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5e0b58b | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 | """System-state sensor with an injectable provider for reproducible studies."""
from __future__ import annotations
import os
import platform
from collections.abc import Callable, Mapping
from dataclasses import dataclass
from time import time
from typing import Any, cast
import psutil
from .interoception import InteroceptionFrame, normalize_vital_signals
from .models import JSONValue, SensorFrame
SystemReadings = Callable[[int], Mapping[str, JSONValue]]
@dataclass(slots=True)
class SystemSensorAdapter:
"""Publish host measurements as a typed sensor frame.
The provider is deliberately injected: production may read host metrics,
while experiments can supply a deterministic trace without hidden inputs.
"""
provider: SystemReadings
_active: bool = True
sensor_id: str = "system-state-v1"
modality: str = "system"
@property
def active(self) -> bool:
return self._active
def sample(self, tick: int) -> SensorFrame:
if tick < 0:
raise ValueError("tick must be >= 0")
payload = dict(self.provider(tick))
return SensorFrame(
sensor_id=self.sensor_id,
tick=tick,
modality=self.modality,
payload=payload,
)
def sample_interoception(self, tick: int) -> InteroceptionFrame:
"""Return typed body-relevant signals for the same deterministic sample."""
frame = self.sample(tick)
if not isinstance(frame.payload, dict):
raise TypeError("system sensor provider must return a mapping")
return InteroceptionFrame(
tick=tick, signals=normalize_vital_signals(frame.payload)
)
def wall_clock_readings(tick: int) -> Mapping[str, JSONValue]:
"""Return the minimal live provider; richer metrics remain opt-in."""
return {"tick": tick, "unix_time": time()}
def _temperature_readings() -> tuple[float | None, dict[str, JSONValue]]:
reader = getattr(psutil, "sensors_temperatures", None)
raw = cast(dict[str, list[Any]], reader() if callable(reader) else {})
groups: dict[str, JSONValue] = {}
first: float | None = None
for group, entries in raw.items():
values: list[JSONValue] = []
for entry in entries:
current = getattr(entry, "current", None)
if first is None and isinstance(current, (int, float)):
first = float(current)
values.append(
{
"label": str(getattr(entry, "label", "") or ""),
"current_c": (
float(current) if isinstance(current, (int, float)) else None
),
"high_c": (
float(getattr(entry, "high"))
if isinstance(getattr(entry, "high", None), (int, float))
else None
),
"critical_c": (
float(getattr(entry, "critical"))
if isinstance(getattr(entry, "critical", None), (int, float))
else None
),
}
)
groups[str(group)] = values
return first, groups
def _fan_readings() -> tuple[float | None, dict[str, JSONValue]]:
reader = getattr(psutil, "sensors_fans", None)
raw = cast(Mapping[str, list[Any]], reader() if callable(reader) else {})
groups: dict[str, JSONValue] = {}
first: float | None = None
for group, entries in raw.items():
values: list[JSONValue] = []
for entry in entries:
current = getattr(entry, "current", None)
if first is None and isinstance(current, (int, float)):
first = float(current)
values.append(
{
"label": str(getattr(entry, "label", "") or ""),
"rpm": (
float(current) if isinstance(current, (int, float)) else None
),
}
)
groups[str(group)] = values
return first, groups
def _network_interfaces() -> dict[str, JSONValue]:
stats = psutil.net_if_stats()
addresses = psutil.net_if_addrs()
result: dict[str, JSONValue] = {}
for name in sorted(set(stats) | set(addresses)):
status = stats.get(name)
result[name] = {
"is_up": bool(status.isup) if status is not None else None,
"speed_mbps": int(status.speed) if status is not None else None,
"mtu": int(status.mtu) if status is not None else None,
"addresses": [
{
"family": str(address.family),
"address": str(address.address),
"netmask": str(address.netmask) if address.netmask else None,
}
for address in addresses.get(name, [])
],
}
return result
def host_system_readings(tick: int) -> Mapping[str, JSONValue]:
"""Read real host state without contacting external services.
Unsupported operating-system sensors remain ``None`` or empty mappings;
this function never manufactures substitute values for missing hardware.
"""
temperature, temperatures = _temperature_readings()
fan_rpm, fans = _fan_readings()
memory = psutil.virtual_memory()
swap = psutil.swap_memory()
disk = psutil.disk_usage(os.path.abspath(os.sep))
disk_io = psutil.disk_io_counters()
network_io = psutil.net_io_counters()
interfaces = _network_interfaces()
network_up = any(
bool(value.get("is_up"))
for value in interfaces.values()
if isinstance(value, dict)
)
battery_reader = getattr(psutil, "sensors_battery", None)
battery = cast(Any, battery_reader() if callable(battery_reader) else None)
frequency = cast(Any, psutil.cpu_freq())
per_cpu = psutil.cpu_percent(interval=None, percpu=True)
load_average_reader = cast(
Callable[[], tuple[float, float, float]] | None,
getattr(os, "getloadavg", None),
)
try:
load_average: JSONValue = (
[float(value) for value in load_average_reader()]
if callable(load_average_reader)
else None
)
except OSError:
load_average = None
return {
"tick": tick,
"unix_time": time(),
"platform": platform.system(),
"platform_release": platform.release(),
"machine": platform.machine(),
"processor": platform.processor() or None,
"hostname": platform.node() or None,
"boot_time": psutil.boot_time(),
"cpu_percent": psutil.cpu_percent(interval=None),
"cpu_percent_per_core": [float(value) for value in per_cpu],
"cpu_logical_count": psutil.cpu_count(logical=True),
"cpu_physical_count": psutil.cpu_count(logical=False),
"cpu_frequency_mhz": (
float(frequency.current) if frequency is not None else None
),
"cpu_frequency_min_mhz": (
float(frequency.min) if frequency is not None else None
),
"cpu_frequency_max_mhz": (
float(frequency.max) if frequency is not None else None
),
"load_average": load_average,
"memory_percent": memory.percent,
"memory_total_bytes": memory.total,
"memory_available_bytes": memory.available,
"memory_used_bytes": memory.used,
"swap_percent": swap.percent,
"swap_total_bytes": swap.total,
"swap_used_bytes": swap.used,
"temperature_c": temperature,
"temperatures": temperatures,
"disk_total_bytes": disk.total,
"disk_used_bytes": disk.used,
"disk_free_bytes": disk.free,
"disk_percent": disk.percent,
"disk_read_bytes": disk_io.read_bytes if disk_io is not None else None,
"disk_write_bytes": disk_io.write_bytes if disk_io is not None else None,
"disk_read_count": disk_io.read_count if disk_io is not None else None,
"disk_write_count": disk_io.write_count if disk_io is not None else None,
"network_up": network_up,
"network_interfaces": interfaces,
"network_bytes_sent": network_io.bytes_sent,
"network_bytes_received": network_io.bytes_recv,
"network_packets_sent": network_io.packets_sent,
"network_packets_received": network_io.packets_recv,
"network_errors_in": network_io.errin,
"network_errors_out": network_io.errout,
"battery_percent": battery.percent if battery is not None else None,
"battery_plugged": battery.power_plugged if battery is not None else None,
"battery_seconds_left": battery.secsleft if battery is not None else None,
"fan_rpm": fan_rpm,
"fans": fans,
"process_count": len(psutil.pids()),
}
__all__ = [
"InteroceptionFrame",
"SystemReadings",
"SystemSensorAdapter",
"host_system_readings",
"wall_clock_readings",
]
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