Apache NuttX is a mature, real-time embedded operating system (RTOS) https://nuttx.apache.org/
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zhanghongyu faa4d7ff8d net/udp: fix conn_unlock not called outside conditional block
Move conn_unlock() call outside the if block in psock_udp_sendto()
to ensure the connection lock is always released before returning,
preventing a potential deadlock when the condition is not met.

Signed-off-by: zhanghongyu <zhanghongyu@xiaomi.com>
2026-04-09 03:04:15 +08:00
.github build.yml: Fix No files were found with the provided path 2026-04-02 06:42:08 +08:00
arch arch/espressif: serialize Wi-Fi RX queue access. 2026-04-08 15:04:31 -03:00
audio include/debug.h: Move to include/nuttx/debug.h 2026-04-07 07:50:06 -03:00
binfmt include/debug.h: Move to include/nuttx/debug.h 2026-04-07 07:50:06 -03:00
boards arch/risc-v: migrate hr timer backend to HAL esp_timer adapter 2026-04-08 09:52:39 +08:00
cmake cmake: add olddefconfig target for CMake builds 2026-04-02 13:16:54 +08:00
crypto include/debug.h: Move to include/nuttx/debug.h 2026-04-07 07:50:06 -03:00
Documentation Documentation/platforms/arm/tiva: add lm3s6965-ek board documentation 2026-04-07 14:51:10 +02:00
drivers drivers/mtd/mx25rxx.c: use 4 byte address for large flash memories. 2026-04-08 09:52:57 +08:00
dummy
fs style: fix checkpatch issues after debug.h move 2026-04-07 07:50:06 -03:00
graphics include/debug.h: Move to include/nuttx/debug.h 2026-04-07 07:50:06 -03:00
include style: fix checkpatch issues after debug.h move 2026-04-07 07:50:06 -03:00
libs include/debug.h: Move to include/nuttx/debug.h 2026-04-07 07:50:06 -03:00
mm include/debug.h: Move to include/nuttx/debug.h 2026-04-07 07:50:06 -03:00
net net/udp: fix conn_unlock not called outside conditional block 2026-04-09 03:04:15 +08:00
openamp openamp: Fix Make style 2026-03-23 18:16:46 -04:00
pass1 Makefile: Remove make depend files by make distclean 2026-02-16 16:27:57 +01:00
sched include/debug.h: Move to include/nuttx/debug.h 2026-04-07 07:50:06 -03:00
syscall Makefile: Remove make depend files by make distclean 2026-02-16 16:27:57 +01:00
tools tools/mksyscall: fix union illegal type for cast 2026-04-08 18:38:39 +08:00
video include/debug.h: Move to include/nuttx/debug.h 2026-04-07 07:50:06 -03:00
wireless include/debug.h: Move to include/nuttx/debug.h 2026-04-07 07:50:06 -03:00
.asf.yaml github: master branch protection tune. 2025-05-07 18:37:13 -05:00
.codespell-ignore-lines net/icmpv6: replace net_lock with conn_lock and conn_lock_dev 2025-12-29 09:42:18 +08:00
.codespellrc codespellrc: add ist to ignorelist 2025-10-14 17:42:01 +08:00
.editorconfig .editorconfig: fix character encoding property specification 2025-11-28 19:12:13 +08:00
.gitignore gitignore: add more vim swap files 2025-06-18 15:44:51 -04:00
.gitmessage docs/contributing: Add a commit message template 2025-06-03 17:33:24 +08:00
.pre-commit-config.yaml pre-commit: enable codespell checks 2025-05-05 12:34:39 +08:00
.yamllint
AUTHORS AUTHORS: add Donny Jiuzhu 2026-02-25 10:17:40 +01:00
CMakeLists.txt cmake: Enhance .config handling and comparison logic 2026-02-26 09:46:02 -03:00
CONTRIBUTING.md docs: Fix typos, formatting, and numbering in README.md and CONTRIBUTING.md. 2026-03-23 12:05:24 +01:00
INVIOLABLES.md
Kconfig tools/stackusage.py: use toolchain binaries instead of Python libraries 2026-03-17 11:26:44 -03:00
LICENSE style: fix spelling in code comments and strings 2025-05-23 10:48:41 +08:00
Makefile tools: migrate to SPDX identifier 2024-09-10 23:11:11 +08:00
NOTICE
README.md docs: Fix typos, formatting, and numbering in README.md and CONTRIBUTING.md. 2026-03-23 12:05:24 +01:00
ReleaseNotes Documentation: move ReleaseNotes 2023-09-26 20:41:00 +08:00

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Apache NuttX is a real-time operating system (RTOS) with an emphasis on standards compliance and small footprint. Scalable from 8-bit to 64-bit microcontroller environments, the primary governing standards in NuttX are POSIX and ANSI standards. Additional standard APIs from Unix and other common RTOSs (such as VxWorks) are adopted for functionality not available under these standards, or for functionality that is not appropriate for deeply-embedded environments (such as fork()).

For brevity, many parts of the documentation will refer to Apache NuttX as simply NuttX.

Getting Started

First time on NuttX? Read the Getting Started guide! If you don't have a board available, NuttX has its own simulator that you can run on terminal.

Documentation

You can find the current NuttX documentation on the Documentation Page.

Alternatively, you can build the documentation yourself by following the Documentation Build Instructions.

The old NuttX documentation is still available in the Apache wiki.

Supported Boards

NuttX supports a wide variety of platforms. See the full list on the Supported Platforms page.

Contributing

If you wish to contribute to the NuttX project, read the Contributing guidelines for information on Git usage, coding standard, workflow and the NuttX principles.

License

The code in this repository is under either the Apache 2 license, or a license compatible with the Apache 2 license. See the License Page for more information.