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authorRichard Purdie <richard@openedhand.com>2006-05-09 15:44:08 +0000
committerRichard Purdie <richard@openedhand.com>2006-05-09 15:44:08 +0000
commit27dba1e6247ae48349aee1bce141a9eefaafaad1 (patch)
tree822235005ccbd2707f7874ad680dedc4df36760c /bitbake/lib/bb/methodpool.py
parented234aca98d0867c7b32801fc63820b19cf67df9 (diff)
downloadpoky-27dba1e6247ae48349aee1bce141a9eefaafaad1.tar.gz
Update to bitbake 1.4.2 (latest stable branch release). This includes the caching speedups
git-svn-id: https://svn.o-hand.com/repos/poky/trunk@371 311d38ba-8fff-0310-9ca6-ca027cbcb966
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1# ex:ts=4:sw=4:sts=4:et
2# -*- tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*-
3#
4#
5# Copyright (C) 2006 Holger Hans Peter Freyther
6# All rights reserved.
7#
8# Redistribution and use in source and binary forms, with or without
9# modification, are permitted provided that the following conditions are met:
10#
11# Redistributions of source code must retain the above copyright notice,
12# this list of conditions and the following disclaimer.
13#
14# Redistributions in binary form must reproduce the above copyright
15# notice, this list of conditions and the following disclaimer in the
16# documentation and/or other materials provided with the distribution.
17#
18# Neither the name Holger Hans Peter Freyther nor the names of its
19# contributors may be used to endorse or promote products derived
20# from this software without specific prior written permission.
21#
22# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
23# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
24# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
25# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
26# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
27# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
28# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
29# SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
31# STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
32# IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
33# POSSIBILITY OF SUCH DAMAGE.
34
35
36"""
37 What is a method pool?
38
39 BitBake has a global method scope where .bb, .inc and .bbclass
40 files can install methods. These methods are parsed from strings.
41 To avoid recompiling and executing these string we introduce
42 a method pool to do this task.
43
44 This pool will be used to compile and execute the functions. It
45 will be smart enough to
46"""
47
48from bb.utils import better_compile, better_exec
49from bb import error
50
51# A dict of modules we have handled
52# it is the number of .bbclasses + x in size
53_parsed_methods = { }
54_parsed_fns = { }
55
56def insert_method(modulename, code, fn):
57 """
58 Add code of a module should be added. The methods
59 will be simply added, no checking will be done
60 """
61 comp = better_compile(code, "<bb>", fn )
62 better_exec(comp, __builtins__, code, fn)
63
64 # hack hack hack XXX
65 return
66
67 # now some instrumentation
68 code = comp.co_names
69 for name in code:
70 if name in ['None', 'False']:
71 continue
72 elif name in _parsed_fns and not _parsed_fns[name] == modulename:
73 error( "Error Method already seen: %s in' %s' now in '%s'" % (name, _parsed_fns[name], modulename))
74 else:
75 _parsed_fns[name] = modulename
76
77def check_insert_method(modulename, code, fn):
78 """
79 Add the code if it wasnt added before. The module
80 name will be used for that
81
82 Variables:
83 @modulename a short name e.g. base.bbclass
84 @code The actual python code
85 @fn The filename from the outer file
86 """
87 if not modulename in _parsed_methods:
88 return insert_method(modulename, code, fn)
89
90def parsed_module(modulename):
91 """
92 Inform me file xyz was parsed
93 """
94 return modulename in _parsed_methods
95
96
97def get_parsed_dict():
98 """
99 shortcut
100 """
101 return _parsed_methods