| 1 | //===-- FileCache.h ---------------------------------------------*- C++ -*-===// |
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| 2 | // |
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| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
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| 4 | // See https://llvm.org/LICENSE.txt for license information. |
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| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
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| 6 | // |
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| 7 | //===----------------------------------------------------------------------===// |
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| 8 | #ifndef LLDB_HOST_FILECACHE_H |
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| 9 | #define LLDB_HOST_FILECACHE_H |
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| 10 | |
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| 11 | #include <cstdint> |
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| 12 | #include <map> |
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| 13 | |
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| 14 | #include "lldb/lldb-forward.h" |
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| 15 | #include "lldb/lldb-types.h" |
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| 16 | |
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| 17 | #include "lldb/Host/File.h" |
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| 18 | #include "lldb/Utility/FileSpec.h" |
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| 19 | #include "lldb/Utility/Status.h" |
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| 20 | |
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| 21 | namespace lldb_private { |
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| 22 | class FileCache { |
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| 23 | private: |
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| 24 | FileCache() = default; |
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| 25 | |
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| 26 | typedef std::map<lldb::user_id_t, lldb::FileUP> FDToFileMap; |
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| 27 | |
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| 28 | public: |
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| 29 | static FileCache &GetInstance(); |
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| 30 | |
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| 31 | lldb::user_id_t OpenFile(const FileSpec &file_spec, File::OpenOptions flags, |
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| 32 | uint32_t mode, Status &error); |
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| 33 | bool CloseFile(lldb::user_id_t fd, Status &error); |
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| 34 | |
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| 35 | uint64_t WriteFile(lldb::user_id_t fd, uint64_t offset, const void *src, |
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| 36 | uint64_t src_len, Status &error); |
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| 37 | uint64_t ReadFile(lldb::user_id_t fd, uint64_t offset, void *dst, |
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| 38 | uint64_t dst_len, Status &error); |
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| 39 | |
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| 40 | private: |
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| 41 | static FileCache *m_instance; |
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| 42 | |
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| 43 | FDToFileMap m_cache; |
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| 44 | }; |
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| 45 | } |
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| 46 | |
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| 47 | #endif |
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| 48 | |
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