Tasks

Other Methods

• + sharedGlobalLock

  Get global singleton.

Render Lock

• – lock

  Will lock if the internal counter is depleted. Counter value will depend on the device (cores, memory)

• – unlock

  Will unlock and potentially signal waiting threads on lock.

Document Provider Tracking

• – registerDocumentProvider:

  Register any document provider that opens a CGPDFDocument reference.

• – deregisterDocumentProvider:

  Removes any document provider who closed the document reference.

• – freeAllDocumentProviders

  Requests a document close on all providers – might not be instant if they curently work with the reference.

•   allowedOpenDocumentRequests

  Number of requests we allow to keep in memory for faster access.

  property
• – limitOpenDocumentProviders

  Sends close messages until we have the allowed number of document providers open.