Line data    Source code

       1             : /* QUIC encoders footprint */
       2             : 
       3             : /* used to define functions for determining footprint upper bound
       4             :    without encoding the data */
       5             : 
       6             : /* "returns" the number of bytes encoded */
       7             : #define FD_TEMPL_ENCODE_FP(TYPE) ( sizeof(fd_quic_##TYPE) )
       8             : 
       9             : /* returns bytes to be encoded */
      10             : #define FD_TEMPL_DEF_STRUCT_BEGIN(NAME)                                   \
      11    17090699 :   ulong fd_quic_encode_footprint_##NAME( fd_quic_##NAME##_t * frame ) {   \
      12    17090699 :     (void)frame;                                                          \
      13    17090699 :     ulong   buf      = 0;                                                 \
      14    17090699 :     ulong   tmp_len  = 0;          (void)tmp_len;                         \
      15             : 
      16             : /* 1 byte for TYPE */
      17             : #define FD_TEMPL_MBR_FRAME_TYPE(NAME,ID_LO,ID_HI)                         \
      18    17090699 :     buf++;
      19             : 
      20             : 
      21             : /* determines footprint of element */
      22             : #define FD_TEMPL_MBR_ELEM(NAME,TYPE)                                        \
      23             :     buf += FD_TEMPL_ENCODE_FP(TYPE);                                        \
      24             : 
      25             : 
      26             : /* worst case pktnum encoded size */
      27             : #define FD_TEMPL_MBR_ELEM_PKTNUM(NAME,TYPE)                            \
      28             :     buf += 4;
      29             : 
      30             : 
      31             : /* worst case varint encoded size */
      32             : #define FD_TEMPL_MBR_ELEM_VARINT(NAME,TYPE)                            \
      33    17090705 :     buf += 8;                                                          \
      34             : 
      35             : 
      36             : /* VAR currently assumed to be aligned bytes */
      37             : #define FD_TEMPL_MBR_ELEM_VAR(NAME,BITS_MIN,BITS_MAX,LEN_NAME)           \
      38             :     tmp_len = frame->LEN_NAME;                                           \
      39             :     buf += tmp_len;
      40             : 
      41             : 
      42             : /* VAR_RAW currently assumed to be aligned bytes */
      43             : #define FD_TEMPL_MBR_ELEM_VAR_RAW(NAME,BITS_MIN,BITS_MAX,LEN_NAME)       \
      44             :     tmp_len = frame->LEN_NAME;                                           \
      45             :     buf += tmp_len;
      46             : 
      47             : /* determine the footprint of encoded ARRAY */
      48             : #define FD_TEMPL_MBR_ELEM_ARRAY(NAME,TYPE,BYTES_MIN,BYTES_MAX)           \
      49             :     tmp_len = frame->NAME##_len * sizeof(fd_quic_##TYPE);                \
      50             :     buf += tmp_len * FD_TEMPL_ENCODE_FP(TYPE);                           \
      51             : 
      52             : /* FIXED is an array of elements, each of the same size,
      53             :    with length constant */
      54             : #define FD_TEMPL_MBR_ELEM_FIXED(NAME,TYPE,ELEMS)                         \
      55             :     buf += ELEMS * sizeof( fd_quic_##TYPE );
      56             : 
      57             : /* TODO remove abort() once tested */
      58             : #define FD_TEMPL_MBR_OPT(TYPE,NAME,MASK,...)                             \
      59    51272079 :     if( frame->NAME##_opt ) {                                            \
      60    42725549 :       __VA_ARGS__                                                        \
      61    42725549 :     }
      62             : 
      63             : 
      64             : /* at end, return the number of bytes consumed */
      65             : #define FD_TEMPL_DEF_STRUCT_END(NAME)                                    \
      66    17090699 :     return buf;                                                          \
      67    17090699 :   }
      68             : 
      69             : #include "fd_quic_dft.h"
      70             :