mirror of
https://github.com/octoleo/syncthing.git
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534 lines
16 KiB
Go
534 lines
16 KiB
Go
// Copyright (C) 2014 The Syncthing Authors.
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//
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// This Source Code Form is subject to the terms of the Mozilla Public
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// License, v. 2.0. If a copy of the MPL was not distributed with this file,
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// You can obtain one at http://mozilla.org/MPL/2.0/.
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package model
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import (
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"os"
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"path/filepath"
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"testing"
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"time"
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"github.com/syncthing/protocol"
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"github.com/syncthing/syncthing/internal/scanner"
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"github.com/syndtr/goleveldb/leveldb"
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"github.com/syndtr/goleveldb/leveldb/storage"
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)
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func init() {
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// We do this to make sure that the temp file required for the tests does
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// not get removed during the tests.
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future := time.Now().Add(time.Hour)
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err := os.Chtimes(filepath.Join("testdata", defTempNamer.TempName("file")), future, future)
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if err != nil {
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panic(err)
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}
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}
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var blocks = []protocol.BlockInfo{
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{Hash: []uint8{0xfa, 0x43, 0x23, 0x9b, 0xce, 0xe7, 0xb9, 0x7c, 0xa6, 0x2f, 0x0, 0x7c, 0xc6, 0x84, 0x87, 0x56, 0xa, 0x39, 0xe1, 0x9f, 0x74, 0xf3, 0xdd, 0xe7, 0x48, 0x6d, 0xb3, 0xf9, 0x8d, 0xf8, 0xe4, 0x71}}, // Zero'ed out block
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{Offset: 0, Size: 0x20000, Hash: []uint8{0x7e, 0xad, 0xbc, 0x36, 0xae, 0xbb, 0xcf, 0x74, 0x43, 0xe2, 0x7a, 0x5a, 0x4b, 0xb8, 0x5b, 0xce, 0xe6, 0x9e, 0x1e, 0x10, 0xf9, 0x8a, 0xbc, 0x77, 0x95, 0x2, 0x29, 0x60, 0x9e, 0x96, 0xae, 0x6c}},
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{Offset: 131072, Size: 0x20000, Hash: []uint8{0x3c, 0xc4, 0x20, 0xf4, 0xb, 0x2e, 0xcb, 0xb9, 0x5d, 0xce, 0x34, 0xa8, 0xc3, 0x92, 0xea, 0xf3, 0xda, 0x88, 0x33, 0xee, 0x7a, 0xb6, 0xe, 0xf1, 0x82, 0x5e, 0xb0, 0xa9, 0x26, 0xa9, 0xc0, 0xef}},
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{Offset: 262144, Size: 0x20000, Hash: []uint8{0x76, 0xa8, 0xc, 0x69, 0xd7, 0x5c, 0x52, 0xfd, 0xdf, 0x55, 0xef, 0x44, 0xc1, 0xd6, 0x25, 0x48, 0x4d, 0x98, 0x48, 0x4d, 0xaa, 0x50, 0xf6, 0x6b, 0x32, 0x47, 0x55, 0x81, 0x6b, 0xed, 0xee, 0xfb}},
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{Offset: 393216, Size: 0x20000, Hash: []uint8{0x44, 0x1e, 0xa4, 0xf2, 0x8d, 0x1f, 0xc3, 0x1b, 0x9d, 0xa5, 0x18, 0x5e, 0x59, 0x1b, 0xd8, 0x5c, 0xba, 0x7d, 0xb9, 0x8d, 0x70, 0x11, 0x5c, 0xea, 0xa1, 0x57, 0x4d, 0xcb, 0x3c, 0x5b, 0xf8, 0x6c}},
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{Offset: 524288, Size: 0x20000, Hash: []uint8{0x8, 0x40, 0xd0, 0x5e, 0x80, 0x0, 0x0, 0x7c, 0x8b, 0xb3, 0x8b, 0xf7, 0x7b, 0x23, 0x26, 0x28, 0xab, 0xda, 0xcf, 0x86, 0x8f, 0xc2, 0x8a, 0x39, 0xc6, 0xe6, 0x69, 0x59, 0x97, 0xb6, 0x1a, 0x43}},
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{Offset: 655360, Size: 0x20000, Hash: []uint8{0x38, 0x8e, 0x44, 0xcb, 0x30, 0xd8, 0x90, 0xf, 0xce, 0x7, 0x4b, 0x58, 0x86, 0xde, 0xce, 0x59, 0xa2, 0x46, 0xd2, 0xf9, 0xba, 0xaf, 0x35, 0x87, 0x38, 0xdf, 0xd2, 0xd, 0xf9, 0x45, 0xed, 0x91}},
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{Offset: 786432, Size: 0x20000, Hash: []uint8{0x32, 0x28, 0xcd, 0xf, 0x37, 0x21, 0xe5, 0xd4, 0x1e, 0x58, 0x87, 0x73, 0x8e, 0x36, 0xdf, 0xb2, 0x70, 0x78, 0x56, 0xc3, 0x42, 0xff, 0xf7, 0x8f, 0x37, 0x95, 0x0, 0x26, 0xa, 0xac, 0x54, 0x72}},
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{Offset: 917504, Size: 0x20000, Hash: []uint8{0x96, 0x6b, 0x15, 0x6b, 0xc4, 0xf, 0x19, 0x18, 0xca, 0xbb, 0x5f, 0xd6, 0xbb, 0xa2, 0xc6, 0x2a, 0xac, 0xbb, 0x8a, 0xb9, 0xce, 0xec, 0x4c, 0xdb, 0x78, 0xec, 0x57, 0x5d, 0x33, 0xf9, 0x8e, 0xaf}},
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}
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// Layout of the files: (indexes from the above array)
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// 12345678 - Required file
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// 02005008 - Existing file (currently in the index)
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// 02340070 - Temp file on the disk
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func TestHandleFile(t *testing.T) {
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// After the diff between required and existing we should:
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// Copy: 2, 5, 8
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// Pull: 1, 3, 4, 6, 7
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// Create existing file
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existingFile := protocol.FileInfo{
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Name: "filex",
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Flags: 0,
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Modified: 0,
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Blocks: []protocol.BlockInfo{
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blocks[0], blocks[2], blocks[0], blocks[0],
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blocks[5], blocks[0], blocks[0], blocks[8],
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},
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}
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// Create target file
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requiredFile := existingFile
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requiredFile.Blocks = blocks[1:]
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db, _ := leveldb.Open(storage.NewMemStorage(), nil)
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m := NewModel(defaultConfig, protocol.LocalDeviceID, "device", "syncthing", "dev", db)
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m.AddFolder(defaultFolderConfig)
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// Update index
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m.updateLocals("default", []protocol.FileInfo{existingFile})
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p := rwFolder{
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folder: "default",
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dir: "testdata",
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model: m,
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}
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copyChan := make(chan copyBlocksState, 1)
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p.handleFile(requiredFile, copyChan, nil)
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// Receive the results
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toCopy := <-copyChan
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if len(toCopy.blocks) != 8 {
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t.Errorf("Unexpected count of copy blocks: %d != 8", len(toCopy.blocks))
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}
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for i, block := range toCopy.blocks {
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if string(block.Hash) != string(blocks[i+1].Hash) {
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t.Errorf("Block mismatch: %s != %s", block.String(), blocks[i+1].String())
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}
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}
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}
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func TestHandleFileWithTemp(t *testing.T) {
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// After diff between required and existing we should:
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// Copy: 2, 5, 8
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// Pull: 1, 3, 4, 6, 7
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// After dropping out blocks already on the temp file we should:
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// Copy: 5, 8
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// Pull: 1, 6
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// Create existing file
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existingFile := protocol.FileInfo{
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Name: "file",
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Flags: 0,
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Modified: 0,
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Blocks: []protocol.BlockInfo{
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blocks[0], blocks[2], blocks[0], blocks[0],
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blocks[5], blocks[0], blocks[0], blocks[8],
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},
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}
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// Create target file
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requiredFile := existingFile
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requiredFile.Blocks = blocks[1:]
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db, _ := leveldb.Open(storage.NewMemStorage(), nil)
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m := NewModel(defaultConfig, protocol.LocalDeviceID, "device", "syncthing", "dev", db)
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m.AddFolder(defaultFolderConfig)
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// Update index
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m.updateLocals("default", []protocol.FileInfo{existingFile})
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p := rwFolder{
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folder: "default",
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dir: "testdata",
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model: m,
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}
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copyChan := make(chan copyBlocksState, 1)
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p.handleFile(requiredFile, copyChan, nil)
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// Receive the results
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toCopy := <-copyChan
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if len(toCopy.blocks) != 4 {
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t.Errorf("Unexpected count of copy blocks: %d != 4", len(toCopy.blocks))
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}
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for i, eq := range []int{1, 5, 6, 8} {
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if string(toCopy.blocks[i].Hash) != string(blocks[eq].Hash) {
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t.Errorf("Block mismatch: %s != %s", toCopy.blocks[i].String(), blocks[eq].String())
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}
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}
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}
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func TestCopierFinder(t *testing.T) {
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// After diff between required and existing we should:
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// Copy: 1, 2, 3, 4, 6, 7, 8
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// Since there is no existing file, nor a temp file
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// After dropping out blocks found locally:
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// Pull: 1, 5, 6, 8
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tempFile := filepath.Join("testdata", defTempNamer.TempName("file2"))
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err := os.Remove(tempFile)
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if err != nil && !os.IsNotExist(err) {
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t.Error(err)
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}
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// Create existing file
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existingFile := protocol.FileInfo{
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Name: defTempNamer.TempName("file"),
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Flags: 0,
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Modified: 0,
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Blocks: []protocol.BlockInfo{
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blocks[0], blocks[2], blocks[3], blocks[4],
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blocks[0], blocks[0], blocks[7], blocks[0],
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},
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}
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// Create target file
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requiredFile := existingFile
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requiredFile.Blocks = blocks[1:]
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requiredFile.Name = "file2"
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db, _ := leveldb.Open(storage.NewMemStorage(), nil)
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m := NewModel(defaultConfig, protocol.LocalDeviceID, "device", "syncthing", "dev", db)
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m.AddFolder(defaultFolderConfig)
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// Update index
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m.updateLocals("default", []protocol.FileInfo{existingFile})
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iterFn := func(folder, file string, index int32) bool {
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return true
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}
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// Verify that the blocks we say exist on file, really exist in the db.
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for _, idx := range []int{2, 3, 4, 7} {
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if m.finder.Iterate(blocks[idx].Hash, iterFn) == false {
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t.Error("Didn't find block")
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}
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}
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p := rwFolder{
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folder: "default",
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dir: "testdata",
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model: m,
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}
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copyChan := make(chan copyBlocksState)
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pullChan := make(chan pullBlockState, 4)
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finisherChan := make(chan *sharedPullerState, 1)
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// Run a single fetcher routine
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go p.copierRoutine(copyChan, pullChan, finisherChan)
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p.handleFile(requiredFile, copyChan, finisherChan)
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pulls := []pullBlockState{<-pullChan, <-pullChan, <-pullChan, <-pullChan}
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finish := <-finisherChan
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select {
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case <-pullChan:
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t.Fatal("Finisher channel has data to be read")
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case <-finisherChan:
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t.Fatal("Finisher channel has data to be read")
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default:
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}
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// Verify that the right blocks went into the pull list
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for i, eq := range []int{1, 5, 6, 8} {
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if string(pulls[i].block.Hash) != string(blocks[eq].Hash) {
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t.Errorf("Block %d mismatch: %s != %s", eq, pulls[i].block.String(), blocks[eq].String())
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}
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if string(finish.file.Blocks[eq-1].Hash) != string(blocks[eq].Hash) {
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t.Errorf("Block %d mismatch: %s != %s", eq, finish.file.Blocks[eq-1].String(), blocks[eq].String())
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}
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}
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// Verify that the fetched blocks have actually been written to the temp file
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blks, err := scanner.HashFile(tempFile, protocol.BlockSize)
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if err != nil {
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t.Log(err)
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}
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for _, eq := range []int{2, 3, 4, 7} {
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if string(blks[eq-1].Hash) != string(blocks[eq].Hash) {
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t.Errorf("Block %d mismatch: %s != %s", eq, blks[eq-1].String(), blocks[eq].String())
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}
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}
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finish.fd.Close()
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os.Remove(tempFile)
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}
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// Test that updating a file removes it's old blocks from the blockmap
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func TestCopierCleanup(t *testing.T) {
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iterFn := func(folder, file string, index int32) bool {
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return true
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}
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db, _ := leveldb.Open(storage.NewMemStorage(), nil)
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m := NewModel(defaultConfig, protocol.LocalDeviceID, "device", "syncthing", "dev", db)
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m.AddFolder(defaultFolderConfig)
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// Create a file
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file := protocol.FileInfo{
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Name: "test",
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Flags: 0,
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Modified: 0,
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Blocks: []protocol.BlockInfo{blocks[0]},
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}
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// Add file to index
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m.updateLocals("default", []protocol.FileInfo{file})
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if !m.finder.Iterate(blocks[0].Hash, iterFn) {
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t.Error("Expected block not found")
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}
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file.Blocks = []protocol.BlockInfo{blocks[1]}
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file.Version = file.Version.Update(protocol.LocalDeviceID.Short())
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// Update index (removing old blocks)
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m.updateLocals("default", []protocol.FileInfo{file})
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if m.finder.Iterate(blocks[0].Hash, iterFn) {
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t.Error("Unexpected block found")
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}
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if !m.finder.Iterate(blocks[1].Hash, iterFn) {
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t.Error("Expected block not found")
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}
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file.Blocks = []protocol.BlockInfo{blocks[0]}
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file.Version = file.Version.Update(protocol.LocalDeviceID.Short())
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// Update index (removing old blocks)
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m.updateLocals("default", []protocol.FileInfo{file})
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if !m.finder.Iterate(blocks[0].Hash, iterFn) {
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t.Error("Unexpected block found")
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}
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if m.finder.Iterate(blocks[1].Hash, iterFn) {
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t.Error("Expected block not found")
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}
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}
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// Make sure that the copier routine hashes the content when asked, and pulls
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// if it fails to find the block.
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func TestLastResortPulling(t *testing.T) {
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db, _ := leveldb.Open(storage.NewMemStorage(), nil)
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m := NewModel(defaultConfig, protocol.LocalDeviceID, "device", "syncthing", "dev", db)
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m.AddFolder(defaultFolderConfig)
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// Add a file to index (with the incorrect block representation, as content
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// doesn't actually match the block list)
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file := protocol.FileInfo{
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Name: "empty",
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Flags: 0,
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Modified: 0,
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Blocks: []protocol.BlockInfo{blocks[0]},
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}
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m.updateLocals("default", []protocol.FileInfo{file})
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// Pretend that we are handling a new file of the same content but
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// with a different name (causing to copy that particular block)
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file.Name = "newfile"
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iterFn := func(folder, file string, index int32) bool {
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return true
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}
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// Check that that particular block is there
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if !m.finder.Iterate(blocks[0].Hash, iterFn) {
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t.Error("Expected block not found")
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}
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p := rwFolder{
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folder: "default",
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dir: "testdata",
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model: m,
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}
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copyChan := make(chan copyBlocksState)
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pullChan := make(chan pullBlockState, 1)
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finisherChan := make(chan *sharedPullerState, 1)
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// Run a single copier routine
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go p.copierRoutine(copyChan, pullChan, finisherChan)
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p.handleFile(file, copyChan, finisherChan)
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// Copier should hash empty file, realise that the region it has read
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// doesn't match the hash which was advertised by the block map, fix it
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// and ask to pull the block.
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<-pullChan
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// Verify that it did fix the incorrect hash.
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if m.finder.Iterate(blocks[0].Hash, iterFn) {
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t.Error("Found unexpected block")
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}
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if !m.finder.Iterate(scanner.SHA256OfNothing, iterFn) {
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t.Error("Expected block not found")
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}
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(<-finisherChan).fd.Close()
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os.Remove(filepath.Join("testdata", defTempNamer.TempName("newfile")))
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}
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func TestDeregisterOnFailInCopy(t *testing.T) {
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file := protocol.FileInfo{
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Name: "filex",
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Flags: 0,
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Modified: 0,
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Blocks: []protocol.BlockInfo{
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blocks[0], blocks[2], blocks[0], blocks[0],
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blocks[5], blocks[0], blocks[0], blocks[8],
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},
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}
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defer os.Remove("testdata/" + defTempNamer.TempName("filex"))
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db, _ := leveldb.Open(storage.NewMemStorage(), nil)
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m := NewModel(defaultConfig, protocol.LocalDeviceID, "device", "syncthing", "dev", db)
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m.AddFolder(defaultFolderConfig)
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emitter := NewProgressEmitter(defaultConfig)
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go emitter.Serve()
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p := rwFolder{
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folder: "default",
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dir: "testdata",
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model: m,
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queue: newJobQueue(),
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progressEmitter: emitter,
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}
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// queue.Done should be called by the finisher routine
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p.queue.Push("filex", 0, 0)
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p.queue.Pop()
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if len(p.queue.progress) != 1 {
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t.Fatal("Expected file in progress")
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}
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copyChan := make(chan copyBlocksState)
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pullChan := make(chan pullBlockState)
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finisherBufferChan := make(chan *sharedPullerState)
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finisherChan := make(chan *sharedPullerState)
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go p.copierRoutine(copyChan, pullChan, finisherBufferChan)
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go p.finisherRoutine(finisherChan)
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p.handleFile(file, copyChan, finisherChan)
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// Receive a block at puller, to indicate that atleast a single copier
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// loop has been performed.
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toPull := <-pullChan
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// Wait until copier is trying to pass something down to the puller again
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time.Sleep(100 * time.Millisecond)
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// Close the file
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toPull.sharedPullerState.fail("test", os.ErrNotExist)
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// Unblock copier
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<-pullChan
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select {
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case state := <-finisherBufferChan:
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// At this point the file should still be registered with both the job
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// queue, and the progress emitter. Verify this.
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if len(p.progressEmitter.registry) != 1 || len(p.queue.progress) != 1 || len(p.queue.queued) != 0 {
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t.Fatal("Could not find file")
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}
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// Pass the file down the real finisher, and give it time to consume
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finisherChan <- state
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time.Sleep(100 * time.Millisecond)
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if state.fd != nil {
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t.Fatal("File not closed?")
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}
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if len(p.progressEmitter.registry) != 0 || len(p.queue.progress) != 0 || len(p.queue.queued) != 0 {
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t.Fatal("Still registered", len(p.progressEmitter.registry), len(p.queue.progress), len(p.queue.queued))
|
|
}
|
|
|
|
// Doing it again should have no effect
|
|
finisherChan <- state
|
|
time.Sleep(100 * time.Millisecond)
|
|
|
|
if len(p.progressEmitter.registry) != 0 || len(p.queue.progress) != 0 || len(p.queue.queued) != 0 {
|
|
t.Fatal("Still registered")
|
|
}
|
|
case <-time.After(time.Second):
|
|
t.Fatal("Didn't get anything to the finisher")
|
|
}
|
|
}
|
|
|
|
func TestDeregisterOnFailInPull(t *testing.T) {
|
|
file := protocol.FileInfo{
|
|
Name: "filex",
|
|
Flags: 0,
|
|
Modified: 0,
|
|
Blocks: []protocol.BlockInfo{
|
|
blocks[0], blocks[2], blocks[0], blocks[0],
|
|
blocks[5], blocks[0], blocks[0], blocks[8],
|
|
},
|
|
}
|
|
defer os.Remove("testdata/" + defTempNamer.TempName("filex"))
|
|
|
|
db, _ := leveldb.Open(storage.NewMemStorage(), nil)
|
|
m := NewModel(defaultConfig, protocol.LocalDeviceID, "device", "syncthing", "dev", db)
|
|
m.AddFolder(defaultFolderConfig)
|
|
|
|
emitter := NewProgressEmitter(defaultConfig)
|
|
go emitter.Serve()
|
|
|
|
p := rwFolder{
|
|
folder: "default",
|
|
dir: "testdata",
|
|
model: m,
|
|
queue: newJobQueue(),
|
|
progressEmitter: emitter,
|
|
}
|
|
|
|
// queue.Done should be called by the finisher routine
|
|
p.queue.Push("filex", 0, 0)
|
|
p.queue.Pop()
|
|
|
|
if len(p.queue.progress) != 1 {
|
|
t.Fatal("Expected file in progress")
|
|
}
|
|
|
|
copyChan := make(chan copyBlocksState)
|
|
pullChan := make(chan pullBlockState)
|
|
finisherBufferChan := make(chan *sharedPullerState)
|
|
finisherChan := make(chan *sharedPullerState)
|
|
|
|
go p.copierRoutine(copyChan, pullChan, finisherBufferChan)
|
|
go p.pullerRoutine(pullChan, finisherBufferChan)
|
|
go p.finisherRoutine(finisherChan)
|
|
|
|
p.handleFile(file, copyChan, finisherChan)
|
|
|
|
// Receove at finisher, we shoud error out as puller has nowhere to pull
|
|
// from.
|
|
select {
|
|
case state := <-finisherBufferChan:
|
|
// At this point the file should still be registered with both the job
|
|
// queue, and the progress emitter. Verify this.
|
|
if len(p.progressEmitter.registry) != 1 || len(p.queue.progress) != 1 || len(p.queue.queued) != 0 {
|
|
t.Fatal("Could not find file")
|
|
}
|
|
|
|
// Pass the file down the real finisher, and give it time to consume
|
|
finisherChan <- state
|
|
time.Sleep(100 * time.Millisecond)
|
|
|
|
if state.fd != nil {
|
|
t.Fatal("File not closed?")
|
|
}
|
|
|
|
if len(p.progressEmitter.registry) != 0 || len(p.queue.progress) != 0 || len(p.queue.queued) != 0 {
|
|
t.Fatal("Still registered", len(p.progressEmitter.registry), len(p.queue.progress), len(p.queue.queued))
|
|
}
|
|
|
|
// Doing it again should have no effect
|
|
finisherChan <- state
|
|
time.Sleep(100 * time.Millisecond)
|
|
|
|
if len(p.progressEmitter.registry) != 0 || len(p.queue.progress) != 0 || len(p.queue.queued) != 0 {
|
|
t.Fatal("Still registered")
|
|
}
|
|
case <-time.After(time.Second):
|
|
t.Fatal("Didn't get anything to the finisher")
|
|
}
|
|
}
|