trunk/lttng-xenomai/LinuxTraceToolkitViewer-0.8.61-xenoltt/lttv/modules/gui/controlflow/module.c

   1 /* This file is part of the Linux Trace Toolkit viewer
   2  * Copyright (C) 2003-2004 Mathieu Desnoyers
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License Version 2 as
   6  * published by the Free Software Foundation;
   7  *
   8  * This program is distributed in the hope that it will be useful,
   9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11  * GNU General Public License for more details.
  12  *
  13  * You should have received a copy of the GNU General Public License
  14  * along with this program; if not, write to the Free Software
  15  * Foundation, Inc., 59 Temple Place - Suite 330, Boston,
  16  * MA 02111-1307, USA.
  17  */
  18
  19
  20
  21 /*! \defgroup guiEvents libguiControlFlow: The GUI ControlFlow display plugin */
  22 /*\@{*/
  23
  24 /*! \file guiControlFlow.c
  25  * \brief Graphical plugin for showing control flow of a trace.
  26  *
  27  * This plugin adds a Control Flow Viewer functionnality to Linux TraceToolkit
  28  * GUI when this plugin is loaded. The init and destroy functions add the
  29  * viewer's insertion menu item and toolbar icon by calling viewer.h's
  30  * API functions. Then, when a viewer's object is created, the constructor
  31  * creates ans register through API functions what is needed to interact
  32  * with the TraceSet window.
  33  *
  34  * This plugin uses the gdk library to draw the events and gtk to interact
  35  * with the user.
  36  *
  37  * Author : Mathieu Desnoyers, June 2003
  38  */
  39
  40 #ifdef HAVE_CONFIG_H
  41 #include <config.h>
  42 #endif
  43
  44 #include <glib.h>
  45 #include <lttv/lttv.h>
  46 #include <lttv/module.h>
  47 #include <lttvwindow/lttvwindow.h>
  48
  49 #include "cfv.h"
  50 #include "lttv_plugin_cfv.h"
  51 #include "eventhooks.h"
  52
  53 #include "hGuiControlFlowInsert.xpm"
  54 #include "hGuiXenoLTTInsert.xpm"
  55 #include "hLegendInsert.xpm"
  56
  57 GQuark LTT_NAME_CPU;
  58
  59 /** Array containing instanced objects. Used when module is unloaded */
  60 GSList *g_control_flow_data_list = NULL ;
  61
  62 GSList *g_legend_list = NULL ;
  63
  64 /*****************************************************************************
  65  *                 Functions for module loading/unloading                    *
  66  *****************************************************************************/
  67 /**
  68  * plugin's init function
  69  *
  70  * This function initializes the Control Flow Viewer functionnality through the
  71  * gtkTraceSet API.
  72  */
  73 static void init() {
  74
  75   g_info("GUI ControlFlow Viewer init()");
  76
  77   /* Register the toolbar insert button and menu entry*/
  78   lttvwindow_register_constructor("guicontrolflow",
  79                                   "/",
  80                                   "Insert Control Flow Viewer",
  81                                   hGuiControlFlowInsert_xpm,
  82                                   "Insert Control Flow Viewer",
  83                                   h_guicontrolflow);
  84
  85   lttvwindow_register_constructor("guicontrolflowlegend",
  86                                   "/",
  87                                   "Popup Control Flow Viewer Legend",
  88                                   hLegendInsert_xpm,
  89                                   "Popup Control Flow Viewer Legend",
  90                                   h_legend);
  91
  92
  93   LTT_NAME_CPU = g_quark_from_string("/cpu");
  94 }
  95
  96 void destroy_walk(gpointer data, gpointer user_data)
  97 {
  98   g_info("Walk destroy GUI Control Flow Viewer");
  99   guicontrolflow_destructor_full((LttvPluginCFV*)data);
 100 }
 101
 102 void destroy_legend_walk(gpointer data, gpointer user_data)
 103 {
 104   g_info("Walk destroy GUI Control Flow Viewer");
 105   legend_destructor((GtkWindow*)data);
 106 }
 107
 108
 109
 110 /**
 111  * plugin's destroy function
 112  *
 113  * This function releases the memory reserved by the module and unregisters
 114  * everything that has been registered in the gtkTraceSet API.
 115  */
 116 static void destroy() {
 117   g_info("GUI Control Flow Viewer destroy()");
 118
 119   g_slist_foreach(g_control_flow_data_list, destroy_walk, NULL );
 120
 121   g_slist_free(g_control_flow_data_list);
 122
 123   g_slist_foreach(g_legend_list, destroy_legend_walk, NULL );
 124
 125   g_slist_free(g_control_flow_data_list);
 126
 127   /* Unregister the toolbar insert button and menu entry */
 128   lttvwindow_unregister_constructor(h_guicontrolflow);
 129   lttvwindow_unregister_constructor(h_legend);
 130 }
 131
 132
 133 LTTV_MODULE("guicontrolflow", "Control flow viewer", \
 134     "Graphical module to view processes state and control flow", \
 135     init, destroy, "lttvwindow")