You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
91 lines
2.0 KiB
C++
91 lines
2.0 KiB
C++
// Copyright (C) 2006 Davis E. King (davis@dlib.net)
|
|
// License: Boost Software License See LICENSE.txt for the full license.
|
|
#ifndef DLIB_RSIGNALER_EXTENSIOn_
|
|
#define DLIB_RSIGNALER_EXTENSIOn_
|
|
|
|
#include "rsignaler_extension_abstract.h"
|
|
#include "rmutex_extension.h"
|
|
|
|
namespace dlib
|
|
{
|
|
|
|
// ----------------------------------------------------------------------------------------
|
|
|
|
class rsignaler
|
|
{
|
|
public:
|
|
rsignaler (
|
|
const rmutex& associated_mutex
|
|
) :
|
|
assoc_mutex(associated_mutex),
|
|
s(m)
|
|
{}
|
|
|
|
~rsignaler (
|
|
)
|
|
{}
|
|
|
|
void wait (
|
|
) const
|
|
{
|
|
m.lock();
|
|
const unsigned long lock_count = assoc_mutex.lock_count();
|
|
assoc_mutex.unlock(lock_count);
|
|
s.wait();
|
|
m.unlock();
|
|
assoc_mutex.lock(lock_count);
|
|
}
|
|
|
|
bool wait_or_timeout (
|
|
unsigned long milliseconds
|
|
) const
|
|
{
|
|
m.lock();
|
|
const unsigned long lock_count = assoc_mutex.lock_count();
|
|
assoc_mutex.unlock(lock_count);
|
|
bool res = s.wait_or_timeout(milliseconds);
|
|
m.unlock();
|
|
assoc_mutex.lock(lock_count);
|
|
return res;
|
|
}
|
|
|
|
void signal (
|
|
) const
|
|
{
|
|
m.lock();
|
|
s.signal();
|
|
m.unlock();
|
|
}
|
|
|
|
void broadcast (
|
|
) const
|
|
{
|
|
m.lock();
|
|
s.broadcast();
|
|
m.unlock();
|
|
}
|
|
|
|
const rmutex& get_mutex (
|
|
) const { return assoc_mutex; }
|
|
|
|
private:
|
|
|
|
const rmutex& assoc_mutex;
|
|
mutex m;
|
|
signaler s;
|
|
|
|
|
|
// restricted functions
|
|
rsignaler(rsignaler&); // copy constructor
|
|
rsignaler& operator=(rsignaler&); // assignment operator
|
|
};
|
|
|
|
// ----------------------------------------------------------------------------------------
|
|
|
|
}
|
|
|
|
#endif // DLIB_RSIGNALER_EXTENSIOn_
|
|
|
|
|
|
|