Commit Graph

90 Commits

Author SHA1 Message Date
Aníbal Limón 509d26f95b bitbake: bb/server/process.py: ProcessEventQueue add close of _writer pipe
Call explicity close in _writer to avoid fd leakage because isn't
called on Queue.close()

[YOCTO #10873]

(Bitbake rev: 12dfac442d2d5674198485fbeb708a01d215c576)

Signed-off-by: Aníbal Limón <anibal.limon@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2017-01-23 22:38:49 +00:00
Joshua Lock 97f83e911e bitbake: bitbake: remove True option to getVar calls (take 2)
getVar() now defaults to expanding by default, thus remove the True
option from getVar() calls with a regex search and replace.

Search made with the following regex: getVar ?\(( ?[^,()]*), True\)

(a follow on patch to fix up a few recent introductions)

(Bitbake rev: f9961fd5beb31d5ab9656a5be59f7ab3effef2f0)

Signed-off-by: Joshua Lock <joshua.g.lock@intel.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2016-12-16 10:23:24 +00:00
Paul Eggleton 6688f6a115 bitbake: server/process: don't change UI process signal handler on terminate
On terminating the connection to the server, we were disabling SIGINT -
and this is executed on the UI side. I'm not sure whether the intention
here was to undo the SIGINT disabling we did in the server, and it was
just a mistake that it disabled rather than restored and it's run on the
wrong side, or whether we wanted to stop the user from breaking out of
the shutdown code - the commit message provides no clues either way.
Regardless, we do not want to permanently disable Ctrl+C here - it's
legitimate to terminate the connection to the server and then
re-establish it within the same process; at least currently, devtool
modify by virtue of using tinfoil in two separate parts of the code does
this, and the result of this disabling is that during the second tinfoil
usage we can potentially be parsing all recipes without the ability to
easily interrupt the process.

(Bitbake rev: 58c60a951229dcbd8253863fb24228d046c23f6e)

Signed-off-by: Paul Eggleton <paul.eggleton@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2016-12-14 12:25:07 +00:00
Paul Eggleton 727f332829 bitbake: server/xmlrpc: send back 503 response with correct encoding
If you send back a string here you get "TypeError: 'str' does not
support the buffer interface" errors in bitbake-cookerdaemon.log and
"IncompleteRead(0 bytes read, 22 more expected)" errors on the client
side.

(Bitbake rev: 0d659a7dfe5fb096f8aa4380320f9e2a464b3cb5)

Signed-off-by: Paul Eggleton <paul.eggleton@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2016-12-14 12:25:07 +00:00
Patrick Ohly 083365143e bitbake: cooker process: fire heartbeat event at regular time intervals
The intended usage is for recording current system statistics from
/proc in buildstats.bbclass during a build and for improving the
BB_DISKMON_DIRS implementation.

All other existing hooks are less suitable because they trigger at
unpredictable rates: too often can be handled by doing rate-limiting
in the event handler, but not often enough (for example, when there is
only one long-running task) cannot because the handler does not get
called at all.

The implementation of the new heartbeat event hooks into the cooker
process event queue. The process already wakes up every 0.1s, which is
often enough for the intentionally coarse 1s delay between
heartbeats. That value was chosen to keep the overhead low while still
being frequent enough for the intended usage.

If necessary, BB_HEARTBEAT_EVENT can be set to a float specifying
the delay in seconds between these heartbeat events.

(Bitbake rev: 7cf22ea057d28c54bd98dc1ab7a43402a29ff1f5)

Signed-off-by: Patrick Ohly <patrick.ohly@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2016-12-07 10:42:22 +00:00
Ed Bartosh 317708235b bitbake: bitbake: implement idle timeout for xmlrpc server
Idle timeout can be specified either by -T/--idle-timeout option or
by sessing BBTIMEOUT environment variable. Bitbake xmlrpc server
will unload itself when timeout exprired, i.e. when server is idle
for more than <idle timeout> seconds.

[YOCTO #5534]

(Bitbake rev: 5fa0b3a19e7d0f40790f737abeddf499d53f1f6a)

Signed-off-by: Ed Bartosh <ed.bartosh@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2016-07-21 07:48:52 +01:00
Ed Bartosh 6597ba6b43 bitbake: bitbake: xmlrpc: implement check of connection to server
Implemented check_connection function. The purpose of this function
is to check if bitbake server is accessible and functional.
To check this this function tries to connect to bitbake server and
run getVariable command.

This API is going to be used to implement autoloading of bitbake
server.

[YOCTO #5534]

(Bitbake rev: 1a18f5ceb478f766b53850451549333f655621ea)

Signed-off-by: Ed Bartosh <ed.bartosh@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2016-07-20 10:23:45 +01:00
Ed Bartosh 2448df7d11 bitbake: xmlrpc: add parameter use_builtin_types
Added use_builtin_types parameter to XMLRPCProxyServer.__init__
to fix this error:
    ERROR: Could not connect to server 0.0.0.0:37132
    : __init__() got an unexpected keyword argument 'use_builtin_types'

(Bitbake rev: ceb6e5bd33a25c45c2afe1559b9394c466db8a92)

Signed-off-by: Ed Bartosh <ed.bartosh@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2016-06-02 08:24:04 +01:00
Richard Purdie 0f2c59367a bitbake: bitbake: Convert to python 3
Various misc changes to convert bitbake to python3 which don't warrant
separation into separate commits.

(Bitbake rev: d0f904d407f57998419bd9c305ce53e5eaa36b24)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2016-06-02 08:24:02 +01:00
Richard Purdie bfc21fd9b2 bitbake: server/process: Fix missing log messages issue
Currently if the server dies, its possible that log messages are never
displayed which is particularly problematic if one of those messages
is the exception and backtrace the server died with.

Rather than having the event queue exit as soon as the server disappears,
we should pop events from the queue until its empty before exiting.

This patch tweaks that code so that even if the server is dead and we're
going to exit, we return any events left in the pipe. This makes
debugging certain failures much easier.

(Bitbake rev: 29f6ade68fb2b506a23a7eb3a00cdcffa291b362)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2016-05-14 23:05:15 +01:00
Ed Bartosh b58e5b1fb3 bitbake: bitbake: xmlrpc: set single use mode differently
Currently xmlrpc server implicitly sets itself into single use mode
when bitbake server is started with anonymous port (0) or no port is
provided in command line. In this mode bitbake shuts down xmlrpc server
after build is done. This assumption is incorrect in some cases.
For example Toaster uses bitbake in this mode and expects xmlrpc server
to stay in memory.

Till recent changes single use mode was always unset due to the bug.
When the bug was fixed it broke toaster builds as Toaster couldn't
communicate with bitbake server in single use mode.

Reimplemented logic of setting single use mode. The mode is explicity
set when --server-only command line parameter is not provided to bitbake.
It doesn't depend on the port number anymore.

[YOCTO #9275]
[YOCTO #9240]
[YOCTO #9252]

(Bitbake rev: afc0dd5c532684f6201b1e12bbf4c226ea19062d)

Signed-off-by: Ed Bartosh <ed.bartosh@linux.intel.com>
Signed-off-by: Elliot Smith <elliot.smith@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2016-03-24 12:31:50 +00:00
Lucas Dutra Nunes d53413d3a8 bitbake: server/process: Try connecting 4 times before giving up
Instead of trying one time with a timeout of 20 seconds try 4 times with
a timeout of 5 seconds, to account for a slow server start.

(Bitbake rev: 4a7fe63126dd8177baa5ad21e59e0bebeea8c596)

Signed-off-by: Lucas Dutra Nunes <ldnunes@ossystems.com.br>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2016-03-09 22:47:29 +00:00
Ed Bartosh d405f97af3 bitbake: xmlrpc: fix bug in setting XMLRPCServer.single_use
XMLRPCServer.single_use attribute was always set to False.
This caused xmlrpc server to keep running after build is done as
BitBakeServerCommands.removeClient only shuts down server if its
single_use attribute is set to True.

(Bitbake rev: 0a60b0928a0a746a60d2c2f294ff1903963c7086)

Signed-off-by: Ed Bartosh <ed.bartosh@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2016-03-09 22:45:16 +00:00
Richard Purdie 5375e6431c bitbake: bitbake: Set process names to be meaninful
This means that when you view the process tree, the processes
have meaningful names, aiding debugging:

$ pstree -p 30021
bash(30021)───KnottyUI(115579)───Cooker(115590)─┬─PRServ(115592)───{PRServ Handler}(115593)
                                                ├─Worker(115630)───bash:sleep(115631)───run.do_sleep.11(115633)───sleep(115634)
                                                └─{ProcessEQueue}(115591)

$ pstree -p 30021
bash(30021)───KnottyUI(117319)───Cooker(117330)─┬─Cooker(117335)
                                                ├─PRServ(117332)───{PRServ Handler}(117333)
                                                ├─Parser-1:2(117336)
                                                └─{ProcessEQueue}(117331)

Applies to parse threads, PR Server, cooker, the workers and execution
threads, working within the 16 character limit as best we can.

Needed to tweak the bitbake-worker magic values to tell the
workers apart.

(Bitbake rev: 539726a3b2202249a3f148d99e08909cb61902a5)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2016-01-30 11:43:56 +00:00
Ed Bartosh 773700dbc3 bitbake: xmplrpc: split connect method
Current code in connect method sets up event queue, which requires
registering UI handler. This functionality may not be needed for
some operations, e.g. for server termination.

Moved functionality of setting up event queue in from 'connect'
method to 'setupEventQueue' in BitBakeXMLRPCServerConnection class.

(Bitbake rev: 4429871da76d6bd29e023ff42740fe7daa6b40fa)

Signed-off-by: Ed Bartosh <ed.bartosh@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2016-01-06 15:27:35 +00:00
Ed Bartosh 4e0de6eca2 bitbake: uievent: add error to registerEventHandler return
Current code throws Exception("Could not register UI event handler")
if event handler can't be registered. The real reason of this is that
cooker is in busy state. Error message lacks information about this.

Added error message to the return value of registerEventHandler.
Included returned error message into the log message and exception
text.

(Bitbake rev: 07de1ca7d57dcd0cc37406feae2949da12a3fa7a)

Signed-off-by: Ed Bartosh <ed.bartosh@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2016-01-06 15:27:34 +00:00
Richard Purdie 384533bdb4 bitbake: server/process: Handle SIGTERM more gracefully
Currently if you send a SIGTERM to the bitbake UI process, the system basically
hangs if tasks are executing. This is because the server process doesn't
actually try any kind of shutdown before exiting.

This patch trys executing a stateForceShutdown command first, which is
enough to stop any active tasks before the system exits.

I also noticed that terminate can execute multiple times, once at SIGTERM
from the handler and once from the real exit. Double execution leads to
stack traces and potential hangs (writes to dead pipes), so ensure
the code only can run once.

With these fixes, bitbake much more correctly deals with SIGTERM to the
UI process.

(Bitbake rev: 1032ddddbe3241da02ebb3608a1c40f9123b9e80)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2015-09-09 14:27:55 +01:00
Richard Purdie 4b9de767f0 bitbake: event/server: Add _uiready flag to handle missing error messages
If you start and suspend a bitbake execution so the bitbake lock is held,
then try and run "bitbake -w '' X", you will see bitbake return an error exit
code but print no message about what happened at all.

The reason is that the -w option creates a "UI" which swallows the messages. The
code which handles this exit failure mode thinks a UI has printed the messages
and therefore doesn't do so.

This adds in an extra parameter to the UI registration code so that we
can figure out whether its a primary UI or not and base decisions on whether
to display information on that instead. This fixes the error shown above and
some bizarre failures on the Yocto Project Autobuilder.

[YOCTO #8239]

(Bitbake rev: d1d60a68c2de40c2984d5040d14251c1be121b0b)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2015-09-04 16:23:56 +01:00
Paul Eggleton 715d857174 bitbake: Fix default function parameter assignment to a list
With python you should not assign a list as the default value of a
function parameter - because a list is mutable, the result will be that
the first time a value is passed it will actually modify the default.
Reference:

http://docs.python-guide.org/en/latest/writing/gotchas/#mutable-default-arguments

(Bitbake rev: 7859f7388f2e3f675d0e1527cfde18625f36f637)

Signed-off-by: Paul Eggleton <paul.eggleton@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2015-08-19 18:05:44 +01:00
Richard Purdie 2ce9055e4f bitbake: server/process: Don't log BBHandledException
If we see a BBHandledException in the idle handler, the understanding
is the system handled it, printing a log and traceback is just confusing.

Therefore only print these in the cases where its an unknown/unhandled
exception.

(Bitbake rev: d88ecc2bc44dce8fd92ca3a2c0fd4124a5e464fa)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2015-06-23 11:57:58 +01:00
Richard Purdie 0467d53017 bitbake: cooker/server: Fix up 100% CPU usage at idle
The recent inotify changes are causing a 100% cpu usage issue in the
idle handlers. To avoid this, we update the idle functions to optionally
report a float value which is the delay before the function needs to be
called again. 1 second is fine for the inotify handler, in reality its
more like 0.1s due to the default idle function sleep.

This reverts performance regressions of 1.5 minutes on a kernel build
and ~5-6 minutes on a image from scratch.

(Bitbake rev: 0e0ba408c2dce14a0fabd3fdf61d8465a031495b)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2015-03-10 10:37:28 +00:00
Alexandru DAMIAN 7d9dd125f1 bitbake: xmlrpc server: delete function on errors
This patch makes sure to delete an idle function that
raises an exception for the xmlrpc server.

The counterpart functionality in the process server was
added with:

commit db50630948.
duthor: Richard Purdie <richard.purdie@linuxfoundation.org>
Date:   Wed Aug 20 22:31:06 2014 +0000

    bitbake: process: Deal with infinite looping of the server

This patch fixes

[YOCTO #7316]

(Bitbake rev: e7c9a6788d969c901fd6394416ac3936e62c4c72)

Signed-off-by: Alexandru DAMIAN <alexandru.damian@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2015-03-09 14:33:46 +00:00
Alexandru DAMIAN 8d87f7040f bitbake: xmlrpcserver: do not connect client on error
We roll back the client connection if some error happens,
like during setFeatures, as to leave the server accessible
to other clients.

(Bitbake rev: 4e4a2ee2f05f8741b2e09263e328420363975b02)

Signed-off-by: Alexandru DAMIAN <alexandru.damian@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2015-03-09 14:33:45 +00:00
Richard Purdie 793f2f2e69 bitbake: server/process: Fix select call
There was a report that bitbake -e | less would use 100% cpu when it shouldn't
really. The issue appears to be a bogus file descriptor in the select call. We
shouldn't be blocking if there is event data pending to a *reader* from server
context.

[YOCTO #7138]

(Bitbake rev: 8f166e1a0f3574ae7d1e917a8bb403b87bad15bf)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2015-01-23 11:33:54 +00:00
Richard Purdie 83ebcb1f0c bitbake: process: Ensure abnormal exits set an error level
(Bitbake rev: 8f5c1cdae1ee6ce04ae0d04d0b95bd80efbf7534)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2014-09-02 18:10:37 +01:00
Richard Purdie d33cc89e53 bitbake: process: Further improve robustness against server shutdown
Currently, if an exception occurs in an event handler, the server shuts
down but the UI simply hangs. This happens in two places, firstly waiting
for events and secondly, sending events to a server which no longer exists.

The latter does time out, the former does not. These patches improve
both code sections to check if the main server process is alive and if not,
trigger things to shut down gracefully. This avoids the timeout in the
command sending case too.

This resolves various cases where the UI would simply hang indefintely.

(Bitbake rev: ac418e1112ff5f9c3157569316902f7a27fba4b4)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2014-08-23 09:31:42 +01:00
Richard Purdie db50630948 bitbake: process: Deal with infinite looping of the server
Currently if an exception occurs, we just run the idle handler again and
again, usually looping indefintely. Chances are the exception that occurred
will keep occuring and this is not a good place to be.

This was breaking the autobuilders with gigabytes of logs.

At least improve things so the cooker shuts down gracefully when this happens.
Some trace of the original problem may still be present on the console too!

(Bitbake rev: 1f28d8d3311262427938180435b68f0a35c2b330)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2014-08-23 09:31:42 +01:00
Alexandru DAMIAN 74cd8c38aa bitbake: xmlrpc: add support for token reusing
We add support to specify a connection token in the command line
and in the environment variable BBTOKEN.

When a client registers to a bitbake server, that client
will have exclusive access to the server. The client is identified
by a server-supplied token. If a client terminates, we cannot
reconnect to the server as the token is lost.

This patch adds the capability to specify the connection token
in the command line for xmlrpc clients. This allows us
to have bitbake work as an already-authenticated
client with the server and resume sending commands to a server.

(Bitbake rev: db5390940c0afbcdc9fbcf1225761968ae51d4a7)

Signed-off-by: Alexandru DAMIAN <alexandru.damian@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2014-06-13 11:55:33 +01:00
Alexandru DAMIAN e89db137f0 bitbake: xmlrpc: client - remove fatal errors
When we use the XMLRPC client API to connect to a bitbake server,
we want to receive errors from the API instead of having the
API exiting without warning.

Thus the "bb.fatal" calls have been replaced with "bb.warn" calls,
and we re-raise the original exception for handling by the
original caller.

The bitbake starting script has been modified to properly test
for failures in calling the client API and handle them.

Additional error handling added in the client, as to prevent
fatal crashes.

(Bitbake rev: eb63f08c33644f64752aaae2146a000956ce894a)

Signed-off-by: Alexandru DAMIAN <alexandru.damian@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2014-06-06 10:32:54 +01:00
Alexandru DAMIAN a5d01e9ec7 bitbake: bitbake: move configuration reading code
The configuration reading code should live in the
main bitbake entry point, and the server modules should
be supplied with correct configuration instead of attempting
to parse from configuration files.

This patch moves the endpoint address reading from XMLRPC
to the bitbake main script.

(Bitbake rev: ac5753274ff932e1d6f073ab4dab7bd6fe5355a1)

Signed-off-by: Alexandru DAMIAN <alexandru.damian@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2014-06-06 10:32:54 +01:00
Alexandru DAMIAN f688f6b566 bitbake: bitbake: cooker: mark setFeatures command as read-only
This patch makes sure that the setFeatures command is marked
as read-only and that it can only run if the cooker is in
the initial state.

Additionally, remove logging from the XMLRPC module in favor
of sending the exception to the client for easy processing.

	[YOCTO #6089]

(Bitbake rev: f0a1a3e24757f7658d272035620465f92a3e4c3c)

Signed-off-by: Alexandru DAMIAN <alexandru.damian@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2014-04-01 12:53:26 +01:00
Richard Purdie fc49a6f00f bitbake: server/xmlrpc: Simlify featureset handling
Rather than passing featureset around various places where the data doesn't
really belong, run a command at connection time to set the appropriate
features. This is similar to what the process server does.

(Bitbake rev: c3b5cc5691291c74dd315c4439c80e0e4b2b5c1d)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2014-03-30 10:10:37 +01:00
Richard Purdie 324969e9e2 bitbake: server/process: Optimise latency when finishing idle functions
When idle functions finish, its likely we have some other work
to do, so don't sleep in the select call but instead, skip it.
This removes small amounts of latency in common commands.

(Bitbake rev: 069d6538f83b607cb46c6fe21bf6c596e8b99242)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2014-03-10 11:10:02 -07:00
Richard Purdie 5dcc20b954 bitbake: server/process: Drop unnecessary exit delay
When the server exits, we no longer appear to need this delay. This
is likely due to improvements in the various exit codepaths. There
is therefore no longer any point in taking the latency hit.

(Bitbake rev: 8e75ee29ae07e13f23525c5c6045fbf6cdbe7675)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2014-03-10 11:10:01 -07:00
Richard Purdie efdc1598d2 bitbake: server/process: Use a pipe for quit events instead of Event()
Its not possible to notice the change of status of an Event() in
the select call we sleep in. It would be possible in python 3.3 but
for now use a pipe instead. This removes small latency when bitbake
commands finish since the system doesn't sit in the select call.

(Debugging these kind of issues is apparent by setting a long sleep
for the select call)

(Bitbake rev: def28239b0f0d5f1cf13214b263114a5328538b7)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2014-03-10 11:10:01 -07:00
Richard Purdie 6f3a537dda bitbake: server/process: Deal more gracefully with SIGTERM
Currently a SIGTERM to the UI process causes the UI simply to lock up.

By setting an exit flag, the waitEvent can raise a SIGINT, allowing the
UI to break out the event loop and exit. Currently this is results in a
traceback but that is more desirable than a hanging process.

(Bitbake rev: 0d12041eceeae6bba2034b04913bb13abd67bd15)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2014-03-10 11:09:59 -07:00
Richard Purdie 8fbe21845c bitbake: server/process: Use the setFeatures command on the server instead of a manger
The use of a manager in the process server causes some issues since it remains
around for the lifetime of the server even though its only used during
initialisation and the system doesn't respond well to SIGTERM events
to the extra process (and two threads) the implementation involves.

Switching to a dedicated command simplifies the server process structure.

(Bitbake rev: 74532a7cf8ccea8b85f1cda5d5bc23d2f3c72a08)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2014-03-10 11:09:59 -07:00
Jason Wessel a67fde0ab1 bitbake: bitbake.lock: Add host:port to bitbake.lock for memres server
The idea is to build on the --status-only option for bitbake and
expose a mechanism where the oe init scripts can easily switch between
memres server and the non-memres server.

In the case of the standard oe init script the following
can shut down the server:

if [ -z "$BBSERVER" ] && [ -f bitbake.lock ] ; then
    grep ":" bitbake.lock > /dev/null && BBSERVER=`cat bitbake.lock` bitbake --status-only
    if [ $? = 0 ] ; then
       echo "Shutting down bitbake memory resident server with bitbake -m"
       BBSERVER=`cat bitbake.lock` bitbake -m
    fi
fi

A similar function can be used to automatically detect if the server
is already running for the oe memres init script.  This new
functionality allows for the memres init script to be started in a new
shell and connect up to an alaready running server without seeing the
error of trying to start the server multiple times.

(Bitbake rev: b1803958de8d7c3c3279841e38604a08dc2316cc)

Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2013-12-02 17:33:14 +00:00
Jason Wessel 6ff9c9e39d bitbake: bitbake, xmlrpc.py: Implement memory resident auto port configuration/restart
This patch adds the ability to dynamically select a port for the
bitbake memory resident server when the BBSERVER port is set to -1.
This allows for running multiple instances of the bitbake memory
resident server on the same system in different build directories.

The client portion of the bitbake instance can also request that the
server automatically start when using the auto port feature.  This is
to deal with a bitbake instance that eventually times out and exits or
that has died for some unknown reason.

The new functionality allows for lazy startup of the server after
sourcing the init script for the memory resident functionality.

(Bitbake rev: d6abc07ff385357d312d8435b89e0a9c1f965433)

Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2013-12-02 11:28:27 +00:00
Richard Purdie 22d5782ef5 bitbake: xmlrpc: Show a better error message for connection failures
Showing a traceback when unable to connect to a bitbake server is
rather ugly. This change allows us to show a sensible error message.

(Bitbake rev: 26913202f83fbbecdce95da59515af102bcde4a7)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2013-10-07 09:37:34 +01:00
Alexandru DAMIAN ba83eb315d bitbake: bitbake: cooker,xmlrpc,servers: implement CookerFeatures
Implementing feature set selection that allows a client
to enable specific features in the server at connection time.

Only enabling of features is supported, as there is
no way to safely remove data loaded into the cooker.
Once enabled, a feature will remain enabled for the
life of the cooker.

Client-server connection now supports specifying the feature
set required by the client. This is implemented in the Process
server using a managed proxy list, so the server cooker
will now load dynamically needed features based on what client
connects to it.

In the XMLRPC server the feature set is requested by
using a parameter for registerUIHandler function.
This allows observer-only clients to also specify features
for the server.

The server code configuration now is completly separated
from the client code. All hardcoding of client knowledge is
removed from the server.

The extra_caches is removed as the client can now specify
the caches it needs using the feature. The UI modules
now need to specify the desired featureSet. HOB is modified
to conform to the featureSet specification.

The only feature available is CookerFeatures.HOB_EXTRA_CACHES
which forces loading the bb.cache_extra:HobRecipeInfo class.

(Bitbake rev: 98e594837aab89ea042cfa9f3740d20a661b14e2)

Signed-off-by: Alexandru DAMIAN <alexandru.damian@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2013-09-22 12:19:43 +01:00
Richard Purdie 7663a52061 bitbake: cooker: Rename confusing 'stop' state to 'forceshutdown'
The shutdown state causes the server to finish what its doing, stop was
them meant to completely stop it. It doesn't mean the server is stopped
though. Renaming the current stop event for forceshutdown gives more
meaning to what it actually does. The stopped namespace then becomes
available to indicate a completely stopped server.

(Bitbake rev: 12e9d33bfae5294e3870dfd1202f63383ad05e92)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2013-09-14 08:20:38 +01:00
Alexandru DAMIAN a392877e57 bitbake: bitbake: xmlrpc: delete unused code BitBakeUIEventServer
BitBakeUIEventServer is an unused class that pushes UI
events over a separate thread.

The current version of XMLRPC server works just fine with
the classic UI event handlers, so this class is not needed.

(Bitbake rev: 8e8e17631d790271b1be747c4b45059ec38ab606)

Signed-off-by: Alexandru DAMIAN <alexandru.damian@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2013-09-13 17:45:22 +01:00
Alexandru DAMIAN 6d9e3a1938 bitbake: server/xmlrpc: stop server on client exit
If the server only expects a single client to connect (i.e.
no bind parameter set, so there is no way for the
clients to get the server port), stop the server after
the first client exits.

(Bitbake rev: eb6bae56f62082bf147045311154cbae4bca0f4c)

Signed-off-by: Alexandru DAMIAN <alexandru.damian@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2013-09-01 15:51:11 +01:00
Richard Purdie b306d7d9a4 bitbake: server/process, server/xmlrpc, runqueue: Use select.select() on fds, not time.sleep()
The existing backend server implementations were inefficient since they
were sleeping for the full length of the timeouts rather than being woken when
there was data ready for them. It was assumed they would wake and perhaps did
when we forked processes directory but that is no longer the case.

This updates both the process and xmlrpc backends to wait using select(). This
does mean we need to pass the file descriptors to wait on from the internals
who know which these file descriptors are but this is a logical improvement.

Tests of a pathaolgical load on the process server of ~420 rapid tasks
executed on a server with BB_NUMBER_THREAD=48  went from a wall clock
measurement of the overall command execution time of 75s to a much more
reasonable 24s.

(Bitbake rev: 9bee497960889d9baa0a4284d79a384b18a8e826)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2013-09-01 15:51:10 +01:00
Richard Purdie cb939416b7 bitbake: server/xmlrpc: Increase timeout to 60s
This is a better value that the earlier infinite timeout yet still
allows for servers with high loads. It does mean the bitbake process
can hang at exit for the timeout period but that should never happen
and only happened for me in some test cases which wouldn't happen
in normal use.

(Bitbake rev: ab8d926b9bc27c58011e7db9327e031ac76ba34b)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2013-08-30 17:42:39 +01:00
Richard Purdie 69aab78dd8 bitbake: bitbake: Add ui event handlers filtering
Add functionality to allow UIs to update and change the types of events they
recieve. To do this we need to add a new command and also need to be able
to obtain the current event hander ID. In the case of xmlrpc, this is
straightforward, in the case of the process server we need to save the result
in a multiprocessing.Value() so we can retrive it. An excplit command
was added to the server API to facilitate this.

The same function can also be used to mask or unmask specific log messages,
allowing the UI to optionally differ from the standard set of message
filtering.

Based upon work by Cristiana Voicu <cristiana.voicu@intel.com>

(Bitbake rev: ba5a6c88785d9889d4172ec79937ac2a5555327e)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2013-08-26 11:29:46 +01:00
Richard Purdie bfab986ccd bitbake: server/xmlrpc/prserv: Add sane timeout to default xmlrpc server
The standard python socket connect has long timouts which make sense for remote
connections but not local things like the PR Service. This adds a timeout
parameter to the common xmlrpc server creation function and sets it to a more
reasonable 5 seconds.

Making the PR server instantly exit is a good way to test the effect of this
on bitbake.

We can remove the bodged timeout in the PRServer terminate function which
has the side effect of affecting global scope.

(Bitbake rev: 8c01cff94787abbb64fbdf0c16cd63f8f97a7e03)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2013-08-26 11:29:46 +01:00
Richard Purdie a03a423c60 bitbake: process: Improve exit handling and hangs
It turns out we have a number of different ways the process server termination can
hang. If we call cancel_join_thread() on the event queue, it means that it can be left
containing partial data. This means the reading of the event queue in the terminate()
function can hang, the timeout and block parameters to Queue.get() don't make any
difference.

Equally, if we don't call cancel_join_thread(), the join_thread in terminate()
will hang giving a different deadlock.

The best solution I could find is to loop over the process is_alive() after requesting
it stops,  trying to join the thread and if that fails, try and flush the event
queue again.

It wasn't clear what difference a force option should make in this case, we're
gracefully trying to empty queues and shut down regardless of whether its a SIGTERM
so I've simply removed the force option.

(Bitbake rev: c5c8f33ca4b81877a0115887849881001b745bf0)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2013-08-26 11:29:46 +01:00
Alexandru DAMIAN 3ea9d647ec bitbake: knotty, xmlrpc: add observer-only mode
I add an observer only mode for the knotty UI and
the XMLRPC server that will allow the UI to register
a callback with a server in order to receive events.

The observer-UI is able to send read-only commands to the
server, and also is able to register as an event handler.

Read-only commands are the commands that do not change
the state of the server and have been marked as such in
the command module.

The observer can switch to a full client if it calls addClient
at any time, and the server has no other client running.

(Bitbake rev: 4de9ee21f1fa4d04937cc7430fb1fc8b7a8f61e2)

Signed-off-by: Alexandru DAMIAN <alexandru.damian@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2013-06-17 16:09:10 +01:00