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[Qemu-devel] [PULL 17/29] blkdebug: Implement bdrv_refresh_filename()
From: |
Kevin Wolf |
Subject: |
[Qemu-devel] [PULL 17/29] blkdebug: Implement bdrv_refresh_filename() |
Date: |
Fri, 22 Aug 2014 16:51:41 +0200 |
From: Max Reitz <address@hidden>
Because blkdebug cannot simply create a configuration file, simply
refuse to reconstruct a plain filename and only generate an options
QDict from the rules instead.
Signed-off-by: Max Reitz <address@hidden>
Signed-off-by: Kevin Wolf <address@hidden>
---
block/blkdebug.c | 97 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 97 insertions(+)
diff --git a/block/blkdebug.c b/block/blkdebug.c
index 1586ed9..95b7244 100644
--- a/block/blkdebug.c
+++ b/block/blkdebug.c
@@ -26,6 +26,10 @@
#include "qemu/config-file.h"
#include "block/block_int.h"
#include "qemu/module.h"
+#include "qapi/qmp/qbool.h"
+#include "qapi/qmp/qdict.h"
+#include "qapi/qmp/qint.h"
+#include "qapi/qmp/qstring.h"
typedef struct BDRVBlkdebugState {
int state;
@@ -706,6 +710,98 @@ static int64_t blkdebug_getlength(BlockDriverState *bs)
return bdrv_getlength(bs->file);
}
+static void blkdebug_refresh_filename(BlockDriverState *bs)
+{
+ BDRVBlkdebugState *s = bs->opaque;
+ struct BlkdebugRule *rule;
+ QDict *opts;
+ QList *inject_error_list = NULL, *set_state_list = NULL;
+ QList *suspend_list = NULL;
+ int event;
+
+ if (!bs->file->full_open_options) {
+ /* The config file cannot be recreated, so creating a plain filename
+ * is impossible */
+ return;
+ }
+
+ opts = qdict_new();
+ qdict_put_obj(opts, "driver", QOBJECT(qstring_from_str("blkdebug")));
+
+ QINCREF(bs->file->full_open_options);
+ qdict_put_obj(opts, "image", QOBJECT(bs->file->full_open_options));
+
+ for (event = 0; event < BLKDBG_EVENT_MAX; event++) {
+ QLIST_FOREACH(rule, &s->rules[event], next) {
+ if (rule->action == ACTION_INJECT_ERROR) {
+ QDict *inject_error = qdict_new();
+
+ qdict_put_obj(inject_error, "event", QOBJECT(qstring_from_str(
+ BlkdebugEvent_lookup[rule->event])));
+ qdict_put_obj(inject_error, "state",
+ QOBJECT(qint_from_int(rule->state)));
+ qdict_put_obj(inject_error, "errno", QOBJECT(qint_from_int(
+ rule->options.inject.error)));
+ qdict_put_obj(inject_error, "sector", QOBJECT(qint_from_int(
+ rule->options.inject.sector)));
+ qdict_put_obj(inject_error, "once", QOBJECT(qbool_from_int(
+ rule->options.inject.once)));
+ qdict_put_obj(inject_error, "immediately",
+ QOBJECT(qbool_from_int(
+ rule->options.inject.immediately)));
+
+ if (!inject_error_list) {
+ inject_error_list = qlist_new();
+ }
+
+ qlist_append_obj(inject_error_list, QOBJECT(inject_error));
+ } else if (rule->action == ACTION_SET_STATE) {
+ QDict *set_state = qdict_new();
+
+ qdict_put_obj(set_state, "event", QOBJECT(qstring_from_str(
+ BlkdebugEvent_lookup[rule->event])));
+ qdict_put_obj(set_state, "state",
+ QOBJECT(qint_from_int(rule->state)));
+ qdict_put_obj(set_state, "new_state", QOBJECT(qint_from_int(
+ rule->options.set_state.new_state)));
+
+ if (!set_state_list) {
+ set_state_list = qlist_new();
+ }
+
+ qlist_append_obj(set_state_list, QOBJECT(set_state));
+ } else if (rule->action == ACTION_SUSPEND) {
+ QDict *suspend = qdict_new();
+
+ qdict_put_obj(suspend, "event", QOBJECT(qstring_from_str(
+ BlkdebugEvent_lookup[rule->event])));
+ qdict_put_obj(suspend, "state",
+ QOBJECT(qint_from_int(rule->state)));
+ qdict_put_obj(suspend, "tag", QOBJECT(qstring_from_str(
+ rule->options.suspend.tag)));
+
+ if (!suspend_list) {
+ suspend_list = qlist_new();
+ }
+
+ qlist_append_obj(suspend_list, QOBJECT(suspend));
+ }
+ }
+ }
+
+ if (inject_error_list) {
+ qdict_put_obj(opts, "inject-error", QOBJECT(inject_error_list));
+ }
+ if (set_state_list) {
+ qdict_put_obj(opts, "set-state", QOBJECT(set_state_list));
+ }
+ if (suspend_list) {
+ qdict_put_obj(opts, "suspend", QOBJECT(suspend_list));
+ }
+
+ bs->full_open_options = opts;
+}
+
static BlockDriver bdrv_blkdebug = {
.format_name = "blkdebug",
.protocol_name = "blkdebug",
@@ -715,6 +811,7 @@ static BlockDriver bdrv_blkdebug = {
.bdrv_file_open = blkdebug_open,
.bdrv_close = blkdebug_close,
.bdrv_getlength = blkdebug_getlength,
+ .bdrv_refresh_filename = blkdebug_refresh_filename,
.bdrv_aio_readv = blkdebug_aio_readv,
.bdrv_aio_writev = blkdebug_aio_writev,
--
1.8.3.1
- [Qemu-devel] [PULL 06/29] runner: Kill a program under test by time-out, (continued)
- [Qemu-devel] [PULL 06/29] runner: Kill a program under test by time-out, Kevin Wolf, 2014/08/22
- [Qemu-devel] [PULL 08/29] qcow2: Use g_try_new0() for cache array, Kevin Wolf, 2014/08/22
- [Qemu-devel] [PULL 07/29] qcow2: Constant cache size in bytes, Kevin Wolf, 2014/08/22
- [Qemu-devel] [PULL 10/29] iotests: Add test for qcow2's cache options, Kevin Wolf, 2014/08/22
- [Qemu-devel] [PULL 09/29] qcow2: Add runtime options for cache sizes, Kevin Wolf, 2014/08/22
- [Qemu-devel] [PULL 11/29] test-coroutine: test cost introduced by coroutine, Kevin Wolf, 2014/08/22
- [Qemu-devel] [PULL 12/29] qemu-iotests: Fix 028 reference output for qed, Kevin Wolf, 2014/08/22
- [Qemu-devel] [PULL 14/29] virtio-blk: allow block_resize with dataplane, Kevin Wolf, 2014/08/22
- [Qemu-devel] [PULL 13/29] block: acquire AioContext in qmp_block_resize(), Kevin Wolf, 2014/08/22
- [Qemu-devel] [PULL 15/29] virtio-blk: fix reference a pointer which might be freed, Kevin Wolf, 2014/08/22
- [Qemu-devel] [PULL 17/29] blkdebug: Implement bdrv_refresh_filename(),
Kevin Wolf <=
- [Qemu-devel] [PULL 16/29] block: Add bdrv_refresh_filename(), Kevin Wolf, 2014/08/22
- [Qemu-devel] [PULL 18/29] blkverify: Implement bdrv_refresh_filename(), Kevin Wolf, 2014/08/22
- [Qemu-devel] [PULL 19/29] nbd: Implement bdrv_refresh_filename(), Kevin Wolf, 2014/08/22
- [Qemu-devel] [PULL 21/29] iotests: Add test for image filename construction, Kevin Wolf, 2014/08/22
- [Qemu-devel] [PULL 22/29] block/vvfat.c: remove debugging code to reinit stderr if NULL, Kevin Wolf, 2014/08/22
- [Qemu-devel] [PULL 20/29] quorum: Implement bdrv_refresh_filename(), Kevin Wolf, 2014/08/22
- [Qemu-devel] [PULL 24/29] raw-posix: fix O_DIRECT short reads, Kevin Wolf, 2014/08/22
- [Qemu-devel] [PULL 23/29] block/iscsi: fix memory corruption on iscsi resize, Kevin Wolf, 2014/08/22
- [Qemu-devel] [PULL 25/29] qemu-iotests: add test case 101 for short file I/O, Kevin Wolf, 2014/08/22
- [Qemu-devel] [PULL 26/29] blkdebug: Delete BH in bdrv_aio_cancel, Kevin Wolf, 2014/08/22