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qdev-monitor: Convert qbus_find() to Error 

As usual, the conversion breaks printing explanatory messages after
the error: actual printing of the error gets delayed, so the
explanations precede rather than follow it.

Pity.  Disable them for now.  See also commit 7216ae3.

While there, eliminate QERR_BUS_NOT_FOUND, and clean up unusual
spelling in the error message.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
This commit is contained in:
Markus Armbruster 2015-03-11 19:16:04 +01:00
parent ed238ba2a0
commit d282842999
2 changed files with 20 additions and 15 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
include/qapi/qmp/qerror.h
View File

@ -43,9 +43,6 @@ void qerror_report_err(Error *err);
#define QERR_BUS_NO_HOTPLUG \
ERROR_CLASS_GENERIC_ERROR, "Bus '%s' does not support hotplugging"
#define QERR_BUS_NOT_FOUND \
ERROR_CLASS_GENERIC_ERROR, "Bus '%s' not found"
#define QERR_DEVICE_HAS_NO_MEDIUM \
ERROR_CLASS_GENERIC_ERROR, "Device '%s' has no medium"

32
qdev-monitor.c
View File

@ -288,12 +288,13 @@ static Object *qdev_get_peripheral_anon(void)
return dev;
}
#if 0 /* conversion from qerror_report() to error_set() broke their use */
static void qbus_list_bus(DeviceState *dev)
{
BusState *child;
const char *sep = " ";
error_printf("child busses at \"%s\":",
error_printf("child buses at \"%s\":",
dev->id ? dev->id : object_get_typename(OBJECT(dev)));
QLIST_FOREACH(child, &dev->child_bus, sibling) {
error_printf("%s\"%s\"", sep, child->name);
@ -317,6 +318,7 @@ static void qbus_list_dev(BusState *bus)
}
error_printf("\n");
}
#endif
static BusState *qbus_find_bus(DeviceState *dev, char *elem)
{
@ -415,7 +417,7 @@ static BusState *qbus_find_recursive(BusState *bus, const char *name,
return pick;
}
static BusState *qbus_find(const char *path)
static BusState *qbus_find(const char *path, Error **errp)
{
DeviceState *dev;
BusState *bus;
@ -433,7 +435,7 @@ static BusState *qbus_find(const char *path)
}
bus = qbus_find_recursive(sysbus_get_default(), elem, NULL);
if (!bus) {
qerror_report(QERR_BUS_NOT_FOUND, elem);
error_setg(errp, "Bus '%s' not found", elem);
return NULL;
}
pos = len;
@ -456,10 +458,12 @@ static BusState *qbus_find(const char *path)
pos += len;
dev = qbus_find_dev(bus, elem);
if (!dev) {
qerror_report(QERR_DEVICE_NOT_FOUND, elem);
error_set(errp, QERR_DEVICE_NOT_FOUND, elem);
#if 0 /* conversion from qerror_report() to error_set() broke this: */
if (!monitor_cur_is_qmp()) {
qbus_list_dev(bus);
}
#endif
return NULL;
}
@ -475,14 +479,15 @@ static BusState *qbus_find(const char *path)
break;
}
if (dev->num_child_bus) {
qerror_report(ERROR_CLASS_GENERIC_ERROR,
"Device '%s' has multiple child busses", elem);
error_setg(errp, "Device '%s' has multiple child buses",
elem);
#if 0 /* conversion from qerror_report() to error_set() broke this: */
if (!monitor_cur_is_qmp()) {
qbus_list_bus(dev);
}
#endif
} else {
qerror_report(ERROR_CLASS_GENERIC_ERROR,
"Device '%s' has no child bus", elem);
error_setg(errp, "Device '%s' has no child bus", elem);
}
return NULL;
}
@ -495,17 +500,18 @@ static BusState *qbus_find(const char *path)
pos += len;
bus = qbus_find_bus(dev, elem);
if (!bus) {
qerror_report(QERR_BUS_NOT_FOUND, elem);
error_setg(errp, "Bus '%s' not found", elem);
#if 0 /* conversion from qerror_report() to error_set() broke this: */
if (!monitor_cur_is_qmp()) {
qbus_list_bus(dev);
}
#endif
return NULL;
}
}
if (qbus_is_full(bus)) {
qerror_report(ERROR_CLASS_GENERIC_ERROR, "Bus '%s' is full",
path);
error_setg(errp, "Bus '%s' is full", path);
return NULL;
}
return bus;
@ -536,8 +542,10 @@ DeviceState *qdev_device_add(QemuOpts *opts)
/* find bus */
path = qemu_opt_get(opts, "bus");
if (path != NULL) {
bus = qbus_find(path);
bus = qbus_find(path, &err);
if (!bus) {
qerror_report_err(err);
error_free(err);
return NULL;
}
if (!object_dynamic_cast(OBJECT(bus), dc->bus_type)) {