import sys as _sys
import datetime as _datetime
-import functools as _functools
import uuid as _uuid
import traceback as _traceback
import os as _os
-from os import SEEK_SET, SEEK_CUR, SEEK_END
import logging as _logging
if _sys.version_info >= (3,):
from collections import ChainMap as _ChainMap
LOG_WARNING, LOG_NOTICE, LOG_INFO, LOG_DEBUG)
from ._journal import sendv, stream_fd
from ._reader import (_Reader, NOP, APPEND, INVALIDATE,
- LOCAL_ONLY, RUNTIME_ONLY, SYSTEM_ONLY)
+ LOCAL_ONLY, RUNTIME_ONLY, SYSTEM_ONLY,
+ _get_catalog)
from . import id128 as _id128
if _sys.version_info >= (3,):
return _datetime.timedelta(microseconds=int(s))
def _convert_realtime(t):
- return _datetime.datetime.fromtimestamp(t / 1E6)
+ return _datetime.datetime.fromtimestamp(t / 1000000)
def _convert_timestamp(s):
- return _datetime.datetime.fromtimestamp(int(s) / 1E6)
+ return _datetime.datetime.fromtimestamp(int(s) / 1000000)
if _sys.version_info >= (3,):
def _convert_uuid(s):
class Reader(_Reader):
"""Reader allows the access and filtering of systemd journal
entries. Note that in order to access the system journal, a
- non-root user must be in the `adm` group.
+ non-root user must be in the `systemd-journal` group.
Example usage to print out all informational or higher level
messages for systemd-udevd for this boot:
See systemd.journal-fields(7) for more info on typical fields
found in the journal.
"""
- def __init__(self, flags=LOCAL_ONLY, path=None, converters=None):
+ def __init__(self, flags=0, path=None, converters=None):
"""Create an instance of Reader, which allows filtering and
return of journal entries.
journal files of system services and the kernel.
Argument `path` is the directory of journal files. Note that
- currently flags are ignored when `path` is present as they are
- currently not relevant.
+ `flags` and `path` are exclusive.
Argument `converters` is a dictionary which updates the
DEFAULT_CONVERTERS to convert journal field values. Field
the conversion fails with a ValueError, unconverted bytes
object will be returned. (Note that ValueEror is a superclass
of UnicodeDecodeError).
+
+ Reader implements the context manager protocol: the journal
+ will be closed when exiting the block.
"""
super(Reader, self).__init__(flags, path)
if _sys.version_info >= (3,3):
result[key] = self._convert_field(key, value)
return result
+ def __iter__(self):
+ """Part of iterator protocol.
+ Returns self.
+ """
+ return self
+
+ if _sys.version_info >= (3,):
+ def __next__(self):
+ """Part of iterator protocol.
+ Returns self.get_next().
+ """
+ return self.get_next()
+ else:
+ def next(self):
+ """Part of iterator protocol.
+ Returns self.get_next().
+ """
+ return self.get_next()
+
def add_match(self, *args, **kwargs):
"""Add one or more matches to the filter journal log entries.
All matches of different field are combined in a logical AND,
super(Reader, self).add_match(arg)
def get_next(self, skip=1):
- """Return the next log entry as a dictionary of fields.
+ """Return the next log entry as a mapping type, currently
+ a standard dictionary of fields.
Optional skip value will return the `skip`\-th log entry.
Entries will be processed with converters specified during
Reader creation.
"""
- return self._convert_entry(
- super(Reader, self).get_next(skip))
+ if super(Reader, self)._next(skip):
+ entry = super(Reader, self)._get_all()
+ if entry:
+ entry['__REALTIME_TIMESTAMP'] = self._get_realtime()
+ entry['__MONOTONIC_TIMESTAMP'] = self._get_monotonic()
+ entry['__CURSOR'] = self._get_cursor()
+ return self._convert_entry(entry)
+ return dict()
+
+ def get_previous(self, skip=1):
+ """Return the previous log entry as a mapping type,
+ currently a standard dictionary of fields.
+
+ Optional skip value will return the -`skip`\-th log entry.
+
+ Entries will be processed with converters specified during
+ Reader creation.
+
+ Equivilent to get_next(-skip).
+ """
+ return self.get_next(-skip)
def query_unique(self, field):
"""Return unique values appearing in the journal for given `field`.
return set(self._convert_field(field, value)
for value in super(Reader, self).query_unique(field))
+ def wait(self, timeout=None):
+ """Wait for a change in the journal. `timeout` is the maximum
+ time in seconds to wait, or None, to wait forever.
+
+ Returns one of NOP (no change), APPEND (new entries have been
+ added to the end of the journal), or INVALIDATE (journal files
+ have been added or removed).
+ """
+ us = -1 if timeout is None else int(timeout * 1000000)
+ return super(Reader, self).wait(us)
+
def seek_realtime(self, realtime):
"""Seek to a matching journal entry nearest to `realtime` time.
or datetime.datetime instance.
"""
if isinstance(realtime, _datetime.datetime):
- realtime = float(realtime.strftime("%s.%f"))
- return super(Reader, self).seek_realtime(realtime)
+ realtime = float(realtime.strftime("%s.%f")) * 1000000
+ return super(Reader, self).seek_realtime(int(realtime))
def seek_monotonic(self, monotonic, bootid=None):
"""Seek to a matching journal entry nearest to `monotonic` time.
"""
if isinstance(monotonic, _datetime.timedelta):
monotonic = monotonic.totalseconds()
+ monotonic = int(monotonic * 1000000)
if isinstance(bootid, _uuid.UUID):
bootid = bootid.get_hex()
return super(Reader, self).seek_monotonic(monotonic, bootid)
self.add_match(_MACHINE_ID=machineid)
+def get_catalog(mid):
+ if isinstance(mid, _uuid.UUID):
+ mid = mid.get_hex()
+ return _get_catalog(mid)
+
def _make_line(field, value):
if isinstance(value, bytes):
return field.encode('utf-8') + b'=' + value
~ianmdlvl / elogind.git / blobdiff