Functions
enum sp_return	sp_new_event_set (struct sp_event_set **result_ptr)
	Allocate storage for a set of events. More...

enum sp_return	sp_add_port_events (struct sp_event_set event_set, const struct sp_port port, enum sp_event mask)
	Add events to a struct sp_event_set for a given port. More...

enum sp_return	sp_wait (struct sp_event_set *event_set, unsigned int timeout)
	Wait for any of a set of events to occur. More...

void	sp_free_event_set (struct sp_event_set *event_set)
	Free a structure allocated by sp_new_event_set(). More...

Detailed Description

Function Documentation

enum sp_return sp_add_port_events	(	struct sp_event_set *	event_set,
		const struct sp_port *	port,
		enum sp_event	mask
	)

Add events to a struct sp_event_set for a given port.

The port must first be opened by calling sp_open() using the same port structure.

After the port is closed or the port structure freed, the results may no longer be valid.

Parameters

event_set	Event set to update.
port	Pointer to port structure.
mask	Bitmask of events to be waited for.

void sp_free_event_set ( struct sp_event_set * event_set )

Free a structure allocated by sp_new_event_set().

enum sp_return sp_new_event_set ( struct sp_event_set ** result_ptr )

Allocate storage for a set of events.

The user should allocate a variable of type struct sp_event_set *, then pass a pointer to this variable to receive the result.

The result should be freed after use by calling sp_free_event_set().

Wait for any of a set of events to occur.

Parameters

event_set	Event set to wait on.
timeout	Timeout in milliseconds, or zero to wait indefinitely.