69 lines
3.3 KiB
Python
69 lines
3.3 KiB
Python
"""
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tdma.py: EMANE TDMA model bindings for CORE
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"""
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import os
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from core import constants
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from core import logger
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from core.emane import emanemodel
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from core.enumerations import ConfigDataTypes
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from core.misc import utils
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class EmaneTdmaModel(emanemodel.EmaneModel):
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# model name
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name = "emane_tdma"
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library = "tdmaeventschedulerradiomodel"
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# mac configuration
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xml_path = "/usr/share/emane/xml/models/mac/tdmaeventscheduler"
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schedule_name = "schedule"
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default_schedule = os.path.join(constants.CORE_DATA_DIR, "examples", "tdma", "schedule.xml")
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config_ignore = {schedule_name}
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_config_mac = [
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(schedule_name, ConfigDataTypes.STRING.value, default_schedule, "", "TDMA schedule file"),
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("enablepromiscuousmode", ConfigDataTypes.BOOL.value, "0", "True,False", "enable promiscuous mode"),
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("flowcontrolenable", ConfigDataTypes.BOOL.value, "0", "On,Off", "enable traffic flow control"),
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("flowcontroltokens", ConfigDataTypes.UINT16.value, "10", "", "number of flow control tokens"),
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("fragmentcheckthreshold", ConfigDataTypes.UINT16.value, "2", "",
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"rate in seconds for check if fragment reassembly efforts should be abandoned"),
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("fragmenttimeoutthreshold", ConfigDataTypes.UINT16.value, "5", "",
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"threshold in seconds to wait for another packet fragment for reassembly"),
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("neighbormetricdeletetime", ConfigDataTypes.FLOAT.value, "60.0", "",
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"neighbor RF reception timeout for removal from neighbor table (sec)"),
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("neighbormetricupdateinterval", ConfigDataTypes.FLOAT.value, "1.0", "",
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"neighbor table update interval (sec)"),
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("pcrcurveuri", ConfigDataTypes.STRING.value, "%s/tdmabasemodelpcr.xml" % xml_path, "", "SINR/PCR curve file"),
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("queue.aggregationenable", ConfigDataTypes.BOOL.value, "1", "On,Off", "enable transmit packet aggregation"),
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("queue.aggregationslotthreshold", ConfigDataTypes.FLOAT.value, "90.0", "",
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"percentage of a slot that must be filled in order to conclude aggregation"),
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("queue.depth", ConfigDataTypes.UINT16.value, "256", "",
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"size of the per service class downstream packet queues (packets)"),
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("queue.fragmentationenable", ConfigDataTypes.BOOL.value, "1", "On,Off",
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"enable packet fragmentation (over multiple slots)"),
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("queue.strictdequeueenable", ConfigDataTypes.BOOL.value, "0", "On,Off",
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"enable strict dequeueing to specified queues only"),
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]
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config_matrix = _config_mac + emanemodel.EmaneModel._config_phy
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config_groups = emanemodel.create_config_groups(_config_mac, config_matrix)
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def post_startup(self, emane_manager):
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"""
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Logic to execute after the emane manager is finished with startup.
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:param core.emane.emanemanager.EmaneManager emane_manager: emane manager for the session
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:return: nothing
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"""
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# get configured schedule
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values = emane_manager.getconfig(self.object_id, self.name, self.getdefaultvalues())[1]
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if values is None:
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return
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schedule = self.valueof(self.schedule_name, values)
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event_device = emane_manager.event_device
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# initiate tdma schedule
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logger.info("setting up tdma schedule: schedule(%s) device(%s)", schedule, event_device)
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utils.check_cmd(["emaneevent-tdmaschedule", "-i", event_device, schedule])
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