1 //
2 //
3 // Copyright 2017 gRPC authors.
4 //
5 // Licensed under the Apache License, Version 2.0 (the "License");
6 // you may not use this file except in compliance with the License.
7 // You may obtain a copy of the License at
8 //
9 //     http://www.apache.org/licenses/LICENSE-2.0
10 //
11 // Unless required by applicable law or agreed to in writing, software
12 // distributed under the License is distributed on an "AS IS" BASIS,
13 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 // See the License for the specific language governing permissions and
15 // limitations under the License.
16 //
17 //
18 
19 #ifndef GRPC_SRC_CORE_LIB_GPRPP_MEMORY_H
20 #define GRPC_SRC_CORE_LIB_GPRPP_MEMORY_H
21 
22 #include <grpc/support/port_platform.h>
23 
24 #include <memory>
25 #include <type_traits>
26 
27 #include <grpc/support/alloc.h>
28 
29 namespace grpc_core {
30 
31 class DefaultDeleteChar {
32  public:
operator()33   void operator()(char* p) {
34     if (p == nullptr) return;
35     gpr_free(p);
36   }
37 };
38 
39 // UniquePtr<T> is only allowed for char and UniquePtr<char> is deprecated
40 // in favor of std::string. UniquePtr<char> is equivalent std::unique_ptr
41 // except that it uses gpr_free for deleter.
42 template <typename T>
43 using UniquePtr = std::unique_ptr<T, DefaultDeleteChar>;
44 
45 template <class T>
Zalloc()46 T* Zalloc() {
47   static_assert(std::is_trivial<T>::value, "Type should be trivial");
48   return static_cast<T*>(gpr_zalloc(sizeof(T)));
49 }
50 
51 }  // namespace grpc_core
52 
53 #endif  // GRPC_SRC_CORE_LIB_GPRPP_MEMORY_H
54