Commit Graph

12 Commits

Author SHA1 Message Date
Neels Hofmeyr 17518fe393 doxygen: unify use of \file across the board
Considering the various styles and implications found in the sources, edit
scores of files to follow the same API doc guidelines around the doxygen
grouping and the \file tag.

Many files now show a short description in the generated API doc that was so
far only available as C comment.

The guidelines and reasoning behind it is documented at
https://osmocom.org/projects/cellular-infrastructure/wiki/Guidelines_for_API_documentation

In some instances, remove file comments and add to the corresponding group
instead, to be shared among several files (e.g. bitvec).

Change-Id: Ifa70e77e90462b5eb2b0457c70fd25275910c72b
2017-06-23 00:18:23 +00:00
Harald Welte 31c0fef2fd control_if: Add control interface commands for FSMs
This allows programmatic access to introspection of FSM instances, which
is quite handy from e.g. external test cases: Send a message to the
code, then use the CTRL interface to check if that message has triggered
the right kind of state transition.

Change-Id: I0f80340ee9c61c88962fdd6764a6098a844d0d1e
2017-04-27 09:50:47 +02:00
Neels Hofmeyr 7c1ec8c8e7 ctrl_type_vals: explicitly terminate
Don't use CTRL_TYPE_UNKNOWN as value_string[] terminator, use an explicit, more
obvious { 0, NULL } termination. Set an explicit string for CTRL_TYPE_UNKNOWN.
No other value_string[]s to date have such a "hidden" terminator.

BTW, a { 0, "string" } item is not a terminator, only { 0, NULL } is, so we can
set a string for CTRL_TYPE_UNKNOWN == 0.

Also, having a string value for CTRL_TYPE_UNKNOWN is not harmful because all
code paths explicitly check for the CTRL_TYPE_*s that are valid.

Adjust the test expectation.

From the ctrl_type_vals enum, remove the = 0, because it is implicitly 0
anyway.

One motivation to press this fixup: I am trying to add a script that checks
whether all value_string[]s are terminated to our jenkins jobs, and to find
that this one is terminated, it would need to interpret the CTRL_TYPE_UNKNOWN
constant, which would make things far more complex. At this point, all of the
value_string[]s have an explicit termination, and I would like to enforce this
from now on -- for readable code and to not spend more time on the validator.

The patch adding ctrl_type_vals (Icd4e96dd9f00876cb70b43cfcf42ab4f10311b28) was
accepted by another reviewer before I could reconfirm my -1, so this is a fixup
to enable the termination checking script patches.

Related: I2bc93ab4781487e7685cfb63091a489cd126b1a8 (adds script to libosmocore)
         I7fe3678b524d602fc6aa14bc0ed06308df809a3e (uses in jenkins.sh)
	 Icd4e96dd9f00876cb70b43cfcf42ab4f10311b28 (adds ctrl_type_vals)

Change-Id: Ia99f37464c7b36b587da2cc78f52c82725f02cbc
2017-03-15 13:47:20 +00:00
Max 70c7d4160d Use value_string for ctrl_type
Use value_string for enum ctrl_type instead of custom code. Add
corresponding unit tests.

Related: OS#1615
Change-Id: Icd4e96dd9f00876cb70b43cfcf42ab4f10311b28
2017-03-01 16:37:59 +00:00
Max 8928747a3e CTRL: add write-only helpers
Similar to CTRL_CMD_DEFINE_RO() add helper for control commands which
are not meant to be read, only to set. Similarly, add
CTRL_CMD_DEFINE_WO_NOVRF() for commands which do not perform inbound
data verification.

Change-Id: I66b7990db590c1f8e56326e392e6c1d2eafebd9a
2017-01-16 08:54:17 +00:00
Neels Hofmeyr 694f72d148 Revert "Constify ctrl_cmd struct fields where appropriate"
This reverts commit ed9d6da5df.

The commit is good as such, but it causes many compiler warnings in the OpenBSC
build. We want this to be re-applied as soon as we have patches ready that fix
the fallout in openbsc.git.

See also https://lists.osmocom.org/pipermail/openbsc/2016-October/009802.html

Related: OS#1829
Change-Id: I722ad60232a6ef5b4cb984b92c42851de26b3ccd
2016-10-20 17:53:10 +02:00
Max ed9d6da5df Constify ctrl_cmd struct fields where appropriate
Change-Id: I3f55c1d4b965d215dc9b16f4b284b7fea4bde9e9
2016-10-11 18:27:22 +02:00
Harald Welte 39c9e7b471 libctrl: Add support for 'deferred control commands'
Sometimes a control interface command cannot be processed
and responded immediately, but we need to process it asynchronously.

In order to support this, we introduce the 'ctrl_cmd_def', which
represents such a deferred command.  It is created by the service
implementing the command using ctrl_cmd_def_make(), and a response is
later sent using ctrl_cmd_def_send().

ctrl_cmd_def_is_zombie() must be called to handle the case where
the control connection has disconnected/died between receiving the
command and sending the response.
2014-08-24 16:52:54 +02:00
Harald Welte 5ddd435919 Convert recently-introduced header files to #pragma once 2014-08-21 15:42:44 +02:00
Harald Welte f3c7e85d05 libctrl: remove reference to bsc_replace_string()
... and rather introduce a general osmo_talloc_replace_string() to
libosmocore.
2014-08-21 15:34:17 +02:00
Harald Welte 1238cc64d7 libctrl: remove openbsc headers, convert from make_sock to libosmocore 2014-08-21 15:34:17 +02:00
Harald Welte dda4225153 libctr: rename/move control interface to libosmocore naming scheme 2014-08-21 15:34:17 +02:00