Add API to allow the user to cancel the current dumping. It can only work after async dumping is supported.
Signed-off-by: Wen Congyang <we...@cn.fujitsu.com> --- dump.c | 12 ++++++++++++ hmp-commands.hx | 14 ++++++++++++++ hmp.c | 5 +++++ hmp.h | 1 + qapi-schema.json | 13 +++++++++++++ qmp-commands.hx | 21 +++++++++++++++++++++ 6 files changed, 66 insertions(+), 0 deletions(-) diff --git a/dump.c b/dump.c index 42e1681..dab0c84 100644 --- a/dump.c +++ b/dump.c @@ -712,3 +712,15 @@ void qmp_dump(bool paging, const char *file, Error **errp) error_set(errp, QERR_IO_ERROR); } } + +void qmp_dump_cancel(Error **errp) +{ + DumpState *s = dump_get_current(); + + if (s->state != DUMP_STATE_ACTIVE) { + return; + } + + s->state = DUMP_STATE_CANCELLED; + dump_cleanup(s); +} diff --git a/hmp-commands.hx b/hmp-commands.hx index d4cf2e5..313f876 100644 --- a/hmp-commands.hx +++ b/hmp-commands.hx @@ -902,6 +902,20 @@ ETEXI #endif { + .name = "dump_cancel", + .args_type = "", + .params = "", + .help = "cancel the current VM dumping", + .mhandler.cmd = hmp_dump_cancel, + }, + +STEXI +@item dump_cancel +@findex dump_cancel +Cancel the current VM dumping. +ETEXI + + { .name = "snapshot_blkdev", .args_type = "reuse:-n,device:B,snapshot-file:s?,format:s?", .params = "[-n] device [new-image-file] [format]", diff --git a/hmp.c b/hmp.c index e13b793..31e85d3 100644 --- a/hmp.c +++ b/hmp.c @@ -870,3 +870,8 @@ void hmp_dump(Monitor *mon, const QDict *qdict) qmp_dump(!!paging, file, &errp); hmp_handle_error(mon, &errp); } + +void hmp_dump_cancel(Monitor *mon, const QDict *qdict) +{ + qmp_dump_cancel(NULL); +} diff --git a/hmp.h b/hmp.h index b055e50..75c6c1d 100644 --- a/hmp.h +++ b/hmp.h @@ -60,5 +60,6 @@ void hmp_block_stream(Monitor *mon, const QDict *qdict); void hmp_block_job_set_speed(Monitor *mon, const QDict *qdict); void hmp_block_job_cancel(Monitor *mon, const QDict *qdict); void hmp_dump(Monitor *mon, const QDict *qdict); +void hmp_dump_cancel(Monitor *mon, const QDict *qdict); #endif diff --git a/qapi-schema.json b/qapi-schema.json index 81b8c7c..1fdfee8 100644 --- a/qapi-schema.json +++ b/qapi-schema.json @@ -1677,3 +1677,16 @@ # Since: 1.1 ## { 'command': 'dump', 'data': { 'paging': 'bool', 'file': 'str' } } + +## +# @dump_cancel +# +# Cancel the current executing dumping process. +# +# Returns: nothing on success +# +# Notes: This command succeeds even if there is no dumping process running. +# +# Since: 1.1 +## +{ 'command': 'dump_cancel' } diff --git a/qmp-commands.hx b/qmp-commands.hx index 9e39bd9..cbe5b91 100644 --- a/qmp-commands.hx +++ b/qmp-commands.hx @@ -621,6 +621,27 @@ EQMP #endif { + .name = "dump_cancel", + .args_type = "", + .mhandler.cmd_new = qmp_marshal_input_dump_cancel, + }, + +SQMP +dump_cancel + + +Cancel the current dumping. + +Arguments: None. + +Example: + +-> { "execute": "dump_cancel" } +<- { "return": {} } + +EQMP + + { .name = "netdev_add", .args_type = "netdev:O", .params = "[user|tap|socket],id=str[,prop=value][,...]", -- 1.7.1