mirror of
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91 lines
2.2 KiB
C++
91 lines
2.2 KiB
C++
/*
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* Copyright (c) 2021-2022, Andreas Kling <kling@serenityos.org>
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* Copyright (c) 2021-2022, Kenneth Myhra <kennethmyhra@serenityos.org>
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* Copyright (c) 2021-2022, Sam Atkins <atkinssj@serenityos.org>
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* Copyright (c) 2022, Matthias Zimmerman <matthias291999@gmail.com>
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* Copyright (c) 2023, Cameron Youell <cameronyouell@gmail.com>
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* Copyright (c) 2024, stasoid <stasoid@yahoo.com>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <AK/ByteString.h>
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#include <AK/ScopeGuard.h>
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#include <LibCore/System.h>
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#include <WinSock2.h>
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#include <io.h>
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namespace Core::System {
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ErrorOr<int> open(StringView path, int options, mode_t mode)
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{
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ByteString string_path = path;
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int rc = _open(string_path.characters(), options, mode);
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if (rc < 0)
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return Error::from_syscall("open"sv, -errno);
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return rc;
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}
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ErrorOr<void> close(int fd)
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{
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if (_close(fd) < 0)
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return Error::from_syscall("close"sv, -errno);
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return {};
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}
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ErrorOr<ssize_t> read(int fd, Bytes buffer)
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{
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int rc = _read(fd, buffer.data(), buffer.size());
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if (rc < 0)
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return Error::from_syscall("read"sv, -errno);
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return rc;
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}
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ErrorOr<ssize_t> write(int fd, ReadonlyBytes buffer)
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{
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int rc = _write(fd, buffer.data(), buffer.size());
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if (rc < 0)
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return Error::from_syscall("write"sv, -errno);
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return rc;
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}
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ErrorOr<off_t> lseek(int fd, off_t offset, int whence)
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{
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long rc = _lseek(fd, offset, whence);
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if (rc < 0)
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return Error::from_syscall("lseek"sv, -errno);
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return rc;
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}
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ErrorOr<void> ftruncate(int fd, off_t length)
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{
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long position = _tell(fd);
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if (position == -1)
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return Error::from_errno(errno);
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ScopeGuard restore_position { [&] { _lseek(fd, position, SEEK_SET); } };
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auto result = lseek(fd, length, SEEK_SET);
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if (result.is_error())
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return result.release_error();
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if (SetEndOfFile((HANDLE)_get_osfhandle(fd)) == 0)
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return Error::from_windows_error(GetLastError());
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return {};
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}
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ErrorOr<struct stat> fstat(int fd)
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{
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struct stat st = {};
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if (::fstat(fd, &st) < 0)
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return Error::from_syscall("fstat"sv, -errno);
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return st;
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}
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ErrorOr<void> ioctl(int, unsigned, ...)
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{
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dbgln("Core::System::ioctl() is not implemented");
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VERIFY_NOT_REACHED();
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}
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}
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