FM / common

/usr/include/stxxl/bits/common

Name	Size	Mode	Actions
addressable_queues.h	6036	0644	edit dl rm
aligned_alloc.h	5387	0644	edit dl rm
binary_buffer.h	20063	0644	edit dl rm
cmdline.h	23482	0644	edit dl rm
condition_variable.h	2141	0644	edit dl rm
counting_ptr.h	16404	0644	edit dl rm
error_handling.h	7702	0644	edit dl rm
exceptions.h	2000	0644	edit dl rm
exithandler.h	1400	0644	edit dl rm
external_shared_ptr.h	3760	0644	edit dl rm
is_sorted.h	1818	0644	edit dl rm
log.h	1265	0644	edit dl rm
mutex.h	3332	0644	edit dl rm
new_alloc.h	3901	0644	edit dl rm
onoff_switch.h	2146	0644	edit dl rm
rand.h	8191	0644	edit dl rm
seed.h	863	0644	edit dl rm
semaphore.h	2449	0644	edit dl rm
settings.h	971	0644	edit dl rm
simple_vector.h	4639	0644	edit dl rm
state.h	1687	0644	edit dl rm
timer.h	4662	0644	edit dl rm
tmeta.h	2988	0644	edit dl rm
tuple.h	19553	0644	edit dl rm
types.h	1923	0644	edit dl rm
uint_types.h	9572	0644	edit dl rm
utils.h	8380	0644	edit dl rm

Edit: /usr/include/stxxl/bits/common/onoff_switch.h (2146B)

#ifndef STXXL_COMMON_ONOFF_SWITCH_HEADER
#define STXXL_COMMON_ONOFF_SWITCH_HEADER

#include <stxxl/bits/config.h>

#include <stxxl/bits/noncopyable.h>
#include <stxxl/bits/common/mutex.h>
#include <stxxl/bits/common/condition_variable.h>

STXXL_BEGIN_NAMESPACE

class onoff_switch : private noncopyable
{
    //! mutex for condition variable
    mutex m_mutex;

//! condition variable
    condition_variable m_cond;

//! the switch's state
    bool m_on;

public:
    //! construct switch
    onoff_switch(bool flag = false)
        : m_on(flag)
    { }
    //! turn switch ON and notify one waiter
    void on()
    {
        scoped_mutex_lock lock(m_mutex);
        m_on = true;
        lock.unlock();
        m_cond.notify_one();
    }
    //! turn switch OFF and notify one waiter
    void off()
    {
        scoped_mutex_lock lock(m_mutex);
        m_on = false;
        lock.unlock();
        m_cond.notify_one();
    }
    //! wait for switch to turn ON
    void wait_for_on()
    {
        scoped_mutex_lock lock(m_mutex);
        if (!m_on)
            m_cond.wait(lock);
    }
    //! wait for switch to turn OFF
    void wait_for_off()
    {
        scoped_mutex_lock lock(m_mutex);
        if (m_on)
            m_cond.wait(lock);
    }
    //! return true if switch is ON
    bool is_on()
    {
        scoped_mutex_lock lock(m_mutex);
        return m_on;
    }
};

STXXL_END_NAMESPACE

#endif // !STXXL_COMMON_ONOFF_SWITCH_HEADER

/*************************************************************************** * include/stxxl/bits/common/onoff_switch.h * * Kind of binary semaphore: initially OFF, then multiple waiters can attach * to the switch, which get notified one-by-one when switched ON. * * Part of the STXXL. See http://stxxl.sourceforge.net * * Copyright (C) 2002 Roman Dementiev * Copyright (C) 2013 Timo Bingmann * * 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 STXXL_COMMON_ONOFF_SWITCH_HEADER #define STXXL_COMMON_ONOFF_SWITCH_HEADER #include #include #include #include STXXL_BEGIN_NAMESPACE class onoff_switch : private noncopyable { //! mutex for condition variable mutex m_mutex; //! condition variable condition_variable m_cond; //! the switch's state bool m_on; public: //! construct switch onoff_switch(bool flag = false) : m_on(flag) { } //! turn switch ON and notify one waiter void on() { scoped_mutex_lock lock(m_mutex); m_on = true; lock.unlock(); m_cond.notify_one(); } //! turn switch OFF and notify one waiter void off() { scoped_mutex_lock lock(m_mutex); m_on = false; lock.unlock(); m_cond.notify_one(); } //! wait for switch to turn ON void wait_for_on() { scoped_mutex_lock lock(m_mutex); if (!m_on) m_cond.wait(lock); } //! wait for switch to turn OFF void wait_for_off() { scoped_mutex_lock lock(m_mutex); if (m_on) m_cond.wait(lock); } //! return true if switch is ON bool is_on() { scoped_mutex_lock lock(m_mutex); return m_on; } }; STXXL_END_NAMESPACE #endif // !STXXL_COMMON_ONOFF_SWITCH_HEADER