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Реализация в cpp

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This commit is contained in:
Andrei Astafev 2020-04-06 00:06:57 +03:00
parent ce596d8113
commit 76a655aa6c
2 changed files with 18 additions and 16 deletions
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17
src/myx/filesystem/paths.cpp
View File

@ -13,6 +13,23 @@ namespace filesystem {
Paths::Paths() = default; Paths::Paths() = default;
Paths* Paths::getInstance()
{
volatile Paths* localInstance = mInstance.load( std::memory_order_acquire );
if ( !localInstance )
{
std::lock_guard< std::mutex > myLock( mMutex );
localInstance = mInstance.load( std::memory_order_relaxed );
if ( !localInstance ) // -V1036
{
localInstance = new Paths();
mInstance.store( const_cast< Paths* >( localInstance ), std::memory_order_release );
}
}
return( const_cast< Paths* >( localInstance ) );
}
Paths::HierarchyType Paths::getHierarchyType() Paths::HierarchyType Paths::getHierarchyType()
{ {
QRegExp binRegexp( "/s*bin$" ); QRegExp binRegexp( "/s*bin$" );

17
src/myx/filesystem/paths.hpp
View File

@ -91,22 +91,7 @@ public:
* @brief getInstance * @brief getInstance
* @return Уникальный экземпляр класса Paths * @return Уникальный экземпляр класса Paths
*/ */
static Paths* getInstance() static Paths* getInstance();
{
volatile Paths* localInstance = mInstance.load( std::memory_order_acquire );
if ( !localInstance )
{
std::lock_guard< std::mutex > myLock( mMutex );
localInstance = mInstance.load( std::memory_order_relaxed );
if ( !localInstance ) // -V1036
{
localInstance = new Paths();
mInstance.store( const_cast< Paths* >( localInstance ), std::memory_order_release );
}
}
return( const_cast< Paths* >( localInstance ) );
}
/** /**
* @brief Обновление путей с учётом расположения исполняемого файла * @brief Обновление путей с учётом расположения исполняемого файла