diff options
| author | Thiago Macieira <thiago.macieira@intel.com> | 2012-08-11 14:47:10 +0200 |
|---|---|---|
| committer | Qt by Nokia <qt-info@nokia.com> | 2012-09-14 03:45:50 +0200 |
| commit | fc174a37283306f3f5c06efeda22d5164820c164 (patch) | |
| tree | 3e96b1d780babc36425866f38fab214d51fccc1c /src/corelib/thread/qmutex.cpp | |
| parent | 30bea611df2d95b53b63273ac867d9bd0a181edf (diff) | |
Simplify the futex lock loop: no need for nested while
Once we enter the inner loop, we never exit it except to return from
the lockInternal() function, so the rest is never executed again.
As a consequence of this, we won't try to fastTryLock() twice per
mutex. Therefore, for a non-recursive mutex, if lockInternal() is
entered, we'll definitely need to use futexes.
Change-Id: Ice617ed27449c1fbdc112a159a86cd0660125e13
Reviewed-by: Lars Knoll <lars.knoll@nokia.com>
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
Diffstat (limited to 'src/corelib/thread/qmutex.cpp')
0 files changed, 0 insertions, 0 deletions