Merge "RPC Binder: disable Nagle's algorithm"

1 files changed, 13 insertions, 0 deletions

diff --git a/libs/binder/RpcSession.cpp b/libs/binder/RpcSession.cpp
index 233a8e4b86..fbad0f7756 100644
--- a/libs/binder/RpcSession.cpp
+++ b/libs/binder/RpcSession.cpp
@@ -20,6 +20,7 @@
 
 #include <dlfcn.h>
 #include <inttypes.h>
+#include <netinet/tcp.h>
 #include <poll.h>
 #include <unistd.h>
 
@@ -608,6 +609,18 @@ status_t RpcSession::setupOneSocketConnection(const RpcSocketAddress& addr,
             return -savedErrno;
         }
 
+        if (addr.addr()->sa_family == AF_INET || addr.addr()->sa_family == AF_INET6) {
+            int noDelay = 1;
+            int result =
+                    setsockopt(serverFd.get(), IPPROTO_TCP, TCP_NODELAY, &noDelay, sizeof(noDelay));
+            if (result < 0) {
+                int savedErrno = errno;
+                ALOGE("Could not set TCP_NODELAY on %s: %s", addr.toString().c_str(),
+                      strerror(savedErrno));
+                return -savedErrno;
+            }
+        }
+
         RpcTransportFd transportFd(std::move(serverFd));
 
         if (0 != TEMP_FAILURE_RETRY(connect(transportFd.fd.get(), addr.addr(), addr.addrSize()))) {