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13 lines
530 B
Plaintext
13 lines
530 B
Plaintext
/** Default interval between SSE keep-alive comment frames. */
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export const DEFAULT_SSE_KEEP_ALIVE_MS = 15000;
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const MAX_TIMER_DELAY_MS = 2 ** 31 - 1;
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/** Arms an unref'd timer, or disables keep-alive for invalid delays. */
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export function armSseKeepAlive(intervalMs, onTick) {
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if (!Number.isFinite(intervalMs) || intervalMs < 1) {
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return undefined;
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}
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const timer = setInterval(onTick, Math.min(intervalMs, MAX_TIMER_DELAY_MS));
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timer.unref?.();
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return timer;
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}
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//# sourceMappingURL=sseKeepAlive.js.map |