| 1 | //===--- Linux specialization of the File data structure ------------------===// |
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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 | |
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| 9 | #include "hdr/types/off_t.h" |
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| 10 | #include "src/__support/File/file.h" |
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| 11 | #include "src/__support/macros/config.h" |
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| 12 | |
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| 13 | namespace LIBC_NAMESPACE_DECL { |
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| 14 | |
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| 15 | FileIOResult linux_file_write(File *, const void *, size_t); |
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| 16 | FileIOResult linux_file_read(File *, void *, size_t); |
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| 17 | ErrorOr<off_t> linux_file_seek(File *, off_t, int); |
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| 18 | int linux_file_close(File *); |
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| 19 | |
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| 20 | class LinuxFile : public File { |
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| 21 | int fd; |
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| 22 | |
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| 23 | public: |
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| 24 | constexpr LinuxFile(int file_descriptor, uint8_t *buffer, size_t buffer_size, |
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| 25 | int buffer_mode, bool owned, File::ModeFlags modeflags) |
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| 26 | : File(&linux_file_write, &linux_file_read, &linux_file_seek, |
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| 27 | &linux_file_close, buffer, buffer_size, buffer_mode, owned, |
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| 28 | modeflags), |
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| 29 | fd(file_descriptor) {} |
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| 30 | |
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| 31 | int get_fd() const { return fd; } |
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| 32 | }; |
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| 33 | |
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| 34 | // Create a File object and associate it with a fd. |
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| 35 | ErrorOr<LinuxFile *> create_file_from_fd(int fd, const char *mode); |
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| 36 | |
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| 37 | } // namespace LIBC_NAMESPACE_DECL |
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| 38 | |
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