commit f4c1eb3e9e9b53e3640e8411d09cf66537d8db59
author Junxiao Shi <git@mail1.yoursunny.com> Tue May 30 17:05:10 2017 +0000
committer Alexander Afanasyev <alexander.afanasyev@ucla.edu> Tue May 30 10:05:26 2017 -0700
tree 796df2fb645b2b73cf42ecdf1f0bf2a2b01ff6da
parent 71aecaecb7755fc78b627fd7d158bbd0462ff0fd

util: no-op NetworkMonitor on unsupported platforms

NetworkMonitor::getCapabilities() function reports what functions
and signals are supported on current platform.

refs #4025

Change-Id: I2c2825e0f9919a734fb78b4699a483c837ee09af

src/util/network-monitor.hpp

diff --git a/src/util/network-monitor.hpp b/src/util/network-monitor.hpp
index a9cf60b..59b9dc7 100644
--- a/src/util/network-monitor.hpp
+++ b/src/util/network-monitor.hpp
@@ -82,6 +82,26 @@
 
   ~NetworkMonitor();
 
+  enum Capability : uint32_t {
+    /// NetworkMonitor is not supported and is a no-op
+    CAP_NONE = 0,
+    /// listNetworkInterfaces() and getNetworkInterface() are supported
+    CAP_ENUM = 1 << 0,
+    /// NetworkMonitor onInterfaceAdded and onInterfaceRemoved signals are supported
+    CAP_IF_ADD_REMOVE = 1 << 1,
+    /// NetworkInterface onStateChanged signal is supported
+    CAP_STATE_CHANGE = 1 << 2,
+    /// NetworkInterface onMtuChanged signal is supported
+    CAP_MTU_CHANGE = 1 << 3,
+    /// NetworkInterface onAddressAdded and onAddressRemoved signals are supported
+    CAP_ADDR_ADD_REMOVE = 1 << 4
+  };
+
+  /** \return bitwise OR'ed \p Capability supported on current platform
+   */
+  uint32_t
+  getCapabilities() const;
+
   shared_ptr<NetworkInterface>
   getNetworkInterface(const std::string& ifname) const;