1 files changed, 33 insertions, 0 deletions
diff --git a/base/eintr_wrapper.h b/base/eintr_wrapper.h
new file mode 100644
index 0000000..a3fb1e4
--- /dev/null
+++ b/base/eintr_wrapper.h
@@ -0,0 +1,33 @@
+// Copyright (c) 2009 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_EINTR_WRAPPER_H_
+#define BASE_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_EINTR_WRAPPER_H_