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logging: fix endless loop on EOF

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On EOF condition we always have POLLHUP event and read returns
0 thus we never break loop in virLogHandlerDomainLogFileDrain.

Signed-off-by: Nikolay Shirokovskiy <nshirokovskiy@virtuozzo.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
This commit is contained in:
Nikolay Shirokovskiy 2020-09-24 15:54:24 +03:00
parent 7c0e1a8631
commit bde9e2c6c0
1 changed files with 2 additions and 0 deletions
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2
src/logging/log_handler.c
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@ -461,6 +461,8 @@ virLogHandlerDomainLogFileDrain(virLogHandlerLogFilePtr file)
if (errno == EINTR) if (errno == EINTR)
continue; continue;
return; return;
} else if (len == 0) {
return;
} }
if (virRotatingFileWriterAppend(file->file, buf, len) != len) if (virRotatingFileWriterAppend(file->file, buf, len) != len)