Move eintr_wrapper.h from base to base/posix

Review URL: https://codereview.chromium.org/11366229

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@167739 0039d316-1c4b-4281-b951-d872f2087c98

3 files changed, 35 insertions, 2 deletions

diff --git a/base/posix/eintr_wrapper.h b/base/posix/eintr_wrapper.h
new file mode 100644
index 0000000..1f3b59a
--- /dev/null
+++ b/base/posix/eintr_wrapper.h
@@ -0,0 +1,33 @@
+// Copyright (c) 2012 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.
+
+// This provides a wrapper around system calls which may be interrupted by a
+// signal and return EINTR. See man 7 signal.
+//
+// On Windows, this wrapper macro does nothing.
+
+#ifndef BASE_POSIX_EINTR_WRAPPER_H_
+#define BASE_POSIX_EINTR_WRAPPER_H_
+
+#include "build/build_config.h"
+
+#if defined(OS_POSIX)
+
+#include <errno.h>
+
+#define HANDLE_EINTR(x) ({ \
+  typeof(x) __eintr_result__; \
+  do { \
+    __eintr_result__ = (x); \
+  } while (__eintr_result__ == -1 && errno == EINTR); \
+  __eintr_result__;\
+})
+
+#else
+
+#define HANDLE_EINTR(x) (x)
+
+#endif  // OS_POSIX
+
+#endif  // BASE_POSIX_EINTR_WRAPPER_H_
diff --git a/base/posix/file_descriptor_shuffle.cc b/base/posix/file_descriptor_shuffle.cc
index 0dde958..b5b7339 100644
--- a/base/posix/file_descriptor_shuffle.cc
+++ b/base/posix/file_descriptor_shuffle.cc
@@ -8,7 +8,7 @@
 #include <stddef.h>
 #include <ostream>
 
-#include "base/eintr_wrapper.h"
+#include "base/posix/eintr_wrapper.h"
 #include "base/logging.h"
 
 namespace base {
diff --git a/base/posix/unix_domain_socket.cc b/base/posix/unix_domain_socket.cc
index bd11292..730657d 100644
--- a/base/posix/unix_domain_socket.cc
+++ b/base/posix/unix_domain_socket.cc
@@ -9,9 +9,9 @@
 #include <sys/uio.h>
 #include <sys/socket.h>
 
-#include "base/eintr_wrapper.h"
 #include "base/logging.h"
 #include "base/pickle.h"
+#include "base/posix/eintr_wrapper.h"
 #include "base/stl_util.h"
 
 const size_t UnixDomainSocket::kMaxFileDescriptors = 16;