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Bockchain:
1. Optim: Multi-thread long-hash computation when encountering groups of blocks.
2. Optim: Cache verified txs and return result from cache instead of re-checking whenever possible.
3. Optim: Preload output-keys when encoutering groups of blocks. Sort by amount and global-index before bulk querying database and multi-thread when possible.
4. Optim: Disable double spend check on block verification, double spend is already detected when trying to add blocks.
5. Optim: Multi-thread signature computation whenever possible.
6. Patch: Disable locking (recursive mutex) on called functions from check_tx_inputs which causes slowdowns (only seems to happen on ubuntu/VMs??? Reason: TBD)
7. Optim: Removed looped full-tx hash computation when retrieving transactions from pool (???).
8. Optim: Cache difficulty/timestamps (735 blocks) for next-difficulty calculations so that only 2 db reads per new block is needed when a new block arrives (instead of 1470 reads).
Berkeley-DB:
1. Fix: 32-bit data errors causing wrong output global indices and failure to send blocks to peers (etc).
2. Fix: Unable to pop blocks on reorganize due to transaction errors.
3. Patch: Large number of transaction aborts when running multi-threaded bulk queries.
4. Patch: Insufficient locks error when running full sync.
5. Patch: Incorrect db stats when returning from an immediate exit from "pop block" operation.
6. Optim: Add bulk queries to get output global indices.
7. Optim: Modified output_keys table to store public_key+unlock_time+height for single transaction lookup (vs 3)
8. Optim: Used output_keys table retrieve public_keys instead of going through output_amounts->output_txs+output_indices->txs->output:public_key
9. Optim: Added thread-safe buffers used when multi-threading bulk queries.
10. Optim: Added support for nosync/write_nosync options for improved performance (*see --db-sync-mode option for details)
11. Mod: Added checkpoint thread and auto-remove-logs option.
12. *Now usable on 32-bit systems like RPI2.
LMDB:
1. Optim: Added custom comparison for 256-bit key tables (minor speed-up, TBD: get actual effect)
2. Optim: Modified output_keys table to store public_key+unlock_time+height for single transaction lookup (vs 3)
3. Optim: Used output_keys table retrieve public_keys instead of going through output_amounts->output_txs+output_indices->txs->output:public_key
4. Optim: Added support for sync/writemap options for improved performance (*see --db-sync-mode option for details)
5. Mod: Auto resize to +1GB instead of multiplier x1.5
ETC:
1. Minor optimizations for slow-hash for ARM (RPI2). Incomplete.
2. Fix: 32-bit saturation bug when computing next difficulty on large blocks.
[PENDING ISSUES]
1. Berkely db has a very slow "pop-block" operation. This is very noticeable on the RPI2 as it sometimes takes > 10 MINUTES to pop a block during reorganization.
This does not happen very often however, most reorgs seem to take a few seconds but it possibly depends on the number of outputs present. TBD.
2. Berkeley db, possible bug "unable to allocate memory". TBD.
[NEW OPTIONS] (*Currently all enabled for testing purposes)
1. --fast-block-sync arg=[0:1] (default: 1)
a. 0 = Compute long hash per block (may take a while depending on CPU)
b. 1 = Skip long-hash and verify blocks based on embedded known good block hashes (faster, minimal CPU dependence)
2. --db-sync-mode arg=[[safe|fast|fastest]:[sync|async]:[nblocks_per_sync]] (default: fastest:async:1000)
a. safe = fdatasync/fsync (or equivalent) per stored block. Very slow, but safest option to protect against power-out/crash conditions.
b. fast/fastest = Enables asynchronous fdatasync/fsync (or equivalent). Useful for battery operated devices or STABLE systems with UPS and/or systems with battery backed write cache/solid state cache.
Fast - Write meta-data but defer data flush.
Fastest - Defer meta-data and data flush.
Sync - Flush data after nblocks_per_sync and wait.
Async - Flush data after nblocks_per_sync but do not wait for the operation to finish.
3. --prep-blocks-threads arg=[n] (default: 4 or system max threads, whichever is lower)
Max number of threads to use when computing long-hash in groups.
4. --show-time-stats arg=[0:1] (default: 1)
Show benchmark related time stats.
5. --db-auto-remove-logs arg=[0:1] (default: 1)
For berkeley-db only. Auto remove logs if enabled.
**Note: lmdb and berkeley-db have changes to the tables and are not compatible with official git head version.
At the moment, you need a full resync to use this optimized version.
[PERFORMANCE COMPARISON]
**Some figures are approximations only.
Using a baseline machine of an i7-2600K+SSD+(with full pow computation):
1. The optimized lmdb/blockhain core can process blocks up to 585K for ~1.25 hours + download time, so it usually takes 2.5 hours to sync the full chain.
2. The current head with memory can process blocks up to 585K for ~4.2 hours + download time, so it usually takes 5.5 hours to sync the full chain.
3. The current head with lmdb can process blocks up to 585K for ~32 hours + download time and usually takes 36 hours to sync the full chain.
Averate procesing times (with full pow computation):
lmdb-optimized:
1. tx_ave = 2.5 ms / tx
2. block_ave = 5.87 ms / block
memory-official-repo:
1. tx_ave = 8.85 ms / tx
2. block_ave = 19.68 ms / block
lmdb-official-repo (0f4a036437fd41a5498ee5e74e2422ea6177aa3e)
1. tx_ave = 47.8 ms / tx
2. block_ave = 64.2 ms / block
**Note: The following data denotes processing times only (does not include p2p download time)
lmdb-optimized processing times (with full pow computation):
1. Desktop, Quad-core / 8-threads 2600k (8Mb) - 1.25 hours processing time (--db-sync-mode=fastest:async:1000).
2. Laptop, Dual-core / 4-threads U4200 (3Mb) - 4.90 hours processing time (--db-sync-mode=fastest:async:1000).
3. Embedded, Quad-core / 4-threads Z3735F (2x1Mb) - 12.0 hours processing time (--db-sync-mode=fastest:async:1000).
lmdb-optimized processing times (with per-block-checkpoint)
1. Desktop, Quad-core / 8-threads 2600k (8Mb) - 10 minutes processing time (--db-sync-mode=fastest:async:1000).
berkeley-db optimized processing times (with full pow computation)
1. Desktop, Quad-core / 8-threads 2600k (8Mb) - 1.8 hours processing time (--db-sync-mode=fastest:async:1000).
2. RPI2. Improved from estimated 3 months(???) into 2.5 days (*Need 2AMP supply + Clock:1Ghz + [usb+ssd] to achieve this speed) (--db-sync-mode=fastest:async:1000).
berkeley-db optimized processing times (with per-block-checkpoint)
1. RPI2. 12-15 hours (*Need 2AMP supply + Clock:1Ghz + [usb+ssd] to achieve this speed) (--db-sync-mode=fastest:async:1000).
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Fix compilation error
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to lock up.
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bbc5475 Fix DNS checkpoint consensus code (moneromooo-monero)
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It's supposed to load all records and pick one that it finds twice.
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c882af6 wallet: add watch only wallet support (moneromooo-monero)
f7767c6 account: add a forget_spend_key method (moneromooo-monero)
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Add public method blockchain_storage::debug_pop_block_from_blockchain()
Ensure blockchain_import calls destructors before exit.
To test:
DATABASE=memory make release
// create blockchain.bin from blockchain.raw if needed
build/release/bin/blockchain_import --block-stop 1000
// try popping a single block
build/release/bin/blockchain_import --pop-blocks 1
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ac011b4 Rename src/blockchain_converter/ to src/blockchain_utilities/ (warptangent)
ed9c639 Add --block-number option to blockchain_import (warptangent)
1eb4c66 Update blockchain utilities with portable bootstrap file format (warptangent)
54bd9c1 Add MDB_NORDAHEAD as a supported LMDB flag for blockchain_import (warptangent)
a52496d Condense #if directives (warptangent)
8c1a188 Add basic "pop blocks" command to blockchain_import for debugging (warptangent)
71af046 Update log statements (warptangent)
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Use filesystem path conversion to string() instead of c_str().
Windows may otherwise output an address.
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641d824 Keep memory pool consistent when stuck tx removed (warptangent)
b76857f Add mempool output to daemon via command and RPC (warptangent)
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When a stuck tx is removed from memory pool, first remove the associated
spent key images.
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This is for the "print_pool" command and "get_transaction_pool" RPC
method.
Add mempool's spent key images to the results.
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Only one thread will be doing the updating.
Two valid responses must match, and the first two that match will be
used.
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e6740ee Enforce DNSSEC for checkpoint updates (Thomas Winget)
dbf46a7 DNSSEC added (hardcoded key) (Thomas Winget)
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b43716c Do store transaction's blob size in transaction_chain_entry (Sergey Kazenyuk)
3be518f Use single get_transaction_hash to get both id and blob size (Sergey Kazenyuk)
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There will need to be some more refactoring for these changes to be
considered complete/correct, but for now it's working.
new daemon cli argument "--db-type", works for LMDB and BerkeleyDB.
A good deal of refactoring is also present in this commit, namely
Blockchain no longer instantiates BlockchainDB, but rather is passed a
pointer to an already-instantiated BlockchainDB on init().
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Preparation for PR
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Where this method is used, a BlockchainDB object is always expected, so
a pointer is unnecessary and less safe.
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Add support to:
- BlockchainDB, BlockchainLMDB
- blockchain_import utility to open LMDB database with one or more
LMDB flags.
Sample use:
$ blockchain_import --database lmdb#nosync
$ blockchain_import --database lmdb#nosync,nometasync
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This handling may be changed in the future.
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In order to make things more general, BlockchainDB now has get_db_name()
which should return a string with the "name" of that type of db.
This "name" will be the subfolder name that holds that db type's files
within the monero folder.
Small bugfix: blockchain_converter was not correctly appending this in
the prior hard-coded-string implementation of the subfolder data
directory concept.
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Ostensibly janitorial work, but should be more relevant later down the
line. Things that depend on core cryptonote things (i.e.
cryptonote_core) don't necessarily depend on BlockchainDB and thus
have no need to have BlockchainDB baked in with them.
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The RPC calls the daemon executable uses to talk to the running daemon
instance have mostly been added back in. Rate limiting has not been
added in upstream, but is on its way in a separate effort, so those
calls are still NOPed out.
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many RPC functions added by the daemonize changes
(and related changes on the upstream dev branch that were not merged)
were commented out (apart from return). Other than that, this *should*
work...at any rate, it builds, and that's something.
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BlockchainLMDB::add_block()
BlockchainLMDB::add_transaction_data()
BlockchainDB::add_transaction()
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of height
This reflects the behavior of blockchain_storage::get_tail_id().
Fixes #27 so that RPC method getlastblockheader works.
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This reverts commit 6f1c4b4c2c78c930fe30ed648e855a6ce55f7dcd.
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new update of the pr with network limits
more debug options:
discarding downloaded blocks all or after given height.
trying to trigger the locking errors.
debug levels polished/tuned to sane values.
debug/logging improved.
warning: this pr should be correct code, but it could make
an existing (in master version) locking error appear more often.
it's a race on the list (map) of peers, e.g. between closing/deleting
them versus working on them in net-limit sleep in sending chunk.
the bug is not in this code/this pr, but in the master version.
the locking problem of master will be fixed in other pr.
problem is ub, and in practice is seems to usually cause program abort
(tested on debian stable with updated gcc). see --help for option
to add sleep to trigger the error faster.
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Update of the PR with network limits
works very well for all speeds
(but remember that low download speed can stop upload
because we then slow down downloading of blockchain
requests too)
more debug options
fixed pedantic warnings in our code
should work again on Mac OS X and FreeBSD
fixed warning about size_t
tested on Debian, Ubuntu, Windows(testing now)
TCP options and ToS (QoS) flag
FIXED peer number limit
FIXED some spikes in ingress/download
FIXED problems when other up and down limit
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commands and options for network limiting
works very well e.g. for 50 KiB/sec up and down
ToS (QoS) flag
peer number limit
TODO some spikes in ingress/download
TODO problems when other up and down limit
added "otshell utils" - simple logging (with colors, text files channels)
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Usage:
default is lmdb for blockchain branch:
$ make release
same as:
$ DATABASE=lmdb make release
for original in-memory implementation:
$ DATABASE=memory make release
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See commit 4ba680f2946966df2030e5765e40ee0a36b112c4
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See commit cf5a8b1d6c3df615641e81328bb3d8cf80cd70e3
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Update to match LOG_PRINT_RED_Lx statements.
See commit cf5a8b1d6c3df615641e81328bb3d8cf80cd70e3
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get_tx_outputs_gindexs()
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This would have been triggered if function was called without fourth
parameter and ring signature check failed.
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It expects the total number of blocks of main chain, not last block id
(off-by-one error).
This again behaves like the same height assertion done in original
implementation in blockchain_storage::handle_alternative_block().
This allows a reorganization to proceed after an alternative block has
been added.
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difficulty.
This fixes the continual reorganization between a main and alternate
chain, using the same two latest blocks from each.
The check that cumulative difficulty of the alternate chain is bigger
than main's was not using main's last block, but incorrectly using the
passed-in block's previous block. main_chain_cumulative_difficulty was
being used in two different ways. This has been split up to keep use
of main_chain_cumulative_difficulty consistent.
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Remove have_block() check from Blockchain::handle_block_to_main_chain().
Add logging to have_block().
This allows blockchain reorganization to proceed further.
have_block() check here causes an error after a blockchain reorganize
begins with error: "Attempting to add block to main chain, but it's
already either there or in an alternate chain."
While reorganizing to become the main chain, a block in the
alternative chain would be refused due to have_block() rightfully
finding it in the alternative chain. The reorganization would end in
rollback, restoring to previous blockchain.
Original implementation didn't call it here, and it doesn't appear
necessary to be called from here in this implementation either. When
needed, it appears it's called prior to handle_block_to_main_chain().
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Complete method BlockchainLMDB::remove_output()
- use output index as the key for:
m_output_indices, m_output_txs, m_output_keys
- call new method BlockchainLMDB::remove_amount_output_index()
Add method to remove amount output index.
- BlockchainLMDB::remove_amount_output_index()
- for m_output_amounts
This also fixes the segfault when blockchain reorganization is
attempted.
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Use last block id, not number of blocks (off-by-one error).
Fixes error at start of blockchain reorganization: "Attempt to get
cumulative difficulty from height <XXXXXX> failed -- difficulty not in
db"
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Implement BlockchainLMDB::get_output_global_index()
- returns global output index for a given amount and amount output
index.
Add information to debug statement for failed ring signature check
within Blockchain::check_tx_inputs()
Fixes bitmonerod RPC call "/getrandom_outs.bin" to return correct
output keys, used in creating a transaction with mixins.
TODO: get_output_global_index() could be refactored with part of
get_output_tx_and_index() as the latter uses the former's
functionality. Keep track of LMDB read transaction.
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Fix Blockchain::get_tx_outputs_gindexs() to return amount output
indices.
Implement BlockchainLMDB::get_tx_amount_output_indices() and call it
from the function instead of BlockchainLMDB::get_tx_output_indices()
Previously, Blockchain::get_tx_outputs_gindexs() was instead returning
global output indices, which are internal to LMDB databases.
Allows bitmonerod RPC /get_o_indexes.bin to return the amount output
indices as expected.
Allows simplewallet refresh to set correct amount output indices for
incoming transfers. simplewallet can now construct and send valid
transactions (currently only without mixins).
This is a fix that doesn't require altering the structure of the
current LMDB databases.
TODO:
This can be done more efficiently by adding another LMDB database
(key-value table).
It's not used during regular transaction validation by bitmonerod. I
think it's currently used only or mainly by simplewallet for just its
own incoming transactions. So the current behavior is not a primary
bottleneck.
Currently, it's using the "output_amounts" database, walking through a
given amount's list of values, comparing each one to a given global
output index. The iteration number of the match is the desired result:
the amount output index. This is done for each global output index of
the transaction.
A tx's amount output indices can be stored in various other ways
allowing for faster lookup. Since a tx is only written once, there are
no special future write requirements for its list of indices.
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As it is useful for functions calling BlockchainDB functions to know
whether an exception is expected (attempting to get a block that doesn't
exist and counting it missing if not, to save time checking if it
does, for example), the inline functions throw{0,1} need to keep the
exception type information.
Slight comment update due to copy/paste failure.
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This commit should fix the segfault in
Blockchain::handle_alternative_block, and also updates a few comments
that were either incorrect or incomplete.
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Obtain tx hash and tx output index from amount and output offset
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Fixes problem of obtaining incorrect outputs used for tx input.
Reverts to earlier intended behavior that was fixed in previous
commit's split of get_output_tx_and_index into two functions.
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This finally fixes raw tx being accepted by the daemon.
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Thanks to moneromooo-monero for spotting the bug.
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It would probably have thrown when not finding a block at
height 2^64-1, but better make things clear.
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It makes the code simpler, avoids possible copy/paste errors
(wrong sizeof, etc), and generally unclutters the calling code.
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It is already there (unless overridden via command line).
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When the wallet syncs from the first block, it is fine to start
at the genesis block.
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The existing assert is kept as it is stricter than the function's
internal assert.
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Ideally, the log would go in the exception's ctor, but
two log levels are used, so I'd need to specify the level
in the ctor, which isn't great as it's not really related
to the exception.
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update for rebase (warptangent 2015-01-04)
src/cryptonote_core/CMakeLists.txt (edit)
- replace LMDB_LIBRARIES with LMDB_LIBRARY set from autodetection
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credit here:
https://bitcointalk.org/index.php?topic=583449.msg9562845#msg9562845
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hard-coded config folder, hard-coded BlockchainDB subclass.
Needs finessing, but should be testable this way.
update for rebase (warptangent 2015-01-04)
fix conflicts with upstream CMakeLists.txt files
src/CMakeLists.txt (edit original commit)
src/blockchain_converter/CMakeLists.txt (add)
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Minor bugfixes in block removal
Storing outputs outside their transactions is largely unnecessary, and
thus has been removed.
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* - Well, mostly. Haven't let it sync too far just yet. Currently
trying to figure out the best way to deal with LMDB/mmap virtual memory
pages.
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There are quite a few debug prints in this commit that will need removed
later, but for posterity (in case someone wants to debug this while I'm
away), I left them in.
Currently errors when syncing on the first block that has a "real"
transaction. Seems to not be able to validate the ring signature, but I
can't for the life of me figure out what's going wrong.
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Blockchain and BlockchainLMDB classes now have a debug print at the
beginning of each function at log level 2. These can be removed at any
time, but for now are quite useful.
Blockchain runs, and adds the genesis block just fine, but for some
reason isn't getting new blocks.
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Probably needs more looking at -- lot of things were done...in a rushed
sort of way. That said, it all builds and *should* be at least
testable.
update for rebase (warptangent 2015-01-04)
fix conflicts with upstream CMakeLists.txt files
src/CMakeLists.txt (remove edits from original commit)
tests/CMakeLists.txt (remove edits from original commit)
src/cryptonote_core/CMakeLists.txt (edit)
- use blockchain db .cpp and .h files
- add LMDB_LIBRARIES
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All of the functionality for the LMDB implementation of BlockchainDB is
implemented, but only what is in tests/unit_tests/BlockchainDB.cpp has
been tested. This is basically add a block, see if you can get the
block and a tx from the block. More tests should be added at some
point.
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Still needs testing (and need to write a few more unit tests), but
everything should be there. Lots of unfortunate duplication,
but...well, I can't see a way around it using LMDB.
A couple of other minor changes in this commit, only slightly relevant.
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The rest should just be tedious copypasta and modification.
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miscellaneous changes to BlockchainDB/blockchain as well, namely
replacing instances of std::list with std::vector
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Still need to add in the new checkpointing functionality, as well as
touch up a few things, but is okay for now.
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tried rebasing, tree-filter, and many other things. at this point,
the history of these files previous to this can live on
in my bc2 branch, as I'm importing them as-is to here.
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pre-sc_reduce32 version of it
- for deriving view secret key
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dde7897 Disable legacy fees for now (iamsmooth)
cc74b43 Remove DEFAULT_FEE, add temporary acceptance of too-small per-kb fee >= 0.1, denominations based on DEFAULT_DUST_THRESHOLD, document fee arg to create_transactions as unused, se DEFAULT_DUST_THRESHOLD for wallet dust collection instead of calcualted tx fee (iamsmooth)
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ce71c01 cmake: work around a bug with implicit link directories (Ben Boeckel)
de4fc40 mingw: copy required libraries to the build tree (Ben Boeckel)
ec54e2f cmake: place binaries together in the build tree (Ben Boeckel)
18c56ab msys: don't use LTO (Ben Boeckel)
5680c9c msys: factor out -Werror on msys (Ben Boeckel)
4751542 msys: look in msys' directory for files (Ben Boeckel)
d855fe4 miniupnpc: bump the _POSIX_C_SOURCE feature macro (Ben Boeckel)
c696492 unbound: fix getaddrinfo detection for 32-bit windows (Ben Boeckel)
e377687 cmake: Windows and static builds need this (Ben Boeckel)
01895dd cmake: fix up link lines (Ben Boeckel)
4b6515c unbound: fix type checking (Ben Boeckel)
d43a20f unbound: plumb the libdir up (Ben Boeckel)
7d708e4 cmake: support 2.8.7 (Ben Boeckel)
464c280 cmake: fix up miniupnpc's define (Ben Boeckel)
9689df9 cmake: clean up EXTRA_LIBRARIES (Ben Boeckel)
3b7bdcb cmake: set the project name (Ben Boeckel)
0f0efc4 cmake: prepend to CMAKE_MODULE_PATH (Ben Boeckel)
031e3da cmake: remove scream-make (all-caps functions) (Ben Boeckel)
abbd5c0 unbound: import cmake build system (Ben Boeckel)
e59b5b7 miniupnpc: clean up build system (Ben Boeckel)
475fe20 cmake: minor cleanups (indentation and typos) (Ben Boeckel)
799e8b2 cmake: use option() for STATIC (Ben Boeckel)
c24d22b cmake: clean up if auto-dereferencing (Ben Boeckel)
9ed415a build: inform the build of what generates version.h (Ben Boeckel)
eba180a cmake: support git info in released tarballs (Ben Boeckel)
eeffac6 cmake: fix up BOOST_IGNORE_SYSTEM_PATHS (Ben Boeckel)
a43f1a8 cmake: remove configuration variables (Ben Boeckel)
a87ce09 cmake: factor out error messages (Ben Boeckel)
9aa48b6 miniupnpc: clear out else/endfoo command arguments (Ben Boeckel)
8a86ac8 daemon_tests: update cmake code (Ben Boeckel)
fa3ff75 gtest: support an external gtest (Ben Boeckel)
7bfcffa cmake: put each test executable in its own directory (Ben Boeckel)
f53f047 cmake: handle private vs. public headers (Ben Boeckel)
55ca7d3 cmake: refactor common code with libraries (Ben Boeckel)
c773f46 cmake: refactor common code with executables (Ben Boeckel)
89cff7b cmake: put each library into its own directory (Ben Boeckel)
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denominations based on DEFAULT_DUST_THRESHOLD, document fee arg to create_transactions as unused, se DEFAULT_DUST_THRESHOLD for wallet dust collection instead of calcualted tx fee
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Older versions of CMake support LINK_{PUBLIC,PRIVATE} while newer
versions prefer PUBLIC and PRIVATE instead, but still support the LINK_
prefix.
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This cleans up the CMake code and shows patterns more easily (to be
refactored in the next commit).
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aeaa44f fixed signed-unsigned issue from 166 (Thomas Winget)
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Loss of entropy can be discussed at a later time, but is
not deemed a significant issue for now.
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If the "enforce DNS checkpoints" flag is not enabled, it should not exit
if DNS checkpoints conflict with the others, but should still print a
warning to the user.
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json checkpoints will be checked every 10 minutes, dns every 60.
json checkpoints always enforced, dns still with flag.
conflicting checkpoints is hard fail, but soft if dns enforce flag not
set and dns checkpoints are wonky.
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Bounds checking on blockchain_storage' m_blocks.size() when validating
against checkpoints. Also moved initial json & DNS checkpoints load to
after blockchain init.
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The daemon should now check for updated checkpoints from
checkpoints.moneropulse.org as well as from the configured json file
every ~1hr (and on launch).
The daemon now has a flag to enable enforcing these checkpoints (rather
than just printing a warning when they fail).
TODO: an easily configurable list of DNS servers to check for
checkpoints as opposed to the hard-coded "checkpoints.moneropulse.org"
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also some other minor bug squashing and code formatting
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For checkpoints being read at runtime to work correctly, the checkpoint
add code needs to not return false if a checkpoint is added that already
exists. In this case, instead return false if the checkpoint is for a
height that already has a checkpoint and the hashes are different.
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This reverts commit 4e2b2b942daa4206ec44c66e59863670dfe3fde4.
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Source: cryptonotefoundation
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if a new block has the same block id as 202612 but the wrong blobdata,
this will tell the caller that the block id is actually null_hash rather
than the 202612 block id.
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Since we need to fix tree_hash, but doing so would invalidate the block
id for block 202612, this fix should check to see if we're trying to get
the block id for 202612 (if its blob hash matches) and return the "old"
block id, for backwards compatibility.
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Optional height parameter for wallet refresh
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tx pool fixes, courtesy of Bytecoin
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height param is used optionally in refresh command
TODO: This should also be the default behaviour
when generating a new wallet.
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This is now done when adding transactions to the pool.
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This is now done when transactions enter the pool.
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