Commit Graph

11 Commits

Author SHA1 Message Date
MarcoFalke
f9aa9ad39f
Merge #13247: Add tests to SingleThreadedSchedulerClient() and document the memory model
cbeaa91dbb Update ValidationInterface() documentation to explicitly specify threading and memory model (Jesse Cohen)
b296b425a7 Update documentation for SingleThreadedSchedulerClient() to specify the memory model (Jesse Cohen)
9994d01d8b Add Unit Test for SingleThreadedSchedulerClient (Jesse Cohen)

Pull request description:

  As discussed in #13023 I've split this test out into a separate pr

  This test (and documentation update) makes explicit the guarantee (previously undefined, but implied by the 'SingleThreaded' in `SingleThreadedSchedulerClient()`) - that callbacks pushed to the `SingleThreadedSchedulerClient()` obey the single threaded model for memory and execution - specifically, the callbacks are executed fully and in order, and even in cases where a subsequent callback is executed by a different thread, sequential consistency of memory for all threads executing these callbacks is maintained.

  Maintaining memory consistency should make the api more developer friendly - especially for users of the validationinterface. To the extent that there are performance implications from this decision, these are not currently present in practice because all use of this scheduler happens on a single thread currently, furthermore the lock should guarantee consistency across callback executions even when callbacks are executed by multiple threads (as the test does).

Tree-SHA512: 5d95a7682c402e5ad76b05bc9dfbca99ca64105f62ab9e78f6fc0f6ea8c5277aa399fbb94298e35cc677b0c2181ff17259584bb7ae230e38aa68b85ecbc22856
2020-07-17 15:45:43 -05:00
MarcoFalke
5dba2292ac Merge #13125: scheduler: Add Clang thread safety annotations for variables guarded by m_cs_callbacks_pending
244f4baf0f scheduler: Add Clang thread safety annotations for variables guarded by m_cs_callbacks_pending (practicalswift)

Pull request description:

  Add Clang thread safety annotations for variables guarded by `m_cs_callbacks_pending`.

Tree-SHA512: 5c4aa14d1918ff119f945084820f7c1c5618e2a38d8bea8ebbfa6acddbccdacfea81fa61f1f796f8b1fcf57f5e3112da63b9bd0fa97fc9a9ef427fc361945e02
2020-07-01 14:08:47 -05:00
Pieter Wuille
871b8585ca Merge #11824: Block ActivateBestChain to empty validationinterface queue
97d2b09c12 Add helper to wait for validation interface queue to catch up (Matt Corallo)
36137497f1 Block ActivateBestChain to empty validationinterface queue (Matt Corallo)
5a933cefcc Add an interface to get the queue depth out of CValidationInterface (Matt Corallo)
a99b76f269 Require no cs_main lock for ProcessNewBlock/ActivateBestChain (Matt Corallo)
a734896038 Avoid cs_main in net_processing ActivateBestChain calls (Matt Corallo)
66aa1d58a1 Refactor ProcessGetData in anticipation of avoiding cs_main for ABC (Matt Corallo)
818075adac Create new mutex for orphans, no cs_main in PLV::BlockConnected (Matt Corallo)

Pull request description:

  This should fix #11822.

  It ended up bigger than I hoped for, but its not too gnarly. Note that "
  Require no cs_main lock for ProcessNewBlock/ActivateBestChain" is mostly pure code-movement.

Tree-SHA512: 1127688545926f6099449dca6a4e6609eefc3abbd72f1c66e03d32bd8c7b31e82097d8307822cfd1dec0321703579cfdd82069cab6e17b1024e75eac694122cb
2020-03-24 17:21:59 +03:00
PastaPastaPasta
8a1ec935a0
Backport 11651 (#3358)
* scripted-diff: Replace #include "" with #include <> (ryanofsky)

-BEGIN VERIFY SCRIPT-
for f in \
  src/*.cpp \
  src/*.h \
  src/bench/*.cpp \
  src/bench/*.h \
  src/compat/*.cpp \
  src/compat/*.h \
  src/consensus/*.cpp \
  src/consensus/*.h \
  src/crypto/*.cpp \
  src/crypto/*.h \
  src/crypto/ctaes/*.h \
  src/policy/*.cpp \
  src/policy/*.h \
  src/primitives/*.cpp \
  src/primitives/*.h \
  src/qt/*.cpp \
  src/qt/*.h \
  src/qt/test/*.cpp \
  src/qt/test/*.h \
  src/rpc/*.cpp \
  src/rpc/*.h \
  src/script/*.cpp \
  src/script/*.h \
  src/support/*.cpp \
  src/support/*.h \
  src/support/allocators/*.h \
  src/test/*.cpp \
  src/test/*.h \
  src/wallet/*.cpp \
  src/wallet/*.h \
  src/wallet/test/*.cpp \
  src/wallet/test/*.h \
  src/zmq/*.cpp \
  src/zmq/*.h
do
  base=${f%/*}/ relbase=${base#src/} sed -i "s:#include \"\(.*\)\"\(.*\):if test -e \$base'\\1'; then echo \"#include <\"\$relbase\"\\1>\\2\"; else echo \"#include <\\1>\\2\"; fi:e" $f
done
-END VERIFY SCRIPT-

Signed-off-by: Pasta <pasta@dashboost.org>

* scripted-diff: Replace #include "" with #include <> (Dash Specific)

-BEGIN VERIFY SCRIPT-
for f in \
  src/bls/*.cpp \
  src/bls/*.h \
  src/evo/*.cpp \
  src/evo/*.h \
  src/governance/*.cpp \
  src/governance/*.h \
  src/llmq/*.cpp \
  src/llmq/*.h \
  src/masternode/*.cpp \
  src/masternode/*.h \
  src/privatesend/*.cpp \
  src/privatesend/*.h
do
  base=${f%/*}/ relbase=${base#src/} sed -i "s:#include \"\(.*\)\"\(.*\):if test -e \$base'\\1'; then echo \"#include <\"\$relbase\"\\1>\\2\"; else echo \"#include <\\1>\\2\"; fi:e" $f
done
-END VERIFY SCRIPT-

Signed-off-by: Pasta <pasta@dashboost.org>

* build: Remove -I for everything but project root

Remove -I from build system for everything but the project root,
and built-in dependencies.

Signed-off-by: Pasta <pasta@dashboost.org>

# Conflicts:
#	src/Makefile.test.include

* qt: refactor: Use absolute include paths in .ui files

* qt: refactor: Changes to make include paths absolute

This makes all include paths in the GUI absolute.

Many changes are involved as every single source file in
src/qt/ assumes to be able to use relative includes.

Signed-off-by: Pasta <pasta@dashboost.org>

# Conflicts:
#	src/qt/dash.cpp
#	src/qt/optionsmodel.cpp
#	src/qt/test/rpcnestedtests.cpp

* test: refactor: Use absolute include paths for test data files

* Recommend #include<> syntax in developer notes

* refactor: Include obj/build.h instead of build.h

* END BACKPORT #11651 Remove trailing whitespace causing travis failure

* fix backport 11651

Signed-off-by: Pasta <pasta@dashboost.org>

* More of 11651

* fix blockchain.cpp

Signed-off-by: pasta <pasta@dashboost.org>

* Add missing "qt/" in includes

* Add missing "test/" in includes

* Fix trailing whitespaces

Co-authored-by: Wladimir J. van der Laan <laanwj@gmail.com>
Co-authored-by: Russell Yanofsky <russ@yanofsky.org>
Co-authored-by: MeshCollider <dobsonsa68@gmail.com>
Co-authored-by: UdjinM6 <UdjinM6@users.noreply.github.com>
2020-03-20 01:46:56 +03:00
Wladimir J. van der Laan
fdf3f25a0a
Merge #10969: Declare single-argument (non-converting) constructors "explicit"
64fb0ac Declare single-argument (non-converting) constructors "explicit" (practicalswift)

Pull request description:

  Declare single-argument (non-converting) constructors `explicit`.

  In order to avoid unintended implicit conversions.

  For a more thorough discussion, see ["C.46: By default, declare single-argument constructors explicit"](http://isocpp.github.io/CppCoreGuidelines/CppCoreGuidelines#c46-by-default-declare-single-argument-constructors-explicit) in the C++ Core Guidelines (Stroustrup & Sutter).

Tree-SHA512: e0c6922e56b11fa402621a38656d8b1122d16dd8f160e78626385373cf184ac7f26cb4c1851eca47e9b0dbd5e924e39a85c3cbdcb627a05ee3a655ecf5f7a0f1
2020-01-10 10:33:57 -06:00
MarcoFalke
8302bd5479 Merge #9964: Add const to methods that do not modify the object for which it is called
6e8c48dc5 Add const to methods that do not modify the object for which it is called (practicalswift)

Pull request description:

Tree-SHA512: a6888111ba16fb796e320e60806e1a77d36f545989b5405dc7319992291800109eab0b8e8c286b784778f41f1ff5289e7cb6b4afd7aec77f385fbcafc02cffc1
2020-01-02 16:16:55 -06:00
Wladimir J. van der Laan
40617436c6 Merge #10179: Give CValidationInterface Support for calling notifications on the CScheduler Thread
1f668b6 Expose if CScheduler is being serviced, assert its not in EmptyQueue (Matt Corallo)
3192975 Flush CValidationInterface callbacks prior to destruction (Matt Corallo)
08096bb Support more than one CScheduler thread for serial clients (Matt Corallo)
2fbf2db Add default arg to CScheduler to schedule() a callback now (Matt Corallo)
cda1429 Give CMainSignals a reference to the global scheduler (Matt Corallo)
3a19fed Make ValidationInterface signals-type-agnostic (Matt Corallo)
ff6a834 Use TestingSetup to DRY qt rpcnestedtests (Matt Corallo)

Tree-SHA512: fab91e34e30b080ed4d0a6d8c1214910e383c45440676e37be61d0bde6ae98d61e8903d22b846e95ba4e73a6ce788798350266feba246d8a2ab357e8523e4ac5
2019-09-07 12:33:13 -05:00
Pieter Wuille
2e050ea744
Merge #10395: Replace boost::function with std::function (C++11)
1b936f5 Replace boost::function with std::function (C++11) (practicalswift)

Tree-SHA512: c4faec8cf3f801842010976115681f68ffa08fbc97ba50b22e95c936840f47e1b3bd8d7fd2f5b4e094b5a46bf3d29fc90b69d975a99e77322c0d19f8a00d53d3
2019-06-24 11:39:34 -05:00
Wladimir J. van der Laan
8d249d4dff Merge #9605: Use CScheduler for wallet flushing, remove ThreadFlushWalletDB
0235be1 Rename FlushWalletDB -> CompactWalletDB, add function description (Matt Corallo)
735d9b5 Use CScheduler for wallet flushing, remove ThreadFlushWalletDB (Matt Corallo)
73296f5 CScheduler boost->std::function, use millisecs for times, not secs (Matt Corallo)

Tree-SHA512: c04f97beab65706c444c126be229d02887df9b0972d8fb15ca1f779ef0e628cf7ecef2bf533c650d9b44645b63e01de22f17266a05907e778938d64cc6e19de6
2019-02-04 19:58:19 -06:00
Gavin Andresen
f50105486f
More robust CScheduler unit test
On a busy or slow system, the CScheduler unit test could fail because it
assumed all threads would be done after a couple of milliseconds.

Replace the hard-coded sleep with CScheduler stop() method that
will cleanly exit the servicing threads when all tasks are completely
finished.
2015-05-16 17:59:23 -04:00
Gavin Andresen
928b950e3b
CScheduler class for lightweight task scheduling
Simple class to manage a task queue that is serviced by one or
more threads.
2015-05-14 10:37:19 -04:00