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MDEV-32387 - prevent output during temporary changes to STDOUT/STDERR

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create_process() temporarily changes STDOUT/STDERR output to error log file

This might redirect mtr output on Windows, so avoid it by holding
flush_lock.
This commit is contained in:
Vladislav Vaintroub
2024-10-28 10:45:50 +01:00
parent 284593413f
commit 4b068b7fcb
2 changed files with 5 additions and 1 deletions
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4
mysql-test/lib/My/SafeProcess/Base.pm
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@ -114,6 +114,10 @@ sub create_process {
lock($win32_spawn_lock);
# STDOUT/STDERR are temporarily reassigned, avoid prevent
# output from another thread
lock($mtr_report::flush_lock);
#printf STDERR "stdin %d, stdout %d, stderr %d\n",
# fileno STDIN, fileno STDOUT, fileno STDERR;