FIX ACCEPTOR/INITIATOR

[kapitan-k]

Personally I always hated FIX and it means mayor overhead . I implemented several solutions on flat encoding with "plain structs" as required by customers needed very fast solutions in the past.
Example:

typedef struct order_base_t {
    uint64_t order_id;
    uint64_t instrument_id;
    uint64_t limit_price;

    uint8_t order_type;
    uint8_t order_side;
    ...
} order_base_t;

or order_id as two uint64_t to include time, sequence etc.