From b6e6065b0f6951042e78e6babe757393596a8a42 Mon Sep 17 00:00:00 2001
From: louis <louis.braun@gmx.de>
Date: Sun, 15 Mar 2015 15:50:12 +0100
Subject: [PATCH] added <systemmemory> viewelement in main menu

---
 HISTORY                                   |  1 +
 dtd/displaymenu.dtd                       |  9 ++++-
 libtemplate/templateview.c                |  6 ++++
 libtemplate/templateviewelement.h         |  1 +
 skinskeleton/xmlfiles/displaymenumain.xml |  8 +++++
 views/displaymenuview.c                   | 40 ++++++++++++++++++++++-
 views/displaymenuview.h                   |  2 ++
 7 files changed, 65 insertions(+), 2 deletions(-)

diff --git a/HISTORY b/HISTORY
index a7b4b34..f63fabd 100644
--- a/HISTORY
+++ b/HISTORY
@@ -213,4 +213,5 @@ Version 0.3.0
 - fixed crash when opening and closing main menu consecutively
 - fixed bug detecting menu item numbers in main menu
 - fixed recording progress bar in nopacity
+- added <systemmemory> viewelement in main menu
 
diff --git a/dtd/displaymenu.dtd b/dtd/displaymenu.dtd
index 1e2b6f5..63baaae 100644
--- a/dtd/displaymenu.dtd
+++ b/dtd/displaymenu.dtd
@@ -75,6 +75,12 @@
   condition CDATA #IMPLIED
 >
 
+<!ELEMENT systemmemory (area|areascroll)*>
+<!ATTLIST systemmemory
+  debug CDATA #IMPLIED
+  condition CDATA #IMPLIED
+>
+
 <!ELEMENT temperatures (area|areascroll)*>
 <!ATTLIST temperatures
   debug CDATA #IMPLIED
@@ -131,7 +137,8 @@
 >
 
 <!ELEMENT menumain (background | header | datetime | time | colorbuttons | scrollbar | timers | 
-                    discusage | devices | systemload | temperatures | currentschedule | currentweather | customtokens | menuitems)*>
+                    discusage | devices | systemload | systemmemory | temperatures | currentschedule | 
+                    currentweather | customtokens | menuitems)*>
 <!ATTLIST menumain
   x CDATA #REQUIRED
   y CDATA #REQUIRED
diff --git a/libtemplate/templateview.c b/libtemplate/templateview.c
index 60cd36a..989c693 100644
--- a/libtemplate/templateview.c
+++ b/libtemplate/templateview.c
@@ -1144,6 +1144,7 @@ void cTemplateViewMenu::SetViewElements(void) {
     viewElementsAllowed.insert("message");
     viewElementsAllowed.insert("discusage");
     viewElementsAllowed.insert("systemload");
+    viewElementsAllowed.insert("systemmemory");
     viewElementsAllowed.insert("temperatures");
     viewElementsAllowed.insert("timers");
     viewElementsAllowed.insert("devices");
@@ -1227,6 +1228,9 @@ string cTemplateViewMenu::GetViewElementName(eViewElement ve) {
         case veSystemLoad:
             name = "System Load";
             break;
+        case veSystemMemory:
+            name = "System Memory";
+            break;
         case veTemperatures:
             name = "Temperatures";
             break;
@@ -1348,6 +1352,8 @@ void cTemplateViewMenu::AddPixmap(string sViewElement, cTemplatePixmap *pix, vec
         ve = veDiscUsage;
     } else if (!sViewElement.compare("systemload")) {
         ve = veSystemLoad;
+    } else if (!sViewElement.compare("systemmemory")) {
+        ve = veSystemMemory;
     } else if (!sViewElement.compare("temperatures")) {
         ve = veTemperatures;
     } else if (!sViewElement.compare("timers")) {
diff --git a/libtemplate/templateviewelement.h b/libtemplate/templateviewelement.h
index 1456de6..5c7be48 100644
--- a/libtemplate/templateviewelement.h
+++ b/libtemplate/templateviewelement.h
@@ -45,6 +45,7 @@ enum eViewElement {
     veButtons,
     veDiscUsage,
     veSystemLoad,
+    veSystemMemory,
     veTemperatures,
     veTimers,
     veCurrentSchedule,
diff --git a/skinskeleton/xmlfiles/displaymenumain.xml b/skinskeleton/xmlfiles/displaymenumain.xml
index bc4c72d..e37bfcc 100644
--- a/skinskeleton/xmlfiles/displaymenumain.xml
+++ b/skinskeleton/xmlfiles/displaymenumain.xml
@@ -57,6 +57,14 @@
     <systemload>
     </systemload>
 
+    <!-- Available Variables systemmemory:
+    {totalmem}                  total system memory in MB
+    {usedmem}                   currently used system memory in MB
+    {usedmempercent}            currently used system memory in Percent
+    -->
+    <systemmemory>
+    </systemmemory>
+
     <!-- Available Variables tempreatures:
     {cputemp}                  current cpu temperature in °C
     {gputemp}                  current gpu temperature in °C
diff --git a/views/displaymenuview.c b/views/displaymenuview.c
index 1921c95..22b6084 100644
--- a/views/displaymenuview.c
+++ b/views/displaymenuview.c
@@ -1,6 +1,7 @@
 #define __STL_CONFIG_H
 #include <fstream>
 #include <iostream>
+#include <sys/sysinfo.h>
 #include <vdr/menu.h>
 #include <vdr/videodir.h>
 #include "displaymenuview.h"
@@ -224,6 +225,7 @@ void cDisplayMenuView::Action(void) {
 cDisplayMenuMainView::cDisplayMenuMainView(cTemplateView *tmplView, bool menuInit) : cDisplayMenuView(tmplView, menuInit) {
     initial = true;
     lastSystemLoad = 0.0;
+    lastMemUsage = -1;
     InitDevices();
 }
 
@@ -243,9 +245,10 @@ void cDisplayMenuMainView::DrawStaticViewElements(void) {
 
 bool cDisplayMenuMainView::DrawDynamicViewElements(void) {
     bool loadChanged = DrawLoad();
+    bool memChanged = DrawMemory();
     bool devicesChanged = DrawDevices();
     initial = false;
-    return loadChanged || devicesChanged;
+    return loadChanged || memChanged || devicesChanged;
 
 }
 
@@ -415,6 +418,41 @@ bool cDisplayMenuMainView::DrawLoad(void) {
     return true;
 }
 
+bool cDisplayMenuMainView::DrawMemory(void) {
+    if (!ExecuteViewElement(veSystemMemory)) {
+        return false;
+    }
+    struct sysinfo memInfo;
+    sysinfo (&memInfo);
+    
+    long long totalMem = memInfo.totalram;
+    totalMem += memInfo.totalswap;
+    totalMem *= memInfo.mem_unit;
+    int totalMemMB = totalMem / 1024 / 1024;
+
+    long long usedMem = memInfo.totalram - memInfo.freeram;
+    usedMem += memInfo.totalswap - memInfo.freeswap;
+    usedMem *= memInfo.mem_unit;
+    int usedMemMB = usedMem / 1024 / 1024;
+
+    if (lastMemUsage == usedMemMB) {
+        return false;
+    }
+    lastMemUsage = usedMemMB;
+
+    map < string, string > stringTokens;
+    map < string, int > intTokens;
+    intTokens.insert(pair<string,int>("totalmem", totalMemMB));
+    intTokens.insert(pair<string,int>("usedmem", usedMemMB));
+    if (totalMemMB > 0)
+        intTokens.insert(pair<string,int>("usedmempercent", usedMemMB * 100 / totalMemMB));
+
+    ClearViewElement(veSystemMemory);
+    DrawViewElement(veSystemMemory, &stringTokens, &intTokens);
+
+    return true;
+}
+
 void cDisplayMenuMainView::DrawTemperatures(void) {
     if (!ExecuteViewElement(veTemperatures)) {
         return;
diff --git a/views/displaymenuview.h b/views/displaymenuview.h
index c7aa7eb..3bc64b8 100644
--- a/views/displaymenuview.h
+++ b/views/displaymenuview.h
@@ -38,9 +38,11 @@ class cDisplayMenuMainView : public cDisplayMenuView {
 private:
     bool initial;
     double lastSystemLoad;
+    int lastMemUsage;
     void DrawTimers(void);
     void DrawDiscUsage(void);
     bool DrawLoad(void);
+    bool DrawMemory(void);
     void DrawTemperatures(void);
     bool DrawDevices(void);
     void DrawCurrentSchedule(void);