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1 // Copyright 2014 The Chromium Authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 #include "mojo/public/utility/thread.h" | |
6 | |
7 #include <assert.h> | |
8 | |
9 namespace mojo { | |
10 | |
11 Thread::Thread() | |
12 : options_(), | |
13 thread_(), | |
14 started_(false), | |
15 joined_(false) { | |
16 } | |
17 | |
18 Thread::Thread(const Options& options) | |
19 : options_(options), | |
20 thread_(), | |
21 started_(false), | |
22 joined_(false) { | |
23 } | |
24 | |
25 Thread::~Thread() { | |
26 // If it was started, it must have been joined. | |
27 assert(!started_ || joined_); | |
28 } | |
29 | |
30 void Thread::Start() { | |
31 assert(!started_); | |
32 assert(!joined_); | |
33 | |
34 pthread_attr_t attr; | |
35 int rv MOJO_ALLOW_UNUSED = pthread_attr_init(&attr); | |
36 assert(rv == 0); | |
37 | |
38 // Non-default stack size? | |
39 if (options_.stack_size() != 0) { | |
40 rv = pthread_attr_setstacksize(&attr, options_.stack_size()); | |
41 assert(rv == 0); | |
42 } | |
43 | |
44 started_ = true; | |
45 rv = pthread_create(&thread_, &attr, &ThreadRunTrampoline, this); | |
46 assert(rv == 0); | |
47 | |
48 rv = pthread_attr_destroy(&attr); | |
49 assert(rv == 0); | |
50 } | |
51 | |
52 void Thread::Join() { | |
53 // Must have been started but not yet joined. | |
54 assert(started_); | |
55 assert(!joined_); | |
56 | |
57 joined_ = true; | |
58 int rv MOJO_ALLOW_UNUSED = pthread_join(thread_, NULL); | |
59 assert(rv == 0); | |
60 } | |
61 | |
62 // static | |
63 void* Thread::ThreadRunTrampoline(void* arg) { | |
64 Thread* self = static_cast<Thread*>(arg); | |
65 self->Run(); | |
66 return NULL; | |
67 } | |
68 | |
69 } // namespace mojo | |
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