feature_fee_estimation has a lot of loops that hit the RPC many times in
succession in order to setup scenarios. Using batched requests for these
can reduce the test's runtime without effecting the test's behavior.
Generating blocks is slow, especially when --enable-debug. There is no
need to generate a new block for each transaction, so avoid doing that
to improve this test's runtime.
fa7d71accc test: Move rpc_fundrawtransaction.py to wallet_fundrawtransaction.py (MarcoFalke)
fa933d6985 test: Move feature_backwards_compatibility.py to wallet_backwards_compatibility.py (MarcoFalke)
Pull request description:
The tests only tests the wallet and it doesn't make sense to extend it for other stuff, so clarify that.
ACKs for top commit:
fanquake:
ACK fa7d71accc
pablomartin4btc:
re-ACK fa7d71accc
Tree-SHA512: 9dc131ed8ff119bd6d43d04ecc5c96d02f2d6fdc3d0805492774a414c0fbe6a984da7631154122a080c54ddd25fc5a5bdd52b282c918fce4932057ba72c2bf71
fabb24cbef test: Use last release in compatibility tests (MarcoFalke)
Pull request description:
In compatibility tests it makes sense to always use the last release without the new feature, as it is likely more in use than any even older previous release.
ACKs for top commit:
Sjors:
utACK fabb24c
Tree-SHA512: beb854f4d28ba313282e1e0303abb0e09377828b138bde5a3e209337210b6b4c24855ab90a68f8789387001e4ca33b15cc37dbc9b7809929f4e7d1b69833a527
affbf58a1e build: Move environment variables into `$(package)_config_env` (Hennadii Stepanov)
d44fcd3c97 build: Make $(package)_*_env available to all $(package)_*_cmds (Hennadii Stepanov)
Pull request description:
On master (1e7564eca8) the depends build system, which is based on pure GNU Make, works, but it lacks robustness, and in some corner cases it fails. For example, see bitcoin/bitcoin#22552.
Another [bug](https://github.com/bitcoin/bitcoin/issues/22719) in the depends build system has already become a problem at least two times in the past (https://github.com/bitcoin/bitcoin/pull/16883#issuecomment-683817472 and https://github.com/bitcoin/bitcoin/pull/24134). Each time the problem was solved with other means.
The initial [solution](https://github.com/bitcoin/bitcoin/pull/19882) had some discussion. Also it was discussed on the IRC meeting in #bitcoin-core-builds channel. This PR, actually, is a resurrection of it, as the bug silently struck pretty [recently](https://github.com/bitcoin/bitcoin/pull/24134).
The bug is well described in bitcoin/bitcoin#22719.
Here is another, a bit simpler description, which requires only basic shell (bash, dash etc) experience.
After creating targets by this code:1e7564eca8/depends/funcs.mk (L280) a "draft" line of recipe like `$($(1)_config_env) $(call $(1)_config_cmds, $(1))` becomes a shell command sequence `VAR1=foo VAR2=bar command1 && command2` which is supposed to be executed in a [new sub-shell](https://www.gnu.org/software/make/manual/html_node/Execution.html#Execution).
Please note that `VAR1=foo VAR2=bar` part is visible for the first `command1` only (for details see shell docs). Example:
```sh
$ VAR1="foo" VAR2="bar" echo "begin" && printenv VAR1 && printenv VAR2 && echo "end"
begin
$ echo $?
1
```
Using the `export` command is a trivial solution:
```sh
$ export VAR1="foo" VAR2="bar"; echo "begin" && printenv VAR1 && printenv VAR2 && echo "end"
begin
foo
bar
end
$ echo $?
0
```
As a [new sub-shell](https://www.gnu.org/software/make/manual/html_node/Execution.html#Execution) is invoked for each line of the recipe, there are no side effects of using `export`. It means this solution should not be considered invasive.
Fixesbitcoin/bitcoin#22719.
---
Also this PR removes no longer needed crutch from `qt.mk`.
ACKs for top commit:
fanquake:
ACK affbf58a1e
Tree-SHA512: 0ce2cf82870a7774bdf1592fac50857126ae47da902e349f1092d50109223be9d6a8efd5e92ec08c2ca775b17516482aabaf232378950ade36484a883acc177b
fa579f3063 refactor: Pass reference to last header, not pointer (MacroFake)
Pull request description:
It is never a nullptr, otherwise an assertion would fire in UpdatePeerStateForReceivedHeaders.
Passing a reference makes the code easier to read and less brittle.
ACKs for top commit:
john-moffett:
ACK fa579f3
aureleoules:
ACK fa579f3063
Tree-SHA512: 9725195663a31df57ae46bb7b11211cc4963a8f3d100f60332bfd4a3f3327a73ac978b3172e3007793cfc508dfc7c3a81aab57a275a6963a5ab662ce85743fd0
07dfbb5bb8 Make static nLastFlush and nLastWrite Chainstate members (Aurèle Oulès)
Pull request description:
Fixes#22189.
The `static std::multimap<uint256, FlatFilePos> mapBlocksUnknownParent; ` referenced in the issue was already fixed by #25571. I don't believe Chainstate references any other static variables.
ACKs for top commit:
jamesob:
ACK 07dfbb5bb8 ([`jamesob/ackr/26513.1.aureleoules.make_static_nlastflush_a`](https://github.com/jamesob/bitcoin/tree/ackr/26513.1.aureleoules.make_static_nlastflush_a))
theStack:
Concept and code-review ACK 07dfbb5bb8
Tree-SHA512: 0f26463c079bbc5e0e62707d4ca4c8c9bbb99edfa3391d48d4915d24e2a1190873ecd4f9f11da25b44527671cdc82c41fd8234d56a4592a246989448d34406b0
d7f61e7d59 rpc: reduce LOCK(cs_main) scope in gettxoutproof (Andrew Toth)
4d92b5aaba rpc: reduce LOCK(cs_main) scope in GetUndoChecked and getblockstats (Andrew Toth)
efd82aec8a rpc: reduce LOCK(cs_main) scope in blockToJSON (Andrew Toth)
f00808e932 rpc: reduce LOCK(cs_main) scope in GetBlockChecked and getblock (Andrew Toth)
7d253c943f zmq: remove LOCK(cs_main) from NotifyBlock (Andrew Toth)
c75e3d2772 rest: reduce LOCK(cs_main) scope in rest_block (Andrew Toth)
Pull request description:
Picking up from #21006.
After commit ccd8ef65f9 it is no longer required to hold `cs_main` when calling `ReadBlockFromDisk`. This can be verified in `master` at https://github.com/bitcoin/bitcoin/blob/master/src/node/blockstorage.cpp#L755. Same can be seen for `UndoReadFromDisk` https://github.com/bitcoin/bitcoin/blob/master/src/node/blockstorage.cpp#L485.
The first commit moves `ReadBlockFromDisk` outside the lock scope in `rest_block`, where we can see a huge performance improvement when fetching blocks with multiple threads.
My test setup, on an Intel i7 with 8 cores (16 threads):
1. Start a fully synced bitcoind, with this `bitcoin.conf`:
```
rest=1
rpcthreads=16
rpcworkqueue=64
rpcuser=user
rpcpassword=password
```
2. Run ApacheBench: 10000 requests, 16 parallel threads, fetching block nr. 750000 in binary:
```
ab -n 10000 -c 16 "http://127.0.0.1:8332/rest/block/0000000000000000000592a974b1b9f087cb77628bb4a097d5c2c11b3476a58e.bin"
```
Time per request (mean)
183 ms on master
30 ms this branch
So this can process 6.1 times as many requests, and saturates all the cores instead of keeping them partly idle waiting in the lock. With 8 threads the mean times were 90 ms on master and 19 ms on this branch, a speedup of 4.7x.
Big thanks to martinus for finding this and the original PR.
The second commit is from a suggestion on the original PR by jonatack to remove the unnecessary `LOCK(cs_main)` in the zmq notifier's `NotifyBlock`.
I also found that this approach could be applied to rpcs `getblock` (including `verbosity=3`), `getblockstats`, and `gettxoutproof` with similar very good results. The above benchmarks steps need to be modified slightly for RPC. Run the following ApacheBench command with different request data in a file named `data.json`:
```
ab -p data.json -n 10000 -c 16 -A user:password "http://127.0.0.1:8332/"
```
For `getblock`, use the following in `data.json`:
```
{"jsonrpc": "1.0", "id": "curltest", "method": "getblock", "params": ["0000000000000000000592a974b1b9f087cb77628bb4a097d5c2c11b3476a58e"]}
```
master - 184 ms mean request time
branch - 28 ms mean request time
For `getblock` with verbosity level 3, use the following in `data.json`:
```
{"jsonrpc": "1.0", "id": "curltest", "method": "getblock", "params": ["0000000000000000000592a974b1b9f087cb77628bb4a097d5c2c11b3476a58e", 3]}
```
This verbosity level fetches an undo file from disk, so it benefits from this approach as well. However, a lot of time is spent serializing to JSON so the performance gain is not as severe.
master - 818 ms mean request time
branch - 505 ms mean request time
For `getblockstats`, use the following in `data.json`:
```
{"jsonrpc": "1.0", "id": "curltest", "method": "getblockstats", "params": ["0000000000000000000592a974b1b9f087cb77628bb4a097d5c2c11b3476a58e", ["minfeerate","avgfeerate"]]}
```
This request used a lock on reading both a block and undo file, so the results are very good.
master - 244 ms mean request time
branch - 28 ms mean request time
ACKs for top commit:
MarcoFalke:
re-ACK d7f61e7d59💫
hebasto:
ACK d7f61e7d59, I have reviewed the code and it looks OK. Did not make benchmarking though.
Tree-SHA512: 305ac945b4571c5f47646d4f0e78180d7a3d40b2f70ee43e4b3e00c96a465f6d0b9c750b8e85c89ed833e557e2cdb5896743f07ef90e4e53d4ad85452b545886
4e362c2b72 doc: add release note for 25934 (brunoerg)
fe488b4c4b test: add coverage for `label` in `listsinceblock` (brunoerg)
722e9a418d wallet, rpc: add `label` to `listsinceblock` (brunoerg)
852891ff98 refactor, wallet: use optional for `label` in `ListTransactions` (brunoerg)
Pull request description:
This PR adds `label` parameter to `listsinceblock` to be able to fetch all incoming transactions having the specified label since a specific block.
It's possible to use it in `listtransactions`, however, it's only possible to set the number of transactions to return, not a specific block to fetch from. `getreceivedbylabel` only returns the total amount received, not the txs info. `listreceivedbylabel` doesn't list all the informations about the transactions and it's not possible to fetch since a block.
ACKs for top commit:
achow101:
ACK 4e362c2b72
w0xlt:
ACK 4e362c2b72
aureleoules:
ACK 4e362c2b72
Tree-SHA512: fbde5db8cebf7a27804154fa61997b5155ad512e978cebb78c17acab9efcb624ea5f39d649899d12e5e675f80d4d0064cae8132b864de0d93a8d1e6fbcb9a737
ccba4fe7e3 doc: Add completion subdir to contrib/README.md (willcl-ark)
7075848f96 script: Add fish completions (willcl-ark)
a27a445b71 refactor: Sub-folder bash completions (willcl-ark)
Pull request description:
The completions are dynamically generated from the respective binary
help pages.
Completions should be sourced into the shell or added to
`$XDG_CONFIG/fish/completions`. See [where to put completions](https://fishshell.com/docs/current/completions.html#where-to-put-completions) for more information.
As the completions are auto-generated they should only require as much maintenance as the bash equivalents, which is to say very little!
ACKs for top commit:
achow101:
ACK ccba4fe7e3
josibake:
ACK ccba4fe7e3
Tree-SHA512: fe6ed899ea1fe90f82970bde7739db11dd0c845ccd70b65f28ad5212f75b57d9105a3a7f70ccdff552d5b21fa3fe9c697d128fb10740bae31fe1854e716b4b8b
6fb102c9f3 test: Changed small_txpuzzle_randfee to return the virtual size instead of the transaction hex for feerate calculation. (Randall Naar)
Pull request description:
The fee rates used in feature_fee_estimation.py are calculated using the raw transaction size instead of the virtual transaction size (which is used in 'CBlockPolicyEstimator::processBlockTx' and 'CBlockPolicyEstimator::processBlock'). This leads to inconsistencies as the fee rates used in check_raw_estimates are incorrect and can cause assertions to fail.
refs #25179
ACKs for top commit:
MarcoFalke:
ACK 6fb102c9f3
Tree-SHA512: b2bca85fffa605aeb17574f050736d4556506d782dd7fd969e165e48e108fd95ef4c4e2abbae83cce05ca777a00f4459cabfa0932694fa8bb93ddfba09d84357
b19c4124b3 refactor: Rename ambiguous interfaces::MakeHandler functions (Ryan Ofsky)
dd6e8bd71c build: remove BOOST_CPPFLAGS from libbitcoin_util (fanquake)
82e272a109 refactor: Move src/interfaces/*.cpp files to libbitcoin_common.a (Ryan Ofsky)
Pull request description:
These belong in `libbitcoin_common.a`, not `libbitcoin_util.a`, because they aren't general-purpose utilities, they just contain some common glue code that is used by both the node and the wallet. Another reason not to include these in `libbitcoin_util.a` is to prevent them from being used by the kernel library.
Also rename ambiguous `MakeHandler` functions to `MakeCleanupHandler` and `MakeSignalHandler`. Cleanup function handler was introduced after boost signals handler, so original naming didn't make much sense.
This just contains a move-only commit, and a rename commit. There are no actual code or behavior changes.
This PR is an alternative to #26293, and solves the same issue of removing a boost dependency from the _util_ library. The advantages of this PR compared to #26293 are that it keeps the source directory structure more flat, and it avoids having to change #includes all over the codebase.
ACKs for top commit:
hebasto:
ACK b19c4124b3
Tree-SHA512: b3a1d33eedceda7ad852c6d6f35700159d156d96071e59acae2bc325467fef81476f860a8855ea39cf3ea706a1df2a341f34fb2dcb032c31a3b0e9cf14103b6a
fa825bd227 util: Include full version id in bug reports (MarcoFalke)
Pull request description:
This will show the unique id of the full source code when the bug occurred, which can help debugging
ACKs for top commit:
1440000bytes:
utACK fa825bd227
theStack:
ACK fa825bd227
john-moffett:
ACK fa825bd227
Tree-SHA512: a7a775718f5f9796b5cffafbb3ace8adb5c163414ec584a57143157fc9dfb86f799e3b9c8365fcb831ee1e9eafc59d699d1653d772c68392de421b3de74dcd61
5d332da2cf doc: Drop no longer relevant comment (Hennadii Stepanov)
Pull request description:
The comment was introduced in 4cf3411056, and since 7e4bd19785 it has been no longer relevant.
ACKs for top commit:
jarolrod:
ACK 5d332da2cf
Tree-SHA512: 6d32561336993b1ff7d7c524d090ac52aefb40078ed706ca4c6d5026cc3f63244c49c0e00e45ff192ba0e9f1527faf63249aa18bc8aa677b9e053d387e0f4027
896fca16a3 doc: move release notes to 24.0.1 and add notice (fanquake)
Pull request description:
This mirrors what was done with 0.19.0.1.
ACKs for top commit:
instagibbs:
ACK 896fca16a3
gruve-p:
ACK 896fca16a3
w0xlt:
ACK 896fca16a3
Tree-SHA512: 590462555422c0f96895152d1a2f9f9cf0ebf2c61dc342094d747f4d48b878e5d91840b9c2ac6825bb7214239f035789f1765a907fb614017205377ed89631fd
38941a703e refactor: Move `txmempool_entry.h` --> `kernel/mempool_entry.h` (Hennadii Stepanov)
Pull request description:
This PR addresses the https://github.com/bitcoin/bitcoin/pull/17786#discussion_r1027818360:
> why not move it to the right place, that is to `kernel/txmempool_entry.h`?
ACKs for top commit:
MarcoFalke:
review ACK 38941a703e📊
Tree-SHA512: 0145974b63b67ca1d9d89af2dd9d4438beca480c16a563f330da05fec49b8394d7ba20ed83cf7d50b2e19454e006978ebed42b0e07887b98d00210f3201ce9ba
203886c443 Fixup clang-tidy named argument comments (fanquake)
Pull request description:
Fix comments so they are checked/consistent.
Fix incorrect comments.
ACKs for top commit:
hebasto:
ACK 203886c443, I have reviewed the code and it looks OK, I agree it can be merged.
Tree-SHA512: e1257840f91fe39842e2b19299c1633604697b8584fe44b1977ada33cdde5433c877ed0b669fa334e20b04971dc89cd47d58b2783b6f7004521f01d05a1245da
3eb041f014 wallet: Change coin selection fee assert to error (Andrew Chow)
c6e7f224c1 util: Add StrFormatInternalBug and STR_INTERNAL_BUG (MarcoFalke)
Pull request description:
Returning an error instead of asserting for the low fee check will be better as it does not crash the node and instructs users to report the bug.
ACKs for top commit:
S3RK:
ACK 3eb041f014
aureleoules:
ACK 3eb041f014
furszy:
ACK 3eb041f0
Tree-SHA512: 118c13d7cdfce492080edd4cb12e6d960695377b978c7573f9c58b6d918664afd0e8e591eed0605d08ac756fa8eceed456349de5f3a025174069abf369bb5a5f
d885bb2f6e test: Test exclusion of OP_RETURN from getblockstats (Fabian Jahr)
ba9d288b24 test: Fix getblockstats test data generator (Fabian Jahr)
2ca5a496c2 rpc: Improve getblockstats (Fabian Jahr)
cb94db119f validation, index: Add unspendable coinbase helper functions (Fabian Jahr)
Pull request description:
Fixes#19885
The genesis block does not have undo data saved to disk so the RPC errored because of that.
ACKs for top commit:
achow101:
ACK d885bb2f6e
aureleoules:
ACK d885bb2f6e
stickies-v:
ACK d885bb2f6
Tree-SHA512: f37bda736ed605b7a41a81eeb4bfbb5d2b8518f847819e5d6a090548a61caf1455623e15165d72589ab3f4478252b00e7b624f9313ad6708cac06dd5edb62e9a
3198e4239e test: check that loading descriptor wallet with legacy entries throws error (Sebastian Falbesoner)
349ed2a0ee wallet: throw error if legacy entries are present on loading descriptor wallets (Sebastian Falbesoner)
Pull request description:
Loading a descriptor wallet currently leads to a segfault if a legacy key type entry is present that can be deserialized successfully and needs SPKman-interaction. To reproduce with a "cscript" entry (see second commit for details):
```
$ ./src/bitcoin-cli createwallet crashme
$ ./src/bitcoin-cli unloadwallet crashme
$ sqlite3 ~/.bitcoin/wallets/crashme/wallet.dat
SQLite version 3.38.2 2022-03-26 13:51:10
Enter ".help" for usage hints.
sqlite> INSERT INTO main VALUES(x'07637363726970740000000000000000000000000000000000000000', x'00');
$ ./src/bitcoin-cli loadwallet crashme
--- bitcoind output: ---
2022-11-06T13:51:01Z Using SQLite Version 3.38.2
2022-11-06T13:51:01Z Using wallet /home/honey/.bitcoin/wallets/crashme
2022-11-06T13:51:01Z init message: Loading wallet…
2022-11-06T13:51:01Z [crashme] Wallet file version = 10500, last client version = 249900
Segmentation fault (core dumped)
```
Background: In the wallet key-value-loading routine, most legacy type entries require a `LegacyScriptPubKeyMan` instance after successful deserialization. On a descriptor wallet, creating that (via method `GetOrCreateLegacyScriptPubKeyMan`) fails and then leads to a null-pointer dereference crash. E.g. for CSCRIPT: 50422b770a/src/wallet/walletdb.cpp (L589-L594)
~~This PR fixes this by simply ignoring legacy entries if the wallet flags indicate that we have a descriptor wallet. The second commits adds a regression test to the descriptor wallet's functional test (fortunately Python includes sqlite3 support in the standard library).~~
~~Probably it would be even better to throw a warning to the user if unexpected legacy entries are found in descriptor wallets, but I think as a first mitigation everything is obvisouly better than crashing. As far as I'm aware, descriptor wallets created/migrated by Bitcoin Core should never end up in a state containing legacy type entries though.~~
This PR fixes this by throwing an error if legacy entries are found in descriptor wallets on loading.
ACKs for top commit:
achow101:
ACK 3198e4239e
aureleoules:
ACK 3198e4239e
Tree-SHA512: ee43da3f61248e0fde55d9a705869202cb83df678ebf4816f0e77263f0beac0d7bae9490465d1753159efb093ee37182931d76b2e2b6e8c6f8761285700ace1c
fa43f60a0c test: Run mempool_compatibility.py with MiniWallet (MarcoFalke)
Pull request description:
By using the already existing miniwallet, the test can be run even when no wallet is compiled.
ACKs for top commit:
glozow:
ACK fa43f60a0c
achow101:
ACK fa43f60a0c
Tree-SHA512: 6877b3f2f364663f04c28ab9f3d69780de6d1b77cc862379bba8c8242bbcfb0d26eb84c56cf721141407c393f1f3b49f667ae4fb32b3566108d71250e8b5d7bc
7362f8e5e2 refactor: make CoinsResult total amounts members private (furszy)
3282fad599 wallet: add assert to SelectionResult::Merge for safety (S3RK)
c4e3b7d6a1 wallet: SelectCoins, return early if wallet's UTXOs cannot cover the target (furszy)
cac2725fd0 test: bugfix, coinselector_test, use 'CoinsResult::Erase/Add' instead of direct member access (furszy)
cf79384697 test: Coin Selection, duplicated preset inputs selection (furszy)
341ba7ffd8 test: wallet, coverage for CoinsResult::Erase function (furszy)
f930aefff9 wallet: bugfix, 'CoinsResult::Erase' is erasing only one output of the set (furszy)
Pull request description:
This comes with #26559.
Solving few bugs inside the wallet's transaction creation
process and adding test coverage for them.
Plus, making use of the `CoinsResult::total_amount` cached value
inside the Coin Selection process to return early if we don't have
enough funds to cover the target amount.
### Bugs
1) The `CoinsResult::Erase` method removes only one
output from the available coins vector (there is a [loop break](c1061be14a/src/wallet/spend.cpp (L112))
that should have never been there) and not all the preset inputs.
Which on master is not a problem, because since [#25685](https://github.com/bitcoin/bitcoin/pull/25685)
we are no longer using the method. But, it's a bug on v24
(check [#26559](https://github.com/bitcoin/bitcoin/pull/26559)).
This method it's being fixed and not removed because I'm later using it to solve
another bug inside this PR.
2) As we update the total cached amount of the `CoinsResult` object inside
`AvailableCoins` and we don't use such function inside the coin selection
tests (we manually load up the `CoinsResult` object), there is a discrepancy
between the outputs that we add/erase and the total amount cached value.
### Improvements
* This makes use of the `CoinsResult` total amount field to early return
with an "Insufficient funds" error inside Coin Selection if the tx target
amount is greater than the sum of all the wallet available coins plus the
preset inputs amounts (we don't need to perform the entire coin selection
process if we already know that there aren't enough funds inside our wallet).
### Test Coverage
1) Adds test coverage for the duplicated preset input selection bug that we have in v24.
Where the wallet invalidly selects the preset inputs twice during the Coin Selection
process. Which ends up with a "good" Coin Selection result that does not cover the
total tx target amount. Which, alone, crashes the wallet due an insane fee.
But.. to make it worst, adding the subtract fee from output functionality
to this mix ends up with the wallet by-passing the "insane" fee assertion,
decreasing the output amount to fulfill the insane fee, and.. sadly,
broadcasting the tx to the network.
2) Adds test coverage for the `CoinsResult::Erase` method.
------------------------------------
TO DO:
* [ ] Update [#26559 ](https://github.com/bitcoin/bitcoin/pull/26559) description.
ACKs for top commit:
achow101:
ACK 7362f8e5e2
glozow:
ACK 7362f8e5e2, I assume there will be a followup PR to add coin selection sanity checks and we can discuss the best way to do that there.
josibake:
ACK [7362f8e](7362f8e5e2)
Tree-SHA512: 37a6828ea10d8d36c8d5873ceede7c8bef72ae4c34bef21721fa9dad83ad6dba93711c3170a26ab6e05bdbc267bb17433da08ccb83b82956d05fb16090328cba
0b78110f73 test: Move tx creation to create_self_transfer_multi (kouloumos)
Pull request description:
Two birds with one stone: replacement of https://github.com/bitcoin/bitcoin/pull/26278 with simplification of the MiniWallet's transaction creation logic.
Currently the MiniWallet creates simple txns (1 input, 1 output) with `create_self_transfer`. https://github.com/bitcoin/bitcoin/pull/24637 introduced `create_self_transfer_multi` **which uses** `create_self_transfer` to create a "transaction template" which then adjusts (copy and mutate inputs and outputs) in order to create more complex multi-input multi-output transactions.
This can more easily lead to issues such as https://github.com/bitcoin/bitcoin/pull/26278 and is more of a maintenance burden.
This PR simplifies the logic by going the other way around. Now `create_self_transfer` **uses** `create_self_transfer_multi`.
The transaction creation logic has been moved to `create_self_transfer_multi` which is being called by `create_self_transfer` to construct the simple case of 1 input 1 output transaction.
ACKs for top commit:
MarcoFalke:
ACK 0b78110f73👒
Tree-SHA512: 147e577ed5444bee57865bd375b37c9b49d6539e9875c30c2667e70fcba27fe80bcb4552a4e6efb42760d34b40d5dad826883b778eaeefe29425ec081787b4bd
f39d9269eb rpc: warn that nodes ignore requests for old stale blocks (Sjors Provoost)
Pull request description:
Adds warning to RPC help that `getblockfrompeer` is of little use for stale blocks that are more than a month old.
This is an anti-fingerprinting measure. See `BlockRequestAllowed` in `net_processing`.
It's been in Bitcoin Core since 2014, introduced in #2910 and later improved to not rely on checkpoints.
Older and alternative clients might still serve these blocks, so not throwing an error.
Allowing whitelisted nodes to fetch these blocks anyway might be nice.
ACKs for top commit:
fjahr:
Code review ACK f39d9269eb
Tree-SHA512: db88f9f7521289640c5e629c840dda1c2c3ab70d458e9e7136c60fbaeb02acfb36dc093502d83d4c098c331e22aab81bf8f4c4961d805e3bde0f8f3cfe68d968
874c861885 doc: Add I2P bandwidth guidance to i2p.md (willcl-ark)
Pull request description:
Add some general guidance on lowering bandwidth usage when using I2P routers.
ACKs for top commit:
jonatack:
ACK 874c861885
hernanmarino:
ACK 874c861885
pablomartin4btc:
ACK 874c861885.
Tree-SHA512: 3990375b23c01a2ad8e15a51e1b1a0275df8747ecd789ddf1888fbc88c20cde5a3813615982669af5e8d021dc995f6c7b1f080167b33f48574d6f50fc4851498
