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// SPDX-License-Identifier: GPL-2.0-or-later
/**
* @file
* Memory statistics dialog.
*/
/* Authors:
* MenTaLguY <mental@rydia.net>
*
* Copyright (C) 2005
*
* Released under GNU GPL v2+, read the file 'COPYING' for more information.
*/
#include "ui/dialog/memory.h"
#include <glibmm/i18n.h>
#include <glibmm/main.h>
#include <gtkmm/liststore.h>
#include <gtkmm/treeview.h>
#include <gtkmm/dialog.h>
#include "inkgc/gc-core.h"
#include "debug/heap.h"
#include "verbs.h"
namespace Inkscape {
namespace UI {
namespace Dialog {
namespace {
Glib::ustring format_size(std::size_t value) {
if (!value) {
return Glib::ustring("0");
}
typedef std::vector<char> Digits;
typedef std::vector<Digits *> Groups;
Groups groups;
Digits *digits;
while (value) {
unsigned places=3;
digits = new Digits();
digits->reserve(places);
while ( value && places ) {
digits->push_back('0' + (char)( value % 10 ));
value /= 10;
--places;
}
groups.push_back(digits);
}
Glib::ustring temp;
while (true) {
digits = groups.back();
while (!digits->empty()) {
temp.append(1, digits->back());
digits->pop_back();
}
delete digits;
groups.pop_back();
if (groups.empty()) {
break;
}
temp.append(",");
}
return temp;
}
}
struct Memory::Private {
class ModelColumns : public Gtk::TreeModel::ColumnRecord {
public:
Gtk::TreeModelColumn<Glib::ustring> name;
Gtk::TreeModelColumn<Glib::ustring> used;
Gtk::TreeModelColumn<Glib::ustring> slack;
Gtk::TreeModelColumn<Glib::ustring> total;
ModelColumns() { add(name); add(used); add(slack); add(total); }
};
Private() {
model = Gtk::ListStore::create(columns);
view.set_model(model);
view.append_column(_("Heap"), columns.name);
view.append_column(_("In Use"), columns.used);
// TRANSLATORS: "Slack" refers to memory which is in the heap but currently unused.
// More typical usage is to call this memory "free" rather than "slack".
view.append_column(_("Slack"), columns.slack);
view.append_column(_("Total"), columns.total);
}
void update();
void start_update_task();
void stop_update_task();
ModelColumns columns;
Glib::RefPtr<Gtk::ListStore> model;
Gtk::TreeView view;
sigc::connection update_task;
};
void Memory::Private::update() {
Debug::Heap::Stats total = { 0, 0 };
int aggregate_features = Debug::Heap::SIZE_AVAILABLE | Debug::Heap::USED_AVAILABLE;
Gtk::ListStore::iterator row;
row = model->children().begin();
for ( unsigned i = 0 ; i < Debug::heap_count() ; i++ ) {
Debug::Heap *heap=Debug::get_heap(i);
if (heap) {
Debug::Heap::Stats stats=heap->stats();
int features=heap->features();
aggregate_features &= features;
if ( row == model->children().end() ) {
row = model->append();
}
row->set_value(columns.name, Glib::ustring(heap->name()));
if ( features & Debug::Heap::SIZE_AVAILABLE ) {
row->set_value(columns.total, format_size(stats.size));
total.size += stats.size;
} else {
row->set_value(columns.total, Glib::ustring(_("Unknown")));
}
if ( features & Debug::Heap::USED_AVAILABLE ) {
row->set_value(columns.used, format_size(stats.bytes_used));
total.bytes_used += stats.bytes_used;
} else {
row->set_value(columns.used, Glib::ustring(_("Unknown")));
}
if ( features & Debug::Heap::SIZE_AVAILABLE &&
features & Debug::Heap::USED_AVAILABLE )
{
row->set_value(columns.slack, format_size(stats.size - stats.bytes_used));
} else {
row->set_value(columns.slack, Glib::ustring(_("Unknown")));
}
++row;
}
}
if ( row == model->children().end() ) {
row = model->append();
}
Glib::ustring value;
row->set_value(columns.name, Glib::ustring(_("Combined")));
if ( aggregate_features & Debug::Heap::SIZE_AVAILABLE ) {
row->set_value(columns.total, format_size(total.size));
} else {
row->set_value(columns.total, Glib::ustring("> ") + format_size(total.size));
}
if ( aggregate_features & Debug::Heap::USED_AVAILABLE ) {
row->set_value(columns.used, format_size(total.bytes_used));
} else {
row->set_value(columns.used, Glib::ustring("> ") + format_size(total.bytes_used));
}
if ( aggregate_features & Debug::Heap::SIZE_AVAILABLE &&
aggregate_features & Debug::Heap::USED_AVAILABLE )
{
row->set_value(columns.slack, format_size(total.size - total.bytes_used));
} else {
row->set_value(columns.slack, Glib::ustring(_("Unknown")));
}
++row;
while ( row != model->children().end() ) {
row = model->erase(row);
}
}
void Memory::Private::start_update_task() {
update_task.disconnect();
update_task = Glib::signal_timeout().connect(
sigc::bind_return(sigc::mem_fun(*this, &Private::update), true),
500
);
}
void Memory::Private::stop_update_task() {
update_task.disconnect();
}
Memory::Memory()
: UI::Widget::Panel("/dialogs/memory", SP_VERB_HELP_MEMORY),
_private(*(new Memory::Private()))
{
_getContents()->pack_start(_private.view);
_private.update();
addResponseButton(_("Recalculate"), Gtk::RESPONSE_APPLY);
show_all_children();
signal_show().connect(sigc::mem_fun(_private, &Private::start_update_task));
signal_hide().connect(sigc::mem_fun(_private, &Private::stop_update_task));
_private.start_update_task();
}
Memory::~Memory() {
delete &_private;
}
void Memory::_apply() {
GC::Core::gcollect();
_private.update();
}
} // namespace Dialog
} // namespace UI
} // namespace Inkscape
/*
Local Variables:
mode:c++
c-file-style:"stroustrup"
c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
indent-tabs-mode:nil
fill-column:99
End:
*/
// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:fileencoding=utf-8:textwidth=99 :
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