Waiting

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:

[in,out]	event_set	Event set to update. Must not be NULL.
[in]	port	Pointer to a port structure. Must not be NULL.
[in]	mask	Bitmask of events to be waited for.

Returns:

SP_OK upon success, a negative error code otherwise.

Since:

0.1.0

Free a structure allocated by sp_new_event_set().

Parameters:

[in]

event_set

Event set to free. Must not be NULL.

Since:

0.1.0

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().

Parameters:

[out]

result_ptr

If any error is returned, the variable pointed to by result_ptr will be set to NULL. Otherwise, it will be set to point to the event set. Must not be NULL.

Returns:

SP_OK upon success, a negative error code otherwise.

Since:

0.1.0

Wait for any of a set of events to occur.

Parameters:

[in]	event_set	Event set to wait on. Must not be NULL.
[in]	timeout_ms	Timeout in milliseconds, or zero to wait indefinitely.

Returns:

SP_OK upon success, a negative error code otherwise.

Since:

0.1.0