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shareable: Refactoring

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This commit is contained in:
Hajime Hoshi 2019-08-26 00:32:30 +09:00
parent 464713f19d
commit 76330c492c
1 changed files with 10 additions and 9 deletions
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19
internal/shareable/shareable.go
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@ -139,6 +139,14 @@ var (
)
func init() {
// Lock the mutex before a frame begins.
//
// In each frame, restoring images and resolving images happen respectively:
//
// [Restore -> Resolve] -> [Restore -> Resolve] -> ...
//
// Between each frame, any image operations are not permitted, or stale images would remain when restoring
// (#913).
backendsM.Lock()
}
@ -564,20 +572,13 @@ func NewScreenFramebufferImage(width, height int) *Image {
func EndFrame() error {
backendsM.Lock()
restorable.ResolveStaleImages()
return restorable.Error()
}
func BeginFrame() error {
// In each frame, restoring images and resolving images happen respectively:
//
// [Restore -> Resolve] -> [Restore -> Resolve] -> ...
//
// Between each frame, any image operations are not permitted, or stale images would remain when restoring
// (#913).
defer func() {
backendsM.Unlock()
}()
defer backendsM.Unlock()
var err error
initOnce.Do(func() {