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Diffstat (limited to 'native/jni/src/suggest/policyimpl/dictionary/utils/mmaped_buffer.h')
-rw-r--r--native/jni/src/suggest/policyimpl/dictionary/utils/mmaped_buffer.h99
1 files changed, 0 insertions, 99 deletions
diff --git a/native/jni/src/suggest/policyimpl/dictionary/utils/mmaped_buffer.h b/native/jni/src/suggest/policyimpl/dictionary/utils/mmaped_buffer.h
deleted file mode 100644
index e3aabb084..000000000
--- a/native/jni/src/suggest/policyimpl/dictionary/utils/mmaped_buffer.h
+++ /dev/null
@@ -1,99 +0,0 @@
-/*
- * Copyright (C) 2013, The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef LATINIME_MMAPED_BUFFER_H
-#define LATINIME_MMAPED_BUFFER_H
-
-#include <cerrno>
-#include <fcntl.h>
-#include <stdint.h>
-#include <sys/mman.h>
-#include <unistd.h>
-
-#include "defines.h"
-
-namespace latinime {
-
-class MmapedBuffer {
- public:
- static MmapedBuffer* openBuffer(const char *const path, const int pathLength,
- const int bufOffset, const int size, const bool isUpdatable) {
- const int openMode = isUpdatable ? O_RDWR : O_RDONLY;
- const int fd = open(path, openMode);
- if (fd < 0) {
- AKLOGE("DICT: Can't open the source. path=%s errno=%d", path, errno);
- return 0;
- }
- const int pagesize = getpagesize();
- const int offset = bufOffset % pagesize;
- int adjOffset = bufOffset - offset;
- int adjSize = size + offset;
- const int protMode = isUpdatable ? PROT_READ | PROT_WRITE : PROT_READ;
- void *const mmapedBuffer = mmap(0, adjSize, protMode, MAP_PRIVATE, fd, adjOffset);
- if (mmapedBuffer == MAP_FAILED) {
- AKLOGE("DICT: Can't mmap dictionary. errno=%d", errno);
- close(fd);
- return 0;
- }
- uint8_t *const buffer = static_cast<uint8_t *>(mmapedBuffer) + bufOffset;
- if (!buffer) {
- AKLOGE("DICT: buffer is null");
- close(fd);
- return 0;
- }
- return new MmapedBuffer(buffer, adjSize, fd, adjOffset, isUpdatable);
- }
-
- ~MmapedBuffer() {
- int ret = munmap(static_cast<void *>(mBuffer - mBufferOffset),
- mBufferSize + mBufferOffset);
- if (ret != 0) {
- AKLOGE("DICT: Failure in munmap. ret=%d errno=%d", ret, errno);
- }
- ret = close(mMmapFd);
- if (ret != 0) {
- AKLOGE("DICT: Failure in close. ret=%d errno=%d", ret, errno);
- }
- }
-
- AK_FORCE_INLINE uint8_t *getBuffer() const {
- return mBuffer;
- }
-
- AK_FORCE_INLINE int getBufferSize() const {
- return mBufferSize;
- }
-
- AK_FORCE_INLINE bool isUpdatable() const {
- return mIsUpdatable;
- }
-
- private:
- AK_FORCE_INLINE MmapedBuffer(uint8_t *const buffer, const int bufferSize, const int mmapFd,
- const int bufferOffset, const bool isUpdatable)
- : mBuffer(buffer), mBufferSize(bufferSize), mMmapFd(mmapFd),
- mBufferOffset(bufferOffset), mIsUpdatable(isUpdatable) {}
-
- DISALLOW_IMPLICIT_CONSTRUCTORS(MmapedBuffer);
-
- uint8_t *const mBuffer;
- const int mBufferSize;
- const int mMmapFd;
- const int mBufferOffset;
- const bool mIsUpdatable;
-};
-}
-#endif /* LATINIME_MMAPED_BUFFER_H */