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git.proxmox.com Git - ceph.git/blob - ceph/src/os/fs/aio.cc
1 // -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
2 // vim: ts=8 sw=2 smarttab
6 #if defined(HAVE_LIBAIO)
9 int aio_queue_t::submit(aio_t
&aio
, int *retries
)
11 // 2^16 * 125us = ~8 seconds, so max sleep is ~16 seconds
14 iocb
*piocb
= &aio
.iocb
;
17 r
= io_submit(ctx
, 1, &piocb
);
19 if (r
== -EAGAIN
&& attempts
-- > 0) {
32 int aio_queue_t::submit_batch(aio_iter begin
, aio_iter end
,
33 uint16_t aios_size
, void *priv
,
36 // 2^16 * 125us = ~8 seconds, so max sleep is ~16 seconds
41 struct iocb
*piocb
[aios_size
];
45 *(piocb
+pos
) = &cur
->iocb
;
50 r
= io_submit(ctx
, pos
, piocb
);
52 if (r
== -EAGAIN
&& attempts
-- > 0) {
64 int aio_queue_t::get_next_completed(int timeout_ms
, aio_t
**paio
, int max
)
69 (timeout_ms
% 1000) * 1000 * 1000
74 r
= io_getevents(ctx
, 1, max
, event
, &t
);
75 } while (r
== -EINTR
);
77 for (int i
=0; i
<r
; ++i
) {
78 paio
[i
] = (aio_t
*)event
[i
].obj
;
79 paio
[i
]->rval
= event
[i
].res
;