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native_environment.go
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/
native_environment.go
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package circuit
import (
"github.com/operable/circuit-driver/api"
)
type nativeEnvironment struct {
options CreateEnvironmentOptions
requests chan api.ExecRequest
results chan api.ExecResult
control chan byte
userData EnvironmentUserData
driver api.Driver
isDead bool
}
func (ne *nativeEnvironment) init(options CreateEnvironmentOptions) error {
ne.options = options
ne.driver = api.BlockingDriver{}
ne.requests = make(chan api.ExecRequest)
ne.results = make(chan api.ExecResult)
ne.control = make(chan byte)
go func() {
ne.runWorker()
}()
return nil
}
func (ne *nativeEnvironment) runWorker() {
for {
select {
case <-ne.control:
break
case request := <-ne.requests:
result, _ := ne.driver.Run(&request)
ne.results <- result
}
}
}
func (ne *nativeEnvironment) GetKind() EnvironmentKind {
return NativeKind
}
func (ne *nativeEnvironment) SetUserData(data EnvironmentUserData) error {
if ne.isDead {
return ErrorDeadEnvironment
}
ne.userData = data
return nil
}
func (ne *nativeEnvironment) GetUserData() (EnvironmentUserData, error) {
if ne.isDead {
return nil, ErrorDeadEnvironment
}
return ne.userData, nil
}
func (ne *nativeEnvironment) GetMetadata() EnvironmentMetadata {
return EnvironmentMetadata{
"bundle": ne.options.Bundle,
}
}
func (ne *nativeEnvironment) Run(request api.ExecRequest) (api.ExecResult, error) {
if ne.isDead {
return EmptyExecResult, ErrorDeadEnvironment
}
ne.requests <- request
result := <-ne.results
return result, nil
}
func (ne *nativeEnvironment) Shutdown() error {
if ne.isDead {
return ErrorDeadEnvironment
}
ne.control <- 1
ne.isDead = true
return nil
}