1 files changed, 94 insertions, 0 deletions
diff --git a/psutil/_exceptions.py b/psutil/_exceptions.py
new file mode 100644
index 00000000..c08e6d83
--- /dev/null
+++ b/psutil/_exceptions.py
@@ -0,0 +1,94 @@
+# Copyright (c) 2009, Giampaolo Rodola'. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+
+class Error(Exception):
+    """Base exception class. All other psutil exceptions inherit
+    from this one.
+    """
+
+    def __init__(self, msg=""):
+        Exception.__init__(self, msg)
+        self.msg = msg
+
+    def __repr__(self):
+        ret = "psutil.%s %s" % (self.__class__.__name__, self.msg)
+        return ret.strip()
+
+    __str__ = __repr__
+
+
+class NoSuchProcess(Error):
+    """Exception raised when a process with a certain PID doesn't
+    or no longer exists.
+    """
+
+    def __init__(self, pid, name=None, msg=None):
+        Error.__init__(self, msg)
+        self.pid = pid
+        self.name = name
+        self.msg = msg
+        if msg is None:
+            if name:
+                details = "(pid=%s, name=%s)" % (self.pid, repr(self.name))
+            else:
+                details = "(pid=%s)" % self.pid
+            self.msg = "process no longer exists " + details
+
+
+class ZombieProcess(NoSuchProcess):
+    """Exception raised when querying a zombie process. This is
+    raised on OSX, BSD and Solaris only, and not always: depending
+    on the query the OS may be able to succeed anyway.
+    On Linux all zombie processes are querable (hence this is never
+    raised). Windows doesn't have zombie processes.
+    """
+
+    def __init__(self, pid, name=None, ppid=None, msg=None):
+        NoSuchProcess.__init__(self, msg)
+        self.pid = pid
+        self.ppid = ppid
+        self.name = name
+        self.msg = msg
+        if msg is None:
+            args = ["pid=%s" % pid]
+            if name:
+                args.append("name=%s" % repr(self.name))
+            if ppid:
+                args.append("ppid=%s" % self.ppid)
+            details = "(%s)" % ", ".join(args)
+            self.msg = "process still exists but it's a zombie " + details
+
+
+class AccessDenied(Error):
+    """Exception raised when permission to perform an action is denied."""
+
+    def __init__(self, pid=None, name=None, msg=None):
+        Error.__init__(self, msg)
+        self.pid = pid
+        self.name = name
+        self.msg = msg
+        if msg is None:
+            if (pid is not None) and (name is not None):
+                self.msg = "(pid=%s, name=%s)" % (pid, repr(name))
+            elif (pid is not None):
+                self.msg = "(pid=%s)" % self.pid
+            else:
+                self.msg = ""
+
+
+class TimeoutExpired(Error):
+    """Raised on Process.wait(timeout) if timeout expires and process
+    is still alive.
+    """
+
+    def __init__(self, seconds, pid=None, name=None):
+        Error.__init__(self, "timeout after %s seconds" % seconds)
+        self.seconds = seconds
+        self.pid = pid
+        self.name = name
+        if (pid is not None) and (name is not None):
+            self.msg += " (pid=%s, name=%s)" % (pid, repr(name))
+        elif (pid is not None):
+            self.msg += " (pid=%s)" % self.pid