bitbake/method pool:

	Create a common implementation of the global
	method handling. It will be shared by the parsers
	and the cache.
	This commit breaks the cache again 

1 files changed, 81 insertions, 0 deletions

diff --git a/lib/bb/methodpool.py b/lib/bb/methodpool.py
new file mode 100644
index 000000000..27bc4be0e
--- /dev/null
+++ b/lib/bb/methodpool.py
@@ -0,0 +1,81 @@
+# ex:ts=4:sw=4:sts=4:et
+# -*- tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*-
+#
+#
+# Copyright (C)       2006 Holger Hans Peter Freyther
+# 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 Holger Hans Peter Freyther 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 OWNER 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.
+
+
+"""
+    What is a method pool?
+
+    BitBake has a global method scope where .bb, .inc and .bbclass
+    files can install methods. These methods are parsed from strings.
+    To avoid recompiling and executing these string we introduce
+    a method pool to do this task.
+
+    This pool will be used to compile and execute the functions. It
+    will be smart enough to 
+"""
+
+from bb.utils import better_compile, better_exec
+
+# A dict of modules we have handled
+# it is the number of .bbclasses + x in size
+_parsed_methods = { }
+
+def insert_method(modulename, code, fn):
+    """
+    Add code of a module should be added. The methods
+    will be simply added, no checking will be done
+    """
+    comp = better_compile(code, "<bb>", fn )
+    better_exec(comp, __builtins__, code, fn)
+
+def check_insert_method(modulename, code, fn):
+    """
+    Add the code if it wasnt added before. The module
+    name will be used for that 
+    """
+    if not modulename in _parsed_methods:
+        return insert_method(modulename, code)
+
+def parsed_module(modulename):
+    """
+    Inform me file xyz was parsed
+    """
+    return modulename in _parsed_methods
+
+
+def get_parsed_dict():
+    """
+    shortcut
+    """
+    return _parsed_methods