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nuttx/include
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wangchengdong ed1cb6f9b8 sched/hrtimer: Add high-resolution timer support for NuttX 
NuttX provides the wdog module to implement timers for the scheduler.
While it is lightweight and efficient, wdog only supports tick-level timers,
typically in milliseconds. Although the tick duration can be configured,
setting it to microsecond or nanosecond resolution is not practical.
Doing so may cause an interrupt storm, where the CPU is constantly
occupied handling tick interrupts.

To address this limitation, a new hrtimer module is introduced.
It coexists with the wdog module, providing both tick-level timers
for wdog and high-resolution timers (nanosecond-level) directly to users.

Signed-off-by: Chengdong Wang <wangchengdong@lixiang.com>
2025-12-18 18:36:28 +08:00
..
android include: migrate to SPDX identifier 2024-10-04 08:18:42 +08:00
arpa include: migrate to SPDX identifier 2024-10-04 08:18:42 +08:00
crypto crypto/hmac: Fix typo in function implementation names 2025-08-13 23:11:02 +08:00
cxx cxx/cstddef: expose 'max_align_t' 2025-12-09 18:03:10 +08:00
net include: modify for support socat, so need add some macro same as linux 2025-12-10 23:44:14 +08:00
netinet tcp.h: add TCP_CORK definition 2025-12-18 15:38:17 +08:00
netpacket netpacket/sockaddr_ll: Add valid packet types for sll_pkttype 2024-12-31 09:41:39 +08:00
nuttx sched/hrtimer: Add high-resolution timer support for NuttX 2025-12-18 18:36:28 +08:00
ssp include: migrate to SPDX identifier 2024-10-04 08:18:42 +08:00
sys net/ethernet: add timestamp for socket packet 2025-12-10 23:44:14 +08:00
.gitignore include/.gitignore: add openlibm to gitignore 2024-10-13 02:27:28 +08:00
aio.h include: migrate to SPDX identifier 2024-10-04 08:18:42 +08:00
alloca.h include: migrate to SPDX identifier 2024-10-04 08:18:42 +08:00
assert.h assert: add header files to resolve compile failed 2024-10-12 09:29:37 +08:00
byteswap.h include: migrate to SPDX identifier 2024-10-04 08:18:42 +08:00
ctype.h libcxx: fix compile error 2024-10-23 09:42:57 +08:00
debug.h libc/stream: Support lowsyslog. 2025-04-02 12:01:46 +08:00
dirent.h include: migrate to SPDX identifier 2024-10-04 08:18:42 +08:00
dlfcn.h include: migrate to SPDX identifier 2024-10-04 08:18:42 +08:00
dsp.h style: fix spelling in code comments and strings 2025-05-23 10:48:41 +08:00
dspb16.h style: fix spelling in code comments and strings 2025-05-23 10:48:41 +08:00
elf.h modlib:Standardized module loading method 2024-10-05 15:22:02 +08:00
elf32.h modlib:Standardized module loading method 2024-10-05 15:22:02 +08:00
elf64.h modlib:Standardized module loading method 2024-10-05 15:22:02 +08:00
endian.h include: migrate to SPDX identifier 2024-10-04 08:18:42 +08:00
err.h include: migrate to SPDX identifier 2024-10-04 08:18:42 +08:00
errno.h include: migrate to SPDX identifier 2024-10-04 08:18:42 +08:00
execinfo.h sched: support backtrace record 2024-10-11 00:37:27 +08:00
fcntl.h drivers/fs: Control the behavior of FTL by passing oflags during the open process. 2025-07-16 14:11:41 +08:00
fixedmath.h style: fix spelling in code comments and strings 2025-05-23 10:48:41 +08:00
fnmatch.h include: migrate to SPDX identifier 2024-10-04 08:18:42 +08:00
ftw.h include: migrate to SPDX identifier 2024-10-04 08:18:42 +08:00
gcov.h gcov: Refactoring the implementation framework of gcov 2025-07-03 00:17:58 +08:00
getopt.h include: migrate to SPDX identifier 2024-10-04 08:18:42 +08:00
glob.h include: migrate to SPDX identifier 2024-10-04 08:18:42 +08:00
grp.h include: migrate to SPDX identifier 2024-10-04 08:18:42 +08:00
hex2bin.h include: migrate to SPDX identifier 2024-10-04 08:18:42 +08:00
iconv.h include: migrate to SPDX identifier 2024-10-04 08:18:42 +08:00
ifaddrs.h include: migrate to SPDX identifier 2024-10-04 08:18:42 +08:00
imx_container.h arch/arm64/imx9: Add ROMAPI and AHAB support for i.MX9 2025-05-09 19:21:17 +08:00
inttypes.h inttype.h: add PRIuTM(time_t) to handle TIME64 & TIME32 print compatible 2025-12-01 10:07:49 +01:00
iso646.h include: migrate to SPDX identifier 2024-10-04 08:18:42 +08:00
langinfo.h include: migrate to SPDX identifier 2024-10-04 08:18:42 +08:00
libgen.h include: migrate to SPDX identifier 2024-10-04 08:18:42 +08:00
libintl.h include: migrate to SPDX identifier 2024-10-04 08:18:42 +08:00
limits.h Add LINE_MAX configuration 2024-12-26 13:25:19 +08:00
locale.h style/FAR: remove FAR qualifier 2025-11-10 10:56:29 +01:00
lzf.h include: migrate to SPDX identifier 2024-10-04 08:18:42 +08:00
malloc.h memdump: add dump for the orphan nodes(neighbor of free node) 2024-10-08 23:55:59 +08:00
mqueue.h [POSIX][Bug] mqueue.h: Include file does not conform the standard 2024-12-09 21:21:09 +08:00
netdb.h include: migrate to SPDX identifier 2024-10-04 08:18:42 +08:00
nl_types.h include: migrate to SPDX identifier 2024-10-04 08:18:42 +08:00
nxflat.h include: migrate to SPDX identifier 2024-10-04 08:18:42 +08:00
obstack.h libs/libc/obstack: fix allocated chunk overrun due to invalid limit 2024-10-30 11:53:18 -03:00
poll.h include: migrate to SPDX identifier 2024-10-04 08:18:42 +08:00
pthread.h style/FAR: remove FAR qualifier 2025-11-10 10:56:29 +01:00
pty.h include: migrate to SPDX identifier 2024-10-04 08:18:42 +08:00
pwd.h libs/libc/pwd: add new member to passwd struct 2024-10-16 11:15:25 +08:00
regex.h include: migrate to SPDX identifier 2024-10-04 08:18:42 +08:00
resolv.h include: migrate to SPDX identifier 2024-10-04 08:18:42 +08:00
sched.h sched: remove csection and reduce the interrupt disabling time in sched_[un]lock 2025-01-23 19:58:49 +08:00
search.h include/search: migrate to SPDX identifier 2024-12-16 14:18:35 +08:00
semaphore.h sched/semaphore: add support to customize semaphore max allowed value 2025-09-04 09:48:34 +08:00
shadow.h libs/libc/unistd: add getspnam function 2024-10-16 11:15:25 +08:00
signal.h signal: add include/sys/signal.h to the signal 2024-12-20 11:46:14 -03:00
spawn.h include: migrate to SPDX identifier 2024-10-04 08:18:42 +08:00
stdbool.h include: migrate to SPDX identifier 2024-10-04 08:18:42 +08:00
stddef.h include: migrate to SPDX identifier 2024-10-04 08:18:42 +08:00
stdint.h include: migrate to SPDX identifier 2024-10-04 08:18:42 +08:00
stdio.h stdio: disable fortify of snprintf/sprintf for clang 2025-12-09 08:23:14 -03:00
stdlib.h include/stdlib.h: define system()'s prototype for the flat build 2025-02-07 09:03:14 +08:00
stdnoreturn.h include: migrate to SPDX identifier 2024-10-04 08:18:42 +08:00
string.h fix misspelled names in locally scoped code 2025-05-15 10:12:12 +08:00
strings.h libc: remove reference to non-existent readme 2025-10-11 17:07:51 -04:00
syscall.h include: migrate to SPDX identifier 2024-10-04 08:18:42 +08:00
syslog.h drivers/syslog: Add RFC 5424 protocol support 2025-06-13 20:26:57 +08:00
termios.h include: modify for support socat, so need add some macro same as linux 2025-12-10 23:44:14 +08:00
threads.h include/threads.h: Replace thrd_ defines by actual function definitions 2024-12-19 21:56:02 +08:00
time.h include: migrate to SPDX identifier 2024-10-04 08:18:42 +08:00
unistd.h libc/unistd: Replace pipe() macro with proper function implementation 2025-11-26 17:18:13 +08:00
utime.h include: migrate to SPDX identifier 2024-10-04 08:18:42 +08:00
uuid.h include: migrate to SPDX identifier 2024-10-04 08:18:42 +08:00
wait.h wait: add wait.h header file 2024-12-20 11:46:14 -03:00
wchar.h fix misspelled names in locally scoped code 2025-05-15 10:12:12 +08:00
wctype.h include: migrate to SPDX identifier 2024-10-04 08:18:42 +08:00