cleanup

src/recursive_mutex.cpp

@@ -1,125 +0,0 @@
-
-//          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)
-
-#include "boost/fiber/recursive_mutex.hpp"
-
-#include <algorithm>
-
-#include <boost/assert.hpp>
-
-#include "boost/fiber/scheduler.hpp"
-#include "boost/fiber/interruption.hpp"
-
-#ifdef BOOST_HAS_ABI_HEADERS
-#  include BOOST_ABI_PREFIX
-#endif
-
-namespace boost {
-namespace fibers {
-
-bool
-recursive_mutex::lock_if_unlocked_() {
-    if ( mutex_status::unlocked == state_) {
-        state_ = mutex_status::locked;
-        BOOST_ASSERT( ! owner_);
-        owner_ = context::active()->get_id();
-        ++count_;
-        return true;
-    } else if ( context::active()->get_id() == owner_) {
-        ++count_;
-        return true;
-    }
-
-    return false;
-}
-
-recursive_mutex::recursive_mutex() :
-    splk_(),
-	state_( mutex_status::unlocked),
-    owner_(),
-    count_( 0),
-    wait_queue_() {
-}
-
-recursive_mutex::~recursive_mutex() {
-    BOOST_ASSERT( ! owner_);
-    BOOST_ASSERT( 0 == count_);
-    BOOST_ASSERT( wait_queue_.empty() );
-}
-
-void
-recursive_mutex::lock() {
-    context * f( context::active() );
-    BOOST_ASSERT( nullptr != f);
-    for (;;) {
-        detail::spinlock_lock lk( splk_);
-
-        if ( lock_if_unlocked_() ) {
-            return;
-        }
-
-        try {
-            // store this fiber in order to be notified later
-            BOOST_ASSERT( ! f->wait_is_linked() );
-            f->set_waiting();
-            wait_queue_.push_back( * f);
-            lk.unlock();
-
-            // check if fiber was interrupted
-            this_fiber::interruption_point();
-            // suspend this fiber
-            f->do_schedule();
-        } catch (...) {
-            detail::spinlock_lock lk( splk_);
-            f->wait_unlink();
-            throw;
-        }
-    }
-}
-
-bool
-recursive_mutex::try_lock() {
-    detail::spinlock_lock lk( splk_);
-
-    if ( lock_if_unlocked_() ) {
-        return true;
-    }
-
-    lk.unlock();
-
-    // let other fiber release the lock
-    context::active()->do_yield();
-    return false;
-}
-
-void
-recursive_mutex::unlock() {
-    BOOST_ASSERT( mutex_status::locked == state_);
-    BOOST_ASSERT( context::active()->get_id() == owner_);
-
-    detail::spinlock_lock lk( splk_);
-    context * f( nullptr);
-    if ( 0 == --count_) {
-        if ( ! wait_queue_.empty() ) {
-            f = & wait_queue_.front();
-            wait_queue_.pop_front();
-            BOOST_ASSERT( nullptr != f);
-        }
-        owner_ = context::id();
-        state_ = mutex_status::unlocked;
-        lk.unlock();
-
-        if ( nullptr != f) {
-            context::active()->do_signal( f);
-        }
-    }
-}
-
-}}
-
-#ifdef BOOST_HAS_ABI_HEADERS
-#  include BOOST_ABI_SUFFIX
-#endif