49 lines
782 B
Go
49 lines
782 B
Go
package imap
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import "sync"
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type SeqMap struct {
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lock sync.Mutex
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// map of IMAP sequence numbers to message UIDs
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m map[uint32]uint32
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}
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func (s *SeqMap) Size() int {
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s.lock.Lock()
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size := len(s.m)
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s.lock.Unlock()
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return size
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}
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func (s *SeqMap) Get(seqnum uint32) (uint32, bool) {
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s.lock.Lock()
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uid, found := s.m[seqnum]
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s.lock.Unlock()
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return uid, found
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}
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func (s *SeqMap) Put(seqnum, uid uint32) {
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s.lock.Lock()
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if s.m == nil {
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s.m = make(map[uint32]uint32)
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}
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s.m[seqnum] = uid
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s.lock.Unlock()
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}
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func (s *SeqMap) Pop(seqnum uint32) (uint32, bool) {
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s.lock.Lock()
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uid, found := s.m[seqnum]
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if found {
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delete(s.m, seqnum)
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}
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s.lock.Unlock()
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return uid, found
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}
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func (s *SeqMap) Clear() {
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s.lock.Lock()
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s.m = make(map[uint32]uint32)
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s.lock.Unlock()
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}
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