Commit Graph

4 Commits (bc962256b41ebbf656a8d533397d1776c43a719e)

Author SHA1 Message Date
Marc Mutz 935e52108d QtConcurrent::IterateKernel: fix a race on a cache variable
getticks() can be called concurrently, so accessing a non-atomic static long,
even when the assignment will produce the same value in evey case, constitutes
a data race.

Fixed by making 'useThreadCpuTime' atomic.

Since atomic long's might not be supported on all platforms, use an
atomic int instead. To avoid a narrowing conversion, and since we're
not interested in the return value of sysconf(), only whether it
succeeded, convert any non-error return value to 0 prior to storing
in the atomic.

Change-Id: Ic285f7801327b30ddcd9c24bf1ccee3112a447b1
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
2013-09-26 06:31:32 +02:00
Sergio Ahumada 48e0c4df23 Update copyright year in Digia's license headers
Change-Id: Ic804938fc352291d011800d21e549c10acac66fb
Reviewed-by: Lars Knoll <lars.knoll@digia.com>
2013-01-18 09:07:35 +01:00
Iikka Eklund be15856f61 Change copyrights from Nokia to Digia
Change copyrights and license headers from Nokia to Digia

Change-Id: If1cc974286d29fd01ec6c19dd4719a67f4c3f00e
Reviewed-by: Lars Knoll <lars.knoll@digia.com>
Reviewed-by: Sergio Ahumada <sergio.ahumada@digia.com>
2012-09-22 19:20:11 +02:00
Lars Knoll 96501b0a18 Move QtConcurrent into its own module
Task-number: QTBUG-20892

Change-Id: I614500aafb6428915509983608bbb0ade4e4f016
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2012-02-05 17:49:16 +01:00