From 0cad2896ae7aa7d9b2561785f9243ceb546abf99 Mon Sep 17 00:00:00 2001
From: Dominik Picheta <dominikpicheta@gmail.com>
Date: Thu, 23 Mar 2017 21:34:53 +0100
Subject: [PATCH] Implement asyncfile.readToStream.

---
 lib/pure/asyncfile.nim | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/lib/pure/asyncfile.nim b/lib/pure/asyncfile.nim
index 488b8276e..c58e6c11b 100644
--- a/lib/pure/asyncfile.nim
+++ b/lib/pure/asyncfile.nim
@@ -489,3 +489,13 @@ proc writeFromStream*(f: AsyncFile, fs: FutureStream[string]) {.async.} =
       await f.write(value)
     else:
       break
+
+proc readToStream*(f: AsyncFile, fs: FutureStream[string]) {.async.} =
+  ## Writes data to the specified future stream as the file is read.
+  while true:
+    let data = await read(f, 4000)
+    if data.len == 0:
+      break
+    await fs.write(data)
+
+  fs.complete()
\ No newline at end of file