def __init__(self, mem):
super(XP2, self).__init__()
self.mem = mem
self.last_alloc = None
ctrl_panel = QGridLayout()
proc_name_label = QLabel(u'进程名')
self.proc_name_le = QLineEdit()
proc_name_label.setBuddy(self.proc_name_le)
size_label = QLabel(u'大小 (kB)')
self.size_le = QLineEdit()
size_label.setBuddy(self.size_le)
self.add_button = QPushButton(u'添加')
self.add_button.setSizePolicy(QSizePolicy.Preferred,
QSizePolicy.Preferred)
self.connect(self.add_button, SIGNAL('clicked()'), self.add_process)
ctrl_panel.addWidget(proc_name_label, 0, 0)
ctrl_panel.addWidget(self.proc_name_le, 0, 1)
ctrl_panel.addWidget(size_label, 1, 0)
ctrl_panel.addWidget(self.size_le, 1, 1)
ctrl_panel.addWidget(self.add_button, 0, 3, 2, 1)
self.process_model = ProcessModel(self)
self.proc_list_view = QTreeView()
self.proc_list_view.setModel(self.process_model)
self.proc_list_view.setRootIsDecorated(False)
self.proc_list_view.setItemsExpandable(False)
self.page_table_models = defaultdict(lambda: PageTableModel(self))
self.page_table_view = QTreeView()
self.page_table_view.setModel(self.page_table_models[None])
self.page_table_view.setRootIsDecorated(False)
self.page_table_view.setItemsExpandable(False)
self.page_table_view.setSelectionMode(QAbstractItemView.ExtendedSelection)
bit_map_dialog = QDialog(self)
_l = QHBoxLayout()
self.bit_map_view = QTableView()
self.bit_map_model = BitmapModel(self)
self.bit_map_view.setModel(self.bit_map_model)
self.bit_map_view.resizeColumnsToContents()
_l.addWidget(self.bit_map_view)
bit_map_dialog.setLayout(_l)
bit_map_dialog.resize(220, 295)
bit_map_dialog.show()
self.connect(self.proc_list_view, SIGNAL('clicked(QModelIndex)'),
self.switch_page_table_model)
self.connect(self.proc_list_view, SIGNAL('activated(QModelIndex)'),
self.switch_page_table_model)
self.release_button = QPushButton(u'释放')
self.connect(self.release_button, SIGNAL('clicked()'),
self.release_pages)
v_box = QVBoxLayout()
v_box.addWidget(self.proc_list_view)
v_box.addLayout(ctrl_panel)
v_box.addWidget(self.page_table_view)
v_box.addWidget(self.release_button)
self.setLayout(v_box)
class XP2(QDialog, object):
def __init__(self, mem):
super(XP2, self).__init__()
self.mem = mem
self.last_alloc = None
ctrl_panel = QGridLayout()
proc_name_label = QLabel(u'进程名')
self.proc_name_le = QLineEdit()
proc_name_label.setBuddy(self.proc_name_le)
size_label = QLabel(u'大小 (kB)')
self.size_le = QLineEdit()
size_label.setBuddy(self.size_le)
self.add_button = QPushButton(u'添加')
self.add_button.setSizePolicy(QSizePolicy.Preferred,
QSizePolicy.Preferred)
self.connect(self.add_button, SIGNAL('clicked()'), self.add_process)
ctrl_panel.addWidget(proc_name_label, 0, 0)
ctrl_panel.addWidget(self.proc_name_le, 0, 1)
ctrl_panel.addWidget(size_label, 1, 0)
ctrl_panel.addWidget(self.size_le, 1, 1)
ctrl_panel.addWidget(self.add_button, 0, 3, 2, 1)
self.process_model = ProcessModel(self)
self.proc_list_view = QTreeView()
self.proc_list_view.setModel(self.process_model)
self.proc_list_view.setRootIsDecorated(False)
self.proc_list_view.setItemsExpandable(False)
self.page_table_models = defaultdict(lambda: PageTableModel(self))
self.page_table_view = QTreeView()
self.page_table_view.setModel(self.page_table_models[None])
self.page_table_view.setRootIsDecorated(False)
self.page_table_view.setItemsExpandable(False)
self.page_table_view.setSelectionMode(QAbstractItemView.ExtendedSelection)
bit_map_dialog = QDialog(self)
_l = QHBoxLayout()
self.bit_map_view = QTableView()
self.bit_map_model = BitmapModel(self)
self.bit_map_view.setModel(self.bit_map_model)
self.bit_map_view.resizeColumnsToContents()
_l.addWidget(self.bit_map_view)
bit_map_dialog.setLayout(_l)
bit_map_dialog.resize(220, 295)
bit_map_dialog.show()
self.connect(self.proc_list_view, SIGNAL('clicked(QModelIndex)'),
self.switch_page_table_model)
self.connect(self.proc_list_view, SIGNAL('activated(QModelIndex)'),
self.switch_page_table_model)
self.release_button = QPushButton(u'释放')
self.connect(self.release_button, SIGNAL('clicked()'),
self.release_pages)
v_box = QVBoxLayout()
v_box.addWidget(self.proc_list_view)
v_box.addLayout(ctrl_panel)
v_box.addWidget(self.page_table_view)
v_box.addWidget(self.release_button)
self.setLayout(v_box)
def add_process(self):
proc_name = unicode(self.proc_name_le.text())
if not proc_name:
return
else:
self.proc_name_le.setText('')
size = int(self.size_le.text())
if not size:
return
else:
self.size_le.setText('')
self.bit_map_model.save()
blocks = self.mem.allocate(size)
if blocks:
self.bit_map_model.refresh()
page_table_model = self.page_table_models[proc_name]
page_table_model.register(blocks)
self.page_table_view.setModel(page_table_model)
self.current_proc_name = proc_name
self.refresh_alloc_size(proc_name)
def refresh_alloc_size(self, proc_name):
self.last_alloc = proc_name
page_table_model = self.page_table_models[proc_name]
removed = self.process_model.update(proc_name,
len(page_table_model._page_table.table)
* self.mem.page_size)
if removed:
self.current_proc_name = None
def switch_page_table_model(self, index):
proc_name = self.process_model.data(index, role=Qt.UserRole)
self.current_proc_name = proc_name
self.page_table_view.setModel(self.page_table_models[proc_name])
def release_pages(self):
page_table_model = self.page_table_view.model()
indices = self.page_table_view.selectedIndexes()
if not indices:
indices = [page_table_model.index(row, 0)
for row in
range(len(page_table_model._page_table.table))]
pages = [idx.data().toPyObject() for idx in indices
if idx.column() == 0]
self.bit_map_model.save()
self.bit_map_model.refresh()
page_table_model.release(pages)
self.page_table_view.clearSelection()
proc_selected_idx = self.proc_list_view.selectedIndexes()
if proc_selected_idx:
self.switch_page_table_model(proc_selected_idx[0])
current_proc_name = unicode(proc_selected_idx[0].data().toPyObject())\
if proc_selected_idx else self.current_proc_name
if current_proc_name:
self.refresh_alloc_size(current_proc_name)