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* select: Make file descriptor lists per-threadHarald Welte2019-11-071-3/+17
| | | | | | | | | | In a multi-threaded environemnt, it's likely that each thread will have its own, distinct set of file descriptors that it wants to watch. Hence, let's make the osmo_fd_* functions configure not one global list of file descriptors, but a thread-local list of file descriptors. Change-Id: I5082ed3e500ad1a7516e1785bc57e008da2fac9a
* context: Add support for [per-thread] global talloc contextsHarald Welte2019-08-271-5/+35
| | | | | | | | | | Rather than having applications maintain their own talloc cotexts, let's offer some root talloc contexts in libosmocore. Let's also make them per thread right from the beginning. This will help some multi-threaded applications to use talloc in a thread-safe way. Change-Id: Iae39cd57274bf6753ecaf186f229e582b42662e3
* select: Rename BSC_FD_* constants to OSMO_FD_*Harald Welte2019-03-211-8/+8
| | | | | | | | | | | | The naming of these constants dates back to when the code was private within OpenBSC. Everything else was renamed (bsc_fd -> osmo_fd) at the time, but somehow the BSC_FD_* defines have been missed at the time. Keep compatibility #defines around, but allow us to migrate the applications to a less confusing naming meanwhile. Change-Id: Ifae33ed61a7cf0ae54ad487399e7dd2489986436
* select: Call log_reset_context() before calling file descriptor callbacksHarald Welte2019-02-211-0/+6
| | | | | | | | | | Make sure to clear any log context before processing the next incoming message as part of some file descriptor callback. This effectively prevents "context leaking" from processing of one message into processing of the next message as part of one iteration through the list of file descriptors here. Change-Id: I3644c7bc1a9cec5858eb0faf94efc8c3ba7f5d8d Closes: OS#3813
* timerfd_create(): Fix error handling of osmo_fd_register()Harald Welte2018-10-211-1/+8
| | | | | Change-Id: Ia2528cc3e3155bbc9cb32dee0e3af99cc6e1c654 Closes: Coverity CID#188853
* Add osmo_timerfd_* functions for osmo_fd-wrapped timerfdHarald Welte2018-05-101-0/+66
| | | | | | | | | | | | | | | Linux offers file descriptor based periodic (interval) timers, which can achieve a higher precision than our userspace based timers and which can be slave'd to CLOCK_MONOTINIC or other clock sources. Let's add some code for osmo_fd wrapped versions that integrate well with our select() abstraction. The code has been used in osmo-bts-trx since June 2017 (change-id I51b19adde14ebb7ef3bb863d45e06243c323e22e), and I'm just renaming and moving it to libosmocore here. After a merge, the osmo-bts implementations can be removed in favor if this one. Change-Id: Ibeffba7c997252c003723bcd5d14122c4ded2fe7
* Fix/Update copyright notices; Add SPDX annotationHarald Welte2017-11-131-0/+3
| | | | | | | | Let's fix some erroneous/accidential references to wrong license, update copyright information where applicable and introduce a SPDX-License-Identifier to all files. Change-Id: I39af26c6aaaf5c926966391f6565fc5936be21af
* add osmo_fd_setup() convenience function to fill-in osmo_fdHarald Welte2017-08-121-0/+18
| | | | | | | | This basically follows the concept of osmo_timer_setup() and allows the caller to fill-in all configurable fields of osmo_fd in one line of code, rather than open-coding it in 5 lines everywhere. Change-Id: I6dbf19ea22fd65302bfc5424c10418d1b7939094
* select: Add new osmo_fd_close() functionHarald Welte2017-07-131-0/+17
| | | | | | | | | This is a convenience helper that will both close a fd, mark it as closed and unregister it from the event loop abstraction. In most cases, you probably actually want to use it instead of manually closing and calling osmo_fd_unregister(). Change-Id: Icd0933eed6a24edde7cdcb378e138897ecc5332c
* doxygen: unify use of \file across the boardNeels Hofmeyr2017-06-231-6/+7
| | | | | | | | | | | | | | | | | 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
* doxygen: enable AUTOBRIEF, drop \briefNeels Hofmeyr2017-06-231-7/+7
| | | | | | | | | | Especially for short descriptions, it is annoying to have to type \brief for every single API doc. Drop all \brief and enable the AUTOBRIEF feature of doxygen, which always takes the first sentence of an API doc as the brief description. Change-Id: I11a8a821b065a128108641a2a63fb5a2b1916e87
* update/extend doxygen documentationHarald Welte2017-06-121-3/+2
| | | | | | | | | It's a pity that even with this patch we still are fare away from having the whole API documented. However, at least we have a more solid foundation. Updates not only extend the documentation, but also make sure it is rendered properly in the doxygen HTML. Change-Id: I1344bd1a6869fb00de7c1899a8db93bba9bafce3
* src/select.c: Don't #include <sys/select.h> if it doesn't existHarald Welte2017-05-171-1/+1
| | | | | | | | | We have to #include <sys/select.h> inside the block protected by HAVE_SYS_SELECT_H, otherwise it will fail on (embedded) builds where that file doesn't exist, such as the arm-none-eabi target on Debian stable and Ubuntu 16.04. Change-Id: I82a2dcbc55b6ee0e914881c5e09b80506c5de4f2
* select: Find the highest fd when filling the fd_setsHolger Hans Peter Freyther2017-04-041-1/+12
| | | | | | | | | | | | | | | Instead of returning maxfd, which is the highest fd ever seen, take the highest we have seen on this iteration. This makes a tiny difference for the osmo-sip-connector and its event loop integration. select.c ignores the return value of this function right now. This was seen while debugging the eventloop integration of the osmo-sip-connector before and after a VTY connection. The fds being polled didn't go down. Change-Id: I1a6d7271273ec08bb511c21b936891bc508843e4
* select: add functionality to check socket statePhilipp Maier2017-02-071-6/+24
| | | | | | | | | | | | osmo_fd_register() is used to register socket file descriptors, after registering a socket, there is no way to test if the socket is still registered or actually registered at all. This commit adds a new function osmo_fd_register_check() that can be used to check in advance, if the socket fd is registered, before performing further operations. Change-Id: I48ec7098d6bba586c81bf0d5c9088108e2c081c6
* osmo_select_main(): drop useless call to osmo_timers_check()Neels Hofmeyr2016-09-281-2/+0
| | | | | | | osmo_timers_check() does nothing more than counting the active timers. It is of no use to count them when not using the return value in any way. Change-Id: I8d35ca90a4c16d6f1c7f9793d663e5479783efed
* Update doxygen annotations in libosmocoreHarald Welte2016-05-051-1/+5
| | | | | This adds and improves doxygen API descriptions all over libosmocore, reducing the 'white spots' that don't have any documentation.
* select: Externalize fd_set filling and dispatchHolger Hans Peter Freyther2016-03-311-32/+51
| | | | | | | | | | | | | | | | To integrate with an external event loop (in this case glib) we need to allow an application to get a filled out fd_set and then dispatch it. osmo_fds and maxfds are static and I decided to keep it that way and instead create two routines to fill the fdset and then one to dispatch the result. The public header file does not include sys/select.h and we can compile the library without select, so I didn't want to require having to include this file, and used void * for the parameter. Mark the routines as inline to avoid a call from the select function. I have confirmed that inlining has an effect on x86 using Debian's gcc-4.9.2-10 compiler
* Add new osmo_fd_get_by_fd() functionHarald Welte2016-03-191-0/+12
| | | | | | This function can be used to obtain the osmo_fd corresponding to a given fd. The latter can be useful when integrating libosmocore main loop with other libraries.
* fix FSF address in sources/headersJaroslav Škarvada2015-11-121-1/+2
| | | | Signed-off-by: Jaroslav Škarvada <jskarvad@redhat.com>
* select.c: Add missing #include lines for string.h and sys/select.hHarald Welte2014-11-141-0/+2
| | | | This is needed on Nuttx.
* select: Fix english in commentHolger Hans Peter Freyther2014-05-151-1/+1
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* doc: Fix the Doxygen section endingsSylvain Munaut2012-04-181-1/+1
| | | | Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
* some more doxygen work (include the notion of modules)Harald Welte2011-08-171-0/+19
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* merge process.[ch] with application.[ch]Harald Welte2011-06-261-0/+9
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* select: use namespace prefix osmo_fd* and osmo_select*Pablo Neira Ayuso2011-05-071-11/+11
| | | | | | | | | Summary of changes: s/struct bsc_fd/struct osmo_fd/g s/bsc_register_fd/osmo_fd_register/g s/bsc_unregister_fd/osmo_fd_unregister/g s/bsc_select_main/osmo_select_main/g
* timer: use namespace prefix osmo_timer*Pablo Neira Ayuso2011-05-071-4/+4
| | | | | | | | | | | | | | Summary of changes: s/struct timer_list/struct osmo_timer_list/g s/bsc_add_timer/osmo_timer_add/g s/bsc_schedule_timer/osmo_timer_schedule/g s/bsc_del_timer/osmo_timer_del/g s/bsc_timer_pending/osmo_timer_pending/g s/bsc_nearest_timer/osmo_timers_nearest/g s/bsc_prepare_timers/osmo_timers_prepare/g s/bsc_update_timers/osmo_timers_update/g s/bsc_timer_check/osmo_timers_check/g
* include: reorganize headers file to include/osmocom/[gsm|core]Pablo Neira Ayuso2011-03-231-3/+3
| | | | | | | | | | | | This patch moves all GSM-specific definitions to include/osmocom/gsm. Moreover, the headers in include/osmocore/ have been moved to include/osmocom/core. This has been proposed by Harald Welte and Sylvain Munaunt. Tested with `make distcheck'. Signed-off-by: Pablo Neira Ayuso <pablo@gnumonks.org>
* select.c: Change license terms from GPLv2 (from ulogd) to GPLv2+Harald Welte2010-10-311-2/+3
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* bsc_fd: Add a build option to be able to debug fd list corruptionHolger Hans Peter Freyther2010-08-061-0/+12
| | | | | | | bsc_register_fd on an already registered fd can corrupt the list in a heavy way and make the select end in an infinite loop, this code will workaround the issue and provide a way to set a breakpoint at the right position in the code.
* select.c: Make the ugly hacker uglier...Holger Hans Peter Freyther2010-04-111-1/+2
| | | | | | | Right now I'm seeing crashes when removing a link and deleting it and I need this hack to make it not crash. We will have to understand if llist_for_each_entry_safe has a bug or if we are doing something bad with the list (anchors not properly initialized).
* fix select.c build (config.h)Harald Welte2010-02-201-0/+2
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* intial checkin of the libosmocore projectHarald Welte2010-02-201-0/+128
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