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
|
// Copyright 2014 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/sync_file_system/drive_backend/sync_task_token.h"
#include "base/bind.h"
#include "base/debug/trace_event.h"
#include "base/thread_task_runner_handle.h"
#include "chrome/browser/sync_file_system/drive_backend/sync_task_manager.h"
#include "chrome/browser/sync_file_system/drive_backend/task_dependency_manager.h"
namespace sync_file_system {
namespace drive_backend {
const int64 SyncTaskToken::kTestingTaskTokenID = -1;
const int64 SyncTaskToken::kForegroundTaskTokenID = 0;
const int64 SyncTaskToken::kMinimumBackgroundTaskTokenID = 1;
// static
scoped_ptr<SyncTaskToken> SyncTaskToken::CreateForTesting(
const SyncStatusCallback& callback) {
return make_scoped_ptr(new SyncTaskToken(
base::WeakPtr<SyncTaskManager>(),
base::ThreadTaskRunnerHandle::Get(),
kTestingTaskTokenID,
nullptr, // task_blocker
callback));
}
// static
scoped_ptr<SyncTaskToken> SyncTaskToken::CreateForForegroundTask(
const base::WeakPtr<SyncTaskManager>& manager,
base::SequencedTaskRunner* task_runner) {
return make_scoped_ptr(new SyncTaskToken(
manager,
task_runner,
kForegroundTaskTokenID,
nullptr, // task_blocker
SyncStatusCallback()));
}
// static
scoped_ptr<SyncTaskToken> SyncTaskToken::CreateForBackgroundTask(
const base::WeakPtr<SyncTaskManager>& manager,
base::SequencedTaskRunner* task_runner,
int64 token_id,
scoped_ptr<TaskBlocker> task_blocker) {
return make_scoped_ptr(new SyncTaskToken(
manager,
task_runner,
token_id,
task_blocker.Pass(),
SyncStatusCallback()));
}
void SyncTaskToken::UpdateTask(const tracked_objects::Location& location,
const SyncStatusCallback& callback) {
DCHECK(callback_.is_null());
location_ = location;
callback_ = callback;
DVLOG(2) << "Token updated: " << location_.ToString();
}
SyncTaskToken::~SyncTaskToken() {
// All task on Client must hold TaskToken instance to ensure
// no other tasks are running. Also, as soon as a task finishes to work,
// it must return the token to TaskManager.
// Destroying a token with valid |client| indicates the token was
// dropped by a task without returning.
if (task_runner_.get() && task_runner_->RunsTasksOnCurrentThread() &&
manager_ && manager_->IsRunningTask(token_id_)) {
NOTREACHED()
<< "Unexpected TaskToken deletion from: " << location_.ToString();
// Reinitializes the token.
SyncTaskManager::NotifyTaskDone(
make_scoped_ptr(new SyncTaskToken(manager_,
task_runner_.get(),
token_id_,
task_blocker_.Pass(),
SyncStatusCallback())),
SYNC_STATUS_OK);
}
}
// static
SyncStatusCallback SyncTaskToken::WrapToCallback(
scoped_ptr<SyncTaskToken> token) {
return base::Bind(&SyncTaskManager::NotifyTaskDone, base::Passed(&token));
}
void SyncTaskToken::set_task_blocker(
scoped_ptr<TaskBlocker> task_blocker) {
task_blocker_ = task_blocker.Pass();
}
const TaskBlocker* SyncTaskToken::task_blocker() const {
return task_blocker_.get();
}
void SyncTaskToken::clear_task_blocker() {
task_blocker_.reset();
}
void SyncTaskToken::InitializeTaskLog(const std::string& task_description) {
task_log_.reset(new TaskLogger::TaskLog);
task_log_->start_time = base::TimeTicks::Now();
task_log_->task_description = task_description;
TRACE_EVENT_ASYNC_BEGIN1(
TRACE_DISABLED_BY_DEFAULT("SyncFileSystem"),
"SyncTask", task_log_->log_id,
"task_description", task_description);
}
void SyncTaskToken::FinalizeTaskLog(const std::string& result_description) {
TRACE_EVENT_ASYNC_END1(
TRACE_DISABLED_BY_DEFAULT("SyncFileSystem"),
"SyncTask", task_log_->log_id,
"result_description", result_description);
DCHECK(task_log_);
task_log_->result_description = result_description;
task_log_->end_time = base::TimeTicks::Now();
}
void SyncTaskToken::RecordLog(const std::string& message) {
DCHECK(task_log_);
task_log_->details.push_back(message);
}
void SyncTaskToken::SetTaskLog(scoped_ptr<TaskLogger::TaskLog> task_log) {
task_log_ = task_log.Pass();
}
scoped_ptr<TaskLogger::TaskLog> SyncTaskToken::PassTaskLog() {
return task_log_.Pass();
}
SyncTaskToken::SyncTaskToken(
const base::WeakPtr<SyncTaskManager>& manager,
const scoped_refptr<base::SequencedTaskRunner>& task_runner,
int64 token_id,
scoped_ptr<TaskBlocker> task_blocker,
const SyncStatusCallback& callback)
: manager_(manager),
task_runner_(task_runner),
token_id_(token_id),
callback_(callback),
task_blocker_(task_blocker.Pass()) {
}
} // namespace drive_backend
} // namespace sync_file_system
|
