Add API to allow the user to cancel the current dumping.
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 9a1e696..63193ec 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 = "device:B,snapshot-file:s?,format:s?",
.params = "device [new-image-file] [format]",
diff --git a/hmp.c b/hmp.c
index a27f6c5..d427e49 100644
--- a/hmp.c
+++ b/hmp.c
@@ -866,3 +866,8 @@ 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 8b51b1d..d40ba69 100644
--- a/qapi-schema.json
+++ b/qapi-schema.json
@@ -1645,3 +1645,16 @@
# 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 c877987..1b36262 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
