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/*
* @copyright Copyright (c) 2016-2020 TOYOTA MOTOR CORPORATION.
*
* 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.
*/
////////////////////////////////////////////////////////////////////////////////////////////////////
/// @file ns_utility_sys_internal.hpp
/// @brief This file contains declaration of common APIs for NS_UtilityCenter.
///
////////////////////////////////////////////////////////////////////////////////////////////////////
//@{
#ifndef FRAMEWORK_UNIFIED_CLIENT_NS_UTILITYCENTER_INCLUDE_NS_UTILITY_SYS_INTERNAL_HPP_
#define FRAMEWORK_UNIFIED_CLIENT_NS_UTILITYCENTER_INCLUDE_NS_UTILITY_SYS_INTERNAL_HPP_
#include <native_service/frameworkunified_types.h>
#include <pthread.h>
#include <errno.h>
#include <native_service/ns_utility.hpp>
UI_32 utility_sys_rand(); // NOLINT (readability/nolint)
// Random Functions //////////////////////////////////////////////////////////
template< class T>
T randomValue(T min, T max) {
const int32_t lmin = static_cast< int32_t >(min);
const int32_t range = static_cast< int32_t >(max) - lmin + 1;
if (range > 0) {
return static_cast< T >(utility_sys_rand() % range + lmin);
} else {
return min;
}
}
template< class T, UI_32 N >
T randomItem(const T(&arr)[ N ]) {
return arr[ randomValue< UI_32 >(0, N - 1) ];
}
template< class T, class Lock > class CLockedData;
template< class T, class Lock, class Fn > typename FSig< Fn >::RType WithWriteLock(Fn, CLockedData< T, Lock > &);
template< class T, class Lock, class Fn > typename FSig< Fn >::RType WithWriteLock(Fn, CLockedData< T, Lock > &, // NOLINT (readability/nolint)
typename FSig< Fn >::TArg2); // NOLINT (readability/nolint)
template< class T, class Lock, class Fn > typename FSig< Fn >::RType WithWriteLock(Fn, CLockedData< T, Lock > &,
typename FSig< Fn >::TArg2, typename FSig< Fn >::TArg3);
template< class T, class Lock, class Fn > typename FSig< Fn >::RType WithWriteLock(Fn, CLockedData< T, Lock > &,
typename FSig< Fn >::TArg2, typename FSig< Fn >::TArg3, typename FSig< Fn >::TArg4);
template< class T, class Lock, class Fn > typename FSig< Fn >::RType WithWriteLock(Fn, CLockedData< T, Lock > &,
typename FSig< Fn >::TArg2, typename FSig< Fn >::TArg3, typename FSig< Fn >::TArg4, typename FSig< Fn >::TArg5);
template< class T, class Lock, class Fn > typename FSig< Fn >::RType WithWriteLock(Fn, CLockedData< T, Lock > &,
typename FSig< Fn >::TArg2, typename FSig< Fn >::TArg3, typename FSig< Fn >::TArg4, typename FSig< Fn >::TArg5,
typename FSig< Fn >::TArg6);
template< class T, class Lock, class Fn > typename FSig< Fn >::RType WithWriteLock(Fn, CLockedData< T, Lock > &,
typename FSig< Fn >::TArg2, typename FSig< Fn >::TArg3, typename FSig< Fn >::TArg4, typename FSig< Fn >::TArg5,
typename FSig< Fn >::TArg6, typename FSig< Fn >::TArg7);
template< class T, class Lock, class Fn > typename FSig< Fn >::RType WithReadLock(Fn, CLockedData< T, Lock > &); // NOLINT (readability/nolint)
template< class T, class Lock, class Fn > typename FSig< Fn >::RType WithReadLock(Fn, CLockedData< T, Lock > &,
typename FSig< Fn >::TArg2);
template< class T, class Lock, class Fn > typename FSig< Fn >::RType WithReadLock(Fn, CLockedData< T, Lock > &,
typename FSig< Fn >::TArg2, typename FSig< Fn >::TArg3);
template< class T, class Lock, class Fn > typename FSig< Fn >::RType WithReadLock(Fn, CLockedData< T, Lock > &,
typename FSig< Fn >::TArg2, typename FSig< Fn >::TArg3, typename FSig< Fn >::TArg4);
template< class T, class Lock, class Fn > typename FSig< Fn >::RType WithReadLock(Fn, CLockedData< T, Lock > &,
typename FSig< Fn >::TArg2, typename FSig< Fn >::TArg3, typename FSig< Fn >::TArg4, typename FSig< Fn >::TArg5);
template< class T, class Lock, class Fn > typename FSig< Fn >::RType WithReadLock(Fn, CLockedData< T, Lock > &,
typename FSig< Fn >::TArg2, typename FSig< Fn >::TArg3, typename FSig< Fn >::TArg4, typename FSig< Fn >::TArg5,
typename FSig< Fn >::TArg6);
template< class T, class Lock, class Fn > typename FSig< Fn >::RType WithReadLock(Fn, CLockedData< T, Lock > &,
typename FSig< Fn >::TArg2, typename FSig< Fn >::TArg3, typename FSig< Fn >::TArg4, typename FSig< Fn >::TArg5,
typename FSig< Fn >::TArg6, typename FSig< Fn >::TArg7);
template< class T, class Lock >
class CWithReadLock {
public:
typedef const T TData;
CWithReadLock(CLockedData< T, Lock > &);
~CWithReadLock();
template< class T1, class Lock1, class Fn >
friend typename FSig< Fn >::RType WithReadLock(Fn, CLockedData< T1, Lock1 > &);
template< class T1, class Lock1, class Fn >
friend typename FSig< Fn >::RType WithReadLock(Fn, CLockedData< T1, Lock1 > &, typename FSig< Fn >::TArg2);
template< class T1, class Lock1, class Fn >
friend typename FSig< Fn >::RType WithReadLock(Fn, CLockedData< T1, Lock1 > &, typename FSig< Fn >::TArg2,
typename FSig< Fn >::TArg3);
template< class T1, class Lock1, class Fn >
friend typename FSig< Fn >::RType WithReadLock(Fn, CLockedData< T1, Lock1 > &, typename FSig< Fn >::TArg2,
typename FSig< Fn >::TArg3, typename FSig< Fn >::TArg4);
template< class T1, class Lock1, class Fn >
friend typename FSig< Fn >::RType WithReadLock(Fn, CLockedData< T1, Lock1 > &, typename FSig< Fn >::TArg2,
typename FSig< Fn >::TArg3, typename FSig< Fn >::TArg4, typename FSig< Fn >::TArg5);
template< class T1, class Lock1, class Fn >
friend typename FSig< Fn >::RType WithReadLock(Fn, CLockedData< T1, Lock1 > &, typename FSig< Fn >::TArg2,
typename FSig< Fn >::TArg3, typename FSig< Fn >::TArg4, typename FSig< Fn >::TArg5, typename FSig< Fn >::TArg6);
template< class T1, class Lock1, class Fn >
friend typename FSig< Fn >::RType WithReadLock(Fn, CLockedData< T1, Lock1 > &, typename FSig< Fn >::TArg2,
typename FSig< Fn >::TArg3, typename FSig< Fn >::TArg4, typename FSig< Fn >::TArg5, typename FSig< Fn >::TArg6,
typename FSig< Fn >::TArg7);
private:
DISALLOW_COPY_AND_ASSIGN(CWithReadLock);
const TData &data() const; // NOLINT (readability/nolint)
CLockedData< T, Lock > &m_LockedData;
};
template< class T, class Lock >
class CWithWriteLock {
public:
typedef T TData;
CWithWriteLock(CLockedData< T, Lock > &);
~CWithWriteLock();
template< class T1, class Lock1, class Fn >
friend typename FSig< Fn >::RType WithWriteLock(Fn, CLockedData< T1, Lock1 > &);
template< class T1, class Lock1, class Fn >
friend typename FSig< Fn >::RType WithWriteLock(Fn, CLockedData< T1, Lock1 > &, typename FSig< Fn >::TArg2);
template< class T1, class Lock1, class Fn >
friend typename FSig< Fn >::RType WithWriteLock(Fn, CLockedData< T1, Lock1 > &, typename FSig< Fn >::TArg2,
typename FSig< Fn >::TArg3);
template< class T1, class Lock1, class Fn >
friend typename FSig< Fn >::RType WithWriteLock(Fn, CLockedData< T1, Lock1 > &, typename FSig< Fn >::TArg2,
typename FSig< Fn >::TArg3, typename FSig< Fn >::TArg4);
template< class T1, class Lock1, class Fn >
friend typename FSig< Fn >::RType WithWriteLock(Fn, CLockedData< T1, Lock1 > &, typename FSig< Fn >::TArg2,
typename FSig< Fn >::TArg3, typename FSig< Fn >::TArg4, typename FSig< Fn >::TArg5);
template< class T1, class Lock1, class Fn >
friend typename FSig< Fn >::RType WithWriteLock(Fn, CLockedData< T1, Lock1 > &, typename FSig< Fn >::TArg2,
typename FSig< Fn >::TArg3, typename FSig< Fn >::TArg4, typename FSig< Fn >::TArg5, typename FSig< Fn >::TArg6);
template< class T1, class Lock1, class Fn >
friend typename FSig< Fn >::RType WithWriteLock(Fn, CLockedData< T1, Lock1 > &, typename FSig< Fn >::TArg2,
typename FSig< Fn >::TArg3, typename FSig< Fn >::TArg4, typename FSig< Fn >::TArg5, typename FSig< Fn >::TArg6,
typename FSig< Fn >::TArg7);
private:
DISALLOW_COPY_AND_ASSIGN(CWithWriteLock);
TData &data(); // NOLINT (readability/nolint)
CLockedData< T, Lock > &m_LockedData;
};
/// \brief Represents a piece of data protected by a lock
///
/// Data wrapped with Can only be accessed using helper functions
/// WithReadLock and WithWriteLock
///
/// Example usage:
///
/// void ModifySharedData( int& n ) { ... modify n ... };
/// int ReadSharedData( const int& n ){ ... read n ... };
///
/// void DoSomething()
/// {
/// CLocked< int > my_data( -1 ); // initialize value to -1
/// WithWriteLock( ModifySharedData, my_data );
/// int val = WithReadLock( ReadSharedData, my_data );
/// }
///
/// NOTE: that data is locked for the duration of the time that helper functions
/// ModifySharedData, and ReadSharedData are called - once they return, the data becomes
/// unlocked automatically.
template< class T, class Lock = CMutex >
class CLockedData {
public:
typedef CWithReadLock< T, Lock > TReadLock;
typedef CWithWriteLock< T, Lock > TWriteLock;
CLockedData() {}
template< class T1 > CLockedData(T1 t1) : m_data(t1) {}
template< class T1, class T2 > CLockedData(T1 t1, T2 t2) : m_data(t1, t2) {}
template< class T1, class T2, class T3 > CLockedData(T1 t1, T2 t2, T3 t3) : m_data(t1, t2, t3) {}
template< class T1, class T2, class T3, class T4 > CLockedData(T1 t1, T2 t2, T3 t3, T4 t4) : m_data(t1, t2, t3,
t4) {}
template< class T1, class T2, class T3, class T4, class T5 > CLockedData(T1 t1, T2 t2, T3 t3, T4 t4,
T5 t5) : m_data(t1, t2, t3, t4, t5) {}
template< class T1, class T2, class T3, class T4, class T5, class T6 > CLockedData(T1 t1, T2 t2, T3 t3, T4 t4, T5 t5,
T6 t6) : m_data(t1, t2, t3, t4, t5, t6) {}
template< class T1, class T2, class T3, class T4, class T5, class T6, class T7 > CLockedData(T1 t1, T2 t2, T3 t3,
T4 t4, T5 t5, T6 t6, T7 t7) : m_data(t1, t2, t3, t4, t5, t6, t7) {}
friend class CWithReadLock< T, Lock >;
friend class CWithWriteLock< T, Lock >;
private:
T m_data;
Lock m_lock;
};
// CWithReadLock and CWithWriteLock implementation //////////////////////////////////////////////
template< class T, class Lock >
CWithReadLock< T, Lock >::CWithReadLock(CLockedData< T, Lock > &ld) : m_LockedData(ld) {
m_LockedData.m_lock.ReadLock();
}
template< class T, class Lock >
CWithReadLock< T, Lock >::~CWithReadLock() {
m_LockedData.m_lock.Unlock();
}
template< class T, class Lock >
const typename CWithReadLock< T, Lock >::TData &CWithReadLock< T, Lock >::data() const { // NOLINT (readability/nolint)
return m_LockedData.m_data;
}
template< class T, class Lock >
CWithWriteLock< T, Lock >::CWithWriteLock(CLockedData< T, Lock > &ld) : m_LockedData(ld) {
m_LockedData.m_lock.WriteLock();
}
template< class T, class Lock >
CWithWriteLock< T, Lock >::~CWithWriteLock() {
m_LockedData.m_lock.Unlock();
}
template< class T, class Lock >
typename CWithWriteLock< T, Lock >::TData &CWithWriteLock< T, Lock >::data() { // NOLINT (readability/nolint)
return m_LockedData.m_data;
}
// WithReadLock / WithWriteLock ///////////////////////////////////////////////
template< class T, class Lock, class Fn >
typename FSig< Fn >::RType WithReadLock(Fn f, CLockedData< T, Lock > &data) {
typename CLockedData< T, Lock >::TReadLock rl(data);
return f(rl.data());
}
template< class T, class Lock, class Fn >
typename FSig< Fn >::RType WithReadLock(Fn f, CLockedData< T, Lock > &data, typename FSig< Fn >::TArg2 t2) {
typename CLockedData< T, Lock >::TReadLock rl(data);
return f(rl.data(), t2);
}
template< class T, class Lock, class Fn >
typename FSig< Fn >::RType WithReadLock(Fn f, CLockedData< T, Lock > &data, typename FSig< Fn >::TArg2 t2,
typename FSig< Fn >::TArg3 t3) {
typename CLockedData< T, Lock >::TReadLock rl(data);
return f(rl.data(), t2, t3);
}
template< class T, class Lock, class Fn >
typename FSig< Fn >::RType WithReadLock(Fn f, CLockedData< T, Lock > &data, typename FSig< Fn >::TArg2 t2,
typename FSig< Fn >::TArg3 t3, typename FSig< Fn >::TArg4 t4) {
typename CLockedData< T, Lock >::TReadLock rl(data);
return f(rl.data(), t2, t3, t4);
}
template< class T, class Lock, class Fn >
typename FSig< Fn >::RType WithReadLock(Fn f, CLockedData< T, Lock > &data, typename FSig< Fn >::TArg2 t2,
typename FSig< Fn >::TArg3 t3, typename FSig< Fn >::TArg4 t4, typename FSig< Fn >::TArg5 t5) {
typename CLockedData< T, Lock >::TReadLock rl(data);
return f(rl.data(), t2, t3, t4, t5);
}
template< class T, class Lock, class Fn >
typename FSig< Fn >::RType WithReadLock(Fn f, CLockedData< T, Lock > &data, typename FSig< Fn >::TArg2 t2,
typename FSig< Fn >::TArg3 t3, typename FSig< Fn >::TArg4 t4, typename FSig< Fn >::TArg5 t5,
typename FSig< Fn >::TArg6 t6) {
typename CLockedData< T, Lock >::TReadLock rl(data);
return f(rl.data(), t2, t3, t4, t5, t6);
}
template< class T, class Lock, class Fn >
typename FSig< Fn >::RType WithReadLock(Fn f, CLockedData< T, Lock > &data, typename FSig< Fn >::TArg2 t2,
typename FSig< Fn >::TArg3 t3, typename FSig< Fn >::TArg4 t4, typename FSig< Fn >::TArg5 t5,
typename FSig< Fn >::TArg6 t6, typename FSig< Fn >::TArg7 t7) {
typename CLockedData< T, Lock >::TReadLock rl(data);
return f(rl.data(), t2, t3, t4, t5, t6, t7);
}
template< class T, class Lock, class Fn >
typename FSig< Fn >::RType WithWriteLock(Fn f, CLockedData< T, Lock > &data) {
typename CLockedData< T, Lock >::TWriteLock wl(data);
return f(wl.data());
}
template< class T, class Lock, class Fn >
typename FSig< Fn >::RType WithWriteLock(Fn f, CLockedData< T, Lock > &data, typename FSig< Fn >::TArg2 t2) {
typename CLockedData< T, Lock >::TWriteLock wl(data);
return f(wl.data(), t2);
}
template< class T, class Lock, class Fn >
typename FSig< Fn >::RType WithWriteLock(Fn f, CLockedData< T, Lock > &data, typename FSig< Fn >::TArg2 t2,
typename FSig< Fn >::TArg3 t3) {
typename CLockedData< T, Lock >::TWriteLock wl(data);
return f(wl.data(), t2, t3);
}
template< class T, class Lock, class Fn >
typename FSig< Fn >::RType WithWriteLock(Fn f, CLockedData< T, Lock > &data, typename FSig< Fn >::TArg2 t2,
typename FSig< Fn >::TArg3 t3, typename FSig< Fn >::TArg4 t4) {
typename CLockedData< T, Lock >::TWriteLock wl(data);
return f(wl.data(), t2, t3, t4);
}
template< class T, class Lock, class Fn >
typename FSig< Fn >::RType WithWriteLock(Fn f, CLockedData< T, Lock > &data, typename FSig< Fn >::TArg2 t2,
typename FSig< Fn >::TArg3 t3, typename FSig< Fn >::TArg4 t4, typename FSig< Fn >::TArg5 t5) {
typename CLockedData< T, Lock >::TWriteLock wl(data);
return f(wl.data(), t2, t3, t4, t5);
}
template< class T, class Lock, class Fn >
typename FSig< Fn >::RType WithWriteLock(Fn f, CLockedData< T, Lock > &data, typename FSig< Fn >::TArg2 t2,
typename FSig< Fn >::TArg3 t3, typename FSig< Fn >::TArg4 t4, typename FSig< Fn >::TArg5 t5,
typename FSig< Fn >::TArg6 t6) {
typename CLockedData< T, Lock >::TWriteLock wl(data);
return f(wl.data(), t2, t3, t4, t5, t6);
}
template< class T, class Lock, class Fn >
typename FSig< Fn >::RType WithWriteLock(Fn f, CLockedData< T, Lock > &data, typename FSig< Fn >::TArg2 t2,
typename FSig< Fn >::TArg3 t3, typename FSig< Fn >::TArg4 t4, typename FSig< Fn >::TArg5 t5,
typename FSig< Fn >::TArg6 t6, typename FSig< Fn >::TArg7 t7) {
typename CLockedData< T, Lock >::TWriteLock wl(data);
return f(wl.data(), t2, t3, t4, t5, t6, t7);
}
#endif // FRAMEWORK_UNIFIED_CLIENT_NS_UTILITYCENTER_INCLUDE_NS_UTILITY_SYS_INTERNAL_HPP_
//@}
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