From 296d03858c9f41ccfe0b736c0556a284cef55b10 Mon Sep 17 00:00:00 2001
From: KhabarlakKonstantin <habarlack@gmail.com>
Date: Wed, 28 Nov 2018 13:36:44 +0200
Subject: [PATCH] Fix deadlock in named_condition::notify

Avoid deadlock in named_condition::notify when
BOOST_INTERPROCESS_ENABLE_TIMEOUT_WHEN_LOCKING is defined
---
 include/boost/interprocess/sync/spin/mutex.hpp | 16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)

diff --git a/include/boost/interprocess/sync/spin/mutex.hpp b/include/boost/interprocess/sync/spin/mutex.hpp
index 7663673..ad61ddd 100644
--- a/include/boost/interprocess/sync/spin/mutex.hpp
+++ b/include/boost/interprocess/sync/spin/mutex.hpp
@@ -64,7 +64,21 @@ inline spin_mutex::~spin_mutex()
 }
 
 inline void spin_mutex::lock(void)
-{  return ipcdetail::try_based_lock(*this); }
+{
+#ifdef BOOST_INTERPROCESS_ENABLE_TIMEOUT_WHEN_LOCKING
+	boost::posix_time::ptime wait_time
+		= microsec_clock::universal_time()
+		+ boost::posix_time::milliseconds(BOOST_INTERPROCESS_TIMEOUT_WHEN_LOCKING_DURATION_MS);
+	if (!timed_lock(wait_time))
+	{
+		throw interprocess_exception(timeout_when_locking_error
+			, "Interprocess mutex timeout when locking. Possible deadlock: "
+			"owner died without unlocking?");
+	}
+#else
+   return ipcdetail::try_based_lock(*this);
+#endif
+}
 
 inline bool spin_mutex::try_lock(void)
 {