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epoll selector starts with reasonable fd set size (1024) and increases in powers of two when needed. This prevents the selector to allocate large amounts of memory at startup on systems with a high RLIMIT_NOFILE setting (#10194)

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Ico Doornekamp 2019-01-09 10:46:23 +01:00 • committed by Andreas Rumpf
commit 0229dfd199
2 changed files with 22 additions and 3 deletions
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lib/pure/selectors.nim
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@ -239,6 +239,9 @@ else:
proc allocSharedArray[T](nsize: int): ptr SharedArray[T] =
result = cast[ptr SharedArray[T]](allocShared0(sizeof(T) * nsize))
proc reallocSharedArray[T](sa: ptr SharedArray[T], nsize: int): ptr SharedArray[T] =
result = cast[ptr SharedArray[T]](reallocShared(sa, sizeof(T) * nsize))
proc deallocSharedArray[T](sa: ptr SharedArray[T]) =
deallocShared(cast[pointer](sa))
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