Documentation de SFML 2.5.1

sf::ThreadLocalPtr< T > Class Template Reference

Pointer to a thread-local variable. More...

#include <ThreadLocalPtr.hpp>

Inheritance diagram for sf::ThreadLocalPtr< T >:
sf::ThreadLocal

Public Member Functions

 ThreadLocalPtr (T *value=NULL)
 Default constructor. More...
 
T & operator* () const
 Overload of unary operator *. More...
 
T * operator-> () const
 Overload of operator -> More...
 
 operator T* () const
 Conversion operator to implicitly convert the pointer to its raw pointer type (T*) More...
 
ThreadLocalPtr< T > & operator= (T *value)
 Assignment operator for a raw pointer parameter. More...
 
ThreadLocalPtr< T > & operator= (const ThreadLocalPtr< T > &right)
 Assignment operator for a ThreadLocalPtr parameter. More...
 

Private Member Functions

void setValue (void *value)
 Set the thread-specific value of the variable. More...
 
void * getValue () const
 Retrieve the thread-specific value of the variable. More...
 

Detailed Description

template<typename T>
class sf::ThreadLocalPtr< T >

Pointer to a thread-local variable.

sf::ThreadLocalPtr is a type-safe wrapper for storing pointers to thread-local variables.

A thread-local variable holds a different value for each different thread, unlike normal variables that are shared.

Its usage is completely transparent, so that it is similar to manipulating the raw pointer directly (like any smart pointer).

Usage example:

MyClass object1;
MyClass object2;
void thread1()
{
objectPtr = &object1; // doesn't impact thread2
...
}
void thread2()
{
objectPtr = &object2; // doesn't impact thread1
...
}
int main()
{
// Create and launch the two threads
sf::Thread t1(&thread1);
sf::Thread t2(&thread2);
t1.launch();
t2.launch();
return 0;
}

ThreadLocalPtr is designed for internal use; however you can use it if you feel like it fits well your implementation.

Definition at line 41 of file ThreadLocalPtr.hpp.

Constructor & Destructor Documentation

◆ ThreadLocalPtr()

template<typename T>
sf::ThreadLocalPtr< T >::ThreadLocalPtr ( T *  value = NULL)

Default constructor.

Parameters
valueOptional value to initialize the variable

Member Function Documentation

◆ operator T*()

template<typename T>
sf::ThreadLocalPtr< T >::operator T* ( ) const

Conversion operator to implicitly convert the pointer to its raw pointer type (T*)

Returns
Pointer to the actual object

◆ operator*()

template<typename T>
T& sf::ThreadLocalPtr< T >::operator* ( ) const

Overload of unary operator *.

Like raw pointers, applying the * operator returns a reference to the pointed-to object.

Returns
Reference to the thread-local variable

◆ operator->()

template<typename T>
T* sf::ThreadLocalPtr< T >::operator-> ( ) const

Overload of operator ->

Similarly to raw pointers, applying the -> operator returns the pointed-to object.

Returns
Pointer to the thread-local variable

◆ operator=() [1/2]

template<typename T>
ThreadLocalPtr<T>& sf::ThreadLocalPtr< T >::operator= ( T *  value)

Assignment operator for a raw pointer parameter.

Parameters
valuePointer to assign
Returns
Reference to self

◆ operator=() [2/2]

template<typename T>
ThreadLocalPtr<T>& sf::ThreadLocalPtr< T >::operator= ( const ThreadLocalPtr< T > &  right)

Assignment operator for a ThreadLocalPtr parameter.

Parameters
rightThreadLocalPtr to assign
Returns
Reference to self

The documentation for this class was generated from the following file: