Now you can change the default /tmp directory with the flag --log_dir

$ ./gnss-sdr --log_dir=./log

Added some documentation and comments

git-svn-id: https://svn.code.sf.net/p/gnss-sdr/code/trunk@101 64b25241-fba3-4117-9849-534c7e92360d

src/core/receiver/control_thread.h

@@ -1,8 +1,12 @@
 /*!
  * \file control_thread.h
- * \brief This class represents the main thread of the application, aka control thread.
+ * \brief Interface of the receiver control plane
  * \author Carlos Aviles, 2010. carlos.avilesr(at)googlemail.com
  *
+ * GNSS Receiver Control Plane: connects the flowgraph, starts running it,
+ * and while it does not stop, reads the control messages generated by the blocks,
+ * process them, and apply the corresponding actions.
+ *
  * -------------------------------------------------------------------------
  *
  * Copyright (C) 2010-2011  (see AUTHORS file for a list of contributors)
@@ -45,10 +49,12 @@ class ControlThread
 {
 
 public:
-
-    //! Default constructor
+    /*!
+     * \brief Default constructor
+     */
     ControlThread();
 
+
     /*!
      * \brief Constructor that initializes the class with parameters
      *
@@ -56,12 +62,18 @@ public:
      */
     ControlThread(ConfigurationInterface *configuration);
 
-    //! Virtual destructor. Derived classes must implement the destructor
+
+    //! \brief Virtual destructor. Derived classes must implement the destructor
     virtual ~ControlThread();
 
-    /*!
-     * \brief Runs the ControlThread
-     */
+	/*! \brief Runs the control thread
+	 *
+	 *  This is the main loop that reads and process the control messages
+	 *  1- Connect the GNSS receiver flowgraph
+	 *  2- Start the GNSS receiver flowgraph
+	 *  while (flowgraph_->running() && !stop)_{
+	 *  3- Read control messages and process them }
+	 */
     void run();
 
     /*!
@@ -71,6 +83,7 @@ public:
      */
     void set_control_queue(gr_msg_queue_sptr control_queue);
 
+
     unsigned int processed_control_messages()
     {
         return processed_control_messages_;
@@ -88,6 +101,7 @@ public:
      */
     GNSSFlowgraph* flowgraph()
     {
+
         return flowgraph_;
 	}