1 //
2 // Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2021
3 //
4 // Distributed under the Boost Software License, Version 1.0. (See accompanying
5 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
6 //
7 #pragma once
8 
9 #include "td/telegram/td_api.h"
10 
11 #include "td/utils/common.h"
12 #include "td/utils/StringBuilder.h"
13 
14 #include <functional>
15 #include <type_traits>
16 
17 namespace td {
18 
19 class CallId {
20  public:
21   CallId() = default;
22 
CallId(int32 call_id)23   explicit CallId(int32 call_id) : id(call_id) {
24   }
25 
26   template <class T, typename = std::enable_if_t<std::is_convertible<T, int32>::value>>
27   CallId(T call_id) = delete;
28 
is_valid()29   bool is_valid() const {
30     return id != 0;
31   }
32 
get()33   int32 get() const {
34     return id;
35   }
36 
get_call_id_object()37   auto get_call_id_object() const {
38     return td_api::make_object<td_api::callId>(id);
39   }
40 
41   bool operator==(const CallId &other) const {
42     return id == other.id;
43   }
44 
45  private:
46   int32 id{0};
47 };
48 
49 struct CallIdHash {
operatorCallIdHash50   std::size_t operator()(CallId call_id) const {
51     return std::hash<int32>()(call_id.get());
52   }
53 };
54 
55 inline StringBuilder &operator<<(StringBuilder &sb, const CallId call_id) {
56   return sb << "call " << call_id.get();
57 }
58 
59 }  // namespace td
60