Pool of SID manager objects. More...

#include <XrdClSIDManager.hh>

Collaboration diagram for XrdCl::SIDMgrPool:

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