LCOV - code coverage report
Current view: top level - disco/topo - fd_topo.h (source / functions) Hit Total Coverage
Test: cov.lcov Lines: 36 111 32.4 %
Date: 2025-11-24 04:44:38 Functions: 13 1820 0.7 %

          Line data    Source code
       1             : #ifndef HEADER_fd_src_disco_topo_fd_topo_h
       2             : #define HEADER_fd_src_disco_topo_fd_topo_h
       3             : 
       4             : #include "../stem/fd_stem.h"
       5             : #include "../../tango/fd_tango.h"
       6             : #include "../../waltz/xdp/fd_xdp1.h"
       7             : #include "../../ballet/base58/fd_base58.h"
       8             : #include "../../util/net/fd_net_headers.h"
       9             : 
      10             : /* Maximum number of workspaces that may be present in a topology. */
      11             : #define FD_TOPO_MAX_WKSPS         (256UL)
      12             : /* Maximum number of links that may be present in a topology. */
      13             : #define FD_TOPO_MAX_LINKS         (256UL)
      14             : /* Maximum number of tiles that may be present in a topology. */
      15           0 : #define FD_TOPO_MAX_TILES         (256UL)
      16             : /* Maximum number of objects that may be present in a topology. */
      17             : #define FD_TOPO_MAX_OBJS          (4096UL)
      18             : /* Maximum number of links that may go into any one tile in the
      19             :    topology. */
      20             : #define FD_TOPO_MAX_TILE_IN_LINKS  ( 128UL)
      21             : /* Maximum number of links that a tile may write to. */
      22             : #define FD_TOPO_MAX_TILE_OUT_LINKS ( 32UL)
      23             : /* Maximum number of objects that a tile can use. */
      24             : #define FD_TOPO_MAX_TILE_OBJS      ( 256UL)
      25             : 
      26             : /* Maximum number of additional ip addresses */
      27             : #define FD_NET_MAX_SRC_ADDR 4
      28             : 
      29             : /* Maximum number of additional destinations for leader shreds and for retransmitted shreds */
      30             : #define FD_TOPO_ADTL_DESTS_MAX ( 32UL)
      31             : 
      32             : 
      33             : /* A workspace is a Firedancer specific memory management structure that
      34             :    sits on top of 1 or more memory mapped gigantic or huge pages mounted
      35             :    to the hugetlbfs. */
      36             : typedef struct {
      37             :   ulong id;           /* The ID of this workspace.  Indexed from [0, wksp_cnt).  When placed in a topology, the ID must be the index of the workspace in the workspaces list. */
      38             :   char  name[ 13UL ]; /* The name of this workspace, like "pack".  There can be at most one of each workspace name in a topology. */
      39             : 
      40             :   ulong numa_idx;     /* The index of the NUMA node on the system that this workspace should be allocated from. */
      41             : 
      42             :   ulong min_part_max; /* Artificially raise part_max */
      43             :   ulong min_loose_sz; /* Artificially raise loose footprint */
      44             : 
      45             :   /* Computed fields.  These are not supplied as configuration but calculated as needed. */
      46             :   struct {
      47             :     ulong page_sz;  /* The size of the pages that this workspace is backed by.  One of FD_PAGE_SIZE_*. */
      48             :     ulong page_cnt; /* The number of pages that must be mapped to this workspace to store all the data needed by consumers. */
      49             :     ulong part_max; /* The maximum number of partitions in the underlying workspace.  There can only be this many allocations made at any one time. */
      50             : 
      51             :     fd_wksp_t * wksp;            /* The workspace memory in the local process. */
      52             :     ulong       known_footprint; /* Total size in bytes of all data in Firedancer that will be stored in this workspace at startup. */
      53             :     ulong       total_footprint; /* Total size in bytes of all data in Firedancer that could be stored in this workspace, includes known data and loose data. */
      54             :   };
      55             : } fd_topo_wksp_t;
      56             : 
      57             : /* A link is an mcache in a workspace that has one producer and one or
      58             :    more consumers. A link may optionally also have a dcache, that holds
      59             :    fragments referred to by the mcache entries.
      60             : 
      61             :    A link belongs to exactly one workspace.  A link has exactly one
      62             :    producer, and 1 or more consumers.  Each consumer is either reliable
      63             :    or not reliable.  A link has a depth and a MTU, which correspond to
      64             :    the depth and MTU of the mcache and dcache respectively.  A MTU of
      65             :    zero means no dcache is needed, as there is no data. */
      66             : typedef struct {
      67             :   ulong id;           /* The ID of this link.  Indexed from [0, link_cnt).  When placed in a topology, the ID must be the index of the link in the links list. */
      68             :   char  name[ 13UL ]; /* The name of this link, like "pack_bank". There can be multiple of each link name in a topology. */
      69             :   ulong kind_id;      /* The ID of this link within its name.  If there are N links of a particular name, they have IDs [0, N).  The pair (name, kind_id) uniquely identifies a link, as does "id" on its own. */
      70             : 
      71             :   ulong depth;    /* The depth of the mcache representing the link. */
      72             :   ulong mtu;      /* The MTU of data fragments in the mcache.  A value of 0 means there is no dcache. */
      73             :   ulong burst;    /* The max amount of MTU sized data fragments that might be bursted to the dcache. */
      74             : 
      75             :   ulong mcache_obj_id;
      76             :   ulong dcache_obj_id;
      77             : 
      78             :   /* Computed fields.  These are not supplied as configuration but calculated as needed. */
      79             :   struct {
      80             :     fd_frag_meta_t * mcache; /* The mcache of this link. */
      81             :     void *           dcache; /* The dcache of this link, if it has one. */
      82             :   };
      83             : 
      84             :   uint permit_no_consumers : 1;  /* Permit a topology where this link has no consumers */
      85             :   uint permit_no_producers : 1;  /* Permit a topology where this link has no producers */
      86             : } fd_topo_link_t;
      87             : 
      88             : /* Be careful: ip and host are in different byte order */
      89             : typedef struct {
      90             :   uint   ip;   /* in network byte order */
      91             :   ushort port; /* in host byte order */
      92             : } fd_topo_ip_port_t;
      93             : 
      94             : struct fd_topo_net_tile {
      95             :   ulong umem_dcache_obj_id;  /* dcache for XDP UMEM frames */
      96             :   uint  bind_address;
      97             : 
      98             :   ushort shred_listen_port;
      99             :   ushort quic_transaction_listen_port;
     100             :   ushort legacy_transaction_listen_port;
     101             :   ushort gossip_listen_port;
     102             :   ushort repair_intake_listen_port;
     103             :   ushort repair_serve_listen_port;
     104             :   ushort send_src_port;
     105             : };
     106             : typedef struct fd_topo_net_tile fd_topo_net_tile_t;
     107             : 
     108             : /* A tile is a unique process that is spawned by Firedancer to represent
     109             :    one thread of execution.  Firedancer sandboxes all tiles to their own
     110             :    process for security reasons.
     111             : 
     112             :    A tile belongs to exactly one workspace.  A tile is a consumer of 0
     113             :    or more links, it's inputs.  A tile is a producer of 0 or more output
     114             :    links.
     115             : 
     116             :    All input links will be automatically polled by the tile
     117             :    infrastructure, and output links will automatically source and manage
     118             :    credits from consumers. */
     119             : struct fd_topo_tile {
     120             :   ulong id;                     /* The ID of this tile.  Indexed from [0, tile_cnt).  When placed in a topology, the ID must be the index of the tile in the tiles list. */
     121             :   char  name[ 7UL ];            /* The name of this tile.  There can be multiple of each tile name in a topology. */
     122             :   char  metrics_name[ 10UL ];   /* The name of this tile for looking up metrics.  This is used so tiles can share a name but report different metrics, for Frankendancer and Firedancer. */
     123             :   ulong kind_id;                /* The ID of this tile within its name.  If there are n tile of a particular name, they have IDs [0, N).  The pair (name, kind_id) uniquely identifies a tile, as does "id" on its own. */
     124             :   int   is_agave;               /* If the tile needs to run in the Agave (Anza) address space or not. */
     125             :   int   allow_shutdown;         /* If the tile is allowed to shutdown gracefully.  If false, when the tile exits it will tear down the entire application. */
     126             : 
     127             :   ulong cpu_idx;                /* The CPU index to pin the tile on.  A value of ULONG_MAX or more indicates the tile should be floating and not pinned to a core. */
     128             : 
     129             :   ulong in_cnt;                 /* The number of links that this tile reads from. */
     130             :   ulong in_link_id[ FD_TOPO_MAX_TILE_IN_LINKS ];       /* The link_id of each link that this tile reads from, indexed in [0, in_cnt). */
     131             :   int   in_link_reliable[ FD_TOPO_MAX_TILE_IN_LINKS ]; /* If each link that this tile reads from is a reliable or unreliable consumer, indexed in [0, in_cnt). */
     132             :   int   in_link_poll[ FD_TOPO_MAX_TILE_IN_LINKS ];     /* If each link that this tile reads from should be polled by the tile infrastructure, indexed in [0, in_cnt).
     133             :                                                           If the link is not polled, the tile will not receive frags for it and the tile writer is responsible for
     134             :                                                           reading from the link.  The link must be marked as unreliable as it is not flow controlled. */
     135             : 
     136             :   ulong out_cnt;                                   /* The number of links that this tile writes to. */
     137             :   ulong out_link_id[ FD_TOPO_MAX_TILE_OUT_LINKS ]; /* The link_id of each link that this tile writes to, indexed in [0, link_cnt). */
     138             : 
     139             :   ulong tile_obj_id;
     140             :   ulong metrics_obj_id;
     141             :   ulong keyswitch_obj_id;
     142             :   ulong in_link_fseq_obj_id[ FD_TOPO_MAX_TILE_IN_LINKS ];
     143             : 
     144             :   ulong uses_obj_cnt;
     145             :   ulong uses_obj_id[ FD_TOPO_MAX_TILE_OBJS ];
     146             :   int   uses_obj_mode[ FD_TOPO_MAX_TILE_OBJS ];
     147             : 
     148             :   /* Computed fields.  These are not supplied as configuration but calculated as needed. */
     149             :   struct {
     150             :     ulong *    metrics; /* The shared memory for metrics that this tile should write.  Consumer by monitoring and metrics writing tiles. */
     151             : 
     152             :     /* The fseq of each link that this tile reads from.  Multiple fseqs
     153             :        may point to the link, if there are multiple consumers.  An fseq
     154             :        can be uniquely identified via (link_id, tile_id), or (link_kind,
     155             :        link_kind_id, tile_kind, tile_kind_id) */
     156             :     ulong *    in_link_fseq[ FD_TOPO_MAX_TILE_IN_LINKS ];
     157             :   };
     158             : 
     159             :   /* Configuration fields.  These are required to be known by the topology so it can determine the
     160             :      total size of Firedancer in memory. */
     161             :   union {
     162             :     fd_topo_net_tile_t net;
     163             : 
     164             :     struct {
     165             :       fd_topo_net_tile_t net;
     166             : 
     167             :       char if_virt[ 16 ];  /* device name (virtual, for routing) */
     168             :       char if_phys[ 16 ];  /* device name (physical, for RX/TX) */
     169             :       uint if_queue;       /* device queue index */
     170             : 
     171             :       /* xdp specific options */
     172             :       ulong  xdp_rx_queue_size;
     173             :       ulong  xdp_tx_queue_size;
     174             :       ulong  free_ring_depth;
     175             :       long   tx_flush_timeout_ns;
     176             :       char   xdp_mode[8];
     177             :       int    zero_copy;
     178             : 
     179             :       ulong netdev_dbl_buf_obj_id; /* dbl_buf containing netdev_tbl */
     180             :       ulong fib4_main_obj_id;      /* fib4 containing main route table */
     181             :       ulong fib4_local_obj_id;     /* fib4 containing local route table */
     182             :       ulong neigh4_obj_id;         /* neigh4 hash map header */
     183             :       ulong neigh4_ele_obj_id;     /* neigh4 hash map slots */
     184             :     } xdp;
     185             : 
     186             :     struct {
     187             :       fd_topo_net_tile_t net;
     188             :       /* sock specific options */
     189             :       int so_sndbuf;
     190             :       int so_rcvbuf;
     191             :     } sock;
     192             : 
     193             :     struct {
     194             :       ulong netdev_dbl_buf_obj_id; /* dbl_buf containing netdev_tbl */
     195             :       ulong fib4_main_obj_id;      /* fib4 containing main route table */
     196             :       ulong fib4_local_obj_id;     /* fib4 containing local route table */
     197             :       char  neigh_if[ 16 ];        /* neigh4 interface name */
     198             :       ulong neigh4_obj_id;         /* neigh4 hash map header */
     199             :       ulong neigh4_ele_obj_id;     /* neigh4 hash map slots */
     200             :     } netlink;
     201             : 
     202           0 : #define FD_TOPO_GOSSIP_ENTRYPOINTS_MAX 16UL
     203             : 
     204             :     struct {
     205             :       char identity_key_path[ PATH_MAX ];
     206             : 
     207             :       ulong         entrypoints_cnt;
     208             :       fd_ip4_port_t entrypoints[ FD_TOPO_GOSSIP_ENTRYPOINTS_MAX ];
     209             : 
     210             :       long boot_timestamp_nanos;
     211             : 
     212             :       ulong tcache_depth;
     213             : 
     214             :       ushort shred_version;
     215             :       int allow_private_address;
     216             :     } gossvf;
     217             : 
     218             :     struct {
     219             :       char identity_key_path[ PATH_MAX ];
     220             : 
     221             :       ulong         entrypoints_cnt;
     222             :       fd_ip4_port_t entrypoints[ FD_TOPO_GOSSIP_ENTRYPOINTS_MAX ];
     223             : 
     224             :       long boot_timestamp_nanos;
     225             : 
     226             :       uint   ip_addr;
     227             :       ushort shred_version;
     228             : 
     229             :       ulong  max_entries;
     230             :       ulong  max_purged;
     231             :       ulong  max_failed;
     232             : 
     233             :       struct {
     234             :         ushort gossip;
     235             :         ushort tvu;
     236             :         ushort tvu_quic;
     237             :         ushort tpu;
     238             :         ushort tpu_quic;
     239             :         ushort repair;
     240             :       } ports;
     241             :     } gossip;
     242             : 
     243             :     struct {
     244             :       uint   out_depth;
     245             :       uint   reasm_cnt;
     246             :       ulong  max_concurrent_connections;
     247             :       ulong  max_concurrent_handshakes;
     248             :       ushort quic_transaction_listen_port;
     249             :       long   idle_timeout_millis;
     250             :       uint   ack_delay_millis;
     251             :       int    retry;
     252             :       char   key_log_path[ PATH_MAX ];
     253             :     } quic;
     254             : 
     255             :     struct {
     256             :       ulong tcache_depth;
     257             :     } verify;
     258             : 
     259             :     struct {
     260             :       ulong tcache_depth;
     261             :     } dedup;
     262             : 
     263             :     struct {
     264             :       char  url[ 256 ];
     265             :       ulong url_len;
     266             :       char  sni[ 256 ];
     267             :       ulong sni_len;
     268             :       char  identity_key_path[ PATH_MAX ];
     269             :       char  key_log_path[ PATH_MAX ];
     270             :       ulong buf_sz;
     271             :       ulong ssl_heap_sz;
     272             :       ulong keepalive_interval_nanos;
     273             :       uchar tls_cert_verify : 1;
     274             :     } bundle;
     275             : 
     276             :     struct {
     277             :       ulong max_pending_transactions;
     278             :       ulong bank_tile_count;
     279             :       int   larger_max_cost_per_block;
     280             :       int   larger_shred_limits_per_block;
     281             :       int   use_consumed_cus;
     282             :       int   schedule_strategy;
     283             :       struct {
     284             :         int   enabled;
     285             :         uchar tip_distribution_program_addr[ 32 ];
     286             :         uchar tip_payment_program_addr[ 32 ];
     287             :         uchar tip_distribution_authority[ 32 ];
     288             :         ulong commission_bps;
     289             :         char  identity_key_path[ PATH_MAX ];
     290             :         char  vote_account_path[ PATH_MAX ]; /* or pubkey is okay */
     291             :       } bundle;
     292             :     } pack;
     293             : 
     294             :     struct {
     295             :       int   lagged_consecutive_leader_start;
     296             :       int   plugins_enabled;
     297             :       ulong bank_cnt;
     298             :       char  identity_key_path[ PATH_MAX ];
     299             :       struct {
     300             :         int   enabled;
     301             :         uchar tip_payment_program_addr[ 32 ];
     302             :         uchar tip_distribution_program_addr[ 32 ];
     303             :         char  vote_account_path[ PATH_MAX ];
     304             :       } bundle;
     305             :     } poh;
     306             : 
     307             :     struct {
     308             :       ulong             depth;
     309             :       ulong             fec_resolver_depth;
     310             :       char              identity_key_path[ PATH_MAX ];
     311             :       ushort            shred_listen_port;
     312             :       int               larger_shred_limits_per_block;
     313             :       ushort            expected_shred_version;
     314             :       ulong             adtl_dests_retransmit_cnt;
     315             :       fd_topo_ip_port_t adtl_dests_retransmit[ FD_TOPO_ADTL_DESTS_MAX ];
     316             :       ulong             adtl_dests_leader_cnt;
     317             :       fd_topo_ip_port_t adtl_dests_leader[ FD_TOPO_ADTL_DESTS_MAX ];
     318             :     } shred;
     319             : 
     320             :     struct {
     321             :       ulong disable_blockstore_from_slot;
     322             :     } store;
     323             : 
     324             :     struct {
     325             :       char   identity_key_path[ PATH_MAX ];
     326             :     } sign;
     327             : 
     328             :     struct {
     329             :       uint   listen_addr;
     330             :       ushort listen_port;
     331             : 
     332             :       int    is_voting;
     333             : 
     334             :       char   cluster[ 32 ];
     335             :       char   identity_key_path[ PATH_MAX ];
     336             :       char   vote_key_path[ PATH_MAX ];
     337             : 
     338             :       ulong  max_http_connections;
     339             :       ulong  max_websocket_connections;
     340             :       ulong  max_http_request_length;
     341             :       ulong  send_buffer_size_mb;
     342             :       int    schedule_strategy;
     343             : 
     344             :       int websocket_compression;
     345             :       int frontend_release_channel;
     346             :     } gui;
     347             : 
     348             :     struct {
     349             :       uint   listen_addr;
     350             :       ushort listen_port;
     351             : 
     352             :       ulong max_http_connections;
     353             :       ulong send_buffer_size_mb;
     354             :       ulong max_http_request_length;
     355             : 
     356             :       ulong max_live_slots;
     357             : 
     358             :       char identity_key_path[ PATH_MAX ];
     359             :     } rpc;
     360             : 
     361             :     struct {
     362             :       uint   prometheus_listen_addr;
     363             :       ushort prometheus_listen_port;
     364             :     } metric;
     365             : 
     366             :     struct {
     367             :       ulong fec_max;
     368             :       ulong max_vote_accounts;
     369             : 
     370             :       ulong funk_obj_id;
     371             :       ulong txncache_obj_id;
     372             :       ulong progcache_obj_id;
     373             : 
     374             :       char  shred_cap[ PATH_MAX ];
     375             : 
     376             :       char  identity_key_path[ PATH_MAX ];
     377             :       uint  ip_addr;
     378             :       char  vote_account_path[ PATH_MAX ];
     379             : 
     380             :       ushort expected_shred_version;
     381             : 
     382             :       ulong heap_size_gib;
     383             :       ulong max_live_slots;
     384             : 
     385             :       /* not specified in TOML */
     386             : 
     387             :       ulong enable_features_cnt;
     388             :       char  enable_features[ 16 ][ FD_BASE58_ENCODED_32_SZ ];
     389             : 
     390             :       int   larger_max_cost_per_block;
     391             : 
     392             :       ulong capture_start_slot;
     393             :       char  solcap_capture[ PATH_MAX ];
     394             :       char  dump_proto_dir[ PATH_MAX ];
     395             :       int   dump_block_to_pb;
     396             : 
     397             :       struct {
     398             :         int   enabled;
     399             :         uchar tip_payment_program_addr[ 32 ];
     400             :         uchar tip_distribution_program_addr[ 32 ];
     401             :         char  vote_account_path[ PATH_MAX ];
     402             :       } bundle;
     403             : 
     404             :     } replay;
     405             : 
     406             :     struct {
     407             :       ulong funk_obj_id;
     408             :       ulong txncache_obj_id;
     409             :       ulong progcache_obj_id;
     410             : 
     411             :       ulong max_live_slots;
     412             : 
     413             :       ulong capture_start_slot;
     414             :       char  solcap_capture[ PATH_MAX ];
     415             :       char  dump_proto_dir[ PATH_MAX ];
     416             :       int   dump_instr_to_pb;
     417             :       int   dump_txn_to_pb;
     418             :       int   dump_syscall_to_pb;
     419             :       int   dump_elf_to_pb;
     420             :     } exec;
     421             : 
     422             :     struct {
     423             :       ushort send_to_port;
     424             :       uint   send_to_ip_addr;
     425             :       ulong  conn_cnt;
     426             :       int    no_quic;
     427             :     } benchs;
     428             : 
     429             :     struct {
     430             :       ushort rpc_port;
     431             :       uint   rpc_ip_addr;
     432             :     } bencho;
     433             : 
     434             :     struct {
     435             :       ulong accounts_cnt;
     436             :       int   mode;
     437             :       float contending_fraction;
     438             :       float cu_price_spread;
     439             :     } benchg;
     440             : 
     441             :     struct {
     442             :       ushort  repair_intake_listen_port;
     443             :       ushort  repair_serve_listen_port;
     444             :       char    identity_key_path[ PATH_MAX ];
     445             :       ulong   max_pending_shred_sets;
     446             :       ulong   slot_max;
     447             : 
     448             :       /* non-config */
     449             : 
     450             :       ulong   repair_sign_depth;
     451             :       ulong   repair_sign_cnt;
     452             : 
     453             :       ulong   end_slot; /* repair profiler mode only */
     454             :     } repair;
     455             : 
     456             :     struct {
     457             :       char  slots_pending[PATH_MAX];
     458             : 
     459             :       ulong expected_shred_version;
     460             : 
     461             :       /* non-config */
     462             : 
     463             :       char  identity_key_path[ PATH_MAX ];
     464             :       char  shred_cap_archive[ PATH_MAX ];
     465             :       char  shred_cap_replay[ PATH_MAX ];
     466             :       ulong shred_cap_end_slot;
     467             : 
     468             :       char  blockstore_file[ PATH_MAX ];
     469             :       char  blockstore_restore[ PATH_MAX ];
     470             :     } store_int;
     471             : 
     472             :     struct {
     473             :       ushort  send_src_port;
     474             : 
     475             :       /* non-config */
     476             : 
     477             :       uint    ip_addr;
     478             :       char  identity_key_path[ PATH_MAX ];
     479             :     } send;
     480             : 
     481             :     struct {
     482             :       uint fake_dst_ip;
     483             :     } pktgen;
     484             : 
     485             :     struct {
     486             :       ulong end_slot;
     487             :       char  rocksdb_path[ PATH_MAX ];
     488             :       char  shredcap_path[ PATH_MAX ];
     489             :       char  bank_hash_path[ PATH_MAX ];
     490             :       char  ingest_mode[ 32 ];
     491             : 
     492             :       /* Set internally by the archiver tile */
     493             :       int archive_fd;
     494             :     } archiver;
     495             : 
     496             :     struct {
     497             :       int   hard_fork_fatal;
     498             :       ulong max_live_slots;
     499             :       ulong max_vote_lookahead;
     500             :       char  identity_key[ PATH_MAX ];
     501             :       char  vote_account[ PATH_MAX ];
     502             :       char  base_path[PATH_MAX];
     503             :     } tower;
     504             : 
     505             :     struct {
     506             :       char   folder_path[ PATH_MAX ];
     507             :       ushort repair_intake_listen_port;
     508             :       ulong   write_buffer_size; /* Size of the write buffer for the capture tile */
     509             :       int    enable_publish_stake_weights;
     510             :       char   manifest_path[ PATH_MAX ];
     511             : 
     512             :       /* Set internally by the capture tile */
     513             :       int shreds_fd;
     514             :       int requests_fd;
     515             :       int fecs_fd;
     516             :       int peers_fd;
     517             :       int bank_hashes_fd;
     518             :       int slices_fd;
     519             :     } shredcap;
     520             : 
     521             : #define FD_TOPO_SNAPSHOTS_GOSSIP_LIST_MAX (32UL)
     522           0 : #define FD_TOPO_SNAPSHOTS_SERVERS_MAX     (16UL)
     523             : 
     524             :     struct fd_topo_tile_snapct {
     525             :       char snapshots_path[ PATH_MAX ];
     526             : 
     527             :       struct {
     528             :         uint max_local_full_effective_age;
     529             :         uint max_local_incremental_age;
     530             : 
     531             :         struct {
     532             :           int         allow_any;
     533             :           ulong       allow_list_cnt;
     534             :           fd_pubkey_t allow_list[ FD_TOPO_SNAPSHOTS_GOSSIP_LIST_MAX ];
     535             :           ulong       block_list_cnt;
     536             :           fd_pubkey_t block_list[ FD_TOPO_SNAPSHOTS_GOSSIP_LIST_MAX ];
     537             :         } gossip;
     538             : 
     539             :         ulong         servers_cnt;
     540             :         fd_ip4_port_t servers[ FD_TOPO_SNAPSHOTS_SERVERS_MAX ];
     541             :       } sources;
     542             : 
     543             :       int  incremental_snapshots;
     544             :       uint max_full_snapshots_to_keep;
     545             :       uint max_incremental_snapshots_to_keep;
     546             :       uint full_effective_age_cancel_threshold;
     547             :     } snapct;
     548             : 
     549             :     struct {
     550             :       char snapshots_path[ PATH_MAX ];
     551             :     } snapld;
     552             : 
     553             :     struct {
     554             :       ulong max_live_slots;
     555             :       ulong funk_obj_id;
     556             :       ulong txncache_obj_id;
     557             : 
     558             :       uint  lthash_disabled : 1;
     559             :       uint  use_vinyl : 1;
     560             :       ulong vinyl_meta_map_obj_id;
     561             :       ulong vinyl_meta_pool_obj_id;
     562             :       ulong snapwr_depth;
     563             :       char  vinyl_path[ PATH_MAX ];
     564             :     } snapin;
     565             : 
     566             :     struct {
     567             :       ulong dcache_obj_id;
     568             :       char  vinyl_path[ PATH_MAX ];
     569             :     } snapwr;
     570             : 
     571             :     struct {
     572             : 
     573             :       uint   bind_address;
     574             :       ushort bind_port;
     575             : 
     576             :       ushort expected_shred_version;
     577             :       ulong entrypoints_cnt;
     578             :       fd_ip4_port_t entrypoints[ FD_TOPO_GOSSIP_ENTRYPOINTS_MAX ];
     579             :     } ipecho;
     580             : 
     581             :     struct {
     582             :       ulong max_live_slots;
     583             :       ulong txncache_obj_id;
     584             :       ulong funk_obj_id;
     585             :       ulong progcache_obj_id;
     586             :     } bank;
     587             : 
     588             :     struct {
     589             :       ulong funk_obj_id;
     590             :     } resolv;
     591             : 
     592             :     struct {
     593             :       ulong funk_obj_id;
     594             : 
     595             :       int allow_download;
     596             : 
     597             :       ushort expected_shred_version;
     598             :       ulong entrypoints_cnt;
     599             :       fd_ip4_port_t entrypoints[ FD_TOPO_GOSSIP_ENTRYPOINTS_MAX ];
     600             : 
     601             :       int has_expected_genesis_hash;
     602             :       uchar expected_genesis_hash[ 32UL ];
     603             : 
     604             :       char genesis_path[ PATH_MAX ];
     605             : 
     606             :       uint target_gid;
     607             :       uint target_uid;
     608             :     } genesi;
     609             : 
     610             :     struct {
     611             :       ulong vinyl_meta_map_obj_id;
     612             :       ulong vinyl_meta_pool_obj_id;
     613             :       ulong vinyl_line_max;
     614             :       ulong vinyl_cnc_obj_id; /* optional */
     615             :       ulong vinyl_data_obj_id;
     616             :       char  vinyl_bstream_path[ PATH_MAX ];
     617             : 
     618             :       int  io_type; /* FD_VINYL_IO_TYPE_* */
     619             :       uint uring_depth;
     620             :     } vinyl;
     621             :   };
     622             : };
     623             : 
     624             : typedef struct fd_topo_tile fd_topo_tile_t;
     625             : 
     626             : typedef struct {
     627             :   ulong id;
     628             :   char  name[ 13UL ];
     629             :   ulong wksp_id;
     630             : 
     631             :   ulong offset;
     632             :   ulong footprint;
     633             : } fd_topo_obj_t;
     634             : 
     635             : /* An fd_topo_t represents the overall structure of a Firedancer
     636             :    configuration, describing all the workspaces, tiles, and links
     637             :    between them. */
     638             : struct fd_topo {
     639             :   char           app_name[ 256UL ];
     640             :   uchar          props[ 16384UL ];
     641             : 
     642             :   ulong          wksp_cnt;
     643             :   ulong          link_cnt;
     644             :   ulong          tile_cnt;
     645             :   ulong          obj_cnt;
     646             : 
     647             :   fd_topo_wksp_t workspaces[ FD_TOPO_MAX_WKSPS ];
     648             :   fd_topo_link_t links[ FD_TOPO_MAX_LINKS ];
     649             :   fd_topo_tile_t tiles[ FD_TOPO_MAX_TILES ];
     650             :   fd_topo_obj_t  objs[ FD_TOPO_MAX_OBJS ];
     651             : 
     652             :   ulong          agave_affinity_cnt;
     653             :   ulong          agave_affinity_cpu_idx[ FD_TILE_MAX ];
     654             : 
     655             :   ulong          max_page_size; /* 2^21 or 2^30 */
     656             :   ulong          gigantic_page_threshold; /* see [hugetlbfs.gigantic_page_threshold_mib]*/
     657             : };
     658             : typedef struct fd_topo fd_topo_t;
     659             : 
     660             : typedef struct {
     661             :   char const * name;
     662             : 
     663             :   int          keep_host_networking;
     664             :   int          allow_connect;
     665             :   int          allow_renameat;
     666             :   ulong        rlimit_file_cnt;
     667             :   ulong        rlimit_address_space;
     668             :   ulong        rlimit_data;
     669             :   int          for_tpool;
     670             : 
     671             :   ulong (*populate_allowed_seccomp)( fd_topo_t const * topo, fd_topo_tile_t const * tile, ulong out_cnt, struct sock_filter * out );
     672             :   ulong (*populate_allowed_fds    )( fd_topo_t const * topo, fd_topo_tile_t const * tile, ulong out_fds_sz, int * out_fds );
     673             :   ulong (*scratch_align           )( void );
     674             :   ulong (*scratch_footprint       )( fd_topo_tile_t const * tile );
     675             :   ulong (*loose_footprint         )( fd_topo_tile_t const * tile );
     676             :   void  (*privileged_init         )( fd_topo_t * topo, fd_topo_tile_t * tile );
     677             :   void  (*unprivileged_init       )( fd_topo_t * topo, fd_topo_tile_t * tile );
     678             :   void  (*run                     )( fd_topo_t * topo, fd_topo_tile_t * tile );
     679             :   ulong (*rlimit_file_cnt_fn      )( fd_topo_t const * topo, fd_topo_tile_t const * tile );
     680             : } fd_topo_run_tile_t;
     681             : 
     682             : struct fd_topo_obj_callbacks {
     683             :   char const * name;
     684             :   ulong (* footprint )( fd_topo_t const * topo, fd_topo_obj_t const * obj );
     685             :   ulong (* align     )( fd_topo_t const * topo, fd_topo_obj_t const * obj );
     686             :   ulong (* loose     )( fd_topo_t const * topo, fd_topo_obj_t const * obj );
     687             :   void  (* new       )( fd_topo_t const * topo, fd_topo_obj_t const * obj );
     688             : };
     689             : 
     690             : typedef struct fd_topo_obj_callbacks fd_topo_obj_callbacks_t;
     691             : 
     692             : FD_PROTOTYPES_BEGIN
     693             : 
     694             : FD_FN_CONST static inline ulong
     695         918 : fd_topo_workspace_align( void ) {
     696             :   /* This needs to be the max( align ) of all the child members that
     697             :      could be aligned into this workspace, otherwise our footprint
     698             :      calculation will not be correct.  For now just set to 4096 but this
     699             :      should probably be calculated dynamically, or we should reduce
     700             :      those child aligns if we can. */
     701         918 :   return 4096UL;
     702         918 : }
     703             : 
     704             : void *
     705             : fd_topo_obj_laddr( fd_topo_t const * topo,
     706             :                    ulong             obj_id );
     707             : 
     708             : /* Returns a pointer in the local address space to the base address of
     709             :    the workspace out of which the given object was allocated. */
     710             : 
     711             : static inline void *
     712             : fd_topo_obj_wksp_base( fd_topo_t const * topo,
     713           0 :                        ulong             obj_id ) {
     714           0 :   FD_TEST( obj_id<FD_TOPO_MAX_OBJS );
     715           0 :   fd_topo_obj_t const * obj = &topo->objs[ obj_id ];
     716           0 :   FD_TEST( obj->id == obj_id );
     717           0 :   ulong const wksp_id = obj->wksp_id;
     718             : 
     719           0 :   FD_TEST( wksp_id<FD_TOPO_MAX_WKSPS );
     720           0 :   fd_topo_wksp_t const * wksp = &topo->workspaces[ wksp_id ];
     721           0 :   FD_TEST( wksp->id == wksp_id );
     722           0 :   return wksp->wksp;
     723           0 : }
     724             : 
     725             : FD_FN_PURE static inline ulong
     726             : fd_topo_tile_name_cnt( fd_topo_t const * topo,
     727           6 :                        char const *      name ) {
     728           6 :   ulong cnt = 0;
     729         129 :   for( ulong i=0; i<topo->tile_cnt; i++ ) {
     730         123 :     if( FD_UNLIKELY( !strcmp( topo->tiles[ i ].name, name ) ) ) cnt++;
     731         123 :   }
     732           6 :   return cnt;
     733           6 : }
     734             : 
     735             : /* Finds the workspace of a given name in the topology.  Returns
     736             :    ULONG_MAX if there is no such workspace.  There can be at most one
     737             :    workspace of a given name. */
     738             : 
     739             : FD_FN_PURE static inline ulong
     740             : fd_topo_find_wksp( fd_topo_t const * topo,
     741        1269 :                    char const *      name ) {
     742       37716 :   for( ulong i=0; i<topo->wksp_cnt; i++ ) {
     743       37716 :     if( FD_UNLIKELY( !strcmp( topo->workspaces[ i ].name, name ) ) ) return i;
     744       37716 :   }
     745           0 :   return ULONG_MAX;
     746        1269 : }
     747             : 
     748             : /* Find the tile of a given name and kind_id in the topology, there will
     749             :    be at most one such tile, since kind_id is unique among the name.
     750             :    Returns ULONG_MAX if there is no such tile. */
     751             : 
     752             : FD_FN_PURE static inline ulong
     753             : fd_topo_find_tile( fd_topo_t const * topo,
     754             :                    char const *      name,
     755         912 :                    ulong             kind_id ) {
     756       19011 :   for( ulong i=0; i<topo->tile_cnt; i++ ) {
     757       19005 :     if( FD_UNLIKELY( !strcmp( topo->tiles[ i ].name, name ) ) && topo->tiles[ i ].kind_id == kind_id ) return i;
     758       19005 :   }
     759           6 :   return ULONG_MAX;
     760         912 : }
     761             : 
     762             : /* Find the link of a given name and kind_id in the topology, there will
     763             :    be at most one such link, since kind_id is unique among the name.
     764             :    Returns ULONG_MAX if there is no such link. */
     765             : 
     766             : FD_FN_PURE static inline ulong
     767             : fd_topo_find_link( fd_topo_t const * topo,
     768             :                    char const *      name,
     769         726 :                    ulong             kind_id ) {
     770       24681 :   for( ulong i=0; i<topo->link_cnt; i++ ) {
     771       24681 :     if( FD_UNLIKELY( !strcmp( topo->links[ i ].name, name ) ) && topo->links[ i ].kind_id == kind_id ) return i;
     772       24681 :   }
     773           0 :   return ULONG_MAX;
     774         726 : }
     775             : 
     776             : FD_FN_PURE static inline ulong
     777             : fd_topo_find_tile_in_link( fd_topo_t const *      topo,
     778             :                            fd_topo_tile_t const * tile,
     779             :                            char const *           name,
     780           0 :                            ulong                  kind_id ) {
     781           0 :   for( ulong i=0; i<tile->in_cnt; i++ ) {
     782           0 :     if( FD_UNLIKELY( !strcmp( topo->links[ tile->in_link_id[ i ] ].name, name ) )
     783           0 :         && topo->links[ tile->in_link_id[ i ] ].kind_id == kind_id ) return i;
     784           0 :   }
     785           0 :   return ULONG_MAX;
     786           0 : }
     787             : 
     788             : FD_FN_PURE static inline ulong
     789             : fd_topo_find_tile_out_link( fd_topo_t const *      topo,
     790             :                             fd_topo_tile_t const * tile,
     791             :                             char const *           name,
     792           0 :                             ulong                  kind_id ) {
     793           0 :   for( ulong i=0; i<tile->out_cnt; i++ ) {
     794           0 :     if( FD_UNLIKELY( !strcmp( topo->links[ tile->out_link_id[ i ] ].name, name ) )
     795           0 :         && topo->links[ tile->out_link_id[ i ] ].kind_id == kind_id ) return i;
     796           0 :   }
     797           0 :   return ULONG_MAX;
     798           0 : }
     799             : 
     800             : /* Find the id of the tile which is a producer for the given link.  If
     801             :    no tile is a producer for the link, returns ULONG_MAX.  This should
     802             :    not be possible for a well formed and validated topology.  */
     803             : FD_FN_PURE static inline ulong
     804             : fd_topo_find_link_producer( fd_topo_t const *      topo,
     805           0 :                             fd_topo_link_t const * link ) {
     806           0 :   for( ulong i=0; i<topo->tile_cnt; i++ ) {
     807           0 :     fd_topo_tile_t const * tile = &topo->tiles[ i ];
     808             : 
     809           0 :     for( ulong j=0; j<tile->out_cnt; j++ ) {
     810           0 :       if( FD_UNLIKELY( tile->out_link_id[ j ] == link->id ) ) return i;
     811           0 :     }
     812           0 :   }
     813           0 :   return ULONG_MAX;
     814           0 : }
     815             : 
     816             : /* Given a link, count the number of consumers of that link among all
     817             :    the tiles in the topology. */
     818             : FD_FN_PURE static inline ulong
     819             : fd_topo_link_consumer_cnt( fd_topo_t const *      topo,
     820         225 :                            fd_topo_link_t const * link ) {
     821         225 :   ulong cnt = 0;
     822        9225 :   for( ulong i=0; i<topo->tile_cnt; i++ ) {
     823        9000 :     fd_topo_tile_t const * tile = &topo->tiles[ i ];
     824       44775 :     for( ulong j=0; j<tile->in_cnt; j++ ) {
     825       35775 :       if( FD_UNLIKELY( tile->in_link_id[ j ] == link->id ) ) cnt++;
     826       35775 :     }
     827        9000 :   }
     828             : 
     829         225 :   return cnt;
     830         225 : }
     831             : 
     832             : /* Given a link, count the number of reliable consumers of that link
     833             :    among all the tiles in the topology. */
     834             : FD_FN_PURE static inline ulong
     835             : fd_topo_link_reliable_consumer_cnt( fd_topo_t const *      topo,
     836           0 :                                     fd_topo_link_t const * link ) {
     837           0 :   ulong cnt = 0;
     838           0 :   for( ulong i=0; i<topo->tile_cnt; i++ ) {
     839           0 :     fd_topo_tile_t const * tile = &topo->tiles[ i ];
     840           0 :     for( ulong j=0; j<tile->in_cnt; j++ ) {
     841           0 :       if( FD_UNLIKELY( tile->in_link_id[ j ] == link->id && tile->in_link_reliable[ j ] ) ) cnt++;
     842           0 :     }
     843           0 :   }
     844             : 
     845           0 :   return cnt;
     846           0 : }
     847             : 
     848             : FD_FN_PURE static inline ulong
     849             : fd_topo_tile_consumer_cnt( fd_topo_t const *      topo,
     850           0 :                            fd_topo_tile_t const * tile ) {
     851           0 :   (void)topo;
     852           0 :   return tile->out_cnt;
     853           0 : }
     854             : 
     855             : FD_FN_PURE static inline ulong
     856             : fd_topo_tile_reliable_consumer_cnt( fd_topo_t const *      topo,
     857           0 :                                     fd_topo_tile_t const * tile ) {
     858           0 :   ulong reliable_cons_cnt = 0UL;
     859           0 :   for( ulong i=0UL; i<topo->tile_cnt; i++ ) {
     860           0 :     fd_topo_tile_t const * consumer_tile = &topo->tiles[ i ];
     861           0 :     for( ulong j=0UL; j<consumer_tile->in_cnt; j++ ) {
     862           0 :       for( ulong k=0UL; k<tile->out_cnt; k++ ) {
     863           0 :         if( FD_UNLIKELY( consumer_tile->in_link_id[ j ]==tile->out_link_id[ k ] && consumer_tile->in_link_reliable[ j ] ) ) {
     864           0 :           reliable_cons_cnt++;
     865           0 :         }
     866           0 :       }
     867           0 :     }
     868           0 :   }
     869           0 :   return reliable_cons_cnt;
     870           0 : }
     871             : 
     872             : FD_FN_PURE static inline ulong
     873             : fd_topo_tile_producer_cnt( fd_topo_t const *     topo,
     874           0 :                            fd_topo_tile_t const * tile ) {
     875           0 :   (void)topo;
     876           0 :   ulong in_cnt = 0UL;
     877           0 :   for( ulong i=0UL; i<tile->in_cnt; i++ ) {
     878           0 :     if( FD_UNLIKELY( !tile->in_link_poll[ i ] ) ) continue;
     879           0 :     in_cnt++;
     880           0 :   }
     881           0 :   return in_cnt;
     882           0 : }
     883             : 
     884             : /* Join (map into the process) all shared memory (huge/gigantic pages)
     885             :    needed by the tile, in the given topology.  All memory associated
     886             :    with the tile (aka. used by links that the tile either produces to or
     887             :    consumes from, or used by the tile itself for its cnc) will be
     888             :    attached (mapped into the process).
     889             : 
     890             :    This is needed to play nicely with the sandbox.  Once a process is
     891             :    sandboxed we can no longer map any memory. */
     892             : void
     893             : fd_topo_join_tile_workspaces( fd_topo_t *      topo,
     894             :                               fd_topo_tile_t * tile );
     895             : 
     896             : /* Join (map into the process) the shared memory (huge/gigantic pages)
     897             :    for the given workspace.  Mode is one of
     898             :    FD_SHMEM_JOIN_MODE_READ_WRITE or FD_SHMEM_JOIN_MODE_READ_ONLY and
     899             :    determines the prot argument that will be passed to mmap when mapping
     900             :    the pages in (PROT_WRITE or PROT_READ respectively). */
     901             : void
     902             : fd_topo_join_workspace( fd_topo_t *      topo,
     903             :                         fd_topo_wksp_t * wksp,
     904             :                         int              mode );
     905             : 
     906             : /* Join (map into the process) all shared memory (huge/gigantic pages)
     907             :    needed by all tiles in the topology.  Mode is one of
     908             :    FD_SHMEM_JOIN_MODE_READ_WRITE or FD_SHMEM_JOIN_MODE_READ_ONLY and
     909             :    determines the prot argument that will be passed to mmap when
     910             :    mapping the pages in (PROT_WRITE or PROT_READ respectively). */
     911             : void
     912             : fd_topo_join_workspaces( fd_topo_t *  topo,
     913             :                          int          mode );
     914             : 
     915             : /* Leave (unmap from the process) the shared memory needed for the
     916             :    given workspace in the topology, if it was previously mapped.
     917             : 
     918             :    topo and wksp are assumed non-NULL.  It is OK if the workspace
     919             :    has not been previously joined, in which case this is a no-op. */
     920             : 
     921             : void
     922             : fd_topo_leave_workspace( fd_topo_t *      topo,
     923             :                          fd_topo_wksp_t * wksp );
     924             : 
     925             : /* Leave (unmap from the process) all shared memory needed by all
     926             :    tiles in the topology, if each of them was mapped.
     927             : 
     928             :    topo is assumed non-NULL.  Only workspaces which were previously
     929             :    joined are unmapped. */
     930             : 
     931             : void
     932             : fd_topo_leave_workspaces( fd_topo_t * topo );
     933             : 
     934             : /* Create the given workspace needed by the topology on the system.
     935             :    This does not "join" the workspaces (map their memory into the
     936             :    process), but only creates the .wksp file and formats it correctly
     937             :    as a workspace.
     938             : 
     939             :    Returns 0 on success and -1 on failure, with errno set to the error.
     940             :    The only reason for failure currently that will be returned is
     941             :    ENOMEM, as other unexpected errors will cause the program to exit.
     942             : 
     943             :    If update_existing is 1, the workspace will not be created from
     944             :    scratch but it will be assumed that it already exists from a prior
     945             :    run and needs to be maybe resized and then have the header
     946             :    structures reinitialized.  This can save a very expensive operation
     947             :    of zeroing all of the workspace pages.  This is dangerous in
     948             :    production because it can leave stray memory from prior runs around,
     949             :    and should only be used in development environments. */
     950             : 
     951             : int
     952             : fd_topo_create_workspace( fd_topo_t *      topo,
     953             :                           fd_topo_wksp_t * wksp,
     954             :                           int              update_existing );
     955             : 
     956             : /* Join the standard IPC objects needed by the topology of this particular
     957             :    tile */
     958             : 
     959             : void
     960             : fd_topo_fill_tile( fd_topo_t *      topo,
     961             :                    fd_topo_tile_t * tile );
     962             : 
     963             : /* Same as fd_topo_fill_tile but fills in all the objects for a
     964             :    particular workspace with the given mode. */
     965             : void
     966             : fd_topo_workspace_fill( fd_topo_t *      topo,
     967             :                         fd_topo_wksp_t * wksp );
     968             : 
     969             : /* Apply a new function to every object that is resident in the given
     970             :    workspace in the topology. */
     971             : 
     972             : void
     973             : fd_topo_wksp_new( fd_topo_t const *          topo,
     974             :                   fd_topo_wksp_t const *     wksp,
     975             :                   fd_topo_obj_callbacks_t ** callbacks );
     976             : 
     977             : /* Same as fd_topo_fill_tile but fills in all tiles in the topology. */
     978             : 
     979             : void
     980             : fd_topo_fill( fd_topo_t * topo );
     981             : 
     982             : /* fd_topo_tile_stack_join joins a huge page optimized stack for the
     983             :    provided tile.  The stack is assumed to already exist at a known
     984             :    path in the hugetlbfs mount. */
     985             : 
     986             : void *
     987             : fd_topo_tile_stack_join( char const * app_name,
     988             :                          char const * tile_name,
     989             :                          ulong        tile_kind_id );
     990             : 
     991             : /* fd_topo_run_single_process runs all the tiles in a single process
     992             :    (the calling process).  This spawns a thread for each tile, switches
     993             :    that thread to the given UID and GID and then runs the tile in it.
     994             :    Each thread will never exit, as tiles are expected to run forever.
     995             :    An error is logged and the application will exit if a tile exits.
     996             :    The function itself does return after spawning all the threads.
     997             : 
     998             :    The threads will not be sandboxed in any way, except switching to the
     999             :    provided UID and GID, so they will share the same address space, and
    1000             :    not have any seccomp restrictions or use any Linux namespaces.  The
    1001             :    calling thread will also switch to the provided UID and GID before
    1002             :    it returns.
    1003             : 
    1004             :    In production, when running with an Agave child process this is
    1005             :    used for spawning certain tiles inside the Agave address space.
    1006             :    It's also useful for tooling and debugging, but is not how the main
    1007             :    production Firedancer process runs.  For production, each tile is run
    1008             :    in its own address space with a separate process and full security
    1009             :    sandbox.
    1010             : 
    1011             :    The agave argument determines which tiles are started.  If the
    1012             :    argument is 0 or 1, only non-agave (or only agave) tiles are started.
    1013             :    If the argument is any other value, all tiles in the topology are
    1014             :    started regardless of if they are Agave tiles or not. */
    1015             : 
    1016             : void
    1017             : fd_topo_run_single_process( fd_topo_t *       topo,
    1018             :                             int               agave,
    1019             :                             uint              uid,
    1020             :                             uint              gid,
    1021             :                             fd_topo_run_tile_t (* tile_run )( fd_topo_tile_t const * tile ) );
    1022             : 
    1023             : /* fd_topo_run_tile runs the given tile directly within the current
    1024             :    process (and thread).  The function will never return, as tiles are
    1025             :    expected to run forever.  An error is logged and the application will
    1026             :    exit if the tile exits.
    1027             : 
    1028             :    The sandbox argument determines if the current process will be
    1029             :    sandboxed fully before starting the tile.  The thread will switch to
    1030             :    the UID and GID provided before starting the tile, even if the thread
    1031             :    is not being sandboxed.  Although POSIX specifies that all threads in
    1032             :    a process must share a UID and GID, this is not the case on Linux.
    1033             :    The thread will switch to the provided UID and GID without switching
    1034             :    the other threads in the process.
    1035             : 
    1036             :    If keep_controlling_terminal is set to 0, and the sandbox is enabled
    1037             :    the controlling terminal will be detached as an additional sandbox
    1038             :    measure, but you will not be able to send Ctrl+C or other signals
    1039             :    from the terminal.  See fd_sandbox.h for more information.
    1040             : 
    1041             :    The allow_fd argument is only used if sandbox is true, and is a file
    1042             :    descriptor which will be allowed to exist in the process.  Normally
    1043             :    the sandbox code rejects and aborts if there is an unexpected file
    1044             :    descriptor present on boot.  This is helpful to allow a parent
    1045             :    process to be notified on termination of the tile by waiting for a
    1046             :    pipe file descriptor to get closed.
    1047             : 
    1048             :    wait and debugger are both used in debugging.  If wait is non-NULL,
    1049             :    the runner will wait until the value pointed to by wait is non-zero
    1050             :    before launching the tile.  Likewise, if debugger is non-NULL, the
    1051             :    runner will wait until a debugger is attached before setting the
    1052             :    value pointed to by debugger to non-zero.  These are intended to be
    1053             :    used as a pair, where many tiles share a waiting reference, and then
    1054             :    one of the tiles (a tile you want to attach the debugger to) has the
    1055             :    same reference provided as the debugger, so all tiles will stop and
    1056             :    wait for the debugger to attach to it before proceeding. */
    1057             : 
    1058             : void
    1059             : fd_topo_run_tile( fd_topo_t *          topo,
    1060             :                   fd_topo_tile_t *     tile,
    1061             :                   int                  sandbox,
    1062             :                   int                  keep_controlling_terminal,
    1063             :                   int                  dumpable,
    1064             :                   uint                 uid,
    1065             :                   uint                 gid,
    1066             :                   int                  allow_fd,
    1067             :                   volatile int *       wait,
    1068             :                   volatile int *       debugger,
    1069             :                   fd_topo_run_tile_t * tile_run );
    1070             : 
    1071             : /* This is for determining the value of RLIMIT_MLOCK that we need to
    1072             :    successfully run all tiles in separate processes.  The value returned
    1073             :    is the maximum amount of memory that will be locked with mlock() by
    1074             :    any individual process in the tree.  Specifically, if we have three
    1075             :    tile processes, and they each need to lock 5, 9, and 2 MiB of memory
    1076             :    respectively, RLIMIT_MLOCK needs to be 9 MiB to allow all three
    1077             :    process mlock() calls to succeed.
    1078             : 
    1079             :    Tiles lock memory in three ways.  Any workspace they are using, they
    1080             :    lock the entire workspace.  Then each tile uses huge pages for the
    1081             :    stack which are also locked, and finally some tiles use private
    1082             :    locked mmaps outside the workspace for storing key material.  The
    1083             :    results here include all of this memory together.
    1084             : 
    1085             :    The result is not necessarily the amount of memory used by the tile
    1086             :    process, although it will be quite close.  Tiles could potentially
    1087             :    allocate memory (eg, with brk) without needing to lock it, which
    1088             :    would not need to included, and some kernel memory that tiles cause
    1089             :    to be allocated (for example XSK buffers) is also not included.  The
    1090             :    actual amount of memory used will not be less than this value. */
    1091             : FD_FN_PURE ulong
    1092             : fd_topo_mlock_max_tile( fd_topo_t const * topo );
    1093             : 
    1094             : /* Same as fd_topo_mlock_max_tile, but for loading the entire topology
    1095             :    into one process, rather than a separate process per tile.  This is
    1096             :    used, for example, by the configuration code when it creates all the
    1097             :    workspaces, or the monitor that maps the entire system into one
    1098             :    address space. */
    1099             : FD_FN_PURE ulong
    1100             : fd_topo_mlock( fd_topo_t const * topo );
    1101             : 
    1102             : /* This returns the number of gigantic pages needed by the topology on
    1103             :    the provided numa node.  It includes pages needed by the workspaces,
    1104             :    as well as additional allocations like huge pages for process stacks
    1105             :    and private key storage. */
    1106             : 
    1107             : FD_FN_PURE ulong
    1108             : fd_topo_gigantic_page_cnt( fd_topo_t const * topo,
    1109             :                            ulong             numa_idx );
    1110             : 
    1111             : /* This returns the number of huge pages in the application needed by
    1112             :    the topology on the provided numa node.  It includes pages needed by
    1113             :    things placed in the hugetlbfs (workspaces, process stacks).  If
    1114             :    include_anonymous is true, it also includes anonymous hugepages which
    1115             :    are needed but are not placed in the hugetlbfs. */
    1116             : 
    1117             : FD_FN_PURE ulong
    1118             : fd_topo_huge_page_cnt( fd_topo_t const * topo,
    1119             :                        ulong             numa_idx,
    1120             :                        int               include_anonymous );
    1121             : 
    1122             : /* Prints a message describing the topology to an output stream.  If
    1123             :    stdout is true, will be written to stdout, otherwise will be written
    1124             :    as a NOTICE log message to the log file. */
    1125             : void
    1126             : fd_topo_print_log( int         stdout,
    1127             :                    fd_topo_t * topo );
    1128             : 
    1129             : FD_PROTOTYPES_END
    1130             : 
    1131             : #endif /* HEADER_fd_src_disco_topo_fd_topo_h */

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