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fix: Bug 1 keyboard preview cam lan 2+ — token race: stale check != token -> > token (claim-then-compare) trong _sfWasmFallbackNote + API path (T1)

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Lộc Phạm
2026-08-11 15:31:56 +07:00
parent cadb5402a3
commit aa06d40b98
4 changed files with 246 additions and 4 deletions
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app/static/js/app.jsx
+2 -2
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@@ -218,7 +218,7 @@ const _sfWasmFallbackNote = (track, pitch, velocity, durationMs, startTime, key,
const bank = (eng && eng.soundfont_bank) || 0;
const program = (eng && eng.soundfont_program) || (track && track.instrumentProgram !== undefined ? track.instrumentProgram : 0);
const k = key || (track ? track.id : 'global');
if (_nativeSfPreviews[k] && token != null && _nativeSfPreviews[k].token !== token) return; // stale
if (_nativeSfPreviews[k] && token != null && _nativeSfPreviews[k].token > token) return; // stale (claim-then-compare: chi bo neu co note MOI HON)
const S = window.SonicSF;
if (!S) return;
const ch = (track && track.midiChannel != null) ? track.midiChannel : 0;
@@ -264,7 +264,7 @@ const playNativeSfNote = (track, pitch, velocity, durationMs, startTime, key) =>
_sfWasmFallbackNote(track, pitch, velocity, durationMs, startTime, k, token);
return;
}
if (_nativeSfPreviews[k] && _nativeSfPreviews[k].token !== token) return; // stale
if (_nativeSfPreviews[k] && _nativeSfPreviews[k].token > token) return; // stale (claim-then-compare: chi bo neu co note MOI HON)
window.__nativeSfOk = true;
const audio = new Audio(API_BASE_URL + res.url);
_nativeSfPreviews[k] = { audio: audio, token: token };