In song.go updated comments.
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@ -39,6 +39,8 @@ func (s *Song) MarshalJSON() ([]byte, error) {
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StartAt: s.StartAt.UTC().Format(time.RFC3339)})
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StartAt: s.StartAt.UTC().Format(time.RFC3339)})
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}
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}
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// SongList holds a currently playing song and a list of previously played ones
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// with a maximal length of maxLen.
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type SongList struct {
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type SongList struct {
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sync.RWMutex
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sync.RWMutex
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current Song
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current Song
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@ -69,7 +71,7 @@ func (sl *SongList) Add(newSong Song) {
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sl.current = newSong
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sl.current = newSong
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}
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}
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// Current returns a currently playing song.
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// Current returns a currently playing song or nil if it isn't set yet.
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func (sl *SongList) Current() *Song {
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func (sl *SongList) Current() *Song {
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sl.RLock()
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sl.RLock()
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defer sl.RUnlock()
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defer sl.RUnlock()
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@ -101,7 +103,7 @@ func (sl *SongList) List() []Song {
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return sl.lastSongs
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return sl.lastSongs
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}
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}
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// MaxLen returns a maximal length of a list
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// MaxLen returns a maximal length of a song list.
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func (sl *SongList) MaxLen() int {
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func (sl *SongList) MaxLen() int {
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return sl.maxLen
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return sl.maxLen
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}
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}
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