xref: /aosp_15_r20/external/cronet/ipc/ipc_param_traits.h (revision 6777b5387eb2ff775bb5750e3f5d96f37fb7352b)
1*6777b538SAndroid Build Coastguard Worker // Copyright 2010 The Chromium Authors
2*6777b538SAndroid Build Coastguard Worker // Use of this source code is governed by a BSD-style license that can be
3*6777b538SAndroid Build Coastguard Worker // found in the LICENSE file.
4*6777b538SAndroid Build Coastguard Worker 
5*6777b538SAndroid Build Coastguard Worker #ifndef IPC_IPC_PARAM_TRAITS_H_
6*6777b538SAndroid Build Coastguard Worker #define IPC_IPC_PARAM_TRAITS_H_
7*6777b538SAndroid Build Coastguard Worker 
8*6777b538SAndroid Build Coastguard Worker // Our IPC system uses the following partially specialized header to define how
9*6777b538SAndroid Build Coastguard Worker // a data type is read, written and logged in the IPC system.
10*6777b538SAndroid Build Coastguard Worker 
11*6777b538SAndroid Build Coastguard Worker namespace IPC {
12*6777b538SAndroid Build Coastguard Worker namespace internal {
13*6777b538SAndroid Build Coastguard Worker 
14*6777b538SAndroid Build Coastguard Worker template <typename T>
15*6777b538SAndroid Build Coastguard Worker struct AlwaysFalse {
16*6777b538SAndroid Build Coastguard Worker   static const bool value = false;
17*6777b538SAndroid Build Coastguard Worker };
18*6777b538SAndroid Build Coastguard Worker 
19*6777b538SAndroid Build Coastguard Worker }  // namespace internal
20*6777b538SAndroid Build Coastguard Worker 
21*6777b538SAndroid Build Coastguard Worker template <class P> struct ParamTraits {
22*6777b538SAndroid Build Coastguard Worker   static_assert(internal::AlwaysFalse<P>::value,
23*6777b538SAndroid Build Coastguard Worker                 "Cannot find the IPC::ParamTraits specialization. Did you "
24*6777b538SAndroid Build Coastguard Worker                 "forget to include the corresponding header file?");
25*6777b538SAndroid Build Coastguard Worker };
26*6777b538SAndroid Build Coastguard Worker 
27*6777b538SAndroid Build Coastguard Worker template <class P>
28*6777b538SAndroid Build Coastguard Worker struct SimilarTypeTraits {
29*6777b538SAndroid Build Coastguard Worker   typedef P Type;
30*6777b538SAndroid Build Coastguard Worker };
31*6777b538SAndroid Build Coastguard Worker 
32*6777b538SAndroid Build Coastguard Worker }  // namespace IPC
33*6777b538SAndroid Build Coastguard Worker 
34*6777b538SAndroid Build Coastguard Worker #endif  // IPC_IPC_PARAM_TRAITS_H_
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