/usr/include/libixion-0.10/ixion/thread.hpp is in libixion-dev 0.9.1-3ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 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 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 | /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*/
#ifndef __IXION_THREAD_HPP__
#define __IXION_THREAD_HPP__
#include <mutex>
#include <type_traits>
#include <utility>
namespace ixion {
/**
* Original implementation from http://www.stdthread.co.uk/syncvalue .
* Altered naming conventions to match this code base. You can read more
* about this template here: http://www.drdobbs.com/cpp/225200269 .
*/
template<typename T>
class synchronized_value
{
T data;
::std::mutex m;
public:
struct updater
{
private:
friend class synchronized_value;
::std::unique_lock<std::mutex> lk;
T& data;
explicit updater(synchronized_value& outer) :
lk(outer.m),data(outer.data) {}
public:
updater(updater&& other):
lk(::std::move(other.lk)),data(other.data) {}
T* operator->()
{
return &data;
}
T& operator*()
{
return data;
}
};
updater operator->()
{
return updater(*this);
}
updater update()
{
return updater(*this);
}
private:
class deref_value
{
private:
friend class synchronized_value;
std::unique_lock<std::mutex> lk;
T& data;
explicit deref_value(synchronized_value& outer) :
lk(outer.m),data(outer.data)
{}
deref_value(deref_value&& other):
lk(std::move(other.lk)),data(other.data)
{}
public:
operator T()
{
return data;
}
deref_value& operator=(T const& new_val)
{
data=new_val;
return *this;
}
};
public:
deref_value operator*()
{
return deref_value(*this);
}
};
}
#endif
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|