X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=folly%2Fio%2Fasync%2FAsyncTransport.h;h=c42888da211144eff5bbb1042a3b40e5cbc93074;hb=fbc4c23895b0ee3874d9a36401d580a2a8957ba9;hp=ca5cc4d2b4b2ae9b1eb1be56e1c1c49cc038102d;hpb=662b86a949f85dfcbf966a346dba8306710eabcb;p=folly.git

diff --git a/folly/io/async/AsyncTransport.h b/folly/io/async/AsyncTransport.h
index ca5cc4d2..c42888da 100644
--- a/folly/io/async/AsyncTransport.h
+++ b/folly/io/async/AsyncTransport.h
@@ -60,6 +60,10 @@ enum class WriteFlags : uint32_t {
    * this indicates that only the write side of socket should be shutdown
    */
   WRITE_SHUTDOWN = 0x04,
+  /*
+   * use msg zerocopy if allowed
+   */
+  WRITE_MSG_ZEROCOPY = 0x08,
 };
 
 /*