diff options
Diffstat (limited to 'block.c')
| -rw-r--r-- | block.c | 104 |
1 files changed, 56 insertions, 48 deletions
@@ -44,7 +44,7 @@ #include <windows.h> #endif -static void bdrv_dev_change_media_cb(BlockDriverState *bs); +static void bdrv_dev_change_media_cb(BlockDriverState *bs, bool load); static BlockDriverAIOCB *bdrv_aio_readv_em(BlockDriverState *bs, int64_t sector_num, QEMUIOVector *qiov, int nb_sectors, BlockDriverCompletionFunc *cb, void *opaque); @@ -480,7 +480,6 @@ static int bdrv_open_common(BlockDriverState *bs, const char *filename, bs->encrypted = 0; bs->valid_key = 0; bs->open_flags = flags; - /* buffer_alignment defaulted to 512, drivers can change this value */ bs->buffer_alignment = 512; pstrcpy(bs->filename, sizeof(bs->filename), filename); @@ -689,7 +688,7 @@ int bdrv_open(BlockDriverState *bs, const char *filename, int flags, } if (!bdrv_key_required(bs)) { - bdrv_dev_change_media_cb(bs); + bdrv_dev_change_media_cb(bs, true); } return 0; @@ -725,7 +724,7 @@ void bdrv_close(BlockDriverState *bs) bdrv_close(bs->file); } - bdrv_dev_change_media_cb(bs); + bdrv_dev_change_media_cb(bs, false); } } @@ -789,6 +788,7 @@ void bdrv_detach_dev(BlockDriverState *bs, void *dev) bs->dev = NULL; bs->dev_ops = NULL; bs->dev_opaque = NULL; + bs->buffer_alignment = 512; } /* TODO change to return DeviceState * when all users are qdevified */ @@ -802,13 +802,29 @@ void bdrv_set_dev_ops(BlockDriverState *bs, const BlockDevOps *ops, { bs->dev_ops = ops; bs->dev_opaque = opaque; + if (bdrv_dev_has_removable_media(bs) && bs == bs_snapshots) { + bs_snapshots = NULL; + } } -static void bdrv_dev_change_media_cb(BlockDriverState *bs) +static void bdrv_dev_change_media_cb(BlockDriverState *bs, bool load) { if (bs->dev_ops && bs->dev_ops->change_media_cb) { - bs->dev_ops->change_media_cb(bs->dev_opaque); + bs->dev_ops->change_media_cb(bs->dev_opaque, load); + } +} + +bool bdrv_dev_has_removable_media(BlockDriverState *bs) +{ + return !bs->dev || (bs->dev_ops && bs->dev_ops->change_media_cb); +} + +bool bdrv_dev_is_tray_open(BlockDriverState *bs) +{ + if (bs->dev_ops && bs->dev_ops->is_tray_open) { + return bs->dev_ops->is_tray_open(bs->dev_opaque); } + return false; } static void bdrv_dev_resize_cb(BlockDriverState *bs) @@ -818,6 +834,14 @@ static void bdrv_dev_resize_cb(BlockDriverState *bs) } } +bool bdrv_dev_is_medium_locked(BlockDriverState *bs) +{ + if (bs->dev_ops && bs->dev_ops->is_medium_locked) { + return bs->dev_ops->is_medium_locked(bs->dev_opaque); + } + return false; +} + /* * Run consistency checks on an image * @@ -1321,7 +1345,7 @@ int64_t bdrv_getlength(BlockDriverState *bs) if (!drv) return -ENOMEDIUM; - if (bs->growable || bs->removable) { + if (bs->growable || bdrv_dev_has_removable_media(bs)) { if (drv->bdrv_getlength) { return drv->bdrv_getlength(bs); } @@ -1598,19 +1622,6 @@ BlockErrorAction bdrv_get_on_error(BlockDriverState *bs, int is_read) return is_read ? bs->on_read_error : bs->on_write_error; } -void bdrv_set_removable(BlockDriverState *bs, int removable) -{ - bs->removable = removable; - if (removable && bs == bs_snapshots) { - bs_snapshots = NULL; - } -} - -int bdrv_is_removable(BlockDriverState *bs) -{ - return bs->removable; -} - int bdrv_is_read_only(BlockDriverState *bs) { return bs->read_only; @@ -1663,7 +1674,7 @@ int bdrv_set_key(BlockDriverState *bs, const char *key) } else if (!bs->valid_key) { bs->valid_key = 1; /* call the change callback now, we skipped it on open */ - bdrv_dev_change_media_cb(bs); + bdrv_dev_change_media_cb(bs, true); } return ret; } @@ -1850,8 +1861,9 @@ static void bdrv_print_dict(QObject *obj, void *opaque) if (qdict_get_bool(bs_dict, "removable")) { monitor_printf(mon, " locked=%d", qdict_get_bool(bs_dict, "locked")); + monitor_printf(mon, " tray-open=%d", + qdict_get_bool(bs_dict, "tray-open")); } - if (qdict_haskey(bs_dict, "inserted")) { QDict *qdict = qobject_to_qdict(qdict_get(bs_dict, "inserted")); @@ -1886,15 +1898,21 @@ void bdrv_info(Monitor *mon, QObject **ret_data) QTAILQ_FOREACH(bs, &bdrv_states, list) { QObject *bs_obj; + QDict *bs_dict; bs_obj = qobject_from_jsonf("{ 'device': %s, 'type': 'unknown', " "'removable': %i, 'locked': %i }", - bs->device_name, bs->removable, - bs->locked); - + bs->device_name, + bdrv_dev_has_removable_media(bs), + bdrv_dev_is_medium_locked(bs)); + bs_dict = qobject_to_qdict(bs_obj); + + if (bdrv_dev_has_removable_media(bs)) { + qdict_put(bs_dict, "tray-open", + qbool_from_int(bdrv_dev_is_tray_open(bs))); + } if (bs->drv) { QObject *obj; - QDict *bs_dict = qobject_to_qdict(bs_obj); obj = qobject_from_jsonf("{ 'file': %s, 'ro': %i, 'drv': %s, " "'encrypted': %i }", @@ -3026,13 +3044,12 @@ static int coroutine_fn bdrv_co_flush_em(BlockDriverState *bs) int bdrv_is_inserted(BlockDriverState *bs) { BlockDriver *drv = bs->drv; - int ret; + if (!drv) return 0; if (!drv->bdrv_is_inserted) - return !bs->tray_open; - ret = drv->bdrv_is_inserted(bs); - return ret; + return 1; + return drv->bdrv_is_inserted(bs); } /** @@ -3052,39 +3069,27 @@ int bdrv_media_changed(BlockDriverState *bs) /** * If eject_flag is TRUE, eject the media. Otherwise, close the tray */ -int bdrv_eject(BlockDriverState *bs, int eject_flag) +void bdrv_eject(BlockDriverState *bs, int eject_flag) { BlockDriver *drv = bs->drv; - if (eject_flag && bs->locked) { - return -EBUSY; - } - if (drv && drv->bdrv_eject) { drv->bdrv_eject(bs, eject_flag); } - bs->tray_open = eject_flag; - return 0; -} - -int bdrv_is_locked(BlockDriverState *bs) -{ - return bs->locked; } /** * Lock or unlock the media (if it is locked, the user won't be able * to eject it manually). */ -void bdrv_set_locked(BlockDriverState *bs, int locked) +void bdrv_lock_medium(BlockDriverState *bs, bool locked) { BlockDriver *drv = bs->drv; - trace_bdrv_set_locked(bs, locked); + trace_bdrv_lock_medium(bs, locked); - bs->locked = locked; - if (drv && drv->bdrv_set_locked) { - drv->bdrv_set_locked(bs, locked); + if (drv && drv->bdrv_lock_medium) { + drv->bdrv_lock_medium(bs, locked); } } @@ -3110,7 +3115,10 @@ BlockDriverAIOCB *bdrv_aio_ioctl(BlockDriverState *bs, return NULL; } - +void bdrv_set_buffer_alignment(BlockDriverState *bs, int align) +{ + bs->buffer_alignment = align; +} void *qemu_blockalign(BlockDriverState *bs, size_t size) { |