On Wed, 14 Mar 2012 10:13:15 +0800 Wen Congyang <we...@cn.fujitsu.com> wrote:
> Add API to allow the user to query dumping status. It can only work after > async dumping is supported. NACK, we shouldn't add it then. > > Signed-off-by: Wen Congyang <we...@cn.fujitsu.com> > --- > dump.c | 32 ++++++++++++++++++++++++++++++++ > hmp-commands.hx | 2 ++ > hmp.c | 17 +++++++++++++++++ > hmp.h | 1 + > monitor.c | 7 +++++++ > qapi-schema.json | 27 +++++++++++++++++++++++++++ > qmp-commands.hx | 50 ++++++++++++++++++++++++++++++++++++++++++++++++++ > 7 files changed, 136 insertions(+), 0 deletions(-) > > diff --git a/dump.c b/dump.c > index dab0c84..7f9ea09 100644 > --- a/dump.c > +++ b/dump.c > @@ -724,3 +724,35 @@ void qmp_dump_cancel(Error **errp) > s->state = DUMP_STATE_CANCELLED; > dump_cleanup(s); > } > + > +DumpInfo *qmp_query_dump(Error **errp) > +{ > + DumpInfo *info = g_malloc0(sizeof(*info)); > + DumpState *s = dump_get_current(); > + > + switch (s->state) { > + case DUMP_STATE_SETUP: > + /* no dumping has happened ever */ > + break; > + case DUMP_STATE_ACTIVE: > + info->has_status = true; > + info->status = g_strdup("active"); > + break; > + case DUMP_STATE_COMPLETED: > + info->has_status = true; > + info->status = g_strdup("completed"); > + break; > + case DUMP_STATE_ERROR: > + info->has_status = true; > + info->status = g_strdup("failed"); > + info->has_error = true; > + info->error = g_strdup(s->error); > + break; > + case DUMP_STATE_CANCELLED: > + info->has_status = true; > + info->status = g_strdup("cancelled"); > + break; > + } > + > + return info; > +} > diff --git a/hmp-commands.hx b/hmp-commands.hx > index 313f876..abd412e 100644 > --- a/hmp-commands.hx > +++ b/hmp-commands.hx > @@ -1438,6 +1438,8 @@ show device tree > show qdev device model list > @item info roms > show roms > +@item info dump > +show dumping status > @end table > ETEXI > > diff --git a/hmp.c b/hmp.c > index 31e85d3..d0aa94b 100644 > --- a/hmp.c > +++ b/hmp.c > @@ -875,3 +875,20 @@ void hmp_dump_cancel(Monitor *mon, const QDict *qdict) > { > qmp_dump_cancel(NULL); > } > + > +void hmp_info_dump(Monitor *mon) > +{ > + DumpInfo *info; > + > + info = qmp_query_dump(NULL); > + > + if (info->has_status) { > + monitor_printf(mon, "Dumping status: %s\n", info->status); > + } > + > + if (info->has_error) { > + monitor_printf(mon, "Dumping failed reason: %s\n", info->error); > + } > + > + qapi_free_DumpInfo(info); > +} > diff --git a/hmp.h b/hmp.h > index 75c6c1d..3d105a9 100644 > --- a/hmp.h > +++ b/hmp.h > @@ -61,5 +61,6 @@ 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); > +void hmp_info_dump(Monitor *mon); > > #endif > diff --git a/monitor.c b/monitor.c > index fe54b7c..8348637 100644 > --- a/monitor.c > +++ b/monitor.c > @@ -2603,6 +2603,13 @@ static mon_cmd_t info_cmds[] = { > .mhandler.info = do_trace_print_events, > }, > { > + .name = "dump", > + .args_type = "", > + .params = "", > + .help = "show dumping status", > + .mhandler.info = hmp_info_dump, > + }, > + { > .name = NULL, > }, > }; > diff --git a/qapi-schema.json b/qapi-schema.json > index 1fdfee8..9728f5f 100644 > --- a/qapi-schema.json > +++ b/qapi-schema.json > @@ -1690,3 +1690,30 @@ > # Since: 1.1 > ## > { 'command': 'dump_cancel' } > + > +## > +# @DumpInfo > +# > +# Information about current dumping process. > +# > +# @status: #optional string describing the current dumping status. > +# As of 1,1 this can be 'active', 'completed', 'failed' or > +# 'cancelled'. If this field is not returned, no dumping process > +# has been initiated > +# @error: #optional string describing the current dumping failed reason. > +# > +# Since: 1.1 > +## > +{ 'type': 'DumpInfo', > + 'data': { '*status': 'str', '*error': 'str' } } > + > +## > +# @query-dump > +# > +# Returns information about current dumping process. > +# > +# Returns: @DumpInfo > +# > +# Since: 1.1 > +## > +{ 'command': 'query-dump', 'returns': 'DumpInfo' } > diff --git a/qmp-commands.hx b/qmp-commands.hx > index cbe5b91..036e111 100644 > --- a/qmp-commands.hx > +++ b/qmp-commands.hx > @@ -616,6 +616,8 @@ Example: > Notes: > > (1) All boolean arguments default to false > +(2) The 'info dump' command should be used to check dumping's progress > + and final result (this information is provided by the 'status' member) > > EQMP > #endif > @@ -2106,6 +2108,54 @@ EQMP > }, > > SQMP > +query-dump > +------------- > + > +Dumping status. > + > +Return a json-object. > + > +The main json-object contains the following: > + > +- "status": dumping status (json-string) > + - Possible values: "active", "completed", "failed", "cancelled" > + > +Examples: > + > +1. Before the first dumping > + > +-> { "execute": "query-dump" } > +<- { "return": {} } > + > +2. Dumping is done and has succeeded > + > +-> { "execute": "query-dump" } > +<- { "return": { "status": "completed" } } > + > +3. Dumping is done and has failed > + > +-> { "execute": "query-dump" } > +<- { "return": { "status": "failed", > + "error": "dump: failed to save memory." } } > + > +4. Dumping is being performed: > + > +-> { "execute": "query-dump" } > +<- { > + "return":{ > + "status":"active", > + } > + } > + > +EQMP > + > + { > + .name = "query-dump", > + .args_type = "", > + .mhandler.cmd_new = qmp_marshal_input_query_dump, > + }, > + > +SQMP > query-balloon > ------------- >