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chao an 42427e9e29 sched/taskfiles: skip unnecessary file open/close operations to improve performance
The task files should consult the "spawn action" and "O_CLOEXEC flags"
to determine further whether the file should be duplicated.

This PR will further optimize file list duplicating to avoid the performance
regression caused by additional file operations.

Signed-off-by: chao an <anchao@xiaomi.com>
2023-11-16 07:30:36 -08:00
.github build(deps): bump docker/build-push-action from 4 to 5 2023-09-18 13:33:40 +08:00
arch arch: Disable ARCH_HAVE_FORK for arm64 as a precaution 2023-11-16 00:35:43 -08:00
audio Documentation: remove all migrated READMEs 2023-10-29 21:03:54 -03:00
binfmt sched/taskfiles: skip unnecessary file open/close operations to improve performance 2023-11-16 07:30:36 -08:00
boards boards: sabre-6quad: Fix cxxtest issue 2023-11-15 03:52:26 -08:00
cmake cmake:fix invalid configs when export defconfig and .config 2023-08-29 09:51:20 +08:00
crypto sched: explicitly select the cpuload clock source configuration 2023-11-01 09:27:56 +08:00
Documentation xtensa/esp32s3: Add XTWDT support 2023-11-14 19:42:33 -03:00
drivers adjtime: Rewrite implementation to work for RTC and tickless kernel 2023-11-14 19:47:40 -08:00
dummy build: add initial cmake build system 2023-07-08 13:50:48 +08:00
fs sched/taskfiles: skip unnecessary file open/close operations to improve performance 2023-11-16 07:30:36 -08:00
graphics Documentation: remove all migrated READMEs 2023-10-29 21:03:54 -03:00
include sched/taskfiles: skip unnecessary file open/close operations to improve performance 2023-11-16 07:30:36 -08:00
libs Fix improper handling of 64 bit types for libvsprintf 2023-11-15 18:37:43 -08:00
mm mm: free delay list when exceeding specified count 2023-11-15 12:05:20 +01:00
net igmp: call IFF_SET_IPv4 when igmp_send 2023-11-16 07:29:48 -08:00
openamp add remote poweroff support 2023-09-20 00:42:02 +08:00
pass1 passl: Author Gregory Nutt: update licenses to Apache 2021-02-09 01:21:53 -08:00
sched sched/taskfiles: skip unnecessary file open/close operations to improve performance 2023-11-16 07:30:36 -08:00
syscall task/pthread_cancelpt: Move cancel point handling to libc, data to TLS 2023-11-15 08:52:04 -08:00
tools Revert "tools/ci: Skip build sabre-6quad:libcxx temporarily" 2023-11-15 03:52:26 -08:00
video build: add initial cmake build system 2023-07-08 13:50:48 +08:00
wireless wireless/bluetooth: Add option to set the HCI TX thread affinity 2023-10-24 22:41:44 +08:00
.asf.yaml feat: add a GitHub action to lint the YAML files 2020-12-15 09:52:04 -06:00
.gitignore tools/ci: migrate some ci build configurations to CMake 2023-07-15 23:32:36 +08:00
.yamllint feat: add a GitHub action to lint the YAML files 2020-12-15 09:52:04 -06:00
AUTHORS AUTHORS: add Tomek CEDRO to the list 2023-03-07 14:15:55 +01:00
CMakeLists.txt cmake: correct cmake rule file name 2023-10-21 11:00:27 +08:00
CONTRIBUTING.md Remove the tail spaces from all files except Documentation 2023-02-26 13:24:24 -08:00
INVIOLABLES.md
Kconfig debug/assert: decouple configuration of show file name feature 2023-10-20 02:22:48 +08:00
LICENSE libc: Remove the unused lib_libdtoa.c 2023-10-23 20:06:34 -03:00
Makefile tools:fix some error use of shell command in Windows native build 2022-11-06 16:41:49 +08:00
NOTICE Remove the double blank line from source files 2022-02-20 20:10:14 +01:00
README.md Gathering community recommendations 2023-10-28 13:55:56 +08:00
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.