Call el_resize when the window size changes.

<rdar://problem/13270100>

llvm-svn: 175926

lldb/tools/driver/Driver.cpp

@@ -1611,6 +1611,15 @@ Driver::ReadyForCommand ()
     }
 }
 
+void
+Driver::ResizeWindow (unsigned short col)
+{
+    GetDebugger().SetTerminalWidth (col);
+    if (m_io_channel_ap.get() != NULL)
+    {
+        m_io_channel_ap->ElResize();
+    }
+}
 
 void
 sigwinch_handler (int signo)
@@ -1621,7 +1630,7 @@ sigwinch_handler (int signo)
     {
         if ((window_size.ws_col > 0) && g_driver != NULL)
         {
-            g_driver->GetDebugger().SetTerminalWidth (window_size.ws_col);
+            g_driver->ResizeWindow (window_size.ws_col);
         }
     }
 }

lldb/tools/driver/Driver.h

@@ -151,6 +151,9 @@ public:
     {
         m_done = true;
     }
+    
+    void
+    ResizeWindow (unsigned short col);
 
 private:
     lldb::SBDebugger m_debugger;

lldb/tools/driver/IOChannel.cpp

@@ -90,6 +90,12 @@ IOChannel::ElCompletionFn (EditLine *e, int ch)
     }
 }
 
+void
+IOChannel::ElResize()
+{
+    el_resize(m_edit_line);
+}
+
 unsigned char
 IOChannel::HandleCompletion (EditLine *e, int ch)
 {

lldb/tools/driver/IOChannel.h

@@ -104,6 +104,9 @@ public:
 
     static unsigned char 
     ElCompletionFn (EditLine *e, int ch);
+    
+    void
+    ElResize();
 
 protected: