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Issue 9196002: Move Mutex and Monitor from vm/ to platform/ (Closed) Base URL: https://dart.googlecode.com/svn/branches/bleeding_edge/dart
Patch Set: Created 8 years, 11 months ago
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1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file 1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file
2 // for details. All rights reserved. Use of this source code is governed by a 2 // for details. All rights reserved. Use of this source code is governed by a
3 // BSD-style license that can be found in the LICENSE file. 3 // BSD-style license that can be found in the LICENSE file.
4 4
5 #include <sys/errno.h> 5 #include <sys/errno.h>
6 6
7 #include "platform/assert.h" 7 #include "platform/assert.h"
8 #include "vm/thread.h" 8 #include "platform/thread.h"
9 9
10 namespace dart { 10 namespace dart {
11 11
12 #define VALIDATE_PTHREAD_RESULT(result) \ 12 #define VALIDATE_PTHREAD_RESULT(result) \
13 if (result != 0) { \ 13 if (result != 0) { \
14 FATAL2("pthread error: %d (%s)", result, strerror(result)); \ 14 FATAL2("pthread error: %d (%s)", result, strerror(result)); \
15 } 15 }
16 16
17 17
18 class ThreadStartData {
19 public:
20 ThreadStartData(Thread::ThreadStartFunction function,
21 uword parameter,
22 Thread* thread)
23 : function_(function), parameter_(parameter), thread_(thread) {}
24
25 Thread::ThreadStartFunction function() const { return function_; }
26 uword parameter() const { return parameter_; }
27 Thread* thread() const { return thread_; }
28
29 private:
30 Thread::ThreadStartFunction function_;
31 uword parameter_;
32 Thread* thread_;
33
34 DISALLOW_COPY_AND_ASSIGN(ThreadStartData);
35 };
36
37
38 // Dispatch to the thread start function provided by the caller. This trampoline
39 // is used to ensure that the thread is properly destroyed if the thread just
40 // exits.
41 static void* ThreadStart(void* data_ptr) {
42 ThreadStartData* data = reinterpret_cast<ThreadStartData*>(data_ptr);
43
44 Thread::ThreadStartFunction function = data->function();
45 uword parameter = data->parameter();
46 Thread* thread = data->thread();
47 delete data;
48
49 // Call the supplied thread start function handing it its parameters.
50 function(parameter);
51
52 // When the function returns here, make sure that the thread is deleted.
53 delete thread;
54
55 return NULL;
56 }
57
58
59 Thread::Thread(ThreadStartFunction function, uword parameter) {
60 pthread_attr_t attr;
61 int result = pthread_attr_init(&attr);
62 VALIDATE_PTHREAD_RESULT(result);
63
64 result = pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
65 VALIDATE_PTHREAD_RESULT(result);
66
67 result = pthread_attr_setstacksize(&attr, 64 * KB);
68 VALIDATE_PTHREAD_RESULT(result);
69
70 ThreadStartData* data = new ThreadStartData(function, parameter, this);
71
72 pthread_t tid;
73 result = pthread_create(&tid,
74 &attr,
75 ThreadStart,
76 data);
77 VALIDATE_PTHREAD_RESULT(result);
78
79 data_.tid_ = tid;
80
81 result = pthread_attr_destroy(&attr);
82 VALIDATE_PTHREAD_RESULT(result);
83 }
84
85
86 Thread::~Thread() {
87 }
88
89
90 Mutex::Mutex() { 18 Mutex::Mutex() {
91 pthread_mutexattr_t attr; 19 pthread_mutexattr_t attr;
92 int result = pthread_mutexattr_init(&attr); 20 int result = pthread_mutexattr_init(&attr);
93 VALIDATE_PTHREAD_RESULT(result); 21 VALIDATE_PTHREAD_RESULT(result);
94 22
95 #if defined(DEBUG) 23 #if defined(DEBUG)
96 result = pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_ERRORCHECK); 24 result = pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_ERRORCHECK);
97 VALIDATE_PTHREAD_RESULT(result); 25 VALIDATE_PTHREAD_RESULT(result);
98 #endif // defined(DEBUG) 26 #endif // defined(DEBUG)
99 27
(...skipping 119 matching lines...) Expand 10 before | Expand all | Expand 10 after
219 } 147 }
220 148
221 149
222 void Monitor::NotifyAll() { 150 void Monitor::NotifyAll() {
223 // TODO(iposva): Do we need to track lock owners? 151 // TODO(iposva): Do we need to track lock owners?
224 int result = pthread_cond_broadcast(data_.cond()); 152 int result = pthread_cond_broadcast(data_.cond());
225 VALIDATE_PTHREAD_RESULT(result); 153 VALIDATE_PTHREAD_RESULT(result);
226 } 154 }
227 155
228 } // namespace dart 156 } // namespace dart
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