|AIO_SUSPEND(3)||Linux Programmer's Manual||AIO_SUSPEND(3)|
int aio_suspend(const struct aiocb *const aiocb_list, int nitems, const struct timespec *restrict timeout);
Link with -lrt.
- One or more of the asynchronous I/O requests in the list aiocb_list has completed.
- A signal is delivered.
- timeout is not NULL and the specified time interval has passed. (For details of the timespec structure, see nanosleep(2).)
The nitems argument specifies the number of items in aiocb_list. Each item in the list pointed to by aiocb_list must be either NULL (and then is ignored), or a pointer to a control block on which I/O was initiated using aio_read(3), aio_write(3), or lio_listio(3). (See aio(7) for a description of the aiocb structure.)
If CLOCK_MONOTONIC is supported, this clock is used to measure the timeout interval (see clock_gettime(2)).
- The call timed out before any of the indicated operations had completed.
- The call was ended by signal (possibly the completion signal of one of the operations we were waiting for); see signal(7).
- aio_suspend() is not implemented.
|aio_suspend ()||Thread safety||MT-Safe|
POSIX doesn't specify the parameters to be restrict; that is specific to glibc.
If one or more of the asynchronous I/O operations specified in aiocb_list has already completed at the time of the call to aio_suspend(), then the call returns immediately.
To determine which I/O operations have completed after a successful return from aio_suspend(), use aio_error(3) to scan the list of aiocb structures pointed to by aiocb_list.