POSIX: Add a macro for handling EINTR.

base/file_descriptor_shuffle.cc

 // 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.
 
 #include "base/file_descriptor_shuffle.h"
 
 #include <errno.h>
 #include <unistd.h>
 
+#include "base/eintr_wrappers.h"
 #include "base/logging.h"
 
 namespace base {
 
 bool PerformInjectiveMultimap(const InjectiveMultimap& m_in,
                               InjectionDelegate* delegate) {
   InjectiveMultimap m(m_in);
   std::vector<int> extra_fds;
 
   for (InjectiveMultimap::iterator i = m.begin(); i != m.end(); ++i) {
@@ skipping 37 matching lines @@
 
   for (std::vector<int>::const_iterator
        i = extra_fds.begin(); i != extra_fds.end(); ++i) {
     delegate->Close(*i);
   }
 
   return true;
 }
 
 bool FileDescriptorTableInjection::Duplicate(int* result, int fd) {
-  do {
-    *result = dup(fd);
-  } while(*result == -1 && errno == EINTR);
-
+  *result = HANDLE_EINTR(dup(fd));
   return *result >= 0;
 }
 
 bool FileDescriptorTableInjection::Move(int src, int dest) {
-  int result;
-
-  do {
-    result = dup2(src, dest);
-  } while (result == -1 && errno == EINTR);
-
-  return result != -1;
+  return HANDLE_EINTR(dup2(src, dest)) != -1;
 }
 
 void FileDescriptorTableInjection::Close(int fd) {
-  int result;
-
-  do {
-    result = close(fd);
-  } while (result == -1 && errno == EINTR);
+  HANDLE_EINTR(close(fd));
 }
 
 }  // namespace base