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gc massage

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ed 2022-08-18 18:03:33 +02:00
parent a900c36395
commit b69a563fc2
1 changed files with 16 additions and 1 deletions
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17
copyparty/web/w.hash.js
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@ -24,6 +24,7 @@ function load_fb() {
var reader = null, var reader = null,
gc1, gc2, gc3,
busy = false; busy = false;
@ -39,9 +40,14 @@ onmessage = (d) => {
reader.onload = function (e) { reader.onload = function (e) {
try { try {
// chrome gc forgets the filereader output; remind it
gc1 = e.target.result;
gc2 = new Uint8Array(gc1, 0, 1);
gc3 = new Uint8Array(gc1, gc1.byteLength - 1);
//console.log('[ w] %d HASH bgin', nchunk); //console.log('[ w] %d HASH bgin', nchunk);
postMessage(["read", nchunk, cdr - car, Date.now() - t0]); postMessage(["read", nchunk, cdr - car, Date.now() - t0]);
hash_calc(e.target.result); hash_calc(gc1);
} }
catch (ex) { catch (ex) {
postMessage(["panic", ex + '']); postMessage(["panic", ex + '']);
@ -66,6 +72,11 @@ onmessage = (d) => {
var hash_calc = function (buf) { var hash_calc = function (buf) {
var hash_done = function (hashbuf) { var hash_done = function (hashbuf) {
// stop gc from attempting to free early
if (!gc1 || !gc2 || !gc3)
return console.log('torch went out');
gc1 = gc2 = gc3 = null;
busy = false; busy = false;
try { try {
var hslice = new Uint8Array(hashbuf).subarray(0, 33); var hslice = new Uint8Array(hashbuf).subarray(0, 33);
@ -77,6 +88,10 @@ onmessage = (d) => {
} }
}; };
// stop gc from attempting to free early
if (!gc1 || !gc2 || !gc3)
console.log('torch went out');
if (subtle) if (subtle)
subtle.digest('SHA-512', buf).then(hash_done); subtle.digest('SHA-512', buf).then(hash_done);
else { else {