qemu-nbd: print error messages from the daemon through a pipe

[qemu.git] / block.h

diff --git a/block.h b/block.h
index 38cd748b606ad61f7605bf5269ffcb3e3bf966a7..051a25d8d63d141cc7c2ce5e3092dc1c6c7c7e3a 100644 (file)
--- a/block.h
+++ b/block.h
@@ -38,6 +38,15 @@ typedef struct BlockDevOps {
      * Device models with removable media must implement this callback.
      */
     void (*change_media_cb)(void *opaque, bool load);
+    /*
+     * Runs when an eject request is issued from the monitor, the tray
+     * is closed, and the medium is locked.
+     * Device models that do not implement is_medium_locked will not need
+     * this callback.  Device models that can lock the medium or tray might
+     * want to implement the callback and unlock the tray when "force" is
+     * true, even if they do not support eject requests.
+     */
+    void (*eject_request_cb)(void *opaque, bool force);
     /*
      * Is the virtual tray open?
      * Device models implement this only when the device has a tray.
@@ -111,6 +120,7 @@ void bdrv_detach_dev(BlockDriverState *bs, void *dev);
 void *bdrv_get_attached_dev(BlockDriverState *bs);
 void bdrv_set_dev_ops(BlockDriverState *bs, const BlockDevOps *ops,
                       void *opaque);
+void bdrv_dev_eject_request(BlockDriverState *bs, bool force);
 bool bdrv_dev_has_removable_media(BlockDriverState *bs);
 bool bdrv_dev_is_tray_open(BlockDriverState *bs);
 bool bdrv_dev_is_medium_locked(BlockDriverState *bs);