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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 | 17x 17x 17x 17x 17x 17x 17x 17x 17x 149711x 149711x 149711x 149711x 17x 178524x 178524x 178524x 17x 149711x 149711x 149711x 18934x 14x 14x 14x 18920x 18920x 130777x 130777x 130777x 149711x 17x 17x 17x 17x 17x | 'use strict';
const {
MathFloor,
NumberIsInteger,
} = primordials;
const { ERR_INVALID_ARG_VALUE } = require('internal/errors').codes;
function highWaterMarkFrom(options, isDuplex, duplexKey) {
return options.highWaterMark != null ? options.highWaterMark :
isDuplex ? options[duplexKey] : null;
}
function getDefaultHighWaterMark(objectMode) {
return objectMode ? 16 : 16 * 1024;
}
function getHighWaterMark(state, options, duplexKey, isDuplex) {
const hwm = highWaterMarkFrom(options, isDuplex, duplexKey);
if (hwm != null) {
if (!NumberIsInteger(hwm) || hwm < 0) {
const name = isDuplex ? `options.${duplexKey}` : 'options.highWaterMark';
throw new ERR_INVALID_ARG_VALUE(name, hwm);
}
return MathFloor(hwm);
}
// Default value
return getDefaultHighWaterMark(state.objectMode);
}
module.exports = {
getHighWaterMark,
getDefaultHighWaterMark
};
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