1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
|
// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/bookmarks/bookmark_storage.h"
#include "base/bind.h"
#include "base/compiler_specific.h"
#include "base/file_util.h"
#include "base/files/file_path.h"
#include "base/json/json_file_value_serializer.h"
#include "base/json/json_string_value_serializer.h"
#include "base/metrics/histogram.h"
#include "base/time/time.h"
#include "chrome/browser/bookmarks/bookmark_codec.h"
#include "chrome/browser/bookmarks/bookmark_index.h"
#include "chrome/browser/bookmarks/bookmark_model.h"
#include "chrome/common/chrome_constants.h"
#include "chrome/common/startup_metric_utils.h"
#include "content/public/browser/browser_context.h"
#include "content/public/browser/browser_thread.h"
using base::TimeTicks;
using content::BrowserThread;
namespace {
// Extension used for backup files (copy of main file created during startup).
const base::FilePath::CharType kBackupExtension[] = FILE_PATH_LITERAL("bak");
// How often we save.
const int kSaveDelayMS = 2500;
void BackupCallback(const base::FilePath& path) {
base::FilePath backup_path = path.ReplaceExtension(kBackupExtension);
base::CopyFile(path, backup_path);
}
// Adds node to the model's index, recursing through all children as well.
void AddBookmarksToIndex(BookmarkLoadDetails* details,
BookmarkNode* node) {
if (node->is_url()) {
if (node->url().is_valid())
details->index()->Add(node);
} else {
for (int i = 0; i < node->child_count(); ++i)
AddBookmarksToIndex(details, node->GetChild(i));
}
}
void LoadCallback(const base::FilePath& path,
BookmarkStorage* storage,
BookmarkLoadDetails* details) {
startup_metric_utils::ScopedSlowStartupUMA
scoped_timer("Startup.SlowStartupBookmarksLoad");
bool bookmark_file_exists = file_util::PathExists(path);
if (bookmark_file_exists) {
JSONFileValueSerializer serializer(path);
scoped_ptr<Value> root(serializer.Deserialize(NULL, NULL));
if (root.get()) {
// Building the index can take a while, so we do it on the background
// thread.
int64 max_node_id = 0;
BookmarkCodec codec;
TimeTicks start_time = TimeTicks::Now();
codec.Decode(details->bb_node(), details->other_folder_node(),
details->mobile_folder_node(), &max_node_id, *root.get());
details->set_max_id(std::max(max_node_id, details->max_id()));
details->set_computed_checksum(codec.computed_checksum());
details->set_stored_checksum(codec.stored_checksum());
details->set_ids_reassigned(codec.ids_reassigned());
details->set_model_meta_info(codec.model_meta_info());
UMA_HISTOGRAM_TIMES("Bookmarks.DecodeTime",
TimeTicks::Now() - start_time);
start_time = TimeTicks::Now();
AddBookmarksToIndex(details, details->bb_node());
AddBookmarksToIndex(details, details->other_folder_node());
AddBookmarksToIndex(details, details->mobile_folder_node());
UMA_HISTOGRAM_TIMES("Bookmarks.CreateBookmarkIndexTime",
TimeTicks::Now() - start_time);
}
}
BrowserThread::PostTask(
BrowserThread::UI, FROM_HERE,
base::Bind(&BookmarkStorage::OnLoadFinished, storage));
}
} // namespace
// BookmarkLoadDetails ---------------------------------------------------------
BookmarkLoadDetails::BookmarkLoadDetails(
BookmarkPermanentNode* bb_node,
BookmarkPermanentNode* other_folder_node,
BookmarkPermanentNode* mobile_folder_node,
BookmarkIndex* index,
int64 max_id)
: bb_node_(bb_node),
other_folder_node_(other_folder_node),
mobile_folder_node_(mobile_folder_node),
index_(index),
max_id_(max_id),
ids_reassigned_(false) {
}
BookmarkLoadDetails::~BookmarkLoadDetails() {
}
// BookmarkStorage -------------------------------------------------------------
BookmarkStorage::BookmarkStorage(
content::BrowserContext* context,
BookmarkModel* model,
base::SequencedTaskRunner* sequenced_task_runner)
: model_(model),
writer_(context->GetPath().Append(chrome::kBookmarksFileName),
sequenced_task_runner) {
sequenced_task_runner_ = sequenced_task_runner;
writer_.set_commit_interval(base::TimeDelta::FromMilliseconds(kSaveDelayMS));
sequenced_task_runner_->PostTask(FROM_HERE,
base::Bind(&BackupCallback, writer_.path()));
}
BookmarkStorage::~BookmarkStorage() {
if (writer_.HasPendingWrite())
writer_.DoScheduledWrite();
}
void BookmarkStorage::LoadBookmarks(BookmarkLoadDetails* details) {
DCHECK(!details_.get());
DCHECK(details);
details_.reset(details);
sequenced_task_runner_->PostTask(
FROM_HERE,
base::Bind(&LoadCallback, writer_.path(), make_scoped_refptr(this),
details_.get()));
}
void BookmarkStorage::ScheduleSave() {
writer_.ScheduleWrite(this);
}
void BookmarkStorage::BookmarkModelDeleted() {
// We need to save now as otherwise by the time SaveNow is invoked
// the model is gone.
if (writer_.HasPendingWrite())
SaveNow();
model_ = NULL;
}
bool BookmarkStorage::SerializeData(std::string* output) {
BookmarkCodec codec;
scoped_ptr<Value> value(codec.Encode(model_));
JSONStringValueSerializer serializer(output);
serializer.set_pretty_print(true);
return serializer.Serialize(*(value.get()));
}
void BookmarkStorage::OnLoadFinished() {
if (!model_)
return;
model_->DoneLoading(details_.release());
}
bool BookmarkStorage::SaveNow() {
if (!model_ || !model_->loaded()) {
// We should only get here if we have a valid model and it's finished
// loading.
NOTREACHED();
return false;
}
std::string data;
if (!SerializeData(&data))
return false;
writer_.WriteNow(data);
return true;
}
|
