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vfs/pipe: use local signal handling

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This commit improves the performance of the pipe plugin by using local
signal handling and avoiding sending a signal during write when pipe
buffer is full.

Issue #3583
This commit is contained in:
Sid Hussmann
2021-02-19 16:54:58 +01:00
committed by Norman Feske
parent 90d9470dfd
commit 6e8728f2d3
1 changed files with 2 additions and 3 deletions
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5
repos/gems/src/lib/vfs/pipe/plugin.cc
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@@ -128,12 +128,12 @@ struct Vfs_pipe::Pipe
void submit_read_signal()
{
Genode::Signal_transmitter(_read_notify_handler).submit();
_read_notify_handler.local_submit();
}
void submit_write_signal()
{
Genode::Signal_transmitter(_write_notify_handler).submit();
_write_notify_handler.local_submit();
}
/**
@@ -212,7 +212,6 @@ struct Vfs_pipe::Pipe
bool notify = buffer.empty();
if (buffer.avail_capacity() == 0) {
submit_read_signal();
out_count = 0;
return Write_result::WRITE_OK;
}