mirror of
https://github.com/janet-lang/janet
synced 2026-04-17 04:11:26 +00:00
32d75c9e49
For unclosable files, no need to dup, but for closable files we can get a resource leak. Valgrind and similar tools won't catch this but IO will unexpectedly start going to the wrong descriptor if a file was transferred to a new thread, closed, and then a new file was created.
105 lines
3.4 KiB
Janet
105 lines
3.4 KiB
Janet
# Copyright (c) 2026 Calvin Rose & contributors
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#
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# Permission is hereby granted, free of charge, to any person obtaining a copy
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# of this software and associated documentation files (the "Software"), to
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# deal in the Software without restriction, including without limitation the
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# rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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# sell copies of the Software, and to permit persons to whom the Software is
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# furnished to do so, subject to the following conditions:
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#
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# The above copyright notice and this permission notice shall be included in
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# all copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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# IN THE SOFTWARE.
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(import ./helper :prefix "" :exit true)
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(start-suite)
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# Issue #1629
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(def thread-channel (ev/thread-chan 100))
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(def super (ev/thread-chan 10))
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(defn worker []
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(while true
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(def item (ev/take thread-channel))
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(when (= item :deadline)
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(ev/deadline 0.1 nil (fiber/current) true))))
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(ev/thread worker nil :n super)
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(ev/give thread-channel :item)
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(ev/sleep 0.05)
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(ev/give thread-channel :item)
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(ev/sleep 0.05)
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(ev/give thread-channel :deadline)
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(ev/sleep 0.05)
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(ev/give thread-channel :item)
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(ev/sleep 0.05)
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(ev/give thread-channel :item)
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(ev/sleep 0.15)
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(assert (deep= '(:error "deadline expired" nil) (ev/take super)) "deadline expirataion")
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# Another variant
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(def thread-channel (ev/thread-chan 100))
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(def super (ev/thread-chan 10))
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(defn worker []
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(while true
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(def item (ev/take thread-channel))
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(when (= item :deadline)
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(ev/deadline 0.1))))
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(ev/thread worker nil :n super)
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(ev/give thread-channel :deadline)
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(ev/sleep 0.2)
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(assert (deep= '(:error "deadline expired" nil) (ev/take super)) "deadline expirataion")
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# Issue #1705 - ev select
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(def supervisor (ev/chan 10))
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(def ch (ev/chan))
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(def ch2 (ev/chan))
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(ev/go |(do
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(ev/select ch ch2)
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(:close ch)
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"close ch...")
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nil supervisor)
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(ev/go |(do
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(ev/sleep 0.05)
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(:close ch2)
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"close ch2...")
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nil supervisor)
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(assert (let [[status] (ev/take supervisor)] (= status :ok)) "status 1 ev/select")
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(assert (let [[status] (ev/take supervisor)] (= status :ok)) "status 2 ev/select")
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(ev/sleep 0.1) # can we do better?
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(assert (= 0 (ev/count supervisor)) "empty supervisor")
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# Issue #1707
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(def f (coro (repeat 10 (yield 1))))
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(resume f)
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(assert-error "cannot schedule non-new fiber"
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(ev/go f))
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# IO file copying
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(os/mkdir "tmp")
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(def f-original (file/open "tmp/out.txt" :wb))
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(xprin f-original "hello\n")
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(file/flush f-original)
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(ev/do-thread
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# Closes a COPY of the original file, otherwise we get a user-after-close file descriptor
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(:close f-original))
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(def g-original (file/open "tmp/out2.txt" :wb))
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(xprin g-original "world1\n")
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(xprin f-original "world2\n")
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(:close f-original)
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(xprin g-original "abc\n")
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(:close g-original)
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(assert (deep= @"hello\nworld2\n" (slurp "tmp/out.txt")) "file threading 1")
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(assert (deep= @"world1\nabc\n" (slurp "tmp/out2.txt")) "file threading 2")
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(end-suite)
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