mirror of https://github.com/milvus-io/milvus.git
46 lines
1.0 KiB
Go
46 lines
1.0 KiB
Go
package state
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type LoadStateLockGuard interface {
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Done(err error)
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}
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// newLoadStateLockGuard creates a LoadStateGuard.
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func newLoadStateLockGuard(ls *LoadStateLock, original loadStateEnum, target loadStateEnum) *loadStateLockGuard {
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return &loadStateLockGuard{
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ls: ls,
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original: original,
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target: target,
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}
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}
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// loadStateLockGuard is a guard to update the state of LoadState.
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type loadStateLockGuard struct {
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ls *LoadStateLock
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original loadStateEnum
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target loadStateEnum
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}
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// Done updates the state of LoadState to target state.
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func (g *loadStateLockGuard) Done(err error) {
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g.ls.cv.L.Lock()
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g.ls.cv.Broadcast()
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defer g.ls.cv.L.Unlock()
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if err != nil {
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g.ls.state = g.original
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return
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}
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g.ls.state = g.target
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}
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// newNopLoadStateLockGuard creates a LoadStateLockGuard that does nothing.
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func newNopLoadStateLockGuard() LoadStateLockGuard {
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return nopLockGuard{}
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}
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// nopLockGuard is a guard that does nothing.
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type nopLockGuard struct{}
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// Done does nothing.
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func (nopLockGuard) Done(err error) {}
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