|AIO_SUSPEND(3)||Linux Programmer's Manual||AIO_SUSPEND(3)|
NAMEaio_suspend - wait for asynchronous I/O operation or timeout
int aio_suspend(const struct aiocb * const aiocb_list ,
int nitems , const struct timespec * timeout );
Link with -lrt.
DESCRIPTIONThe aio_suspend() function suspends the calling thread until one of the following occurs:
- 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(3)).
RETURN VALUEIf this function returns after completion of one of the I/O requests specified in aiocb_list, 0 is returned. Otherwise, -1 is returned, and errno is set to indicate the error.
- 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.
VERSIONSThe aio_suspend() function is available since glibc 2.1.
CONFORMING TOPOSIX.1-2001, POSIX.1-2008.
NOTESOne can achieve polling by using a non-NULL timeout that specifies a zero time interval.
SEE ALSOaio_cancel(3), aio_error(3), aio_fsync(3), aio_read(3), aio_return(3), aio_write(3), lio_listio(3), aio(7), time(7)
COLOPHONThis page is part of release 3.53 of the Linux man-pages project. A description of the project, and information about reporting bugs, can be found at http://www.kernel.org/doc/man-pages/.