Everywhere: Hoist the Libraries folder to the top-level

Libraries/LibCore/SystemWindows.cpp

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