Mathieu Desnoyers [Wed, 16 Nov 2011 02:48:58 +0000 (21:48 -0500)]
ust-app: fix bogus double-use of iterator
"yo dawg, I'm using my iterator in my iterator".
;-)
Fixes pretty much all of N event/N channel/N session UST problems.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Wed, 16 Nov 2011 02:01:47 +0000 (21:01 -0500)]
UST consumer: fix read on hangup, and UST get subbuf error handling
This fixes multiple consecutive runs of the "demo" program, where
sometimes one channel would not be saved.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Wed, 16 Nov 2011 01:24:41 +0000 (20:24 -0500)]
Fix multi-session UST handling combined with shm fd teardown
shm fd is used as unique identifier for the channel when passing the
stream fds to the consumer. However, closing the fd reuses the same
identifier for the next round, thus getting the same consumer
channel/streams as the previous one. This causes multi-session tracing
to only work for the first session, not the following ones.
So instead of doing a channel lookup on add channel and a stream lookup
upon add stream, we "steal" the identifier. We still lookup the channel
identifier upon stream add though: this means the sessiond needs to keep
the channel shm fd open until it has finished sending all stream fds to
the consumer. For kernel consumer, the update operation still does a
stream id lookup.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Wed, 16 Nov 2011 00:15:18 +0000 (19:15 -0500)]
lttng-sessiond: keep enabled/active state for sessions, cleanup enabled state for events/channels
allows
lttng list
Available tracing sessions:
1) test1 (/root/lttng-traces/test1-
20111115-191312) [inactive]
2) test2 (/root/lttng-traces/test2-
20111115-191310) [active]
and
root@thinkos:~# lttng list test2
Tracing session test2: [active]
Trace path: /root/lttng-traces/test2-
20111115-191502
When events/channels/sessions enabled state is set to -1, show an empty
string instead of the meaningless "[enabled: -1]".
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Tue, 15 Nov 2011 23:35:28 +0000 (18:35 -0500)]
rculfhash: add missing braces around iteration macros pos parameter
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Tue, 15 Nov 2011 03:40:54 +0000 (22:40 -0500)]
lttng-sessiond: keep track of UST consumer fd for all UST sessions.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
David Goulet [Tue, 15 Nov 2011 20:39:37 +0000 (15:39 -0500)]
Change malloc to zmalloc in lttng-sessiond code
Signed-off-by: David Goulet <david.goulet@polymtl.ca>
David Goulet [Tue, 15 Nov 2011 20:23:14 +0000 (15:23 -0500)]
Cleanup and add comments to ust_app.c
Mostly cleanup the code by moving static functions up and creating
wrapper function around the ustctl_* API calls.
Also, replace all hashtable iteration structure by cds each entry
macros.
Signed-off-by: David Goulet <david.goulet@polymtl.ca>
David Goulet [Mon, 14 Nov 2011 21:56:58 +0000 (16:56 -0500)]
Fix enabled state when listing UST events
NOTE: When listing all UST events from all registered apps, the enabled
state is set to -1 meaning that there is no enable/disable state
semantic at this point.
Signed-off-by: David Goulet <david.goulet@polymtl.ca>
David Goulet [Mon, 14 Nov 2011 21:46:28 +0000 (16:46 -0500)]
Multiple fixes when cleaning app and UST sessions
Also adds event's attributes to the ust_app_event data structure.
Signed-off-by: David Goulet <david.goulet@polymtl.ca>
David Goulet [Mon, 14 Nov 2011 21:43:09 +0000 (16:43 -0500)]
Add important DEBUG statement
Signed-off-by: David Goulet <david.goulet@polymtl.ca>
David Goulet [Mon, 14 Nov 2011 19:41:48 +0000 (14:41 -0500)]
Cleanup trace ust destroy functions
Signed-off-by: David Goulet <david.goulet@polymtl.ca>
David Goulet [Mon, 14 Nov 2011 17:11:17 +0000 (12:11 -0500)]
Merge branch 'master' of git://git.lttng.org/lttng-tools
David Goulet [Mon, 14 Nov 2011 17:09:51 +0000 (12:09 -0500)]
Add cleanup function for UST app
Also, those functions uses the new ustctl_release_object function from
the UST API.
Signed-off-by: David Goulet <david.goulet@polymtl.ca>
David Goulet [Mon, 14 Nov 2011 17:09:31 +0000 (12:09 -0500)]
Change malloc to zmalloc on UST metadata creation
Signed-off-by: David Goulet <david.goulet@polymtl.ca>
David Goulet [Mon, 14 Nov 2011 17:08:29 +0000 (12:08 -0500)]
Add hashtable destroy
Signed-off-by: David Goulet <david.goulet@polymtl.ca>
David Goulet [Mon, 14 Nov 2011 17:08:00 +0000 (12:08 -0500)]
Fix possible NULL UST session on start trace
Signed-off-by: David Goulet <david.goulet@polymtl.ca>
David Goulet [Mon, 14 Nov 2011 15:26:37 +0000 (10:26 -0500)]
Fix indentation
Signed-off-by: David Goulet <david.goulet@polymtl.ca>
Mathieu Desnoyers [Mon, 14 Nov 2011 16:03:48 +0000 (11:03 -0500)]
sessiond: don't link on lttng-ust-comm anymore
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Mon, 14 Nov 2011 14:40:48 +0000 (09:40 -0500)]
Fix incorrect POPT_ARG_STRING usage
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Mon, 14 Nov 2011 14:31:22 +0000 (09:31 -0500)]
lttng enable-events: fix argument parsing
We should only specify one of arg expected is a string/opt string _or_
that the callback needs to read it, but not both.
Causes some arguments to be skipped with some libpopt versions.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Mon, 14 Nov 2011 13:46:16 +0000 (08:46 -0500)]
Fix debug message channel vs session name mixup
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Sun, 13 Nov 2011 21:11:02 +0000 (16:11 -0500)]
Remove leftover debug message
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Sun, 13 Nov 2011 17:28:43 +0000 (12:28 -0500)]
add_ustctx_all_channels: Move rcu_read_unlock in error label
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Sun, 13 Nov 2011 17:21:06 +0000 (12:21 -0500)]
ust_app_find_by_pid: move rcu_read_unlock to error label
Less error-prone than read unlock within the code, as proven by commit
1e3a10e37a519046fd49c77f2fa23807b132f330.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Sun, 13 Nov 2011 17:17:57 +0000 (12:17 -0500)]
sessiond find_app_by_sock: remove double-rcu-unlock in from error paths
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Sun, 13 Nov 2011 17:16:22 +0000 (12:16 -0500)]
sessiond trace-ust: fix memleak on error paths
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Sun, 13 Nov 2011 17:12:12 +0000 (12:12 -0500)]
lttng UI: read opt_cmd_name opt arg for each command
Ensure all commands are layed out in the same way too.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Sat, 12 Nov 2011 17:56:50 +0000 (12:56 -0500)]
LTTng sessiond: fix ust app error handling
Fix incorrect error handling of ust_app_add_channel_all and
ust_app_add_event_all commands. Make ust_app_start_trace take RCU
read-side lock, because this API is exposed outside of ust-app.c.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Michal Simek [Fri, 11 Nov 2011 16:53:10 +0000 (11:53 -0500)]
Fix link to git repository
Signed-off-by: David Goulet <david.goulet@polymtl.ca>
David Goulet [Thu, 10 Nov 2011 20:16:51 +0000 (15:16 -0500)]
Fix NULL dereference in liblttngctl
Signed-off-by: David Goulet <david.goulet@polymtl.ca>
David Goulet [Thu, 10 Nov 2011 20:10:42 +0000 (15:10 -0500)]
Merge branch 'master' of git://git.lttng.org/lttng-tools
David Goulet [Thu, 10 Nov 2011 20:10:35 +0000 (15:10 -0500)]
Add tracepoint listing for UST
Signed-off-by: David Goulet <david.goulet@polymtl.ca>
David Goulet [Thu, 10 Nov 2011 20:07:48 +0000 (15:07 -0500)]
Fix not NULL pointer on size 0
Signed-off-by: David Goulet <david.goulet@polymtl.ca>
David Goulet [Thu, 10 Nov 2011 20:07:13 +0000 (15:07 -0500)]
Update from upstream for ht macros
Signed-off-by: David Goulet <david.goulet@polymtl.ca>
Mathieu Desnoyers [Thu, 10 Nov 2011 18:11:54 +0000 (13:11 -0500)]
UST support: send commands to app before register done
Required for handling of short-lived applications.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Wed, 9 Nov 2011 16:09:39 +0000 (11:09 -0500)]
Fix ust consumer channel memory non-zeroed allocation
The cpu count was expecting memory to be zeroed on allocation. Caused
stream open errors and zero-sized metadata files (and unability to open
channel files).
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Wed, 9 Nov 2011 15:37:41 +0000 (10:37 -0500)]
Update ust-abi/ust-ctl header copies
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
David Goulet [Tue, 8 Nov 2011 23:08:00 +0000 (18:08 -0500)]
Cleanup ust-app.c and make it more modular
Signed-off-by: David Goulet <david.goulet@polymtl.ca>
David Goulet [Tue, 8 Nov 2011 19:30:20 +0000 (14:30 -0500)]
Fix possible NULL pointer dereference
Signed-off-by: David Goulet <david.goulet@polymtl.ca>
David Goulet [Tue, 8 Nov 2011 18:22:40 +0000 (13:22 -0500)]
Fix wrong pathname creation for UST metadata
Signed-off-by: David Goulet <david.goulet@polymtl.ca>
David Goulet [Tue, 8 Nov 2011 18:14:22 +0000 (13:14 -0500)]
Fix directory creation of UST traces
Signed-off-by: David Goulet <david.goulet@polymtl.ca>
David Goulet [Tue, 8 Nov 2011 17:28:34 +0000 (12:28 -0500)]
Fix useless context hashtable size and segfault on destroy
Signed-off-by: David Goulet <david.goulet@polymtl.ca>
David Goulet [Tue, 8 Nov 2011 17:07:07 +0000 (12:07 -0500)]
Add auto start UST trace support
Signed-off-by: David Goulet <david.goulet@polymtl.ca>
Mathieu Desnoyers [Tue, 8 Nov 2011 14:42:17 +0000 (09:42 -0500)]
UST consumer: perform buffer flush on hang up
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
David Goulet [Mon, 7 Nov 2011 21:38:04 +0000 (16:38 -0500)]
Fix wrong returned valu on UST start trace
Signed-off-by: David Goulet <david.goulet@polymtl.ca>
David Goulet [Mon, 7 Nov 2011 21:27:00 +0000 (16:27 -0500)]
Fix build system for urcu wfqueue
Signed-off-by: David Goulet <david.goulet@polymtl.ca>
David Goulet [Mon, 7 Nov 2011 21:21:22 +0000 (16:21 -0500)]
Auto creation of chan/event on apps registration
On UST apps registration, all channel(s) and event(s) from the UST
global domain are created on the apps.
Adds a new check for urcu wait-free queue in configure.ac
Signed-off-by: David Goulet <david.goulet@polymtl.ca>
David Goulet [Mon, 7 Nov 2011 17:07:34 +0000 (12:07 -0500)]
Add missing function references with no UST support
Signed-off-by: David Goulet <david.goulet@polymtl.ca>
Mathieu Desnoyers [Sat, 5 Nov 2011 17:57:01 +0000 (13:57 -0400)]
Fix incorrect parenthesis for poll test in consumer
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Sat, 5 Nov 2011 17:45:35 +0000 (13:45 -0400)]
UST consumer: implement missing ust-specific callbacks + fixes.
Also fix consumer handling of poll fd: a mask should be used.
Also fix UST stream output passed to the consumer (the fix is a hack
currently, left a FIXME).
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Sat, 5 Nov 2011 15:31:24 +0000 (11:31 -0400)]
Add missing rcu_read_unlock on error paths
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Sat, 5 Nov 2011 15:27:53 +0000 (11:27 -0400)]
Fix order of streams
Use a list instead of hash table to send streams in correct order.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Fri, 4 Nov 2011 12:31:56 +0000 (08:31 -0400)]
UST consumer interaction fix: send all channel streams
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Fri, 4 Nov 2011 11:32:26 +0000 (07:32 -0400)]
LTTng-UST support: --disable-lttng-ust build option
From now on, configure fails if lttng-ust is not found.
--disable-lttng-ust must be explicitely specified to build without UST
support.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Thu, 3 Nov 2011 23:33:24 +0000 (19:33 -0400)]
ust consumer: flag shm/wait fd as copy
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Thu, 3 Nov 2011 23:18:51 +0000 (19:18 -0400)]
ust consumer: fix double close
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Thu, 3 Nov 2011 19:18:04 +0000 (15:18 -0400)]
consumer handling fix: send metadata channel shm size
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Thu, 3 Nov 2011 19:01:43 +0000 (15:01 -0400)]
Fix UST consumer FD send: channels only send one FD
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Thu, 3 Nov 2011 18:52:01 +0000 (14:52 -0400)]
Fix debug message in send consumer fd.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
David Goulet [Thu, 3 Nov 2011 18:26:26 +0000 (14:26 -0400)]
Remove *bad* debug printf
Signed-off-by: David Goulet <david.goulet@polymtl.ca>
David Goulet [Thu, 3 Nov 2011 17:19:06 +0000 (13:19 -0400)]
Change linking libs using new UST names
Signed-off-by: David Goulet <david.goulet@polymtl.ca>
David Goulet [Thu, 3 Nov 2011 17:09:22 +0000 (13:09 -0400)]
Fix configure.ac using new UST headers location
Signed-off-by: David Goulet <david.goulet@polymtl.ca>
David Goulet [Thu, 3 Nov 2011 16:55:11 +0000 (12:55 -0400)]
Change UST header location and update in tree headers
Signed-off-by: David Goulet <david.goulet@polymtl.ca>
David Goulet [Thu, 3 Nov 2011 15:59:02 +0000 (11:59 -0400)]
Support urcu 0.6.6 with the likely/unlikely API change
Signed-off-by: David Goulet <david.goulet@polymtl.ca>
David Goulet [Thu, 3 Nov 2011 15:34:59 +0000 (11:34 -0400)]
Rename ltt-sessiond to lttng-sessiond
Signed-off-by: David Goulet <david.goulet@polymtl.ca>
David Goulet [Thu, 3 Nov 2011 15:06:40 +0000 (11:06 -0400)]
Fix UST renaming and update ust headers
Signed-off-by: David Goulet <david.goulet@polymtl.ca>
David Goulet [Thu, 3 Nov 2011 15:00:50 +0000 (11:00 -0400)]
Update README and TODO
Signed-off-by: David Goulet <david.goulet@polymtl.ca>
David Goulet [Thu, 3 Nov 2011 14:13:01 +0000 (10:13 -0400)]
Fix build system with libustcomm removed
Signed-off-by: David Goulet <david.goulet@polymtl.ca>
David Goulet [Thu, 3 Nov 2011 14:01:17 +0000 (10:01 -0400)]
Remove unused and empty lib
Signed-off-by: David Goulet <david.goulet@polymtl.ca>
Thomas Petazzoni [Thu, 3 Nov 2011 11:51:21 +0000 (12:51 +0100)]
ltt-sessiond: use short options for modprobe in order to support Busybox
Many embedded systems are based on Busybox, and therefore use the
Busybox implementation of modprobe. This implementation does not
support long options such as --remove and --quiet, only short options
such as -r and -q are supported.
This patches changes ltt-sessiond to use the short options, which are
more widely available, and allows lttng to work easily on a
Busybox-based system.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
David Goulet [Wed, 2 Nov 2011 19:44:27 +0000 (15:44 -0400)]
Preliminary work for full UST support
Add hashtable support for all UST data structure. At this point, enable
channel and event works with the global UST domain. The interaction with
the ust consumer has problems for now thus not working at this stage.
NOTICE: This commit does NOT work with the user space tracer yet. Please
refer to next commit for working version.
Signed-off-by: David Goulet <david.goulet@polymtl.ca>
David Goulet [Wed, 2 Nov 2011 19:43:50 +0000 (15:43 -0400)]
Update RCU hashtable from upstream urcu
Signed-off-by: David Goulet <david.goulet@polymtl.ca>
David Goulet [Thu, 27 Oct 2011 12:50:45 +0000 (14:50 +0200)]
Import hashtable files from URCU upstream git
Signed-off-by: David Goulet <david.goulet@polymtl.ca>
David Goulet [Thu, 27 Oct 2011 12:49:48 +0000 (14:49 +0200)]
Basic hashtable support for UST
Signed-off-by: David Goulet <david.goulet@polymtl.ca>
Mathieu Desnoyers [Wed, 2 Nov 2011 14:06:49 +0000 (10:06 -0400)]
Update documentation following babeltrace UI change
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Thu, 27 Oct 2011 12:33:28 +0000 (14:33 +0200)]
UST support: add UST control commands
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Thu, 27 Oct 2011 12:02:40 +0000 (08:02 -0400)]
Fix kconsumerd number of fd expected
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
David Goulet [Wed, 26 Oct 2011 11:50:16 +0000 (07:50 -0400)]
Add lttng-consumerd to gitignore
Signed-off-by: David Goulet <david.goulet@polymtl.ca>
David Goulet [Wed, 26 Oct 2011 11:49:38 +0000 (07:49 -0400)]
Remove unused variable
Signed-off-by: David Goulet <david.goulet@polymtl.ca>
David Goulet [Tue, 25 Oct 2011 19:29:50 +0000 (15:29 -0400)]
API change for lttng_get_readeable_code
The liblttngctl lttng_get_readeable_code call is renamed to
lttng_strerror.
Signed-off-by: David Goulet <david.goulet@polymtl.ca>
David Goulet [Tue, 25 Oct 2011 19:26:09 +0000 (15:26 -0400)]
Fix array size in kconsumer add stream
Signed-off-by: David Goulet <david.goulet@polymtl.ca>
David Goulet [Tue, 25 Oct 2011 19:25:11 +0000 (15:25 -0400)]
Fix inline function bad definition
Signed-off-by: David Goulet <david.goulet@polymtl.ca>
Mathieu Desnoyers [Sun, 23 Oct 2011 13:23:12 +0000 (09:23 -0400)]
Use UST comm lib
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Sun, 23 Oct 2011 12:50:13 +0000 (08:50 -0400)]
Update UST messages
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Sun, 23 Oct 2011 01:06:11 +0000 (21:06 -0400)]
UST 2.0 support
Refactoring of the consumer/sessiond interaction so the consumer
supports applications instrumented with libust (UST 2.0).
At this point, more testing of interaction between libust and sessiond
is required.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
David Goulet [Wed, 5 Oct 2011 22:40:19 +0000 (18:40 -0400)]
Fix disable event
Signed-off-by: David Goulet <david.goulet@polymtl.ca>
David Goulet [Wed, 5 Oct 2011 22:20:34 +0000 (18:20 -0400)]
Add EEXIST support for kernel event on the tracer side
Signed-off-by: David Goulet <david.goulet@polymtl.ca>
David Goulet [Wed, 5 Oct 2011 22:09:23 +0000 (18:09 -0400)]
Fix bad channel handling on enable-event
The channel attributes and name were not passed to the create function
when a channel is requested and did not exist on enable-event.
Signed-off-by: David Goulet <david.goulet@polymtl.ca>
David Goulet [Tue, 4 Oct 2011 21:53:16 +0000 (17:53 -0400)]
Fix comments in lttng-sessiond-comm code
Signed-off-by: David Goulet <david.goulet@polymtl.ca>
David Goulet [Tue, 4 Oct 2011 21:49:27 +0000 (17:49 -0400)]
Add recv fds function to lttng-comm API
Signed-off-by: David Goulet <david.goulet@polymtl.ca>
David Goulet [Tue, 4 Oct 2011 21:27:50 +0000 (17:27 -0400)]
Add missing mutex lock for kconsumerd pid
Signed-off-by: David Goulet <david.goulet@polymtl.ca>
David Goulet [Tue, 4 Oct 2011 21:15:32 +0000 (17:15 -0400)]
Add sem_wait timeout on the kconsumerd thread
It's unlikely to happen but is the kconsumerd was not able to send us
the sock ready command, at least the session daemon will not stall
forever. A 30 seconds timeout is added and error is handle after that.
Also adds the handling of the sem_init ret value and adds mutex lock
around the kconsumerd pid in the same function.
There was also a problem on error code handling where LTTCOMM error was
returned by spawn kconsumerd function but handled as if it might be
negative at the end of the call chain. This was preventing to return the
right error code to the client when the kconsumerd failed.
Signed-off-by: David Goulet <david.goulet@polymtl.ca>
David Goulet [Tue, 4 Oct 2011 20:24:10 +0000 (16:24 -0400)]
Remove session list lock acquisition of the search
The lock/unlock of the session list in the find session by name function
is removed thus the caller must held the lock before calling that search
function.
Also, the path and name are now static size on the stack and not
allocated strings at session creation.
Signed-off-by: David Goulet <david.goulet@polymtl.ca>
David Goulet [Tue, 4 Oct 2011 14:54:05 +0000 (10:54 -0400)]
Fix possible use of uninitialized variable
Signed-off-by: David Goulet <david.goulet@polymtl.ca>
David Goulet [Mon, 3 Oct 2011 19:23:16 +0000 (15:23 -0400)]
Fix session list deadlock
On session destroy, the session list lock is acquired but this call
could be made inside a section where this lock is already acquired. The
call has been changed to using the session pointer and not the name thus
removing a useless list walk.
Signed-off-by: David Goulet <david.goulet@polymtl.ca>
David Goulet [Mon, 3 Oct 2011 18:46:40 +0000 (14:46 -0400)]
Fix enable syscall and bad value of poll set size
First, when enabling syscall tracing, on success 0 is return so we don't
add this value to the event list or else we were polling on fd 0 which
is not a valid event fd. A normal kernel create event, the fd of that
event is returned from the ioctl which is not the case for syscalls.
Second, the poll size was not reset when updating the kernel poll set so
at each kernel poll update, the value was not coherent with the real
poll size and thus creating unstable behavior (unknown).
This commit MIGHT fix a blocking problem happening when using a custom
channel and enabling syscall on it. This issue was reported by Julien
Desfossez <julien.desfossez@polymtl.ca>.
Signed-off-by: David Goulet <david.goulet@polymtl.ca>
Yannick Brosseau [Mon, 19 Sep 2011 21:17:56 +0000 (17:17 -0400)]
Don't report an error when the last section of the path exist in mkdir_recursive
Minor adjustment for perror call changed to PERROR using the lttngerr.h
interface.
Signed-off-by: Yannick Brosseau <yannick.brosseau@gmail.com>
Signed-off-by: David Goulet <david.goulet@polymtl.ca>
Mathieu Desnoyers [Fri, 30 Sep 2011 15:32:22 +0000 (11:32 -0400)]
Version 2.0-pre14
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Fri, 30 Sep 2011 15:23:32 +0000 (11:23 -0400)]
Implement enable all vs enable tracepoints vs enable syscalls
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
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