optimize get and put

src/NativeShare.php

@@ -174,7 +174,7 @@ public function put($source, $target) {
 		$sourceHandle = fopen($source, 'rb');
 		$targetHandle = $this->state->create($this->buildUrl($target));
 
-		while ($data = fread($sourceHandle, 4096)) {
+		while ($data = fread($sourceHandle, NativeReadStream::CHUNK_SIZE)) {
 			$this->state->write($targetHandle, $data);
 		}
 		$this->state->close($targetHandle);
@@ -214,7 +214,7 @@ public function get($source, $target) {
 			throw new InvalidResourceException('Failed opening remote file "' . $source . '" for reading');
 		}
 
-		while ($data = $this->state->read($sourceHandle, 4096)) {
+		while ($data = $this->state->read($sourceHandle, NativeReadStream::CHUNK_SIZE)) {
 			fwrite($targetHandle, $data);
 		}
 		$this->state->close($sourceHandle);