ReadFileNative()

static unsafe int System.IO.Strategies.FileStreamHelpers.ReadFileNative ( SafeFileHandle handle, Span< byte > bytes, NativeOverlapped * overlapped, out int errorCode )

inlinestaticpackage

Definition at line 308 of file FileStreamHelpers.cs.

    {
        int numBytesRead = 0;
        int num;
        fixed (byte* bytes2 = &MemoryMarshal.GetReference(bytes))
        {
            num = ((overlapped == null) ? Interop.Kernel32.ReadFile(handle, bytes2, bytes.Length, out numBytesRead, overlapped) : Interop.Kernel32.ReadFile(handle, bytes2, bytes.Length, IntPtr.Zero, overlapped));
        }
        if (num == 0)
        {
            errorCode = GetLastWin32ErrorAndDisposeHandleIfInvalid(handle);
            return -1;
        }
        errorCode = 0;
        return numBytesRead;
    }

References System.bytes, System.Runtime.Serialization.Dictionary, System.IO.Strategies.FileStreamHelpers.GetLastWin32ErrorAndDisposeHandleIfInvalid(), System.handle, Interop.Kernel32.ReadFile(), and System.IntPtr.Zero.

Referenced by System.IO.Strategies.FileStreamHelpers.AsyncModeCopyToAsync(), and System.IO.Strategies.Net5CompatFileStreamStrategy.ReadFileNative().