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env.go
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env.go
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// Copyright 2017 Istio Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package runtime
import (
"istio.io/istio/mixer/pkg/adapter"
"istio.io/istio/mixer/pkg/pool"
)
type env struct {
logger adapter.Logger
gp *pool.GoroutinePool
}
func newEnv(name string, gp *pool.GoroutinePool) adapter.Env {
return env{
logger: newLogger(name),
gp: gp,
}
}
func (e env) Logger() adapter.Logger {
return e.logger
}
func (e env) ScheduleWork(fn adapter.WorkFunc) {
e.gp.ScheduleWork(func(_ interface{}) {
defer func() {
if r := recover(); r != nil {
_ = e.Logger().Errorf("Adapter worker failed: %v", r) // nolint: gas
// TODO: Beyond logging, we want to do something proactive here.
// For example, we want to probably terminate the originating
// adapter and record the failure so we can count how often
// it happens, etc.
}
}()
fn()
}, nil)
}
func (e env) ScheduleDaemon(fn adapter.DaemonFunc) {
go func() {
defer func() {
if r := recover(); r != nil {
_ = e.Logger().Errorf("Adapter daemon failed: %v", r) // nolint: gas
// TODO: Beyond logging, we want to do something proactive here.
// For example, we want to probably terminate the originating
// adapter and record the failure so we can count how often
// it happens, etc.
}
}()
fn()
}()
}