Common library for all Osmocom projects (libosmocore, libosmogsm, libosmovty, libosmogb, libosmosim, libosmousb, ...) https://osmocom.org/projects/libosmocore
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Andreas Eversberg e8f05481ea Prevent poll() in select.c to timeout too early
Adjust osmo_timers_nearest_ms() to round up the remaining time.

Note that poll() has a granularity of 1 millisecond.

Previously, when rounding down the remaining time, osmo_select_main()
would return too early, before the nearest timer timed out.
Consequently, the main loop repeatedly called osmo_select_main() until
the timer actually timed out, resulting in excessive CPU usage.
By modifying osmo_timers_nearest_ms() to round up the remaining time,
we ensure accurate timeout calculations, preventing unnecessary CPU
consumption during the main loop.

The patch only applies to non-embedded version of libosmocore, because
the impact on embedded systems is not verified tested.

Related: OS#6339
Change-Id: I79de77c79af4d50d1eb9ca0c5417123ff760dca3
2024-01-30 12:06:58 +00:00
contrib Bump version: 1.8.0.252-13c29 → 1.9.0 2023-09-12 13:15:54 +02:00
debian Bump version: 1.8.0.252-13c29 → 1.9.0 2023-09-12 13:15:54 +02:00
doc merge_doc.xsl: move to osmo-gsm-manuals.git 2018-11-12 14:07:05 +01:00
include gsm: add more definitions from Table 10.5.112/3GPP TS 24.008 2024-01-25 17:23:17 +00:00
m4 Add code coverage support 2019-11-30 02:17:23 +00:00
src Prevent poll() in select.c to timeout too early 2024-01-30 12:06:58 +00:00
tapset support for stats static userspace probes via systemtap 2021-02-22 09:58:00 +01:00
tests tests/Makefile.am: do not add files to EXTRA_DIST conditionally 2024-01-29 00:19:30 +07:00
utils gsm: Improve the TCH/H2.4 coding routines 2023-07-07 16:06:26 +02:00
.checkpatch.conf libosmogsm: Add support for TUAK authentication algorithm 2023-06-02 10:44:05 +02:00
.gitignore .gitignore: add include/osmocom/core/socket_compat.h 2023-09-04 17:47:08 +07:00
.gitreview add .gitreview 2016-05-19 06:39:13 +00:00
.mailmap Add .mailmap file for mapping mail addresses in shortlog 2016-08-08 13:12:17 +02:00
COPYING add GPL to project source 2010-02-21 09:21:30 +01:00
Doxyfile.codec.in create libosmoisdn sub-library 2023-01-21 22:41:57 +01:00
Doxyfile.coding.in create libosmoisdn sub-library 2023-01-21 22:41:57 +01:00
Doxyfile.core.in create libosmoisdn sub-library 2023-01-21 22:41:57 +01:00
Doxyfile.ctrl.in create libosmoisdn sub-library 2023-01-21 22:41:57 +01:00
Doxyfile.gb.in create libosmoisdn sub-library 2023-01-21 22:41:57 +01:00
Doxyfile.gsm.in create libosmoisdn sub-library 2023-01-21 22:41:57 +01:00
Doxyfile.isdn.in create libosmoisdn sub-library 2023-01-21 22:41:57 +01:00
Doxyfile.sim.in doxygen: also generate documentation for libosmo{sim,usb} 2023-02-27 11:14:40 +00:00
Doxyfile.usb.in doxygen: also generate documentation for libosmo{sim,usb} 2023-02-27 11:14:40 +00:00
Doxyfile.vty.in create libosmoisdn sub-library 2023-01-21 22:41:57 +01:00
Makefile.am doxygen: also generate documentation for libosmo{sim,usb} 2023-02-27 11:14:40 +00:00
README.md update git URLs (git -> https; gitea) 2022-06-17 23:20:26 +02:00
TODO-RELEASE gsup: Convert PDP-Type IE to PDP-Address IE 2024-01-20 00:31:28 +01:00
configure.ac Disable uring when building for embedded 2023-11-24 16:13:07 +00:00
git-version-gen add git-version-gen magic to automatically generate package version 2010-03-23 00:30:19 +08:00
libosmocodec.pc.in clean-up pkg-config files: Make use of "Requires" as documented 2022-03-24 14:57:22 +00:00
libosmocoding.pc.in clean-up pkg-config files: Make use of "Requires" as documented 2022-03-24 14:57:22 +00:00
libosmocore.pc.in configure --enable-libmnl: Add libmnl to libosmocore.pc.in Requires 2023-01-25 17:12:07 +01:00
libosmoctrl.pc.in clean-up pkg-config files: Make use of "Requires" as documented 2022-03-24 14:57:22 +00:00
libosmogb.pc.in libosmogb.pc.in: Fix missing dependency on libosmogsm 2023-02-20 12:21:30 +01:00
libosmogsm.pc.in create libosmoisdn sub-library 2023-01-21 22:41:57 +01:00
libosmoisdn.pc.in create libosmoisdn sub-library 2023-01-21 22:41:57 +01:00
libosmosim.pc.in clean-up pkg-config files: Make use of "Requires" as documented 2022-03-24 14:57:22 +00:00
libosmousb.pc.in clean-up pkg-config files: Make use of "Requires" as documented 2022-03-24 14:57:22 +00:00
libosmovty.pc.in libosmo{gb,vty}.pc.in: Add talloc to 'Requires' 2022-03-25 09:45:42 +00:00
osmo-release.mk Fixup severe build performance issues 2017-10-04 16:26:37 +02:00
osmo-release.sh osmo-release.sh: make it a bit more user friendly 2024-01-28 18:02:17 +07:00

README.md

libosmocore - set of Osmocom core libraries

This repository contains a set of C-language libraries that form the core infrastructure of many Osmocom Open Source Mobile Communications projects.

Historically, a lot of this code was developed as part of the OpenBSC project, but which are of a more generic nature and thus useful to (at least) other programs that we develop in the sphere of Free Software / Open Source mobile communications.

There is no clear scope of it. We simply move all shared code between the various Osmocom projects in this library to avoid code duplication.

The libosmocore.git repository build multiple libraries:

  • libosmocore contains some general-purpose functions like select-loop abstraction, message buffers, timers, linked lists
  • libosmovty contains routines related to the interactive command-line interface called VTY
  • libosmogsm contains definitions and helper code related to GSM protocols
  • libosmoctrl contains a shared implementation of the Osmocom control interface
  • libosmogb contains an implementation of the Gb interface with its NS/BSSGP protocols
  • libosmocodec contains an implementation of GSM voice codecs
  • libosmocoding contains an implementation of GSM channel coding
  • libosmosim contains infrastructure to interface SIM/UICC/USIM cards

Homepage

The official homepage of the project is https://osmocom.org/projects/libosmocore/wiki/Libosmocore

GIT Repository

You can clone from the official libosmocore.git repository using

git clone https://gitea.osmocom.org/osmocom/libosmocore

There is a web interface at https://gitea.osmocom.org/osmocom/libosmocore

Documentation

Doxygen-generated API documentation is generated during the build process, but also available online for each of the sub-libraries at https://ftp.osmocom.org/api/latest/libosmocore/

Mailing List

Discussions related to libosmocore are happening on the openbsc@lists.osmocom.org mailing list, please see https://lists.osmocom.org/mailman/listinfo/openbsc for subscription options and the list archive.

Please observe the Osmocom Mailing List Rules when posting.

Contributing

Our coding standards are described at https://osmocom.org/projects/cellular-infrastructure/wiki/Coding_standards

We us a gerrit based patch submission/review process for managing contributions. Please see https://osmocom.org/projects/cellular-infrastructure/wiki/Gerrit for more details

The current patch queue for libosmocore can be seen at https://gerrit.osmocom.org/#/q/project:libosmocore+status:open