skip in reorgs.
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04:28 < gmaxwell> So then we don't lose the optimization when we fail to constantly update some stupid constants, don't continue to give academics (for example) a reason to argue the consenus is actually hard coding blocks by us...
04:29 < gmaxwell> And the only exposure it creates is a one time install time vulnerablity to attackers powerful enough that they could totally break everything anyways.
04:32 < phantomcircuit> gmaxwell, my thinking on that was that the CScriptCheck objects could be queued on disk for processing later and then we could process them backwards
04:33 < phantomcircuit> which also has the nice benefit of making it trivial to do the io bound stuff in parallel with the script checks
04:33 < sipa> phantomcircuit: there's a much more elegant solution in just introduces an extra step in validation
04:34 < sipa> and doing script validation in the background
04:34 < sipa> but it's not trivial
04:34 < gmaxwell> well you cannot verify scripts once the utxo are removed; unless you're extracting and storing the pubkeys.
04:35 < sipa> they're stored in the undo files
04:36 < phantomcircuit> sipa, i never thought about using the undo files for that
04:36 < sipa> undo data may lack nLockTime though :s
04:37 < sipa> so you can't validate bip65/bip112 that way :(
04:53 < gmaxwell> sipa: does #7099 need rebase again?
04:53 < gmaxwell> (I just rebased it before your comment)
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05:07 < gmaxwell> sipa: should I go update 7100 to remove the mruset?
05:08 < sipa> gmaxwell: yes
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05:15 < GitHub38> [bitcoin] sipa pushed 2 new commits to master: https://github.com/bitcoin/bitcoin/compare/8284feb3c91f...8332457e95c9
05:15 < GitHub38> bitcoin/master b8c06ef Wladimir J. van der Laan: doc: Add non-style-related development guidelines...
05:15 < GitHub38> bitcoin/master 8332457 Pieter Wuille: Merge pull request #7003...
05:15 < GitHub104> [bitcoin] sipa closed pull request #7003: doc: Add non-style-related development guidelines (master...2015_11_development_guidelines) https://github.com/bitcoin/bitcoin/pull/7003
05:18 < GitHub0> [bitcoin] sipa pushed 2 new commits to master: https://github.com/bitcoin/bitcoin/compare/8332457e95c9...92aa7311d64c
05:18 < GitHub0> bitcoin/master e482a7f Peter Josling: Fix CCoins serialization documentation...
05:18 < GitHub0> bitcoin/master 92aa731 Pieter Wuille: Merge pull request #6942...
05:18 < GitHub105> [bitcoin] sipa closed pull request #6942: Fix CCoins serialization documentation (master...docfix) https://github.com/bitcoin/bitcoin/pull/6942
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06:43 < GitHub142> [bitcoin] jonasschnelli closed pull request #7067: [Wallet] improve detection of conflicted transactions (master...2015/11/mempool_wallet) https://github.com/bitcoin/bitcoin/pull/7067
06:57 < GitHub147> [bitcoin] sipa opened pull request #7125: Replace global trickle node with random delays (master...timetrickle) https://github.com/bitcoin/bitcoin/pull/7125
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07:42 < SomeT> hi, is there a tutorial on how to modify bitcoin from the source code? so many files I have no idea where to start
07:44 < sipa> what do you want to change?
07:45 < SomeT> I wanted to see if I could start building my own cryptocurrency in a sense
07:46 < sipa> i would suggest you to try understanding the code that is already there before deciding you need to change things
07:46 < sipa> perhaps you'll even find things to improve and start contributing to bitcoin
07:47 < SomeT> that was kinda my main goal really more understanding the code to see how it all works
07:47 < SomeT> but where would I even start in that respect? I can not find any sort of tutorials via google
07:47 < sipa> in that case, i suggest you to go over the issues, and see if there's something you feel is doable
07:47 < sipa> you can always ask specific questions here, especially if it's about improving the code
07:48 < sipa> where do you start? read the code... it will take a while, but it's much easier if you have a specific goal
07:48 < SomeT> ok many thanks
07:50 < SomeT> this looks useful?: http://chimera.labs.oreilly.com/books/1234000001802/index.html
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07:53 < phantomcircuit> SomeT, useless
07:53 < phantomcircuit> actually worse than useless since it'll confuse you
07:54 < SomeT> ok what would be a better book like that aimed more at a beginner?
07:54 < SomeT> this is what I am trying to get at, like an outline
07:54 < sipa> SomeT: https://bitcoin.org/en/developer-guide
07:55 < SomeT> ok many thanks
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13:10 < MarcoFalke> sipa, we are logging time stamps by default
13:10 < MarcoFalke> It's just the diff which looks weird
13:12 < MarcoFalke> missed your second comment ;)
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13:13 < sipa> MarcoFalke: just doing due diligence :)
13:13 < sipa> MarcoFalke: looks all good, going to merge
13:15 < MarcoFalke> sounds good, I don't think there is anything left to get into the PR
13:15 < GitHub17> [bitcoin] sipa pushed 5 new commits to master: https://github.com/bitcoin/bitcoin/compare/92aa7311d64c...8d26289c9a7c
13:15 < GitHub17> bitcoin/master b966aa8 Luke Dashjr: Constrain constant values to a single location in code
13:15 < GitHub17> bitcoin/master 3307bdb Luke Dashjr: Bugfix: Omit wallet-related options from -help when wallet is not supported
13:15 < GitHub17> bitcoin/master faf93f3 MarcoFalke: [trivial] Reuse translation and cleanup DEFAULT_* values...
13:15 < GitHub37> [bitcoin] sipa closed pull request #6961: luke-jr constants (master...luke-jr-const) https://github.com/bitcoin/bitcoin/pull/6961
13:16 < GitHub101> [bitcoin] sipa closed pull request #6349: Constrain constant values to a single location in code (master...opt_defaults) https://github.com/bitcoin/bitcoin/pull/6349
13:27 < GitHub109> [bitcoin] sipa pushed 3 new commits to master: https://github.com/bitcoin/bitcoin/compare/8d26289c9a7c...61457c29d735
13:27 < GitHub109> bitcoin/master ee60e56 Pieter Wuille: Add merkle.{h,cpp}, generic merkle root/branch algorithm
13:27 < GitHub109> bitcoin/master eece63f Pieter Wuille: Switch blocks to a constant-space Merkle root/branch algorithm....
13:28 < GitHub109> bitcoin/master 61457c2 Pieter Wuille: Merge pull request #6508...
13:28 < GitHub168> [bitcoin] sipa closed pull request #6508: Switch to a constant-space Merkle root/branch algorithm. (master...constmerkle) https://github.com/bitcoin/bitcoin/pull/6508
13:29 < Luke-Jr> MarcoFalke: what does https://github.com/bitcoin/bitcoin/pull/6349#issuecomment-160335992 mean?
13:30 < MarcoFalke> The last commit of this PR is not yet rebased
13:31 < Luke-Jr> oh, I figured you got all of them
13:31 < MarcoFalke> I only did 1 and 2 + 3 and 4
13:31 < GitHub79> [bitcoin] MarcoFalke opened pull request #7126: [trivial] Move blocksonly parameter interaction to InitParameterInteraction() (master...MarcoFalke-2015-initParam) https://github.com/bitcoin/bitcoin/pull/7126
13:31 < Luke-Jr> k
13:36 < MarcoFalke> Also I haven't looked at chainparams https://github.com/bitcoin/bitcoin/pull/6349/files#diff-dbba8d0e1257cc14ce18de8fd6c9a0b1 Not sure if still relevant
13:41 < Luke-Jr> MarcoFalke: eh, how did you do rpcport then?
13:41 < Luke-Jr> … you didn't :/
13:41 < MarcoFalke> Just left it how it was
13:41 < MarcoFalke> yes
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13:41 < Luke-Jr> anything else missing?
13:42 < MarcoFalke> no
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13:45 < gmaxwell> sipa: RE #7125 by 'No removal of the "1/4 blast to all" behaviour, as #7123 seems to offer a better replacement.'  do you mean the sticky electricted trickling nodes? And darn wrt sorting the INV, I hadn't considered that the sort needs to be topological.
13:46 < sipa> gmaxwell: i just mean "other pull requests exist that deal with this in a different way, let's not touch the code too much"
13:46 < GitHub26> [bitcoin] luke-jr opened pull request #7127: Bugfix: Default -uiplatform is not actually the platform this build was compiled on (master...bugfix_uiplatform) https://github.com/bitcoin/bitcoin/pull/7127
13:46 < sipa> without judging whether those others are a good idea, getting the non-controversial parts in first is priority
13:47 < sipa> :)
13:48 < gmaxwell> sipa: yea, I think that 7125 is easier to merge.
13:49 < gmaxwell> I'd been debating to do per-peer timers in mine; it has some negative privacy effects when an observer has multiple connections to you (since they get the min of all of them); but it lets you have longer intervals with less effect.
13:50 < gmaxwell> It also breaks up bandwidth usage more, which is probably good for usability.
13:54 < sipa> gmaxwell: i would not be confortable with just per-peer timers if there was no bypass mechanism (like the 1/4 blast to all, or specific nodes that get everything instantly, ...)
13:54 < sipa> as that would introduce inevitable delays on every hop
13:58 < gmaxwell> In the per-peer, the 'delay per hop' is minimum (/second from minimum) of all those uniform numbers; e.g. ~N/2 fold smaller.
14:00 < sipa> and the more independent paths (of the same length) there are between two nodes, the lower the delay would be
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15:53 < GitHub170> [bitcoin] luke-jr opened pull request #7128: Constrain rpcport default values to a single location in code (master...const_rpcport) https://github.com/bitcoin/bitcoin/pull/7128
16:06 < GitHub107> [bitcoin] gmaxwell closed pull request #7123: [WIP] Make trickle logic useful again, delay trickle when past upload limit. (master...actually_trickle) https://github.com/bitcoin/bitcoin/pull/7123
16:10 < GitHub27> [bitcoin] gmaxwell pushed 2 new commits to master: https://github.com/bitcoin/bitcoin/compare/61457c29d735...c894fbbb1dc0
16:10 < GitHub27> bitcoin/master a9f3d3d Pieter Wuille: Fix and improve relay from whitelisted peers...
16:10 < GitHub27> bitcoin/master c894fbb Gregory Maxwell: Merge pull request #7106...
16:10 < GitHub63> [bitcoin] gmaxwell closed pull request #7106: Fix and improve relay from whitelisted peers (master...realwhiterelay) https://github.com/bitcoin/bitcoin/pull/7106
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17:59 < GitHub12> [bitcoin] gmaxwell closed pull request #7119: Add option to opt into full-RBF when sending funds (master...2015-11-opt-into-full-rbf-option) https://github.com/bitcoin/bitcoin/pull/7119
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