Dup command-buffer SHM handle before auto-closing.

base/shared_memory_posix.cc

 // Copyright (c) 2010 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "base/shared_memory.h"
 
 #include <errno.h>
 #include <fcntl.h>
 #include <sys/mman.h>
 #include <sys/stat.h>
@@ skipping 61 matching lines @@
 }
 
 // static
 SharedMemoryHandle SharedMemory::NULLHandle() {
   return SharedMemoryHandle();
 }
 
 // static
 void SharedMemory::CloseHandle(const SharedMemoryHandle& handle) {
   DCHECK(handle.fd >= 0);
-  close(handle.fd);
+  if (HANDLE_EINTR(close(handle.fd)) < 0)
+    PLOG(ERROR) << "close";
 }
 
 bool SharedMemory::CreateAndMapAnonymous(uint32 size) {
   return CreateAnonymous(size) && Map(size);
 }
 
 bool SharedMemory::CreateAnonymous(uint32 size) {
   return CreateNamed("", false, size);
 }
 
@@ skipping 129 matching lines @@
 }
 
 SharedMemoryHandle SharedMemory::handle() const {
   return FileDescriptor(mapped_file_, false);
 }
 
 void SharedMemory::Close() {
   Unmap();
 
   if (mapped_file_ > 0) {
-    close(mapped_file_);
+    if (HANDLE_EINTR(close(mapped_file_)) < 0)
+      PLOG(ERROR) << "close";
     mapped_file_ = -1;
   }
 }
 
 void SharedMemory::Lock() {
   LockOrUnlockCommon(F_LOCK);
 }
 
 void SharedMemory::Unlock() {
   LockOrUnlockCommon(F_ULOCK);
@@ skipping 73 matching lines @@
   new_handle->fd = new_fd;
   new_handle->auto_close = true;
 
   if (close_self)
     Close();
 
   return true;
 }
 
 }  // namespace base