edm::SharedResourcesAcquirer Class Reference

#include <SharedResourcesAcquirer.h>

Public Member Functions
void	lock ()
size_t	numberOfResources () const
	The number returned may be less than the number of resources requested if a resource is only used by one module and therefore is not being shared. More...
SharedResourcesAcquirer &	operator= (const SharedResourcesAcquirer &)=default
	SharedResourcesAcquirer ()=default
	SharedResourcesAcquirer (std::vector< std::recursive_mutex * > &&iResources)
	SharedResourcesAcquirer (SharedResourcesAcquirer &&)=default
	SharedResourcesAcquirer (const SharedResourcesAcquirer &)=default
template<typename FUNC >
void	temporaryUnlock (FUNC iFunc)
void	unlock ()
	~SharedResourcesAcquirer ()=default

Private Attributes
std::vector < std::recursive_mutex * >	m_resources

Friends
class	::testSharedResourcesRegistry

Detailed Description

Definition at line 31 of file SharedResourcesAcquirer.h.

Constructor & Destructor Documentation

edm::SharedResourcesAcquirer::SharedResourcesAcquirer ( )

default

edm::SharedResourcesAcquirer::SharedResourcesAcquirer ( std::vector< std::recursive_mutex * > &&  iResources )

inlineexplicit

Definition at line 37 of file SharedResourcesAcquirer.h.

                                                                                 :
    m_resources(iResources){}

edm::SharedResourcesAcquirer::SharedResourcesAcquirer ( SharedResourcesAcquirer &&  )

default

edm::SharedResourcesAcquirer::SharedResourcesAcquirer ( const SharedResourcesAcquirer &  )

default

edm::SharedResourcesAcquirer::~SharedResourcesAcquirer ( )

default

Member Function Documentation

void SharedResourcesAcquirer::lock

(

void

)

Definition at line 20 of file SharedResourcesAcquirer.cc.

References visualization-live-secondInstance_cfg::m, and m_resources.

                                     {
    for(auto m : m_resources) {
      m->lock();
    }
  }

size_t edm::SharedResourcesAcquirer::numberOfResources ( ) const

inline

The number returned may be less than the number of resources requested if a resource is only used by one module and therefore is not being shared.

Definition at line 61 of file SharedResourcesAcquirer.h.

References m_resources.

{ return m_resources.size();}

SharedResourcesAcquirer& edm::SharedResourcesAcquirer::operator= ( const SharedResourcesAcquirer &  )

default

template<typename FUNC >

void edm::SharedResourcesAcquirer::temporaryUnlock ( FUNC  iFunc )

inline

Used by the framework to temporarily unlock a resource in the case where a module is temporarily suspended, e.g. when a Event::getByLabel call launches a Producer via unscheduled processing

Definition at line 53 of file SharedResourcesAcquirer.h.

References unlock().

Referenced by edm::EventPrincipal::unscheduledFill().

                                     {
      auto iThis = this;
      std::shared_ptr<void> guard(nullptr,[iThis](void* ) {iThis->lock();});
      this->unlock();
      iFunc();
    }

void SharedResourcesAcquirer::unlock

(

void

)

Definition at line 26 of file SharedResourcesAcquirer.cc.

References m_resources.

Referenced by temporaryUnlock().

                                       {
    for(auto it = m_resources.rbegin(), itEnd = m_resources.rend();
        it != itEnd; ++it) {
      (*it)->unlock();
    }
  }

Friends And Related Function Documentation

friend class ::testSharedResourcesRegistry

friend

Definition at line 34 of file SharedResourcesAcquirer.h.

Member Data Documentation

std::vector<std::recursive_mutex*> edm::SharedResourcesAcquirer::m_resources

private

Definition at line 65 of file SharedResourcesAcquirer.h.

Referenced by lock(), numberOfResources(), and unlock().