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-rw-r--r--src/DatabaseHelpers.cxx78
-rw-r--r--src/DatabaseHelpers.hxx36
-rw-r--r--src/DatabasePlugin.hxx12
-rw-r--r--src/DatabasePrint.cxx72
-rw-r--r--src/DatabaseVisitor.hxx2
-rw-r--r--src/db/ProxyDatabasePlugin.cxx52
-rw-r--r--src/db/SimpleDatabasePlugin.cxx11
-rw-r--r--src/db/SimpleDatabasePlugin.hxx5
8 files changed, 215 insertions, 53 deletions
diff --git a/src/DatabaseHelpers.cxx b/src/DatabaseHelpers.cxx
new file mode 100644
index 000000000..9a0931137
--- /dev/null
+++ b/src/DatabaseHelpers.cxx
@@ -0,0 +1,78 @@
+/*
+ * Copyright (C) 2003-2012 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 "DatabaseHelpers.hxx"
+#include "DatabasePlugin.hxx"
+#include "song.h"
+#include "tag.h"
+
+#include <functional>
+#include <set>
+
+#include <string.h>
+
+struct StringLess {
+ gcc_pure
+ bool operator()(const char *a, const char *b) const {
+ return strcmp(a, b) < 0;
+ }
+};
+
+typedef std::set<const char *, StringLess> StringSet;
+
+static bool
+CollectTags(StringSet &set, enum tag_type tag_type, song &song)
+{
+ struct tag *tag = song.tag;
+ if (tag == nullptr)
+ return true;
+
+ bool found = false;
+ for (unsigned i = 0; i < tag->num_items; ++i) {
+ if (tag->items[i]->type == tag_type) {
+ set.insert(tag->items[i]->value);
+ found = true;
+ }
+ }
+
+ if (!found)
+ set.insert("");
+
+ return true;
+}
+
+bool
+VisitUniqueTags(const Database &db, const DatabaseSelection &selection,
+ enum tag_type tag_type,
+ VisitString visit_string,
+ GError **error_r)
+{
+ StringSet set;
+
+ using namespace std::placeholders;
+ const auto f = std::bind(CollectTags, std::ref(set), tag_type, _1);
+ if (!db.Visit(selection, f, error_r))
+ return false;
+
+ for (auto value : set)
+ if (!visit_string(value, error_r))
+ return false;
+
+ return true;
+}
diff --git a/src/DatabaseHelpers.hxx b/src/DatabaseHelpers.hxx
new file mode 100644
index 000000000..83db182e2
--- /dev/null
+++ b/src/DatabaseHelpers.hxx
@@ -0,0 +1,36 @@
+/*
+ * Copyright (C) 2003-2012 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_MEMORY_DATABASE_PLUGIN_HXX
+#define MPD_MEMORY_DATABASE_PLUGIN_HXX
+
+#include "DatabaseVisitor.hxx"
+#include "tag.h"
+#include "gcc.h"
+
+class Database;
+struct DatabaseSelection;
+
+bool
+VisitUniqueTags(const Database &db, const DatabaseSelection &selection,
+ enum tag_type tag_type,
+ VisitString visit_string,
+ GError **error_r);
+
+#endif
diff --git a/src/DatabasePlugin.hxx b/src/DatabasePlugin.hxx
index 31b2a1024..a6168b628 100644
--- a/src/DatabasePlugin.hxx
+++ b/src/DatabasePlugin.hxx
@@ -29,6 +29,10 @@
#include "DatabaseVisitor.hxx"
#include "gcc.h"
+extern "C" {
+#include "tag.h"
+}
+
struct config_param;
struct DatabaseSelection;
struct db_visitor;
@@ -82,6 +86,14 @@ public:
GError **error_r) const {
return Visit(selection, VisitDirectory(), visit_song, error_r);
}
+
+ /**
+ * Visit all unique tag values.
+ */
+ virtual bool VisitUniqueTags(const DatabaseSelection &selection,
+ enum tag_type tag_type,
+ VisitString visit_string,
+ GError **error_r) const = 0;
};
struct DatabasePlugin {
diff --git a/src/DatabasePrint.cxx b/src/DatabasePrint.cxx
index d22d4db8a..b58619a95 100644
--- a/src/DatabasePrint.cxx
+++ b/src/DatabasePrint.cxx
@@ -38,7 +38,6 @@ extern "C" {
#include "DatabasePlugin.hxx"
#include <functional>
-#include <set>
static bool
PrintDirectory(struct client *client, const directory &directory)
@@ -186,48 +185,19 @@ printInfoForAllIn(struct client *client, const char *uri_utf8,
return db_selection_print(client, selection, true, error_r);
}
-struct StringLess {
- gcc_pure
- bool operator()(const char *a, const char *b) const {
- return strcmp(a, b) < 0;
- }
-};
-
-typedef std::set<const char *, StringLess> StringSet;
-
-static void
-visitTag(struct client *client, StringSet &set,
- song &song, enum tag_type tagType)
+static bool
+PrintSongURIVisitor(struct client *client, song &song)
{
- struct tag *tag = song.tag;
- bool found = false;
-
- if (tagType == LOCATE_TAG_FILE_TYPE) {
- song_print_uri(client, &song);
- return;
- }
-
- if (!tag)
- return;
-
- for (unsigned i = 0; i < tag->num_items; i++) {
- if (tag->items[i]->type == tagType) {
- set.insert(tag->items[i]->value);
- found = true;
- }
- }
+ song_print_uri(client, &song);
- if (!found)
- set.insert("");
+ return true;
}
static bool
-unique_tags_visitor_song(struct client *client,
- enum tag_type tag_type,
- StringSet &set, song &song)
+PrintUniqueTag(struct client *client, enum tag_type tag_type,
+ const char *value)
{
- visitTag(client, set, song, tag_type);
-
+ client_printf(client, "%s: %s\n", tag_item_names[tag_type], value);
return true;
}
@@ -238,20 +208,16 @@ listAllUniqueTags(struct client *client, int type,
{
const DatabaseSelection selection("", true, criteria);
- StringSet set;
-
- using namespace std::placeholders;
- const auto f = std::bind(unique_tags_visitor_song, client,
- (enum tag_type)type, std::ref(set),
- _1);
- if (!GetDatabase()->Visit(selection, f, error_r))
- return false;
-
- if (type >= 0 && type <= TAG_NUM_OF_ITEM_TYPES)
- for (auto value : set)
- client_printf(client, "%s: %s\n",
- tag_item_names[type],
- value);
-
- return true;
+ if (type == LOCATE_TAG_FILE_TYPE) {
+ using namespace std::placeholders;
+ const auto f = std::bind(PrintSongURIVisitor, client, _1);
+ return GetDatabase()->Visit(selection, f, error_r);
+ } else {
+ using namespace std::placeholders;
+ const auto f = std::bind(PrintUniqueTag, client,
+ (enum tag_type)type, _1);
+ return GetDatabase()->VisitUniqueTags(selection,
+ (enum tag_type)type,
+ f, error_r);
+ }
}
diff --git a/src/DatabaseVisitor.hxx b/src/DatabaseVisitor.hxx
index 37b298a3c..10f907cef 100644
--- a/src/DatabaseVisitor.hxx
+++ b/src/DatabaseVisitor.hxx
@@ -33,4 +33,6 @@ typedef std::function<bool(struct song &, GError **)> VisitSong;
typedef std::function<bool(const playlist_metadata &, const directory &,
GError **)> VisitPlaylist;
+typedef std::function<bool(const char *, GError **)> VisitString;
+
#endif
diff --git a/src/db/ProxyDatabasePlugin.cxx b/src/db/ProxyDatabasePlugin.cxx
index 68ba5a542..f06728f80 100644
--- a/src/db/ProxyDatabasePlugin.cxx
+++ b/src/db/ProxyDatabasePlugin.cxx
@@ -62,6 +62,11 @@ public:
VisitPlaylist visit_playlist,
GError **error_r) const override;
+ virtual bool VisitUniqueTags(const DatabaseSelection &selection,
+ enum tag_type tag_type,
+ VisitString visit_string,
+ GError **error_r) const override;
+
protected:
bool Configure(const struct config_param *param, GError **error_r);
};
@@ -97,6 +102,17 @@ static constexpr struct {
{ TAG_NUM_OF_ITEM_TYPES, MPD_TAG_COUNT }
};
+G_GNUC_CONST
+static enum mpd_tag_type
+Convert(enum tag_type tag_type)
+{
+ for (auto i = tag_table; i->d != TAG_NUM_OF_ITEM_TYPES; ++i)
+ if (i->d == tag_type)
+ return i->s;
+
+ return MPD_TAG_COUNT;
+}
+
static bool
CheckError(const struct mpd_connection *connection, GError **error_r)
{
@@ -368,6 +384,42 @@ ProxyDatabase::Visit(const DatabaseSelection &selection,
return success;
}
+bool
+ProxyDatabase::VisitUniqueTags(const DatabaseSelection &selection,
+ enum tag_type tag_type,
+ VisitString visit_string,
+ GError **error_r) const
+{
+ enum mpd_tag_type tag_type2 = Convert(tag_type);
+ if (tag_type2 == MPD_TAG_COUNT) {
+ g_set_error_literal(error_r, libmpdclient_quark(), 0,
+ "Unsupported tag");
+ return false;
+ }
+
+ if (!mpd_search_db_tags(connection, tag_type2))
+ return CheckError(connection, error_r);
+
+ // TODO: match
+ (void)selection;
+
+ if (!mpd_search_commit(connection))
+ return CheckError(connection, error_r);
+
+ bool result = true;
+
+ struct mpd_pair *pair;
+ while (result &&
+ (pair = mpd_recv_pair_tag(connection, tag_type2)) != nullptr) {
+ result = visit_string(pair->value, error_r);
+ mpd_return_pair(connection, pair);
+ }
+
+ return mpd_response_finish(connection) &&
+ CheckError(connection, error_r) &&
+ result;
+}
+
const DatabasePlugin proxy_db_plugin = {
"proxy",
ProxyDatabase::Create,
diff --git a/src/db/SimpleDatabasePlugin.cxx b/src/db/SimpleDatabasePlugin.cxx
index a4077eb27..ed166de45 100644
--- a/src/db/SimpleDatabasePlugin.cxx
+++ b/src/db/SimpleDatabasePlugin.cxx
@@ -20,6 +20,7 @@
#include "config.h"
#include "SimpleDatabasePlugin.hxx"
#include "DatabaseSelection.hxx"
+#include "DatabaseHelpers.hxx"
extern "C" {
#include "db_error.h"
@@ -270,6 +271,16 @@ SimpleDatabase::Visit(const DatabaseSelection &selection,
}
bool
+SimpleDatabase::VisitUniqueTags(const DatabaseSelection &selection,
+ enum tag_type tag_type,
+ VisitString visit_string,
+ GError **error_r) const
+{
+ return ::VisitUniqueTags(*this, selection, tag_type, visit_string,
+ error_r);
+}
+
+bool
SimpleDatabase::Save(GError **error_r)
{
db_lock();
diff --git a/src/db/SimpleDatabasePlugin.hxx b/src/db/SimpleDatabasePlugin.hxx
index 1e990de13..0b7e838b5 100644
--- a/src/db/SimpleDatabasePlugin.hxx
+++ b/src/db/SimpleDatabasePlugin.hxx
@@ -66,6 +66,11 @@ public:
VisitPlaylist visit_playlist,
GError **error_r) const override;
+ virtual bool VisitUniqueTags(const DatabaseSelection &selection,
+ enum tag_type tag_type,
+ VisitString visit_string,
+ GError **error_r) const override;
+
protected:
bool Configure(const struct config_param *param, GError **error_r);
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-06 02:41:15 +0000