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Merge bitcoin/bitcoin#27861: kernel: Rm ShutdownRequested and AbortNode from validation code.

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6eb33bd0c2 kernel: Add fatalError method to notifications (TheCharlatan)
7320db96f8 kernel: Add flushError method to notifications (TheCharlatan)
3fa9094b92 scripted-diff: Rename FatalError to FatalErrorf (TheCharlatan)
edb55e2777 kernel: Pass interrupt reference to chainman (TheCharlatan)
e2d680a32d util: Add SignalInterrupt class and use in shutdown.cpp (TheCharlatan)

Pull request description:

  Get rid of all `ShutdownRequested` calls in validation code by introducing an interrupt object that applications can use to cancel long-running kernel operations.

  Replace all `AbortNode` calls in validation code with new fatal error and flush error notifications so kernel applications can be notified about failures and choose how to handle them.

  ---

  This pull request is part of the `libbitcoinkernel` project https://github.com/bitcoin/bitcoin/issues/27587 https://github.com/orgs/bitcoin/projects/3 and more specifically its "Step 2: Decouple most non-consensus code from libbitcoinkernel".

  The pull request mostly allows dropping the kernel dependency on shutdown.cpp. The only dependency left after this is a `StartShutdown` call which will be removed in followup PR https://github.com/bitcoin/bitcoin/pull/27711. This PR also drops the last reference to the `uiInterface` global in kernel code. The process of moving the `uiInterface` out of the kernel was started in https://github.com/bitcoin/bitcoin/pull/27636.

  This pull request contains a subset of patches originally proposed in #27711. It will be part of a series of changes required to make handling of interrupts (or in other words the current shutdown procedure) in the kernel library more transparent and less reliable on global mutable state. The set of patches contained here was originally proposed by @ryanofsky [here](https://github.com/bitcoin/bitcoin/pull/27711#issuecomment-1580779869).

ACKs for top commit:
  achow101:
    light ACK 6eb33bd0c2
  hebasto:
    ACK 6eb33bd0c2, I have reviewed the code and it looks OK.
  ryanofsky:
    Code review ACK 6eb33bd0c2. No changes since last review other than rebase.

Tree-SHA512: 7d2d05fa4805428a09466d43c11ae32946cbb25aa5e741b1eec9cd142e4de4bb311e13ebf1bb125ae490c9d08274f2d56c93314e10f3d69e7fec7445e504987c
This commit is contained in:
Ryan Ofsky
2023-07-06 17:06:55 -04:00
parent c325f0fbae 6eb33bd0c2
commit 75135c673e
31 changed files with 394 additions and 199 deletions
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2
test/lint/lint-format-strings.py
View File

@@ -16,7 +16,7 @@ import re
import sys
FUNCTION_NAMES_AND_NUMBER_OF_LEADING_ARGUMENTS = [
'FatalError,0',
'FatalErrorf,0',
'fprintf,1',
'tfm::format,1', # Assuming tfm::::format(std::ostream&, ...
'LogConnectFailure,1',

3
test/lint/run-lint-format-strings.py
View File

@@ -14,7 +14,8 @@ import sys
FALSE_POSITIVES = [
("src/dbwrapper.cpp", "vsnprintf(p, limit - p, format, backup_ap)"),
("src/index/base.cpp", "FatalError(const char* fmt, const Args&... args)"),
("src/index/base.cpp", "FatalErrorf(const char* fmt, const Args&... args)"),
("src/index/base.h", "FatalErrorf(const char* fmt, const Args&... args)"),
("src/netbase.cpp", "LogConnectFailure(bool manual_connection, const char* fmt, const Args&... args)"),
("src/clientversion.cpp", "strprintf(_(COPYRIGHT_HOLDERS).translated, COPYRIGHT_HOLDERS_SUBSTITUTION)"),
("src/test/translation_tests.cpp", "strprintf(format, arg)"),