1 files changed, 0 insertions, 175 deletions
diff --git a/vendor/github.com/tetratelabs/wazero/internal/sysfs/file_windows.go b/vendor/github.com/tetratelabs/wazero/internal/sysfs/file_windows.go
deleted file mode 100644
index 37870ea36..000000000
--- a/vendor/github.com/tetratelabs/wazero/internal/sysfs/file_windows.go
+++ /dev/null
@@ -1,175 +0,0 @@
-package sysfs
-
-import (
-	"errors"
-	"syscall"
-	"unsafe"
-
-	"github.com/tetratelabs/wazero/experimental/sys"
-)
-
-const (
-	nonBlockingFileReadSupported  = true
-	nonBlockingFileWriteSupported = false
-
-	_ERROR_IO_INCOMPLETE = syscall.Errno(996)
-)
-
-var kernel32 = syscall.NewLazyDLL("kernel32.dll")
-
-// procPeekNamedPipe is the syscall.LazyProc in kernel32 for PeekNamedPipe
-var (
-	// procPeekNamedPipe is the syscall.LazyProc in kernel32 for PeekNamedPipe
-	procPeekNamedPipe = kernel32.NewProc("PeekNamedPipe")
-	// procGetOverlappedResult is the syscall.LazyProc in kernel32 for GetOverlappedResult
-	procGetOverlappedResult = kernel32.NewProc("GetOverlappedResult")
-	// procCreateEventW is the syscall.LazyProc in kernel32 for CreateEventW
-	procCreateEventW = kernel32.NewProc("CreateEventW")
-)
-
-// readFd returns ENOSYS on unsupported platforms.
-//
-// PeekNamedPipe: https://learn.microsoft.com/en-us/windows/win32/api/namedpipeapi/nf-namedpipeapi-peeknamedpipe
-// "GetFileType can assist in determining what device type the handle refers to. A console handle presents as FILE_TYPE_CHAR."
-// https://learn.microsoft.com/en-us/windows/console/console-handles
-func readFd(fd uintptr, buf []byte) (int, sys.Errno) {
-	handle := syscall.Handle(fd)
-	fileType, err := syscall.GetFileType(handle)
-	if err != nil {
-		return 0, sys.UnwrapOSError(err)
-	}
-	if fileType&syscall.FILE_TYPE_CHAR == 0 {
-		return -1, sys.ENOSYS
-	}
-	n, errno := peekNamedPipe(handle)
-	if errno == syscall.ERROR_BROKEN_PIPE {
-		return 0, 0
-	}
-	if n == 0 {
-		return -1, sys.EAGAIN
-	}
-	un, err := syscall.Read(handle, buf[0:n])
-	return un, sys.UnwrapOSError(err)
-}
-
-func writeFd(fd uintptr, buf []byte) (int, sys.Errno) {
-	return -1, sys.ENOSYS
-}
-
-func readSocket(h uintptr, buf []byte) (int, sys.Errno) {
-	// Poll the socket to ensure that we never perform a blocking/overlapped Read.
-	//
-	// When the socket is closed by the remote peer, wsaPoll will return n=1 and
-	// errno=0, and syscall.ReadFile will return n=0 and errno=0 -- which indicates
-	// io.EOF.
-	if n, errno := wsaPoll(
-		[]pollFd{newPollFd(h, _POLLIN, 0)}, 0); !errors.Is(errno, sys.Errno(0)) {
-		return 0, sys.UnwrapOSError(errno)
-	} else if n <= 0 {
-		return 0, sys.EAGAIN
-	}
-
-	// Properly use overlapped result.
-	//
-	// If hFile was opened with FILE_FLAG_OVERLAPPED, the following conditions are in effect:
-	//  - The lpOverlapped parameter must point to a valid and unique OVERLAPPED structure,
-	//  otherwise the function can incorrectly report that the read operation is complete.
-	//  - The lpNumberOfBytesRead parameter should be set to NULL. Use the GetOverlappedResult
-	//  function to get the actual number of bytes read. If the hFile parameter is associated
-	//  with an I/O completion port, you can also get the number of bytes read by calling the
-	//  GetQueuedCompletionStatus function.
-	//
-	// We are currently skipping checking if hFile was opened with FILE_FLAG_OVERLAPPED but using
-	// both lpOverlapped and lpNumberOfBytesRead.
-	var overlapped syscall.Overlapped
-
-	// Create an event to wait on.
-	if hEvent, err := createEventW(nil, true, false, nil); err != 0 {
-		return 0, sys.UnwrapOSError(err)
-	} else {
-		overlapped.HEvent = syscall.Handle(hEvent)
-	}
-
-	var done uint32
-	errno := syscall.ReadFile(syscall.Handle(h), buf, &done, &overlapped)
-	if errors.Is(errno, syscall.ERROR_IO_PENDING) {
-		errno = syscall.CancelIo(syscall.Handle(h))
-		if errno != nil {
-			return 0, sys.UnwrapOSError(errno) // This is a fatal error. CancelIo failed.
-		}
-
-		done, errno = getOverlappedResult(syscall.Handle(h), &overlapped, true) // wait for I/O to complete(cancel or finish). Overwrite done and errno.
-		if errors.Is(errno, syscall.ERROR_OPERATION_ABORTED) {
-			return int(done), sys.EAGAIN // This is one of the expected behavior, I/O was cancelled(completed) before finished.
-		}
-	}
-
-	return int(done), sys.UnwrapOSError(errno)
-}
-
-func writeSocket(fd uintptr, buf []byte) (int, sys.Errno) {
-	var done uint32
-	var overlapped syscall.Overlapped
-	errno := syscall.WriteFile(syscall.Handle(fd), buf, &done, &overlapped)
-	if errors.Is(errno, syscall.ERROR_IO_PENDING) {
-		errno = syscall.EAGAIN
-	}
-	return int(done), sys.UnwrapOSError(errno)
-}
-
-// peekNamedPipe partially exposes PeekNamedPipe from the Win32 API
-// see https://learn.microsoft.com/en-us/windows/win32/api/namedpipeapi/nf-namedpipeapi-peeknamedpipe
-func peekNamedPipe(handle syscall.Handle) (uint32, syscall.Errno) {
-	var totalBytesAvail uint32
-	totalBytesPtr := unsafe.Pointer(&totalBytesAvail)
-	_, _, errno := syscall.SyscallN(
-		procPeekNamedPipe.Addr(),
-		uintptr(handle),        // [in]            HANDLE  hNamedPipe,
-		0,                      // [out, optional] LPVOID  lpBuffer,
-		0,                      // [in]            DWORD   nBufferSize,
-		0,                      // [out, optional] LPDWORD lpBytesRead
-		uintptr(totalBytesPtr), // [out, optional] LPDWORD lpTotalBytesAvail,
-		0)                      // [out, optional] LPDWORD lpBytesLeftThisMessage
-	return totalBytesAvail, errno
-}
-
-func rmdir(path string) sys.Errno {
-	err := syscall.Rmdir(path)
-	return sys.UnwrapOSError(err)
-}
-
-func getOverlappedResult(handle syscall.Handle, overlapped *syscall.Overlapped, wait bool) (uint32, syscall.Errno) {
-	var totalBytesAvail uint32
-	var bwait uintptr
-	if wait {
-		bwait = 0xFFFFFFFF
-	}
-	totalBytesPtr := unsafe.Pointer(&totalBytesAvail)
-	_, _, errno := syscall.SyscallN(
-		procGetOverlappedResult.Addr(),
-		uintptr(handle),                     // [in]  HANDLE       hFile,
-		uintptr(unsafe.Pointer(overlapped)), // [in]  LPOVERLAPPED lpOverlapped,
-		uintptr(totalBytesPtr),              // [out] LPDWORD      lpNumberOfBytesTransferred,
-		bwait)                               // [in]  BOOL         bWait
-	return totalBytesAvail, errno
-}
-
-func createEventW(lpEventAttributes *syscall.SecurityAttributes, bManualReset bool, bInitialState bool, lpName *uint16) (uintptr, syscall.Errno) {
-	var manualReset uintptr
-	var initialState uintptr
-	if bManualReset {
-		manualReset = 1
-	}
-	if bInitialState {
-		initialState = 1
-	}
-	handle, _, errno := syscall.SyscallN(
-		procCreateEventW.Addr(),
-		uintptr(unsafe.Pointer(lpEventAttributes)), // [in]     LPSECURITY_ATTRIBUTES lpEventAttributes,
-		manualReset,                     // [in]     BOOL                  bManualReset,
-		initialState,                    // [in]     BOOL                  bInitialState,
-		uintptr(unsafe.Pointer(lpName)), // [in, opt]LPCWSTR               lpName,
-	)
-
-	return handle, errno
-}