Do not check error code if select returns 0

Summary: They don't seem to be guaranteed on our system, 0 just means timeout

Reviewed By: karl


git-svn-id: https://svn.apache.org/repos/asf/incubator/thrift/trunk@665040 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/lib/cpp/src/transport/TServerSocket.cpp b/lib/cpp/src/transport/TServerSocket.cpp
index 448898a..2393134 100644
--- a/lib/cpp/src/transport/TServerSocket.cpp
+++ b/lib/cpp/src/transport/TServerSocket.cpp
@@ -148,13 +148,13 @@
     interrupt_ = false;
 
     if (ret > 0) {
+      // Cool, ready to accept
       break;
     } else if (ret == 0) {
-      if (errno != EINTR && errno != EAGAIN) {
-        perror("TServerSocket::select() errcode");
-        throw TTransportException(TTransportException::UNKNOWN);
-      }
+      // Timed out... keep going
+      continue;
     } else {
+      // Bogus, select messed up
       perror("TServerSocket::select() negret");
       throw TTransportException(TTransportException::UNKNOWN);
     }