show the status of stap processes in the process window

Also, the "kill" button now works.

* grapher/StapParser.hxx (_ioConnection, _errIoConnection): new
  members for sigc connections.
  (initIo): New function
  (parsers, parserListChangedSignal): new variables
* grapher/StapParser.cxx (ioCallback): disconnect signals when child
  dies
  (initIo): new function
* grapher/grapher.cxx (StapLauncher): eliminate death callback in
  favor of childDied signal. Use global parsers list
  (ProcWindow::_listSelection): new member
  (ProcWindow::show, hide, onParserListChanged, onSelectionChanged,
  onKill): new functions
  (ProcWindow::ProcWindow): Set up cell renderer for status icon
* grapher/processwindow.glade: labels for display script and stap arguments

1 files changed, 8 insertions, 0 deletions

diff --git a/grapher/StapParser.hxx b/grapher/StapParser.hxx
index cfb807a8..4dd711e6 100644
--- a/grapher/StapParser.hxx
+++ b/grapher/StapParser.hxx
@@ -38,6 +38,8 @@ namespace systemtap
     int _inFd;
     unsigned char _lineEndChar;
     std::tr1::shared_ptr<StapProcess> _process;
+    sigc::connection _ioConnection;
+    sigc::connection _errIoConnection;
   public:
     StapParser()
       :  _errFd(-1), _inFd(-1), _lineEndChar('\n')
@@ -63,7 +65,13 @@ namespace systemtap
     {
       _process = process;
     }
+    void initIo(int inFd, int errFd);
   };
 
   sigc::signal<void, pid_t>& childDiedSignal();
+
+  typedef std::vector<std::tr1::shared_ptr<StapParser> > ParserList;
+  extern ParserList parsers;
+
+  sigc::signal<void>& parserListChangedSignal();
 }