Implementation and fixes for Blimp client/engine E2E communication.

blimp/net/common.cc

Index: blimp/net/common.cc
diff --git a/blimp/net/common.cc b/blimp/net/common.cc
index 1663b300534f03ff610710b6d2630a5f7c04c427..4ba6c75c335c5bbe84fd5472d9e44b130b60157c 100644
--- a/blimp/net/common.cc
+++ b/blimp/net/common.cc
@@ -4,9 +4,31 @@
 
 #include "blimp/net/common.h"
 
+#include <iostream>
+
+#include "blimp/common/proto/blimp_message.pb.h"
+#include "net/base/ip_address_number.h"
+
 namespace blimp {
 
 const size_t kMaxPacketPayloadSizeBytes = 1 << 16;  // 64KB
 const size_t kPacketHeaderSizeBytes = 4;
+const uint16_t kDefaultTcpPort = 25467;

[haibinlu, 2016/01/04 19:45:45]

this will be mapped to a different port in engine. 

[Kevin M, 2016/01/04 20:42:13]

Good point, removed it from common.h.

+
+net::IPAddressNumber GetIPv4AnyAddress() {
+  net::IPAddressNumber output;
+  output.push_back(0);
+  output.push_back(0);
+  output.push_back(0);
+  output.push_back(0);
+  return output;
+}
+
+std::ostream& operator<<(std::ostream& out, const BlimpMessage& message) {
+  // TODO(kmarshall): Log type-specific contextual detail.
+  out << "<BlimpMessage type=" << message.type()
+      << ", size=" << message.ByteSize() << ">";
+  return out;
+}
 
 }  // namespace blimp