core+daemon: eliminate scheduler::{schedule,cancel} wrappers

Also move core/global-io.hpp to daemon/global.hpp

Refs: #4528, #4883
Change-Id: I0b99029f1a19d7451aab57099cd3303b7eb42ff3
diff --git a/tests/daemon/fw/asf-measurements.t.cpp b/tests/daemon/fw/asf-measurements.t.cpp
index cc4c9e4..71491b7 100644
--- a/tests/daemon/fw/asf-measurements.t.cpp
+++ b/tests/daemon/fw/asf-measurements.t.cpp
@@ -24,6 +24,7 @@
  */
 
 #include "fw/asf-measurements.hpp"
+#include "daemon/global.hpp"
 
 #include "tests/daemon/face/dummy-face.hpp"
 #include "tests/test-common.hpp"
@@ -85,7 +86,7 @@
 {
   FaceInfo info;
 
-  scheduler::EventId id = scheduler::schedule(time::seconds(1), []{});
+  auto id = getScheduler().schedule(1_s, []{});
   ndn::Name interestName("/ndn/interest");
 
   // Receive Interest and forward to next hop; should update RTO information
diff --git a/tests/daemon/fw/best-route-strategy2.t.cpp b/tests/daemon/fw/best-route-strategy2.t.cpp
index 80e2603..83f9903 100644
--- a/tests/daemon/fw/best-route-strategy2.t.cpp
+++ b/tests/daemon/fw/best-route-strategy2.t.cpp
@@ -24,6 +24,7 @@
  */
 
 #include "fw/best-route-strategy2.hpp"
+#include "daemon/global.hpp"
 
 #include "tests/test-common.hpp"
 #include "tests/daemon/face/dummy-face.hpp"
@@ -108,17 +109,17 @@
     size_t nSent = strategy.sendInterestHistory.size();
     if (nSent > nSentLast) {
       BOOST_CHECK_EQUAL(nSent - nSentLast, 1);
-      time::steady_clock::TimePoint timeSent = time::steady_clock::now();
+      auto timeSent = time::steady_clock::now();
       BOOST_CHECK_GE(timeSent - timeSentLast, TICK * 8);
       nSentLast = nSent;
       timeSentLast = timeSent;
     }
 
-    retxFrom4Evt = scheduler::schedule(TICK * 5, periodicalRetxFrom4);
+    retxFrom4Evt = getScheduler().schedule(TICK * 5, periodicalRetxFrom4);
   };
   periodicalRetxFrom4();
   this->advanceClocks(TICK, BestRouteStrategy2::RETX_SUPPRESSION_MAX * 16);
-  scheduler::cancel(retxFrom4Evt);
+  retxFrom4Evt.cancel();
 
   // nexthops for accepted retransmissions: follow FIB cost,
   // later forward to an eligible upstream with earliest out-record
diff --git a/tests/daemon/fw/forwarder.t.cpp b/tests/daemon/fw/forwarder.t.cpp
index 2c7c1d2..60c8ea4 100644
--- a/tests/daemon/fw/forwarder.t.cpp
+++ b/tests/daemon/fw/forwarder.t.cpp
@@ -24,6 +24,7 @@
  */
 
 #include "fw/forwarder.hpp"
+#include "daemon/global.hpp"
 
 #include "tests/test-common.hpp"
 #include "tests/daemon/face/dummy-face.hpp"
@@ -545,7 +546,7 @@
   face2->afterSend.connect([face1, face2] (uint32_t pktType) {
     if (pktType == tlv::Interest) {
       auto interest = make_shared<Interest>(face2->sentInterests.back());
-      scheduler::schedule(time::milliseconds(170), [face1, interest] { face1->receiveInterest(*interest); });
+      getScheduler().schedule(170_ms, [face1, interest] { face1->receiveInterest(*interest); });
     }
   });
 
diff --git a/tests/daemon/fw/multicast-strategy.t.cpp b/tests/daemon/fw/multicast-strategy.t.cpp
index 1ee1ae9..e3ed88b 100644
--- a/tests/daemon/fw/multicast-strategy.t.cpp
+++ b/tests/daemon/fw/multicast-strategy.t.cpp
@@ -24,10 +24,11 @@
  */
 
 #include "fw/multicast-strategy.hpp"
-#include "strategy-tester.hpp"
-#include "tests/daemon/face/dummy-face.hpp"
+#include "daemon/global.hpp"
 
+#include "tests/daemon/face/dummy-face.hpp"
 #include "tests/test-common.hpp"
+#include "strategy-tester.hpp"
 
 namespace nfd {
 namespace fw {
@@ -108,17 +109,17 @@
     if (nSent > nSentLast) {
       // Multicast strategy should multicast the interest to other two faces
       BOOST_CHECK_EQUAL(nSent - nSentLast, 2);
-      time::steady_clock::TimePoint timeSent = time::steady_clock::now();
+      auto timeSent = time::steady_clock::now();
       BOOST_CHECK_GE(timeSent - timeSentLast, TICK * 8);
       nSentLast = nSent;
       timeSentLast = timeSent;
     }
 
-    retxFrom4Evt = scheduler::schedule(TICK * 5, periodicalRetxFrom4);
+    retxFrom4Evt = getScheduler().schedule(TICK * 5, periodicalRetxFrom4);
   };
   periodicalRetxFrom4();
   this->advanceClocks(TICK, MulticastStrategy::RETX_SUPPRESSION_MAX * 16);
-  scheduler::cancel(retxFrom4Evt);
+  retxFrom4Evt.cancel();
 }
 
 BOOST_AUTO_TEST_CASE(RejectLoopback)
diff --git a/tests/daemon/fw/ncc-strategy.t.cpp b/tests/daemon/fw/ncc-strategy.t.cpp
index 1b71aa2..4044251 100644
--- a/tests/daemon/fw/ncc-strategy.t.cpp
+++ b/tests/daemon/fw/ncc-strategy.t.cpp
@@ -24,12 +24,10 @@
  */
 
 #include "fw/ncc-strategy.hpp"
+
+#include "tests/daemon/face/dummy-face.hpp"
 #include "strategy-tester.hpp"
 #include "topology-tester.hpp"
-#include "tests/daemon/face/dummy-face.hpp"
-#include "tests/limited-io.hpp"
-
-#include "tests/test-common.hpp"
 
 namespace nfd {
 namespace fw {
diff --git a/tests/daemon/fw/strategy-nack-return.t.cpp b/tests/daemon/fw/strategy-nack-return.t.cpp
index 86c47f6..3d61452 100644
--- a/tests/daemon/fw/strategy-nack-return.t.cpp
+++ b/tests/daemon/fw/strategy-nack-return.t.cpp
@@ -31,12 +31,11 @@
 #include "fw/best-route-strategy2.hpp"
 #include "fw/multicast-strategy.hpp"
 
-#include "tests/test-common.hpp"
-#include "tests/limited-io.hpp"
 #include "choose-strategy.hpp"
 #include "strategy-tester.hpp"
 #include "topology-tester.hpp"
 #include "tests/daemon/face/dummy-face.hpp"
+
 #include <boost/mpl/vector.hpp>
 
 namespace nfd {
diff --git a/tests/daemon/fw/strategy-no-route.t.cpp b/tests/daemon/fw/strategy-no-route.t.cpp
index 3c5be6b..6e8aa8a 100644
--- a/tests/daemon/fw/strategy-no-route.t.cpp
+++ b/tests/daemon/fw/strategy-no-route.t.cpp
@@ -34,11 +34,10 @@
 #include "fw/best-route-strategy2.hpp"
 #include "fw/multicast-strategy.hpp"
 
-#include "tests/test-common.hpp"
-#include "tests/limited-io.hpp"
 #include "choose-strategy.hpp"
 #include "strategy-tester.hpp"
 #include "tests/daemon/face/dummy-face.hpp"
+
 #include <boost/mpl/copy_if.hpp>
 #include <boost/mpl/vector.hpp>
 
diff --git a/tests/daemon/fw/strategy-scope-control.t.cpp b/tests/daemon/fw/strategy-scope-control.t.cpp
index 984c792..c97e8ab 100644
--- a/tests/daemon/fw/strategy-scope-control.t.cpp
+++ b/tests/daemon/fw/strategy-scope-control.t.cpp
@@ -35,11 +35,10 @@
 #include "fw/multicast-strategy.hpp"
 #include "fw/ncc-strategy.hpp"
 
-#include "tests/test-common.hpp"
-#include "tests/limited-io.hpp"
 #include "choose-strategy.hpp"
 #include "strategy-tester.hpp"
 #include "tests/daemon/face/dummy-face.hpp"
+
 #include <boost/mpl/copy_if.hpp>
 #include <boost/mpl/vector.hpp>
 
diff --git a/tests/daemon/fw/strategy-tester.hpp b/tests/daemon/fw/strategy-tester.hpp
index 5b5c98d..f2ac93d 100644
--- a/tests/daemon/fw/strategy-tester.hpp
+++ b/tests/daemon/fw/strategy-tester.hpp
@@ -27,7 +27,8 @@
 #define NFD_TESTS_DAEMON_FW_STRATEGY_TESTER_HPP
 
 #include "fw/strategy.hpp"
-#include "tests/limited-io.hpp"
+
+#include "tests/daemon/limited-io.hpp"
 
 namespace nfd {
 namespace fw {
diff --git a/tests/daemon/fw/topology-tester.cpp b/tests/daemon/fw/topology-tester.cpp
index 15bbc3c..c401aef 100644
--- a/tests/daemon/fw/topology-tester.cpp
+++ b/tests/daemon/fw/topology-tester.cpp
@@ -24,6 +24,7 @@
  */
 
 #include "topology-tester.hpp"
+#include "daemon/global.hpp"
 #include "face/generic-link-service.hpp"
 
 #include <ndn-cxx/encoding/encoding-buffer-fwd.hpp>
@@ -98,7 +99,7 @@
 void
 TopologyLink::scheduleReceive(InternalTransportBase* recipient, const Block& packet)
 {
-  scheduler::schedule(m_delay, [packet, recipient] {
+  getScheduler().schedule(m_delay, [packet, recipient] {
     recipient->receiveFromLink(packet);
   });
 }
@@ -271,8 +272,9 @@
   face.expressInterest(*interest, nullptr, nullptr, nullptr);
 
   if (n > 1) {
-    scheduler::schedule(interval,
-                        [=, &face] { addIntervalConsumer(face, prefix, interval, n - 1, seq); });
+    getScheduler().schedule(interval, [=, &face] {
+      addIntervalConsumer(face, prefix, interval, n - 1, seq);
+    });
   }
 }