DatabasePrint: move PrintSongCount() to Count.cxx

Makefile.am

@@ -194,6 +194,7 @@ libmpd_a_SOURCES += \
 	src/queue/PlaylistUpdate.cxx \
 	src/command/StorageCommands.cxx src/command/StorageCommands.hxx \
 	src/command/DatabaseCommands.cxx src/command/DatabaseCommands.hxx \
+	src/db/Count.cxx src/db/Count.hxx \
 	src/db/LightSong.cxx src/db/LightSong.hxx \
 	src/db/LightDirectory.hxx \
 	src/db/update/UpdateDomain.cxx src/db/update/UpdateDomain.hxx \

src/command/DatabaseCommands.cxx

@@ -23,6 +23,7 @@
 #include "db/DatabaseQueue.hxx"
 #include "db/DatabasePlaylist.hxx"
 #include "db/DatabasePrint.hxx"
+#include "db/Count.hxx"
 #include "db/Selection.hxx"
 #include "CommandError.hxx"
 #include "client/Client.hxx"

src/db/Count.cxx

@@ -0,0 +1,75 @@
+/*
+ * Copyright (C) 2003-2014 The Music Player Daemon Project
+ * http://www.musicpd.org
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include "config.h"
+#include "Count.hxx"
+#include "Selection.hxx"
+#include "Interface.hxx"
+#include "client/Client.hxx"
+#include "LightSong.hxx"
+
+#include <functional>
+
+struct SearchStats {
+	unsigned n_songs;
+	unsigned long total_time_s;
+};
+
+static void
+PrintSearchStats(Client &client, const SearchStats &stats)
+{
+	client_printf(client,
+		      "songs: %u\n"
+		      "playtime: %lu\n",
+		      stats.n_songs, stats.total_time_s);
+}
+
+static bool
+stats_visitor_song(SearchStats &stats, const LightSong &song)
+{
+	stats.n_songs++;
+	stats.total_time_s += song.GetDuration();
+
+	return true;
+}
+
+bool
+PrintSongCount(Client &client, const char *name,
+	       const SongFilter *filter,
+	       Error &error)
+{
+	const Database *db = client.GetDatabase(error);
+	if (db == nullptr)
+		return false;
+
+	const DatabaseSelection selection(name, true, filter);
+
+	SearchStats stats;
+	stats.n_songs = 0;
+	stats.total_time_s = 0;
+
+	using namespace std::placeholders;
+	const auto f = std::bind(stats_visitor_song, std::ref(stats),
+				 _1);
+	if (!db->Visit(selection, f, error))
+		return false;
+
+	PrintSearchStats(client, stats);
+	return true;
+}

src/db/Count.hxx

@@ -0,0 +1,35 @@
+/*
+ * Copyright (C) 2003-2014 The Music Player Daemon Project
+ * http://www.musicpd.org
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#ifndef MPD_DB_COUNT_HXX
+#define MPD_DB_COUNT_HXX
+
+#include "Compiler.h"
+
+class Client;
+class SongFilter;
+class Error;
+
+gcc_nonnull(2)
+bool
+PrintSongCount(Client &client, const char *name,
+	       const SongFilter *filter,
+	       Error &error);
+
+#endif

src/db/DatabasePrint.cxx

@@ -168,54 +168,6 @@ db_selection_print(Client &client, const DatabaseSelection &selection,
 	return db->Visit(selection, d, s, p, error);
 }
 
-struct SearchStats {
-	unsigned n_songs;
-	unsigned long total_time_s;
-};
-
-static void
-PrintSearchStats(Client &client, const SearchStats &stats)
-{
-	client_printf(client,
-		      "songs: %u\n"
-		      "playtime: %lu\n",
-		      stats.n_songs, stats.total_time_s);
-}
-
-static bool
-stats_visitor_song(SearchStats &stats, const LightSong &song)
-{
-	stats.n_songs++;
-	stats.total_time_s += song.GetDuration();
-
-	return true;
-}
-
-bool
-PrintSongCount(Client &client, const char *name,
-	       const SongFilter *filter,
-	       Error &error)
-{
-	const Database *db = client.GetDatabase(error);
-	if (db == nullptr)
-		return false;
-
-	const DatabaseSelection selection(name, true, filter);
-
-	SearchStats stats;
-	stats.n_songs = 0;
-	stats.total_time_s = 0;
-
-	using namespace std::placeholders;
-	const auto f = std::bind(stats_visitor_song, std::ref(stats),
-				 _1);
-	if (!db->Visit(selection, f, error))
-		return false;
-
-	PrintSearchStats(client, stats);
-	return true;
-}
-
 static bool
 PrintSongURIVisitor(Client &client, const LightSong &song)
 {

src/db/DatabasePrint.hxx

@@ -37,12 +37,6 @@ bool
 db_selection_print(Client &client, const DatabaseSelection &selection,
 		   bool full, bool base, Error &error);
 
-gcc_nonnull(2)
-bool
-PrintSongCount(Client &client, const char *name,
-	       const SongFilter *filter,
-	       Error &error);
-
 bool
 PrintUniqueTags(Client &client, unsigned type, uint32_t group_mask,
 		const SongFilter *filter,