From 8779441b1b0e03bd3e5213dee447ab0c955e374b Mon Sep 17 00:00:00 2001 From: Max Reitz Date: Tue, 11 Nov 2014 10:23:44 +0100 Subject: [PATCH] blkdebug: Simplify and improve filename generation 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 Reviewed-by: Eric Blake Message-id: 1415697825-26678-2-git-send-email-mreitz@redhat.com Signed-off-by: Stefan Hajnoczi Signed-off-by: Kevin Wolf --- 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 862d93b59b..9ce35cd035 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; - if (!bs->file->full_open_options) { + 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 (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 55be4d4c56..50cc527fb2 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