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| 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 | 20x 1x 3x 2x 2x 3x 3x 3x 2x | import { makeDefaultExo } from '@metamask/kernel-utils/exo';
import type { Kernel, ClusterConfig, KRef, VatId } from '@metamask/ocap-kernel';
import type { KernelFacade, LaunchResult } from '../../types.ts';
export type { KernelFacade } from '../../types.ts';
/**
* Create the kernel facade exo that exposes kernel methods via CapTP.
*
* @param kernel - The kernel instance to wrap.
* @returns The kernel facade exo.
*/
export function makeKernelFacade(kernel: Kernel): KernelFacade {
return makeDefaultExo('KernelFacade', {
ping: async () => 'pong' as const,
launchSubcluster: async (config: ClusterConfig): Promise<LaunchResult> => {
const { subclusterId, bootstrapRootKref } =
await kernel.launchSubcluster(config);
return { subclusterId, rootKref: bootstrapRootKref };
},
terminateSubcluster: async (subclusterId: string) => {
return kernel.terminateSubcluster(subclusterId);
},
queueMessage: async (target: KRef, method: string, args: unknown[]) => {
return kernel.queueMessage(target, method, args);
},
getStatus: async () => {
return kernel.getStatus();
},
pingVat: async (vatId: VatId) => {
return kernel.pingVat(vatId);
},
getVatRoot: async (krefString: string) => {
// Return wrapped kref for future CapTP marshalling to presence
// TODO: Enable custom CapTP marshalling tables to convert this to a presence
return { kref: krefString };
},
});
}
harden(makeKernelFacade);
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