306 lines
		
	
	
		
			12 KiB
		
	
	
	
		
			Python
		
	
	
		
			Executable File
		
	
	
	
	
			
		
		
	
	
			306 lines
		
	
	
		
			12 KiB
		
	
	
	
		
			Python
		
	
	
		
			Executable File
		
	
	
	
	
#!/usr/bin/env python3
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"""Example client for the sat-rs example application"""
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import struct
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import logging
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import sys
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import time
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from typing import Any, Optional, cast
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from prompt_toolkit.history import FileHistory, History
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from spacepackets.ecss.tm import CdsShortTimestamp
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import tmtccmd
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from spacepackets.ecss import PusTelemetry, PusTelecommand, PusTm, PusVerificator
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from spacepackets.ecss.pus_17_test import Service17Tm
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from spacepackets.ecss.pus_1_verification import UnpackParams, Service1Tm
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from tmtccmd import TcHandlerBase, ProcedureParamsWrapper
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from tmtccmd.core.base import BackendRequest
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from tmtccmd.core.ccsds_backend import QueueWrapper
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from tmtccmd.logging import add_colorlog_console_logger
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from tmtccmd.pus import VerificationWrapper
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from tmtccmd.tmtc import CcsdsTmHandler, SpecificApidHandlerBase
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from tmtccmd.com import ComInterface
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from tmtccmd.config import (
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    CmdTreeNode,
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    default_json_path,
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    SetupParams,
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    HookBase,
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    params_to_procedure_conversion,
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)
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from tmtccmd.config.com import SerialCfgWrapper
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from tmtccmd.config import PreArgsParsingWrapper, SetupWrapper
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from tmtccmd.logging.pus import (
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    RegularTmtcLogWrapper,
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    RawTmtcTimedLogWrapper,
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    TimedLogWhen,
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)
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from tmtccmd.tmtc import (
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    TcQueueEntryType,
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    ProcedureWrapper,
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    TcProcedureType,
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    FeedWrapper,
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    SendCbParams,
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    DefaultPusQueueHelper,
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)
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from tmtccmd.pus.s5_fsfw_event import Service5Tm
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from spacepackets.seqcount import FileSeqCountProvider, PusFileSeqCountProvider
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from tmtccmd.util.obj_id import ObjectIdDictT
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_LOGGER = logging.getLogger()
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EXAMPLE_PUS_APID = 0x02
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class SatRsConfigHook(HookBase):
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    def __init__(self, json_cfg_path: str):
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        super().__init__(json_cfg_path)
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    def get_communication_interface(self, com_if_key: str) -> Optional[ComInterface]:
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        from tmtccmd.config.com import (
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            create_com_interface_default,
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            create_com_interface_cfg_default,
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        )
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        assert self.cfg_path is not None
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        cfg = create_com_interface_cfg_default(
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            com_if_key=com_if_key,
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            json_cfg_path=self.cfg_path,
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            space_packet_ids=None,
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        )
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        if cfg is None:
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            raise ValueError(
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                f"No valid configuration could be retrieved for the COM IF with key {com_if_key}"
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            )
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        if cfg.com_if_key == "serial_cobs":
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            cfg = cast(SerialCfgWrapper, cfg)
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            cfg.serial_cfg.serial_timeout = 0.5
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        return create_com_interface_default(cfg)
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    def get_command_definitions(self) -> CmdTreeNode:
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        """This function should return the root node of the command definition tree."""
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        return create_cmd_definition_tree()
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    def get_cmd_history(self) -> Optional[History]:
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        """Optionlly return a history class for the past command paths which will be used
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        when prompting a command path from the user in CLI mode."""
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        return FileHistory(".tmtc-history.txt")
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    def get_object_ids(self) -> ObjectIdDictT:
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        from tmtccmd.config.objects import get_core_object_ids
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        return get_core_object_ids()
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def create_cmd_definition_tree() -> CmdTreeNode:
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    root_node = CmdTreeNode.root_node()
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    root_node.add_child(CmdTreeNode("ping", "Send PUS ping TC"))
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    root_node.add_child(CmdTreeNode("change_blink_freq", "Change blink frequency"))
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    return root_node
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class PusHandler(SpecificApidHandlerBase):
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    def __init__(
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        self,
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        file_logger: logging.Logger,
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        verif_wrapper: VerificationWrapper,
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        raw_logger: RawTmtcTimedLogWrapper,
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    ):
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        super().__init__(EXAMPLE_PUS_APID, None)
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        self.file_logger = file_logger
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        self.raw_logger = raw_logger
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        self.verif_wrapper = verif_wrapper
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    def handle_tm(self, packet: bytes, _user_args: Any):
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        try:
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            pus_tm = PusTm.unpack(
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                packet, timestamp_len=CdsShortTimestamp.TIMESTAMP_SIZE
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            )
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        except ValueError as e:
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            _LOGGER.warning("Could not generate PUS TM object from raw data")
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            _LOGGER.warning(f"Raw Packet: [{packet.hex(sep=',')}], REPR: {packet!r}")
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            raise e
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        service = pus_tm.service
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        tm_packet = None
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        if service == 1:
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            tm_packet = Service1Tm.unpack(
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                data=packet, params=UnpackParams(CdsShortTimestamp.TIMESTAMP_SIZE, 1, 2)
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            )
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            res = self.verif_wrapper.add_tm(tm_packet)
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            if res is None:
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                _LOGGER.info(
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                    f"Received Verification TM[{tm_packet.service}, {tm_packet.subservice}] "
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                    f"with Request ID {tm_packet.tc_req_id.as_u32():#08x}"
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                )
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                _LOGGER.warning(
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                    f"No matching telecommand found for {tm_packet.tc_req_id}"
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                )
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            else:
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                self.verif_wrapper.log_to_console(tm_packet, res)
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                self.verif_wrapper.log_to_file(tm_packet, res)
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        if service == 3:
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            _LOGGER.info("No handling for HK packets implemented")
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            _LOGGER.info(f"Raw packet: 0x[{packet.hex(sep=',')}]")
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            pus_tm = PusTelemetry.unpack(packet, CdsShortTimestamp.TIMESTAMP_SIZE)
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            if pus_tm.subservice == 25:
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                if len(pus_tm.source_data) < 8:
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                    raise ValueError("No addressable ID in HK packet")
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                json_str = pus_tm.source_data[8:]
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                _LOGGER.info("received JSON string: " + json_str.decode("utf-8"))
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        if service == 5:
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            tm_packet = Service5Tm.unpack(packet, CdsShortTimestamp.TIMESTAMP_SIZE)
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        if service == 17:
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            tm_packet = Service17Tm.unpack(packet, CdsShortTimestamp.TIMESTAMP_SIZE)
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            if tm_packet.subservice == 2:
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                _LOGGER.info("Received Ping Reply TM[17,2]")
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            else:
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                _LOGGER.info(
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                    f"Received Test Packet with unknown subservice {tm_packet.subservice}"
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                )
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        if tm_packet is None:
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            _LOGGER.info(
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                f"The service {service} is not implemented in Telemetry Factory"
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            )
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            tm_packet = PusTelemetry.unpack(packet, CdsShortTimestamp.TIMESTAMP_SIZE)
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        self.raw_logger.log_tm(pus_tm)
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def make_addressable_id(target_id: int, unique_id: int) -> bytes:
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    byte_string = bytearray(struct.pack("!I", target_id))
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    byte_string.extend(struct.pack("!I", unique_id))
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    return byte_string
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class TcHandler(TcHandlerBase):
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    def __init__(
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        self,
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        seq_count_provider: FileSeqCountProvider,
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        verif_wrapper: VerificationWrapper,
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    ):
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        super(TcHandler, self).__init__()
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        self.seq_count_provider = seq_count_provider
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        self.verif_wrapper = verif_wrapper
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        self.queue_helper = DefaultPusQueueHelper(
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            queue_wrapper=QueueWrapper.empty(),
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            tc_sched_timestamp_len=7,
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            seq_cnt_provider=seq_count_provider,
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            pus_verificator=verif_wrapper.pus_verificator,
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            default_pus_apid=EXAMPLE_PUS_APID,
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        )
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    def send_cb(self, send_params: SendCbParams):
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        entry_helper = send_params.entry
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        if entry_helper.is_tc:
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            if entry_helper.entry_type == TcQueueEntryType.PUS_TC:
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                pus_tc_wrapper = entry_helper.to_pus_tc_entry()
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                pus_tc_wrapper.pus_tc.seq_count = (
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                    self.seq_count_provider.get_and_increment()
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                )
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                self.verif_wrapper.add_tc(pus_tc_wrapper.pus_tc)
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                raw_tc = pus_tc_wrapper.pus_tc.pack()
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                _LOGGER.info(f"Sending {pus_tc_wrapper.pus_tc}")
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                send_params.com_if.send(raw_tc)
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        elif entry_helper.entry_type == TcQueueEntryType.LOG:
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            log_entry = entry_helper.to_log_entry()
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            _LOGGER.info(log_entry.log_str)
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    def queue_finished_cb(self, info: ProcedureWrapper):
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        if info.proc_type == TcProcedureType.TREE_COMMANDING:
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            def_proc = info.to_tree_commanding_procedure()
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            _LOGGER.info(f"Queue handling finished for command {def_proc.cmd_path}")
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    def feed_cb(self, info: ProcedureWrapper, wrapper: FeedWrapper):
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        q = self.queue_helper
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        q.queue_wrapper = wrapper.queue_wrapper
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        if info.proc_type == TcProcedureType.TREE_COMMANDING:
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            def_proc = info.to_tree_commanding_procedure()
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            cmd_path = def_proc.cmd_path
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            if cmd_path == "/ping":
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                q.add_log_cmd("Sending PUS ping telecommand")
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                q.add_pus_tc(PusTelecommand(service=17, subservice=1))
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            if cmd_path == "/change_blink_freq":
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                self.create_change_blink_freq_command(q)
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    def create_change_blink_freq_command(self, q: DefaultPusQueueHelper):
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        q.add_log_cmd("Changing blink frequency")
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        while True:
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            blink_freq = int(
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                input(
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                    "Please specify new blink frequency in ms. Valid Range [2..10000]: "
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                )
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            )
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            if blink_freq < 2 or blink_freq > 10000:
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                print(
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                    "Invalid blink frequency. Please specify a value between 2 and 10000."
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                )
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                continue
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            break
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        app_data = struct.pack("!I", blink_freq)
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        q.add_pus_tc(PusTelecommand(service=8, subservice=1, app_data=app_data))
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def main():
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    add_colorlog_console_logger(_LOGGER)
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    tmtccmd.init_printout(False)
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    hook_obj = SatRsConfigHook(json_cfg_path=default_json_path())
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    parser_wrapper = PreArgsParsingWrapper()
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    parser_wrapper.create_default_parent_parser()
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    parser_wrapper.create_default_parser()
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    parser_wrapper.add_def_proc_args()
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    params = SetupParams()
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    post_args_wrapper = parser_wrapper.parse(hook_obj, params)
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    proc_wrapper = ProcedureParamsWrapper()
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    if post_args_wrapper.use_gui:
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        post_args_wrapper.set_params_without_prompts(proc_wrapper)
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    else:
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        post_args_wrapper.set_params_with_prompts(proc_wrapper)
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    params.apid = EXAMPLE_PUS_APID
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    setup_args = SetupWrapper(
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        hook_obj=hook_obj, setup_params=params, proc_param_wrapper=proc_wrapper
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    )
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    # Create console logger helper and file loggers
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    tmtc_logger = RegularTmtcLogWrapper()
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    file_logger = tmtc_logger.logger
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    raw_logger = RawTmtcTimedLogWrapper(when=TimedLogWhen.PER_HOUR, interval=1)
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    verificator = PusVerificator()
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    verification_wrapper = VerificationWrapper(verificator, _LOGGER, file_logger)
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    # Create primary TM handler and add it to the CCSDS Packet Handler
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    tm_handler = PusHandler(file_logger, verification_wrapper, raw_logger)
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    ccsds_handler = CcsdsTmHandler(generic_handler=None)
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    ccsds_handler.add_apid_handler(tm_handler)
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    # Create TC handler
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    seq_count_provider = PusFileSeqCountProvider()
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    tc_handler = TcHandler(seq_count_provider, verification_wrapper)
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    tmtccmd.setup(setup_args=setup_args)
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    init_proc = params_to_procedure_conversion(setup_args.proc_param_wrapper)
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    tmtc_backend = tmtccmd.create_default_tmtc_backend(
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        setup_wrapper=setup_args,
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        tm_handler=ccsds_handler,
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        tc_handler=tc_handler,
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        init_procedure=init_proc,
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    )
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    tmtccmd.start(tmtc_backend=tmtc_backend, hook_obj=hook_obj)
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    try:
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        while True:
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            state = tmtc_backend.periodic_op(None)
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            if state.request == BackendRequest.TERMINATION_NO_ERROR:
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                sys.exit(0)
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            elif state.request == BackendRequest.DELAY_IDLE:
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                _LOGGER.info("TMTC Client in IDLE mode")
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                time.sleep(3.0)
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            elif state.request == BackendRequest.DELAY_LISTENER:
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                time.sleep(0.8)
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            elif state.request == BackendRequest.DELAY_CUSTOM:
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                if state.next_delay.total_seconds() <= 0.4:
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                    time.sleep(state.next_delay.total_seconds())
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                else:
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                    time.sleep(0.4)
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            elif state.request == BackendRequest.CALL_NEXT:
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                pass
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    except KeyboardInterrupt:
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        sys.exit(0)
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if __name__ == "__main__":
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    main()
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