go-ethereum/vendor/google.golang.org/appengine/internal/internal.go
Rafael Matias 388d8ccd9f
PoC: Network simulation framework (#1555)
* simv2: wip

* simulation: exec adapter start/stop

* simulation: add node status to exec adapter

* simulation: initial simulation code

* simulation: exec adapter, configure path to executable

* simulation: initial docker adapter

* simulation: wip kubernetes adapter

* simulation: kubernetes adapter proxy

* simulation: implement GetAll/StartAll/StopAll

* simulation: kuberentes adapter - set env vars and resource limits

* simulation: discovery test

* simulation: remove port definitions within docker adapter

* simulation: simplify wait for healthy loop

* simulation: get nat ip addr from interface

* simulation: pull docker images automatically

* simulation: NodeStatus -> NodeInfo

* simulation: move discovery test to example dir

* simulation: example snapshot usage

* simulation: add goclient specific simulation

* simulation: add peer connections to snapshot

* simulation: close rpc client

* simulation: don't export kubernetes proxy server

* simulation: merge simulation code

* simulation: don't export nodemap

* simulation: rename SimulationSnapshot -> Snapshot

* simulation: linting fixes

* simulation: add k8s available helper func

* simulation: vendor

* simulation: fix 'no non-test Go files' when building

* simulation: remove errors from interface methods where non were returned

* simulation: run getHealthInfo check in parallel
2019-07-24 17:00:13 +02:00

110 lines
3.1 KiB
Go

// Copyright 2011 Google Inc. All rights reserved.
// Use of this source code is governed by the Apache 2.0
// license that can be found in the LICENSE file.
// Package internal provides support for package appengine.
//
// Programs should not use this package directly. Its API is not stable.
// Use packages appengine and appengine/* instead.
package internal
import (
"fmt"
"github.com/golang/protobuf/proto"
remotepb "google.golang.org/appengine/internal/remote_api"
)
// errorCodeMaps is a map of service name to the error code map for the service.
var errorCodeMaps = make(map[string]map[int32]string)
// RegisterErrorCodeMap is called from API implementations to register their
// error code map. This should only be called from init functions.
func RegisterErrorCodeMap(service string, m map[int32]string) {
errorCodeMaps[service] = m
}
type timeoutCodeKey struct {
service string
code int32
}
// timeoutCodes is the set of service+code pairs that represent timeouts.
var timeoutCodes = make(map[timeoutCodeKey]bool)
func RegisterTimeoutErrorCode(service string, code int32) {
timeoutCodes[timeoutCodeKey{service, code}] = true
}
// APIError is the type returned by appengine.Context's Call method
// when an API call fails in an API-specific way. This may be, for instance,
// a taskqueue API call failing with TaskQueueServiceError::UNKNOWN_QUEUE.
type APIError struct {
Service string
Detail string
Code int32 // API-specific error code
}
func (e *APIError) Error() string {
if e.Code == 0 {
if e.Detail == "" {
return "APIError <empty>"
}
return e.Detail
}
s := fmt.Sprintf("API error %d", e.Code)
if m, ok := errorCodeMaps[e.Service]; ok {
s += " (" + e.Service + ": " + m[e.Code] + ")"
} else {
// Shouldn't happen, but provide a bit more detail if it does.
s = e.Service + " " + s
}
if e.Detail != "" {
s += ": " + e.Detail
}
return s
}
func (e *APIError) IsTimeout() bool {
return timeoutCodes[timeoutCodeKey{e.Service, e.Code}]
}
// CallError is the type returned by appengine.Context's Call method when an
// API call fails in a generic way, such as RpcError::CAPABILITY_DISABLED.
type CallError struct {
Detail string
Code int32
// TODO: Remove this if we get a distinguishable error code.
Timeout bool
}
func (e *CallError) Error() string {
var msg string
switch remotepb.RpcError_ErrorCode(e.Code) {
case remotepb.RpcError_UNKNOWN:
return e.Detail
case remotepb.RpcError_OVER_QUOTA:
msg = "Over quota"
case remotepb.RpcError_CAPABILITY_DISABLED:
msg = "Capability disabled"
case remotepb.RpcError_CANCELLED:
msg = "Canceled"
default:
msg = fmt.Sprintf("Call error %d", e.Code)
}
s := msg + ": " + e.Detail
if e.Timeout {
s += " (timeout)"
}
return s
}
func (e *CallError) IsTimeout() bool {
return e.Timeout
}
// NamespaceMods is a map from API service to a function that will mutate an RPC request to attach a namespace.
// The function should be prepared to be called on the same message more than once; it should only modify the
// RPC request the first time.
var NamespaceMods = make(map[string]func(m proto.Message, namespace string))