Roc Toolkit internal modules
Roc Toolkit: real-time audio streaming
mutex.h
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1 /*
2  * Copyright (c) 2015 Roc authors
3  *
4  * This Source Code Form is subject to the terms of the Mozilla Public
5  * License, v. 2.0. If a copy of the MPL was not distributed with this
6  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
7  */
8 
9 //! @file roc_core/target_libuv/roc_core/mutex.h
10 //! @brief Mutex.
11 
12 #ifndef ROC_CORE_MUTEX_H_
13 #define ROC_CORE_MUTEX_H_
14 
15 #include <uv.h>
16 
17 #include "roc_core/noncopyable.h"
18 #include "roc_core/panic.h"
19 #include "roc_core/scoped_lock.h"
20 
21 namespace roc {
22 namespace core {
23 
24 class Cond;
25 
26 //! Mutex.
27 class Mutex : public NonCopyable<> {
28 public:
29  //! RAII lock.
31 
32  Mutex() {
33  if (int err = uv_mutex_init(&mutex_)) {
34  roc_panic("mutex: uv_mutex_init(): [%s] %s", uv_err_name(err),
35  uv_strerror(err));
36  }
37  }
38 
39  ~Mutex() {
40  uv_mutex_destroy(&mutex_);
41  }
42 
43  //! Lock mutex.
44  void lock() const {
45  uv_mutex_lock(&mutex_);
46  }
47 
48  //! Unlock mutex.
49  void unlock() const {
50  uv_mutex_unlock(&mutex_);
51  }
52 
53 private:
54  friend class Cond;
55 
56  mutable uv_mutex_t mutex_;
57 };
58 
59 } // namespace core
60 } // namespace roc
61 
62 #endif // ROC_CORE_MUTEX_H_
void lock() const
Lock mutex.
Definition: mutex.h:44
void unlock() const
Unlock mutex.
Definition: mutex.h:49
Condition variable.
Definition: cond.h:25
Root namespace.
Mutex.
Definition: mutex.h:27
ScopedLock< Mutex > Lock
RAII lock.
Definition: mutex.h:30
#define roc_panic(...)
Print error message and terminate program gracefully.
Definition: panic.h:42
Base class for non-copyable objects.
Definition: noncopyable.h:23
RAII mutex lock.
Definition: scoped_lock.h:21
Panic function.
RAII mutex lock.
Non-copyable object.