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include/utils/native_file.hpp

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+/*
+  Copyright <2018-2022> <scott.e.graves@protonmail.com>
+
+  Permission is hereby granted, free of charge, to any person obtaining a copy of this software and
+  associated documentation files (the "Software"), to deal in the Software without restriction,
+  including without limitation the rights to use, copy, modify, merge, publish, distribute,
+  sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
+  furnished to do so, subject to the following conditions:
+
+  The above copyright notice and this permission notice shall be included in all copies or
+  substantial portions of the Software.
+
+  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT
+  NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+  NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+  DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT
+  OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+*/
+#ifndef INCLUDE_UTILS_NATIVEFILE_HPP_
+#define INCLUDE_UTILS_NATIVEFILE_HPP_
+
+#include "common.hpp"
+#include "types/repertory.hpp"
+
+namespace repertory {
+class native_file final {
+public:
+  typedef std::shared_ptr<native_file> native_file_ptr;
+
+public:
+  static native_file_ptr attach(OSHandle handle) {
+    return native_file_ptr(new native_file(handle));
+  }
+
+  static native_file_ptr clone(const native_file_ptr &nativeFile);
+
+  static api_error create_or_open(const std::string &source_path, native_file_ptr &nf);
+
+  static api_error open(const std::string &source_path, native_file_ptr &nf);
+
+private:
+  explicit native_file(const OSHandle &handle) : handle_(handle) {}
+
+public:
+  ~native_file() = default;
+
+private:
+  OSHandle handle_;
+#ifdef _WIN32
+  std::recursive_mutex read_write_mutex_;
+#endif
+
+public:
+  bool allocate(const std::uint64_t &file_size);
+
+  void close();
+
+  bool copy_from(const native_file_ptr &source);
+
+  bool copy_from(const std::string &path);
+
+  void flush();
+
+  bool get_file_size(std::uint64_t &file_size);
+
+  OSHandle get_handle() { return handle_; }
+
+#ifdef _WIN32
+  bool read_bytes(char *buffer, const std::size_t &read_size, const std::uint64_t &read_offset,
+                  std::size_t &bytes_read);
+#else
+  bool read_bytes(char *buffer, const std::size_t &read_size, const std::uint64_t &read_offset,
+                  std::size_t &bytes_read);
+#endif
+  bool truncate(const std::uint64_t &file_size);
+
+#ifdef _WIN32
+  bool write_bytes(const char *buffer, const std::size_t &write_size,
+                   const std::uint64_t &write_offset, std::size_t &bytes_written);
+#else
+  bool write_bytes(const char *buffer, const std::size_t &write_size,
+                   const std::uint64_t &write_offset, std::size_t &bytes_written);
+#endif
+};
+
+typedef native_file::native_file_ptr native_file_ptr;
+} // namespace repertory
+
+#endif // INCLUDE_UTILS_NATIVEFILE_HPP_