66 lines
1.9 KiB
C++
66 lines
1.9 KiB
C++
/******************************************************************************
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_ _
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| | ___ | |__ ___
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| |/ _ \| '_ \ / _ \
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| | (_) | |_) | (_) |
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|_|\___/|_.__/ \___/
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Copyright:
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Danny Robson, 2020
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*****************************************************************************/
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#include "init.hpp"
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#include "log.hpp"
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#include <atomic>
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#include <memory>
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using cruft::init::cookie;
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///////////////////////////////////////////////////////////////////////////////
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namespace {
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// Stores the various RAII handlers for any registered functionality that
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// requires it.
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struct state {
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state ()
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: log (cruft::log::setup_level_reflection ())
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{ ; }
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cruft::parse::enumeration::cookie log;
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};
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std::unique_ptr<state> s_state;
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std::atomic<int> s_count;
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}
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//-----------------------------------------------------------------------------
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// Increase the reference count and initialising the requisite functionality if
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// this is the first instance of the class.
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static void up (void)
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{
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if (int old = s_count++; !old)
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s_state = std::make_unique<state> ();
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}
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//-----------------------------------------------------------------------------
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// Decrease the reference count and release any resources if this was the last
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// instance of the class.
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static void down (void)
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{
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if (int old = --s_count; !old)
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s_state.reset ();
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}
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///////////////////////////////////////////////////////////////////////////////
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cookie::cookie () { up (); }
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cookie::cookie (cookie &&) noexcept { up (); }
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cookie::cookie (cookie const&) { up (); }
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cookie& cookie::operator= (cookie &&) noexcept { up (); return *this; }
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cookie& cookie::operator= (cookie const&) { up (); return *this; }
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cookie::~cookie () { down (); }
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