--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/srcanamdw/codescanner/scripts/missingcancel.py	Thu Feb 18 12:29:02 2010 +0530
@@ -0,0 +1,97 @@
+# #################################################################
+# Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
+# All rights reserved.
+# 
+# Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
+# 
+# * Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
+# * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
+# * Neither the name of Nokia Corporation nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.
+# 
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS 
+# BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
+# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.#
+#
+# missingcancel.py
+#
+# Checks : Cancel() not called in active object's destructor.
+# 
+# Reason : Cancel() should always be called in active object's 
+# destructor to cancel an outstanding request if there is one. 
+# If there is no request pending then Cancel() just does nothing, 
+# but if we do not call Cancel() when having an outstanding request 
+# a panic will be raised. CodeScanner occasionally gives false 
+# positives for this issue. Individual cases should be 
+# investigated.
+#
+# #################################################################
+
+script = CScript("missingcancel")
+script.iReString = r"""
+    ::
+    \s*        # optional whitespace
+    ~C(\w+)
+    """
+script.iFileExts = ["cpp"]
+script.iCategory = KCategoryCodingStandards
+script.iIgnore = KIgnoreCommentsAndQuotes
+script.iSeverity = KSeverityLow
+
+# possible active and timer object types
+activeObjectType = re.compile("\w+Active$")
+timerObjectType = re.compile("\w+Timer$")
+
+cancelFunction = re.compile("""
+    Cancel
+    \s*
+    \(
+    """, re.VERBOSE)
+
+def isActiveDestructor(destructorType):
+    if (activeObjectType.match(destructorType)) or (timerObjectType.match(destructorType)):
+        return True
+    return False
+
+def cancelcompare(lines, currentline, rematch, filename):
+    line = lines[currentline]
+    m = rematch.search(line)
+
+    if m:
+        destructorType = m.group(1)
+        # skip non-active types
+        if (not isActiveDestructor(destructorType)):
+            return 0
+
+        i = currentline
+
+        # find opening { in function
+        while (line.count("{") == 0):
+            i = i + 1
+            if (i >= len(lines)):
+                return 1
+            line = lines[i]
+
+        # if one-line or empty function
+        if (line.count("}") > 0):
+            if (cancelFunction.search(line)):
+                return 0
+            else:
+                return 1
+
+        i = i + 1
+        bracketDepth = 1
+        while (i < len(lines)):
+            line = lines[i]
+            if (cancelFunction.search(line)):
+                return 0
+
+            bracketDepth += line.count("{") - line.count("}")
+            if (bracketDepth == 0):
+                return 1
+            i = i + 1
+    return 0
+
+script.iCompare = cancelcompare
+scanner.AddScript(script)