2782b7815e
While fixing this code, the dirty flag was also cleared so that unneeded syncs wouldn't be needed later. The dirty flag set and sync was also added for the 'getnewaddress' handler, as it was previously missing.
108 lines
2.9 KiB
Go
108 lines
2.9 KiB
Go
/*
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* Copyright (c) 2013 Conformal Systems LLC <info@conformal.com>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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package main
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import (
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"fmt"
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"os"
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"path/filepath"
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"time"
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)
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// writeDirtyToDisk checks for the dirty flag on an account's wallet,
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// txstore, and utxostore, writing them to disk if any are dirty.
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func (w *BtcWallet) writeDirtyToDisk() error {
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fmt.Println("entered")
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// Temporary files append the current time to the normal file name.
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// In caes of failure, the most recent temporary file can be inspected
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// for validity, and moved to replace the main file.
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timeStr := fmt.Sprintf("%v", time.Now().Unix())
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wdir := walletdir(cfg, w.name)
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wfilepath := filepath.Join(wdir, "wallet.bin")
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txfilepath := filepath.Join(wdir, "tx.bin")
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utxofilepath := filepath.Join(wdir, "utxo.bin")
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// Wallet
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if w.dirty {
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w.mtx.Lock()
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defer w.mtx.Unlock()
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tmpfilepath := wfilepath + "-" + timeStr
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tmpfile, err := os.Create(tmpfilepath)
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if err != nil {
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return err
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}
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if _, err = w.WriteTo(tmpfile); err != nil {
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return err
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}
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// TODO(jrick): this should be atomic on *nix, but is not on
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// Windows. Use _windows.go to provide atomic renames.
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if err = os.Rename(tmpfilepath, wfilepath); err != nil {
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return err
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}
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w.dirty = false
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}
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// Transactions
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if w.TxStore.dirty {
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w.TxStore.Lock()
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defer w.TxStore.Unlock()
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tmpfilepath := txfilepath + "-" + timeStr
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tmpfile, err := os.Create(tmpfilepath)
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if err != nil {
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return err
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}
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if _, err = w.TxStore.s.WriteTo(tmpfile); err != nil {
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return err
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}
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// TODO(jrick): this should be atomic on *nix, but is not on
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// Windows. Use _windows.go to provide atomic renames.
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if err = os.Rename(tmpfilepath, txfilepath); err != nil {
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return err
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}
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w.TxStore.dirty = false
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}
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// UTXOs
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if w.UtxoStore.dirty {
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w.UtxoStore.Lock()
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defer w.UtxoStore.Unlock()
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tmpfilepath := utxofilepath + "-" + timeStr
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tmpfile, err := os.Create(tmpfilepath)
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if err != nil {
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return err
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}
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if _, err = w.UtxoStore.s.WriteTo(tmpfile); err != nil {
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return err
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}
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// TODO(jrick): this should be atomic on *nix, but is not on
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// Windows. Use _windows.go to provide atomic renames.
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if err = os.Rename(tmpfilepath, utxofilepath); err != nil {
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return err
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}
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w.UtxoStore.dirty = false
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}
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return nil
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}
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