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zeekay
5a601d081b
Full module path rebrand from Temporal to Hanzo Tasks: - go.mod module: github.com/hanzoai/tasks - All internal Go imports updated (1906 files) - cmd/server renamed to cmd/tasksd - Binary name: tasksd (was temporal-server) - Docker images: hanzoai/tasks (was temporalio/server) - README rewritten with Hanzo Tasks branding - LLM.md created with integration notes - Makefile, goreleaser, CI workflows updated - go.temporal.io/sdk and go.temporal.io/api imports preserved (separate repos) Fork of Temporal.io (MIT license).
88 lines
2.5 KiB
Go
88 lines
2.5 KiB
Go
package circuitbreaker
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import (
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"sync"
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"sync/atomic"
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"github.com/sony/gobreaker"
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"github.com/hanzoai/tasks/common/dynamicconfig"
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)
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type (
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TwoStepCircuitBreaker interface {
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Name() string
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State() gobreaker.State
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Counts() gobreaker.Counts
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Allow() (done func(success bool), err error)
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}
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// TwoStepCircuitBreakerWithDynamicSettings is a wrapper of gobreaker.TwoStepCircuitBreaker
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// that calls the settingsFn everytime the Allow function is called and replaces the circuit
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// breaker if there is a change in the settings object. Note that in this case, the previous
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// state of the circuit breaker is lost.
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TwoStepCircuitBreakerWithDynamicSettings struct {
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name string
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readyToTrip func(counts gobreaker.Counts) bool
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onStateChange func(name string, from gobreaker.State, to gobreaker.State)
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cb atomic.Pointer[gobreaker.TwoStepCircuitBreaker]
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cbLock sync.Mutex
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settings dynamicconfig.CircuitBreakerSettings
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}
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Settings struct {
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// For the following options, check gobreaker docs for details.
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Name string
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ReadyToTrip func(counts gobreaker.Counts) bool
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OnStateChange func(name string, from gobreaker.State, to gobreaker.State)
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}
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)
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var _ TwoStepCircuitBreaker = (*TwoStepCircuitBreakerWithDynamicSettings)(nil)
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// Caller must call UpdateSettings once before using this object.
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func NewTwoStepCircuitBreakerWithDynamicSettings(
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settings Settings,
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) *TwoStepCircuitBreakerWithDynamicSettings {
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return &TwoStepCircuitBreakerWithDynamicSettings{
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name: settings.Name,
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readyToTrip: settings.ReadyToTrip,
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onStateChange: settings.OnStateChange,
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}
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}
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func (c *TwoStepCircuitBreakerWithDynamicSettings) UpdateSettings(
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ds dynamicconfig.CircuitBreakerSettings,
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) {
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c.cbLock.Lock()
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defer c.cbLock.Unlock()
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if c.cb.Load() != nil && ds == c.settings {
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return // no change
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}
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c.settings = ds
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c.cb.Store(gobreaker.NewTwoStepCircuitBreaker(gobreaker.Settings{
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Name: c.name,
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MaxRequests: uint32(ds.MaxRequests),
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Interval: ds.Interval,
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Timeout: ds.Timeout,
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ReadyToTrip: c.readyToTrip,
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OnStateChange: c.onStateChange,
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}))
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}
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func (c *TwoStepCircuitBreakerWithDynamicSettings) Name() string {
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return c.cb.Load().Name()
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}
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func (c *TwoStepCircuitBreakerWithDynamicSettings) State() gobreaker.State {
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return c.cb.Load().State()
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}
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func (c *TwoStepCircuitBreakerWithDynamicSettings) Counts() gobreaker.Counts {
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return c.cb.Load().Counts()
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}
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func (c *TwoStepCircuitBreakerWithDynamicSettings) Allow() (done func(success bool), err error) {
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return c.cb.Load().Allow()
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}
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