Line data    Source code

       1             : /* QUIC encoders footprint */
       2             : 
       3             : /* used to find max encoding sizes for compile time allocations
       4             :    constructs structs with char arrays to determine the sizes
       5             :    this avoids the need for packed
       6             :    then a simple sizeof does the job */
       7             : 
       8             : /* returns the max footprint for a given frame */
       9             : #define FD_QUIC_MAX_FOOTPRINT(NAME) \
      10    12727137 :   (sizeof(struct fd_quic_max_fp_struct_##NAME))
      11             : 
      12             : /* "returns" the number of bytes encoded */
      13             : #define FD_TEMPL_ENCODE_FP(TYPE) ( sizeof(fd_quic_##TYPE) )
      14             : 
      15             : /* returns bytes to be encoded */
      16             : #define FD_TEMPL_DEF_STRUCT_BEGIN(NAME)                                    \
      17             :   struct fd_quic_max_fp_struct_##NAME {
      18             : 
      19             : /* 1 byte for TYPE */
      20             : #define FD_TEMPL_MBR_FRAME_TYPE(NAME,ID_LO,ID_HI)                          \
      21             :     char type[1];
      22             : 
      23             : 
      24             : /* determines footprint of element */
      25             : #define FD_TEMPL_MBR_ELEM(NAME,TYPE)                                       \
      26             :     char NAME[FD_TEMPL_ENCODE_FP(TYPE)];
      27             : 
      28             : 
      29             : /* determines the encoding footprint of the PKTNUM */
      30             : #define FD_TEMPL_MBR_ELEM_PKTNUM(NAME,TYPE)                                \
      31             :     char NAME[8];
      32             : 
      33             : 
      34             : /* determines the encoding footprint of the VARINT */
      35             : #define FD_TEMPL_MBR_ELEM_VARINT(NAME,TYPE)                            \
      36             :     char NAME[8];
      37             : 
      38             : 
      39             : #define FD_TEMPL_MBR_ELEM_VAR(NAME,MIN,MAX,LEN_NAME) \
      40             :     char NAME[MAX];
      41             : 
      42             : 
      43             : #define FD_TEMPL_MBR_ELEM_VAR_RAW(NAME,MIN,MAX,LEN_NAME) \
      44             :     char NAME[MAX];
      45             : 
      46             : 
      47             : #define FD_TEMPL_MBR_ELEM_RAW(NAME,BYTES) \
      48             :     char NAME[BYTES];
      49             : 
      50             : 
      51             : /* at end, return the number of bytes consumed */
      52             : #define FD_TEMPL_DEF_STRUCT_END(NAME)                                    \
      53             :   };
      54             : 
      55             : #include "fd_quic_dft.h"
      56             :