CStringRegistry::GetIDForKey

/* CStringRegistry::GetIDForKey(unsigned short) */

undefined4 __thiscall CStringRegistry::GetIDForKey(CStringRegistry *this,ushort param_1)

{
  int iVar1;
  uint uVar2;
  ushort *puVar3;
  int iVar4;
  
  iVar1 = *(int *)this;
  uVar2 = (uint)param_1;
  if (((int)uVar2 < *(int *)(iVar1 + 8)) && (param_1 <= *(ushort *)(iVar1 + 0x16))) {
    if (CUtlRBTree<CUtlMap<char_const*,int,unsigned_short>::Node_t,unsigned_short,CUtlMap<char_const*,int,unsigned_short>::CKeyLess,CUtlMemory<UtlRBTreeNode_t<CUtlMap<char_const*,int,unsigned_short>::Node_t,unsigned_short>,unsigned_short>>
        ::Links(unsigned_short)::s_Sentinel == '\0') {
      iVar4 = __cxa_guard_acquire(&CUtlRBTree<CUtlMap<char_const*,int,unsigned_short>::Node_t,unsigned_short,CUtlMap<char_const*,int,unsigned_short>::CKeyLess,CUtlMemory<UtlRBTreeNode_t<CUtlMap<char_const*,int,unsigned_short>::Node_t,unsigned_short>,unsigned_short>>
                                   ::Links(unsigned_short)::s_Sentinel);
      if (iVar4 != 0) {
        DAT_00f2131a = 0xffff;
        CUtlRBTree<CUtlMap<char_const*,int,unsigned_short>::Node_t,unsigned_short,CUtlMap<char_const*,int,unsigned_short>::CKeyLess,CUtlMemory<UtlRBTreeNode_t<CUtlMap<char_const*,int,unsigned_short>::Node_t,unsigned_short>,unsigned_short>>
        ::Links(unsigned_short)::s_Sentinel = 0xffff;
        DAT_00f2131c = 0xffff;
        __cxa_guard_release(&CUtlRBTree<CUtlMap<char_const*,int,unsigned_short>::Node_t,unsigned_short,CUtlMap<char_const*,int,unsigned_short>::CKeyLess,CUtlMemory<UtlRBTreeNode_t<CUtlMap<char_const*,int,unsigned_short>::Node_t,unsigned_short>,unsigned_short>>
                             ::Links(unsigned_short)::s_Sentinel);
      }
    }
    if (param_1 == 0xffff) {
      puVar3 = &CUtlRBTree<CUtlMap<char_const*,int,unsigned_short>::Node_t,unsigned_short,CUtlMap<char_const*,int,unsigned_short>::CKeyLess,CUtlMemory<UtlRBTreeNode_t<CUtlMap<char_const*,int,unsigned_short>::Node_t,unsigned_short>,unsigned_short>>
                ::Links(unsigned_short)::s_Sentinel;
    }
    else {
      puVar3 = (ushort *)(uVar2 * 0x10 + *(int *)(iVar1 + 4));
    }
    if (param_1 != *puVar3) {
      return *(undefined4 *)(uVar2 * 0x10 + *(int *)(*(int *)this + 4) + 0xc);
    }
  }
  return 0;
}