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forked from pool/libqt5-qtbase
libqt5-qtbase/QMimeDatabase-use-QElapsedTimer.patch
Dominique Leuenberger c56a9d1b0f Accepting request 319198 from KDE:Qt5
- Added QMimeDatabase-use-QElapsedTimer.patch: reduces the number
  of syscalls greatly, by avoiding the timezone conversion every time;
  massively improves kbuildsycoca5 speed

- Fix the suse_version condition checks - treat Leap equally as 13.2
  wrt which system libs shall be used

OBS-URL: https://build.opensuse.org/request/show/319198
OBS-URL: https://build.opensuse.org/package/show/openSUSE:Factory/libqt5-qtbase?expand=0&rev=44
2015-08-02 20:45:47 +00:00

57 lines
1.9 KiB
Diff

From 3426ce9b8e62e8d76db0d9cc2899113c0c3cb073 Mon Sep 17 00:00:00 2001
From: David Faure <david.faure@kdab.com>
Date: Mon, 27 Jul 2015 00:22:11 +0200
Subject: [PATCH 1/1] QMimeDatabase: use QElapsedTimer instead of
QDateTime::currentDateTime()
This reduces the number of syscalls greatly, by avoiding the timezone
conversion every time.
Change-Id: I39a54def4b45f25c6e037ced6943b05ddc749c9d
---
src/corelib/mimetypes/qmimeprovider.cpp | 5 ++---
src/corelib/mimetypes/qmimeprovider_p.h | 3 ++-
2 files changed, 4 insertions(+), 4 deletions(-)
diff --git a/src/corelib/mimetypes/qmimeprovider.cpp b/src/corelib/mimetypes/qmimeprovider.cpp
index cca9a40b9f28e1b45a6e5e0172f512c5880a10d6..9f6bdb30981f4f236ef422cfd16f6c1cd38c643f 100644
--- a/src/corelib/mimetypes/qmimeprovider.cpp
+++ b/src/corelib/mimetypes/qmimeprovider.cpp
@@ -77,10 +77,9 @@ Q_CORE_EXPORT int qmime_secondsBetweenChecks = 5; // exported for the unit test
bool QMimeProviderBase::shouldCheck()
{
- const QDateTime now = QDateTime::currentDateTime();
- if (m_lastCheck.isValid() && m_lastCheck.secsTo(now) < qmime_secondsBetweenChecks)
+ if (m_lastCheck.isValid() && m_lastCheck.elapsed() < qmime_secondsBetweenChecks)
return false;
- m_lastCheck = now;
+ m_lastCheck.start();
return true;
}
diff --git a/src/corelib/mimetypes/qmimeprovider_p.h b/src/corelib/mimetypes/qmimeprovider_p.h
index 027fddd2c81ddb52fb3c383edfeda3a03f9ccaac..e4bc55a1a2deb5f4d030f451dd97729c2ca95bb8 100644
--- a/src/corelib/mimetypes/qmimeprovider_p.h
+++ b/src/corelib/mimetypes/qmimeprovider_p.h
@@ -48,6 +48,7 @@
#include <QtCore/qdatetime.h>
#include "qmimedatabase_p.h"
#include <QtCore/qset.h>
+#include <QtCore/qelapsedtimer.h>
QT_BEGIN_NAMESPACE
@@ -74,7 +75,7 @@ public:
QMimeDatabasePrivate *m_db;
protected:
bool shouldCheck();
- QDateTime m_lastCheck;
+ QElapsedTimer m_lastCheck;
};
/*
--
2.4.6