mgmt+rib: use getScheduler() in RibManager and Readvertise

Refs: #4528
Change-Id: Ie6dd2b0fbe5d57cd7878d86b0185ae5d9bd92cf0
diff --git a/daemon/rib/readvertise/readvertise.cpp b/daemon/rib/readvertise/readvertise.cpp
index 49c3400..d5bedf8 100644
--- a/daemon/rib/readvertise/readvertise.cpp
+++ b/daemon/rib/readvertise/readvertise.cpp
@@ -25,6 +25,7 @@
 
 #include "readvertise.hpp"
 #include "core/logger.hpp"
+#include "daemon/global.hpp"
 
 #include <ndn-cxx/util/random.hpp>
 
@@ -44,11 +45,10 @@
   return std::max(newTime, 0_ms);
 }
 
-Readvertise::Readvertise(Rib& rib, Scheduler& scheduler,
+Readvertise::Readvertise(Rib& rib,
                          unique_ptr<ReadvertisePolicy> policy,
                          unique_ptr<ReadvertiseDestination> destination)
-  : m_scheduler(scheduler)
-  , m_policy(std::move(policy))
+  : m_policy(std::move(policy))
   , m_destination(std::move(destination))
 {
   m_addRouteConn = rib.afterAddRoute.connect([this] (const auto& r) { this->afterAddRoute(r); });
@@ -162,14 +162,14 @@
     [=] {
       NFD_LOG_DEBUG("advertise " << rrIt->prefix << " success");
       rrIt->retryDelay = RETRY_DELAY_MIN;
-      rrIt->retryEvt = m_scheduler.schedule(randomizeTimer(m_policy->getRefreshInterval()),
-                                            [=] { advertise(rrIt); });
+      rrIt->retryEvt = getScheduler().schedule(randomizeTimer(m_policy->getRefreshInterval()),
+                                               [=] { advertise(rrIt); });
     },
     [=] (const std::string& msg) {
       NFD_LOG_DEBUG("advertise " << rrIt->prefix << " failure " << msg);
       rrIt->retryDelay = std::min(RETRY_DELAY_MAX, rrIt->retryDelay * 2);
-      rrIt->retryEvt = m_scheduler.schedule(randomizeTimer(rrIt->retryDelay),
-                                            [=] { advertise(rrIt); });
+      rrIt->retryEvt = getScheduler().schedule(randomizeTimer(rrIt->retryDelay),
+                                               [=] { advertise(rrIt); });
     });
 }
 
@@ -192,8 +192,8 @@
     [=] (const std::string& msg) {
       NFD_LOG_DEBUG("withdraw " << rrIt->prefix << " failure " << msg);
       rrIt->retryDelay = std::min(RETRY_DELAY_MAX, rrIt->retryDelay * 2);
-      rrIt->retryEvt = m_scheduler.schedule(randomizeTimer(rrIt->retryDelay),
-                                            [=] { withdraw(rrIt); });
+      rrIt->retryEvt = getScheduler().schedule(randomizeTimer(rrIt->retryDelay),
+                                               [=] { withdraw(rrIt); });
     });
 }