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static private ReadAnsiString ( |
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| addr | ||
| offset | int | |
| return | string | |
/// <summary>
/// Helper function for translating from memset to NT's FillMemory API.
/// </summary>
private static IntPtr StringAt(IntPtr src, int len)
{
string res;
if (len == -1)
{
res = MemoryHolder.ReadAnsiString(src, 0);
}
else
{
res = MemoryHolder.ReadAnsiString(src, 0, len);
}
return(GCHandle.ToIntPtr(GCHandle.Alloc(res)));
}
internal string GetRawValue(MemoryHolder owner, int offset)
{
Debug.Assert(IsStringType);
SimpleType st = (SimpleType)_type;
string str;
if (st._type == SimpleTypeKind.Char)
{
str = owner.ReadAnsiString(offset, _length);
}
else
{
str = owner.ReadUnicodeString(offset, _length);
}
return(str);
}
internal string GetRawValue(MemoryHolder owner, int offset) {
Debug.Assert(IsStringType);
SimpleType st = (SimpleType)_type;
string str;
if (st._type == SimpleTypeKind.Char) {
str = owner.ReadAnsiString(offset, _length);
} else {
str = owner.ReadUnicodeString(offset, _length);
}
return str;
}
object INativeType.GetValue(MemoryHolder owner, object readingFrom, int offset, bool raw) {
if (IsStringType) {
SimpleType st = (SimpleType)_type;
string str;
if (st._type == SimpleTypeKind.Char) {
str = owner.ReadAnsiString(offset, _length);
} else {
str = owner.ReadUnicodeString(offset, _length);
}
// remove any trailing nulls
for (int i = 0; i < str.Length; i++) {
if (str[i] == '\x00') {
return str.Substring(0, i);
}
}
return str;
}
_Array arr = (_Array)CreateInstance(Context.SharedContext);
arr._memHolder = new MemoryHolder(owner.UnsafeAddress.Add(offset), ((INativeType)this).Size, owner);
return arr;
}
object INativeType.GetValue(MemoryHolder/*!*/ owner, int offset, bool raw) {
object res;
switch (_type) {
case SimpleTypeKind.Boolean: res = owner.ReadByte(offset) != 0 ? ScriptingRuntimeHelpers.True : ScriptingRuntimeHelpers.False; break;
case SimpleTypeKind.Char: res = new string((char)owner.ReadByte(offset), 1); break;
case SimpleTypeKind.SignedByte: res = GetIntReturn((int)(sbyte)owner.ReadByte(offset)); break;
case SimpleTypeKind.UnsignedByte: res = GetIntReturn((int)owner.ReadByte(offset)); break;
case SimpleTypeKind.SignedShort: res = GetIntReturn((int)owner.ReadInt16(offset)); break;
case SimpleTypeKind.WChar: res = new string((char)owner.ReadInt16(offset), 1); break;
case SimpleTypeKind.UnsignedShort: res = GetIntReturn((int)(ushort)owner.ReadInt16(offset)); break;
case SimpleTypeKind.SignedInt: res = GetIntReturn((int)owner.ReadInt32(offset)); break;
case SimpleTypeKind.UnsignedInt: res = GetIntReturn((uint)owner.ReadInt32(offset)); break;
case SimpleTypeKind.UnsignedLong: res = GetIntReturn((uint)owner.ReadInt32(offset)); break;
case SimpleTypeKind.SignedLong: res = GetIntReturn(owner.ReadInt32(offset)); break;
case SimpleTypeKind.Single: res = GetSingleReturn(owner.ReadInt32(offset)); break;
case SimpleTypeKind.Double: res = GetDoubleReturn(owner.ReadInt64(offset)); break;
case SimpleTypeKind.UnsignedLongLong: res = GetIntReturn((ulong)owner.ReadInt64(offset)); break;
case SimpleTypeKind.SignedLongLong: res = GetIntReturn(owner.ReadInt64(offset)); break;
case SimpleTypeKind.Object: res = GetObjectReturn(owner.ReadIntPtr(offset)); break;
case SimpleTypeKind.Pointer: res = ToPython(owner.ReadIntPtr(offset)); break;
case SimpleTypeKind.CharPointer: res = owner.ReadAnsiString(offset); break;
case SimpleTypeKind.WCharPointer: res = owner.ReadUnicodeString(offset); break;
default:
throw new InvalidOperationException();
}
if (!raw && IsSubClass) {
res = PythonCalls.Call(this, res);
}
return res;
}
object INativeType.GetValue(MemoryHolder owner, int offset, bool raw) {
if (IsStringType) {
SimpleType st = (SimpleType)_type;
string str;
if (st._type == SimpleTypeKind.Char) {
str = owner.ReadAnsiString(offset, _length);
} else {
str = owner.ReadUnicodeString(offset, _length);
}
// remove any trailing nulls
for (int i = 0; i < str.Length; i++) {
if (str[i] == '\x00') {
return str.Substring(0, i);
}
}
return str;
}
object[] res = new object[_length];
for (int i = 0; i < res.Length; i++) {
res[i] = _type.GetValue(owner, checked(offset + _type.Size * i), raw);
}
return List.FromArrayNoCopy(res);
}
