01:
02:
03:
04:
05:
06:
07:
08:
09:
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:
/*
* This file is part of the Omni C++ framework
*
* Copyright 2015, Zeriph Enterprises, LLC
*
* PERMISSION TO USE, COPY, MODIFY, AND/OR DISTRIBUTE THIS SOFTWARE FOR ANY
* PURPOSE WITH OR WITHOUT FEE IS HEREBY GRANTED, PROVIDED THAT THE ABOVE
* COPYRIGHT NOTICE AND THIS PERMISSION NOTICE APPEAR IN ALL COPIES.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
* REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
* INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
* LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
* OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
* PERFORMANCE OF THIS SOFTWARE.
*
* ZERIPH DOES NOT MAKE ANY ASSURANCES WITH REGARD TO THE ACCURACY OF THE RESULTS
* OR OUTPUT THAT DERIVES FROM SUCH USE OF ANY SOFTWARE.
*/
#if !defined(OMNI_CONDITIONAL_HPP)
#define OMNI_CONDITIONAL_HPP 1
#include <omni/defs/class_macros.hpp>
#include <omni/types/tick_t.hpp>
#include <omni/types/thread_t.hpp>
#include <omni/sync/lock.hpp>
#include <omni/sync/scoped_lock.hpp>
#include <omni/chrono/tick.hpp>
#if !defined(OMNI_OS_WIN)
#include <errno.h> // errno
#endif
namespace omni {
namespace sync {
class conditional
{
public:
conditional();
explicit conditional(bool initialy_signaled);
~conditional();
void broadcast();
void reset();
inline bool signaled() const
{
omni::sync::scoped_lock<omni::sync::mutex_t> slock(&this->m_wait);
return this->m_signaled;
}
void signal();
bool wait();
bool wait(unsigned long timeout_ms);
bool operator==(const omni::sync::conditional& o);
bool operator!=(const omni::sync::conditional& o);
OMNI_MEMBERS_FW(omni::sync::conditional) // disposing,name,type(),hash()
private:
// defined but not implemented, doesn't make sense to copy
conditional(const omni::sync::conditional &cp);
omni::sync::conditional& operator=(const omni::sync::conditional& other);
void _init();
#if defined(OMNI_TYPE_INFO)
omni::type<omni::sync::conditional> m_type;
#endif
omni::sync::cond_t m_signal;
mutable omni::sync::mutex_t m_wait;
unsigned long m_waitreq;
volatile mutable bool m_signaled;
};
}
}
#endif // OMNI_CONDITIONAL_HPP