68bfc0bce3 doc: correct GetDifficulty doc after #13288 (fanquake)
Pull request description:
`chain` is no longer passed to GetDifficulty, and we just return `1.0` if no `blockindex`.
Tree-SHA512: 701375d732f343200c4abfaf9039d5c12b10abff97b022e84564f81b26b5ba552f1eb0c0d0fd5370b29b53319eafcf39773a36e1c2dd04ee77e61c18c7b183fa
Call sync.h primitives "locks" and "mutexes" instead of "blocks" and "waitable
critical sections" to match current coding conventions and c++11 standard
names.
This PR does not rename the "CCriticalSection" class (though this could be done
as a followup) because it is used everywhere and would swamp the other changes
in this PR. Plain mutexes should mostly be preferred instead of recursive
mutexes in new code anyway.
-BEGIN VERIFY SCRIPT-
set -x
set -e
ren() { git grep -l $1 | xargs sed -i s/$1/$2/; }
ren CCriticalBlock UniqueLock
ren CWaitableCriticalSection Mutex
ren CConditionVariable std::condition_variable
ren cs_GenesisWait g_genesis_wait_mutex
ren condvar_GenesisWait g_genesis_wait_cv
perl -0777 -pi -e 's/.*typedef.*condition_variable.*\n\n?//g' src/sync.h
-END VERIFY SCRIPT-
9c4dc597dd Use LOCK macros for non-recursive locks (Russell Yanofsky)
1382913e61 Make LOCK, LOCK2, TRY_LOCK work with CWaitableCriticalSection (Russell Yanofsky)
ba1f095aad MOVEONLY Move AnnotatedMixin declaration (Russell Yanofsky)
41b88e9337 Add unit test for DEBUG_LOCKORDER code (Russell Yanofsky)
Pull request description:
Make LOCK macros work with non-recursive mutexes, and use wherever possible for better deadlock detection.
Also add unit test for DEBUG_LOCKORDER code.
Tree-SHA512: 64ef209307f28ecd0813a283f15c6406138c6ffe7f6cbbd084161044db60e2c099a7d0d2edcd1c5e7770a115e9b931b486e86c9a777bdc96d2e8a9f4dc192942
ca1a093127 Add regression test: Don't assert(...) with side effects (practicalswift)
4c3c9c3869 Don't assert(...) with side effects (practicalswift)
Pull request description:
Don't `assert(...)` with side effects.
From the developer notes:
> **Assertions should not have side-effects**
>
> Rationale: Even though the source code is set to refuse to compile with assertions disabled, having side-effects in assertions is unexpected and makes the code harder to understand
These assertions were introduced quite recently (in #14069 which was merged two days ago) and since this is a recurring thing (see #13534 – "Don't assert(foo()) where foo() has side effects" from May) I added a simple regression test for the most obvious common side effect.
Tree-SHA512: be65db9d8d5d0f5752152ba73fe3fbb0531880f156d3cd7dfdf1752709979b63214e46ae64b1adbe1e09fa121278f4087f4ae49bff16cf8f5aec16ea6bde3650
75ea00f391 Remove unused fsbridge::freopen (practicalswift)
cceedbc4bf Don't close old debug log file handle prematurely when trying to re-open (on SIGHUP) (practicalswift)
Pull request description:
Don't close old debug log file handle prematurely when trying to re-open (on `SIGHUP`).
Context: https://github.com/bitcoin/bitcoin/pull/13148#issuecomment-386288606
Thanks @ajtowns!
Tree-SHA512: c436b4286f00fc428b60269b6d6321f435c72c7ccec3c15b2194aac71196529b30f32c2384b418ffe3ed67ba7ee8ec51f4c9c5748e65945697c0437eafcdacd1
Currently we log a message indicating that a bitcoin.conf file is being used
even if one does not exists. This commit changes the logic to only display
this message if a config file exists and logs a separate message
if no config file exists. Additionally, a warning is now logged if the file
path passed in the -conf flag does not exist.
This commit does the following changes:
- [wallet] Remove 'account' argument from GetLegacyBalance()
- GetLegacyBalance() is never called with an account argument.
Remove the argument and helper functions.
- [wallet] Remove CWallet::ListAccountCreditDebit()
- Function no longer used.
- [wallet] Remove AccountMove()
- Function no longer used.
- [wallet] Remove AddAccountingEntry()
- Function no longer used.
- [wallet] Remove GetAccountCreditDebit()
- Function no longer used.
- [wallet] Don't rewrite accounting entries when reordering wallet transactions.
- Accounting entries are deprecated. Don't rewrite them to the wallet
database when re-ordering transactions.
- [wallet] Remove WriteAccountingEntry()
- Function no longer used.
- [wallet] Don't read acentry key-values from wallet on load.
- [wallet] Remove ListAccountCreditDebit()
- Function no longer used.
- [wallet] Remove CAccountingEntry class
- No longer used
- [wallet] Remove GetLabelDestination
- Function no longer used.
- [wallet] Delete unused account functions
- ReadAccount
- WriteAccount
- EraseAccount
- DeleteLabel
- [wallet] Remove fromAccount argument from CommitTransaction()
- [wallet] Remove strFromAccount.
- No longer used.
- [wallet] Remove strSentAccount from GetAmounts().
- No longer used.
- [wallet] Update zapwallettxes comment to remove accounts.
- [wallet] Remove CAccount
- No longer used
- [docs] fix typo in release notes for PR 14023
Report errors while parsing the configuration file, instead of silently
ignoring them.
$ src/bitcoind -regtest
Error reading configuration file: parse error on line 22: nodebuglogfile, if you intended to specify a negated option, use nodebuglogfile=1 instead
$ src/bitcoind -regtest
Error reading configuration file: parse error on line 22: sdafsdfafs
$ src/bitcoind -regtest
Error reading configuration file: parse error on line 24: -nodebuglogfile=1, options in the configuration file must be specified without leading -
0e534d4dca Fix incorrect Doxygen comments (practicalswift)
Pull request description:
Fix broken Doxygen comments.
This commit was taken from #13914 which now only covers `-Wdocumentation`.
Tree-SHA512: dddbca16bb792b8193e5f417151b5eace9acc942a321f1bc095b906e98889e3bd93509fe112ab6a24ee1f6a3a918db905bda7acefd53774fe3e6ebe669fb51ac
fa309dc305 validation: Log FormatStateMessage on ConnectBlock error in ConnectTip (MarcoFalke)
Pull request description:
This change additionally logs the validation state on error, which is not logged at all on current master.
Before:
```
ERROR: ConnectTip(): ConnectBlock ffffff.... failed
```
After:
```
ERROR: ConnectTip: ConnectBlock ffffff.... failed, bad-cb-amount (code 16)
```
Tree-SHA512: e69ee0266772b3f77c0193c4a959c2444bf1a51259bd29d790cf665582b037997e520c8567f70b36362c071dcfe1a8ebd7c0f2286cf1b842df5731960e7e1ba0
fa587773e5 scripted-diff: Remove unused first argument to addUnchecked (MarcoFalke)
fe5c49766c tx pool: Use the entry's hash instead of the one passed to addUnchecked (MarcoFalke)
ddd395f968 Mark CTxMemPoolEntry members that should not be modified const (MarcoFalke)
Pull request description:
Several years ago the transaction hash was not cached. For optimization the hash was instead passed into `addUnchecked` to avoid re-calculating it. See f77654a0e9
Passing in the hash is now redundant and the argument can safely be removed.
Tree-SHA512: 0206b65c7a014295f67574120e8c5397bf1b1bd70c918ae1360ab093676f7f89a6f084fd2c7000a141baebfe63fe6f515559e38c4ac71810ba64f949f9c0467f
b193d5a443 Removes the Boost case_conv.hpp dependency. (251)
7a208d9fad Implements custom tolower and toupper functions. (251)
e2ba043b8d Implements ParseNetwork unit test. (251)
Pull request description:
This pull request removes the `boost/algorithm/string/case_conv.hpp` dependency from the project.
`boost/algorithm/string/case_conv.hpp` is included for the `boost::to_lower` and `boost::to_upper` template functions.
We can replace the calls to these functions with straightforward alternative implementations that use the C++ Standard Library, because the functions are called with `std::string` objects that use standard 7-bit ASCII characters as argument.
The refactored implementation should work without the explicit `static_cast<unsigned char>` cast and `unsigned char` lambda return type. Both have been added defensively and to be explicit. Especially in case of the former, behaviour is undefined (potentially result in a crash) if the `std::toupper` argument is not an `unsigned char`.
A potential alternative, maybe even preferred, implementation to address the `boost::to_lower` function call in `ParseNetwork(std::string)` could have been:
```c++
if (net == "ipv4" || net == "IPv4") return NET_IPV4;
if (net == "ipv6" || net == "IPv6") return NET_IPV6;
```
This alternative implementation would however change the external behaviour of `ParseNetwork(std::string)`.
This pull requests includes a unit test to validate the implementation of `ParseNetwork(std::string)` prior and after the removal of the `case_conv.hpp` dependency.
`boost/algorithm/string/case_conv.hpp` has been removed from the `EXPECTED_BOOST_INCLUDES` in `test/lint/lint-includes.sh` because it is no longer required.
Tree-SHA512: d803ae709f2368a3efb223097384a722436955bce0c44a1a5cffd0abb3164be0cce85ba0e9ebd9408166df3f1a95ea0c0d29e3a2534af2fae206c0419d67fde9
1661a472b8 add unicode compatible file_lock for Windows (Chun Kuan Lee)
Pull request description:
boost::interprocess::file_lock cannot open the files that contain characters which cannot be parsed by the user's code page on Windows.
This PR is seperated from #13426 for easier review.
Tree-SHA512: e240479cda65958bf6e1319840b83928b2b50da81d99f4f002fb3b62621370bcd4bcfacd2b8c0678c443a650d6ba53d9d12618b591e5bfd67ac14388a18fd822
1cc58978b7 tests: Fix accidental trunction from int to bool (practicalswift)
Pull request description:
Fix accidental trunction from `int` to `bool`.
Context: https://github.com/bitcoin/bitcoin/pull/14086#issuecomment-416610313
Tree-SHA512: 72d209f892e580afa9c295174c206ea5ba764ff9e03613cd9bc57fd0d7118e895ee44d96db90930a29c0b4de7f51dc00101a1b32ba6b46576d34e089ff5482ba
This commit removes the `boost/algorithm/string/case_conv.hpp` dependency from the project. It replaces the `boost::to_lower` and `boost::to_upper` functions with custom functions that are locale independent and ASCII deterministic.
This commit implements custom equivalents for the C and C++ `tolower` and `toupper` Standard Library functions.
In addition it implements a utility function to capitalize the first letter of a string.
917353c8b0 Make SignPSBTInput operate on a private SignatureData object (Pieter Wuille)
cad5dd2368 Pass HD path data through SignatureData (Pieter Wuille)
03a99586a3 Implement key origin lookup in CWallet (Pieter Wuille)
3b01efa0d1 [MOVEONLY] Move ParseHDKeypath to utilstrencodings (Pieter Wuille)
81e1dd5ce1 Generalize PublicOnlySigningProvider into HidingSigningProvider (Pieter Wuille)
84f1f1bfdf Make SigningProvider expose key origin information (Pieter Wuille)
611ab307fb Introduce KeyOriginInfo for fingerprint + path (Pieter Wuille)
Pull request description:
This PR adds "key origin" (master fingeprint + key path) information to what is exposed from `SigningProvider`s, allowing this information to be used by the generic PSBT code instead of having the RPC pull it directly from the wallet.
This is also a preparation to having PSBT interact with output descriptors, which can then directly expose key origin information for the scripts they generate.
Tree-SHA512: c718382ba8ba2d6fc9a32c062bd4cff08b6f39b133838aa03115c39aeca0f654c7cc3ec72d87005bf8306e550824cd8eb9d60f0bd41784a3e22e17b2afcfe833
1ac3c983bf Mark single-argument constructors "explicit" (practicalswift)
Pull request description:
Mark single-argument constructors `explicit`.
Rationale:
* Avoid unexpected implicit promotions.
From the developer notes:
> **By default, declare single-argument constructors explicit.**
> Rationale: This is a precaution to avoid unintended conversions that might arise when single-argument constructors are used as implicit conversion functions.
Tree-SHA512: 7901ed5be808c9d0ecb5ca501e1bc0395987fe1b7941b8548cebac2ff08a14f7dab61fab374a69b9ba29a9295a04245c814325c7f95b97ae558af0780f111dfa
boost::interprocess::file_lock cannot open the files that contain characters which cannot be parsed by the user's code page on Windows.
This commit add a new class to handle those specific file for Windows.
update copyright headers
attempt to fix linting errors
Fixing issue with make check classifying generator files as actual unit tests
Wrapping gen files in ENABLE_PROPERTY_TESTS macro
Make macro better
5778bf95d9 Report minfeefilter value in getpeerinfo rpc (Anthony Towns)
Pull request description:
Lowering the minimum relay fee is only useful when many nodes in the p2p network also lower the fee, so to make it easier to understand progress on that front, this includes the value of the minfeefilter in getpeerinfo, so you at least have visibility to what fees your neighbours are currently accepting.
Tree-SHA512: 059f01bf2a32c98fce1648a13b7898701203b354d0209ee34e6683994b720eb594cf24968e66b699caae5e17e53d351e73281f042dd094decde14d3a318e9fb3
Lowering the minimum relay fee is only useful when many nodes in the
p2p network also lower the fee, so to make it easier to understand
progress on that front, this includes the value of the minfeefilter in
getpeerinfo, so you at least have visibility to what fees your neighbours
are currently accepting.
384273260a test: Add testing of value_ret for SelectCoinsBnB (Ben Woosley)
Pull request description:
Fix that the early bailout optimization tests did not test the intended
selection because their utxo pool was polluted by the make_hard_case test
preceding. Note the code was tested, just not with the constructed case.
Tree-SHA512: 95f665525f5922f70f4c17708c0c09900f38d7a652b5bdd817e017ba7ff2865a6234edbd340064ffccc20d34048c45df86a4ac5f46dd8f4aab98834e71dc9d3c
497e90c02b Remove default argument to prevector constructor to remove ambiguity (Ben Woosley)
Pull request description:
The call with this default argument is redundant with `prevector(size_type)` on line 251.
Tree-SHA512: 4d22e6f4cd56e4b700596d7f5afc945ec6684636a94690fa16a1bbb34e4f53b6340f53a6c314fea213359426474125228ba7193388789f8a13308506358e92db
f1640d093f Make IS_TRIVIALLY_CONSTRUCTIBLE consistent on GCC < 5 (Ben Woosley)
Pull request description:
`std::is_trivially_constructible<T>` is equivalent to `std::is_trivially_default_constructible<T>`
`std::has_trivial_default_constructor<T>` is the GCC < 5 name for `std::is_trivially_default_constructible<T>`
https://en.cppreference.com/w/cpp/types/is_default_constructiblehttps://www.gnu.org/software/gcc/gcc-5/changes.html
`std::is_trivial` was also used when compiling with clang, due to clang's use of `__GNUC__`. Test `__clang__` to target the intended implementations.
https://stackoverflow.com/a/28166605
All callers currently only pass one template argument to IS_TRIVIALLY_CONSTRUCTIBLE, with this change the build would fail if someone attempted passing more.
Tree-SHA512: 3e36ddf20a1c0d76ad94d7c95f3fe5b90f4ee00389d5516b35c657136205e7a3ddff60789b0b0b2375624631f15a51eaad3570ef19a7b9df1469a50ba28415d1
faf4a9b674 qa: Stop txindex thread before calling destructor (MarcoFalke)
Pull request description:
Same as #13894, but for the tests.
Tree-SHA512: a21d9f8ad8dc9703217d1808cb14bd969903c364fe30bbdc0dd2df170ddc0cbaba98b0bde28bc21ff1319222aaf6cb4f1b2c45cd6b236fe3c645a92eab6bacba
254c85b687 bench: Benchmark GCS filter creation and matching. (Jim Posen)
f33b717a85 blockfilter: Optimization on compilers with int128 support. (Jim Posen)
97b64d67da blockfilter: Unit test against BIP 158 test vectors. (Jim Posen)
a4afb9cadb blockfilter: Additional helper methods to compute hash and header. (Jim Posen)
cd09c7925b blockfilter: Serialization methods on BlockFilter. (Jim Posen)
c1855f6052 blockfilter: Construction of basic block filters. (Jim Posen)
53e7874e07 blockfilter: Simple test for GCSFilter construction and Match. (Jim Posen)
558c536e35 blockfilter: Implement GCSFilter Match methods. (Jim Posen)
cf70b55005 blockfilter: Implement GCSFilter constructors. (Jim Posen)
c454f0ac63 blockfilter: Declare GCSFilter class for BIP 158 impl. (Jim Posen)
9b622dc722 streams: Unit tests for BitStreamReader and BitStreamWriter. (Jim Posen)
fe943f99bf streams: Implement BitStreamReader/Writer classes. (Jim Posen)
87f2d9ee43 streams: Unit test for VectorReader class. (Jim Posen)
947133dec9 streams: Create VectorReader stream interface for vectors. (Jim Posen)
Pull request description:
This implements the compact block filter construction in [BIP 158](https://github.com/bitcoin/bips/blob/master/bip-0158.mediawiki). The code is not used anywhere in the Bitcoin Core code base yet. The next step towards [BIP 157](https://github.com/bitcoin/bips/blob/master/bip-0157.mediawiki) support would be to create an indexing module similar to `TxIndex` that constructs the basic and extended filters for each validated block.
### Filter Sizes
[Here](https://gateway.ipfs.io/ipfs/QmRqaAAQZ5ZX5eqxP7J2R1MzFrc2WDdKSWJEKtQzyawqog) is a CSV of filter sizes for blocks in the main chain.
As you can see below, the ratio of filter size to block size drops after the first ~150,000 blocks:
The reason for the relatively large filter sizes is that Golomb-coded sets only achieve good compression with a sufficient number of elements. Empirically, the average element size with 100 elements is 14% larger than with 10,000 elements.
The ratio of filter size to block size is computed without witness data for basic filters. Here is a summary table of filter size ratios *for blocks after height 150,000*:
| Stat | Filter Type |
|-------|--------------|
| Weighted Size Ratio Mean | 0.0198 |
| Size Ratio Mean | 0.0224 |
| Size Ratio Std Deviation | 0.0202 |
| Mean Element Size (bits) | 21.145 |
| Approx Theoretical Min Element Size (bits) | 21.025 |
Tree-SHA512: 2d045fbfc3fc45490ecb9b08d2f7e4dbbe7cd8c1c939f06bbdb8e8aacfe4c495cdb67c820e52520baebbf8a8305a0efd8e59d3fa8e367574a4b830509a39223f
9e0a514112 Add compile time checking for all cs_main runtime locking assertions (practicalswift)
Pull request description:
Add compile time checking for `cs_main` runtime locking assertions.
This PR is a subset of #12665. The PR was broken up to make reviewing easier.
The intention is that literally all `EXCLUSIVE_LOCKS_REQUIRED`/`LOCKS_EXCLUDED`:s added in this PR should follow either directly or indirectly from `AssertLockHeld(…)`/`AssertLockNotHeld(…)`:s already existing in the repo.
Consider the case where function `A(…)` contains `AssertLockHeld(cs_foo)` (without
first locking `cs_foo` in `A`), and that `B(…)` calls `A(…)` (without first locking `cs_main`):
* It _directly_ follows that: `A(…)` should have an `EXCLUSIVE_LOCKS_REQUIRED(cs_foo)` annotation.
* It _indirectly_ follows that: `B(…)` should have an `EXCLUSIVE_LOCKS_REQUIRED(cs_foo)` annotation.
Tree-SHA512: 120e7410c4c223dbc7d42030b1a19e328d01a55f041bb6fb5eaac10ac35cb0c5d469b9b3bda6444731164c73b88ac6495a00890672b107d9305e891571f64dd6
870bd4c73d Update functional RBF test to check replaceable flag (dexX7)
820d31f95f Add "bip125-replaceable" flag to mempool RPCs (dexX7)
Pull request description:
This pull request adds a flag "bip125-replaceable" to the mempool RPCs getrawmempool, getmempoolentry, getmempoolancestors and getmempooldescendants, which indicates whether an unconfirmed transaction might be replaced.
Initially the flag was added to the raw transaction RPCs, but thanks to @conscott, it was moved to the mempool RPCs, which actually have access to the mempool.
~~This pull request adds a flag "bip125-replaceable" to the RPCs "getrawtransaction" and "decoderawtransaction", which indicates, whether a transaction signals BIP 125 replaceability.~~
There was some discussion in #7817, whether showing replaceability in the UI could lead to the false assumption that transactions that don't signal BIP 125 are truely non-replaceable, but given that this PR tackles the raw transaction interface, which is a rather low level tool, I believe having this extra piece of information isn't bad.
Tree-SHA512: 1f5511957af2c20a9a6c79d80a335c3be37a2402dbf829c40cceaa01a24868eab81a9c1cdb0b3d77198fa3bb82799e3540a5c0ce7f35bbac80d73f7133ff7cbc
ddddce0e46 util: Replace boost::signals2 with std::function (MarcoFalke)
Pull request description:
This removes the `#include <boost/signals2/signal.hpp>` from `util.h` (hopefully speeding up the build time and reducing the memory usage further after #13634)
The whole translation interface is replaced by a function `G_TRANSLATION_FUN` that is set to nullptr in units that don't need translation. (Thus only set in the gui)
Tree-SHA512: 087c717358bbed8bdb409463e225239d667f1ced381abb10e7cd31a41dcdd2cebe20b43c2ee86f0f8e55d53301f75e963f07421a99a7ff4c0cad2c6a375c5ab1
Golomb-Rice coding, as specified in BIP 158, involves operations on
individual bits. These classes will be used to implement the
encoding/decoding operations.
fa6c3dea42 p2p: Clarify control flow in ProcessMessage() (MarcoFalke)
Pull request description:
`ProcessMessage` is effectively a massive switch case construct. In the past there were attempts to clarify the control flow in `ProcessMessage()` by moving each case into a separate static function (see #9608). It was closed because it wasn't clear if moving each case into a function was the right approach.
Though, we can quasi treat each case as a function by adding a return statement to each case. (Can be seen as a continuation of bugfix #13162)
This patch does exactly that.
Also note that this patch is a subset of previous approaches such as #9608 and #10145.
Review suggestion: `git diff HEAD~ --function-context`
Tree-SHA512: 91f6106840de2f29bb4f10d27bae0616b03a91126e6c6013479e1dd79bee53f22a78902b631fe85517dd5dc0fa7239939b4fefc231851a13c819458559f6c201
984d72ec65 Return the script type from Solver (Ben Woosley)
Pull request description:
Because false is synonymous with TX_NONSTANDARD, this conveys the same
information and makes the handling explicitly based on script type,
simplifying each call site.
Prior to this change it was common for the return value to be ignored, or for the
return value and TX_NONSTANDARD to be redundantly handled.
Tree-SHA512: 31864f856b8cb75f4b782d12678070e8b1cfe9665c6f57cfb25e7ac8bcea8a22f9a78d7c8cf0101c841f2a612400666fb91798bffe88de856e98b873703b0965
23f4343781 Add CMerkleTx::IsImmatureCoinBase method (Ben Woosley)
Pull request description:
All but one call to `GetBlocksToMaturity` is testing it relative to 0
for the purposes of determining whether the coinbase tx is immature.
In such case, the value greater than 0 implies that the tx is coinbase,
so there is no need to separately test that status.
This names the concept for easy singular use.
Tree-SHA512: 4470d07404a0707144f9827b9a94c5c4905f23ee6f9248edc5df599a59d28e21ea0201d8abe5d5d73b39cb05b60c861ea8e04767eef04433e2ee95dcfed653ee
std::is_trivially_constructible<T> is equivalent to std::is_trivially_default_constructible<T>
std::has_trivial_default_constructor<T> is the GCC < 5 name for std::is_trivially_default_constructible<T>
std::is_trivial was also used when compiling with clang, due to clang's use of __GNUC__. Test __clang__
to target the intended implementations.
317f2cb3f4 test: Check RPC settxfee errors (João Barbosa)
48618daf26 Add checks for settxfee reasonableness (Anthony Towns)
Pull request description:
When using the `settxfee` RPC, the value is silently ignored if it is less than either than minrelaytxfee or the wallet's mintxfee. This adds an error response if that's going to happen, but still allows "settxfee 0" to deliberately default to the minimum value.
Tree-SHA512: ce685584cf8d6b9ca2cc97196d494220e3892b6a804a458086e04b3a23df281da432ad0a3053106a064c90c541ddb6f6b96a27cf8376d45af1e44449baf88456
321159e53e don't report minversion wallet entry as unknown (Gregory Sanders)
Pull request description:
It is known in WalletBatch::LoadWallet
Tree-SHA512: 82f7e12f48ae7d17317074ce5b5e27c70ba8334b04adbf7cc863f8169cc1aa460b9454571e2698aa00059c8c8f669fe19c0d40c4910dcded260ddca6ce78be9d
