Set send buffer size for P2P UDP sockets.

On windows the default send buffer is too small. Set it explicitly to prevent packets from being lost when sending.

BUG=None
TEST=None


Review URL: http://codereview.chromium.org/8304008

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@105995 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 18 insertions, 0 deletions

diff --git a/net/udp/udp_socket_libevent.cc b/net/udp/udp_socket_libevent.cc
index 33f9edd..1e790df 100644
--- a/net/udp/udp_socket_libevent.cc
+++ b/net/udp/udp_socket_libevent.cc
@@ -218,6 +218,7 @@ int UDPSocketLibevent::SendToOrWrite(IOBuffer* buf,
 }
 
 int UDPSocketLibevent::Connect(const IPEndPoint& address) {
+  DCHECK(CalledOnValidThread());
   DCHECK(!is_connected());
   DCHECK(!remote_address_.get());
   int rv = CreateSocket(address);
@@ -246,6 +247,7 @@ int UDPSocketLibevent::Connect(const IPEndPoint& address) {
 }
 
 int UDPSocketLibevent::Bind(const IPEndPoint& address) {
+  DCHECK(CalledOnValidThread());
   DCHECK(!is_connected());
   int rv = CreateSocket(address);
   if (rv < 0)
@@ -257,6 +259,22 @@ int UDPSocketLibevent::Bind(const IPEndPoint& address) {
   return rv;
 }
 
+bool UDPSocketLibevent::SetReceiveBufferSize(int32 size) {
+  DCHECK(CalledOnValidThread());
+  int rv = setsockopt(socket_, SOL_SOCKET, SO_RCVBUF,
+                      reinterpret_cast<const char*>(&size), sizeof(size));
+  DCHECK(!rv) << "Could not set socket receive buffer size: " << errno;
+  return rv == 0;
+}
+
+bool UDPSocketLibevent::SetSendBufferSize(int32 size) {
+  DCHECK(CalledOnValidThread());
+  int rv = setsockopt(socket_, SOL_SOCKET, SO_SNDBUF,
+                      reinterpret_cast<const char*>(&size), sizeof(size));
+  DCHECK(!rv) << "Could not set socket send buffer size: " << errno;
+  return rv == 0;
+}
+
 void UDPSocketLibevent::DoReadCallback(int rv) {
   DCHECK_NE(rv, ERR_IO_PENDING);
   DCHECK(read_callback_);