diff options
Diffstat (limited to 'cli/js/ops/dispatch_minimal.ts')
| -rw-r--r-- | cli/js/ops/dispatch_minimal.ts | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/cli/js/ops/dispatch_minimal.ts b/cli/js/ops/dispatch_minimal.ts index 7aec4683c..61d630240 100644 --- a/cli/js/ops/dispatch_minimal.ts +++ b/cli/js/ops/dispatch_minimal.ts @@ -4,7 +4,11 @@ import { core } from "../core.ts"; import { TextDecoder } from "../web/text_encoding.ts"; import { ErrorKind, errors, getErrorClass } from "../errors.ts"; -const promiseTableMin = new Map<number, util.Resolvable<RecordMinimal>>(); +// Using an object without a prototype because `Map` was causing GC problems. +const promiseTableMin: { + [key: number]: util.Resolvable<RecordMinimal>; +} = Object.create(null); + // Note it's important that promiseId starts at 1 instead of 0, because sync // messages are indicated with promiseId 0. If we ever add wrap around logic for // overflows, this should be taken into account. @@ -72,8 +76,8 @@ util.assert(scratchBytes.byteLength === scratch32.length * 4); export function asyncMsgFromRust(ui8: Uint8Array): void { const record = recordFromBufMinimal(ui8); const { promiseId } = record; - const promise = promiseTableMin.get(promiseId); - promiseTableMin.delete(promiseId); + const promise = promiseTableMin[promiseId]; + delete promiseTableMin[promiseId]; util.assert(promise); promise.resolve(record); } @@ -95,7 +99,7 @@ export async function sendAsyncMinimal( promise.resolve(record); } else { // Async result. - promiseTableMin.set(promiseId, promise); + promiseTableMin[promiseId] = promise; } const res = await promise; |