66 lines
2.2 KiB
C
66 lines
2.2 KiB
C
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#pragma once
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#include <string>
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#include "File.h"
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#include <map>
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#include "os/Mutex.h"
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namespace il2cpp
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{
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namespace os
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{
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// This enum must match the same enum in the Mono code, as it is used on the icall boundary.
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enum MemoryMappedFileAccess
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{
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MMAP_FILE_ACCESS_READ_WRITE = 0,
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MMAP_FILE_ACCESS_READ = 1,
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MMAP_FILE_ACCESS_WRITE = 2,
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MMAP_FILE_ACCESS_COPY_ON_WRITE = 3,
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MMAP_FILE_ACCESS_READ_EXECUTE = 4,
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MMAP_FILE_ACCESS_READ_WRITE_EXECUTE = 5,
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};
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// This enum must match the same enum in the Mono code, as it is used on the icall boundary.
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enum MemoryMappedFileError
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{
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NO_MEMORY_MAPPED_FILE_ERROR = 0,
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BAD_CAPACITY_FOR_FILE_BACKED,
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CAPACITY_SMALLER_THAN_FILE_SIZE,
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FILE_NOT_FOUND,
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FILE_ALREADY_EXISTS,
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PATH_TOO_LONG,
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COULD_NOT_OPEN,
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CAPACITY_MUST_BE_POSITIVE,
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INVALID_FILE_MODE,
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COULD_NOT_MAP_MEMORY,
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ACCESS_DENIED,
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CAPACITY_LARGER_THAN_LOGICAL_ADDRESS_SPACE
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};
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// This enum must match the same enum in the Mono code, as it is used on the icall boundary.
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enum MemoryMappedFileMode
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{
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FILE_MODE_CREATE_NEW = 1,
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FILE_MODE_CREATE = 2,
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FILE_MODE_OPEN = 3,
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FILE_MODE_OPEN_OR_CREATE = 4,
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FILE_MODE_TRUNCATE = 5,
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FILE_MODE_APPEND = 6,
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};
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class MemoryMappedFile
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{
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public:
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typedef void* MemoryMappedFileHandle;
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static FileHandle* Create(FileHandle* file, const char* mapName, int32_t mode, int64_t *capacity, MemoryMappedFileAccess access, int32_t options, MemoryMappedFileError* error);
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static MemoryMappedFileHandle View(FileHandle* mappedFileHandle, int64_t* length, int64_t offset, MemoryMappedFileAccess access, int64_t* actualOffset, MemoryMappedFileError* error);
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static void Flush(MemoryMappedFileHandle memoryMappedFileData, int64_t length);
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static bool UnmapView(MemoryMappedFileHandle memoryMappedFileData, int64_t length);
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static bool Close(FileHandle* file);
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static void ConfigureHandleInheritability(FileHandle* file, bool inheritability);
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static bool OwnsDuplicatedFileHandle(FileHandle* file);
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};
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}
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}
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