Exemplo n.º 1
0
        internal static unsafe IntPtr ConvertToNative(int flags, string strManaged, IntPtr pNativeBuffer)
        {
            if (strManaged == null)
            {
                return(IntPtr.Zero);
            }
            System.StubHelpers.StubHelpers.CheckStringLength(strManaged.Length);
            byte *numPtr = (byte *)(void *)pNativeBuffer;
            int   cbLength;

            if ((IntPtr)numPtr != IntPtr.Zero || Marshal.SystemMaxDBCSCharSize == 1)
            {
                int num = (strManaged.Length + 1) * Marshal.SystemMaxDBCSCharSize;
                if ((IntPtr)numPtr == IntPtr.Zero)
                {
                    numPtr = (byte *)(void *)Marshal.AllocCoTaskMem(num + 1);
                }
                cbLength = strManaged.ConvertToAnsi(numPtr, num + 1, (uint)(flags & (int)byte.MaxValue) > 0U, (uint)(flags >> 8) > 0U);
            }
            else
            {
                byte[] src = AnsiCharMarshaler.DoAnsiConversion(strManaged, (uint)(flags & (int)byte.MaxValue) > 0U, (uint)(flags >> 8) > 0U, out cbLength);
                numPtr = (byte *)(void *)Marshal.AllocCoTaskMem(cbLength + 2);
                Buffer.Memcpy(numPtr, 0, src, 0, cbLength);
            }
            numPtr[cbLength]     = (byte)0;
            numPtr[cbLength + 1] = (byte)0;
            return((IntPtr)((void *)numPtr));
        }
        internal static unsafe IntPtr ConvertToNative(string strManaged, bool fBestFit, bool fThrowOnUnmappableChar, ref int cch)
        {
            if (strManaged == null)
            {
                return(IntPtr.Zero);
            }
            cch = strManaged.Length;
            System.StubHelpers.StubHelpers.CheckStringLength(cch);
            int   cb      = 4 + ((cch + 1) * Marshal.SystemMaxDBCSCharSize);
            byte *pDest   = (byte *)Marshal.AllocCoTaskMem(cb);
            int * numPtr2 = (int *)pDest;

            pDest += 4;
            if (cch == 0)
            {
                pDest[0]   = 0;
                numPtr2[0] = 0;
            }
            else
            {
                int num2;
                Buffer.memcpy(AnsiCharMarshaler.DoAnsiConversion(strManaged, fBestFit, fThrowOnUnmappableChar, out num2), 0, pDest, 0, num2);
                pDest[num2] = 0;
                numPtr2[0]  = num2;
            }
            return(new IntPtr((void *)pDest));
        }
Exemplo n.º 3
0
        internal static unsafe IntPtr ConvertToNative(int flags, string strManaged)
        {
            if (null == strManaged)
            {
                return(IntPtr.Zero);
            }

            byte[]? bytes = null;
            int nb = 0;

            if (strManaged.Length > 0)
            {
                bytes = AnsiCharMarshaler.DoAnsiConversion(strManaged, 0 != (flags & 0xFF), 0 != (flags >> 8), out nb);
            }

            uint   length = (uint)nb;
            IntPtr bstr   = Marshal.AllocBSTRByteLen(length);

            if (bytes != null)
            {
                Buffer.Memmove(ref *(byte *)bstr, ref MemoryMarshal.GetArrayDataReference(bytes), length);
            }

            return(bstr);
        }
        private unsafe IntPtr ConvertStringBuilderToNative(StringBuilder pManagedHome, int dwFlags)
        {
            IntPtr intPtr;

            if (AsAnyMarshaler.IsAnsi(dwFlags))
            {
                StubHelpers.CheckStringLength(pManagedHome.Capacity);
                int num = pManagedHome.Capacity * Marshal.SystemMaxDBCSCharSize + 4;
                intPtr = Marshal.AllocCoTaskMem(num);
                byte *ptr = (byte *)((void *)intPtr);
                *(ptr + num - 3) = 0;
                *(ptr + num - 2) = 0;
                *(ptr + num - 1) = 0;
                if (AsAnyMarshaler.IsIn(dwFlags))
                {
                    int    num2;
                    byte[] src = AnsiCharMarshaler.DoAnsiConversion(pManagedHome.ToString(), AsAnyMarshaler.IsBestFit(dwFlags), AsAnyMarshaler.IsThrowOn(dwFlags), out num2);
                    Buffer.Memcpy(ptr, 0, src, 0, num2);
                    ptr[num2] = 0;
                }
                if (AsAnyMarshaler.IsOut(dwFlags))
                {
                    this.backPropAction = AsAnyMarshaler.BackPropAction.StringBuilderAnsi;
                }
            }
            else
            {
                int num3 = pManagedHome.Capacity * 2 + 4;
                intPtr = Marshal.AllocCoTaskMem(num3);
                byte *ptr2 = (byte *)((void *)intPtr);
                *(ptr2 + num3 - 1) = 0;
                *(ptr2 + num3 - 2) = 0;
                if (AsAnyMarshaler.IsIn(dwFlags))
                {
                    int num4 = pManagedHome.Length * 2;
                    pManagedHome.InternalCopy(intPtr, num4);
                    ptr2[num4]       = 0;
                    (ptr2 + num4)[1] = 0;
                }
                if (AsAnyMarshaler.IsOut(dwFlags))
                {
                    this.backPropAction = AsAnyMarshaler.BackPropAction.StringBuilderUnicode;
                }
            }
            return(intPtr);
        }
Exemplo n.º 5
0
        private unsafe IntPtr ConvertStringBuilderToNative(StringBuilder pManagedHome, int dwFlags)
        {
            IntPtr dest;

            if (AsAnyMarshaler.IsAnsi(dwFlags))
            {
                System.StubHelpers.StubHelpers.CheckStringLength(pManagedHome.Capacity);
                int cb = pManagedHome.Capacity * Marshal.SystemMaxDBCSCharSize + 4;
                dest = Marshal.AllocCoTaskMem(cb);
                byte *pDest = (byte *)(void *)dest;
                *(pDest + cb - 3) = (byte)0;
                *(pDest + cb - 2) = (byte)0;
                *(pDest + cb - 1) = (byte)0;
                if (AsAnyMarshaler.IsIn(dwFlags))
                {
                    int    cbLength;
                    byte[] src = AnsiCharMarshaler.DoAnsiConversion(pManagedHome.ToString(), AsAnyMarshaler.IsBestFit(dwFlags), AsAnyMarshaler.IsThrowOn(dwFlags), out cbLength);
                    Buffer.Memcpy(pDest, 0, src, 0, cbLength);
                    pDest[cbLength] = (byte)0;
                }
                if (AsAnyMarshaler.IsOut(dwFlags))
                {
                    this.backPropAction = AsAnyMarshaler.BackPropAction.StringBuilderAnsi;
                }
            }
            else
            {
                int cb = pManagedHome.Capacity * 2 + 4;
                dest = Marshal.AllocCoTaskMem(cb);
                byte *numPtr = (byte *)(void *)dest;
                *(numPtr + cb - 1) = (byte)0;
                *(numPtr + cb - 2) = (byte)0;
                if (AsAnyMarshaler.IsIn(dwFlags))
                {
                    int len = pManagedHome.Length * 2;
                    pManagedHome.InternalCopy(dest, len);
                    (numPtr + len)[0] = (byte)0;
                    (numPtr + len)[1] = (byte)0;
                }
                if (AsAnyMarshaler.IsOut(dwFlags))
                {
                    this.backPropAction = AsAnyMarshaler.BackPropAction.StringBuilderUnicode;
                }
            }
            return(dest);
        }
        private unsafe IntPtr ConvertStringBuilderToNative(StringBuilder pManagedHome, int dwFlags)
        {
            IntPtr ptr;

            if (IsAnsi(dwFlags))
            {
                System.StubHelpers.StubHelpers.CheckStringLength(pManagedHome.Capacity);
                int num = (pManagedHome.Capacity * Marshal.SystemMaxDBCSCharSize) + 4;
                ptr = Marshal.AllocCoTaskMem(num);
                byte *pDest = (byte *)ptr;
                *((pDest + num) - 3) = 0;
                *((pDest + num) - 2) = 0;
                *((pDest + num) - 1) = 0;
                if (IsIn(dwFlags))
                {
                    int num2;
                    Buffer.memcpy(AnsiCharMarshaler.DoAnsiConversion(pManagedHome.ToString(), IsBestFit(dwFlags), IsThrowOn(dwFlags), out num2), 0, pDest, 0, num2);
                    pDest[num2] = 0;
                }
                if (IsOut(dwFlags))
                {
                    this.backPropAction = BackPropAction.StringBuilderAnsi;
                }
                return(ptr);
            }
            int cb = (pManagedHome.Capacity * 2) + 4;

            ptr = Marshal.AllocCoTaskMem(cb);
            byte *numPtr2 = (byte *)ptr;

            *((numPtr2 + cb) - 1) = 0;
            *((numPtr2 + cb) - 2) = 0;
            if (IsIn(dwFlags))
            {
                int len = pManagedHome.Length * 2;
                pManagedHome.InternalCopy(ptr, len);
                numPtr2[len]       = 0;
                (numPtr2 + len)[1] = 0;
            }
            if (IsOut(dwFlags))
            {
                this.backPropAction = BackPropAction.StringBuilderUnicode;
            }
            return(ptr);
        }
        internal static IntPtr ConvertToNative(int flags, string strManaged)
        {
            if (strManaged == null)
            {
                return(IntPtr.Zero);
            }
            int length = strManaged.Length;

            StubHelpers.CheckStringLength(length);
            byte[] str = null;
            int    len = 0;

            if (length > 0)
            {
                str = AnsiCharMarshaler.DoAnsiConversion(strManaged, (flags & 255) != 0, flags >> 8 != 0, out len);
            }
            return(Win32Native.SysAllocStringByteLen(str, (uint)len));
        }
Exemplo n.º 8
0
        internal static IntPtr ConvertToNative(int flags, string strManaged)
        {
            if (strManaged == null)
            {
                return(IntPtr.Zero);
            }
            int length = strManaged.Length;

            System.StubHelpers.StubHelpers.CheckStringLength(length);
            byte[] str      = null;
            int    cbLength = 0;

            if (length > 0)
            {
                str = AnsiCharMarshaler.DoAnsiConversion(strManaged, 0 != (flags & 0xff), 0 != (flags >> 8), out cbLength);
            }
            return(Win32Native.SysAllocStringByteLen(str, (uint)cbLength));
        }
Exemplo n.º 9
0
        internal static unsafe IntPtr ConvertToNative(int flags, string strManaged, IntPtr pNativeBuffer)
        {
            int num;

            if (strManaged == null)
            {
                return(IntPtr.Zero);
            }
            System.StubHelpers.StubHelpers.CheckStringLength(strManaged.Length);
            byte[] src   = AnsiCharMarshaler.DoAnsiConversion(strManaged, 0 != (flags & 0xff), 0 != (flags >> 8), out num);
            byte * pDest = (byte *)pNativeBuffer;

            if (pDest == null)
            {
                pDest = (byte *)Marshal.AllocCoTaskMem(num + 2);
            }
            Buffer.memcpy(src, 0, pDest, 0, num);
            pDest[num]     = 0;
            pDest[num + 1] = 0;
            return((IntPtr)pDest);
        }
Exemplo n.º 10
0
        internal static unsafe IntPtr ConvertToNative(string strManaged, bool fBestFit, bool fThrowOnUnmappableChar, ref int cch)
        {
            if (null == strManaged)
            {
                return(IntPtr.Zero);
            }

            byte *pNative;

            cch = strManaged.Length;

            // length field at negative offset + (# of characters incl. the terminator) * max ANSI char size
            int nbytes = checked (sizeof(uint) + ((cch + 1) * Marshal.SystemMaxDBCSCharSize));

            pNative = (byte *)Marshal.AllocCoTaskMem(nbytes);
            int *pLength = (int *)pNative;

            pNative += sizeof(uint);

            if (0 == cch)
            {
                *pNative = 0;
                *pLength = 0;
            }
            else
            {
                byte[] bytes = AnsiCharMarshaler.DoAnsiConversion(strManaged, fBestFit, fThrowOnUnmappableChar, out int nbytesused);

                Debug.Assert(nbytesused >= 0 && nbytesused < nbytes, "Insufficient buffer allocated in VBByValStrMarshaler.ConvertToNative");

                Buffer.Memmove(ref *pNative, ref MemoryMarshal.GetArrayDataReference(bytes), (nuint)nbytesused);

                pNative[nbytesused] = 0;
                *pLength = nbytesused;
            }

            return(new IntPtr(pNative));
        }
Exemplo n.º 11
0
        internal static unsafe IntPtr ConvertToNative(int flags, string strManaged, IntPtr pNativeBuffer)
        {
            if (null == strManaged)
            {
                return(IntPtr.Zero);
            }

            int   nb;
            byte *pbNativeBuffer = (byte *)pNativeBuffer;

            if (pbNativeBuffer != null || Marshal.SystemMaxDBCSCharSize == 1)
            {
                // If we are marshaling into a stack buffer or we can accurately estimate the size of the required heap
                // space, we will use a "1-pass" mode where we convert the string directly into the unmanaged buffer.

                // + 1 for the null character from the user.  + 1 for the null character we put in.
                nb = checked ((strManaged.Length + 1) * Marshal.SystemMaxDBCSCharSize + 1);

                bool didAlloc = false;

                // Use the pre-allocated buffer (allocated by localloc IL instruction) if not NULL,
                // otherwise fallback to AllocCoTaskMem
                if (pbNativeBuffer == null)
                {
                    pbNativeBuffer = (byte *)Marshal.AllocCoTaskMem(nb);
                    didAlloc       = true;
                }

                try
                {
                    nb = Marshal.StringToAnsiString(strManaged, pbNativeBuffer, nb,
                                                    bestFit: 0 != (flags & 0xFF), throwOnUnmappableChar: 0 != (flags >> 8));
                }
                catch (Exception) when(didAlloc)
                {
                    Marshal.FreeCoTaskMem((IntPtr)pbNativeBuffer);
                    throw;
                }
            }
            else
            {
                if (strManaged.Length == 0)
                {
                    nb             = 0;
                    pbNativeBuffer = (byte *)Marshal.AllocCoTaskMem(2);
                }
                else
                {
                    // Otherwise we use a slower "2-pass" mode where we first marshal the string into an intermediate buffer
                    // (managed byte array) and then allocate exactly the right amount of unmanaged memory. This is to avoid
                    // wasting memory on systems with multibyte character sets where the buffer we end up with is often much
                    // smaller than the upper bound for the given managed string.

                    byte[] bytes = AnsiCharMarshaler.DoAnsiConversion(strManaged,
                                                                      fBestFit: 0 != (flags & 0xFF), fThrowOnUnmappableChar: 0 != (flags >> 8), out nb);

                    // + 1 for the null character from the user.  + 1 for the null character we put in.
                    pbNativeBuffer = (byte *)Marshal.AllocCoTaskMem(nb + 2);

                    Buffer.Memmove(ref *pbNativeBuffer, ref MemoryMarshal.GetArrayDataReference(bytes), (nuint)nb);
                }
            }

            pbNativeBuffer[nb]     = 0x00;
            pbNativeBuffer[nb + 1] = 0x00;

            return((IntPtr)pbNativeBuffer);
        }