IO_GETEVENTSSection: Linux Programmer's Manual (2)
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NAMEio_getevents - read asynchronous I/O events from the completion queue
#include <linux/time.h> #include <libaio.h> int io_getevents(aio_context_t ctx_id, long min_nr, long nr, struct io_event *events, struct timespec *timeout);
io_getevents() attempts to read at least min_nr events and up to nr events from the completion queue of the AIO context specified by ctx_id. timeout specifies the amount of time to wait for events, where a NULL timeout waits until at least min_nr events have been seen. Note that timeout is relative and will be updated if not NULL and the operation blocks.
- ctx_id is invalid. min_nr is out of range or nr is out of range.
- Either events or timeout is an invalid pointer.
- io_getevents() is not implemented on this architecture.