76 lines
1.9 KiB
Go
76 lines
1.9 KiB
Go
package prox5
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import (
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"context"
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"errors"
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"strings"
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"sync/atomic"
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)
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// SwampStatus represents the current state of our ProxyEngine.
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type SwampStatus uint32
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const (
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// StateRunning means the proxy pool is currently taking in proxys and validating them, and is available to dispense proxies.
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StateRunning SwampStatus = iota
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// StatePaused means the proxy pool has been with ProxyEngine.Pause() and may be resumed with Swamp.Resume()
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StatePaused
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// StateNew means the proxy pool has never been started.
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StateNew
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)
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// Start starts our proxy pool operations. Trying to start a running ProxyEngine will return an error.
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func (pe *ProxyEngine) Start() error {
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if atomic.LoadUint32(&pe.Status) != uint32(StateNew) {
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return pe.Resume()
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}
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pe.startDaemons()
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return nil
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}
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/*
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Pause will cease the creation of any new proxy validation operations.
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* You will be able to start the proxy pool again with Swamp.Resume(), it will have the same Statistics, options, and ratelimits.
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* During pause you are still able to dispense proxies.
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* Options may be changed and proxy lists may be loaded when paused.
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* Pausing an already paused ProxyEngine is a nonop.
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*/
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func (pe *ProxyEngine) Pause() error {
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if !pe.IsRunning() {
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return errors.New("not running")
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}
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buf := copABuffer.Get().(*strings.Builder)
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buf.WriteString("pausing...")
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pe.dbgPrint(buf)
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pe.quit()
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atomic.StoreUint32(&pe.Status, uint32(StatePaused))
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return nil
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}
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func (pe *ProxyEngine) startDaemons() {
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go pe.mapBuilder()
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<-pe.conductor
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pe.svcUp()
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go pe.jobSpawner()
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for {
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if pe.IsRunning() {
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atomic.StoreUint32(&pe.Status, uint32(StateRunning))
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break
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}
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}
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}
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// Resume will resume pause proxy pool operations, attempting to resume a running ProxyEngine is returns an error.
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func (pe *ProxyEngine) Resume() error {
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if pe.IsRunning() {
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return errors.New("already running")
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}
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pe.ctx, pe.quit = context.WithCancel(context.Background())
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pe.startDaemons()
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return nil
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}
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