csEventQueue

In file libs/csinput/cseventq.h:

class csEventQueue : public csBase

This class represents a windowing system event queue

Inheritance:

Public Methods
void Clear(): Clear event queue
csEventQueue(size_t iLength = DEF_EVENT_QUEUE_LENGTH): Initializes the event queue
csEvent* Get(): Get next event from queue or NULL
bool IsEmpty(): Query if queue is empty
void Put(csEvent *Event): Put a event into queue
virtual ~csEventQueue(): Destroy an event queue object

Private Fields
volatile csEvent** EventQueue: The queue itself
volatile size_t evqHead: Queue head and tail pointers
volatile size_t Length: The maximum queue length
volatile int SpinLock: Protection against multiple threads

Private Methods
inline void Lock(): Lock the queue for modifications: NESTED CALLS TO LOCK/UNLOCK NOT ALLOWED!
void Resize(size_t iLength): Enlarge the queue size.
inline void Unlock(): Unlock the queue

Inherited from csBase:

Documentation

This class represents a windowing system event queue.
Each application have its own event queue. Any component can manipulate event queue via its app field, since event queue can be reached through csApp::EventQueue() method (for example, to clear event queue (caution!) call app->EventQueue()->Clear()).
The implemented event queue is limited thread-safe. There are some primitive spinlocks acquired/released in critical sections.

volatile csEvent** EventQueue