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qemu: Extract more information about qemu drives

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Extract whether a given drive has a tray and whether there is no image
inserted.

Negative logic for the image insertion is chosen so that the flag is set
only if we are certain of the fact.

(cherry picked from commit f1690dc3d7934bf70f4fbc84d55bf210276c6f27)
This commit is contained in:
Peter Krempa 2016-05-19 14:57:41 +02:00 committed by Cole Robinson
parent ddc05f5c41
commit 7200212536
3 changed files with 32 additions and 5 deletions
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2
src/qemu/qemu_domain.h
View File

@ -241,7 +241,9 @@ struct _qemuDomainDiskPrivate {
struct qemuDomainDiskInfo {
bool removable;
bool locked;
bool tray;
bool tray_open;
bool empty;
int io_status;
};

12
src/qemu/qemu_monitor_json.c
View File

@ -1797,11 +1797,13 @@ int qemuMonitorJSONGetBlockInfo(qemuMonitorPtr mon,
goto cleanup;
}
/* Don't check for success here, because 'tray_open' is presented iff
* medium is ejected.
*/
ignore_value(virJSONValueObjectGetBoolean(dev, "tray_open",
&info->tray_open));
/* 'tray_open' is present only if the device has a tray */
if (virJSONValueObjectGetBoolean(dev, "tray_open", &info->tray_open) == 0)
info->tray = true;
/* presence of 'inserted' notifies that a medium is in the device */
if (!virJSONValueObjectGetObject(dev, "inserted"))
info->empty = true;
/* Missing io-status indicates no error */
if ((status = virJSONValueObjectGetString(dev, "io-status"))) {

23
tests/qemumonitorjsontest.c
View File

@ -114,6 +114,14 @@ const char *queryBlockReply =
" },"
" \"tray_open\": false,"
" \"type\": \"unknown\""
" },"
" {"
" \"io-status\": \"ok\","
" \"device\": \"drive-ide0-1-1\","
" \"locked\": false,"
" \"removable\": true,"
" \"tray_open\": false,"
" \"type\": \"unknown\""
" }"
" ],"
" \"id\": \"libvirt-10\""
@ -1404,12 +1412,27 @@ testQemuMonitorJSONqemuMonitorJSONGetBlockInfo(const void *data)
info->locked = true;
info->removable = true;
info->tray = true;
if (virHashAddEntry(expectedBlockDevices, "ide0-1-0", info) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
"Unable to create expectedBlockDevices hash table");
goto cleanup;
}
if (VIR_ALLOC(info) < 0)
goto cleanup;
info->removable = true;
info->tray = true;
info->empty = true;
if (virHashAddEntry(expectedBlockDevices, "ide0-1-1", info) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
"Unable to create expectedBlockDevices hash table");
goto cleanup;
}
if (qemuMonitorTestAddItem(test, "query-block", queryBlockReply) < 0)
goto cleanup;