35 lines
1.0 KiB
Nim
35 lines
1.0 KiB
Nim
# Watchdog Fiber - Logic Core Immune System
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const MAX_PAUSE_TICKS = 1_000_000'u64
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# Import timer from HAL (Exposed via abi.zig)
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proc cpu_ticks(): uint64 {.importc: "rumpk_timer_now_ns", cdecl.}
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proc watchdog_loop() {.cdecl.} =
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## Fiber 0: The Immune System
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# Note: Uses globals from kernel.nim via 'include'
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kprintln("[Watchdog] Immune System Online.")
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while true:
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# Check if network is stuck in PAUSE state
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if net_paused:
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let now = cpu_ticks()
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# If paused and time exceeds threshold
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# Note: pause_start needs to be set when pausing!
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if (pause_start > 0) and (now > pause_start) and (now - pause_start >
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MAX_PAUSE_TICKS):
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# HEAL
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kprint("[IMMUNE] Network paused too long. Forcing RESUME.\n")
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net_paused = false
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pause_start = 0
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# Send CMD_NET_START to the Control Loop
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var cmd = CmdPacket(kind: uint32(ion.CmdType.CMD_NET_START), arg: 0)
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chan_cmd.send(cmd)
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# Cooperative Multitasking: Must yield!
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fiber_yield()
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# asm "wfi"
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