From ca761ec7b8ed9cb105375069c5e0ae256bdde6d8 Mon Sep 17 00:00:00 2001
From: fanpengcheng_cm <fanpengcheng_cm@deepin.com>
Date: Sat, 14 Mar 2020 21:26:29 +0800
Subject: [PATCH] feat:Lock the application's physical memory
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dock锁定到物理内存，不要到swap分区
---
 debian/postinst | 20 ++++++++++++++++++++
 frame/main.cpp  |  5 +++++
 2 files changed, 25 insertions(+)
 create mode 100644 debian/postinst

diff --git a/debian/postinst b/debian/postinst
new file mode 100644
index 000000000..363b76b36
--- /dev/null
+++ b/debian/postinst
@@ -0,0 +1,20 @@
+#!/bin/sh
+set -e
+
+if [ "$1" = configure ]; then
+	if command -v setcap > /dev/null; then
+		if setcap cap_ipc_lock+eip /usr/bin/dde-dock;then
+			chmod u-s /usr/bin/dde-dock
+		else
+			echo "Setcap failed, falling back to setuid" >&2
+			chmod u+s /usr/bin/dde-dock
+		fi
+	else
+		echo "Setcap is not installed, falling back to setuid" >&2
+		chmod u+s /usr/bin/dde-dock
+	fi  
+fi
+
+#DEBHELPER#
+
+exit 0
diff --git a/frame/main.cpp b/frame/main.cpp
index 558432789..478c1f58b 100644
--- a/frame/main.cpp
+++ b/frame/main.cpp
@@ -35,6 +35,8 @@
 #include <unistd.h>
 #include "dbus/dbusdockadaptors.h"
 
+#include <sys/mman.h>
+
 DWIDGET_USE_NAMESPACE
 #ifdef DCORE_NAMESPACE
 DCORE_USE_NAMESPACE
@@ -111,6 +113,9 @@ int main(int argc, char *argv[])
     DApplication::loadDXcbPlugin();
     DApplication app(argc, argv);
 
+    // 锁定物理内存，用于国测测试
+    qDebug() << "lock memory result:" << mlockall(MCL_CURRENT | MCL_FUTURE);
+
     app.setOrganizationName("deepin");
     app.setApplicationName("dde-dock");
     app.setApplicationDisplayName("DDE Dock");