// Copyright (c) 2010 Google Inc.
// All rights reserved.
//
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// modification, are permitted provided that the following conditions are
// met:
//
//     * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
//     * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
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// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

#ifndef COMMON_LINUX_EINTR_WRAPPER_H_
#define COMMON_LINUX_EINTR_WRAPPER_H_

#include <errno.h>

// This provides a wrapper around system calls which may be interrupted by a
// signal and return EINTR. See man 7 signal.
//

#define HANDLE_EINTR(x) __extension__ ({ \
  typeof(x) __eintr_result__; \
  do { \
    __eintr_result__ = x; \
  } while (__eintr_result__ == -1 && errno == EINTR); \
  __eintr_result__;\
})

#endif // ifndef COMMON_LINUX_EINTR_WRAPPER_H_
