| private sqlite3_value_bytes ( IntPtr p ) : int | ||
| p | IntPtr | |
| Результат | int | |
internal override long GetParamValueBytes(SqliteValueHandle p, int nDataOffset, byte[] bDest, int nStart,
int nLength)
{
int nCopied = nLength;
int nlen = UnsafeNativeMethods.sqlite3_value_bytes(p);
var ptr = UnsafeNativeMethods.sqlite3_value_blob(p);
if (bDest == null)
{
return(nlen);
}
if (nCopied + nStart > bDest.Length)
{
nCopied = bDest.Length - nStart;
}
if (nCopied + nDataOffset > nlen)
{
nCopied = nlen - nDataOffset;
}
if (nCopied > 0)
{
Array.Copy(ptr, nStart + nDataOffset, bDest, 0, nCopied);
}
else
{
nCopied = 0;
}
return(nCopied);
}
internal override long GetParamValueBytes(IntPtr p, int nDataOffset, byte[] bDest, int nStart, int nLength)
{
IntPtr ptr;
int nlen;
int nCopied = nLength;
nlen = UnsafeNativeMethods.sqlite3_value_bytes(p);
ptr = UnsafeNativeMethods.sqlite3_value_blob(p);
if (bDest == null)
{
return(nlen);
}
if (nCopied + nStart > bDest.Length)
{
nCopied = bDest.Length - nStart;
}
if (nCopied + nDataOffset > nlen)
{
nCopied = nlen - nDataOffset;
}
unsafe
{
if (nCopied > 0)
{
Marshal.Copy((IntPtr)((byte *)ptr + nDataOffset), bDest, nStart, nCopied);
}
else
{
nCopied = 0;
}
}
return(nCopied);
}