31 lines
1.5 KiB
Nim
31 lines
1.5 KiB
Nim
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# Weave
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# Copyright (c) 2019 Mamy André-Ratsimbazafy
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# Licensed and distributed under either of
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# * MIT license (license terms in the root directory or at http://opensource.org/licenses/MIT).
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# * Apache v2 license (license terms in the root directory or at http://www.apache.org/licenses/LICENSE-2.0).
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# at your option. This file may not be copied, modified, or distributed except according to those terms.
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import winlean
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# Technically in <synchapi.h> but MSVC complains with
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# @m..@s..@sweave@sscheduler.nim.cpp
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# C:\Program Files (x86)\Windows Kits\10\include\10.0.17763.0\um\winnt.h(154): fatal error C1189: #error: "No Target Architecture
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type
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SynchronizationBarrier*{.importc:"SYNCHRONIZATION_BARRIER", header:"<windows.h>".} = object
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var SYNCHRONIZATION_BARRIER_FLAGS_NO_DELETE* {.importc, header: "<windows.h>".}: DWORD
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## Skip expensive checks on barrier enter if a barrier is never deleted.
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proc EnterSynchronizationBarrier*(lpBarrier: var SynchronizationBarrier, dwFlags: DWORD): WINBOOL {.importc, stdcall, header: "<windows.h>".}
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proc DeleteSynchronizationBarrier*(lpBarrier: ptr SynchronizationBarrier) {.importc, stdcall, header: "<windows.h>".}
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proc InitializeSynchronizationBarrier*(lpBarrier: var SynchronizationBarrier, lTotalThreads: LONG, lSpinCount: LONG): WINBOOL {.importc, stdcall, header: "<windows.h>".}
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when isMainModule:
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import os
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var x{.noinit.}: SynchronizationBarrier
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let err = InitializeSynchronizationBarrier(x, 2, -1)
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if err != 1:
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assert err == 0
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raiseOSError(osLastError())
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