lttng-tools.git
11 years agoFix: don't steal key when adding a metadata stream
David Goulet [Tue, 4 Dec 2012 23:17:55 +0000 (18:17 -0500)] 
Fix: don't steal key when adding a metadata stream

This was causing a stream corruption of the node key if the stream->key
of the metadata was matching a stream wait_fd making the stream not
findable and asserting when getting out of the metadata poll wait.

Now we lookup the stream before adding it to make sure it's unique and
don't try to steal the key anymore since wait_fd is unique to the
consumer.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: David Goulet <dgoulet@efficios.com>
11 years agoConsumer hold mutex for add stream
Mathieu Desnoyers [Thu, 6 Dec 2012 14:20:11 +0000 (09:20 -0500)] 
Consumer hold mutex for add stream

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: David Goulet <dgoulet@ev0ke.net>
11 years agoFix: audit all close/fclose and check returned code
David Goulet [Mon, 3 Dec 2012 21:57:57 +0000 (16:57 -0500)] 
Fix: audit all close/fclose and check returned code

Signed-off-by: David Goulet <dgoulet@efficios.com>
11 years agoFix: update/clean lttng.h comments
David Goulet [Mon, 3 Dec 2012 21:43:43 +0000 (16:43 -0500)] 
Fix: update/clean lttng.h comments

Signed-off-by: David Goulet <dgoulet@efficios.com>
11 years agoFix: install lttng health check man page
David Goulet [Mon, 3 Dec 2012 21:14:31 +0000 (16:14 -0500)] 
Fix: install lttng health check man page

Signed-off-by: David Goulet <dgoulet@efficios.com>
11 years agoFix: ship relevant documentations with tarball
David Goulet [Mon, 3 Dec 2012 21:07:45 +0000 (16:07 -0500)] 
Fix: ship relevant documentations with tarball

Signed-off-by: David Goulet <dgoulet@efficios.com>
11 years agoRemove useles AUTHORS and NEWS files
David Goulet [Mon, 3 Dec 2012 21:01:09 +0000 (16:01 -0500)] 
Remove useles AUTHORS and NEWS files

Authors are in each code files associated with the copyright statement.

AUTHORS is useless and out of date. NEWS contains nothing.

Signed-off-by: David Goulet <dgoulet@efficios.com>
11 years agoFix: update urcu version in README and configure.ac
David Goulet [Mon, 3 Dec 2012 21:00:45 +0000 (16:00 -0500)] 
Fix: update urcu version in README and configure.ac

Signed-off-by: David Goulet <dgoulet@efficios.com>
11 years agoUpdate version to v2.1.0-rc9 v2.1.0-rc9
David Goulet [Mon, 3 Dec 2012 20:08:48 +0000 (15:08 -0500)] 
Update version to v2.1.0-rc9

Signed-off-by: David Goulet <dgoulet@efficios.com>
11 years agoFix: set the stream ht static in consumer file
David Goulet [Mon, 3 Dec 2012 19:15:25 +0000 (14:15 -0500)] 
Fix: set the stream ht static in consumer file

Signed-off-by: David Goulet <dgoulet@efficios.com>
11 years agoUpdate sessiond man page with new env var
David Goulet [Mon, 3 Dec 2012 18:08:25 +0000 (13:08 -0500)] 
Update sessiond man page with new env var

Signed-off-by: David Goulet <dgoulet@efficios.com>
11 years agoUpdate lttng.1 man page
David Goulet [Mon, 3 Dec 2012 17:59:03 +0000 (12:59 -0500)] 
Update lttng.1 man page

Signed-off-by: David Goulet <dgoulet@efficios.com>
11 years agoFix: enable-consumer for all domains missing dir
David Goulet [Wed, 28 Nov 2012 20:30:37 +0000 (15:30 -0500)] 
Fix: enable-consumer for all domains missing dir

So the fix here is to enable consumer for all domains if no domain is
given to the command line. This way, the session daemon can handle
correctly the trace directory path for the right domain.

Note that there is *no* switch for all domains (-a, --all) so omitting
the domain (-u or -k) automatically creates a UST and kernel session, if
none, and set the consumer for both of them. If one fails, the command
is stopped. All in all, to be sure, use a domain with the command ;).

Fixes #333

Signed-off-by: David Goulet <dgoulet@efficios.com>
11 years agoFix: Add missing fct prototypes when disabling UST
David Goulet [Wed, 28 Nov 2012 16:05:09 +0000 (11:05 -0500)] 
Fix: Add missing fct prototypes when disabling UST

Signed-off-by: David Goulet <dgoulet@efficios.com>
11 years agoFix a typo in lttng-probe-module name
Andrew Gabbasov [Wed, 28 Nov 2012 14:43:26 +0000 (08:43 -0600)] 
Fix a typo in lttng-probe-module name

Acked-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Andrew Gabbasov <andrew_gabbasov@mentor.com>
Signed-off-by: David Goulet <dgoulet@efficios.com>
11 years agoAssign values to enum lttcomm_sessiond_command
David Goulet [Tue, 27 Nov 2012 18:52:10 +0000 (13:52 -0500)] 
Assign values to enum lttcomm_sessiond_command

These command's code are part of a communication protocol so numbering
them is important.

Note that the RELAYD command should be in a seperate enum but until we
wrote the specs of the protocol with the commands value, this is fine
for now.

Fixes #397

Signed-off-by: David Goulet <dgoulet@efficios.com>
11 years agoFix: run health test only if root
David Goulet [Tue, 27 Nov 2012 18:51:45 +0000 (13:51 -0500)] 
Fix: run health test only if root

Signed-off-by: David Goulet <dgoulet@efficios.com>
11 years agoClarify empty string/NULL filter errors
Mathieu Desnoyers [Mon, 26 Nov 2012 20:58:08 +0000 (15:58 -0500)] 
Clarify empty string/NULL filter errors

Fixes #404

Reported-by: Jesus Garcia <jesus.garcia@ericsson.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: David Goulet <dgoulet@efficios.com>
12 years agoFix: add missing padding for UST filter
David Goulet [Thu, 22 Nov 2012 19:45:28 +0000 (14:45 -0500)] 
Fix: add missing padding for UST filter

Signed-off-by: David Goulet <dgoulet@efficios.com>
12 years agoUpdate version to v2.1.0-rc8 v2.1.0-rc8
David Goulet [Thu, 22 Nov 2012 19:11:15 +0000 (14:11 -0500)] 
Update version to v2.1.0-rc8

Signed-off-by: David Goulet <dgoulet@efficios.com>
12 years agoFix: Uninit. variable in lttng view
David Goulet [Thu, 22 Nov 2012 19:04:09 +0000 (14:04 -0500)] 
Fix: Uninit. variable in lttng view

Signed-off-by: David Goulet <dgoulet@efficios.com>
12 years agoAdd already enabled UST event error code
David Goulet [Thu, 22 Nov 2012 16:54:50 +0000 (11:54 -0500)] 
Add already enabled UST event error code

Return this error if the event is already enabled when found during an
enable event command.

Signed-off-by: David Goulet <dgoulet@efficios.com>
12 years agolttng.h API update: set filter becomes enable event with filter
David Goulet [Thu, 22 Nov 2012 15:22:09 +0000 (10:22 -0500)] 
lttng.h API update: set filter becomes enable event with filter

The lttng_set_event_filter() is changed to
lttng_enable_event_with_filter() taking the same arguments. The lttng UI
now only uses this call. Note that the original lttng_enable_event() is
still available but will set the filter to NULL.

This is done since now UST allows to enable the same event with
different filters or/and loglevels. So, the events are still hashed by
name but matched by the name/filter/loglevel triplet. In order to add an
event to the hash table, those three attributes are needed at the
creation time thus adding this API call which takes them all at once.

There is some fixes in the match functions and filter setting from the
previous commit that were needed to make the overlap.sh tests works.

The loglevel_match function is removed because it is now only done in
the hash table match function which will eventually get merged making a
single loglevel match call site hence this function becomes useless.

Furthermore, the filter.c/.h are no longer required since the filter is
now added at event creation and CAN NOT be set after.

Acked-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: David Goulet <dgoulet@efficios.com>
12 years agoChange the UST event hash table match function
David Goulet [Wed, 21 Nov 2012 17:28:03 +0000 (12:28 -0500)] 
Change the UST event hash table match function

The event are now matched, when looked up, with the name/filter/loglevel
triplet since the UST tracer now allows us to enable the same event with
different filters or/and loglevels.

The disable command however only takes the event name so for now it
disable all events matching that name which is why we still hash by
event name.

Acked-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: David Goulet <dgoulet@efficios.com>
12 years agoPass lttng_event struct to the set_filter API call
David Goulet [Mon, 19 Nov 2012 19:02:23 +0000 (14:02 -0500)] 
Pass lttng_event struct to the set_filter API call

This is the first commit which aims at changing the event hash table key
from the single event name to event_name/filter/loglevel triplet.

Acked-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: David Goulet <dgoulet@efficios.com>
12 years agoAdding context to an event is no longer possible
David Goulet [Tue, 20 Nov 2012 18:33:23 +0000 (13:33 -0500)] 
Adding context to an event is no longer possible

The UST tracer does not allow to add context to an event so we've
removed that.

It is completely removed from the lttng UI so it's not possible either
to add one to the kernel. The "event_name" of lttng_add_context is now
ignored.

Acked-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: David Goulet <dgoulet@efficios.com>
12 years agoAdd UST overlap tests
David Goulet [Fri, 16 Nov 2012 18:38:11 +0000 (13:38 -0500)] 
Add UST overlap tests

Tests the overlap of event names, wildcards, loglevels and filters.

Not added yet to the make check since this depends on lttng-ust 2.1 not
yet released.

Acked-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: David Goulet <dgoulet@efficios.com>
12 years agoAdd filter sequence number to UST
David Goulet [Fri, 16 Nov 2012 20:14:47 +0000 (15:14 -0500)] 
Add filter sequence number to UST

Signed-off-by: David Goulet <dgoulet@efficios.com>
12 years agoFix: Typo from a previous patch in an assert()
David Goulet [Wed, 14 Nov 2012 20:10:48 +0000 (15:10 -0500)] 
Fix: Typo from a previous patch in an assert()

Typo got in with commit: 49c336c1679295a31b92223dca05feccfe3e3464

Fixes #399

Signed-off-by: David Goulet <dgoulet@efficios.com>
12 years agoFix: Warn if session is running with lttng view
David Goulet [Wed, 14 Nov 2012 18:42:44 +0000 (13:42 -0500)] 
Fix: Warn if session is running with lttng view

Fixes #156

Signed-off-by: David Goulet <dgoulet@efficios.com>
12 years agoFix: Add bash requirement to README for make check
David Goulet [Wed, 14 Nov 2012 18:26:02 +0000 (13:26 -0500)] 
Fix: Add bash requirement to README for make check

Fixes #387

Signed-off-by: David Goulet <dgoulet@efficios.com>
12 years agoFix: add the notion of domain to lttng.1 man page
David Goulet [Wed, 14 Nov 2012 17:40:32 +0000 (12:40 -0500)] 
Fix: add the notion of domain to lttng.1 man page

Fixes #194

Signed-off-by: David Goulet <dgoulet@efficios.com>
12 years agoEnable additional kernel probes
Woegerer, Paul [Wed, 14 Nov 2012 12:55:59 +0000 (13:55 +0100)] 
Enable additional kernel probes

http://lists.lttng.org/pipermail/lttng-dev/2012-November/019046.html

Commit id in lttng-modules: b283666ff19841a28b0448c6a867beb2f809f11a

Signed-off-by: Paul Woegerer <Paul_Woegerer@mentor.com>
Signed-off-by: David Goulet <dgoulet@efficios.com>
12 years agoUpdate CodingStyle
David Goulet [Tue, 13 Nov 2012 20:32:33 +0000 (15:32 -0500)] 
Update CodingStyle

Signed-off-by: David Goulet <dgoulet@efficios.com>
12 years agoUse the new functions for default subbuf sizes
Simon Marchi [Tue, 13 Nov 2012 19:28:43 +0000 (14:28 -0500)] 
Use the new functions for default subbuf sizes

Use the functions added by the previous commit. All the occurences of
the previous defines were replaced.

Signed-off-by: Simon Marchi <simon.marchi@polymtl.ca>
Signed-off-by: David Goulet <dgoulet@efficios.com>
12 years agoAdd default subbuf sizes getter functions
Simon Marchi [Tue, 13 Nov 2012 19:28:42 +0000 (14:28 -0500)] 
Add default subbuf sizes getter functions

This patch adds functions to retrieve defaults subbuf sizes. It uses the
DEFAULT_*_SUBBUF_SIZE defines from defaults.h but also make sure that
the values are at least as big as the page size.

The functions are defined as static inline in defaults.h.

Signed-off-by: Simon Marchi <simon.marchi@polymtl.ca>
Signed-off-by: David Goulet <dgoulet@efficios.com>
12 years agoAdd max() and min() macro in common
Simon Marchi [Tue, 13 Nov 2012 19:28:41 +0000 (14:28 -0500)] 
Add max() and min() macro in common

Signed-off-by: Simon Marchi <simon.marchi@polymtl.ca>
Signed-off-by: David Goulet <dgoulet@efficios.com>
12 years agoUpdate version to v2.1.0-rc7 v2.1.0-rc7
David Goulet [Tue, 13 Nov 2012 18:44:38 +0000 (13:44 -0500)] 
Update version to v2.1.0-rc7

Signed-off-by: David Goulet <dgoulet@efficios.com>
12 years agoFix: remove temporary directory for valid filters test
David Goulet [Tue, 13 Nov 2012 18:44:02 +0000 (13:44 -0500)] 
Fix: remove temporary directory for valid filters test

Signed-off-by: David Goulet <dgoulet@efficios.com>
12 years agoFix: Add pointer check when freeing poll events
David Goulet [Fri, 9 Nov 2012 20:28:06 +0000 (15:28 -0500)] 
Fix: Add pointer check when freeing poll events

Signed-off-by: David Goulet <dgoulet@efficios.com>
12 years agoFix: FD leak on thread error
David Goulet [Fri, 9 Nov 2012 20:23:48 +0000 (15:23 -0500)] 
Fix: FD leak on thread error

Also, don't spawn the kernel thread if not root and the no-kernel option
is set.

Fixes #316

Signed-off-by: David Goulet <dgoulet@efficios.com>
12 years agoFix: Wrong fd used by kernel_wait_quiescent
David Goulet [Fri, 9 Nov 2012 18:52:39 +0000 (13:52 -0500)] 
Fix: Wrong fd used by kernel_wait_quiescent

Signed-off-by: David Goulet <dgoulet@efficios.com>
12 years agoSupport new lttng-ust error code
David Goulet [Fri, 9 Nov 2012 18:37:25 +0000 (13:37 -0500)] 
Support new lttng-ust error code

Signed-off-by: David Goulet <dgoulet@efficios.com>
12 years agoFix: Don't set filter if enable event fails
David Goulet [Fri, 9 Nov 2012 18:36:02 +0000 (13:36 -0500)] 
Fix: Don't set filter if enable event fails

Furthermore, the session daemon now returns an already exist error if
the event is enabled twice. Since we can now set filter, it's misleading
the user to tell him/her that the event was enabled but the filter
failed and than disabling the already enabled event by a previous
command.

Fixes #363 #364

Signed-off-by: David Goulet <dgoulet@efficios.com>
12 years agoFix: Wrong data port when listing session
David Goulet [Fri, 9 Nov 2012 16:36:51 +0000 (11:36 -0500)] 
Fix: Wrong data port when listing session

Fixes #377

Signed-off-by: David Goulet <dgoulet@efficios.com>
12 years agoFix: Enable event after start command
David Goulet [Thu, 8 Nov 2012 19:08:28 +0000 (14:08 -0500)] 
Fix: Enable event after start command

Refer to the bug tracker for more information on this bug. In a
nutshell, it was not possible to enable channel/event after a start
command has been issued (for both kernel and UST).

Note that it is still NOT possible to enable a channel after a start but
the use case here was the following:

$ lttng create
$ lttng start
$ lttng enable-event -a -u (or -k)

The first starts does NOT create a kernel or UST session so the
following enable event creates the session for the given domain but
failed to start the session after.

https://bugs.lttng.org/issues/346
https://bugs.lttng.org/issues/394

Fixes #346 #394

Signed-off-by: David Goulet <dgoulet@efficios.com>
12 years agoFix: Teardown of thread_manage_clients on failure of listen/create_poll
Christian Babeux [Thu, 8 Nov 2012 19:19:51 +0000 (14:19 -0500)] 
Fix: Teardown of thread_manage_clients on failure of listen/create_poll

Currently, if the call to lttcomm_listen_unix_sock or
create_thread_poll_set fails, the error handling and thread teardown
code path is triggered via a jump to an error label. This error handling
path closes the sockets that were used and cleanup the poll set. If the
listen fails, the poll set will tentatively be cleaned even though it
has never been initialized.

This patch add 2 labels to differentiate the error handling paths needed
in case of failure of lttcomm_listen_unix_sock or
create_thread_poll_set.

Signed-off-by: Christian Babeux <christian.babeux@efficios.com>
Signed-off-by: David Goulet <dgoulet@efficios.com>
12 years agoAdd a timeout to UST application socket
David Goulet [Thu, 1 Nov 2012 15:24:22 +0000 (11:24 -0400)] 
Add a timeout to UST application socket

By default, a 5 seconds timeout is set on every UST application socket
just after the accept() for both recv and send operation.

This value can be changed through a new environment variable (seconds)
of the session daemon.

This is the first step to fix bug386 where a stopped application can
stalls indefinitely the session daemon when a new command is sent.

The bug 386 is also fixed with the lttng-ust commit:
7bc53e94a229963972aa78880b361b1510fdd268

Fixes #386

Signed-off-by: David Goulet <dgoulet@efficios.com>
12 years agoRevert "Fix cross-compile"
David Goulet [Wed, 7 Nov 2012 20:32:13 +0000 (15:32 -0500)] 
Revert "Fix cross-compile"

This reverts commit 5692e22beeb7119d68055d6450b924972b5f20d0.

Acked-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: David Goulet <dgoulet@efficios.com>
12 years agoFix cross-compile
Mathieu Desnoyers [Wed, 7 Nov 2012 20:13:21 +0000 (15:13 -0500)] 
Fix cross-compile

configure.ac should use --target, not --host to get the target info we
want to compile for. --host is for the host that does the build.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: David Goulet <dgoulet@efficios.com>
12 years agoFix: Consumerd error socket connect race
David Goulet [Tue, 6 Nov 2012 20:55:58 +0000 (15:55 -0500)] 
Fix: Consumerd error socket connect race

Fixes #366

Signed-off-by: David Goulet <dgoulet@efficios.com>
12 years agoFix: Set CLOEXEC flag on every created sockets
David Goulet [Wed, 31 Oct 2012 19:12:00 +0000 (15:12 -0400)] 
Fix: Set CLOEXEC flag on every created sockets

Every new socket created by an accept() in the session daemon is set
with the CLOEXEC flag so when the consumer is spawned we don't leak.

Fixes #367

Signed-off-by: David Goulet <dgoulet@efficios.com>
12 years agoRemove consumer poll timeout in data thread
David Goulet [Tue, 6 Nov 2012 15:18:26 +0000 (10:18 -0500)] 
Remove consumer poll timeout in data thread

This was originally used to stop any poll() after a grace period when a
session daemon dies in case of weird stuck fd(s).

However, things have changed a bit especially on the UST tracer side
where all stream handles are now cleaned up if the session daemon socket
hang up which than release every stream on the consumer and finally
quits gracefully.

Signed-off-by: David Goulet <dgoulet@efficios.com>
12 years agoFix: RCU hash table seed
David Goulet [Tue, 6 Nov 2012 20:21:18 +0000 (15:21 -0500)] 
Fix: RCU hash table seed

Remove the dangerous static value 0x42UL. Use time(NULL) value to set
the new lttng_ht_seed variable when the hash table library constructor
is called.

Fixes #388

Signed-off-by: David Goulet <dgoulet@efficios.com>
12 years agoFix: Do not install health tests helper libraries
Christian Babeux [Tue, 6 Nov 2012 18:32:05 +0000 (13:32 -0500)] 
Fix: Do not install health tests helper libraries

The libraries libhealthexit and libhealthstall should not be installed
on the user system. They are only useful for the health check tests.

Furthermore, when adding libraries to noinst_LTLIBRARIES, libtool will
only build these as static libraries (see [1] for a workaround). This is
fine for most use cases, but for the health tests, we _must_ have shared
libraries (the nature of the tests require LD_PRELOAD), hence we force
the build of a shared object.

Forcing shared object has the unfortunate side-effect of breaking builds
where configure was invoked with "--disable-shared" flag.  Instead of
failing badly, detect this flag and skip the health tests altogether.

noinst shared libs:
[1] - https://lists.gnu.org/archive/html/libtool/2008-06/msg00082.html

Acked-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Christian Babeux <christian.babeux@efficios.com>
Signed-off-by: David Goulet <dgoulet@efficios.com>
12 years agoFix: Create default channel on add-context if none
David Goulet [Tue, 6 Nov 2012 19:35:43 +0000 (14:35 -0500)] 
Fix: Create default channel on add-context if none

For both kernel and UST, if no channel exists and an add-context command
is sent, the default channel0 is created and the context(es) are set.

Fixes #391

Signed-off-by: David Goulet <dgoulet@efficios.com>
12 years agoSupport new liblttng-ust-ctl error code
Mathieu Desnoyers [Tue, 6 Nov 2012 18:47:17 +0000 (13:47 -0500)] 
Support new liblttng-ust-ctl error code

Signed-off-by: David Goulet <dgoulet@efficios.com>
12 years agoFix: Add EPIPE error handling on buffer splice
David Goulet [Tue, 6 Nov 2012 14:41:35 +0000 (09:41 -0500)] 
Fix: Add EPIPE error handling on buffer splice

Even though this is _not_ documented in splice(2), if the fd_out is a
socket but closed on one end, splice returns a negative value and set
errno to EPIPE. The man page specifies a EBADF but I guess both are
possible (and it is according to the kernel 3.6.2 source).

So, when streaming a kernel session (using splice), if the relayd quits,
a splice on the socket returns an EPIPE.

Signed-off-by: David Goulet <dgoulet@efficios.com>
12 years agoFix: Channel creation error return code was not set
David Goulet [Mon, 5 Nov 2012 22:03:19 +0000 (17:03 -0500)] 
Fix: Channel creation error return code was not set

Signed-off-by: David Goulet <dgoulet@efficios.com>
12 years agoFix: Wrong poll events on UST application socket
David Goulet [Mon, 5 Nov 2012 21:49:40 +0000 (16:49 -0500)] 
Fix: Wrong poll events on UST application socket

The thread manage apps was adding UST sockets to the poll set with the
POLLIN event registered. However, the thread was not handling this event
which could ultimately cause an infinite loop if the application sends
data.

This has been observed with the bug386 when an application is stopped
and a lttng command is sent.

https://bugs.lttng.org/issues/386

Furthermore, a time window between the send and the reply recv of an UST
command was making the app manager loop actively because of a POLLIN
event on the socket caused by the reply from the application which is
finally handled a bit after by the client thread. This was not that
problematic but lead to a lot of repeated debug message and CPU time
lost.

This application thread is *only* handling error event usually triggered
by a close() on the UST socket thus OK to *not* wait for POLLIN/POLLOUT
event.

Signed-off-by: David Goulet <dgoulet@efficios.com>
12 years agoFix: Remove dependency to urcu-cds in tools tests
Christian Babeux [Fri, 2 Nov 2012 19:04:02 +0000 (15:04 -0400)] 
Fix: Remove dependency to urcu-cds in tools tests

The -lurcu-cds link flag is not mandatory to link any of the tests.
Also, adding this flag can cause multiple symbol definition errors when
linking statically because the libhashtable contains symbol names that
are also present in urcu-cds.

Signed-off-by: Christian Babeux <christian.babeux@efficios.com>
Signed-off-by: David Goulet <dgoulet@efficios.com>
12 years agoFix: Missing librt dependency in configure check for lttng-ust-ctl
Christian Babeux [Fri, 2 Nov 2012 19:03:17 +0000 (15:03 -0400)] 
Fix: Missing librt dependency in configure check for lttng-ust-ctl

The lttng-ust-ctl library depends on librt. The AC_CHECK_LIBRARY macro
can't automatically resolve dependents libraries (ala libtool), so any
additionnals dependencies must be manually specified.

Signed-off-by: Christian Babeux <christian.babeux@efficios.com>
Signed-off-by: David Goulet <dgoulet@efficios.com>
12 years agoFix: Don't append datetime to default session name
David Goulet [Fri, 2 Nov 2012 18:14:26 +0000 (14:14 -0400)] 
Fix: Don't append datetime to default session name

The liblttng-ctl was appending the date and time to the "auto" session
if detected. The 'auto' keyword is only used by lttng command line

Signed-off-by: David Goulet <dgoulet@efficios.com>
12 years agoFix: Deny session creation name 'auto'
David Goulet [Fri, 2 Nov 2012 17:45:05 +0000 (13:45 -0400)] 
Fix: Deny session creation name 'auto'

This is a reserved keyword for default session(s). Note that this is
only for the lttng command line tool. Using 'auto' is possible with the
API but the current date and time is automatically appended to it for
now so be aware of that.

Fixes #359

Signed-off-by: David Goulet <dgoulet@efficios.com>
12 years agoFix: Add space for stream name CPU number
David Goulet [Fri, 2 Nov 2012 17:16:29 +0000 (13:16 -0400)] 
Fix: Add space for stream name CPU number

Fixes #358

Signed-off-by: David Goulet <dgoulet@efficios.com>
12 years agoFix: Add output option to enable-channel command
David Goulet [Fri, 2 Nov 2012 16:38:33 +0000 (12:38 -0400)] 
Fix: Add output option to enable-channel command

Allow to specify an output mode for the channel (MMAP or SPLICE).

A new error code is introduced to notify the user that the operation is
not supported. Useful for user space tracing which does NOT support
splice mode.

Fixes #335

Signed-off-by: David Goulet <dgoulet@efficios.com>
12 years agoUpdate version to v2.1.0-rc6 v2.1.0-rc6
David Goulet [Fri, 2 Nov 2012 15:31:28 +0000 (11:31 -0400)] 
Update version to v2.1.0-rc6

Signed-off-by: David Goulet <dgoulet@efficios.com>
12 years agoTests: Add filtering tests for uncovered cases
Christian Babeux [Wed, 31 Oct 2012 13:00:45 +0000 (09:00 -0400)] 
Tests: Add filtering tests for uncovered cases

While investigating the code coverage of the filtering feature, a couple
of possible tests cases were uncovered:

Error tests:
* Strings can't be IR root node
* Unary ! not allowed on string type
* Comparison with string type not allowed
* Logical operator not allowed with string types
* Nesting of binary operator not allowed

Valid tests:
* Cover all left/right operands permutations with
  fields ref. and numeric values.

Signed-off-by: Christian Babeux <christian.babeux@efficios.com>
Signed-off-by: David Goulet <dgoulet@efficios.com>
12 years agoFix: Sync issue when deleting a data stream
David Goulet [Thu, 1 Nov 2012 20:27:08 +0000 (16:27 -0400)] 
Fix: Sync issue when deleting a data stream

A data stream was rescheduled for deletion after a flush on hang up.
Once in a normal read code path, on error, the stream is deleted and
then processed for ERR|HUP error which could also delete again the
stream causing an assert() and a failed trace.

We fix that by setting the local array to NULL for that stream once
deleted and ignoring the stream is subsequent loop if NULL.

Fixes #390

Acked-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: David Goulet <dgoulet@efficios.com>
12 years agoRename data_available to data_pending
David Goulet [Thu, 1 Nov 2012 17:02:58 +0000 (13:02 -0400)] 
Rename data_available to data_pending

This is just a rename and a change of semantic.

The lttng_data_pending returns 0 if _NO_ data is pending meaning that
the buffers are ready to be read safely. A value of 1 means that data is
still pending so the buffers are not ready for any read.

This is the same semantic as lttng_data_available but in reverse order.

Signed-off-by: David Goulet <dgoulet@efficios.com>
12 years agoFix: consumer health state
David Goulet [Wed, 31 Oct 2012 16:39:19 +0000 (12:39 -0400)] 
Fix: consumer health state

Fixes #389

Signed-off-by: David Goulet <dgoulet@efficios.com>
12 years agoFix: Add the ACCOUNTING flag to ht creation and set bucket size to 0
David Goulet [Tue, 30 Oct 2012 19:17:06 +0000 (15:17 -0400)] 
Fix: Add the ACCOUNTING flag to ht creation and set bucket size to 0

The resize feature does not work well without the accounting :)

Signed-off-by: David Goulet <dgoulet@efficios.com>
12 years agoFix: Bad return error code handling
David Goulet [Tue, 30 Oct 2012 19:11:18 +0000 (15:11 -0400)] 
Fix: Bad return error code handling

Two things here. First, if the tracer dies before we have time to create
the session on it, the returned value (-1) was not handled creating a
segfault on the following loop.

Second, we no longer assert on the application PID hash table delete
return value since we use add_replace on app. registration creating a
possible key reuse for a different node.

Signed-off-by: David Goulet <dgoulet@efficios.com>
12 years agoFix: Use after free() of the rundir string
David Goulet [Tue, 30 Oct 2012 14:39:41 +0000 (10:39 -0400)] 
Fix: Use after free() of the rundir string

Signed-off-by: David Goulet <dgoulet@efficios.com>
12 years agoFix: Cleanup UST app session on ustctl create session error
David Goulet [Mon, 29 Oct 2012 18:49:50 +0000 (14:49 -0400)] 
Fix: Cleanup UST app session on ustctl create session error

Signed-off-by: David Goulet <dgoulet@efficios.com>
12 years agoFix: add missing pthread_join in sessiond
David Goulet [Mon, 29 Oct 2012 16:02:14 +0000 (12:02 -0400)] 
Fix: add missing pthread_join in sessiond

Signed-off-by: David Goulet <dgoulet@efficios.com>
12 years agoFix: free running directory string
David Goulet [Fri, 26 Oct 2012 17:30:08 +0000 (13:30 -0400)] 
Fix: free running directory string

Signed-off-by: David Goulet <dgoulet@efficios.com>
12 years agoFix: UST app clean list node usage
David Goulet [Fri, 26 Oct 2012 17:23:25 +0000 (13:23 -0400)] 
Fix: UST app clean list node usage

Signed-off-by: David Goulet <dgoulet@efficios.com>
12 years agoAdd liblttng-ctl destructor to cleanup memory
David Goulet [Fri, 26 Oct 2012 17:12:47 +0000 (13:12 -0400)] 
Add liblttng-ctl destructor to cleanup memory

Signed-off-by: David Goulet <dgoulet@efficios.com>
12 years agoFix: Cleanup URIs on teardown
David Goulet [Fri, 26 Oct 2012 17:09:29 +0000 (13:09 -0400)] 
Fix: Cleanup URIs on teardown

Signed-off-by: David Goulet <dgoulet@efficios.com>
12 years agoFix: relayd memleaks
David Goulet [Fri, 26 Oct 2012 17:04:27 +0000 (13:04 -0400)] 
Fix: relayd memleaks

Signed-off-by: David Goulet <dgoulet@efficios.com>
12 years agoFix: Memory leaks of allocated URIs
David Goulet [Fri, 26 Oct 2012 16:32:42 +0000 (12:32 -0400)] 
Fix: Memory leaks of allocated URIs

Signed-off-by: David Goulet <dgoulet@efficios.com>
12 years agoFix: consumer output memory leak on creation
David Goulet [Fri, 26 Oct 2012 16:20:41 +0000 (12:20 -0400)] 
Fix: consumer output memory leak on creation

The sockets hash table was allocated two times hence losing the first
reference at the second allocation.

Furthermore, when a kernel/ust session is created, a default consumer is
allocated but was lost short after that when the tracing session current
consumer was copied and the pointer was overwritten.

Note that this fixes the memory leak but there is a code logic that
seems wrong when it comes to handle the consumer object trace path and
subdir during the session creation. A comment has been added and it
should be fixed.

Signed-off-by: David Goulet <dgoulet@efficios.com>
12 years agoFix: missing addrlen initialization before accept(2)
David Goulet [Fri, 26 Oct 2012 15:48:19 +0000 (11:48 -0400)] 
Fix: missing addrlen initialization before accept(2)

Signed-off-by: David Goulet <dgoulet@efficios.com>
12 years agoFix: relayd trace file padding memleak
David Goulet [Fri, 26 Oct 2012 15:23:15 +0000 (11:23 -0400)] 
Fix: relayd trace file padding memleak

Signed-off-by: David Goulet <dgoulet@efficios.com>
12 years agoFix: Remove useless consumer subdir string concatenation
David Goulet [Fri, 26 Oct 2012 15:18:12 +0000 (11:18 -0400)] 
Fix: Remove useless consumer subdir string concatenation

Signed-off-by: David Goulet <dgoulet@efficios.com>
12 years agoFix: lttng create allocated path memleak
David Goulet [Fri, 26 Oct 2012 14:33:16 +0000 (10:33 -0400)] 
Fix: lttng create allocated path memleak

Signed-off-by: David Goulet <dgoulet@efficios.com>
12 years agoFix: Cppcheck memleakOnRealloc mistake
David Goulet [Fri, 26 Oct 2012 14:28:21 +0000 (10:28 -0400)] 
Fix: Cppcheck memleakOnRealloc mistake

Common realloc mistake: "data_buffer" nulled but not freed upon failure.
Common realloc mistake: "tmp" nulled but not freed upon failure

Signed-off-by: David Goulet <dgoulet@efficios.com>
12 years agoFix: Synchronization issue for data available command
David Goulet [Thu, 25 Oct 2012 19:48:15 +0000 (15:48 -0400)] 
Fix: Synchronization issue for data available command

Signed-off-by: David Goulet <dgoulet@efficios.com>
12 years agoFix: consumer relayd cleanup on disconnect
David Goulet [Thu, 25 Oct 2012 19:34:59 +0000 (15:34 -0400)] 
Fix: consumer relayd cleanup on disconnect

Improve the resilience of the consumer by cleaning up a relayd object
and all associated streams when a write error is detected on a relayd
socket.

Fixes #385

Acked-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: David Goulet <dgoulet@efficios.com>
12 years agoFix: Handle the unary bitwise negation operator (~) in the XML printer
Christian Babeux [Tue, 23 Oct 2012 19:36:41 +0000 (15:36 -0400)] 
Fix: Handle the unary bitwise negation operator (~) in the XML printer

Acked-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Christian Babeux <christian.babeux@efficios.com>
Signed-off-by: David Goulet <dgoulet@efficios.com>
12 years agoFix: Possible memory leaks when creating filter IR root node
Christian Babeux [Tue, 23 Oct 2012 19:36:17 +0000 (15:36 -0400)] 
Fix: Possible memory leaks when creating filter IR root node

Acked-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Christian Babeux <christian.babeux@efficios.com>
Signed-off-by: David Goulet <dgoulet@efficios.com>
12 years agoFix: Delete stream on write error in consumer
David Goulet [Wed, 24 Oct 2012 16:40:59 +0000 (12:40 -0400)] 
Fix: Delete stream on write error in consumer

Whenever a write() error occured, both on network or local trace file,
the consumer thread just died considering the error a fatal one.

This commit fixes that by simply deleting the stream, removing it from
the poll set of the thread and freeing it.

Furthermore, on a write() error, a SIGPIPE is usually raised if the FD
is invalid. The consumer is catching this signal but was initiating a
should exit action thus ultimately cleaning all threads. We now still
catch SIGPIPE but don't set the should quit flag so normal cleanup can
be done by the threads.

Signed-off-by: David Goulet <dgoulet@efficios.com>
12 years agoFix: Error handling when sending relayd sockets to consumer
David Goulet [Mon, 22 Oct 2012 21:24:40 +0000 (17:24 -0400)] 
Fix: Error handling when sending relayd sockets to consumer

Signed-off-by: David Goulet <dgoulet@efficios.com>
12 years agoAdd stream lock comment for nesting
David Goulet [Mon, 22 Oct 2012 21:18:44 +0000 (17:18 -0400)] 
Add stream lock comment for nesting

Signed-off-by: David Goulet <dgoulet@efficios.com>
12 years agoFix: Mutex and RCU lock nesting in consumer
David Goulet [Mon, 22 Oct 2012 21:16:38 +0000 (17:16 -0400)] 
Fix: Mutex and RCU lock nesting in consumer

Signed-off-by: David Goulet <dgoulet@efficios.com>
12 years agoFix: Uninitialized ret code
David Goulet [Mon, 22 Oct 2012 21:15:19 +0000 (17:15 -0400)] 
Fix: Uninitialized ret code

Signed-off-by: David Goulet <dgoulet@efficios.com>
12 years agoFix: Remove bad condition and fix overflow issue
David Goulet [Mon, 22 Oct 2012 20:44:51 +0000 (16:44 -0400)] 
Fix: Remove bad condition and fix overflow issue

Signed-off-by: David Goulet <dgoulet@efficios.com>
12 years agoFix: consumerd pthread error flow
David Goulet [Mon, 22 Oct 2012 20:38:52 +0000 (16:38 -0400)] 
Fix: consumerd pthread error flow

Signed-off-by: David Goulet <dgoulet@efficios.com>
12 years agoFix: Set a single return point and mutex unlock
David Goulet [Mon, 22 Oct 2012 20:37:10 +0000 (16:37 -0400)] 
Fix: Set a single return point and mutex unlock

Signed-off-by: David Goulet <dgoulet@efficios.com>
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