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block/nbd: add cmdline and qapi parameter reconnect-delay

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Reconnect will be implemented in the following commit, so for now,
in semantics below, disconnect itself is a "serious error".

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20190618114328.55249-5-vsementsov@virtuozzo.com>
[eblake: slipped from 4.1 to 4.2]
Signed-off-by: Eric Blake <eblake@redhat.com>
This commit is contained in:
Vladimir Sementsov-Ogievskiy 2019-06-18 14:43:23 +03:00 • committed by Eric Blake
parent a34b1e5e06
commit b172ae2e0e
2 changed files with 25 additions and 2 deletions
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11
qapi/block-core.json
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@ -3860,13 +3860,22 @@
# traditional "base:allocation" block status (see
# NBD_OPT_LIST_META_CONTEXT in the NBD protocol) (since 3.0)
#
# @reconnect-delay: On an unexpected disconnect, the nbd client tries to
# connect again until succeeding or encountering a serious
# error. During the first @reconnect-delay seconds, all
# requests are paused and will be rerun on a successful
# reconnect. After that time, any delayed requests and all
# future requests before a successful reconnect will
# immediately fail. Default 0 (Since 4.2)
#
# Since: 2.9
##
{ 'struct': 'BlockdevOptionsNbd',
'data': { 'server': 'SocketAddress',
'*export': 'str',
'*tls-creds': 'str',
'*x-dirty-bitmap': 'str' } }
'*x-dirty-bitmap': 'str',
'*reconnect-delay': 'uint32' } }
##
# @BlockdevOptionsRaw: