In spite of the name FindLatestBefore used std::lower_bound to try
to find the earliest block with a nTime greater or equal to the
the requested value. But lower_bound uses bisection and requires
the input to be ordered with respect to the comparison operation.
Block times are not well ordered.
I don't know what lower_bound is permitted to do when the data
is not sufficiently ordered, but it's probably not good.
(I could construct an implementation which would infinite loop...)
To resolve the issue this commit introduces a maximum-so-far to the
block indexes and searches that.
For clarity the function is renamed to reflect what it actually does.
An issue that remains is that there is no grace period in importmulti:
If a address is created at time T and a send is immediately broadcast
and included by a miner with a slow clock there may not yet have been
any block with at least time T.
The normal rescan has a grace period of 7200 seconds, but importmulti
does not.
4e7e2e1 Update RPC argument names (John Newbery)
481f289 rpc: Named argument support for bitcoin-cli (Wladimir J. van der Laan)
9adb4e1 rpc: Argument name consistency (Wladimir J. van der Laan)
8d713f7 rpc: Named arguments for rawtransaction calls (Wladimir J. van der Laan)
37a166f rpc: Named arguments for wallet calls (Wladimir J. van der Laan)
78b684f rpc: Named arguments for mining calls (Wladimir J. van der Laan)
b8ebc59 rpc: Named arguments for net calls (Wladimir J. van der Laan)
2ca9dcd test: Add test for RPC named arguments (Wladimir J. van der Laan)
fba1a61 rpc: Named arguments for misc calls (Wladimir J. van der Laan)
286ec08 rpc: Add 'echo' call for testing (Wladimir J. van der Laan)
495eb44 rpc: Named arguments for blockchain calls (Wladimir J. van der Laan)
6f1c76a rpc: Support named arguments (Wladimir J. van der Laan)
5865d41 authproxy: Add support for RPC named arguments (Wladimir J. van der Laan)
Previously addnodes were in competition with outbound connections
for access to the eight outbound slots.
One result of this is that frequently a node with several addnode
configured peers would end up connected to none of them, because
while the addnode loop was in its two minute sleep the automatic
connection logic would fill any free slots with random peers.
This is particularly unwelcome to users trying to maintain links
to specific nodes for fast block relay or purposes.
Another result is that a group of nine or more nodes which are
have addnode configured towards each other can become partitioned
from the public network.
This commit introduces a new limit of eight connections just for
addnode peers which is not subject to any of the other connection
limitations (including maxconnections).
The choice of eight is sufficient so that under no condition would
a user find themselves connected to fewer addnoded peers than
previously. It is also low enough that users who are confused
about the significance of more connections and have gotten too
copy-and-paste happy will not consume more than twice the slot
usage of a typical user.
Any additional load on the network resulting from this will likely
be offset by a reduction in users applying even more wasteful
workaround for the prior behavior.
The retry delays are reduced to avoid nodes sitting around without
their added peers up, but are still sufficient to prevent overly
aggressive repeated connections. The reduced delays also make
the system much more responsive to the addnode RPC.
Ban-disconnects are also exempted for peers added via addnode since
the outbound addnode logic ignores bans. Previously it would ban
an addnode then immediately reconnect to it.
A minor change was also made to CSemaphoreGrant so that it is
possible to re-acquire via an object whos grant was moved.
The meaning is clear from the context, and we're inconsistent here.
Also save typing when using named arguments.
- `bitcoinaddress` -> `address`
- `bitcoinprivkey` -> `privkey`
- `bitcoinpubkey` -> `pubkey`
The [JSON-RPC specification](http://www.jsonrpc.org/specification) allows passing parameters as an Array, for by-position
arguments, or an Object, for by-name arguments.
This implements by-name arguments, but preserves full backwards compatibility. API using by-name arguments are
easier to extend, and easier to use (no need to guess which argument goes where).
Named are mapped to positions by a per-call structure, provided through the RPC command table.
Missing arguments will be replaced by null, except if at the end, then the argument is left out completely.
Currently calls fail (though not crash) on intermediate nulls, but this should be improved on a per-call basis later.
dd0df81 Document ConnectBlock connectTrace postconditions (Matt Corallo)
2d6e561 Switch pblock in ProcessNewBlock to a shared_ptr (Matt Corallo)
2736c44 Make the optional pblock in ActivateBestChain a shared_ptr (Matt Corallo)
ae4db44 Create a shared_ptr for the block we're connecting in ActivateBCS (Matt Corallo)
fd9d890 Keep blocks as shared_ptrs, instead of copying txn in ConnectTip (Matt Corallo)
6fdd43b Add struct to track block-connect-time-generated info for callbacks (Matt Corallo)
76faa3c Rename the remaining main.{h,cpp} to validation.{h,cpp} (Matt Corallo)
e736772 Move network-msg-processing code out of main to its own file (Matt Corallo)
87c35f5 Remove orphan state wipe from UnloadBlockIndex. (Matt Corallo)
ae22357 Replace CValidationState param in ProcessNewBlock with BlockChecked (Matt Corallo)
7c98ce5 Remove pfrom parameter from ProcessNewBlock (Matt Corallo)
e2e069d Revert "RPC: Give more details when "generate" fails" (Matt Corallo)
d4833ff Bump the protocol version to distinguish new banning behavior. (Suhas Daftuar)
88c3549 Fix compact block handling to not ban if block is invalid (Suhas Daftuar)
c93beac [qa] Test that invalid compactblocks don't result in ban (Suhas Daftuar)
444c673 bench: Add benchmark for lockedpool allocation/deallocation (Wladimir J. van der Laan)
6567999 rpc: Add `getmemoryinfo` call (Wladimir J. van der Laan)
4536148 support: Add LockedPool (Wladimir J. van der Laan)
f4d1fc2 wallet: Get rid of LockObject and UnlockObject calls in key.h (Wladimir J. van der Laan)
999e4c9 wallet: Change CCrypter to use vectors with secure allocator (Wladimir J. van der Laan)
```
getmemoryinfo
Returns an object containing information about memory usage.
Result:
{
"locked": { (json object) Information about locked memory manager
"used": xxxxx, (numeric) Number of bytes used
"free": xxxxx, (numeric) Number of bytes available in current arenas
"total": xxxxxxx, (numeric) Total number of bytes managed
"locked": xxxxxx, (numeric) Amount of bytes that succeeded locking. If this number is smaller than total, locking pages failed at some point and key data could be swapped to disk.
}
}
Examples:
> bitcoin-cli getmemoryinfo
> curl --user myusername --data-binary '{"jsonrpc": "1.0", "id":"curltest", "method": "getmemoryinfo", "params": [] }' -H 'content-type: text/plain;' http://127.0.0.1:8332/
```
There were discrepancies between usage of "block chain" and "blockchain", I've changed them to the latter. The reason for this was that Wikipedia when describing this data structure writes "A blockchain — *originally block chain*", so it seemed the more appropriate term.
a9aec5c Use BlockChecked signal to send reject messages from mapBlockSource (Matt Corallo)
7565e03 Remove SyncWithWallets wrapper function (Matt Corallo)
12ee1fe Always call UpdatedBlockTip, even if blocks were only disconnected (Matt Corallo)
f5efa28 Remove CConnman parameter from ProcessNewBlock/ActivateBestChain (Matt Corallo)
fef1010 Use CValidationInterface from chain logic to notify peer logic (Matt Corallo)
aefcb7b Move net-processing logic definitions together in main.h (Matt Corallo)
0278fb5 Remove duplicate nBlocksEstimate cmp (we already checked IsIBD()) (Matt Corallo)
87e7d72 Make validationinterface.UpdatedBlockTip more verbose (Matt Corallo)
Base64 contains '/', and the '/' character in credentials is problematic
for AuthServiceProxy which represents the RPC endpoint as an URI with
user and password embedded.
Closes#8399.
waitfornewblock waits until a new block is received, or the timeout expires, then
returns the current block height/hash.
waitforblock waits for a specific blockhash, or until the timeout expires, then
returns the current block height/hash. If the target blockhash is the current
tip, it will return immediately.
waitforblockheight waits until the tip has reached a certain height or higher,
then returns the current height and hash.
waitforblockheight is used to avoid polling in the rpc tests.
fafe7b3 contrib: Make fix-copyright-headers.py more portable (MarcoFalke)
fa27c0a [doc] Fix typos in comments, doxygen: Fix comment syntax (MarcoFalke)
fabfd5d [qa] pull-tester: Don't mute zmq ImportError (MarcoFalke)
67a5502 init: Fix typo in help message for -whitelistforcerelay (Wladimir J. van der Laan)
9e9d644 net: fixup nits (Cory Fields)
8945384 net: Have LookupNumeric return a CService directly (Cory Fields)
21ba407 net: narrow include scope after moving to netaddress (Cory Fields)
21e5b96 net: move CNetAddr/CService/CSubNet out of netbase (Cory Fields)
1017b8a net: Add direct tests for new CSubNet constructors (Cory Fields)
b6c3ff3 net: Split resolving out of CSubNet (Cory Fields)
f96c7c4 net: Split resolving out of CService (Cory Fields)
31d6b1d net: Split resolving out of CNetAddr (Cory Fields)
c784086 use std::map::emplace() instead of std::map::insert() (whythat)
5e187e7 use c++11 std::unique_ptr instead of boost::shared_ptr (whythat)
947913f use std::map::erase(const_iterator, const_iterator) to get non-constant iterator (whythat)
CreateNewBlock returns a pointer for which the caller takes ownership.
Use std::unique_ptr to make this explicit and simplify handling of these
objects in getblocktemplate.
1a5a4e6 Randomize name lookup result in ConnectSocketByName (Pieter Wuille)
f9f5cfc Prevent duplicate connections where one is by name and another by ip (Pieter Wuille)
1111b80 Rework addnode behaviour (Pieter Wuille)
* Use CNode::addeName to track whether a connection to a name is already open
* A new connection to a previously-connected by-name addednode is only opened when
the previous one closes (even if the name starts resolving to something else)
* At most one connection is opened per addednode (even if the name resolves to multiple)
* Unify the code between ThreadOpenAddedNodeConnections and getaddednodeinfo
* Information about open connections is always returned, and the dns argument becomes a dummy
* An IP address and inbound/outbound is only reported for the (at most 1) open connection
c2dd5a3 FIX: correctly measure size of priority block (Alex Morcos)
a278764 FIX: Account for txs already added to block in addPriorityTxs (Alex Morcos)
4dc94d1 Refactor CreateNewBlock to be a method of the BlockAssembler class (Alex Morcos)
6182d10 Do not increment nAttempts by more than one for every Good connection. (Gregory Maxwell)
c769c4a Avoid counting failed connect attempts when probably offline. (Gregory Maxwell)
ae357d5 [Bitcoin-Tx] Add tests for sequence number support (Jonas Schnelli)
e59336f [bitcoin-tx] allow to set nSequence number over the in= command (Jonas Schnelli)
a946bb6 [RPC] createrawtransaction: add option to set the sequence number per input (Jonas Schnelli)
Also introduce UniValueType
UniValueType is a wrapper for UniValue::VType which allows setting
a typeAny flag. This flag indicates the type does not matter.
(Used by RPCTypeCheckObj)
- BIP9DeploymentInfo struct for static deployment info
- VersionBitsDeploymentInfo: Avoid C++11ism by commenting parameter names
- getblocktemplate: Make sure to set deployments in the version if it is LOCKED_IN
- In this commit, all rules are considered required for clients to support
If a node is offline failed outbound connection attempts will crank up
the addrman counter and effectively blow away our state.
This change reduces the problem by only counting attempts made while
the node believes it has outbound connections to at least two
netgroups.
Connect and addnode connections are also not counted, as there is no
reason to unequally penalize them for their more frequent
connections -- though there should be no real effect from this
unless their addnode configureation is later removed.
Wasteful repeated connection attempts while only a few connections are
up are avoided via nLastTry.
This is still somewhat incomplete protection because our outbound
peers could be down but not timed out or might all be on 'local'
networks (although the requirement for multiple netgroups helps).
5d5e7a0 net: No need to export ConnectNode (Cory Fields)
e9ed620 net: No need to export DumpBanlist (Cory Fields)
8b8f877 net: make Ban/Unban/ClearBan functionality consistent (Cory Fields)
cca221f net: Drop CNodeRef for AttemptToEvictConnection (Cory Fields)
563f375 net: use the exposed GetNodeSignals() rather than g_signals directly (Cory Fields)
9faa490 net: remove unused set (Cory Fields)
52cbce2 net: don't import std namespace (Cory Fields)
- Ban/Unban/ClearBan call uiInterface.BannedListChanged() as necessary
- Ban/Unban/ClearBan sync to disk if the operation is user-invoked
- Mark node for disconnection automatically when banning
- Lock cs_vNodes while setting disconnected
- Don't spin in a tight loop while setting disconnected
Change the few occurrences of the deprecated `auto_ptr` to c++11 `unique_ptr`.
Silences the deprecation warnings.
Also add a missing `std::` for consistency.
The key (transaction id for the following outputs) should be serialized
to the HashWriter.
This is a problem as it means different transactions in the same
position with the same outputs will potentially result in the same hash.
Fixes primary concern of #7758.
Add a method Cursor() to CCoinsView that returns a cursor which can be
used to iterate over the whole UTXO set.
- rpc: Change gettxoutsetinfo to use new Cursor method
- txdb: Remove GetStats method - Now that GetStats is implemented in
terms of Cursor, remove it.
