lttv/modules/gui/histogram/histomodule.c

   1 /* This file is part of the Linux Trace Toolkit viewer
   2  * Copyright (C) 2006 Parisa heidari (inspired from CFV by 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., 51 Franklin Street, Fifth Floor, Boston,
  16  * MA 02110-1301, USA.
  17  */
  18
  19
  20 #ifdef HAVE_CONFIG_H
  21 #include <config.h>
  22 #endif
  23
  24 #include <glib.h>
  25 #include <lttv/lttv.h>
  26 #include <lttv/module.h>
  27 #include <lttvwindow/lttvwindow.h>
  28
  29 #include "histocfv.h"
  30 #include "histoeventhooks.h"
  31
  32 #include "hHistogramInsert.xpm"
  33
  34
  35 GQuark LTT_NAME_CPU;
  36
  37 /** Array containing instanced objects. Used when module is unloaded */
  38 GSList *g_histo_control_flow_data_list = NULL ;
  39
  40 /*****************************************************************************
  41  *                 Functions for module loading/unloading                    *
  42  *****************************************************************************/
  43 /**
  44  * plugin's init function
  45  *
  46  * This function initializes the Histogram Control Flow Viewer functionnality through the
  47  * gtkTraceSet API.
  48  */
  49 static void histo_init() {
  50
  51   g_info("GUI ControlFlow Viewer init()");
  52
  53   /* Register the toolbar insert button and menu entry*/
  54   lttvwindow_register_constructor("histogram",
  55                                   "/",
  56                                   "Insert Histogram Viewer",
  57                                   hHistogramInsert_xpm,
  58                                   "Insert Histogram Viewer",
  59                                   h_guihistocontrolflow);
  60
  61   LTT_NAME_CPU = g_quark_from_string("/cpu");
  62 }
  63
  64 void histo_destroy_walk(gpointer data, gpointer user_data)
  65 {
  66   g_info("Walk destroy GUI Histogram Control Flow Viewer");
  67   guihistocontrolflow_destructor_full((HistoControlFlowData*)data);
  68 }
  69
  70
  71
  72 /**
  73  * plugin's destroy function
  74  *
  75  * This function releases the memory reserved by the module and unregisters
  76  * everything that has been registered in the gtkTraceSet API.
  77  */
  78 static void histo_destroy() {
  79   g_info("GUI Histogram Control Flow Viewer destroy()");
  80
  81   g_slist_foreach(g_histo_control_flow_data_list, histo_destroy_walk, NULL );
  82
  83   g_slist_free(g_histo_control_flow_data_list);
  84
  85   /* Unregister the toolbar insert button and menu entry */
  86   lttvwindow_unregister_constructor(h_guihistocontrolflow);
  87
  88 }
  89
  90
  91 LTTV_MODULE("guihistogram", "Event Histogram viewer", \
  92     "Graphical module to view events' density histogram", \
  93     histo_init, histo_destroy, "lttvwindow")