[ekiga] Fixed possible threading issue in the PTLIB audio input code

[Julien Puydt <jpuydt src gnome org>]

commit 4ccda1f1da5646807abac40135bf0beb72ca442c
Author: Julien Puydt <jpuydt noether localdomain>
Date:   Tue Apr 21 16:55:21 2009 +0200

    Fixed possible threading issue in the PTLIB audio input code
    
    Don't use make_slot in threads
---
 .../components/ptlib/audioinput-manager-ptlib.cpp  |   28 +++++++++++++++++---
 .../components/ptlib/audioinput-manager-ptlib.h    |    7 +++++
 2 files changed, 31 insertions(+), 4 deletions(-)

diff --git a/lib/engine/components/ptlib/audioinput-manager-ptlib.cpp b/lib/engine/components/ptlib/audioinput-manager-ptlib.cpp
index e76f021..0d70fc0 100644
--- a/lib/engine/components/ptlib/audioinput-manager-ptlib.cpp
+++ b/lib/engine/components/ptlib/audioinput-manager-ptlib.cpp
@@ -129,7 +129,7 @@ bool GMAudioInputManager_ptlib::open (unsigned channels, unsigned samplerate, un
 
   if (error_code != Ekiga::AI_ERROR_NONE) {
     PTRACE(1, "GMAudioInputManager_ptlib\tEncountered error " << error_code << " while opening device ");
-    Ekiga::Runtime::run_in_main (sigc::bind (device_error.make_slot (), current_state.device, error_code));
+    Ekiga::Runtime::run_in_main (sigc::bind (sigc::mem_fun (this, &GMAudioInputManager_ptlib::device_error_in_main), current_state.device, error_code));
     return false;
   }
 
@@ -140,7 +140,7 @@ bool GMAudioInputManager_ptlib::open (unsigned channels, unsigned samplerate, un
   Ekiga::AudioInputSettings settings;
   settings.volume = volume;
   settings.modifyable = true;
-  Ekiga::Runtime::run_in_main (sigc::bind (device_opened.make_slot (), current_state.device, settings));
+  Ekiga::Runtime::run_in_main (sigc::bind (sigc::mem_fun (this, &GMAudioInputManager_ptlib::device_opened_in_main), current_state.device, settings));
 
   return true;
 }
@@ -153,7 +153,7 @@ void GMAudioInputManager_ptlib::close()
      input_device = NULL;
   }
   current_state.opened = false;
-  Ekiga::Runtime::run_in_main (sigc::bind (device_closed.make_slot (), current_state.device));
+  Ekiga::Runtime::run_in_main (sigc::bind (sigc::mem_fun (this, &GMAudioInputManager_ptlib::device_closed_in_main), current_state.device));
 }
 
 void GMAudioInputManager_ptlib::set_buffer_size (unsigned buffer_size, unsigned num_buffers)
@@ -184,7 +184,7 @@ bool GMAudioInputManager_ptlib::get_frame_data (char *data,
     }
     if (bytes_read != size) {
       PTRACE(1, "GMAudioInputManager_ptlib\tEncountered error while trying to read data");
-      Ekiga::Runtime::run_in_main (sigc::bind (device_error.make_slot (), current_state.device, Ekiga::AI_ERROR_READ));
+      Ekiga::Runtime::run_in_main (sigc::bind (sigc::mem_fun (this, &GMAudioInputManager_ptlib::device_error_in_main), current_state.device, Ekiga::AI_ERROR_READ));
     }
   }
 
@@ -214,3 +214,23 @@ bool GMAudioInputManager_ptlib::has_device(const std::string & source, const std
   }*/
   return false;
 }
+
+void
+GMAudioInputManager_ptlib::device_error_in_main (Ekiga::AudioInputDevice device,
+						 Ekiga::AudioInputErrorCodes code)
+{
+  device_error.emit (device, code);
+}
+
+void
+GMAudioInputManager_ptlib::device_opened_in_main (Ekiga::AudioInputDevice device,
+						  Ekiga::AudioInputSettings settings)
+{
+  device_opened.emit (device, settings);
+}
+
+void
+GMAudioInputManager_ptlib::device_closed_in_main (Ekiga::AudioInputDevice device)
+{
+  device_closed.emit (device);
+}
diff --git a/lib/engine/components/ptlib/audioinput-manager-ptlib.h b/lib/engine/components/ptlib/audioinput-manager-ptlib.h
index 4f525b2..a23d11f 100644
--- a/lib/engine/components/ptlib/audioinput-manager-ptlib.h
+++ b/lib/engine/components/ptlib/audioinput-manager-ptlib.h
@@ -81,6 +81,13 @@
       unsigned expectedFrameSize;
 
       PSoundChannel *input_device;
+
+    private:
+      void device_error_in_main (Ekiga::AudioInputDevice device,
+				 Ekiga::AudioInputErrorCodes code);
+      void device_opened_in_main (Ekiga::AudioInputDevice device,
+				  Ekiga::AudioInputSettings settings);
+      void device_closed_in_main (Ekiga::AudioInputDevice device);
   };
 /**
  * @}