--- /dev/null
+/* This file is part of the Linux Trace Toolkit viewer
+ * Copyright (C) 2006 Parisa heidari (inspired from CFV by Mathieu Desnoyers)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License Version 2 as
+ * published by the Free Software Foundation;
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston,
+ * MA 02111-1307, USA.
+ */
+
+
+/* eventhooks.h defines the hooks that are given to processTrace as parameter.
+ * These hooks call the drawing API to draw the information on the screen,
+ * using information from Context, but mostly state (running, waiting...).
+ */
+
+
+#ifndef _EVENT_HOOKS_H
+#define _EVENT_HOOKS_H
+
+#include <gtk/gtk.h>
+#include <lttvwindow/mainwindow.h>
+#include <ltt/time.h>
+
+#include "histobuttonwidget.h"
+#include "histodrawing.h"
+#include "histocfv.h"
+
+
+/* Structure used to store and use information relative to one events refresh
+ * request. Typically filled in by the expose event callback, then passed to the
+ * library call, then used by the drawing hooks. Then, once all the events are
+ * sent, it is freed by the hook called after the reading.
+ */
+//typedef struct _EventRequest
+//{
+// ControlFlowData *control_flow_data;
+// LttTime time_begin, time_end;
+// gint x_begin, x_end;
+ /* Fill the Events_Context during the initial expose, before calling for
+ * events.
+ */
+ //GArray Events_Context; //FIXME
+//} EventRequest ;
+
+
+
+
+
+void send_test_data(ButtonWidget *buttonwidget, histoDrawing_t *drawing);//??
+
+GtkWidget *h_guihistocontrolflow(LttvPlugin *plugin);
+
+//GtkWidget *h_legend(Tab *tab);
+
+int histo_event_selected_hook(void *hook_data, void *call_data);
+
+/*
+ * The draw event hook is called by the reading API to have a
+ * particular event drawn on the screen.
+ * @param hook_data ControlFlowData structure of the viewer.
+ * @param call_data Event context with state.
+ *
+ * This function basically draw lines and icons. Two types of lines are drawn :
+ * one small (3 pixels?) representing the state of the process and the second
+ * type is thicker (10 pixels?) representing on which CPU a process is running
+ * (and this only in running state).
+ *
+ * Extremums of the lines :
+ * x_min : time of the last event context for this process kept in memory.
+ * x_max : time of the current event.
+ * y : middle of the process in the process list. The process is found in the
+ * list, therefore is it's position in pixels.
+ *
+ * The choice of lines'color is defined by the context of the last event for this
+ * process.
+ */
+//int histo_before_schedchange_hook(void *hook_data, void *call_data);
+int histo_after_schedchange_hook(void *hook_data, void *call_data);
+int histo_before_execmode_hook(void *hook_data, void *call_data);
+int histo_after_execmode_hook(void *hook_data, void *call_data);
+
+
+int histo_before_process_exit_hook(void *hook_data, void *call_data);
+int histo_before_process_release_hook(void *hook_data, void *call_data);
+int histo_after_process_exit_hook(void *hook_data, void *call_data);
+int histo_after_process_fork_hook(void *hook_data, void *call_data);
+int histo_after_fs_exec_hook(void *hook_data, void *call_data);
+
+
+#if 0
+int before_process_hook(void *hook_data, void *call_data);
+int after_process_hook(void *hook_data, void *call_data);
+#endif //0
+
+//void histo_draw_closure(guint key, gpointer value, gpointer user_data);
+
+int histo_before_chunk(void *hook_data, void *call_data);
+int histo_after_chunk(void *hook_data, void *call_data);
+//int histo_before_request(void *hook_data, void *call_data);
+//int histo_after_request(void *hook_data, void *call_data);
+
+
+
+gint histo_update_time_window_hook(void *hook_data, void *call_data);
+gint histo_update_current_time_hook(void *hook_data, void *call_data);
+gint histo_traceset_notify(void *hook_data, void *call_data);
+gint histo_redraw_notify(void *hook_data, void *call_data);
+gint histo_continue_notify(void *hook_data, void *call_data);
+
+//just for histogram
+void histo_request_event( HistoControlFlowData *histocontrol_flow_data,guint x, guint width);
+int histo_count_event(void *hook_data, void *call_data);
+int histo_before_trace(void *hook_data, void *call_data);//replaced for histo_before_request
+int histo_after_trace(void *hook_data, void *call_data);//replaced for histo_after_request
+
+gboolean histo_filter_changed(void * hook_data, void * call_data);
+
+void histogram_show(HistoControlFlowData *histocontrol_flow_data,guint draw_begin,guint draw_end);
+#endif // _EVENT_HOOKS_H
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