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authorMinteck <freeziv.ytb@gmail.com>2021-03-07 18:29:17 +0100
committerMinteck <freeziv.ytb@gmail.com>2021-03-07 18:29:17 +0100
commit0f79e708bf07721b73ea41e5d341be08e8ea4dce (patch)
treef3c63cd6a9f4ef0b26f95eec6a031600232e80c8 /node_modules/readable-stream/lib/internal/streams/state.js
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Initial commit
Diffstat (limited to 'node_modules/readable-stream/lib/internal/streams/state.js')
-rw-r--r--node_modules/readable-stream/lib/internal/streams/state.js27
1 files changed, 27 insertions, 0 deletions
diff --git a/node_modules/readable-stream/lib/internal/streams/state.js b/node_modules/readable-stream/lib/internal/streams/state.js
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+++ b/node_modules/readable-stream/lib/internal/streams/state.js
@@ -0,0 +1,27 @@
+'use strict';
+
+var ERR_INVALID_OPT_VALUE = require('../../../errors').codes.ERR_INVALID_OPT_VALUE;
+
+function highWaterMarkFrom(options, isDuplex, duplexKey) {
+ return options.highWaterMark != null ? options.highWaterMark : isDuplex ? options[duplexKey] : null;
+}
+
+function getHighWaterMark(state, options, duplexKey, isDuplex) {
+ var hwm = highWaterMarkFrom(options, isDuplex, duplexKey);
+
+ if (hwm != null) {
+ if (!(isFinite(hwm) && Math.floor(hwm) === hwm) || hwm < 0) {
+ var name = isDuplex ? duplexKey : 'highWaterMark';
+ throw new ERR_INVALID_OPT_VALUE(name, hwm);
+ }
+
+ return Math.floor(hwm);
+ } // Default value
+
+
+ return state.objectMode ? 16 : 16 * 1024;
+}
+
+module.exports = {
+ getHighWaterMark: getHighWaterMark
+}; \ No newline at end of file