jpayne@69: /*
jpayne@69:  * libev simple C++ wrapper classes
jpayne@69:  *
jpayne@69:  * Copyright (c) 2007,2008,2010,2018,2020 Marc Alexander Lehmann <libev@schmorp.de>
jpayne@69:  * All rights reserved.
jpayne@69:  *
jpayne@69:  * Redistribution and use in source and binary forms, with or without modifica-
jpayne@69:  * tion, are permitted provided that the following conditions are met:
jpayne@69:  *
jpayne@69:  *   1.  Redistributions of source code must retain the above copyright notice,
jpayne@69:  *       this list of conditions and the following disclaimer.
jpayne@69:  *
jpayne@69:  *   2.  Redistributions in binary form must reproduce the above copyright
jpayne@69:  *       notice, this list of conditions and the following disclaimer in the
jpayne@69:  *       documentation and/or other materials provided with the distribution.
jpayne@69:  *
jpayne@69:  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
jpayne@69:  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
jpayne@69:  * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO
jpayne@69:  * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
jpayne@69:  * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
jpayne@69:  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
jpayne@69:  * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
jpayne@69:  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
jpayne@69:  * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
jpayne@69:  * OF THE POSSIBILITY OF SUCH DAMAGE.
jpayne@69:  *
jpayne@69:  * Alternatively, the contents of this file may be used under the terms of
jpayne@69:  * the GNU General Public License ("GPL") version 2 or any later version,
jpayne@69:  * in which case the provisions of the GPL are applicable instead of
jpayne@69:  * the above. If you wish to allow the use of your version of this file
jpayne@69:  * only under the terms of the GPL and not to allow others to use your
jpayne@69:  * version of this file under the BSD license, indicate your decision
jpayne@69:  * by deleting the provisions above and replace them with the notice
jpayne@69:  * and other provisions required by the GPL. If you do not delete the
jpayne@69:  * provisions above, a recipient may use your version of this file under
jpayne@69:  * either the BSD or the GPL.
jpayne@69:  */
jpayne@69: 
jpayne@69: #ifndef EVPP_H__
jpayne@69: #define EVPP_H__
jpayne@69: 
jpayne@69: #ifdef EV_H
jpayne@69: # include EV_H
jpayne@69: #else
jpayne@69: # include "ev.h"
jpayne@69: #endif
jpayne@69: 
jpayne@69: #ifndef EV_USE_STDEXCEPT
jpayne@69: # define EV_USE_STDEXCEPT 1
jpayne@69: #endif
jpayne@69: 
jpayne@69: #if EV_USE_STDEXCEPT
jpayne@69: # include <stdexcept>
jpayne@69: #endif
jpayne@69: 
jpayne@69: namespace ev {
jpayne@69: 
jpayne@69:   typedef ev_tstamp tstamp;
jpayne@69: 
jpayne@69:   enum {
jpayne@69:     UNDEF    = EV_UNDEF,
jpayne@69:     NONE     = EV_NONE,
jpayne@69:     READ     = EV_READ,
jpayne@69:     WRITE    = EV_WRITE,
jpayne@69: #if EV_COMPAT3
jpayne@69:     TIMEOUT  = EV_TIMEOUT,
jpayne@69: #endif
jpayne@69:     TIMER    = EV_TIMER,
jpayne@69:     PERIODIC = EV_PERIODIC,
jpayne@69:     SIGNAL   = EV_SIGNAL,
jpayne@69:     CHILD    = EV_CHILD,
jpayne@69:     STAT     = EV_STAT,
jpayne@69:     IDLE     = EV_IDLE,
jpayne@69:     CHECK    = EV_CHECK,
jpayne@69:     PREPARE  = EV_PREPARE,
jpayne@69:     FORK     = EV_FORK,
jpayne@69:     ASYNC    = EV_ASYNC,
jpayne@69:     EMBED    = EV_EMBED,
jpayne@69: #   undef ERROR // some systems stupidly #define ERROR
jpayne@69:     ERROR    = EV_ERROR
jpayne@69:   };
jpayne@69: 
jpayne@69:   enum
jpayne@69:   {
jpayne@69:     AUTO      = EVFLAG_AUTO,
jpayne@69:     NOENV     = EVFLAG_NOENV,
jpayne@69:     FORKCHECK = EVFLAG_FORKCHECK,
jpayne@69: 
jpayne@69:     SELECT    = EVBACKEND_SELECT,
jpayne@69:     POLL      = EVBACKEND_POLL,
jpayne@69:     EPOLL     = EVBACKEND_EPOLL,
jpayne@69:     KQUEUE    = EVBACKEND_KQUEUE,
jpayne@69:     DEVPOLL   = EVBACKEND_DEVPOLL,
jpayne@69:     PORT      = EVBACKEND_PORT
jpayne@69:   };
jpayne@69: 
jpayne@69:   enum
jpayne@69:   {
jpayne@69: #if EV_COMPAT3
jpayne@69:     NONBLOCK = EVLOOP_NONBLOCK,
jpayne@69:     ONESHOT  = EVLOOP_ONESHOT,
jpayne@69: #endif
jpayne@69:     NOWAIT   = EVRUN_NOWAIT,
jpayne@69:     ONCE     = EVRUN_ONCE
jpayne@69:   };
jpayne@69: 
jpayne@69:   enum how_t
jpayne@69:   {
jpayne@69:     ONE = EVBREAK_ONE,
jpayne@69:     ALL = EVBREAK_ALL
jpayne@69:   };
jpayne@69: 
jpayne@69:   struct bad_loop
jpayne@69: #if EV_USE_STDEXCEPT
jpayne@69:   : std::exception
jpayne@69: #endif
jpayne@69:   {
jpayne@69: #if EV_USE_STDEXCEPT
jpayne@69:     const char *what () const EV_NOEXCEPT
jpayne@69:     {
jpayne@69:       return "libev event loop cannot be initialized, bad value of LIBEV_FLAGS?";
jpayne@69:     }
jpayne@69: #endif
jpayne@69:   };
jpayne@69: 
jpayne@69: #ifdef EV_AX
jpayne@69: #  undef EV_AX
jpayne@69: #endif
jpayne@69: 
jpayne@69: #ifdef EV_AX_
jpayne@69: #  undef EV_AX_
jpayne@69: #endif
jpayne@69: 
jpayne@69: #if EV_MULTIPLICITY
jpayne@69: #  define EV_AX  raw_loop
jpayne@69: #  define EV_AX_ raw_loop,
jpayne@69: #else
jpayne@69: #  define EV_AX
jpayne@69: #  define EV_AX_
jpayne@69: #endif
jpayne@69: 
jpayne@69:   struct loop_ref
jpayne@69:   {
jpayne@69:     loop_ref (EV_P) EV_NOEXCEPT
jpayne@69: #if EV_MULTIPLICITY
jpayne@69:     : EV_AX (EV_A)
jpayne@69: #endif
jpayne@69:     {
jpayne@69:     }
jpayne@69: 
jpayne@69:     bool operator == (const loop_ref &other) const EV_NOEXCEPT
jpayne@69:     {
jpayne@69: #if EV_MULTIPLICITY
jpayne@69:       return EV_AX == other.EV_AX;
jpayne@69: #else
jpayne@69:       return true;
jpayne@69: #endif
jpayne@69:     }
jpayne@69: 
jpayne@69:     bool operator != (const loop_ref &other) const EV_NOEXCEPT
jpayne@69:     {
jpayne@69: #if EV_MULTIPLICITY
jpayne@69:       return ! (*this == other);
jpayne@69: #else
jpayne@69:       return false;
jpayne@69: #endif
jpayne@69:     }
jpayne@69: 
jpayne@69: #if EV_MULTIPLICITY
jpayne@69:     bool operator == (const EV_P) const EV_NOEXCEPT
jpayne@69:     {
jpayne@69:       return this->EV_AX == EV_A;
jpayne@69:     }
jpayne@69: 
jpayne@69:     bool operator != (const EV_P) const EV_NOEXCEPT
jpayne@69:     {
jpayne@69:       return ! (*this == EV_A);
jpayne@69:     }
jpayne@69: 
jpayne@69:     operator struct ev_loop * () const EV_NOEXCEPT
jpayne@69:     {
jpayne@69:       return EV_AX;
jpayne@69:     }
jpayne@69: 
jpayne@69:     operator const struct ev_loop * () const EV_NOEXCEPT
jpayne@69:     {
jpayne@69:       return EV_AX;
jpayne@69:     }
jpayne@69: 
jpayne@69:     bool is_default () const EV_NOEXCEPT
jpayne@69:     {
jpayne@69:       return EV_AX == ev_default_loop (0);
jpayne@69:     }
jpayne@69: #endif
jpayne@69: 
jpayne@69: #if EV_COMPAT3
jpayne@69:     void loop (int flags = 0)
jpayne@69:     {
jpayne@69:       ev_run (EV_AX_ flags);
jpayne@69:     }
jpayne@69: 
jpayne@69:     void unloop (how_t how = ONE) EV_NOEXCEPT
jpayne@69:     {
jpayne@69:       ev_break (EV_AX_ how);
jpayne@69:     }
jpayne@69: #endif
jpayne@69: 
jpayne@69:     void run (int flags = 0)
jpayne@69:     {
jpayne@69:       ev_run (EV_AX_ flags);
jpayne@69:     }
jpayne@69: 
jpayne@69:     void break_loop (how_t how = ONE) EV_NOEXCEPT
jpayne@69:     {
jpayne@69:       ev_break (EV_AX_ how);
jpayne@69:     }
jpayne@69: 
jpayne@69:     void post_fork () EV_NOEXCEPT
jpayne@69:     {
jpayne@69:       ev_loop_fork (EV_AX);
jpayne@69:     }
jpayne@69: 
jpayne@69:     unsigned int backend () const EV_NOEXCEPT
jpayne@69:     {
jpayne@69:       return ev_backend (EV_AX);
jpayne@69:     }
jpayne@69: 
jpayne@69:     tstamp now () const EV_NOEXCEPT
jpayne@69:     {
jpayne@69:       return ev_now (EV_AX);
jpayne@69:     }
jpayne@69: 
jpayne@69:     void ref () EV_NOEXCEPT
jpayne@69:     {
jpayne@69:       ev_ref (EV_AX);
jpayne@69:     }
jpayne@69: 
jpayne@69:     void unref () EV_NOEXCEPT
jpayne@69:     {
jpayne@69:       ev_unref (EV_AX);
jpayne@69:     }
jpayne@69: 
jpayne@69: #if EV_FEATURE_API
jpayne@69:     unsigned int iteration () const EV_NOEXCEPT
jpayne@69:     {
jpayne@69:       return ev_iteration (EV_AX);
jpayne@69:     }
jpayne@69: 
jpayne@69:     unsigned int depth () const EV_NOEXCEPT
jpayne@69:     {
jpayne@69:       return ev_depth (EV_AX);
jpayne@69:     }
jpayne@69: 
jpayne@69:     void set_io_collect_interval (tstamp interval) EV_NOEXCEPT
jpayne@69:     {
jpayne@69:       ev_set_io_collect_interval (EV_AX_ interval);
jpayne@69:     }
jpayne@69: 
jpayne@69:     void set_timeout_collect_interval (tstamp interval) EV_NOEXCEPT
jpayne@69:     {
jpayne@69:       ev_set_timeout_collect_interval (EV_AX_ interval);
jpayne@69:     }
jpayne@69: #endif
jpayne@69: 
jpayne@69:     // function callback
jpayne@69:     void once (int fd, int events, tstamp timeout, void (*cb)(int, void *), void *arg = 0) EV_NOEXCEPT
jpayne@69:     {
jpayne@69:       ev_once (EV_AX_ fd, events, timeout, cb, arg);
jpayne@69:     }
jpayne@69: 
jpayne@69:     // method callback
jpayne@69:     template<class K, void (K::*method)(int)>
jpayne@69:     void once (int fd, int events, tstamp timeout, K *object) EV_NOEXCEPT
jpayne@69:     {
jpayne@69:       once (fd, events, timeout, method_thunk<K, method>, object);
jpayne@69:     }
jpayne@69: 
jpayne@69:     // default method == operator ()
jpayne@69:     template<class K>
jpayne@69:     void once (int fd, int events, tstamp timeout, K *object) EV_NOEXCEPT
jpayne@69:     {
jpayne@69:       once (fd, events, timeout, method_thunk<K, &K::operator ()>, object);
jpayne@69:     }
jpayne@69: 
jpayne@69:     template<class K, void (K::*method)(int)>
jpayne@69:     static void method_thunk (int revents, void *arg)
jpayne@69:     {
jpayne@69:       (static_cast<K *>(arg)->*method)
jpayne@69:         (revents);
jpayne@69:     }
jpayne@69: 
jpayne@69:     // no-argument method callback
jpayne@69:     template<class K, void (K::*method)()>
jpayne@69:     void once (int fd, int events, tstamp timeout, K *object) EV_NOEXCEPT
jpayne@69:     {
jpayne@69:       once (fd, events, timeout, method_noargs_thunk<K, method>, object);
jpayne@69:     }
jpayne@69: 
jpayne@69:     template<class K, void (K::*method)()>
jpayne@69:     static void method_noargs_thunk (int revents, void *arg)
jpayne@69:     {
jpayne@69:       (static_cast<K *>(arg)->*method)
jpayne@69:         ();
jpayne@69:     }
jpayne@69: 
jpayne@69:     // simpler function callback
jpayne@69:     template<void (*cb)(int)>
jpayne@69:     void once (int fd, int events, tstamp timeout) EV_NOEXCEPT
jpayne@69:     {
jpayne@69:       once (fd, events, timeout, simpler_func_thunk<cb>);
jpayne@69:     }
jpayne@69: 
jpayne@69:     template<void (*cb)(int)>
jpayne@69:     static void simpler_func_thunk (int revents, void *arg)
jpayne@69:     {
jpayne@69:       (*cb)
jpayne@69:         (revents);
jpayne@69:     }
jpayne@69: 
jpayne@69:     // simplest function callback
jpayne@69:     template<void (*cb)()>
jpayne@69:     void once (int fd, int events, tstamp timeout) EV_NOEXCEPT
jpayne@69:     {
jpayne@69:       once (fd, events, timeout, simplest_func_thunk<cb>);
jpayne@69:     }
jpayne@69: 
jpayne@69:     template<void (*cb)()>
jpayne@69:     static void simplest_func_thunk (int revents, void *arg)
jpayne@69:     {
jpayne@69:       (*cb)
jpayne@69:         ();
jpayne@69:     }
jpayne@69: 
jpayne@69:     void feed_fd_event (int fd, int revents) EV_NOEXCEPT
jpayne@69:     {
jpayne@69:       ev_feed_fd_event (EV_AX_ fd, revents);
jpayne@69:     }
jpayne@69: 
jpayne@69:     void feed_signal_event (int signum) EV_NOEXCEPT
jpayne@69:     {
jpayne@69:       ev_feed_signal_event (EV_AX_ signum);
jpayne@69:     }
jpayne@69: 
jpayne@69: #if EV_MULTIPLICITY
jpayne@69:     struct ev_loop* EV_AX;
jpayne@69: #endif
jpayne@69: 
jpayne@69:   };
jpayne@69: 
jpayne@69: #if EV_MULTIPLICITY
jpayne@69:   struct dynamic_loop : loop_ref
jpayne@69:   {
jpayne@69: 
jpayne@69:     dynamic_loop (unsigned int flags = AUTO)
jpayne@69:     : loop_ref (ev_loop_new (flags))
jpayne@69:     {
jpayne@69:       if (!EV_AX)
jpayne@69:         throw bad_loop ();
jpayne@69:     }
jpayne@69: 
jpayne@69:     ~dynamic_loop () EV_NOEXCEPT
jpayne@69:     {
jpayne@69:       ev_loop_destroy (EV_AX);
jpayne@69:       EV_AX = 0;
jpayne@69:     }
jpayne@69: 
jpayne@69:   private:
jpayne@69: 
jpayne@69:     dynamic_loop (const dynamic_loop &);
jpayne@69: 
jpayne@69:     dynamic_loop & operator= (const dynamic_loop &);
jpayne@69: 
jpayne@69:   };
jpayne@69: #endif
jpayne@69: 
jpayne@69:   struct default_loop : loop_ref
jpayne@69:   {
jpayne@69:     default_loop (unsigned int flags = AUTO)
jpayne@69: #if EV_MULTIPLICITY
jpayne@69:     : loop_ref (ev_default_loop (flags))
jpayne@69: #endif
jpayne@69:     {
jpayne@69:       if (
jpayne@69: #if EV_MULTIPLICITY
jpayne@69:           !EV_AX
jpayne@69: #else
jpayne@69:           !ev_default_loop (flags)
jpayne@69: #endif
jpayne@69:       )
jpayne@69:         throw bad_loop ();
jpayne@69:     }
jpayne@69: 
jpayne@69:   private:
jpayne@69:     default_loop (const default_loop &);
jpayne@69:     default_loop &operator = (const default_loop &);
jpayne@69:   };
jpayne@69: 
jpayne@69:   inline loop_ref get_default_loop () EV_NOEXCEPT
jpayne@69:   {
jpayne@69: #if EV_MULTIPLICITY
jpayne@69:     return ev_default_loop (0);
jpayne@69: #else
jpayne@69:     return loop_ref ();
jpayne@69: #endif
jpayne@69:   }
jpayne@69: 
jpayne@69: #undef EV_AX
jpayne@69: #undef EV_AX_
jpayne@69: 
jpayne@69: #undef EV_PX
jpayne@69: #undef EV_PX_
jpayne@69: #if EV_MULTIPLICITY
jpayne@69: #  define EV_PX  loop_ref EV_A
jpayne@69: #  define EV_PX_ loop_ref EV_A_
jpayne@69: #else
jpayne@69: #  define EV_PX
jpayne@69: #  define EV_PX_
jpayne@69: #endif
jpayne@69: 
jpayne@69:   template<class ev_watcher, class watcher>
jpayne@69:   struct base : ev_watcher
jpayne@69:   {
jpayne@69:     // scoped pause/unpause of a watcher
jpayne@69:     struct freeze_guard
jpayne@69:     {
jpayne@69:       watcher &w;
jpayne@69:       bool active;
jpayne@69: 
jpayne@69:       freeze_guard (watcher *self) EV_NOEXCEPT
jpayne@69:       : w (*self), active (w.is_active ())
jpayne@69:       {
jpayne@69:         if (active) w.stop ();
jpayne@69:       }
jpayne@69: 
jpayne@69:       ~freeze_guard ()
jpayne@69:       {
jpayne@69:         if (active) w.start ();
jpayne@69:       }
jpayne@69:     };
jpayne@69: 
jpayne@69:     #if EV_MULTIPLICITY
jpayne@69:       EV_PX;
jpayne@69: 
jpayne@69:       // loop set
jpayne@69:       void set (EV_P) EV_NOEXCEPT
jpayne@69:       {
jpayne@69:         this->EV_A = EV_A;
jpayne@69:       }
jpayne@69:     #endif
jpayne@69: 
jpayne@69:     base (EV_PX) EV_NOEXCEPT
jpayne@69:     #if EV_MULTIPLICITY
jpayne@69:       : EV_A (EV_A)
jpayne@69:     #endif
jpayne@69:     {
jpayne@69:       ev_init (this, 0);
jpayne@69:     }
jpayne@69: 
jpayne@69:     void set_ (const void *data, void (*cb)(EV_P_ ev_watcher *w, int revents)) EV_NOEXCEPT
jpayne@69:     {
jpayne@69:       this->data = (void *)data;
jpayne@69:       ev_set_cb (static_cast<ev_watcher *>(this), cb);
jpayne@69:     }
jpayne@69: 
jpayne@69:     // function callback
jpayne@69:     template<void (*function)(watcher &w, int)>
jpayne@69:     void set (void *data = 0) EV_NOEXCEPT
jpayne@69:     {
jpayne@69:       set_ (data, function_thunk<function>);
jpayne@69:     }
jpayne@69: 
jpayne@69:     template<void (*function)(watcher &w, int)>
jpayne@69:     static void function_thunk (EV_P_ ev_watcher *w, int revents)
jpayne@69:     {
jpayne@69:       function
jpayne@69:         (*static_cast<watcher *>(w), revents);
jpayne@69:     }
jpayne@69: 
jpayne@69:     // method callback
jpayne@69:     template<class K, void (K::*method)(watcher &w, int)>
jpayne@69:     void set (K *object) EV_NOEXCEPT
jpayne@69:     {
jpayne@69:       set_ (object, method_thunk<K, method>);
jpayne@69:     }
jpayne@69: 
jpayne@69:     // default method == operator ()
jpayne@69:     template<class K>
jpayne@69:     void set (K *object) EV_NOEXCEPT
jpayne@69:     {
jpayne@69:       set_ (object, method_thunk<K, &K::operator ()>);
jpayne@69:     }
jpayne@69: 
jpayne@69:     template<class K, void (K::*method)(watcher &w, int)>
jpayne@69:     static void method_thunk (EV_P_ ev_watcher *w, int revents)
jpayne@69:     {
jpayne@69:       (static_cast<K *>(w->data)->*method)
jpayne@69:         (*static_cast<watcher *>(w), revents);
jpayne@69:     }
jpayne@69: 
jpayne@69:     // no-argument callback
jpayne@69:     template<class K, void (K::*method)()>
jpayne@69:     void set (K *object) EV_NOEXCEPT
jpayne@69:     {
jpayne@69:       set_ (object, method_noargs_thunk<K, method>);
jpayne@69:     }
jpayne@69: 
jpayne@69:     template<class K, void (K::*method)()>
jpayne@69:     static void method_noargs_thunk (EV_P_ ev_watcher *w, int revents)
jpayne@69:     {
jpayne@69:       (static_cast<K *>(w->data)->*method)
jpayne@69:         ();
jpayne@69:     }
jpayne@69: 
jpayne@69:     void operator ()(int events = EV_UNDEF)
jpayne@69:     {
jpayne@69:       return
jpayne@69:         ev_cb (static_cast<ev_watcher *>(this))
jpayne@69:           (static_cast<ev_watcher *>(this), events);
jpayne@69:     }
jpayne@69: 
jpayne@69:     bool is_active () const EV_NOEXCEPT
jpayne@69:     {
jpayne@69:       return ev_is_active (static_cast<const ev_watcher *>(this));
jpayne@69:     }
jpayne@69: 
jpayne@69:     bool is_pending () const EV_NOEXCEPT
jpayne@69:     {
jpayne@69:       return ev_is_pending (static_cast<const ev_watcher *>(this));
jpayne@69:     }
jpayne@69: 
jpayne@69:     void feed_event (int revents) EV_NOEXCEPT
jpayne@69:     {
jpayne@69:       ev_feed_event (EV_A_ static_cast<ev_watcher *>(this), revents);
jpayne@69:     }
jpayne@69:   };
jpayne@69: 
jpayne@69:   inline tstamp now (EV_P) EV_NOEXCEPT
jpayne@69:   {
jpayne@69:     return ev_now (EV_A);
jpayne@69:   }
jpayne@69: 
jpayne@69:   inline void delay (tstamp interval) EV_NOEXCEPT
jpayne@69:   {
jpayne@69:     ev_sleep (interval);
jpayne@69:   }
jpayne@69: 
jpayne@69:   inline int version_major () EV_NOEXCEPT
jpayne@69:   {
jpayne@69:     return ev_version_major ();
jpayne@69:   }
jpayne@69: 
jpayne@69:   inline int version_minor () EV_NOEXCEPT
jpayne@69:   {
jpayne@69:     return ev_version_minor ();
jpayne@69:   }
jpayne@69: 
jpayne@69:   inline unsigned int supported_backends () EV_NOEXCEPT
jpayne@69:   {
jpayne@69:     return ev_supported_backends ();
jpayne@69:   }
jpayne@69: 
jpayne@69:   inline unsigned int recommended_backends () EV_NOEXCEPT
jpayne@69:   {
jpayne@69:     return ev_recommended_backends ();
jpayne@69:   }
jpayne@69: 
jpayne@69:   inline unsigned int embeddable_backends () EV_NOEXCEPT
jpayne@69:   {
jpayne@69:     return ev_embeddable_backends ();
jpayne@69:   }
jpayne@69: 
jpayne@69:   inline void set_allocator (void *(*cb)(void *ptr, long size) EV_NOEXCEPT) EV_NOEXCEPT
jpayne@69:   {
jpayne@69:     ev_set_allocator (cb);
jpayne@69:   }
jpayne@69: 
jpayne@69:   inline void set_syserr_cb (void (*cb)(const char *msg) EV_NOEXCEPT) EV_NOEXCEPT
jpayne@69:   {
jpayne@69:     ev_set_syserr_cb (cb);
jpayne@69:   }
jpayne@69: 
jpayne@69:   #if EV_MULTIPLICITY
jpayne@69:     #define EV_CONSTRUCT(cppstem,cstem)	                                                \
jpayne@69:       (EV_PX = get_default_loop ()) EV_NOEXCEPT                                         \
jpayne@69:         : base<ev_ ## cstem, cppstem> (EV_A)                                            \
jpayne@69:       {                                                                                 \
jpayne@69:       }
jpayne@69:   #else
jpayne@69:     #define EV_CONSTRUCT(cppstem,cstem)                                                 \
jpayne@69:       () EV_NOEXCEPT                                                                    \
jpayne@69:       {                                                                                 \
jpayne@69:       }
jpayne@69:   #endif
jpayne@69: 
jpayne@69:   /* using a template here would require quite a few more lines,
jpayne@69:    * so a macro solution was chosen */
jpayne@69:   #define EV_BEGIN_WATCHER(cppstem,cstem)	                                        \
jpayne@69:                                                                                         \
jpayne@69:   struct cppstem : base<ev_ ## cstem, cppstem>                                          \
jpayne@69:   {                                                                                     \
jpayne@69:     void start () EV_NOEXCEPT                                                           \
jpayne@69:     {                                                                                   \
jpayne@69:       ev_ ## cstem ## _start (EV_A_ static_cast<ev_ ## cstem *>(this));                 \
jpayne@69:     }                                                                                   \
jpayne@69:                                                                                         \
jpayne@69:     void stop () EV_NOEXCEPT                                                            \
jpayne@69:     {                                                                                   \
jpayne@69:       ev_ ## cstem ## _stop (EV_A_ static_cast<ev_ ## cstem *>(this));                  \
jpayne@69:     }                                                                                   \
jpayne@69:                                                                                         \
jpayne@69:     cppstem EV_CONSTRUCT(cppstem,cstem)                                                 \
jpayne@69:                                                                                         \
jpayne@69:     ~cppstem () EV_NOEXCEPT                                                             \
jpayne@69:     {                                                                                   \
jpayne@69:       stop ();                                                                          \
jpayne@69:     }                                                                                   \
jpayne@69:                                                                                         \
jpayne@69:     using base<ev_ ## cstem, cppstem>::set;                                             \
jpayne@69:                                                                                         \
jpayne@69:   private:                                                                              \
jpayne@69:                                                                                         \
jpayne@69:     cppstem (const cppstem &o);                                                         \
jpayne@69:                                                                                         \
jpayne@69:     cppstem &operator =(const cppstem &o);                                              \
jpayne@69:                                                                                         \
jpayne@69:   public:
jpayne@69: 
jpayne@69:   #define EV_END_WATCHER(cppstem,cstem)	                                                \
jpayne@69:   };
jpayne@69: 
jpayne@69:   EV_BEGIN_WATCHER (io, io)
jpayne@69:     void set (int fd, int events) EV_NOEXCEPT
jpayne@69:     {
jpayne@69:       freeze_guard freeze (this);
jpayne@69:       ev_io_set (static_cast<ev_io *>(this), fd, events);
jpayne@69:     }
jpayne@69: 
jpayne@69:     void set (int events) EV_NOEXCEPT
jpayne@69:     {
jpayne@69:       freeze_guard freeze (this);
jpayne@69:       ev_io_modify (static_cast<ev_io *>(this), events);
jpayne@69:     }
jpayne@69: 
jpayne@69:     void start (int fd, int events) EV_NOEXCEPT
jpayne@69:     {
jpayne@69:       set (fd, events);
jpayne@69:       start ();
jpayne@69:     }
jpayne@69:   EV_END_WATCHER (io, io)
jpayne@69: 
jpayne@69:   EV_BEGIN_WATCHER (timer, timer)
jpayne@69:     void set (ev_tstamp after, ev_tstamp repeat = 0.) EV_NOEXCEPT
jpayne@69:     {
jpayne@69:       freeze_guard freeze (this);
jpayne@69:       ev_timer_set (static_cast<ev_timer *>(this), after, repeat);
jpayne@69:     }
jpayne@69: 
jpayne@69:     void start (ev_tstamp after, ev_tstamp repeat = 0.) EV_NOEXCEPT
jpayne@69:     {
jpayne@69:       set (after, repeat);
jpayne@69:       start ();
jpayne@69:     }
jpayne@69: 
jpayne@69:     void again () EV_NOEXCEPT
jpayne@69:     {
jpayne@69:       ev_timer_again (EV_A_ static_cast<ev_timer *>(this));
jpayne@69:     }
jpayne@69: 
jpayne@69:     ev_tstamp remaining ()
jpayne@69:     {
jpayne@69:       return ev_timer_remaining (EV_A_ static_cast<ev_timer *>(this));
jpayne@69:     }
jpayne@69:   EV_END_WATCHER (timer, timer)
jpayne@69: 
jpayne@69:   #if EV_PERIODIC_ENABLE
jpayne@69:   EV_BEGIN_WATCHER (periodic, periodic)
jpayne@69:     void set (ev_tstamp at, ev_tstamp interval = 0.) EV_NOEXCEPT
jpayne@69:     {
jpayne@69:       freeze_guard freeze (this);
jpayne@69:       ev_periodic_set (static_cast<ev_periodic *>(this), at, interval, 0);
jpayne@69:     }
jpayne@69: 
jpayne@69:     void start (ev_tstamp at, ev_tstamp interval = 0.) EV_NOEXCEPT
jpayne@69:     {
jpayne@69:       set (at, interval);
jpayne@69:       start ();
jpayne@69:     }
jpayne@69: 
jpayne@69:     void again () EV_NOEXCEPT
jpayne@69:     {
jpayne@69:       ev_periodic_again (EV_A_ static_cast<ev_periodic *>(this));
jpayne@69:     }
jpayne@69:   EV_END_WATCHER (periodic, periodic)
jpayne@69:   #endif
jpayne@69: 
jpayne@69:   #if EV_SIGNAL_ENABLE
jpayne@69:   EV_BEGIN_WATCHER (sig, signal)
jpayne@69:     void set (int signum) EV_NOEXCEPT
jpayne@69:     {
jpayne@69:       freeze_guard freeze (this);
jpayne@69:       ev_signal_set (static_cast<ev_signal *>(this), signum);
jpayne@69:     }
jpayne@69: 
jpayne@69:     void start (int signum) EV_NOEXCEPT
jpayne@69:     {
jpayne@69:       set (signum);
jpayne@69:       start ();
jpayne@69:     }
jpayne@69:   EV_END_WATCHER (sig, signal)
jpayne@69:   #endif
jpayne@69: 
jpayne@69:   #if EV_CHILD_ENABLE
jpayne@69:   EV_BEGIN_WATCHER (child, child)
jpayne@69:     void set (int pid, int trace = 0) EV_NOEXCEPT
jpayne@69:     {
jpayne@69:       freeze_guard freeze (this);
jpayne@69:       ev_child_set (static_cast<ev_child *>(this), pid, trace);
jpayne@69:     }
jpayne@69: 
jpayne@69:     void start (int pid, int trace = 0) EV_NOEXCEPT
jpayne@69:     {
jpayne@69:       set (pid, trace);
jpayne@69:       start ();
jpayne@69:     }
jpayne@69:   EV_END_WATCHER (child, child)
jpayne@69:   #endif
jpayne@69: 
jpayne@69:   #if EV_STAT_ENABLE
jpayne@69:   EV_BEGIN_WATCHER (stat, stat)
jpayne@69:     void set (const char *path, ev_tstamp interval = 0.) EV_NOEXCEPT
jpayne@69:     {
jpayne@69:       freeze_guard freeze (this);
jpayne@69:       ev_stat_set (static_cast<ev_stat *>(this), path, interval);
jpayne@69:     }
jpayne@69: 
jpayne@69:     void start (const char *path, ev_tstamp interval = 0.) EV_NOEXCEPT
jpayne@69:     {
jpayne@69:       stop ();
jpayne@69:       set (path, interval);
jpayne@69:       start ();
jpayne@69:     }
jpayne@69: 
jpayne@69:     void update () EV_NOEXCEPT
jpayne@69:     {
jpayne@69:       ev_stat_stat (EV_A_ static_cast<ev_stat *>(this));
jpayne@69:     }
jpayne@69:   EV_END_WATCHER (stat, stat)
jpayne@69:   #endif
jpayne@69: 
jpayne@69:   #if EV_IDLE_ENABLE
jpayne@69:   EV_BEGIN_WATCHER (idle, idle)
jpayne@69:     void set () EV_NOEXCEPT { }
jpayne@69:   EV_END_WATCHER (idle, idle)
jpayne@69:   #endif
jpayne@69: 
jpayne@69:   #if EV_PREPARE_ENABLE
jpayne@69:   EV_BEGIN_WATCHER (prepare, prepare)
jpayne@69:     void set () EV_NOEXCEPT { }
jpayne@69:   EV_END_WATCHER (prepare, prepare)
jpayne@69:   #endif
jpayne@69: 
jpayne@69:   #if EV_CHECK_ENABLE
jpayne@69:   EV_BEGIN_WATCHER (check, check)
jpayne@69:     void set () EV_NOEXCEPT { }
jpayne@69:   EV_END_WATCHER (check, check)
jpayne@69:   #endif
jpayne@69: 
jpayne@69:   #if EV_EMBED_ENABLE
jpayne@69:   EV_BEGIN_WATCHER (embed, embed)
jpayne@69:     void set_embed (struct ev_loop *embedded_loop) EV_NOEXCEPT
jpayne@69:     {
jpayne@69:       freeze_guard freeze (this);
jpayne@69:       ev_embed_set (static_cast<ev_embed *>(this), embedded_loop);
jpayne@69:     }
jpayne@69: 
jpayne@69:     void start (struct ev_loop *embedded_loop) EV_NOEXCEPT
jpayne@69:     {
jpayne@69:       set (embedded_loop);
jpayne@69:       start ();
jpayne@69:     }
jpayne@69: 
jpayne@69:     void sweep ()
jpayne@69:     {
jpayne@69:       ev_embed_sweep (EV_A_ static_cast<ev_embed *>(this));
jpayne@69:     }
jpayne@69:   EV_END_WATCHER (embed, embed)
jpayne@69:   #endif
jpayne@69: 
jpayne@69:   #if EV_FORK_ENABLE
jpayne@69:   EV_BEGIN_WATCHER (fork, fork)
jpayne@69:     void set () EV_NOEXCEPT { }
jpayne@69:   EV_END_WATCHER (fork, fork)
jpayne@69:   #endif
jpayne@69: 
jpayne@69:   #if EV_ASYNC_ENABLE
jpayne@69:   EV_BEGIN_WATCHER (async, async)
jpayne@69:     void send () EV_NOEXCEPT
jpayne@69:     {
jpayne@69:       ev_async_send (EV_A_ static_cast<ev_async *>(this));
jpayne@69:     }
jpayne@69: 
jpayne@69:     bool async_pending () EV_NOEXCEPT
jpayne@69:     {
jpayne@69:       return ev_async_pending (static_cast<ev_async *>(this));
jpayne@69:     }
jpayne@69:   EV_END_WATCHER (async, async)
jpayne@69:   #endif
jpayne@69: 
jpayne@69:   #undef EV_PX
jpayne@69:   #undef EV_PX_
jpayne@69:   #undef EV_CONSTRUCT
jpayne@69:   #undef EV_BEGIN_WATCHER
jpayne@69:   #undef EV_END_WATCHER
jpayne@69: }
jpayne@69: 
jpayne@69: #endif
jpayne@69: