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AIO_SUSPEND(2) BSD System Calls Manual AIO_SUSPEND(2) NAME aio_suspend -- suspend until asynchronous I/O operations or timeout com-plete complete plete (REALTIME) LIBRARY Standard C Library (libc, -lc) SYNOPSIS #include <aio.h> int aio_suspend(const struct aiocb *const list[], int nent, const struct timespec *timeout); DESCRIPTION The aio_suspend() system call suspends the calling process until at least one of the specified asynchronous I/O requests have completed, a signal is delivered, or the timeout has passed. The list argument is an array of nent pointers to asynchronous I/O requests. Array members containing NULL will be silently ignored. If timeout is a non-nil pointer, it specifies a maximum interval to sus-pend. suspend. pend. If timeout is a nil pointer, the suspend blocks indefinitely. To effect a poll, the timeout should point to a zero-value timespec struc-ture. structure. ture. RETURN VALUES If one or more of the specified asynchronous I/O requests have completed, aio_suspend() returns 0. Otherwise, it returns -1 and sets errno to indicate the error, as enumerated below. ERRORS The aio_suspend() system call will fail if: [EAGAIN] The timeout expired before any of the listed I/O requests completed. [EINTR] The suspend was interrupted by a signal. [EINVAL] The list argument contains more than AIO_LISTIO_MAX asynchronous I/O requests, or at least one of the requests is not valid. SEE ALSO aio_cancel(2), aio_error(2), aio_return(2), aio_write(2), aio(4) STANDARDS The aio_suspend() system call is expected to conform to the IEEE Std 1003.1 (``POSIX.1'') standard. HISTORY The aio_suspend() system call first appeared in FreeBSD 3.0. AUTHORS This manual page was written by Wes Peters <wes@softweyr.com>. BSD June 2, 1999 BSD |