Merge pull request #201 from Bytom/v0.1

[bytom/vapor.git] / vendor / github.com / btcsuite / btcd / blockchain / notifications.go

diff --git a/vendor/github.com/btcsuite/btcd/blockchain/notifications.go b/vendor/github.com/btcsuite/btcd/blockchain/notifications.go
deleted file mode 100644 (file)
index 25cc4f1..0000000
--- a/vendor/github.com/btcsuite/btcd/blockchain/notifications.go
+++ /dev/null
@@ -1,81 +0,0 @@
-// Copyright (c) 2013-2016 The btcsuite developers
-// Use of this source code is governed by an ISC
-// license that can be found in the LICENSE file.
-
-package blockchain
-
-import (
-       "fmt"
-)
-
-// NotificationType represents the type of a notification message.
-type NotificationType int
-
-// NotificationCallback is used for a caller to provide a callback for
-// notifications about various chain events.
-type NotificationCallback func(*Notification)
-
-// Constants for the type of a notification message.
-const (
-       // NTBlockAccepted indicates the associated block was accepted into
-       // the block chain.  Note that this does not necessarily mean it was
-       // added to the main chain.  For that, use NTBlockConnected.
-       NTBlockAccepted NotificationType = iota
-
-       // NTBlockConnected indicates the associated block was connected to the
-       // main chain.
-       NTBlockConnected
-
-       // NTBlockDisconnected indicates the associated block was disconnected
-       // from the main chain.
-       NTBlockDisconnected
-)
-
-// notificationTypeStrings is a map of notification types back to their constant
-// names for pretty printing.
-var notificationTypeStrings = map[NotificationType]string{
-       NTBlockAccepted:     "NTBlockAccepted",
-       NTBlockConnected:    "NTBlockConnected",
-       NTBlockDisconnected: "NTBlockDisconnected",
-}
-
-// String returns the NotificationType in human-readable form.
-func (n NotificationType) String() string {
-       if s, ok := notificationTypeStrings[n]; ok {
-               return s
-       }
-       return fmt.Sprintf("Unknown Notification Type (%d)", int(n))
-}
-
-// Notification defines notification that is sent to the caller via the callback
-// function provided during the call to New and consists of a notification type
-// as well as associated data that depends on the type as follows:
-//     - NTBlockAccepted:     *btcutil.Block
-//     - NTBlockConnected:    *btcutil.Block
-//     - NTBlockDisconnected: *btcutil.Block
-type Notification struct {
-       Type NotificationType
-       Data interface{}
-}
-
-// Subscribe to block chain notifications. Registers a callback to be executed
-// when various events take place. See the documentation on Notification and
-// NotificationType for details on the types and contents of notifications.
-func (b *BlockChain) Subscribe(callback NotificationCallback) {
-       b.notificationsLock.Lock()
-       b.notifications = append(b.notifications, callback)
-       b.notificationsLock.Unlock()
-}
-
-// sendNotification sends a notification with the passed type and data if the
-// caller requested notifications by providing a callback function in the call
-// to New.
-func (b *BlockChain) sendNotification(typ NotificationType, data interface{}) {
-       // Generate and send the notification.
-       n := Notification{Type: typ, Data: data}
-       b.notificationsLock.RLock()
-       for _, callback := range b.notifications {
-               callback(&n)
-       }
-       b.notificationsLock.RUnlock()
-}