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Make log output always line-buffered #5589

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May 5, 2019
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Make log output always line-buffered #5589

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49ccfc8
Force log output to be line-buffered (even when redirected to non-tty)
gumb0 May 2, 2019
620159a
Add changelog item
gumb0 May 2, 2019
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1 change: 1 addition & 0 deletions CHANGELOG.md
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Original file line number Diff line number Diff line change
Expand Up @@ -9,6 +9,7 @@
- Changed: [#5559](https://github.com/ethereum/aleth/pull/5559) Update peer validation error messages.
- Changed: [#5568](https://github.com/ethereum/aleth/pull/5568) Improve rlpx handshake log messages and create new rlpx log channel.
- Changed: [#5576](https://github.com/ethereum/aleth/pull/5576) Moved sstore_combinations and static_Call50000_sha256 tests to stTimeConsuming test suite. (testeth runs them only with `--all` flag)
- Changed: [#5589](https://github.com/ethereum/aleth/pull/5589) Make aleth output always line-buffered even when redirected to file or pipe.
- Fixed: [#5562](https://github.com/ethereum/aleth/pull/5562) Don't send header request messages to peers that haven't sent us Status yet.
- Fixed: [#5581](https://github.com/ethereum/aleth/pull/5581) Fixed finding neighbour nodes in Discovery.

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3 changes: 3 additions & 0 deletions libdevcore/Log.cpp
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Expand Up @@ -133,6 +133,9 @@ void setupLogging(LoggingOptions const& _options)

boost::shared_ptr<std::ostream> stream{&std::cout, boost::null_deleter{}};
sink->locked_backend()->add_stream(stream);
// Enable auto-flushing after each log record written
sink->locked_backend()->auto_flush(true);

sink->set_filter([_options](boost::log::attribute_value_set const& _set) {
if (_set[severity] > _options.verbosity)
return false;
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