82 lines
2.8 KiB
Go
82 lines
2.8 KiB
Go
// Copyright 2016 The go-ethereum Authors
|
|
// This file is part of the go-ethereum library.
|
|
//
|
|
// The go-ethereum library is free software: you can redistribute it and/or modify
|
|
// it under the terms of the GNU Lesser General Public License as published by
|
|
// the Free Software Foundation, either version 3 of the License, or
|
|
// (at your option) any later version.
|
|
//
|
|
// The go-ethereum library is distributed in the hope that it will be useful,
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
// GNU Lesser General Public License for more details.
|
|
//
|
|
// You should have received a copy of the GNU Lesser General Public License
|
|
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
// Contains all the wrappers from the golang.org/x/net/context package to support
|
|
// client side context management on mobile platforms.
|
|
|
|
package geth
|
|
|
|
import (
|
|
"time"
|
|
|
|
"golang.org/x/net/context"
|
|
)
|
|
|
|
// Context carries a deadline, a cancelation signal, and other values across API
|
|
// boundaries.
|
|
type Context struct {
|
|
context context.Context
|
|
cancel context.CancelFunc
|
|
}
|
|
|
|
// NewContext returns a non-nil, empty Context. It is never canceled, has no
|
|
// values, and has no deadline. It is typically used by the main function,
|
|
// initialization, and tests, and as the top-level Context for incoming requests.
|
|
func NewContext() *Context {
|
|
return &Context{
|
|
context: context.Background(),
|
|
}
|
|
}
|
|
|
|
// WithCancel returns a copy of the original context with cancellation mechanism
|
|
// included.
|
|
//
|
|
// Canceling this context releases resources associated with it, so code should
|
|
// call cancel as soon as the operations running in this Context complete.
|
|
func (c *Context) WithCancel() *Context {
|
|
child, cancel := context.WithCancel(c.context)
|
|
return &Context{
|
|
context: child,
|
|
cancel: cancel,
|
|
}
|
|
}
|
|
|
|
// WithDeadline returns a copy of the original context with the deadline adjusted
|
|
// to be no later than the specified time.
|
|
//
|
|
// Canceling this context releases resources associated with it, so code should
|
|
// call cancel as soon as the operations running in this Context complete.
|
|
func (c *Context) WithDeadline(sec int64, nsec int64) *Context {
|
|
child, cancel := context.WithDeadline(c.context, time.Unix(sec, nsec))
|
|
return &Context{
|
|
context: child,
|
|
cancel: cancel,
|
|
}
|
|
}
|
|
|
|
// WithTimeout returns a copy of the original context with the deadline adjusted
|
|
// to be no later than now + the duration specified.
|
|
//
|
|
// Canceling this context releases resources associated with it, so code should
|
|
// call cancel as soon as the operations running in this Context complete.
|
|
func (c *Context) WithTimeout(nsec int64) *Context {
|
|
child, cancel := context.WithTimeout(c.context, time.Duration(nsec))
|
|
return &Context{
|
|
context: child,
|
|
cancel: cancel,
|
|
}
|
|
}
|