code wiki / _hdl_build / nx_hostop_watchdog_gate.nx
`nx_hostop_watchdog_gate.nx` source

1// nx_hostop_watchdog_gate.nx -- R12 PROOF: the host-operator watchdogs the publisher daemon. Fresh heartbeat -> no
2// action; stale (hung) -> restart command; missing (not running) -> launch command. The full supervised lifecycle,
3// composing pub_daemon_hb_age + hostop_supervise_cmd. File-based. license_tier: ORIGINAL  expect_exit: 0
4import "nx_syscalls.nx"
5import "nx_hostop.nx"
6import "nx_runpath.nx"
7
8func g_w(s: *u8) -> i64 { var n: i64=0; while s[n]!=(0 as u8){n=n+1} sys_write(1,s,n); return 0 }
9func g_n(v: i64) -> i64 { var m: i64=v; if m<0{g_w("-" as *u8);m=0-m} let t:*u8=sys_mmap(24); var k:i64=0; if m==0{t[0]=48 as u8;k=1} while m>0{t[k]=(48+(m%10)) as u8;m=m/10;k=k+1} var i:i64=0; let o:*u8=sys_mmap(24); while i<k{o[i]=t[k-1-i];i=i+1} sys_write(1,o,k); return 0 }
10func g_row(id: *u8, ok: i64, pass: *i64) -> i64 { g_w("  " as *u8); g_w(id); g_w(": " as *u8); if ok==1 { g_w("OK\n" as *u8); pass[0]=pass[0]+1 } else { g_w("FAIL\n" as *u8) } return 0 }
11func g_unlink(path: *u8) -> i64 { __syscall(87, path as i64, 0, 0, 0, 0, 0); return 0 }
12
13func main() -> i64 {
14    let pass: *i64 = sys_mmap(8) as *i64; pass[0]=0
15    g_w("=== NX-HOSTOP-WATCHDOG GATE (host-operator watchdogs the publisher daemon) ===\n" as *u8)
16    let wsid: *u8 = sys_mmap(64); rp_wsid(wsid); rp_ensure(wsid)
17    let D: *u8 = sys_mmap(512); rp_path(wsid, "hwd" as *u8, D); __syscall(83, D as i64, 493, 0, 0, 0, 0)
18    let hb: *u8 = sys_mmap(700); pub_join(D, "daemon.hb" as *u8, hb); g_unlink(hb)
19    let dmn: *u8 = "nx_pub_daemon.elf" as *u8
20    let out: *u8 = sys_mmap(256)
21
22    let hbe: i64 = pub_daemon_heartbeat(hb)                       // fresh heartbeat now
23    let fresh: i64 = hostop_watchdog(hb, dmn, 30, hbe, out)       // age 0 < 30 -> healthy -> 0
24    let stale: i64 = hostop_watchdog(hb, dmn, 30, hbe + 100, out) // age 100 > 30 -> hung -> restart
25    let stale_cmd: i64 = (pub_substr(out, 255, "startsite" as *u8)) & (pub_substr(out, 255, "nx_pub_daemon.elf" as *u8))
26    g_unlink(hb)
27    let missing: i64 = hostop_watchdog(hb, dmn, 30, hbe, out)     // no heartbeat -> not running -> launch
28    let missing_cmd: i64 = pub_substr(out, 255, "startsite" as *u8)
29
30    g_w("  fresh=" as *u8); g_n(fresh); g_w(" (0=healthy)  stale=" as *u8); g_n(stale); g_w(" missing=" as *u8); g_n(missing); g_w("  cmd='" as *u8); g_w(out); g_w("'\n" as *u8)
31    g_row("WATCHDOG: fresh heartbeat -> no action (healthy, 0)" as *u8, (fresh==0) as i64, pass)
32    g_row("WATCHDOG: STALE heartbeat (hung) -> restart command (1 + startsite + daemon)" as *u8, ((stale==1) as i64) & stale_cmd, pass)
33    g_row("WATCHDOG: MISSING heartbeat (not running) -> launch command (1)" as *u8, ((missing==1) as i64) & missing_cmd, pass)
34
35    g_w("NX-HOSTOP-WATCHDOG rows=3 pass=" as *u8); g_n(pass[0])
36    if pass[0]==3 { g_w(" verdict=GREEN\n" as *u8); sys_exit(0); return 0 }
37    g_w(" verdict=RED\n" as *u8); sys_exit(1); return 1
38}
nx_hostop_watchdog_gate.nx source

`nx_hostop_watchdog_gate.nx` source
