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1//===--- Linux specialization of the File data structure ------------------===//2//3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.4// See https://llvm.org/LICENSE.txt for license information.5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception6//7//===----------------------------------------------------------------------===//8 9#include "hdr/types/off_t.h"10#include "src/__support/File/file.h"11#include "src/__support/macros/config.h"12 13namespace LIBC_NAMESPACE_DECL {14 15FileIOResult linux_file_write(File *, const void *, size_t);16FileIOResult linux_file_read(File *, void *, size_t);17ErrorOr<off_t> linux_file_seek(File *, off_t, int);18int linux_file_close(File *);19 20class LinuxFile : public File {21 int fd;22 23public:24 constexpr LinuxFile(int file_descriptor, uint8_t *buffer, size_t buffer_size,25 int buffer_mode, bool owned, File::ModeFlags modeflags)26 : File(&linux_file_write, &linux_file_read, &linux_file_seek,27 &linux_file_close, buffer, buffer_size, buffer_mode, owned,28 modeflags),29 fd(file_descriptor) {}30 31 int get_fd() const { return fd; }32};33 34// Create a File object and associate it with a fd.35ErrorOr<LinuxFile *> create_file_from_fd(int fd, const char *mode);36 37} // namespace LIBC_NAMESPACE_DECL38