/// <summary>
/// 把 list 送入非托管空间，返回其指针
/// </summary>
/// <param name="list"></param>
/// <returns></returns>
public static IntPtr slist2_ptr(SPair[] list)
{
if (list == null || list.Length == 0)
{
return(IntPtr.Zero);
}
int sz = Marshal.SizeOf(typeof(NativePcsSList2));
IntPtr lstPtr = Marshal.AllocHGlobal(sz * list.Length);
IntPtr p = lstPtr;
byte[] bytes;
NativePcsSList2 item;
for (int i = 0; i < list.Length; i++)
{
item = new NativePcsSList2();
item.str1 = utf8_str_ptr(list[i].str1);
item.str2 = utf8_str_ptr(list[i].str2);
if (i < list.Length - 1) /*不是最后一个*/
{
item.next = IntPtrAdd(p, Marshal.SizeOf(typeof(NativePcsSList2)));
}
else
{
item.next = IntPtr.Zero;
}
bytes = StructToBytes(item);
Marshal.Copy(bytes, 0, p, bytes.Length);
p = item.next;
}
return(lstPtr);
}
/// <summary>
/// 释放非托管空间的由 slist2_ptr() 创建的空间
/// </summary>
/// <param name="ptr"></param>
public static void free_slist2_ptr(IntPtr ptr)
{
IntPtr p = ptr;
while (p != IntPtr.Zero)
{
NativePcsSList2 item = (NativePcsSList2)Marshal.PtrToStructure(p, typeof(NativePcsSList2));
if (item.str1 != IntPtr.Zero)
{
free_str_ptr(item.str1);
}
if (item.str2 != IntPtr.Zero)
{
free_str_ptr(item.str2);
}
p = item.next;
}
Marshal.FreeHGlobal(ptr);
}
/// <summary>
/// 把 list 送入非托管空间，返回其指针
/// </summary>
/// <param name="list"></param>
/// <returns></returns>
public static IntPtr slist2_ptr(SPair[] list)
{
if (list == null || list.Length == 0)
return IntPtr.Zero;
int sz = Marshal.SizeOf(typeof(NativePcsSList2));
IntPtr lstPtr = Marshal.AllocHGlobal(sz * list.Length);
IntPtr p = lstPtr;
byte[] bytes;
NativePcsSList2 item;
for (int i = 0; i < list.Length; i++)
{
item = new NativePcsSList2();
item.str1 = utf8_str_ptr(list[i].str1);
item.str2 = utf8_str_ptr(list[i].str2);
if (i < list.Length - 1) /*不是最后一个*/
item.next = IntPtrAdd(p, Marshal.SizeOf(typeof(NativePcsSList2)));
else
item.next = IntPtr.Zero;
bytes = StructToBytes(item);
Marshal.Copy(bytes, 0, p, bytes.Length);
p = item.next;
}
return lstPtr;
}