mirror of https://gitee.com/bigwinds/arangodb
81 lines
3.2 KiB
C
81 lines
3.2 KiB
C
////////////////////////////////////////////////////////////////////////////////
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/// DISCLAIMER
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///
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/// Copyright 2014-2016 ArangoDB GmbH, Cologne, Germany
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/// Copyright 2004-2014 triAGENS GmbH, Cologne, Germany
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///
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/// Licensed under the Apache License, Version 2.0 (the "License");
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/// you may not use this file except in compliance with the License.
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/// You may obtain a copy of the License at
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///
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/// http://www.apache.org/licenses/LICENSE-2.0
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///
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/// Unless required by applicable law or agreed to in writing, software
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/// distributed under the License is distributed on an "AS IS" BASIS,
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/// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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/// See the License for the specific language governing permissions and
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/// limitations under the License.
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///
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/// Copyright holder is ArangoDB GmbH, Cologne, Germany
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///
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/// @author Dr. Oreste Costa-Panaia
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////////////////////////////////////////////////////////////////////////////////
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#ifndef ARANGODB_BASICS_MEMORY__MAP__WIN32_H
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#define ARANGODB_BASICS_MEMORY__MAP__WIN32_H 1
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#include "Basics/Common.h"
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#ifdef TRI_HAVE_WIN32_MMAP
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////////////////////////////////////////////////////////////////////////////////
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/// @brief undefine this so anonymous memory mapping is disabled
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///
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/// anonymous memory mapping may or may not work on Windows
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////////////////////////////////////////////////////////////////////////////////
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////////////////////////////////////////////////////////////////////////////////
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// Flags used when we create a memory map -- dummy flags for windows for now
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////////////////////////////////////////////////////////////////////////////////
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#define MAP_SHARED 0x01 /* Share changes */
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#define MAP_PRIVATE 0x02 /* Changes are private */
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#define MAP_TYPE 0x0f /* Mask for type of mapping */
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#define MAP_FIXED 0x10 /* Interpret addr exactly */
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#define MAP_ANONYMOUS 0x20 /* don't use a file */
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#define TRI_MMAP_ANONYMOUS MAP_ANONYMOUS
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////////////////////////////////////////////////////////////////////////////////
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// Define some dummy flags which are ignored under windows.
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// Under windows only the MS_SYNC flag makes sense, that is, all memory map
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// file flushes are synchronous.
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////////////////////////////////////////////////////////////////////////////////
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#define MS_ASYNC 1 /* sync memory asynchronously */
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#define MS_INVALIDATE 2 /* invalidate the caches */
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#define MS_SYNC 4 /* synchronous memory sync */
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#define PROT_READ 0x1 /* Page can be read. */
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#define PROT_WRITE 0x2 /* Page can be written. */
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#define PROT_EXEC 0x4 /* Page can be executed. */
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#define PROT_NONE 0x0 /* Page can not be accessed. */
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#define PROT_GROWSDOWN \
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0x01000000 /* Extend change to start of growsdown vma (mprotect only). */
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#define PROT_GROWSUP \
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0x02000000 /* Extend change to start of growsup vma (mprotect only). */
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#endif
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////////////////////////////////////////////////////////////////////////////////
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/// @brief constants for TRI_MMFileAdvise, not on Windows
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////////////////////////////////////////////////////////////////////////////////
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#define TRI_MADVISE_SEQUENTIAL 0
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#define TRI_MADVISE_RANDOM 0
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#define TRI_MADVISE_WILLNEED 0
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#define TRI_MADVISE_DONTNEED 0
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#define TRI_MADVISE_DONTDUMP 0
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#endif
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