urid.h

#define LV2_URID__batchMap   LV2_URID_PREFIX "batchMap"    ///< http://lv2plug.in/ns/ext/urid#batchMap
#define LV2_URID__batchUnmap LV2_URID_PREFIX "batchUnmap"  ///< http://lv2plug.in/ns/ext/urid#batchUnmap

#define LV2_URID_BATCH_MAP_URI   LV2_URID__batchMap
#define LV2_URID_BATCH_UNMAP_URI LV2_URID__batchUnmap

#ifdef __cplusplus
extern "C" {
#endif

/**
   Opaque pointer to host data for LV2_URID_BatchMap.
*/
typedef void* LV2_URID_BatchMap_Handle;

/**
   Opaque pointer to host data for LV2_URID_BatchUnmap.
*/
typedef void* LV2_URID_BatchUnmap_Handle;

/**
   URID Batch Map Feature (LV2_URID__batchMap)
*/
typedef struct _LV2_URID_BatchMap {
    /**
       Opaque pointer to host data.

       This MUST be passed to map() whenever it is called.
       Otherwise, it must not be interpreted in any way.
    */
    LV2_URID_BatchMap_Handle handle;

    /**
       Perform mapping of multiple URIs

       @param handle Must be the 'handle' member of this struct
       @param count The number of URIDs to map
       @param urids The pointer to the beginning of array to store URIDs
       @param uris The pointer to the beginning of array containing URI strings
    */
    LV2_URID (*map)(
            LV2_URID_BatchMap_Handle    handle,
            size_t                      count,
            URID                       *urids,
            const char                **uris
        );
} LV2_URID_BatchMap;

/**
   URID Batch Unmap Feature (LV2_URID__batchUnmap)
*/
typedef struct _LV2_URID_BatchUnmap {
    /**
       Opaque pointer to host data.

       This MUST be passed to unmap() whenever it is called.
       Otherwise, it must not be interpreted in any way.
    */
    LV2_URID_BatchUnmap_Handle handle;

    /**
       Perform unmapping of multiple URIDs

       @param handle Must be the callback_data member of this struct.
       @param urid The ID to be mapped back to the URI string.
    */
    const char* (*unmap)(
            LV2_URID_BatchUnmap_Handle  handle,
            size_t                      count,
            const URID                 *urids
         );
} LV2_URID_BatchUnmap;

#ifdef __cplusplus
}  /* extern "C" */
#endif