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// Copyright (C) 2003 Davis E. King (davis@dlib.net)
// License: Boost Software License See LICENSE.txt for the full license.
#ifndef DLIB_THREADS_KERNEl_1_
#define DLIB_THREADS_KERNEl_1_
#ifdef DLIB_ISO_CPP_ONLY
#error "DLIB_ISO_CPP_ONLY is defined so you can't use this OS dependent code. Turn DLIB_ISO_CPP_ONLY off if you want to use it."
#endif
#include "threads_kernel_abstract.h"
#include "../windows_magic.h"
#include <windows.h>
#include "../algs.h"
#include <condition_variable>
#include <mutex>
#include <chrono>
namespace dlib
{
// ----------------------------------------------------------------------------------------
typedef DWORD thread_id_type;
inline thread_id_type get_thread_id (
)
{
return GetCurrentThreadId();
}
// ----------------------------------------------------------------------------------------
// ----------------------------------------------------------------------------------------
// mutex object
// ----------------------------------------------------------------------------------------
// ----------------------------------------------------------------------------------------
// forward declaration of signaler
class signaler;
class mutex
{
public:
mutex (
)
{
}
~mutex (
) { }
void lock (
) const { cs.lock(); }
void unlock (
) const { cs.unlock(); }
private:
friend class signaler;
mutable std::mutex cs;
// restricted functions
mutex(mutex&); // copy constructor
mutex& operator=(mutex&); // assignment operator
};
// ----------------------------------------------------------------------------------------
// ----------------------------------------------------------------------------------------
// signaler object
// ----------------------------------------------------------------------------------------
// ----------------------------------------------------------------------------------------
class signaler
{
public:
signaler (
const mutex& associated_mutex
) :
m(associated_mutex)
{
}
~signaler (
) { }
void wait (
) const
{
std::unique_lock<std::mutex> cs(m.cs, std::defer_lock);
cv.wait(cs);
}
bool wait_or_timeout (
unsigned long milliseconds
) const
{
std::unique_lock<std::mutex> cs(m.cs, std::defer_lock);
auto status = cv.wait_until(cs, std::chrono::system_clock::now() + std::chrono::milliseconds(milliseconds));
return status == std::cv_status::no_timeout;
}
void signal (
) const
{
cv.notify_one();
}
void broadcast (
) const
{
cv.notify_all();
}
const mutex& get_mutex (
) const { return m; }
private:
mutable std::condition_variable cv;
const mutex& m;
// restricted functions
signaler(signaler&); // copy constructor
signaler& operator=(signaler&); // assignment operator
};
// ----------------------------------------------------------------------------------------
namespace threads_kernel_shared_helpers
{
bool spawn_thread (
void (*funct)(void*),
void* param
);
/*!
is identical to create_new_thread() but just doesn't use any thread pooling.
!*/
}
// ----------------------------------------------------------------------------------------
}
#include "threads_kernel_shared.h"
#ifdef NO_MAKEFILE
#include "threads_kernel_1.cpp"
#endif
#endif // DLIB_THREADS_KERNEl_1_
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