ObjFW  Diff

Differences From Artifact [c48f1a2944]:

• File src/OFKernelEventObserver.h — part of check-in [220513a3f5] at 2015-05-09 18:13:19 on branch trunk — More OFKernelEventObserver refactoring

  This was necessary because select(), poll() and kevent() on FreeBSD and
  OS X would sometimes return 0 events, even if there are some, and
  sometimes return the correct number of events that were pending, meaning
  the number of events returned is unreliable. To make things worse,
  whether it returns 0 or the number of events that were pending is
  completely non-deterministic on both FreeBSD and OS X (running the same
  tests multiple times in a row would make it sometimes work and sometimes
  fail).

  In order to prevent code from depending on the return value of
  -[observeForTimeInterval:] (which would depend on select(), poll() and
  kevent() returning the correct number), OFKernelObserver no longer
  returns whether there were pending events. It is expected that
  -[observe] or -[observeForTimeInterval:] is just called in a loop as
  long as events should be handled.

  The tests have been changed as well to reflect this. What they do now is
  set a deadline and call -[observeForTimeInterval:] with a small timeout
  in a loop until the deadline is reached or all events have been handled.

  Note: DragonFlyBSD has not been tested, but will most likely behave like
  FreeBSD and OS X. (user: js, size: 6805) [annotate] [blame] [check-ins using]

To Artifact [5f1691d0b1]:

• File src/OFKernelEventObserver.h — part of check-in [5329fe7c1a] at 2015-06-12 23:59:20 on branch trunk — Add support for and use the new ObjC generics (user: js, size: 6958) [annotate] [blame] [check-ins using]

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 * file.
 */

#import "OFObject.h"

#import "socket.h"

@class OFMutableArray;
@class OFMutableDictionary;
@class OFDataArray;
#ifdef OF_HAVE_THREADS
@class OFMutex;
#endif
@class OFDate;

/*!

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 * file.
 */

#import "OFObject.h"

#import "socket.h"

@class OFMutableArray OF_GENERIC(ObjectType);
@class OFMutableDictionary OF_GENERIC(KeyType, ObjectType);
@class OFDataArray;
#ifdef OF_HAVE_THREADS
@class OFMutex;
#endif
@class OFDate;

/*!

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 * @brief A class that can observe multiple kernel events (e.g. streams being
 *	  ready to read) at once.
 *
 * @note Currently, Win32 can only observe TCP and UDP sockets!
 */
@interface OFKernelEventObserver: OFObject
{

	OFMutableArray *_readObjects;

	OFMutableArray *_writeObjects;
	OFMutableArray *_queue;
	OFDataArray *_queueActions;
	id <OFKernelEventObserverDelegate> _delegate;
#ifdef OF_HAVE_PIPE
	int _cancelFD[2];
#else
	of_socket_t _cancelFD[2];

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 * @brief A class that can observe multiple kernel events (e.g. streams being
 *	  ready to read) at once.
 *
 * @note Currently, Win32 can only observe TCP and UDP sockets!
 */
@interface OFKernelEventObserver: OFObject
{
	OFMutableArray OF_GENERIC(id <OFReadyForReadingObserving>)
	    *_readObjects;
	OFMutableArray OF_GENERIC(id <OFReadyForWritingObserving>)
	    *_writeObjects;
	OFMutableArray *_queue;
	OFDataArray *_queueActions;
	id <OFKernelEventObserverDelegate> _delegate;
#ifdef OF_HAVE_PIPE
	int _cancelFD[2];
#else
	of_socket_t _cancelFD[2];