Avoid STATUS_PENDING error with SmbWritableStream.

lib/api/src/createWriteStream.js

@@ -7,6 +7,18 @@ const requestAsync = Bluebird.promisify(request)
 
 const maxPacketSize = new Bigint(8, 0x00010000 - 0x71)
 
+function * fibonacci () {
+  let a = 1
+  let b = 2
+
+  for (;;) {
+    const c = a
+    a = b
+    b = c + a
+    yield c
+  }
+}
+
 class SmbWritableStream extends Writable {
   constructor (connection, file, options = {}) {
     super(options)
@@ -32,11 +44,29 @@ class SmbWritableStream extends Writable {
       chunk = chunk.slice(packetSize)
       const offset = new Bigint(this.offset)
       this.offset = this.offset.add(packetSize)
-      await requestAsync('write', {
-        FileId: this.file.FileId,
-        Offset: offset.toBuffer(),
-        Buffer: packet
-      }, this.connection)
+
+      const fiboGen = fibonacci()
+      let pending = true
+
+      while (pending) {
+        try {
+          await requestAsync('write', {
+            FileId: this.file.FileId,
+            Offset: offset.toBuffer(),
+            Buffer: packet
+          }, this.connection)
+
+          pending = false
+        } catch (error) {
+          if (error.code === 'STATUS_PENDING') {
+            await new Promise((resolve, reject) => {
+              setTimeout(resolve, fiboGen.next().value)
+            })
+          } else {
+            throw error
+          }
+        }
+      }
     }
 
     next()