struct transaction_receipt_header {enum status_enum {executed = 0, //transaction成功執行，沒有錯誤發生soft_fail = 1, //hard_fail = 2,delayed = 3,expired = 4};fc::enum_type<uint8_t,status_enum> status;uint32_t cpu_usage_us; //總CPU使用時間，單位為微秒fc::unsigned_int net_usage_words;//總網絡使用量 }struct transaction_receipt : public transaction_receipt_header {fc::static_variant<transaction_id_type,packed_transaction> trx; //已經執行過的transactions }struct transaction_header {time_point_sec expiration; //過期時間uint16_t ref_block_num = 0U; //用于TaPos驗證uint32_t ref_block_prefix = 0UL; //用于TaPos驗證fc::unsigned_int max_net_usage_words = 0UL;uint8_t max_cpu_usage_ms = 0;fc::unsigned_int delay_sec;}struct transaction : public transaction_header {vector<action> context_free_actions;vector<action> actions;extensions_type transaction_extensions;}struct signed_transaction : public transaction {vector<signature> signatures;vector<bytes> context_free_data; //和context_free_action一一對應}struct packed_transaction : fc::reflect_init {using prunable_data_t = std::variant< full_legacy,none,partial,full >;prunable_data_t prunable_data;public:vector<signature_type> signatures;fc::enum_type<uint8_t,compression_type> compression;bytes packed_context_free_data;bytes packed_trx;public://cache unpacked trx, for thread safety do not modify after constructionsigned_transaction unpacked_trx;transaction_id_type trx_id;};

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