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27 lines
749 B
27 lines
749 B
'use strict'; |
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var ERR_INVALID_OPT_VALUE = require('../../../errors').codes.ERR_INVALID_OPT_VALUE; |
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function highWaterMarkFrom(options, isDuplex, duplexKey) { |
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return options.highWaterMark != null ? options.highWaterMark : isDuplex ? options[duplexKey] : null; |
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} |
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function getHighWaterMark(state, options, duplexKey, isDuplex) { |
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var hwm = highWaterMarkFrom(options, isDuplex, duplexKey); |
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if (hwm != null) { |
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if (!(isFinite(hwm) && Math.floor(hwm) === hwm) || hwm < 0) { |
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var name = isDuplex ? duplexKey : 'highWaterMark'; |
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throw new ERR_INVALID_OPT_VALUE(name, hwm); |
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} |
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return Math.floor(hwm); |
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} // Default value |
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return state.objectMode ? 16 : 16 * 1024; |
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} |
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module.exports = { |
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getHighWaterMark: getHighWaterMark |
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}; |