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| author | Max Kellermann <max@duempel.org> | 2012-08-15 23:28:19 +0200 |
|---|---|---|
| committer | Max Kellermann <max@duempel.org> | 2012-08-16 00:04:14 +0200 |
| commit | 3b8532f3fb379c7ecc6b64eecbbf9c824d18e875 (patch) | |
| tree | 3313a43df3f120b74166749fdd75b07fa89846ba /src/db | |
| parent | f45616e5f6f7d6aa0fb5ca90a0599eacddf1166b (diff) | |
| download | mpd-3b8532f3fb379c7ecc6b64eecbbf9c824d18e875.tar.gz mpd-3b8532f3fb379c7ecc6b64eecbbf9c824d18e875.tar.xz mpd-3b8532f3fb379c7ecc6b64eecbbf9c824d18e875.zip | |
DatabasePlugin: add method ReturnSong()
Allow the plugin to allocate the GetSong() return value.
Diffstat (limited to 'src/db')
| -rw-r--r-- | src/db/ProxyDatabasePlugin.cxx | 12 | ||||
| -rw-r--r-- | src/db/SimpleDatabasePlugin.cxx | 20 | ||||
| -rw-r--r-- | src/db/SimpleDatabasePlugin.hxx | 6 |
3 files changed, 38 insertions, 0 deletions
diff --git a/src/db/ProxyDatabasePlugin.cxx b/src/db/ProxyDatabasePlugin.cxx index 26e7b4b84..e27ca8291 100644 --- a/src/db/ProxyDatabasePlugin.cxx +++ b/src/db/ProxyDatabasePlugin.cxx @@ -56,6 +56,8 @@ public: virtual void Close() override; virtual struct song *GetSong(const char *uri_utf8, GError **error_r) const override; + virtual void ReturnSong(struct song *song) const; + virtual bool Visit(const DatabaseSelection &selection, VisitDirectory visit_directory, VisitSong visit_song, @@ -191,6 +193,16 @@ ProxyDatabase::GetSong(const char *uri, GError **error_r) const return nullptr; } +void +ProxyDatabase::ReturnSong(struct song *song) const +{ + assert(song != nullptr); + assert(song_in_database(song)); + assert(song_is_detached(song)); + + song_free(song); +} + static bool Visit(struct mpd_connection *connection, const char *uri, bool recursive, VisitDirectory visit_directory, VisitSong visit_song, diff --git a/src/db/SimpleDatabasePlugin.cxx b/src/db/SimpleDatabasePlugin.cxx index c1de70d3e..94318f4e9 100644 --- a/src/db/SimpleDatabasePlugin.cxx +++ b/src/db/SimpleDatabasePlugin.cxx @@ -184,6 +184,10 @@ SimpleDatabase::Open(GError **error_r) root = directory_new_root(); mtime = 0; +#ifndef NDEBUG + borrowed_song_count = 0; +#endif + GError *error = NULL; if (!Load(&error)) { directory_free(root); @@ -204,6 +208,7 @@ void SimpleDatabase::Close() { assert(root != NULL); + assert(borrowed_song_count == 0); directory_free(root); } @@ -219,10 +224,25 @@ SimpleDatabase::GetSong(const char *uri, GError **error_r) const if (song == NULL) g_set_error(error_r, db_quark(), DB_NOT_FOUND, "No such song: %s", uri); +#ifndef NDEBUG + else + ++const_cast<unsigned &>(borrowed_song_count); +#endif return song; } +void +SimpleDatabase::ReturnSong(gcc_unused struct song *song) const +{ + assert(song != nullptr); + +#ifndef NDEBUG + assert(borrowed_song_count > 0); + --const_cast<unsigned &>(borrowed_song_count); +#endif +} + G_GNUC_PURE const struct directory * SimpleDatabase::LookupDirectory(const char *uri) const diff --git a/src/db/SimpleDatabasePlugin.hxx b/src/db/SimpleDatabasePlugin.hxx index 7e3f5d2db..2ea5c4925 100644 --- a/src/db/SimpleDatabasePlugin.hxx +++ b/src/db/SimpleDatabasePlugin.hxx @@ -38,6 +38,10 @@ class SimpleDatabase : public Database { time_t mtime; +#ifndef NDEBUG + unsigned borrowed_song_count; +#endif + public: gcc_pure struct directory *GetRoot() { @@ -61,6 +65,8 @@ public: virtual struct song *GetSong(const char *uri_utf8, GError **error_r) const override; + virtual void ReturnSong(struct song *song) const; + virtual bool Visit(const DatabaseSelection &selection, VisitDirectory visit_directory, VisitSong visit_song, |