95 lines
2.9 KiB
Python
95 lines
2.9 KiB
Python
# Copyright (c) 2009, Giampaolo Rodola'. All rights reserved.
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# Use of this source code is governed by a BSD-style license that can be
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# found in the LICENSE file.
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class Error(Exception):
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"""Base exception class. All other psutil exceptions inherit
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from this one.
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"""
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def __init__(self, msg=""):
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Exception.__init__(self, msg)
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self.msg = msg
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def __repr__(self):
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ret = "psutil.%s %s" % (self.__class__.__name__, self.msg)
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return ret.strip()
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__str__ = __repr__
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class NoSuchProcess(Error):
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"""Exception raised when a process with a certain PID doesn't
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or no longer exists.
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"""
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def __init__(self, pid, name=None, msg=None):
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Error.__init__(self, msg)
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self.pid = pid
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self.name = name
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self.msg = msg
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if msg is None:
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if name:
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details = "(pid=%s, name=%s)" % (self.pid, repr(self.name))
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else:
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details = "(pid=%s)" % self.pid
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self.msg = "process no longer exists " + details
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class ZombieProcess(NoSuchProcess):
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"""Exception raised when querying a zombie process. This is
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raised on macOS, BSD and Solaris only, and not always: depending
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on the query the OS may be able to succeed anyway.
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On Linux all zombie processes are querable (hence this is never
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raised). Windows doesn't have zombie processes.
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"""
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def __init__(self, pid, name=None, ppid=None, msg=None):
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NoSuchProcess.__init__(self, msg)
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self.pid = pid
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self.ppid = ppid
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self.name = name
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self.msg = msg
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if msg is None:
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args = ["pid=%s" % pid]
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if name:
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args.append("name=%s" % repr(self.name))
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if ppid:
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args.append("ppid=%s" % self.ppid)
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details = "(%s)" % ", ".join(args)
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self.msg = "process still exists but it's a zombie " + details
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class AccessDenied(Error):
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"""Exception raised when permission to perform an action is denied."""
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def __init__(self, pid=None, name=None, msg=None):
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Error.__init__(self, msg)
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self.pid = pid
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self.name = name
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self.msg = msg
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if msg is None:
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if (pid is not None) and (name is not None):
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self.msg = "(pid=%s, name=%s)" % (pid, repr(name))
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elif (pid is not None):
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self.msg = "(pid=%s)" % self.pid
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else:
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self.msg = ""
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class TimeoutExpired(Error):
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"""Raised on Process.wait(timeout) if timeout expires and process
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is still alive.
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"""
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def __init__(self, seconds, pid=None, name=None):
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Error.__init__(self, "timeout after %s seconds" % seconds)
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self.seconds = seconds
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self.pid = pid
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self.name = name
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if (pid is not None) and (name is not None):
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self.msg += " (pid=%s, name=%s)" % (pid, repr(name))
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elif (pid is not None):
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self.msg += " (pid=%s)" % self.pid
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