File size: 8,442 Bytes
eb3f11e | 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 | import { createHash, randomUUID } from "node:crypto";
import { resolveUpdateInstallRoot } from "../../infra/update-install-root.js";
import type { ManagedUpdateLeaseDatabaseIdentity } from "../../infra/update-managed-service-handoff-database.js";
import {
createManagedHandoffLeaseStore,
type ManagedHandoffLease,
} from "../../infra/update-managed-service-handoff-lease.js";
import { UpdateCommandRecoveryPendingError } from "./update-command-recovery.js";
/** Private correlation sent only to the spawned candidate's stdin. The receiver
* independently reads both live owners and checks its own PID/start identity. */
export type UpdateCommandChildGrant = {
runId: string;
root: string;
databasePath: string;
parent: ManagedHandoffLease;
/** Original owner and its lineage survive a package-generation change. */
originalParent?: ManagedHandoffLease;
originalChildKey?: string;
spawner?: ManagedHandoffLease;
childKey: string;
databaseIdentity?: ManagedUpdateLeaseDatabaseIdentity;
};
export type ChildOperation<T> = (
grant: UpdateCommandChildGrant,
bindChild: (pid: number, argv?: readonly string[]) => void,
) => Promise<T>;
// Correlate the transported lineage with the spawning owner's recorded child
// names. This is not another credential: live rows and PID/start checks still
// authorize the receiver. A mirror cannot be substituted for its original root.
export function childLineageDigest(
original: ManagedHandoffLease,
spawner: ManagedHandoffLease,
parent: ManagedHandoffLease,
database: ManagedUpdateLeaseDatabaseIdentity,
): string {
return createHash("sha256")
.update(
JSON.stringify([
database.databasePath,
database.databaseIdentity,
database.parentIdentity,
[original, spawner, parent].map((lease) => [
lease.key,
lease.owner,
lease.payload,
lease.updatedAt,
]),
]),
)
.digest("hex");
}
/** One child interval, shared by direct and delegated executors. */
export function createChildOwner(params: {
runId: string;
binding: () => {
store: ReturnType<typeof createManagedHandoffLeaseStore>;
parent: ManagedHandoffLease;
original: ManagedHandoffLease;
spawner: ManagedHandoffLease;
databasePath: string;
databaseIdentity?: ManagedUpdateLeaseDatabaseIdentity;
};
assertBase: () => void;
onStart?: () => void;
}) {
let admissionOpen = true;
let delegating = false;
let pending: Promise<unknown> | undefined;
let failure: Error | undefined;
const assertIdle = () => {
if (delegating) {
throw new UpdateCommandRecoveryPendingError(
"Parent executor is suspended for its candidate.",
);
}
};
return {
assertIdle,
get pending() {
return pending;
},
close() {
admissionOpen = false;
},
async settle() {
await pending;
if (failure) {
throw failure;
}
},
run<T>(root: string, operation: ChildOperation<T>): Promise<T> {
params.assertBase();
assertIdle();
if (!admissionOpen) {
throw new UpdateCommandRecoveryPendingError("Child executor admission is closed.");
}
const { store, parent, original, spawner, databasePath, databaseIdentity } = params.binding();
if (!databaseIdentity) {
throw new UpdateCommandRecoveryPendingError(
"Native child requires its pinned lease database.",
);
}
params.onStart?.();
const candidateRoot = resolveUpdateInstallRoot(root);
let candidateParent = parent;
let acquiredParent = false;
const children: ManagedHandoffLease[] = [];
let bound = false;
delegating = true;
const assertOwners = () => {
params.assertBase();
if (
!store.current(candidateParent) ||
resolveUpdateInstallRoot(root) !== candidateParent.key
) {
throw new UpdateCommandRecoveryPendingError("Candidate installation ownership changed.");
}
};
const running = async () => {
let outcome: { result: T } | { error: unknown };
try {
params.assertBase();
if (candidateRoot !== parent.key) {
const acquired = store.acquire(candidateRoot, randomUUID(), { kind: "update" });
if (acquired.kind !== "acquired") {
throw new UpdateCommandRecoveryPendingError(
"Another update executor owns the candidate installation.",
);
}
candidateParent = acquired.lease;
acquiredParent = true;
}
assertOwners();
// Keep the full original spawner lineage AND the active generation.
// Neither root may be reclaimed while a nested process group survives.
const parents =
candidateParent.key === original.key ? [spawner] : [spawner, candidateParent];
const childName = `${randomUUID()}-lineage-${childLineageDigest(original, spawner, candidateParent, databaseIdentity)}`;
for (const childParent of parents) {
const acquired = store.acquire(
`${childParent.key}/.openclaw-update-child-${childName}`,
params.runId,
{ kind: "update" },
);
if (acquired.kind !== "acquired") {
throw new UpdateCommandRecoveryPendingError(
"Candidate lifetime could not be acquired.",
);
}
children.push(acquired.lease);
}
const grant: UpdateCommandChildGrant = {
runId: params.runId,
root: candidateParent.key,
databasePath,
parent: candidateParent,
originalParent: original,
spawner,
originalChildKey: children[0]!.key,
childKey: children[children.length - 1]!.key,
databaseIdentity,
};
const result = await operation(grant, (pid, argv) => {
assertOwners();
if (bound || pid === process.pid) {
throw new UpdateCommandRecoveryPendingError(
"Candidate process can be bound only once.",
);
}
for (let index = 0; index < children.length; index++) {
const assigned = store.bind(children[index]!, pid, undefined, argv);
if (!assigned) {
throw new UpdateCommandRecoveryPendingError("Candidate process binding failed.");
}
children[index] = assigned;
}
bound = true;
});
if (!bound) {
throw new UpdateCommandRecoveryPendingError(
"Candidate continuation did not bind a process.",
);
}
assertOwners();
outcome = { result };
} catch (error) {
outcome = { error };
}
try {
// Release the active generation before the original lineage, as in
// the shipped finalizer. A failed release never reactivates the parent.
if (children.length > 1 && !store.release(children[1]!)) {
throw new UpdateCommandRecoveryPendingError("Candidate executor has not settled.");
}
if (acquiredParent && !store.release(candidateParent)) {
throw new UpdateCommandRecoveryPendingError("Candidate installation release failed.");
}
if (children.length > 0 && !store.release(children[0]!)) {
throw new UpdateCommandRecoveryPendingError("Candidate executor has not settled.");
}
delegating = false;
} catch (cause) {
if ("error" in outcome) {
throw new AggregateError(
[outcome.error, cause],
"Candidate and its executor cleanup failed",
{ cause },
);
}
throw cause;
}
if ("error" in outcome) {
throw outcome.error;
}
return outcome.result;
};
const work = Promise.resolve().then(running);
pending = work;
void work
.catch((cause: unknown) => {
failure = cause instanceof Error ? cause : new Error("Candidate failed", { cause });
})
.finally(() => {
if (pending === work) {
pending = undefined;
}
});
return work;
},
};
}
|