/usr/include/boost/fiber/fiber.hpp is in libboost1.65-dev 1.65.1+dfsg-0ubuntu5.
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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 | // Copyright Oliver Kowalke 2013.
// Distributed under the Boost Software License, Version 1.0.
// (See accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)
#ifndef BOOST_FIBERS_FIBER_H
#define BOOST_FIBERS_FIBER_H
#include <algorithm>
#include <exception>
#include <memory>
#include <utility>
#include <boost/assert.hpp>
#include <boost/config.hpp>
#include <boost/intrusive_ptr.hpp>
#include <boost/predef.h>
#include <boost/fiber/detail/config.hpp>
#include <boost/fiber/detail/disable_overload.hpp>
#include <boost/fiber/context.hpp>
#include <boost/fiber/fixedsize_stack.hpp>
#include <boost/fiber/policy.hpp>
#include <boost/fiber/properties.hpp>
#include <boost/fiber/segmented_stack.hpp>
#ifdef BOOST_HAS_ABI_HEADERS
# include BOOST_ABI_PREFIX
#endif
#ifdef _MSC_VER
# pragma warning(push)
# pragma warning(disable:4251)
#endif
namespace boost {
namespace fibers {
class BOOST_FIBERS_DECL fiber {
private:
friend class context;
typedef intrusive_ptr< context > ptr_t;
ptr_t impl_{};
void start_() noexcept;
public:
typedef context::id id;
fiber() = default;
template< typename Fn,
typename ... Arg,
typename = detail::disable_overload< fiber, Fn >,
typename = detail::disable_overload< launch, Fn >,
typename = detail::disable_overload< std::allocator_arg_t, Fn >
>
#if BOOST_COMP_GNUC < 50000000
fiber( Fn && fn, Arg && ... arg) :
#else
fiber( Fn && fn, Arg ... arg) :
#endif
fiber{ launch::post,
std::allocator_arg, default_stack(),
std::forward< Fn >( fn), std::forward< Arg >( arg) ... } {
}
template< typename Fn,
typename ... Arg,
typename = detail::disable_overload< fiber, Fn >
>
#if BOOST_COMP_GNUC < 50000000
fiber( launch policy, Fn && fn, Arg && ... arg) :
#else
fiber( launch policy, Fn && fn, Arg ... arg) :
#endif
fiber{ policy,
std::allocator_arg, default_stack(),
std::forward< Fn >( fn), std::forward< Arg >( arg) ... } {
}
template< typename StackAllocator,
typename Fn,
typename ... Arg
>
#if BOOST_COMP_GNUC < 50000000
fiber( std::allocator_arg_t, StackAllocator salloc, Fn && fn, Arg && ... arg) :
#else
fiber( std::allocator_arg_t, StackAllocator salloc, Fn && fn, Arg ... arg) :
#endif
fiber{ launch::post,
std::allocator_arg, salloc,
std::forward< Fn >( fn), std::forward< Arg >( arg) ... } {
}
template< typename StackAllocator,
typename Fn,
typename ... Arg
>
#if BOOST_COMP_GNUC < 50000000
fiber( launch policy, std::allocator_arg_t, StackAllocator salloc, Fn && fn, Arg && ... arg) :
#else
fiber( launch policy, std::allocator_arg_t, StackAllocator salloc, Fn && fn, Arg ... arg) :
#endif
impl_{ make_worker_context( policy, salloc, std::forward< Fn >( fn), std::forward< Arg >( arg) ... ) } {
start_();
}
~fiber() {
if ( joinable() ) {
std::terminate();
}
}
fiber( fiber const&) = delete;
fiber & operator=( fiber const&) = delete;
fiber( fiber && other) noexcept :
impl_{} {
impl_.swap( other.impl_);
}
fiber & operator=( fiber && other) noexcept {
if ( joinable() ) {
std::terminate();
}
if ( BOOST_UNLIKELY( this == & other) ) {
return * this;
}
impl_.swap( other.impl_);
return * this;
}
void swap( fiber & other) noexcept {
impl_.swap( other.impl_);
}
id get_id() const noexcept {
return impl_ ? impl_->get_id() : id();
}
bool joinable() const noexcept {
return nullptr != impl_;
}
void join();
void detach();
template< typename PROPS >
PROPS & properties() {
auto props = impl_->get_properties();
BOOST_ASSERT_MSG( props, "fiber::properties not set");
return dynamic_cast< PROPS & >( * props );
}
};
inline
bool operator<( fiber const& l, fiber const& r) noexcept {
return l.get_id() < r.get_id();
}
inline
void swap( fiber & l, fiber & r) noexcept {
return l.swap( r);
}
}}
#ifdef _MSC_VER
# pragma warning(pop)
#endif
#ifdef BOOST_HAS_ABI_HEADERS
# include BOOST_ABI_SUFFIX
#endif
#endif // BOOST_FIBERS_FIBER_H
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