Rename current_time() to now()

Follow C++11 naming conventions.

No functional change.

src/benchmark.cpp

@@ -111,7 +111,7 @@ void benchmark(const Position& current, istream& is) {
 
   int64_t nodes = 0;
   Search::StateStackPtr st;
-  Time time = Time::current_time();
+  Time time = Time::now();
 
   for (size_t i = 0; i < fens.size(); i++)
   {

src/book.cpp

@@ -340,7 +340,7 @@ namespace {
 
 Book::Book() {
 
-  for (int i = Time::current_time().msec() % 10000; i > 0; i--)
+  for (int i = Time::now().msec() % 10000; i > 0; i--)
       RKiss.rand<unsigned>(); // Make random number generation less deterministic
 }
 

src/misc.cpp

@@ -201,7 +201,7 @@ void timed_wait(WaitCondition& sleepCond, Lock& sleepLock, int msec) {
   int tm = msec;
 #else
   timespec ts, *tm = &ts;
-  uint64_t ms = Time::current_time().msec() + msec;
+  uint64_t ms = Time::now().msec() + msec;
 
   ts.tv_sec = ms / 1000;
   ts.tv_nsec = (ms % 1000) * 1000000LL;

src/misc.h

@@ -46,9 +46,9 @@ struct Log : public std::ofstream {
 
 struct Time {
   int64_t msec() const { return time_to_msec(t); }
-  int elapsed() const { return int(current_time().msec() - msec()); }
+  int elapsed() const { return int(now().msec() - msec()); }
 
-  static Time current_time() { Time t; system_time(&t.t); return t; }
+  static Time now() { Time t; system_time(&t.t); return t; }
 
 private:
   sys_time_t t;

src/search.cpp

@@ -1494,7 +1494,7 @@ split_point_start: // At split points actual search starts from here
     static RKISS rk;
 
     // PRNG sequence should be not deterministic
-    for (int i = Time::current_time().msec() % 50; i > 0; i--)
+    for (int i = Time::now().msec() % 50; i > 0; i--)
         rk.rand<unsigned>();
 
     // RootMoves are already sorted by score in descending order
@@ -1749,11 +1749,11 @@ void Thread::idle_loop() {
 
 void check_time() {
 
-  static Time lastInfoTime = Time::current_time();
+  static Time lastInfoTime = Time::now();
 
   if (lastInfoTime.elapsed() >= 1000)
   {
-      lastInfoTime = Time::current_time();
+      lastInfoTime = Time::now();
       dbg_print();
   }
 

src/thread.cpp

@@ -417,7 +417,7 @@ void ThreadPool::start_searching(const Position& pos, const LimitsType& limits,
                                  const std::vector<Move>& searchMoves, StateStackPtr& states) {
   wait_for_search_finished();
 
-  SearchTime = Time::current_time(); // As early as possible
+  SearchTime = Time::now(); // As early as possible
 
   Signals.stopOnPonderhit = Signals.firstRootMove = false;
   Signals.stop = Signals.failedLowAtRoot = false;