add killProcess method

 - only implemented under windows where it could be needed for update
 - even the delete file method moves files to temp which can not be removed, it is much safer to kill the process

Change-Id: Ide043657d5f74186da02cb18a87072b18910c964
Reviewed-by: Oliver Wolff <oliver.wolff@nokia.com>
Reviewed-by: Karsten Heimrich <karsten.heimrich@nokia.com>

4 files changed, 56 insertions, 0 deletions

diff --git a/src/libs/kdtools/kdsysinfo.h b/src/libs/kdtools/kdsysinfo.h
index be1b76fca..bab32979a 100644
--- a/src/libs/kdtools/kdsysinfo.h
+++ b/src/libs/kdtools/kdsysinfo.h
@@ -70,6 +70,7 @@ struct ProcessInfo
 quint64 installedMemory();
 QList<VolumeInfo> mountedVolumes();
 QList<ProcessInfo> runningProcesses();
+bool killProcess(const ProcessInfo &process, int msecs = 30000);
 bool  pathIsOnLocalDevice(const QString &path);
 
 } // namespace KDUpdater
diff --git a/src/libs/kdtools/kdsysinfo_mac.cpp b/src/libs/kdtools/kdsysinfo_mac.cpp
index 6ec6b6760..e81b88495 100644
--- a/src/libs/kdtools/kdsysinfo_mac.cpp
+++ b/src/libs/kdtools/kdsysinfo_mac.cpp
@@ -138,4 +138,12 @@ bool pathIsOnLocalDevice(const QString &path)
     return true;
 }
 
+bool killProcess(const ProcessInfo &process, int msecs)
+{
+    Q_UNUSED(process);
+    Q_UNUSED(msecs);
+
+    return true;
+}
+
 } // namespace KDUpdater
diff --git a/src/libs/kdtools/kdsysinfo_win.cpp b/src/libs/kdtools/kdsysinfo_win.cpp
index 92d87d680..3e99e3925 100644
--- a/src/libs/kdtools/kdsysinfo_win.cpp
+++ b/src/libs/kdtools/kdsysinfo_win.cpp
@@ -210,6 +210,45 @@ QList<ProcessInfo> runningProcesses()
     return param.processes;
 }
 
+bool CALLBACK TerminateAppEnum(HWND hwnd, LPARAM lParam)
+{
+   DWORD dwID;
+   GetWindowThreadProcessId(hwnd, &dwID);
+
+   if (dwID == (DWORD)lParam)
+      PostMessage(hwnd, WM_CLOSE, 0, 0);
+
+   return true;
+}
+
+bool killProcess(const ProcessInfo &process, int msecs)
+{
+    DWORD dwTimeout = msecs;
+    if (msecs == -1)
+        dwTimeout = INFINITE;
+
+    // If we can't open the process with PROCESS_TERMINATE rights,
+    // then we give up immediately.
+    HANDLE hProc = OpenProcess(SYNCHRONIZE | PROCESS_TERMINATE, FALSE, process.id);
+
+    if (hProc == 0)
+        return false;
+
+    // TerminateAppEnum() posts WM_CLOSE to all windows whose PID
+    // matches your process's.
+    EnumWindows((WNDENUMPROC)TerminateAppEnum, (LPARAM)process.id);
+
+    // Wait on the handle. If it signals, great. If it times out,
+    // then you kill it.
+    bool returnValue = false;
+    if (WaitForSingleObject(hProc, dwTimeout) != WAIT_OBJECT_0)
+        returnValue = TerminateProcess(hProc, 0);
+
+    CloseHandle(hProc) ;
+
+    return returnValue;
+}
+
 // REPARSE_DATA_BUFFER structure from msdn help: http://msdn.microsoft.com/en-us/library/ff552012.aspx
 typedef struct _REPARSE_DATA_BUFFER {
     ULONG  ReparseTag;
diff --git a/src/libs/kdtools/kdsysinfo_x11.cpp b/src/libs/kdtools/kdsysinfo_x11.cpp
index 1a93afb15..5a816dc18 100644
--- a/src/libs/kdtools/kdsysinfo_x11.cpp
+++ b/src/libs/kdtools/kdsysinfo_x11.cpp
@@ -122,4 +122,12 @@ bool pathIsOnLocalDevice(const QString &path)
     return true;
 }
 
+bool killProcess(const ProcessInfo &process, int msecs)
+{
+    Q_UNUSED(process);
+    Q_UNUSED(msecs);
+
+    return true;
+}
+
 } // namespace KDUpdater