Commit graph

1328 commits

Author SHA1 Message Date
John Newbery
ea65182f03 [wallet] loadwallet shouldn't create new wallets.
A bug in the initial implementation of loadwallet meant that if the
arguement was a directory that didn't contain a wallet.dat file, a new
wallet would be created in that directory. Fix that so that if a
directory is passed in, it must contain a wallet.dat file.

Bug reported by promag (João Barbosa).
2018-06-28 13:37:44 -04:00
Pieter Wuille
f54f3738c8
Merge #13498: [wallet] Fixups from account API deprecation
df10f07db1 [wallet] Don't use accounts when checking balance in sendmany (John Newbery)
e209184101 [wallet] deprecate sendfrom RPC method. (John Newbery)

Pull request description:

  A couple of fixups from the accounts API deprecation PR (#12953):

  - properly deprecate `sendfrom`
  - don't use accounts when calculating balance in `sendmany` (unless the `-deprecatedrpc=accounts` flag is being used)

Tree-SHA512: 1befde055067438c4c3391bbff1aaed0e6249efd708c567db3f1faad40a0f28e64f95e5bad0679ae826d24a0239e4bc8a1c392dc93e2e7502343a7f6b1d1845c
2018-06-26 16:46:49 -07:00
Wladimir J. van der Laan
452bb90c71
Merge #13507: RPC: Fix parameter count check for importpubkey
3f72d04e29 Fix parameter count check for importpubkey. (Kristaps Kaupe)

Pull request description:

  Found this while working on #13464. Parameter count check for `importpubkey` was wrong.

Tree-SHA512: aba41b666c6493379f320be5e3e438a6cad1a96429102ff4428c092c48f29c2eead2195792c0b018296f20e1c42eb091dd5b9886c42cecbb1f0d03d5def14705
2018-06-25 20:43:30 +02:00
Wladimir J. van der Laan
868cf431be
Merge #13160: wallet: Unlock spent outputs
fd9b3a7182 test: Output should be unlocked when spent (João Barbosa)
54c3bb4cf8 wallet: Unlock spent outputs (João Barbosa)

Pull request description:

  Fixes #12738.

Tree-SHA512: 2c1694727aea0c658d07566c7d11d7afe91218053f84d568fac97413348fa5a977243d6cdeebd1c6550816489e35cb3a31667c8354d9b350de99f979d641d605
2018-06-24 18:52:30 +02:00
Wladimir J. van der Laan
31145a3d7c
Merge #13480: Avoid copies in range-for loops and add a warning to detect them
d92204c900 build: add warning to detect hidden copies in range-for loops (Cory Fields)
466e16e0e8 cleanup: avoid hidden copies in range-for loops (Cory Fields)

Pull request description:

  Following-up on #13241, which was itself a follow-up of #12169.

  See title. Fixing these would otherwise be a continuous process, adding the warning should keep them from cropping up.

  Note that the warning seems to be Clang-only for now.

Tree-SHA512: ccfb769c3128b3f92c95715abcf21ee2496fe2aa384f80efead1529a28eeb56b98995b531b49a089f8142601389e63f7bb935963d724eacde4f5e1b4a024934b
2018-06-24 16:36:40 +02:00
Jonas Schnelli
000abbb6b0
Merge #13111: Add unloadwallet RPC
fe65bdec2 bugfix: Delete walletView in WalletFrame::removeWallet (João Barbosa)
0b82bac76 bugfix: Remove dangling wallet env instance (João Barbosa)
0ee77b207 ui: Support wallets unloaded dynamically (João Barbosa)
9f9b50d5f doc: Add release notes for unloadwallet RPC (João Barbosa)
ccbf7ae74 test: Wallet methods are disabled when no wallet is loaded (João Barbosa)
4940a20a4 test: Add functional tests for unloadwallet RPC (João Barbosa)
6608c369b rpc: Add unloadwallet RPC (João Barbosa)
537efe19e rpc: Extract GetWalletNameFromJSONRPCRequest from GetWalletForJSONRPCRequest (João Barbosa)

Pull request description:

  This patch adds wallet unload feature via RPC. It also adds UI support for unloaded wallets.

Tree-SHA512: 7c7f9f32f7a2266d2df574aa6b95f993c3dc82736f93304562122beb8756fb28cd22d03866b48f493c747441f22d30e196b098dec435cc25e035633f090351ea
2018-06-21 16:24:31 +02:00
Kristaps Kaupe
3f72d04e29 Fix parameter count check for importpubkey. 2018-06-20 00:34:38 +03:00
Jonas Schnelli
3a03d2a33f
Qt: load wallet in UI after possible init aborts 2018-06-19 21:33:13 +02:00
John Newbery
df10f07db1 [wallet] Don't use accounts when checking balance in sendmany 2018-06-18 12:33:16 -04:00
John Newbery
e209184101 [wallet] deprecate sendfrom RPC method. 2018-06-18 12:33:15 -04:00
João Barbosa
0b82bac76d bugfix: Remove dangling wallet env instance 2018-06-18 16:35:39 +01:00
João Barbosa
ccbf7ae749 test: Wallet methods are disabled when no wallet is loaded 2018-06-18 16:35:17 +01:00
João Barbosa
6608c369b1 rpc: Add unloadwallet RPC 2018-06-18 16:35:17 +01:00
Wladimir J. van der Laan
0882406854
Merge #13437: wallet: Erase wtxOrderd wtx pointer on removeprunedfunds
faa18ca046 wallet: Erase wtxOrderd wtx pointer on removeprunedfunds (MarcoFalke)

Pull request description:

  This prevents segfaults, when reading from the freed memory.

Tree-SHA512: 04f8190dea7901cf1cc298d5db98c83b02858f27114c5ef4da738accd176d6647d6b81f3dc39f3d5912b1a981cf0599370fd391c4154ffbde97afc1fac389123
2018-06-18 17:34:20 +02:00
Cory Fields
466e16e0e8 cleanup: avoid hidden copies in range-for loops 2018-06-15 13:40:00 -04:00
MarcoFalke
be27048a18
Merge #13241: scripted-diff: Avoid temporary copies when looping over std::map
9b72c988a0 scripted-diff: Avoid temporary copies when looping over std::map (Ben Woosley)

Pull request description:

  The ::value_type of the std::map/std::multimap/std::unordered_map containers is
  std::pair<const Key, T>. Dropping the const results in an unnecessary copy,
  for example in C++11 range-based loops.

  For this I started with a more general scripted diff, then narrowed it down
  based on the inspection showing that all actual map/multimap/unordered_map
  variables used in loops start with m or have map in the name.

Tree-SHA512: b656d66b69ffa1eb954124aa8ae2bc5436ca50262abefa93bdda55cfcdaffc5ff90cd40539051a2bd06355ba69ddf245265cc8764eebff66d761b3aec06155a9
2018-06-15 12:32:39 -04:00
Wladimir J. van der Laan
ca2a23387b
Merge #13120: policy: Treat segwit as always active
fa7a6cf1b3 policy: Treat segwit as always active (MarcoFalke)

Pull request description:

  Now that segwit is active for a long time, there is no need to reject transactions with the reason that segwit hasn't activated.

  Strictly speaking, this is a bug fix, because with the release of 0.16, we create segwit transactions in our wallet by default without checking if they are allowed by local policy.

  More broadly, this simplifies the code as if "premature witness" was always set to true with the corresponding command line args.

Tree-SHA512: 484c26aa3a66faba6b41e8554a91a29bfc15fbf6caae3d5363a3966283143189c4bd5333a610b0669c1238f75620691264e73f6b9f1161cdacf7574d946436da
2018-06-12 17:20:34 +02:00
João Barbosa
537efe19e6 rpc: Extract GetWalletNameFromJSONRPCRequest from GetWalletForJSONRPCRequest 2018-06-12 16:11:28 +01:00
Ben Woosley
9b72c988a0
scripted-diff: Avoid temporary copies when looping over std::map
The ::value_type of the std::map/std::multimap/std::unordered_map containers is
std::pair<const Key, T>. Dropping the const results in an unnecessary copy,
for example in C++11 range-based loops.

For this I started with a more general scripted diff, then narrowed it down
based on the inspection showing that all actual map/multimap/unordered_map
variables used in loops start with m or have map in the name.

-BEGIN VERIFY SCRIPT-
sed -i -E 's/for \(([^<]*)std::pair<([^c])(.+) : m/for (\1std::pair<const \2\3 : m/' src/*.cpp src/**/*.cpp
sed -i -E 's/for \(([^<]*)std::pair<([^c])(.+) : (.*)map/for (\1std::pair<const \2\3 : \4map/' src/*.cpp src/**/*.cpp
-END VERIFY SCRIPT-
2018-06-11 13:12:55 -07:00
Wladimir J. van der Laan
7c32b414b6
Merge #13230: Simplify include analysis by enforcing the developer guide's include syntax
16e3cd380a Clarify include recommendation (practicalswift)
6d10f43738 Enforce the use of bracket syntax includes ("#include <foo.h>") (practicalswift)
906bee8e5f Use bracket syntax includes ("#include <foo.h>") (practicalswift)

Pull request description:

  When analysing includes in the project it is often assumed that the preferred bracket include syntax (`#include <foo.h>`) mentioned in `developer-docs.md` is used consistently. @sipa:s excellent circular dependencies script [`circular-dependencies.py`](50c69b7801/contrib/devtools/circular-dependencies.py) (#13228) is an example of a script making this reasonable assumption.

  This PR enables automatic Travis checking of the include syntax making sure that the bracket syntax includes (`#include <foo.h>`) is used consistently.

Tree-SHA512: a414921aabe8e487ebed42f3f1cbd02fecd1add385065c1f2244cd602c31889e61fea5a801507ec501ef9bd309b05d3c999f915cec1c2b44f085bb0d2835c182
2018-06-11 20:24:58 +02:00
MarcoFalke
faa18ca046
wallet: Erase wtxOrderd wtx pointer on removeprunedfunds 2018-06-11 14:06:59 -04:00
Wladimir J. van der Laan
43ae5ee9e4
Merge #12634: [refactor] Make TransactionWithinChainLimit more flexible
f77e1d34fd test: Add MempoolAncestryTests (Karl-Johan Alm)
a08d76bcfe mempool: Calculate descendant maximum thoroughly (Karl-Johan Alm)
6d3568371e wallet: Switch to using ancestor/descendant limits (Karl-Johan Alm)
6888195b06 wallet: Strictly greater than for ancestor caps (Karl-Johan Alm)
322b12ac4e Remove deprecated TransactionWithinChainLimit (Karl-Johan Alm)
4784751547 Switch to GetTransactionAncestry() in OutputEligibleForSpending (Karl-Johan Alm)
475a385a80 Add GetTransactionAncestry to CTxMemPool for general purpose chain limit checking (Karl-Johan Alm)
46847d69d2 mempool: Fix max descendants check (Karl-Johan Alm)
b9ef21dd72 mempool: Add explicit max_descendants (Karl-Johan Alm)

Pull request description:

  Currently, `TransactionWithinChainLimit` is restricted to single-output use, and needs to be called every time for different limits. If it is replaced with a chain limit value calculator, that can be called once and reused, and is generally more flexible (see e.g. #12257).

  Update: this PR now corrects usage of max ancestors / max descendants, including calculating the correct max descendant value, as advertised for the two limits.

  ~~This change also makes `nMaxAncestors` signed, as the replacement method will return `-1` for "not in the mempool", which is different from "0", which means "no ancestors/descendants in mempool".~~

  ~~This is a subset of #12257.~~

Tree-SHA512: aa59c849360542362b3126c0e29d44d3d58f11898e277d38c034dc4b86a5b4500f77ac61767599ce878c876b5c446fec9c02699797eb2fa41e530ec863a00cf9
2018-06-11 16:25:46 +02:00
Wladimir J. van der Laan
3f0f39415b
Merge #13060: [wallet] [rpc] Remove getlabeladdress RPC
67e0e04140 [wallet] [docs] Update release notes for removing `getlabeladdress` (John Newbery)
81608178cf [wallet] [rpc] Remove getlabeladdress RPC (John Newbery)

Pull request description:

  labels are associated with addresses (rather than addresses being
  associated with labels, as was the case with accounts). The
  getlabeladdress does not make sense in this model, so remove it.

  getaccountaddress is still supported for one release as the accounts
  API is deprecated.

Tree-SHA512: 7f45d0456248ebcc4e54dd34e2578a09a8ea8e4fceda75238ccea9d731dc99a3f3c0519b18a9739de17d2e6e59c9c2259ba67c9ae2e3cb2a40ddb14b9193fe29
2018-06-11 15:21:24 +02:00
Karl-Johan Alm
6d3568371e
wallet: Switch to using ancestor/descendant limits
Instead of combining the -limitancestorcount and -limitdescendantcount into a nMaxChainLength, this commit uses each one separately in the coin eligibility filters.
2018-06-11 19:04:56 +09:00
Karl-Johan Alm
6888195b06
wallet: Strictly greater than for ancestor caps 2018-06-11 19:04:56 +09:00
Karl-Johan Alm
4784751547
Switch to GetTransactionAncestry() in OutputEligibleForSpending 2018-06-11 19:04:55 +09:00
Karl-Johan Alm
b9ef21dd72
mempool: Add explicit max_descendants
TransactionWithinChainLimits would take a 'limit' and check it against ascendants and descendants. This is changed to take an explicit
max ancestors and max descendants value, and to test the corresponding value against its corresponding max.
2018-06-11 19:04:55 +09:00
practicalswift
906bee8e5f Use bracket syntax includes ("#include <foo.h>") 2018-06-06 11:09:05 +02:00
Wladimir J. van der Laan
f0fd39f376
Merge #13269: refactoring: Drop UpdateTransaction in favor of UpdateInput
6aa33feadb Drop UpdateTransaction in favor of UpdateInput (Ben Woosley)

Pull request description:

  Updating the input explicitly requires the caller to present a mutable
  input, which more clearly communicates the effects and intent of the call
  (and, often, the enclosing loop).

  In most cases, this input is already immediately available and need not be
  looked up.

Tree-SHA512: 8c7914a8b7ae975d8ad0e9d760e3c5da65776a5f79d060b8ffb6b3ff7a32235f71ad705f2185b368d9263742d7796bb562395d22b806d90e8502d8c496011e57
2018-06-05 19:06:16 +02:00
Jonas Schnelli
343d4e44ef
Merge #13058: [wallet] createwallet RPC - create new wallet at runtime
f7e153e95 [wallets] [docs] Add release notes for createwallet RPC. (John Newbery)
32167e830 [wallet] [tests] Add tests for `createwallet` RPC. (John Newbery)
942131774 [wallet] [rpc] Add `createwallet` RPC (John Newbery)

Pull request description:

  Adds a `createwallet` RPC to dynamically create a new wallet at runtime.

  Includes tests and release notes.

Tree-SHA512: e0d89e3ae498234e9db5b827c56804cbab64f18a1875e2b5e676172c110278ea1b9e93a8a61b8dd80e2f2a691490bf229e923e4ccb284a1d3e420b8317815866
2018-06-01 10:46:45 +02:00
John Newbery
f7e153e95f [wallets] [docs] Add release notes for createwallet RPC. 2018-05-31 17:10:20 -04:00
Wladimir J. van der Laan
36fc8052f6
Merge #13309: Directly operate with CMutableTransaction in SignSignature
6b8b63af14 Generic TransactionSignatureCreator works with both CTransaction and CMutableTransaction (Martin Ankerl)

Pull request description:

  Refactored `TransactionSignatureCreator` into a templated `GenericTransactionSignatureCreator` that works with both `CMutableTransaction` and `CTransaction`.

  The advantage is that now in `SignSignature`, the `MutableTransactionSignatureCreator` can now operate directly with the `CMutableTransaction` without the need to copy the data into a `CTransaction`.

  Running all unit tests brings a very noticable speedup on my machine:

      48.4 sec before this change
      36.4 sec with this change
      --------
      12.0 seconds saved

  running only `--run_test=transaction_tests/test_big_witness_transaction`:

      16.7 sec before this change
       5.9 sec with this change
      --------
      10.8 seconds saved

  This relates to my first attempt with the const_cast hack #13202, and to the slow unit test issue #10026.

  Also see #13050 which modifies the tests but not the production code (like this PR) to get a speedup.

Tree-SHA512: 2cff0e9699f484f26120a40e431a24c8bc8f9e780fd89cb0ecf20c5be3eab6c43f9c359cde244abd9f3620d06c7c354e3b9dd3da41fa2ca1ac1e09386fea25fb
2018-05-31 10:40:11 +02:00
MarcoFalke
472fe8a2ce
Merge #13069: docs: Fix typos
d8c4998f31 Fix typos (practicalswift)

Pull request description:

  Fix typos.

Tree-SHA512: 9af52a9799e6892b162e4aa1bcd6585502e10650b8aced59e7346dbb2f08544330081eb79328255fad1d358c095507956e049d354c4383b6965d4d5a7d635425
2018-05-30 16:02:09 -04:00
Wladimir J. van der Laan
c4cc8d9930
Merge #13252: Wallet: Refactor ReserveKeyFromKeyPool for safety
4b62bdf513 Wallet: Refactor ReserveKeyFromKeyPool for safety (Ben Woosley)

Pull request description:

  ReserveKeyFromKeyPool's previous behaviour is to set nIndex to -1 if the keypool is
  empty, OR throw an exception for technical failures. Instead, we now return false
  if the keypool is empty, true if the operation succeeded.

  This is to make failure more easily detectable by calling code.

Tree-SHA512: 753f057ad13bd4c28d121f426bf0967ed72b827d97fb24582f9326ec60072abc5482e3db69ccada7c5fc66de9957fc59098432dd223fc4116991cab44c6d7aef
2018-05-30 19:39:17 +02:00
Martin Ankerl
6b8b63af14 Generic TransactionSignatureCreator works with both CTransaction and CMutableTransaction
Templated version so that no copying of CMutableTransaction into a CTransaction is
necessary. This speeds up the test case transaction_tests/test_big_witness_transaction
from 7.9 seconds to 3.1 seconds on my machine.
2018-05-30 16:01:36 +02:00
Wladimir J. van der Laan
3d4fa83587 Stop translating command line options
Many options are extremely technical, and refer internals, making it
difficult to translate usefully. This came up in discussion of e.g.
 #10949. If a message is not understood by translators (which are
typically end-users, not developers) they'll either translate it
literally, making it harder to understand instead of easier, with the
added drawback of the user no longer being able to google it.

Also the translation was only working for bitcoin-qt as with
the console programs, there is no translation backend. So it was
injecting never-used translation messages for bitcoin-cli, -tx.

For these reasons, stop translating options help completely. This should
not affect the output **in any way** except for bitcoin-qt when a
non-English language is configured in the locale.

This implements #10962.
2018-05-30 14:23:35 +02:00
MarcoFalke
fa7a6cf1b3
policy: Treat segwit as always active 2018-05-29 16:49:52 -04:00
Wladimir J. van der Laan
56fe3dc235
Merge #13142: Separate IsMine from solvability
c004ffc9b4 Make handling of invalid in IsMine more uniform (Pieter Wuille)
a53f0feff8 Add some checks for invalid recursion in IsMine (Pieter Wuille)
b5802a9f5f Simplify IsMine logic (Pieter Wuille)
4e91820531 Make IsMine stop distinguishing solvable/unsolvable (Pieter Wuille)
6d714c3419 Make coincontrol use IsSolvable to determine solvability (Pieter Wuille)

Pull request description:

  Our current `IsMine` logic does several things with outputs:
  * Determine "spendability" (roughly corresponding to "could we sign for this")
  * Determine "watching" (is this an output directly or indirectly a watched script)
  * Determine invalidity (is this output definitely not legally spendable, detecting accidental uncompressed pubkeys in witnesses)
  * Determine "solvability" (would we be able to sign for this ignoring the fact that we may be missing some private keys).

  The last item (solvability) is mostly unrelated and only rarely needed (there is just one instance, inside the wallet's coin control logic). This PR changes that instance to use the separate `IsSolvable` function, and stop `IsMine` from distinguishing between solvable and unsolvable.

  As an extra, this also simplifies the `IsMine` logic and adds some extra checks (which wouldn't be hit unless someone adds already invalid scripts to their wallet).

Tree-SHA512: 95a6ef75fbf2eedc5ed938c48a8e5d77dcf09c933372acdd0333129fb7301994a78498f9aacce2c8db74275e19260549dd67a83738e187d40b5090cc04f33adf
2018-05-29 15:12:16 +02:00
John Newbery
9421317740 [wallet] [rpc] Add createwallet RPC
Add a `createwallet` RPC to allow wallets to be created dynamically at
runtime. This functionality is currently only available through RPC and
newly created wallets will not be displayed in the GUI.
2018-05-25 12:10:21 -04:00
João Barbosa
54c3bb4cf8 wallet: Unlock spent outputs 2018-05-25 14:27:58 +01:00
Wladimir J. van der Laan
6378eef18f
Merge #13063: Use shared pointer to retain wallet instance
80b4910f7d wallet: Use shared pointer to retain wallet instance (João Barbosa)

Pull request description:

  Currently there are 3 places where it makes sense to retain a wallet shared pointer:
   - `vpwallets`;
   - `interfaces::Wallet` interface instance - used by the UI;
   - wallet RPC functions - given by `GetWalletForJSONRPCRequest`.

  The way it is now it is possible to have, for instance, listunspent RPC and in parallel unload the wallet (once #13111 is merged) without blocking. Once the RPC finishes, the shared pointer will release the wallet.

  It is also possible to get all existing wallets without blocking because the caller keeps a local list of shared pointers.

  This is mostly relevant for wallet unloading.

  This PR replaces #11402.

Tree-SHA512: b7e37c7e1ab56626085afe2d40b1628e8d4f0dbda08df01b7e618ecd2d894ce9b83d4219443f444ba889096286eff002f163cb0a48f37063b62e9ba4ccfa6cce
2018-05-24 11:58:41 +02:00
Wladimir J. van der Laan
3c2a41a9fc
Merge #13011: Cache witness hash in CTransaction
fac1223a56 Cache witness hash in CTransaction (MarcoFalke)
faab55fbb1 Make CMutableTransaction constructor explicit (MarcoFalke)

Pull request description:

  This speeds up:
  * compactblocks (v2)
  * ATMP
  * validation and miner (via `BlockWitnessMerkleRoot`)
  * sigcache (see also unrelated #13204)
  * rpc and rest (nice, but irrelevant)

  This presumably slows down rescan, which uses a `CTransaction` and its `GetHash`, but never uses the `GetWitnessHash`. The slow down is proportional to the number of witness transactions in the rescan window. I.e. early in the chain there should be no measurable slow down. Later in the chain, there should be a slow down, but acceptable given the speedups in the modules mentioned above.

Tree-SHA512: 443e86acfcceb5af2163e68840c581d44159af3fd1fce266cab3504b29fcd74c50812b69a00d41582e7e1c5ea292f420ce5e892cdfab691da9c24ed1c44536c7
2018-05-23 19:26:18 +02:00
João Barbosa
80b4910f7d wallet: Use shared pointer to retain wallet instance 2018-05-22 16:56:20 +01:00
John Newbery
be87c6f837 [wallet] Fix incorrect comment for DeriveNewSeed. 2018-05-21 12:57:40 -04:00
John Newbery
79053a5f2b [rpc] [wallet] Add 'hdmasterkeyid' alias return values.
Restores the  return value in getwalletinfo() and getaddressinfo()
RPC methods for backwards compatibility
2018-05-19 11:21:20 -04:00
John Newbery
c75c351419 [refactor] manually change remaining instances of master key to seed. 2018-05-19 11:21:15 -04:00
John Newbery
131d4450b9 scripted-diff: Rename master key to seed
-BEGIN VERIFY SCRIPT-

ren() { git grep -l "\<$1\>" 'src/*.cpp' 'src/*.h' test | xargs sed -i "s:\<$1\>:$2:g"; }
ren GenerateNewHDMasterKey  GenerateNewSeed
ren DeriveNewMasterHDKey    DeriveNewSeed
ren SetHDMasterKey          SetHDSeed
ren hdMasterKeyID           hd_seed_id
ren masterKeyID             seed_id
ren SetMaster               SetSeed
ren hdmasterkeyid           hdseedid
ren hdmaster                hdseed

-END VERIFY SCRIPT-
2018-05-19 11:16:00 -04:00
Ben Woosley
6aa33feadb
Drop UpdateTransaction in favor of UpdateInput
Updating the input explicitly requires the caller to present a mutable
input, which more clearly communicates the effects and intent of the method.

In most cases, this input is already immediately available and need not be
looked up.
2018-05-18 11:08:13 -07:00
Wladimir J. van der Laan
b0d2ca9fb6 wallet: Exit SyncMetaData if there are no transactions to sync
Instead of crash with an assertion error, simply exit the function
`SyncMetaData` if there is no metadata to sync.

Fixes #13110.
2018-05-17 22:07:32 +02:00
Ben Woosley
4b62bdf513
Wallet: Refactor ReserveKeyFromKeyPool for safety
ReserveKeyFromKeyPool's previous behaviour is to set nIndex to -1 if the keypool is
empty, OR throw an exception for technical failures. Instead, we now return false
if the keypool is empty, true if the operation succeeded.

This is to make failure more easily detectable by calling code.
2018-05-16 22:58:02 -07:00