-# The MIT License (MIT)
+# SPDX-License-Identifier: MIT
#
# Copyright (c) 2017 Philippe Proulx <pproulx@efficios.com>
-#
-# Permission is hereby granted, free of charge, to any person obtaining a copy
-# of this software and associated documentation files (the "Software"), to deal
-# in the Software without restriction, including without limitation the rights
-# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-# copies of the Software, and to permit persons to whom the Software is
-# furnished to do so, subject to the following conditions:
-#
-# The above copyright notice and this permission notice shall be included in
-# all copies or substantial portions of the Software.
-#
-# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-# THE SOFTWARE.
-
-import bt2
-import bt2.logging
+
+
+from bt2 import error as bt2_error
+from bt2 import logging as bt2_logging
from bt2 import native_bt
+class UnknownObject(Exception):
+ """
+ Raised when a component class handles a query for an object it doesn't
+ know about.
+ """
+
+ pass
+
+
+class _OverflowError(bt2_error._Error, OverflowError):
+ pass
+
+
+class TryAgain(Exception):
+ pass
+
+
+class Stop(StopIteration):
+ pass
+
+
def _check_bool(o):
if not isinstance(o, bool):
raise TypeError("'{}' is not a 'bool' object".format(o.__class__.__name__))
def _is_in_int64_range(v):
assert isinstance(v, int)
- return v >= -(2 ** 63) and v <= (2 ** 63 - 1)
+ return v >= -(2**63) and v <= (2**63 - 1)
def _is_int64(v):
def _is_in_uint64_range(v):
assert isinstance(v, int)
- return v >= 0 and v <= (2 ** 64 - 1)
+ return v >= 0 and v <= (2**64 - 1)
def _is_uint64(v):
if not _is_in_int64_range(v):
if msg is None:
- msg = 'expecting a signed 64-bit integral value'
+ msg = "expecting a signed 64-bit integral value"
- msg += ' (got {})'.format(v)
+ msg += " (got {})".format(v)
raise ValueError(msg)
if not _is_in_uint64_range(v):
if msg is None:
- msg = 'expecting an unsigned 64-bit integral value'
+ msg = "expecting an unsigned 64-bit integral value"
- msg += ' (got {})'.format(v)
+ msg += " (got {})".format(v)
raise ValueError(msg)
_check_uint64(a)
if not _is_pow2(a):
- raise ValueError('{} is not a power of two'.format(a))
+ raise ValueError("{} is not a power of two".format(a))
def _check_log_level(log_level):
_check_int(log_level)
log_levels = (
- bt2.logging.LoggingLevel.TRACE,
- bt2.logging.LoggingLevel.DEBUG,
- bt2.logging.LoggingLevel.INFO,
- bt2.logging.LoggingLevel.WARNING,
- bt2.logging.LoggingLevel.ERROR,
- bt2.logging.LoggingLevel.FATAL,
- bt2.logging.LoggingLevel.NONE,
+ bt2_logging.LoggingLevel.TRACE,
+ bt2_logging.LoggingLevel.DEBUG,
+ bt2_logging.LoggingLevel.INFO,
+ bt2_logging.LoggingLevel.WARNING,
+ bt2_logging.LoggingLevel.ERROR,
+ bt2_logging.LoggingLevel.FATAL,
+ bt2_logging.LoggingLevel.NONE,
)
if log_level not in log_levels:
if status == native_bt.__BT_FUNC_STATUS_ERROR:
assert msg is not None
- raise bt2.Error(msg)
+ raise bt2_error._Error(msg)
elif status == native_bt.__BT_FUNC_STATUS_MEMORY_ERROR:
assert msg is not None
- raise bt2.MemoryError(msg)
+ raise bt2_error._MemoryError(msg)
elif status == native_bt.__BT_FUNC_STATUS_END:
if msg is None:
- raise bt2.Stop
+ raise Stop
else:
- raise bt2.Stop(msg)
+ raise Stop(msg)
elif status == native_bt.__BT_FUNC_STATUS_AGAIN:
if msg is None:
- raise bt2.TryAgain
+ raise TryAgain
else:
- raise bt2.TryAgain(msg)
- elif status == native_bt.__BT_FUNC_STATUS_CANCELED:
+ raise TryAgain(msg)
+ elif status == native_bt.__BT_FUNC_STATUS_OVERFLOW_ERROR:
+ raise _OverflowError(msg)
+ elif status == native_bt.__BT_FUNC_STATUS_UNKNOWN_OBJECT:
if msg is None:
- raise bt2.Canceled
+ raise UnknownObject
else:
- raise bt2.Canceled(msg)
- elif status == native_bt.__BT_FUNC_STATUS_LOADING_ERROR:
- if msg is None:
- raise bt2.LoadingError
- else:
- raise bt2.LoadingError(msg)
- elif status == native_bt.__BT_FUNC_STATUS_OVERFLOW:
- if msg is None:
- raise bt2.OverflowError
- else:
- raise bt2.OverflowError(msg)
- elif status == native_bt.__BT_FUNC_STATUS_INVALID_OBJECT:
- if msg is None:
- raise bt2.InvalidObject
- else:
- raise bt2.InvalidObject(msg)
- elif status == native_bt.__BT_FUNC_STATUS_INVALID_PARAMS:
- if msg is None:
- raise bt2.InvalidParams
- else:
- raise bt2.InvalidParams(msg)
- elif status == native_bt.__BT_FUNC_STATUS_UNSUPPORTED:
- if msg is None:
- raise bt2.Unsupported
- else:
- raise bt2.Unsupported(msg)
+ raise UnknownObject(msg)
else:
assert False
+
+
+class _ListenerHandle:
+ def __init__(self, addr):
+ self._addr = addr
+ self._listener_id = None
+
+ def _set_listener_id(self, listener_id):
+ self._listener_id = listener_id
+
+ def _invalidate(self):
+ self._listener_id = None
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