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f40800b3a4
This is part of a general effort to move all of Terraform's non-library package surface under internal in order to reinforce that these are for internal use within Terraform only. If you were previously importing packages under this prefix into an external codebase, you could pin to an earlier release tag as an interim solution until you've make a plan to achieve the same functionality some other way.
42 lines
960 B
Go
42 lines
960 B
Go
package statemgr
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import (
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"sync"
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"github.com/hashicorp/terraform/internal/states"
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)
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// NewTransientInMemory returns a Transient implementation that retains
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// transient snapshots only in memory, as part of the object.
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//
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// The given initial state, if any, must not be modified concurrently while
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// this function is running, but may be freely modified once this function
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// returns without affecting the stored transient snapshot.
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func NewTransientInMemory(initial *states.State) Transient {
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return &transientInMemory{
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current: initial.DeepCopy(),
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}
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}
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type transientInMemory struct {
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lock sync.RWMutex
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current *states.State
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}
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var _ Transient = (*transientInMemory)(nil)
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func (m *transientInMemory) State() *states.State {
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m.lock.RLock()
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defer m.lock.RUnlock()
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return m.current.DeepCopy()
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}
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func (m *transientInMemory) WriteState(new *states.State) error {
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m.lock.Lock()
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defer m.lock.Unlock()
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m.current = new.DeepCopy()
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return nil
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}
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