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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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498 lines
14 KiB
Python
498 lines
14 KiB
Python
# -*- coding: utf-8; mode: python; -*-
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#
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# GStreamer Debug Viewer - View and analyze GStreamer debug log files
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#
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# Copyright (C) 2007 René Stadler <mail@renestadler.de>
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#
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# This program is free software; you can redistribute it and/or modify it
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# under the terms of the GNU General Public License as published by the Free
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# Software Foundation; either version 3 of the License, or (at your option)
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# any later version.
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#
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# This program is distributed in the hope that it will be useful, but WITHOUT
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# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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# FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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# more details.
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#
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# You should have received a copy of the GNU General Public License along with
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# this program. If not, see <http://www.gnu.org/licenses/>.
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"""GStreamer Debug Viewer GUI module."""
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from array import array
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from bisect import bisect_left
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import logging
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from gi.repository import GObject
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from gi.repository import Gtk
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from GstDebugViewer import Common, Data
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class LogModelBase (Common.GUI.GenericTreeModel, metaclass=Common.GUI.MetaModel):
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columns = ("COL_TIME", GObject.TYPE_UINT64,
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"COL_PID", int,
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"COL_THREAD", GObject.TYPE_UINT64,
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"COL_LEVEL", object,
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"COL_CATEGORY", str,
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"COL_FILENAME", str,
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"COL_LINE_NUMBER", int,
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"COL_FUNCTION", str,
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"COL_OBJECT", str,
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"COL_MESSAGE", str,)
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def __init__(self):
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Common.GUI.GenericTreeModel.__init__(self)
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# self.props.leak_references = False
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self.line_offsets = array("I")
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self.line_levels = [] # FIXME: Not so nice!
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self.line_cache = {}
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def ensure_cached(self, line_offset):
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raise NotImplementedError("derived classes must override this method")
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def access_offset(self, offset):
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raise NotImplementedError("derived classes must override this method")
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def iter_rows_offset(self):
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ensure_cached = self.ensure_cached
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line_cache = self.line_cache
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line_levels = self.line_levels
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COL_LEVEL = self.COL_LEVEL
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COL_MESSAGE = self.COL_MESSAGE
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access_offset = self.access_offset
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for i, offset in enumerate(self.line_offsets):
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ensure_cached(offset)
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row = line_cache[offset]
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# adjust special rows
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row[COL_LEVEL] = line_levels[i]
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msg_offset = row[COL_MESSAGE]
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row[COL_MESSAGE] = access_offset(offset + msg_offset)
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yield (row, offset,)
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row[COL_MESSAGE] = msg_offset
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def on_get_flags(self):
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flags = Gtk.TreeModelFlags.LIST_ONLY | Gtk.TreeModelFlags.ITERS_PERSIST
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return flags
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def on_get_n_columns(self):
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return len(self.column_types)
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def on_get_column_type(self, col_id):
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return self.column_types[col_id]
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def on_get_iter(self, path):
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if not path:
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return
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if len(path) > 1:
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# Flat model.
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return None
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line_index = path[0]
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if line_index > len(self.line_offsets) - 1:
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return None
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return line_index
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def on_get_path(self, rowref):
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line_index = rowref
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return (line_index,)
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def on_get_value(self, line_index, col_id):
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last_index = len(self.line_offsets) - 1
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if line_index > last_index:
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return None
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if col_id == self.COL_LEVEL:
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return self.line_levels[line_index]
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line_offset = self.line_offsets[line_index]
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self.ensure_cached(line_offset)
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value = self.line_cache[line_offset][col_id]
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if col_id == self.COL_MESSAGE:
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# strip whitespace + newline
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value = self.access_offset(line_offset + value).strip()
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elif col_id in (self.COL_TIME, self.COL_THREAD):
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value = GObject.Value(GObject.TYPE_UINT64, value)
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return value
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def get_value_range(self, col_id, start, stop):
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if col_id != self.COL_LEVEL:
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raise NotImplementedError("XXX FIXME")
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return self.line_levels[start:stop]
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def on_iter_next(self, line_index):
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last_index = len(self.line_offsets) - 1
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if line_index >= last_index:
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return None
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else:
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return line_index + 1
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def on_iter_children(self, parent):
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return self.on_iter_nth_child(parent, 0)
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def on_iter_has_child(self, rowref):
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return False
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def on_iter_n_children(self, rowref):
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if rowref is not None:
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return 0
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return len(self.line_offsets)
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def on_iter_nth_child(self, parent, n):
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last_index = len(self.line_offsets) - 1
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if parent or n > last_index:
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return None
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return n
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def on_iter_parent(self, child):
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return None
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# def on_ref_node (self, rowref):
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# pass
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# def on_unref_node (self, rowref):
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# pass
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class LazyLogModel (LogModelBase):
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def __init__(self, log_obj=None):
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LogModelBase.__init__(self)
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self.__log_obj = log_obj
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if log_obj:
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self.set_log(log_obj)
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def set_log(self, log_obj):
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self.__fileobj = log_obj.fileobj
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self.line_cache.clear()
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self.line_offsets = log_obj.line_cache.offsets
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self.line_levels = log_obj.line_cache.levels
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def access_offset(self, offset):
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# TODO: Implement using one slice access instead of seek+readline.
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self.__fileobj.seek(offset)
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return self.__fileobj.readline()
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def ensure_cached(self, line_offset):
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if line_offset in self.line_cache:
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return
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if len(self.line_cache) > 10000:
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self.line_cache.clear()
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self.__fileobj.seek(line_offset)
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line = self.__fileobj.readline()
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self.line_cache[line_offset] = Data.LogLine.parse_full(line)
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class FilteredLogModelBase (LogModelBase):
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def __init__(self, super_model):
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LogModelBase.__init__(self)
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self.logger = logging.getLogger("filter-model-base")
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self.super_model = super_model
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self.access_offset = super_model.access_offset
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self.ensure_cached = super_model.ensure_cached
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self.line_cache = super_model.line_cache
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def line_index_to_super(self, line_index):
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raise NotImplementedError("index conversion not supported")
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def line_index_from_super(self, super_line_index):
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raise NotImplementedError("index conversion not supported")
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class FilteredLogModel (FilteredLogModelBase):
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def __init__(self, super_model):
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FilteredLogModelBase.__init__(self, super_model)
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self.logger = logging.getLogger("filtered-log-model")
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self.filters = []
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self.reset()
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self.__active_process = None
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self.__filter_progress = 0.
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def reset(self):
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self.logger.debug("reset filter")
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self.line_offsets = self.super_model.line_offsets
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self.line_levels = self.super_model.line_levels
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self.super_index = range(len(self.line_offsets))
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del self.filters[:]
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def __filter_process(self, filter):
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YIELD_LIMIT = 10000
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self.logger.debug("preparing new filter")
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new_line_offsets = array("I")
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new_line_levels = []
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new_super_index = array("I")
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level_id = self.COL_LEVEL
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func = filter.filter_func
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def enum():
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i = 0
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for row, offset in self.iter_rows_offset():
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line_index = self.super_index[i]
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yield (line_index, row, offset,)
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i += 1
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self.logger.debug("running filter")
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progress = 0.
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progress_full = float(len(self))
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y = YIELD_LIMIT
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for i, row, offset in enum():
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if func(row):
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new_line_offsets.append(offset)
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new_line_levels.append(row[level_id])
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new_super_index.append(i)
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y -= 1
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if y == 0:
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progress += float(YIELD_LIMIT)
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self.__filter_progress = progress / progress_full
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y = YIELD_LIMIT
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yield True
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self.line_offsets = new_line_offsets
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self.line_levels = new_line_levels
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self.super_index = new_super_index
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self.logger.debug("filtering finished")
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self.__filter_progress = 1.
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self.__handle_filter_process_finished()
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yield False
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def add_filter(self, filter, dispatcher):
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if self.__active_process is not None:
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raise ValueError("dispatched a filter process already")
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self.logger.debug("adding filter")
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self.filters.append(filter)
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self.__dispatcher = dispatcher
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self.__active_process = self.__filter_process(filter)
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dispatcher(self.__active_process)
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def abort_process(self):
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if self.__active_process is None:
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raise ValueError("no filter process running")
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self.__dispatcher.cancel()
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self.__active_process = None
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self.__dispatcher = None
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del self.filters[-1]
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def get_filter_progress(self):
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if self.__active_process is None:
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raise ValueError("no filter process running")
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return self.__filter_progress
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def __handle_filter_process_finished(self):
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self.__active_process = None
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self.handle_process_finished()
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def handle_process_finished(self):
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pass
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def line_index_from_super(self, super_line_index):
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return bisect_left(self.super_index, super_line_index)
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def line_index_to_super(self, line_index):
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return self.super_index[line_index]
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def set_range(self, super_start, super_stop):
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old_super_start = self.line_index_to_super(0)
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old_super_stop = self.line_index_to_super(
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len(self.super_index) - 1) + 1
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self.logger.debug("set range (%i, %i), current (%i, %i)",
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super_start, super_stop, old_super_start, old_super_stop)
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if len(self.filters) == 0:
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# Identity.
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self.super_index = range(super_start, super_stop)
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self.line_offsets = SubRange(self.super_model.line_offsets,
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super_start, super_stop)
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self.line_levels = SubRange(self.super_model.line_levels,
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super_start, super_stop)
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return
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if super_start < old_super_start:
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# TODO:
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raise NotImplementedError("Only handling further restriction of the range"
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" (start offset = %i)" % (super_start,))
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if super_stop > old_super_stop:
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# TODO:
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raise NotImplementedError("Only handling further restriction of the range"
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" (end offset = %i)" % (super_stop,))
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start = self.line_index_from_super(super_start)
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stop = self.line_index_from_super(super_stop)
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self.super_index = SubRange(self.super_index, start, stop)
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self.line_offsets = SubRange(self.line_offsets, start, stop)
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self.line_levels = SubRange(self.line_levels, start, stop)
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class SubRange (object):
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__slots__ = ("size", "start", "stop",)
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def __init__(self, size, start, stop):
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if start > stop:
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raise ValueError(
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"need start <= stop (got %r, %r)" % (start, stop,))
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if isinstance(size, type(self)):
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# Another SubRange, don't stack:
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start += size.start
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stop += size.start
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size = size.size
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self.size = size
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self.start = start
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self.stop = stop
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def __getitem__(self, i):
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if isinstance(i, slice):
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stop = i.stop
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if stop >= 0:
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stop += self.start
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else:
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stop += self.stop
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return self.size[i.start + self.start:stop]
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else:
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return self.size[i + self.start]
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def __len__(self):
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return self.stop - self.start
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def __iter__(self):
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size = self.size
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for i in range(self.start, self.stop):
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yield size[i]
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class LineViewLogModel (FilteredLogModelBase):
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def __init__(self, super_model):
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FilteredLogModelBase.__init__(self, super_model)
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self.line_offsets = []
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self.line_levels = []
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self.parent_indices = []
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def reset(self):
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del self.line_offsets[:]
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del self.line_levels[:]
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def line_index_to_super(self, line_index):
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return self.parent_indices[line_index]
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def insert_line(self, position, super_line_index):
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if position == -1:
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position = len(self.line_offsets)
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li = super_line_index
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self.line_offsets.insert(position, self.super_model.line_offsets[li])
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self.line_levels.insert(position, self.super_model.line_levels[li])
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self.parent_indices.insert(position, super_line_index)
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path = (position,)
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tree_iter = self.get_iter(path)
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self.row_inserted(path, tree_iter)
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def replace_line(self, line_index, super_line_index):
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li = line_index
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self.line_offsets[li] = self.super_model.line_offsets[super_line_index]
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self.line_levels[li] = self.super_model.line_levels[super_line_index]
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self.parent_indices[li] = super_line_index
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path = (line_index,)
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tree_iter = self.get_iter(path)
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self.row_changed(path, tree_iter)
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def remove_line(self, line_index):
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for l in (self.line_offsets,
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self.line_levels,
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self.parent_indices,):
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del l[line_index]
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path = (line_index,)
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self.row_deleted(path)
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