From 66107648df5e1af6148a0e15b32245a126756d77 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=D0=9F=D0=B5=D0=BB=D0=B8=D0=BF=D0=B5=D0=BD=D0=BA=D0=BE=20?=
 =?UTF-8?q?=D0=98=D0=B2=D0=B0=D0=BD?= <peri4ko@yandex.ru>
Date: Fri, 28 Apr 2017 11:33:11 +0000
Subject: [PATCH] git-svn-id: svn://db.shs.com.ru/pip@485
 12ceb7fc-bf1f-11e4-8940-5bc7170c53b5

---
 src_main/io/pisharedmemory.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src_main/io/pisharedmemory.cpp b/src_main/io/pisharedmemory.cpp
index 84d083a0..f79d488e 100644
--- a/src_main/io/pisharedmemory.cpp
+++ b/src_main/io/pisharedmemory.cpp
@@ -122,9 +122,10 @@ bool PISharedMemory::openDevice() {
 			return false;
 		}
 		PRIVATE->owner = true;
-		ftruncate(fd, dsize);
 		//piCoutObj << "created" << fd;
 	}
+	if (fd >= 0)
+		ftruncate(fd, dsize);
 	PRIVATE->data = mmap(0, dsize, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
 	::close(fd);
 	if (PRIVATE->data == MAP_FAILED) {