WIP: snapstore logging

Agoric · May 19, 2021 · 18e7e44 · 18e7e44
1 parent de77415
commit 18e7e44
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diff --git a/packages/SwingSet/src/controller.js b/packages/SwingSet/src/controller.js
@@ -51,6 +51,8 @@ function unhandledRejectionHandler(e) {
  * }} opts
  */
 export function makeStartXSnap(bundles, { snapStore, env, spawn }) {
+  console.log('@@makeStartXSnap', { snapStore });
+  console.error('@@makeStartXSnap trace', Error());
   /** @type { import('@agoric/xsnap/src/xsnap').XSnapOptions } */
   const xsnapOpts = {
     os: osType(),
@@ -68,12 +70,14 @@ export function makeStartXSnap(bundles, { snapStore, env, spawn }) {
    */
   async function startXSnap(name, handleCommand, metered) {
     if (supervisorHash && snapStore) {
+      console.log('@@startXSnap from', { supervisorHash });
       return snapStore.load(supervisorHash, async snapshot => {
         const xs = xsnap({ snapshot, name, handleCommand, ...xsnapOpts });
         await xs.evaluate('null'); // ensure that spawn is done
         return xs;
       });
     }
+    console.log('@@fresh xsnap', { snapstore: snapStore });
     const meterOpts = metered ? {} : { meteringLimit: 0 };
     const worker = xsnap({ handleCommand, name, ...meterOpts, ...xsnapOpts });
 
@@ -87,6 +91,7 @@ export function makeStartXSnap(bundles, { snapStore, env, spawn }) {
     }
     if (snapStore) {
       supervisorHash = await snapStore.save(async fn => worker.snapshot(fn));
+      console.log('@@startXSnap saved to', { supervisorHash });
     }
     return worker;
   }

diff --git a/packages/xsnap/src/snapStore.js b/packages/xsnap/src/snapStore.js
@@ -101,6 +101,7 @@ export function makeSnapstore(
     return withTempName(async snapFile => {
       await saveRaw(snapFile);
       const h = await fileHash(snapFile);
+      console.log('@@@save', { snapFile, h });
       if (existsSync(`${h}.gz`)) return h;
       await atomicWrite(`${h}.gz`, gztmp =>
         filter(snapFile, createGzip(), gztmp),
@@ -118,6 +119,7 @@ export function makeSnapstore(
     return withTempName(async raw => {
       await filter(resolve(root, `${hash}.gz`), createGunzip(), raw);
       const actual = await fileHash(raw);
+      console.log('@@@load', { raw, hash });
       assert(actual === hash, d`actual hash ${actual} !== expected ${hash}`);
       // be sure to await loadRaw before exiting withTempName
       const result = await loadRaw(raw);