diff options
Diffstat (limited to 'src/core/aio.h')
| -rw-r--r-- | src/core/aio.h | 20 |
1 files changed, 19 insertions, 1 deletions
diff --git a/src/core/aio.h b/src/core/aio.h index a0f4934f..d23ddf5b 100644 --- a/src/core/aio.h +++ b/src/core/aio.h @@ -123,7 +123,14 @@ extern void nni_aio_finish_msg(nni_aio *, nni_msg *); // with the indicated result (NNG_ECLOSED or NNG_ECANCELED is recommended.) extern void nni_aio_abort(nni_aio *, int rv); -extern int nni_aio_start(nni_aio *, nni_aio_cancelfn, void *); +// nni_aio_begin is called by a provider to indicate it is starting the +// operation, and to check that the aio has not already been marked for +// teardown. It returns 0 on success, or NNG_ECANCELED if the aio is being +// torn down. (In that case, no operation should be aborted without any +// call to any other functions on this AIO, most especially not the +// nng_aio_finish family of functions.) +extern int nni_aio_begin(nni_aio *); + extern void *nni_aio_get_prov_data(nni_aio *); extern void nni_aio_set_prov_data(nni_aio *, void *); extern void *nni_aio_get_prov_extra(nni_aio *, unsigned); @@ -143,6 +150,17 @@ extern void nni_aio_get_iov(nni_aio *, unsigned *, nni_iov **); extern void nni_aio_normalize_timeout(nni_aio *, nng_duration); extern void nni_aio_bump_count(nni_aio *, size_t); +// nni_aio_schedule indicates that the AIO has begun, and is scheduled for +// asychronous completion. This also starts the expiration timer. Note that +// prior to this, the aio is uncancellable. +extern void nni_aio_schedule(nni_aio *, nni_aio_cancelfn, void *); + +// nni_aio_schedule_verify is like nni_aio_schedule, except that if the +// operation has been run with a zero time (NNG_FLAG_NONBLOCK), then it +// returns NNG_ETIMEDOUT. This is done to permit bypassing scheduling +// if the operation could not be immediately completed. +extern int nni_aio_schedule_verify(nni_aio *, nni_aio_cancelfn, void *); + extern void nni_sleep_aio(nni_duration, nni_aio *); extern int nni_aio_sys_init(void); |