Squashed 'third_party/gperftools/' content from commit 54505f1
Change-Id: Id02e833828732b0efe7dac722b8485279e67c5fa
git-subtree-dir: third_party/gperftools
git-subtree-split: 54505f1d50c2d1f4676f5e87090b64a117fd980e
diff --git a/src/config_for_unittests.h b/src/config_for_unittests.h
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+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2007, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// 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.
+// * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// ---
+// All Rights Reserved.
+//
+// Author: Craig Silverstein
+//
+// This file is needed for windows -- unittests are not part of the
+// perftools dll, but still want to include config.h just like the
+// dll does, so they can use internal tools and APIs for testing.
+//
+// The problem is that config.h declares PERFTOOLS_DLL_DECL to be
+// for exporting symbols, but the unittest needs to *import* symbols
+// (since it's not the dll).
+//
+// The solution is to have this file, which is just like config.h but
+// sets PERFTOOLS_DLL_DECL to do a dllimport instead of a dllexport.
+//
+// The reason we need this extra PERFTOOLS_DLL_DECL_FOR_UNITTESTS
+// variable is in case people want to set PERFTOOLS_DLL_DECL explicitly
+// to something other than __declspec(dllexport). In that case, they
+// may want to use something other than __declspec(dllimport) for the
+// unittest case. For that, we allow folks to define both
+// PERFTOOLS_DLL_DECL and PERFTOOLS_DLL_DECL_FOR_UNITTESTS explicitly.
+//
+// NOTE: This file is equivalent to config.h on non-windows systems,
+// which never defined PERFTOOLS_DLL_DECL_FOR_UNITTESTS and always
+// define PERFTOOLS_DLL_DECL to the empty string.
+
+#include "config.h"
+
+#undef PERFTOOLS_DLL_DECL
+#ifdef PERFTOOLS_DLL_DECL_FOR_UNITTESTS
+# define PERFTOOLS_DLL_DECL PERFTOOLS_DLL_DECL_FOR_UNITTESTS
+#else
+# define PERFTOOLS_DLL_DECL // if DLL_DECL_FOR_UNITTESTS isn't defined, use ""
+#endif