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[Qemu-devel] [PULL 18/73] blkdebug: Simplify and improve filename genera
From: |
Kevin Wolf |
Subject: |
[Qemu-devel] [PULL 18/73] blkdebug: Simplify and improve filename generation |
Date: |
Wed, 10 Dec 2014 11:33:44 +0100 |
From: Max Reitz <address@hidden>
Instead of actually recreating the options from scratch, just reuse the
options given for creating the BDS, which are the configuration file
name and additional options. In case there are no additional options we
can thus create a plain filename.
This obviously results in a different output for qemu-iotest 099 which
exactly tests this filename generation. Fix it up as well.
Signed-off-by: Max Reitz <address@hidden>
Reviewed-by: Eric Blake <address@hidden>
Message-id: address@hidden
Signed-off-by: Stefan Hajnoczi <address@hidden>
Signed-off-by: Kevin Wolf <address@hidden>
---
block/blkdebug.c | 99 +++++++++++++---------------------------------
tests/qemu-iotests/099.out | 4 +-
2 files changed, 30 insertions(+), 73 deletions(-)
diff --git a/block/blkdebug.c b/block/blkdebug.c
index 862d93b..9ce35cd 100644
--- a/block/blkdebug.c
+++ b/block/blkdebug.c
@@ -721,93 +721,50 @@ static int64_t blkdebug_getlength(BlockDriverState *bs)
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;
+ const QDictEntry *e;
+ bool force_json = false;
+
+ for (e = qdict_first(bs->options); e; e = qdict_next(bs->options, e)) {
+ if (strcmp(qdict_entry_key(e), "config") &&
+ strcmp(qdict_entry_key(e), "x-image") &&
+ strcmp(qdict_entry_key(e), "image") &&
+ strncmp(qdict_entry_key(e), "image.", strlen("image.")))
+ {
+ force_json = true;
+ break;
+ }
+ }
- if (!bs->file->full_open_options) {
+ if (force_json && !bs->file->full_open_options) {
/* The config file cannot be recreated, so creating a plain filename
* is impossible */
return;
}
+ if (!force_json && bs->file->exact_filename[0]) {
+ snprintf(bs->exact_filename, sizeof(bs->exact_filename),
+ "blkdebug:%s:%s",
+ qdict_get_try_str(bs->options, "config") ?: "",
+ bs->file->exact_filename);
+ }
+
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));
- }
+ for (e = qdict_first(bs->options); e; e = qdict_next(bs->options, e)) {
+ if (strcmp(qdict_entry_key(e), "x-image") &&
+ strcmp(qdict_entry_key(e), "image") &&
+ strncmp(qdict_entry_key(e), "image.", strlen("image.")))
+ {
+ qobject_incref(qdict_entry_value(e));
+ qdict_put_obj(opts, qdict_entry_key(e), qdict_entry_value(e));
}
}
- 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;
}
diff --git a/tests/qemu-iotests/099.out b/tests/qemu-iotests/099.out
index 55be4d4..50cc527 100644
--- a/tests/qemu-iotests/099.out
+++ b/tests/qemu-iotests/099.out
@@ -12,9 +12,9 @@ blkverify:TEST_DIR/t.IMGFMT.compare:TEST_DIR/t.IMGFMT
=== Testing JSON filename for blkdebug ===
-json:{"driver": "IMGFMT", "file": {"inject-error": [{"immediately": false,
"once": false, "state": 0, "sector": -1, "event": "l1_update", "errno": 5}],
"image": {"driver": "file", "filename": "TEST_DIR/t.IMGFMT"}, "driver":
"blkdebug"}}
+json:{"driver": "IMGFMT", "file": {"image": {"driver": "file", "filename":
"TEST_DIR/t.IMGFMT"}, "driver": "blkdebug", "inject-error.0.event":
"l1_update"}}
=== Testing indirectly enforced JSON filename ===
-json:{"driver": "raw", "file": {"test": {"driver": "IMGFMT", "file":
{"inject-error": [{"immediately": false, "once": false, "state": 0, "sector":
-1, "event": "l1_update", "errno": 5}], "image": {"driver": "file", "filename":
"TEST_DIR/t.IMGFMT"}, "driver": "blkdebug"}}, "driver": "blkverify", "raw":
{"driver": "file", "filename": "TEST_DIR/t.IMGFMT.compare"}}}
+json:{"driver": "raw", "file": {"test": {"driver": "IMGFMT", "file": {"image":
{"driver": "file", "filename": "TEST_DIR/t.IMGFMT"}, "driver": "blkdebug",
"inject-error.0.event": "l1_update"}}, "driver": "blkverify", "raw": {"driver":
"file", "filename": "TEST_DIR/t.IMGFMT.compare"}}}
*** done
--
1.8.3.1
- [Qemu-devel] [PULL 70/73] vmdk: Clean up descriptor file reading, (continued)
- [Qemu-devel] [PULL 70/73] vmdk: Clean up descriptor file reading, Kevin Wolf, 2014/12/10
- [Qemu-devel] [PULL 67/73] block: Use g_new0() for a bit of extra type checking, Kevin Wolf, 2014/12/10
- [Qemu-devel] [PULL 73/73] vmdk: Set errp on failures in vmdk_open_vmdk4, Kevin Wolf, 2014/12/10
- [Qemu-devel] [PULL 72/73] vmdk: Remove unnecessary initialization, Kevin Wolf, 2014/12/10
- [Qemu-devel] [PULL 64/73] qemu-iotests: Skip 099 for VMDK subformats with desc file, Kevin Wolf, 2014/12/10
- [Qemu-devel] [PULL 43/73] qcow2.py: Add required padding for header extensions, Kevin Wolf, 2014/12/10
- [Qemu-devel] [PULL 05/73] qjson: Drop trailing space for pretty formatting, Kevin Wolf, 2014/12/10
- [Qemu-devel] [PULL 59/73] iotests: Add test for unsupported image creation, Kevin Wolf, 2014/12/10
- [Qemu-devel] [PULL 12/73] blockdev: acquire AioContext in change-backing-file, Kevin Wolf, 2014/12/10
- [Qemu-devel] [PULL 04/73] qmp: Add optional switch "query-nodes" in query-blockstats, Kevin Wolf, 2014/12/10
- [Qemu-devel] [PULL 18/73] blkdebug: Simplify and improve filename generation,
Kevin Wolf <=
- [Qemu-devel] [PULL 33/73] block: Factor bdrv_probe_all() out of find_image_format(), Kevin Wolf, 2014/12/10
- [Qemu-devel] [PULL 08/73] iotests: Use -qmp-pretty in 067, Kevin Wolf, 2014/12/10
- Re: [Qemu-devel] [PULL 00/73] Merging block-next for 2.3, Peter Maydell, 2014/12/11