1 files changed, 14 insertions, 37 deletions

diff --git a/src/Common/SystemBackend.h b/src/Common/SystemBackend.h
index d9506a9..c8eee69 100644
--- a/src/Common/SystemBackend.h
+++ b/src/Common/SystemBackend.h
@@ -21,32 +21,12 @@
 #define MAD_COMMON_SYSTEMBACKEND_H_
 
 #include <set>
+#include <sigc++/signal.h>
 
 namespace Mad {
 namespace Common {
 
 class SystemBackend {
-  public:
-    struct UptimeInfo {
-      unsigned long uptime;
-      unsigned long idleTime;
-    };
-
-    struct MemoryInfo {
-      unsigned long totalMem;
-      unsigned long freeMem;
-      unsigned long totalSwap;
-      unsigned long freeSwap;
-    };
-
-    struct LoadInfo {
-      unsigned long currentLoad;
-      unsigned long nProcesses;
-      float loadAvg1;
-      float loadAvg5;
-      float loadAvg15;
-    };
-
   private:
     struct Compare {
       bool operator() (const SystemBackend *b1, const SystemBackend *b2) {
@@ -70,23 +50,20 @@ class SystemBackend {
       backends.erase(backend);
     }
 
-    virtual UptimeInfo uptimeInfo() {
-      UptimeInfo ret = {0, 0};
-      return ret;
+    virtual bool uptimeInfo(const sigc::slot<void, unsigned long, unsigned long>&) {
+      return false;
     }
 
-    virtual MemoryInfo memoryInfo() {
-      MemoryInfo ret = {0, 0, 0, 0};
-      return ret;
+    virtual bool memoryInfo(const sigc::slot<void, unsigned long, unsigned long, unsigned long, unsigned long>&) {
+      return false;
     }
 
-    virtual LoadInfo loadInfo() {
-      LoadInfo ret = {0, 0, 0, 0, 0};
-      return ret;
+    virtual bool loadInfo(const sigc::slot<void, unsigned long, unsigned long, float, float, float>&) {
+      return false;
     }
 
-    virtual bool doShutdown() {return false;}
-    virtual bool doReboot() {return false;}
+    virtual bool doShutdown(const sigc::slot<void>&) {return false;}
+    virtual bool doReboot(const sigc::slot<void>&) {return false;}
 
     virtual int getPriority() const {
       return 0;
@@ -95,12 +72,12 @@ class SystemBackend {
   public:
     virtual ~SystemBackend() {}
 
-    static UptimeInfo getUptimeInfo();
-    static MemoryInfo getMemoryInfo();
-    static LoadInfo getLoadInfo();
+    static bool getUptimeInfo(const sigc::slot<void, unsigned long, unsigned long> &callback);
+    static bool getMemoryInfo(const sigc::slot<void, unsigned long, unsigned long, unsigned long, unsigned long> &callback);
+    static bool getLoadInfo(const sigc::slot<void, unsigned long, unsigned long, float, float, float> &callback);
 
-    static bool shutdown();
-    static bool reboot();
+    static bool shutdown(const sigc::slot<void> &callback);
+    static bool reboot(const sigc::slot<void> &callback);
 };
 
 }