From e5bb1ab2b2ebcafaea8888c325d2ad7052de919f Mon Sep 17 00:00:00 2001
From: Martin Ridgers <martin.ridgers@epicgames.com>
Date: Tue, 9 Nov 2021 16:51:14 +0100
Subject: Implemented ProcessHandle::IsRunning() for Linux

---
 zencore/thread.cpp | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

(limited to 'zencore/thread.cpp')

diff --git a/zencore/thread.cpp b/zencore/thread.cpp
index 5c6658b35..3cb126d87 100644
--- a/zencore/thread.cpp
+++ b/zencore/thread.cpp
@@ -344,10 +344,21 @@ ProcessHandle::Initialize(int Pid)
 bool
 ProcessHandle::IsRunning() const
 {
+	bool bActive = false;
+
+#if ZEN_PLATFORM_WINDOWS
 	DWORD ExitCode = 0;
 	GetExitCodeProcess(m_ProcessHandle, &ExitCode);
+	bActive = (ExitCode == STILL_ACTIVE);
+#elif ZEN_PLATFORM_LINUX
+	StringBuilder<64> ProcPath;
+	ProcPath << "/proc/" << m_Pid;
+	bActive = (access(ProcPath.c_str(), F_OK) != 0);
+#else
+#	error Check process control on this platform
+#endif
 
-	return ExitCode == STILL_ACTIVE;
+	return bActive;
 }
 
 bool
-- 
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