/usr/include/boost/fiber/mutex.hpp is in libboost1.62-dev 1.62.0+dfsg-4.
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 | // 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_MUTEX_H
#define BOOST_FIBERS_MUTEX_H
#include <boost/config.hpp>
#include <boost/assert.hpp>
#include <boost/fiber/context.hpp>
#include <boost/fiber/detail/config.hpp>
#include <boost/fiber/detail/spinlock.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 condition_variable;
class BOOST_FIBERS_DECL mutex {
private:
friend class condition_variable;
typedef context::wait_queue_t wait_queue_t;
context * owner_{ nullptr };
wait_queue_t wait_queue_{};
detail::spinlock wait_queue_splk_{};
public:
mutex() = default;
~mutex() {
BOOST_ASSERT( nullptr == owner_);
BOOST_ASSERT( wait_queue_.empty() );
}
mutex( mutex const&) = delete;
mutex & operator=( mutex const&) = delete;
void lock();
bool try_lock();
void unlock();
};
}}
#ifdef _MSC_VER
# pragma warning(pop)
#endif
#ifdef BOOST_HAS_ABI_HEADERS
# include BOOST_ABI_SUFFIX
#endif
#endif // BOOST_FIBERS_MUTEX_H
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