Line data    Source code

       1             : #ifndef HEADER_fd_src_flamenco_features_fd_features_h
       2             : #define HEADER_fd_src_flamenco_features_fd_features_h
       3             : 
       4             : #include "../fd_flamenco_base.h"
       5             : #include "fd_features_generated.h"
       6             : #include "../types/fd_types.h"
       7             : /* Macro FEATURE_ID_CNT expands to the number of features in
       8             :    fd_features_t. */
       9             : 
      10             : //#define FD_FEATURE_ID_CNT (... see generated.h ...)
      11             : 
      12             : /* FD_FEATURE_DISABLED is the sentinel value of the feature activation
      13             :    slot when the feature has not yet been activated. */
      14             : 
      15     1878669 : #define FD_FEATURE_DISABLED (ULONG_MAX)
      16             : 
      17             : /* Convenience macros for checking features */
      18             : 
      19       16494 : #define FD_FEATURE_ACTIVE_(_slot, _features, _feature_name)               ( _slot >= (_features)-> _feature_name )
      20             : #define FD_FEATURE_JUST_ACTIVATED_(_slot, _features, _feature_name)       ( _slot == (_features). _feature_name )
      21           0 : #define FD_FEATURE_ACTIVE_OFFSET_(_slot, _features, _offset)              ( _slot >= (_features).f[_offset>>3] )
      22           0 : #define FD_FEATURE_JUST_ACTIVATED_OFFSET_(_slot, _features, _offset)      ( _slot == (_features).f[_offset>>3] )
      23             : 
      24             : #define FD_FEATURE_SET_ACTIVE(_features, _feature_name, _slot)            ( (_features)-> _feature_name = _slot )
      25           0 : #define FD_FEATURE_ACTIVE_OFFSET(_slot, _features, _offset)               FD_FEATURE_ACTIVE_OFFSET_( _slot, _features, _offset )
      26           0 : #define FD_FEATURE_JUST_ACTIVATED_OFFSET(_bank, _offset)                  FD_FEATURE_JUST_ACTIVATED_OFFSET_( fd_bank_slot_get( _bank ), fd_bank_features_get( _bank ), _offset )
      27       16386 : #define FD_FEATURE_ACTIVE(_slot, _features, _feature_name)                FD_FEATURE_ACTIVE_( _slot, _features, _feature_name )
      28           0 : #define FD_FEATURE_ACTIVE_BANK(_bank, _feature_name)                      FD_FEATURE_ACTIVE_( fd_bank_slot_get( _bank ), fd_bank_features_query( _bank ), _feature_name )
      29             : 
      30             : 
      31             : /* fd_features_t is the current set of enabled feature flags.
      32             : 
      33             :    Each feature has a corresponding account in the account database,
      34             :    which are used to control activation.  This structure contains an
      35             :    ulong of the activation slots of each feature for convenience (or
      36             :    FD_FEATURE_DISABLED if not yet activated).  The feature params
      37             :    contained in this structure change over time, as activated features
      38             :    become default, and as new pending feature activations get added.
      39             : 
      40             :    Usage:
      41             : 
      42             :      fd_features_t * features;
      43             : 
      44             :      // Direct API
      45             :      ulong activation_slot = features->FEATURE_NAME;
      46             : 
      47             :      // Indirect API
      48             :      fd_feature_id_t const * id;
      49             :      ulong activation_slot = fd_features_get( id );
      50             :      ... id->index safe in [0,FD_FEATURE_CNT) ... */
      51             : 
      52             : typedef union fd_features fd_features_t;
      53             : 
      54             : /* fd_feature_id_t maps a feature ID (account address) to the byte
      55             :    offset in fd_features_t. */
      56             : 
      57             : struct fd_feature_id {
      58             :   ulong        index;                /* index of feature in fd_features_t */
      59             :   fd_pubkey_t  id;                   /* pubkey of feature */
      60             :   char const * name;                 /* feature name cstr */
      61             :   uint         cleaned_up[3];        /* cleaned_up cluster version for feature */
      62             :   uchar        reverted;             /* if the feature was reverted */
      63             :   uchar        hardcode_for_fuzzing; /* if the should be treated as hardcoded in the firedancer fuzzing harness */
      64             : };
      65             : typedef struct fd_feature_id fd_feature_id_t;
      66             : 
      67             : FD_PROTOTYPES_BEGIN
      68             : 
      69             : /* fd_feature_ids is the list of known feature IDs.
      70             :    The last element has offset==ULONG_MAX. */
      71             : extern fd_feature_id_t const ids[];
      72             : 
      73             : /* fd_features_disable_all disables all features (cleaned_up or not). */
      74             : 
      75             : void
      76             : fd_features_disable_all( fd_features_t * f );
      77             : 
      78             : /* fd_features_enable_all enables all features (supported or not). */
      79             : 
      80             : void
      81             : fd_features_enable_all( fd_features_t * );
      82             : 
      83             : /* fd_features_enable_cleaned_up enables all features marked as "hard
      84             :    coded".  These are features that are baked into the current version
      85             :    of the Firedancer software and can't be disabled. */
      86             : 
      87             : void
      88             : fd_features_enable_cleaned_up( fd_features_t *, fd_cluster_version_t const * );
      89             : 
      90             : /* fd_features_enable_one_offs enables all manually passed in features. */
      91             : 
      92             : void
      93             : fd_features_enable_one_offs( fd_features_t * features,
      94             :                              char const * *  one_offs,
      95             :                              uint            one_offs_cnt,
      96             :                              ulong           slot );
      97             : 
      98             : /* fd_feature_iter_{...} is an iterator-style API over all supported
      99             :    features in this version of Firedancer.  Usage:
     100             : 
     101             :      for( fd_feature_id_t const * id = fd_feature_iter_init();
     102             :                                       !fd_feature_iter_done( id );
     103             :                                   id = fd_feature_iter_next( id ) ) {
     104             :        ...
     105             :      } */
     106             : 
     107             : static inline fd_feature_id_t const *
     108        7692 : fd_feature_iter_init( void ) {
     109        7692 :   return ids;
     110        7692 : }
     111             : 
     112             : static inline int
     113     1892214 : fd_feature_iter_done( fd_feature_id_t const * id ) {
     114     1892214 :   return id->index == ULONG_MAX;
     115     1892214 : }
     116             : 
     117             : static inline fd_feature_id_t const *
     118     1884522 : fd_feature_iter_next( fd_feature_id_t const * id ) {
     119     1884522 :   return id+1;
     120     1884522 : }
     121             : 
     122             : /* fd_features_set sets the activation slot of the given feature ID. */
     123             : 
     124             : static inline void
     125             : fd_features_set( fd_features_t *         features,
     126             :                  fd_feature_id_t const * id,
     127     1887078 :                  ulong                   slot ) {
     128     1887078 :   features->f[ id->index ] = slot;
     129     1887078 : }
     130             : 
     131             : /* fd_features_get returns the activation slot of the given feature ID.
     132             :    Returns ULONG_MAX if the feature is not scheduled for activation. */
     133             : 
     134             : static inline ulong
     135             : fd_features_get( fd_features_t const *   features,
     136         735 :                  fd_feature_id_t const * id ) {
     137         735 :   return features->f[ id->index ];
     138         735 : }
     139             : 
     140             : /* fd_feature_id_query queries a feature ID given the first 8 bytes of
     141             :    the feature address (little-endian order).  Returns pointer to ID in
     142             :    `ids` array on success, or NULL on failure. */
     143             : 
     144             : FD_FN_CONST fd_feature_id_t const *
     145             : fd_feature_id_query( ulong prefix );
     146             : 
     147             : FD_PROTOTYPES_END
     148             : 
     149             : #endif /* HEADER_fd_src_flamenco_features_fd_features_h */