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QLockFile: Disable flock() on QNX

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It appears it's not implemented.

[ChangeLog][QtCore][QLockFile] Suppressed the warning on QNX that said
'setNativeLocks failed: "Function not implemented"'. There is no
difference in behavior: Qt will continue not to be able to apply an OS-
level file lock, which means the lock could be accidentally stolen by
buggy software. Correct software using QLockFile should not be affected.

Fixes: QTBUG-81701
Change-Id: If79a52e476594446baccfffd15ee35bbac6c6e47
Reviewed-by: David Faure <david.faure@kdab.com>
This commit is contained in:
Thiago Macieira 2020-01-28 16:59:59 -08:00
parent 3041393d2e
commit 9ede07613d
1 changed files with 2 additions and 1 deletions
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3
src/corelib/io/qlockfile_unix.cpp
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@ -58,7 +58,8 @@
#include <sys/file.h> // flock
#endif
#if defined(Q_OS_RTEMS)
#if defined(Q_OS_RTEMS) || defined(Q_OS_QNX)
// flock() does not work in these OSes and produce warnings when we try to use
# undef LOCK_EX
# undef LOCK_NB
#endif