Adding integrated tile server

[simantics/district.git] / org.simantics.maps.server / node / node-v4.8.0-win-x64 / node_modules / npm / node_modules / request / node_modules / isstream / isstream.js

diff --git a/org.simantics.maps.server/node/node-v4.8.0-win-x64/node_modules/npm/node_modules/request/node_modules/isstream/isstream.js b/org.simantics.maps.server/node/node-v4.8.0-win-x64/node_modules/npm/node_modules/request/node_modules/isstream/isstream.js
new file mode 100644 (file)
index 0000000..a1d104a
--- /dev/null
+++ b/org.simantics.maps.server/node/node-v4.8.0-win-x64/node_modules/npm/node_modules/request/node_modules/isstream/isstream.js
@@ -0,0 +1,27 @@
+var stream = require('stream')
+
+
+function isStream (obj) {
+  return obj instanceof stream.Stream
+}
+
+
+function isReadable (obj) {
+  return isStream(obj) && typeof obj._read == 'function' && typeof obj._readableState == 'object'
+}
+
+
+function isWritable (obj) {
+  return isStream(obj) && typeof obj._write == 'function' && typeof obj._writableState == 'object'
+}
+
+
+function isDuplex (obj) {
+  return isReadable(obj) && isWritable(obj)
+}
+
+
+module.exports            = isStream
+module.exports.isReadable = isReadable
+module.exports.isWritable = isWritable
+module.exports.isDuplex   = isDuplex