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MTRDefines_Internal.h
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/**
* Copyright (c) 2023 Project CHIP Authors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#import <Matter/MTRDefines.h>
#if __has_attribute(objc_direct)
#define MTR_DIRECT __attribute__((objc_direct))
#else
#define MTR_DIRECT
#endif
#if __has_attribute(objc_direct_members)
#define MTR_DIRECT_MEMBERS __attribute__((objc_direct_members))
#else
#define MTR_DIRECT_MEMBERS
#endif
#ifdef DEBUG
#define MTR_TESTABLE MTR_EXPORT
#else
#define MTR_TESTABLE
#endif
// clang-format off
/// Creates a weak shadow copy of the variable `local`
#define mtr_weakify(local) \
__weak typeof(local) _mtr_weak_##local = local
/// Copies the weak shadow copy of `local` created by `mtr_weakify`
/// back into a strong variable of the same name.
#define mtr_strongify(local) \
_Pragma("clang diagnostic push") \
_Pragma("clang diagnostic ignored \"-Wshadow\"") \
__strong typeof(local) _Nullable local = _mtr_weak_##local \
_Pragma("clang diagnostic pop")
/// Declares an unused local of unspecified type, to prevent accidental
/// references to a shadowed variable of the same name. Note that hiding
/// `self` does not prevent implicit references to self due to ivar access.
#define mtr_hide(local) \
_Pragma("clang diagnostic push") \
_Pragma("clang diagnostic ignored \"-Wshadow\"") \
__attribute__((unused)) variable_hidden_by_mtr_hide local; \
_Pragma("clang diagnostic pop")
typedef struct {} variable_hidden_by_mtr_hide;
// clang-format on
// mtr_[un]likely(expr): Evaluates a boolean expression and hints to the compiler that it is [un]likely to be true.
#define mtr_likely(expr) __builtin_expect(!!(expr), 1)
#define mtr_unlikely(expr) __builtin_expect(!!(expr), 0)
// Default timed interaction timeout, in ms, if another one is not provided.
#define MTR_DEFAULT_TIMED_INTERACTION_TIMEOUT_MS 10000
#pragma mark - XPC Defines
#define MTR_SIMPLE_REMOTE_XPC_GETTER(XPC_CONNECTION, NAME, TYPE, DEFAULT_VALUE, GETTER_NAME, PREFIX) \
\
-(TYPE) NAME \
{ \
__block TYPE outValue = DEFAULT_VALUE; \
\
NSXPCConnection * xpcConnection = XPC_CONNECTION; \
\
[[xpcConnection synchronousRemoteObjectProxyWithErrorHandler:^(NSError * _Nonnull error) { \
MTR_LOG_ERROR("Error: %@", error); \
}] PREFIX \
GETTER_NAME:^(TYPE returnValue) { \
outValue = returnValue; \
}]; \
\
return outValue; \
}
#define MTR_SIMPLE_REMOTE_XPC_COMMAND(XPC_CONNECTION, METHOD_SIGNATURE, ADDITIONAL_ARGUMENTS, PREFIX) \
\
-(void) METHOD_SIGNATURE \
{ \
NSXPCConnection * xpcConnection = XPC_CONNECTION; \
\
[[xpcConnection synchronousRemoteObjectProxyWithErrorHandler:^(NSError * _Nonnull error) { \
MTR_LOG_ERROR("Error: %@", error); \
}] PREFIX ADDITIONAL_ARGUMENTS]; \
}
#define MTR_COMPLEX_REMOTE_XPC_GETTER(XPC_CONNECTION, SIGNATURE, TYPE, DEFAULT_VALUE, ADDITIONAL_ARGUMENTS, PREFIX) \
-(TYPE) SIGNATURE \
{ \
__block TYPE outValue = DEFAULT_VALUE; \
\
NSXPCConnection * xpcConnection = XPC_CONNECTION; \
\
[[xpcConnection synchronousRemoteObjectProxyWithErrorHandler:^(NSError * _Nonnull error) { \
MTR_LOG_ERROR("Error: %@", error); \
}] PREFIX ADDITIONAL_ARGUMENTS:^(TYPE returnValue) { \
outValue = returnValue; \
}]; \
\
return outValue; \
}