The Tor Browser: python/psutil/psutil/

     1 #!/usr/bin/env python

     3 # Copyright (c) 2009, Giampaolo Rodola'. All rights reserved.

     4 # Use of this source code is governed by a BSD-style license that can be

     5 # found in the LICENSE file.

     7 """psutil exception classes.

     8 Not supposed to be used / imported directly.

     9 Instead use psutil.NoSuchProcess, etc.

    10 """

    13 class Error(Exception):

    14     """Base exception class. All other psutil exceptions inherit

    15     from this one.

    16     """

    18 class NoSuchProcess(Error):

    19     """Exception raised when a process with a certain PID doesn't

    20     or no longer exists (zombie).

    21     """

    23     def __init__(self, pid, name=None, msg=None):

    24         self.pid = pid

    25         self.name = name

    26         self.msg = msg

    27         if msg is None:

    28             if name:

    29                 details = "(pid=%s, name=%s)" % (self.pid, repr(self.name))

    30             else:

    31                 details = "(pid=%s)" % self.pid

    32             self.msg = "process no longer exists " + details

    34     def __str__(self):

    35         return self.msg

    38 class AccessDenied(Error):

    39     """Exception raised when permission to perform an action is denied."""

    41     def __init__(self, pid=None, name=None, msg=None):

    42         self.pid = pid

    43         self.name = name

    44         self.msg = msg

    45         if msg is None:

    46             if (pid is not None) and (name is not None):

    47                 self.msg = "(pid=%s, name=%s)" % (pid, repr(name))

    48             elif (pid is not None):

    49                 self.msg = "(pid=%s)" % self.pid

    50             else:

    51                 self.msg = ""

    53     def __str__(self):

    54         return self.msg

    57 class TimeoutExpired(Error):

    58     """Raised on Process.wait(timeout) if timeout expires and process

    59     is still alive.

    60     """

    62     def __init__(self, pid=None, name=None):

    63         self.pid = pid

    64         self.name = name

    65         if (pid is not None) and (name is not None):

    66             self.msg = "(pid=%s, name=%s)" % (pid, repr(name))

    67         elif (pid is not None):

    68             self.msg = "(pid=%s)" % self.pid

    69         else:

    70             self.msg = ""

    72     def __str__(self):

    73         return self.msg

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