Line data    Source code

       1           0 : #define SHAM_LINK_(n) FD_EXPAND_THEN_CONCAT3(SHAM_LINK_NAME,_,n)
       2             : 
       3             : struct SHAM_LINK_NAME {
       4             :   fd_frag_meta_t * mcache;
       5             :   fd_wksp_t *      wksp;
       6             :   ulong            depth;
       7             :   ulong            seq_expect;
       8             : };
       9             : 
      10             : typedef struct SHAM_LINK_NAME SHAM_LINK_(t);
      11             : 
      12           0 : static inline ulong SHAM_LINK_(align)(void)     { return alignof(SHAM_LINK_(t)); }
      13           0 : static inline ulong SHAM_LINK_(footprint)(void) { return sizeof(SHAM_LINK_(t)); }
      14             : 
      15             : static inline SHAM_LINK_(t) *
      16           0 : SHAM_LINK_(new)( void * mem, const char * wksp_name ) {
      17           0 :   SHAM_LINK_(t) * self = (SHAM_LINK_(t) *)mem;
      18           0 :   memset( self, 0, sizeof(SHAM_LINK_(t)) );
      19           0 :   FD_LOG_NOTICE(( "attaching to workspace \"%s\"", wksp_name ));
      20           0 :   self->wksp = fd_wksp_attach( wksp_name );
      21           0 :   if( FD_UNLIKELY( !self->wksp ) )
      22           0 :     FD_LOG_ERR(( "unable to attach to \"%s\"\n\tprobably does not exist or bad permissions", wksp_name ));
      23           0 :   ulong offset = fd_ulong_align_up( fd_wksp_private_data_off( self->wksp->part_max ), fd_topo_workspace_align() );
      24           0 :   self->mcache = fd_mcache_join( (void *)((ulong)self->wksp + offset) );
      25           0 :   if( self->mcache == NULL ) {
      26           0 :     FD_LOG_ERR(( "failed to join a mcache" ));
      27           0 :   }
      28           0 :   return self;
      29           0 : }
      30             : 
      31             : static inline void
      32           0 : SHAM_LINK_(start)( SHAM_LINK_(t) * self ) {
      33           0 :   fd_frag_meta_t * mcache = self->mcache;
      34           0 :   self->depth  = fd_mcache_depth( mcache );
      35           0 :   self->seq_expect = fd_mcache_seq0( mcache );
      36           0 : }
      37             : 
      38             : void SHAM_LINK_(during_frag)( SHAM_LINK_CONTEXT * ctx, SHAM_LINK_STATE * state, void const * msg, int sz );
      39             : 
      40             : void SHAM_LINK_(after_frag)( SHAM_LINK_CONTEXT * ctx, SHAM_LINK_STATE * state );
      41             : 
      42             : static inline void
      43           0 : SHAM_LINK_(poll)( SHAM_LINK_(t) * self, SHAM_LINK_CONTEXT * ctx, SHAM_LINK_STATE * state ) {
      44           0 :   while (1) {
      45           0 :     fd_frag_meta_t const * mline = self->mcache + fd_mcache_line_idx( self->seq_expect, self->depth );
      46             : 
      47           0 :     ulong seq_found = fd_frag_meta_seq_query( mline );
      48           0 :     long  diff      = fd_seq_diff( seq_found, self->seq_expect );
      49           0 :     if( FD_UNLIKELY( diff ) ) { /* caught up or overrun, optimize for expected sequence number ready */
      50           0 :       if( FD_UNLIKELY( diff>0L ) ) {
      51           0 :         FD_LOG_NOTICE(( "overrun: seq=%lu seq_found=%lu diff=%ld", self->seq_expect, seq_found, diff ));
      52           0 :         self->seq_expect = seq_found;
      53           0 :       } else {
      54             :         /* caught up */
      55           0 :         break;
      56           0 :       }
      57           0 :       continue;
      58           0 :     }
      59             : 
      60           0 :     ulong chunk = mline->chunk;
      61             :     /* TODO: sanity check chunk,sz */
      62           0 :     SHAM_LINK_(during_frag)( ctx, state, fd_chunk_to_laddr( self->wksp, chunk ), mline->sz );
      63             : 
      64           0 :     seq_found = fd_frag_meta_seq_query( mline );
      65           0 :     diff      = fd_seq_diff( seq_found, self->seq_expect );
      66           0 :     if( FD_UNLIKELY( diff ) ) { /* overrun, optimize for expected sequence number ready */
      67           0 :       FD_LOG_NOTICE(( "overrun: seq=%lu seq_found=%lu diff=%ld", self->seq_expect, seq_found, diff ));
      68           0 :       self->seq_expect = seq_found;
      69           0 :       continue;
      70           0 :     }
      71             : 
      72           0 :     SHAM_LINK_(after_frag)( ctx, state );
      73             : 
      74           0 :     self->seq_expect++;
      75           0 :   }
      76           0 : }
      77             : 
      78             : #undef SHAM_LINK_CONTEXT
      79             : #undef SHAM_LINK_STATE
      80             : #undef SHAM_LINK_NAME
      81             : #undef SHAM_LINK_