From ab1d4a5d58af8452b26f57f244bcd0d39b409c5e Mon Sep 17 00:00:00 2001 From: Century Systems Date: Thu, 23 Feb 2023 03:53:04 +0900 Subject: ioselectors_epoll: for NuttX, limit initial numFD to configured value. (#21421) ioselectors: ioselectors_epoll: for NuttX, limit initial numFD to configured value. In the NuttX build config, there is a setting called "FS_NEPOLL_DESCRIPTORS". -------- config FS_NEPOLL_DESCRIPTORS int "Maximum number of default epoll descriptors for epoll_create1(2)" default 8 ---help--- The maximum number of default epoll descriptors for epoll_create1(2) -------- For NuttX, change the number of fd arrays allocated by newSelector() to that value. Signed-off-by: Takeyoshi Kikuchi --- lib/pure/ioselects/ioselectors_epoll.nim | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) (limited to 'lib/pure/ioselects') diff --git a/lib/pure/ioselects/ioselectors_epoll.nim b/lib/pure/ioselects/ioselectors_epoll.nim index 8526eb8a3..08cb6ed74 100644 --- a/lib/pure/ioselects/ioselectors_epoll.nim +++ b/lib/pure/ioselects/ioselectors_epoll.nim @@ -72,11 +72,16 @@ type SelectEvent* = ptr SelectEventImpl proc newSelector*[T](): Selector[T] = + proc initialNumFD(): int {.inline.} = + when defined(nuttx): + result = NEPOLL_MAX + else: + result = 1024 # Retrieve the maximum fd count (for current OS) via getrlimit() var maxFD = maxDescriptors() doAssert(maxFD > 0) # Start with a reasonable size, checkFd() will grow this on demand - const numFD = 1024 + let numFD = initialNumFD() var epollFD = epoll_create1(O_CLOEXEC) if epollFD < 0: -- cgit 1.4.1-2-gfad0