mbed-os

Fork of mbed-os by erkin yucel

Committer:
xuaner
Date:
Thu Jul 20 14:26:57 2017 +0000
Revision:
1:3deb71413561
Parent:
0:f269e3021894
mbed_os

Who changed what in which revision?

UserRevisionLine numberNew contents of line
elessair 0:f269e3021894 1 1 Introduction
elessair 0:f269e3021894 2
elessair 0:f269e3021894 3 This document describes some guidelines for people participating
elessair 0:f269e3021894 4 in lwIP development.
elessair 0:f269e3021894 5
elessair 0:f269e3021894 6 2 How to contribute to lwIP
elessair 0:f269e3021894 7
elessair 0:f269e3021894 8 Here is a short list of suggestions to anybody working with lwIP and
elessair 0:f269e3021894 9 trying to contribute bug reports, fixes, enhancements, platform ports etc.
elessair 0:f269e3021894 10 First of all as you may already know lwIP is a volunteer project so feedback
elessair 0:f269e3021894 11 to fixes or questions might often come late. Hopefully the bug and patch tracking
elessair 0:f269e3021894 12 features of Savannah help us not lose users' input.
elessair 0:f269e3021894 13
elessair 0:f269e3021894 14 2.1 Source code style:
elessair 0:f269e3021894 15
elessair 0:f269e3021894 16 1. do not use tabs.
elessair 0:f269e3021894 17 2. indentation is two spaces per level (i.e. per tab).
elessair 0:f269e3021894 18 3. end debug messages with a trailing newline (\n).
elessair 0:f269e3021894 19 4. one space between keyword and opening bracket.
elessair 0:f269e3021894 20 5. no space between function and opening bracket.
elessair 0:f269e3021894 21 6. one space and no newline before opening curly braces of a block.
elessair 0:f269e3021894 22 7. closing curly brace on a single line.
elessair 0:f269e3021894 23 8. spaces surrounding assignment and comparisons.
elessair 0:f269e3021894 24 9. don't initialize static and/or global variables to zero, the compiler takes care of that.
elessair 0:f269e3021894 25 10. use current source code style as further reference.
elessair 0:f269e3021894 26
elessair 0:f269e3021894 27 2.2 Source code documentation style:
elessair 0:f269e3021894 28
elessair 0:f269e3021894 29 1. JavaDoc compliant and Doxygen compatible.
elessair 0:f269e3021894 30 2. Function documentation above functions in .c files, not .h files.
elessair 0:f269e3021894 31 (This forces you to synchronize documentation and implementation.)
elessair 0:f269e3021894 32 3. Use current documentation style as further reference.
elessair 0:f269e3021894 33
elessair 0:f269e3021894 34 2.3 Bug reports and patches:
elessair 0:f269e3021894 35
elessair 0:f269e3021894 36 1. Make sure you are reporting bugs or send patches against the latest
elessair 0:f269e3021894 37 sources. (From the latest release and/or the current Git sources.)
elessair 0:f269e3021894 38 2. If you think you found a bug make sure it's not already filed in the
elessair 0:f269e3021894 39 bugtracker at Savannah.
elessair 0:f269e3021894 40 3. If you have a fix put the patch on Savannah. If it is a patch that affects
elessair 0:f269e3021894 41 both core and arch specific stuff please separate them so that the core can
elessair 0:f269e3021894 42 be applied separately while leaving the other patch 'open'. The prefered way
elessair 0:f269e3021894 43 is to NOT touch archs you can't test and let maintainers take care of them.
elessair 0:f269e3021894 44 This is a good way to see if they are used at all - the same goes for unix
elessair 0:f269e3021894 45 netifs except tapif.
elessair 0:f269e3021894 46 4. Do not file a bug and post a fix to it to the patch area. Either a bug report
elessair 0:f269e3021894 47 or a patch will be enough.
elessair 0:f269e3021894 48 If you correct an existing bug then attach the patch to the bug rather than creating a new entry in the patch area.
elessair 0:f269e3021894 49 5. Patches should be specific to a single change or to related changes. Do not mix bugfixes with spelling and other
elessair 0:f269e3021894 50 trivial fixes unless the bugfix is trivial too. Do not reorganize code and rename identifiers in the same patch you
elessair 0:f269e3021894 51 change behaviour if not necessary. A patch is easier to read and understand if it's to the point and short than
elessair 0:f269e3021894 52 if it's not to the point and long :) so the chances for it to be applied are greater.
elessair 0:f269e3021894 53
elessair 0:f269e3021894 54 2.4 Platform porters:
elessair 0:f269e3021894 55
elessair 0:f269e3021894 56 1. If you have ported lwIP to a platform (an OS, a uC/processor or a combination of these) and
elessair 0:f269e3021894 57 you think it could benefit others[1] you might want discuss this on the mailing list. You
elessair 0:f269e3021894 58 can also ask for Git access to submit and maintain your port in the contrib Git module.