thread/*Cond: rename methods to match std::condition_variable

src/output/plugins/AlsaOutputPlugin.cxx

@@ -305,7 +305,7 @@ private:
 		const std::lock_guard<Mutex> lock(mutex);
 		/* notify the OutputThread that there is now
 		   room in ring_buffer */
-		cond.signal();
+		cond.notify_one();
 
 		return true;
 	}
@@ -330,7 +330,7 @@ private:
 		const std::lock_guard<Mutex> lock(mutex);
 		error = std::current_exception();
 		active = false;
-		cond.signal();
+		cond.notify_one();
 	}
 
 	/* virtual methods from class MultiSocketMonitor */
@@ -956,7 +956,7 @@ try {
 			}
 
 			drain = false;
-			cond.signal();
+			cond.notify_one();
 			return;
 		}
 	}
@@ -984,7 +984,7 @@ try {
 			{
 				const std::lock_guard<Mutex> lock(mutex);
 				active = false;
-				cond.signal();
+				cond.notify_one();
 			}
 
 			/* avoid race condition: see if data has

src/output/plugins/httpd/HttpdOutputPlugin.cxx

@@ -120,7 +120,7 @@ HttpdOutput::OnDeferredBroadcast() noexcept
 
 	/* wake up the client that may be waiting for the queue to be
 	   flushed */
-	cond.broadcast();
+	cond.notify_all();
 }
 
 void
@@ -398,7 +398,7 @@ HttpdOutput::CancelAllClients() noexcept
 	for (auto &client : clients)
 		client.CancelQueue();
 
-	cond.broadcast();
+	cond.notify_all();
 }
 
 void

src/output/plugins/sles/SlesOutputPlugin.cxx

@@ -397,7 +397,7 @@ SlesOutput::PlayedCallback()
 	const std::lock_guard<Mutex> protect(mutex);
 	assert(n_queued > 0);
 	--n_queued;
-	cond.signal();
+	cond.notify_one();
 }
 
 static bool