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             :                                       fd_ssinfo_t const * ssinfo );
      19             : 
      20             : FD_PROTOTYPES_BEGIN
      21             : 
      22             : FD_FN_CONST ulong
      23             : fd_http_resolver_align( void );
      24             : 
      25             : FD_FN_CONST ulong
      26             : fd_http_resolver_footprint( ulong peers_cnt );
      27             : 
      28             : void *
      29             : fd_http_resolver_new( void *                           shmem,
      30             :                       ulong                            peers_cnt,
      31             :                       int                              incremental_snapshot_fetch,
      32             :                       fd_http_resolver_on_resolve_fn_t on_resolve_cb,
      33             :                       void *                           cb_arg );
      34             : 
      35             : /* Add a peer to the resolver.  Peers are not de-duplicated and must
      36             :    be unique. */
      37             : void
      38             : fd_http_resolver_add( fd_http_resolver_t * resolver,
      39             :                       fd_ip4_port_t        addr );
      40             : 
      41             : fd_http_resolver_t *
      42             : fd_http_resolver_join( void * shresolve );
      43             : 
      44             : /* Advance the resolver forward in time until "now".  Called
      45             :    periodically to continuously resolve snapshot slot information from
      46             :    peers.  Takes a handle to the selector object to invalidate peers
      47             :    from both the resolver and selector. */
      48             : void
      49             : fd_http_resolver_advance( fd_http_resolver_t *   resolver,
      50             :                           long                   now,
      51             :                           fd_sspeer_selector_t * selector );
      52             : 
      53             : FD_PROTOTYPES_END
      54             : 
      55             : #endif /* HEADER_fd_src_discof_restore_utils_fd_http_resolver_h */