Pool of SID manager objects. More...

#include <XrdClSIDManager.hh>

Collaboration diagram for XrdCl::SIDMgrPool:

Public Member Functions
	~SIDMgrPool ()
	Destructor. More...

std::shared_ptr< SIDManager >	GetSIDMgr (const URL &url)

void	Recycle (SIDManager *mgr)

Static Public Member Functions
static SIDMgrPool &	Instance ()

Detailed Description

Pool of SID manager objects.

Definition at line 132 of file XrdClSIDManager.hh.

Constructor & Destructor Documentation

◆ ~SIDMgrPool()

XrdCl::SIDMgrPool::~SIDMgrPool ( )

inline

Destructor.

Definition at line 144 of file XrdClSIDManager.hh.

144 { }

Member Function Documentation

◆ GetSIDMgr()

std::shared_ptr< SIDManager > XrdCl::SIDMgrPool::GetSIDMgr ( const URL & url )

Parameters

url	: URL for which we need a SIDManager

Returns: : a shared pointer to SIDManager object, the pointer has

Definition at line 152 of file XrdClSIDManager.cc.

   {
     //--------------------------------------------------------------------------
     // Look for an instance of SID manager in the pool
     //--------------------------------------------------------------------------
     XrdSysMutexHelper lck1( mtx );
     SIDManager *mgr = 0;
     auto itr = pool.find( url.GetChannelId() );
     if( itr == pool.end() )
     {
       mgr = new SIDManager();
       pool[url.GetChannelId()] = mgr;
     }
     else mgr = itr->second;
  
     //--------------------------------------------------------------------------
     // Update the reference counter
     //--------------------------------------------------------------------------
     XrdSysMutexHelper lck2( mgr->pMutex );
     ++mgr->pRefCount;
  
     //--------------------------------------------------------------------------
     // Create a shared pointer that will recycle the SID manager
     //--------------------------------------------------------------------------
     RecycleSidMgr deleter;
     std::shared_ptr<SIDManager> ptr( mgr, deleter );
  
     return ptr;
   }

References XrdCl::URL::GetChannelId().

Referenced by XrdCl::XRootDChannelInfo::XRootDChannelInfo().

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◆ Instance()

SIDMgrPool & XrdCl::SIDMgrPool::Instance ( )

static

Returns: : instance of SIDMgrPool

Definition at line 25 of file XrdClSIDManager.cc.

   {
     //----------------------------------------------------------------------
     // We could also use a nifty counter but this is simpler and will do!
     //----------------------------------------------------------------------
     static SIDMgrPool *instance = new SIDMgrPool();
     return *instance;
   }

Referenced by XrdCl::XRootDChannelInfo::XRootDChannelInfo(), and XrdCl::MessageUtils::SendMessage().

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◆ Recycle()

void XrdCl::SIDMgrPool::Recycle ( SIDManager * mgr )

Parameters

mgr	: the SIDManager object to be recycled

Definition at line 182 of file XrdClSIDManager.cc.

   {
     //--------------------------------------------------------------------------
     // Lock the pool, we need to do it in the same order as in 'GetSIDMgr'
     //--------------------------------------------------------------------------
     XrdSysMutexHelper lck1( mtx );
  
     //--------------------------------------------------------------------------
     // Lock the SID manager object
     //--------------------------------------------------------------------------
     XrdSysMutexHelper lck2( mgr->pMutex );
     --mgr->pRefCount;
  
     if( !mgr->pRefCount )
     {
       //------------------------------------------------------------------------
       // Remove the SID manager from the pool
       //------------------------------------------------------------------------
       auto itr = pool.begin();
       for( ; itr != pool.end() ; ++itr )
         if( itr->second == mgr )
         {
           pool.erase( itr );
           break;
         }
  
       lck2.UnLock();
       delete mgr;
     }
   }

References XrdSysMutexHelper::UnLock().