[2/6] mesos git commit: Added a utility function to get back non-loopback address on the host.

[ji...@apache.org]

Added a utility function to get back non-loopback address on the host.

Review: https://reviews.apache.org/r/57628/


Project: http://git-wip-us.apache.org/repos/asf/mesos/repo
Commit: http://git-wip-us.apache.org/repos/asf/mesos/commit/b61cab7f
Tree: http://git-wip-us.apache.org/repos/asf/mesos/tree/b61cab7f
Diff: http://git-wip-us.apache.org/repos/asf/mesos/diff/b61cab7f

Branch: refs/heads/master
Commit: b61cab7ff496401ec84b63865093eeb3c75b6444
Parents: 02b9cd0
Author: Avinash sridharan <av...@mesosphere.io>
Authored: Sun Mar 19 09:09:12 2017 -0700
Committer: Jie Yu <yu...@gmail.com>
Committed: Sun Mar 19 09:09:12 2017 -0700

----------------------------------------------------------------------
 src/tests/utils.cpp | 28 ++++++++++++++++++++++++++++
 src/tests/utils.hpp |  4 ++++
 2 files changed, 32 insertions(+)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/mesos/blob/b61cab7f/src/tests/utils.cpp
----------------------------------------------------------------------
diff --git a/src/tests/utils.cpp b/src/tests/utils.cpp
index bc5c8ab..3190daa 100644
--- a/src/tests/utils.cpp
+++ b/src/tests/utils.cpp
@@ -35,6 +35,7 @@
 namespace http = process::http;
 namespace inet = process::network::inet;
 
+using std::set;
 using std::string;
 
 using process::Future;
@@ -183,6 +184,33 @@ string getWebUIDir()
   return path;
 }
 
+
+Try<net::IPNetwork> getNonLoopbackIP()
+{
+  Try<set<string>> links = net::links();
+  if (links.isError()) {
+    return Error(
+    "Unable to retrieve interfaces on this host: " + links.error());
+  }
+
+  foreach (const string& link, links.get()) {
+    Result<net::IPNetwork> hostIPNetwork =
+      net::IPNetwork::fromLinkDevice(link, AF_INET);
+
+    if (hostIPNetwork.isError()) {
+      return Error(
+          "Unable to find a non-loopback address: " + hostIPNetwork.error());
+    }
+
+    if (hostIPNetwork.isSome() &&
+        (hostIPNetwork.get() != net::IPNetwork::LOOPBACK_V4())) {
+      return hostIPNetwork.get();
+    }
+  }
+
+  return Error("No non-loopback addresses available on this host");
+}
+
 } // namespace tests {
 } // namespace internal {
 } // namespace mesos {

http://git-wip-us.apache.org/repos/asf/mesos/blob/b61cab7f/src/tests/utils.hpp
----------------------------------------------------------------------
diff --git a/src/tests/utils.hpp b/src/tests/utils.hpp
index cdbbc1c..a2ae43c 100644
--- a/src/tests/utils.hpp
+++ b/src/tests/utils.hpp
@@ -21,6 +21,7 @@
 
 #include <string>
 
+#include <stout/ip.hpp>
 #include <stout/json.hpp>
 #include <stout/try.hpp>
 
@@ -81,6 +82,9 @@ std::string getWebUIDir();
 // caller can bind to it.
 Try<uint16_t> getFreePort();
 
+// Get a non-loopback IP available on this host.
+Try<net::IPNetwork> getNonLoopbackIP();
+
 } // namespace tests {
 } // namespace internal {
 } // namespace mesos {