public static extern int kowhai_get_int8(ref kowhai_tree_t tree, int num_symbols, IntPtr symbols, out byte result);
public static Tree CreateFromNativeTree(kowhai_tree_t nativeTree)
{
Tree tree = new Tree();
int count;
if (kowhai_get_node_count(nativeTree.desc, out count) == STATUS_OK)
{
// copy descriptor
tree.Descriptor = new kowhai_node_t[count];
byte[] temp = new byte[count * Marshal.SizeOf(typeof(kowhai_node_t))];
Marshal.Copy(nativeTree.desc, temp, 0, temp.Length);
GCHandle p = GCHandle.Alloc(tree.Descriptor, GCHandleType.Pinned);
Marshal.Copy(temp, 0, p.AddrOfPinnedObject(), temp.Length);
p.Free();
// copy data
if (kowhai_get_node_size(nativeTree.desc, out count) == STATUS_OK)
{
tree.Data = new byte[count];
Marshal.Copy(nativeTree.data, tree.Data, 0, tree.Data.Length);
}
}
return tree;
}
public static extern int kowhai_get_float(ref kowhai_tree_t tree, int num_symbols, IntPtr symbols, out float result);
public static int Write(Tree tree, kowhai_symbol_t[] symbolPath, int offset, byte[] data)
{
GCHandle hDesc = GCHandle.Alloc(tree.Descriptor, GCHandleType.Pinned);
GCHandle hTreeData = GCHandle.Alloc(tree.Data, GCHandleType.Pinned);
kowhai_tree_t nativeTree = new kowhai_tree_t();
nativeTree.desc = hDesc.AddrOfPinnedObject();
nativeTree.data = hTreeData.AddrOfPinnedObject();
GCHandle hSyms = GCHandle.Alloc(symbolPath, GCHandleType.Pinned);
GCHandle hWriteData = GCHandle.Alloc(data, GCHandleType.Pinned);
int result = kowhai_write(ref nativeTree, symbolPath.Length, hSyms.AddrOfPinnedObject(), offset, hWriteData.AddrOfPinnedObject(), data.Length);
hWriteData.Free();
hSyms.Free();
hTreeData.Free();
hDesc.Free();
return result;
}
public static extern int kowhai_write(ref kowhai_tree_t tree, int num_symbols, IntPtr symbols, int write_offset, IntPtr value, int write_size);
public static extern int kowhai_set_int8(ref kowhai_tree_t tree, int num_symbols, IntPtr symbols, byte value);
public static extern int kowhai_set_float(ref kowhai_tree_t tree, int num_symbols, IntPtr symbols, float value);
public static extern int kowhai_read(ref kowhai_tree_t tree, int num_symbols, IntPtr symbols, int read_offset, IntPtr result, int read_size);