Line data    Source code

       1             : #ifndef HEADER_fd_src_discof_restore_utils_fd_http_resolver_h
       2             : #define HEADER_fd_src_discof_restore_utils_fd_http_resolver_h
       3             : 
       4             : #include "fd_sspeer_selector.h"
       5             : 
       6             : /* Resolves snapshot slot information for http snapshot peers.  These
       7             :    peers might not publish SnapshotHashes messages through gossip,
       8             :    so we manually resolve their snapshot slot information through an
       9             :    http request. */
      10             : struct fd_http_resolver_private;
      11             : typedef struct fd_http_resolver_private fd_http_resolver_t;
      12             : 
      13           0 : #define FD_HTTP_RESOLVER_MAGIC (0xF17EDA2CE551170) /* FIREDANCE HTTP RESOLVER V0 */
      14             : 
      15             : typedef void
      16             : (* fd_http_resolver_on_resolve_fn_t)( void *        _ctx,
      17             :                                       fd_ip4_port_t addr,
      18             :                                       ulong         full_slot,
      19             :                                       ulong         incr_slot,
      20             :                                       uchar         full_hash[ FD_HASH_FOOTPRINT ],
      21             :                                       uchar         incr_hash[ FD_HASH_FOOTPRINT ] );
      22             : 
      23             : FD_PROTOTYPES_BEGIN
      24             : 
      25             : FD_FN_CONST ulong
      26             : fd_http_resolver_align( void );
      27             : 
      28             : FD_FN_CONST ulong
      29             : fd_http_resolver_footprint( ulong peers_cnt );
      30             : 
      31             : void *
      32             : fd_http_resolver_new( void *                           shmem,
      33             :                       ulong                            peers_cnt,
      34             :                       int                              incremental_snapshot_fetch,
      35             :                       fd_http_resolver_on_resolve_fn_t on_resolve_cb,
      36             :                       void *                           cb_arg );
      37             : 
      38             : /* Add a peer to the resolver.  Peers are not de-duplicated and must
      39             :    be unique. */
      40             : void
      41             : fd_http_resolver_add( fd_http_resolver_t * resolver,
      42             :                       fd_ip4_port_t        addr,
      43             :                       char const *         hostname,
      44             :                       int                  is_https );
      45             : 
      46             : fd_http_resolver_t *
      47             : fd_http_resolver_join( void * shresolve );
      48             : 
      49             : /* Advance the resolver forward in time until "now".  Called
      50             :    periodically to continuously resolve snapshot slot information from
      51             :    peers.  Takes a handle to the selector object to invalidate peers
      52             :    from both the resolver and selector. */
      53             : void
      54             : fd_http_resolver_advance( fd_http_resolver_t *   resolver,
      55             :                           long                   now,
      56             :                           fd_sspeer_selector_t * selector );
      57             : 
      58             : FD_PROTOTYPES_END
      59             : 
      60             : #endif /* HEADER_fd_src_discof_restore_utils_fd_http_resolver_h */