From 27da5ad525841f7b335318c620cc25410b2606e9 Mon Sep 17 00:00:00 2001
From: Frederik Gladhorn <frederik.gladhorn@qt.io>
Date: Thu, 23 May 2019 11:18:00 +0200
Subject: Bump version

Change-Id: If9f3855e0d8451962bb05749a39c3cdfc3d0f148
---
 .qmake.conf | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.qmake.conf b/.qmake.conf
index 1bf9543..f1a6177 100644
--- a/.qmake.conf
+++ b/.qmake.conf
@@ -1,3 +1,3 @@
 load(qt_build_config)
 
-MODULE_VERSION = 5.12.3
+MODULE_VERSION = 5.12.4
-- 
cgit v1.2.1


From 68327f976994cc941b58c2b2e3eb7726809509fd Mon Sep 17 00:00:00 2001
From: Antti Kokko <antti.kokko@qt.io>
Date: Thu, 23 May 2019 15:20:41 +0300
Subject: Add changes file for Qt 5.12.4

Change-Id: If8b47a6ab57b14c025ceec571ed0c372df147ae3
Reviewed-by: Denis Shienkov <denis.shienkov@gmail.com>
---
 dist/changes-5.12.4 | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)
 create mode 100644 dist/changes-5.12.4

diff --git a/dist/changes-5.12.4 b/dist/changes-5.12.4
new file mode 100644
index 0000000..5097cf7
--- /dev/null
+++ b/dist/changes-5.12.4
@@ -0,0 +1,25 @@
+Qt 5.12.4 is a bug-fix release. It maintains both forward and backward
+compatibility (source and binary) with Qt 5.12.0 through 5.12.3.
+
+For more details, refer to the online documentation included in this
+distribution. The documentation is also available online:
+
+https://doc.qt.io/qt-5/index.html
+
+The Qt version 5.12 series is binary compatible with the 5.11.x series.
+Applications compiled for 5.11 will continue to run with 5.12.
+
+Some of the changes listed in this file include issue tracking numbers
+corresponding to tasks in the Qt Bug Tracker:
+
+https://bugreports.qt.io/
+
+Each of these identifiers can be entered in the bug tracker to obtain more
+information about a particular change.
+
+****************************************************************************
+*                            Qt 5.12.4 Changes                             *
+****************************************************************************
+
+ -  Fixed enumeration of 'Gadget' (/dev/ttyGS*) serial devices
+   on Linux.
-- 
cgit v1.2.1


From 85ee2c658a45d2958a54045951d236769640337f Mon Sep 17 00:00:00 2001
From: Joerg Bornemann <joerg.bornemann@qt.io>
Date: Mon, 17 Jun 2019 15:14:08 +0200
Subject: Emit _q_notify only if there's no notification pending

When using the waitXXX functions in a loop, many _q_notify signals are
emitted. They are connection via Qt::QueuedConnection, but the event
loop never gets the chance to process them.

Introduce a counter to count the attempts to send a notification, but
only send it once.

Fixes: QTBUG-74961
Change-Id: I0ee4522db63844bdd37169d3a31bde2d6f92f383
Reviewed-by: Denis Shienkov <denis.shienkov@gmail.com>
---
 src/serialport/qwinoverlappedionotifier.cpp | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/src/serialport/qwinoverlappedionotifier.cpp b/src/serialport/qwinoverlappedionotifier.cpp
index 615dacc..233ee69 100644
--- a/src/serialport/qwinoverlappedionotifier.cpp
+++ b/src/serialport/qwinoverlappedionotifier.cpp
@@ -129,6 +129,7 @@ public:
     HANDLE hSemaphore = nullptr;
     HANDLE hResultsMutex = nullptr;
     QAtomicInt waiting;
+    QAtomicInt pendingNotifications;
     QQueue<IOResult> results;
 };
 
@@ -395,14 +396,17 @@ void QWinOverlappedIoNotifierPrivate::notify(DWORD numberOfBytes, DWORD errorCod
     results.enqueue(IOResult(numberOfBytes, errorCode, overlapped));
     ReleaseMutex(hResultsMutex);
     ReleaseSemaphore(hSemaphore, 1, NULL);
-    if (!waiting)
+    if (!waiting && pendingNotifications-- == 0)
         emit q->_q_notify();
 }
 
 void QWinOverlappedIoNotifierPrivate::_q_notified()
 {
-    if (WaitForSingleObject(hSemaphore, 0) == WAIT_OBJECT_0)
-        dispatchNextIoResult();
+    int n = pendingNotifications.fetchAndStoreAcquire(0);
+    while (--n >= 0) {
+        if (WaitForSingleObject(hSemaphore, 0) == WAIT_OBJECT_0)
+            dispatchNextIoResult();
+    }
 }
 
 OVERLAPPED *QWinOverlappedIoNotifierPrivate::dispatchNextIoResult()
-- 
cgit v1.2.1


From 9509b6d3ee02c3c4a0b98dc95bc9787a3c514a18 Mon Sep 17 00:00:00 2001
From: Frederik Gladhorn <frederik.gladhorn@qt.io>
Date: Mon, 1 Jul 2019 16:02:26 +0200
Subject: Bump version

Change-Id: I4bbf5180086cfa7c607448e0896c0a73be7764c9
---
 .qmake.conf | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.qmake.conf b/.qmake.conf
index f1a6177..b5454e5 100644
--- a/.qmake.conf
+++ b/.qmake.conf
@@ -1,3 +1,3 @@
 load(qt_build_config)
 
-MODULE_VERSION = 5.12.4
+MODULE_VERSION = 5.12.5
-- 
cgit v1.2.1