From 6d5761d488583cacde5a03e1d306fc5fb185fb1c Mon Sep 17 00:00:00 2001 From: slangmgh <37659406+slangmgh@users.noreply.github.com> Date: Tue, 12 May 2020 01:17:37 +0800 Subject: [PATCH] Fix #14289 (#14304) [backport] (cherry picked from commit 76f7e958141eabc6dc317189fa12c123584e1b6e) --- lib/pure/asyncdispatch.nim | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/lib/pure/asyncdispatch.nim b/lib/pure/asyncdispatch.nim index 4ea97259df..ce3d1214bd 100644 --- a/lib/pure/asyncdispatch.nim +++ b/lib/pure/asyncdispatch.nim @@ -997,10 +997,11 @@ when defined(windows) or defined(nimdoc): proc addProcess*(pid: int, cb: Callback) = ## Registers callback ``cb`` to be called when process with process ID ## ``pid`` exited. + const NULL = Handle(0) let p = getGlobalDispatcher() let procFlags = SYNCHRONIZE var hProcess = openProcess(procFlags, 0, pid.DWORD) - if hProcess == INVALID_HANDLE_VALUE: + if hProcess == NULL: raiseOSError(osLastError()) var pcd = cast[PostCallbackDataPtr](allocShared0(sizeof(PostCallbackData)))