cf829a5f66
This is the serious functionality change in this runqueue patch series of changes. Rather than two phases of execution, the scenequeue setscene phase, followed by normal task exeuction, this change allows them to execute in parallel together. To do this we need to handle marking of tasks as covered/uncovered in a piecemeal fashion on a task by task basis rather than in a single function. The code will block normal task exeuction until any setcene task which could cover that task is executed and its status is known. There is a slight optimisation which could be possible here at the risk of races but that doesn't seem worthwhile. The state engine isn't entirely cleaned up in this commit (see FIXME) and the setscenewhitelist functionality is broken by it (see following patches) however its good enough to test with normal workflows. (Bitbake rev: 58b3f0847cc2d47e76f74d59dcbbf78fe41b118b) Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Bitbake
BitBake is a generic task execution engine that allows shell and Python tasks to be run efficiently and in parallel while working within complex inter-task dependency constraints. One of BitBake's main users, OpenEmbedded, takes this core and builds embedded Linux software stacks using a task-oriented approach.
For information about Bitbake, see the OpenEmbedded website: http://www.openembedded.org/
Bitbake plain documentation can be found under the doc directory or its integrated html version at the Yocto Project website: http://yoctoproject.org/documentation
Contributing
Please refer to http://www.openembedded.org/wiki/How_to_submit_a_patch_to_OpenEmbedded for guidelines on how to submit patches, just note that the latter documentation is intended for OpenEmbedded (and its core) not bitbake patches (bitbake-devel@lists.openembedded.org) but in general main guidelines apply. Once the commit(s) have been created, the way to send the patch is through git-send-email. For example, to send the last commit (HEAD) on current branch, type:
git send-email -M -1 --to bitbake-devel@lists.openembedded.org
Mailing list:
http://lists.openembedded.org/mailman/listinfo/bitbake-devel
Source code:
http://git.openembedded.org/bitbake/