diff options
Diffstat (limited to 'framework/src/audit/src/libev/event.c')
| -rw-r--r-- | framework/src/audit/src/libev/event.c | 425 |
1 files changed, 0 insertions, 425 deletions
diff --git a/framework/src/audit/src/libev/event.c b/framework/src/audit/src/libev/event.c deleted file mode 100644 index 5586cd35..00000000 --- a/framework/src/audit/src/libev/event.c +++ /dev/null @@ -1,425 +0,0 @@ -/* - * libevent compatibility layer - * - * Copyright (c) 2007,2008,2009,2010,2012 Marc Alexander Lehmann <libev@schmorp.de> - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modifica- - * tion, are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- - * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO - * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- - * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, - * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; - * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, - * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- - * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED - * OF THE POSSIBILITY OF SUCH DAMAGE. - * - * Alternatively, the contents of this file may be used under the terms of - * the GNU General Public License ("GPL") version 2 or any later version, - * in which case the provisions of the GPL are applicable instead of - * the above. If you wish to allow the use of your version of this file - * only under the terms of the GPL and not to allow others to use your - * version of this file under the BSD license, indicate your decision - * by deleting the provisions above and replace them with the notice - * and other provisions required by the GPL. If you do not delete the - * provisions above, a recipient may use your version of this file under - * either the BSD or the GPL. - */ - -#include <stddef.h> -#include <stdlib.h> -#include <assert.h> - -#ifdef EV_EVENT_H -# include EV_EVENT_H -#else -# include "event.h" -#endif - -#if EV_MULTIPLICITY -# define dLOOPev struct ev_loop *loop = (struct ev_loop *)ev->ev_base -# define dLOOPbase struct ev_loop *loop = (struct ev_loop *)base -#else -# define dLOOPev -# define dLOOPbase -#endif - -/* never accessed, will always be cast from/to ev_loop */ -struct event_base -{ - int dummy; -}; - -static struct event_base *ev_x_cur; - -static ev_tstamp -ev_tv_get (struct timeval *tv) -{ - if (tv) - { - ev_tstamp after = tv->tv_sec + tv->tv_usec * 1e-6; - return after ? after : 1e-6; - } - else - return -1.; -} - -#define EVENT_STRINGIFY(s) # s -#define EVENT_VERSION(a,b) EVENT_STRINGIFY (a) "." EVENT_STRINGIFY (b) - -const char * -event_get_version (void) -{ - /* returns ABI, not API or library, version */ - return EVENT_VERSION (EV_VERSION_MAJOR, EV_VERSION_MINOR); -} - -const char * -event_get_method (void) -{ - return "libev"; -} - -void *event_init (void) -{ -#if EV_MULTIPLICITY - if (ev_x_cur) - ev_x_cur = (struct event_base *)ev_loop_new (EVFLAG_AUTO); - else - ev_x_cur = (struct event_base *)ev_default_loop (EVFLAG_AUTO); -#else - assert (("libev: multiple event bases not supported when not compiled with EV_MULTIPLICITY", !ev_x_cur)); - - ev_x_cur = (struct event_base *)(long)ev_default_loop (EVFLAG_AUTO); -#endif - - return ev_x_cur; -} - -const char * -event_base_get_method (const struct event_base *base) -{ - return "libev"; -} - -struct event_base * -event_base_new (void) -{ -#if EV_MULTIPLICITY - return (struct event_base *)ev_loop_new (EVFLAG_AUTO); -#else - assert (("libev: multiple event bases not supported when not compiled with EV_MULTIPLICITY")); - return NULL; -#endif -} - -void event_base_free (struct event_base *base) -{ - dLOOPbase; - -#if EV_MULTIPLICITY - if (!ev_is_default_loop (loop)) - ev_loop_destroy (loop); -#endif -} - -int event_dispatch (void) -{ - return event_base_dispatch (ev_x_cur); -} - -#ifdef EV_STANDALONE -void event_set_log_callback (event_log_cb cb) -{ - /* nop */ -} -#endif - -int event_loop (int flags) -{ - return event_base_loop (ev_x_cur, flags); -} - -int event_loopexit (struct timeval *tv) -{ - return event_base_loopexit (ev_x_cur, tv); -} - -event_callback_fn event_get_callback -(const struct event *ev) -{ - return ev->ev_callback; -} - -static void -ev_x_cb (struct event *ev, int revents) -{ - revents &= EV_READ | EV_WRITE | EV_TIMER | EV_SIGNAL; - - ev->ev_res = revents; - ev->ev_callback (ev->ev_fd, (short)revents, ev->ev_arg); -} - -static void -ev_x_cb_sig (EV_P_ struct ev_signal *w, int revents) -{ - struct event *ev = (struct event *)(((char *)w) - offsetof (struct event, iosig.sig)); - - if (revents & EV_ERROR) - event_del (ev); - - ev_x_cb (ev, revents); -} - -static void -ev_x_cb_io (EV_P_ struct ev_io *w, int revents) -{ - struct event *ev = (struct event *)(((char *)w) - offsetof (struct event, iosig.io)); - - if ((revents & EV_ERROR) || !(ev->ev_events & EV_PERSIST)) - event_del (ev); - - ev_x_cb (ev, revents); -} - -static void -ev_x_cb_to (EV_P_ struct ev_timer *w, int revents) -{ - struct event *ev = (struct event *)(((char *)w) - offsetof (struct event, to)); - - event_del (ev); - - ev_x_cb (ev, revents); -} - -void event_set (struct event *ev, int fd, short events, void (*cb)(int, short, void *), void *arg) -{ - if (events & EV_SIGNAL) - ev_init (&ev->iosig.sig, ev_x_cb_sig); - else - ev_init (&ev->iosig.io, ev_x_cb_io); - - ev_init (&ev->to, ev_x_cb_to); - - ev->ev_base = ev_x_cur; /* not threadsafe, but it's how libevent works */ - ev->ev_fd = fd; - ev->ev_events = events; - ev->ev_pri = 0; - ev->ev_callback = cb; - ev->ev_arg = arg; - ev->ev_res = 0; - ev->ev_flags = EVLIST_INIT; -} - -int event_once (int fd, short events, void (*cb)(int, short, void *), void *arg, struct timeval *tv) -{ - return event_base_once (ev_x_cur, fd, events, cb, arg, tv); -} - -int event_add (struct event *ev, struct timeval *tv) -{ - dLOOPev; - - if (ev->ev_events & EV_SIGNAL) - { - if (!ev_is_active (&ev->iosig.sig)) - { - ev_signal_set (&ev->iosig.sig, ev->ev_fd); - ev_signal_start (EV_A_ &ev->iosig.sig); - - ev->ev_flags |= EVLIST_SIGNAL; - } - } - else if (ev->ev_events & (EV_READ | EV_WRITE)) - { - if (!ev_is_active (&ev->iosig.io)) - { - ev_io_set (&ev->iosig.io, ev->ev_fd, ev->ev_events & (EV_READ | EV_WRITE)); - ev_io_start (EV_A_ &ev->iosig.io); - - ev->ev_flags |= EVLIST_INSERTED; - } - } - - if (tv) - { - ev->to.repeat = ev_tv_get (tv); - ev_timer_again (EV_A_ &ev->to); - ev->ev_flags |= EVLIST_TIMEOUT; - } - else - { - ev_timer_stop (EV_A_ &ev->to); - ev->ev_flags &= ~EVLIST_TIMEOUT; - } - - ev->ev_flags |= EVLIST_ACTIVE; - - return 0; -} - -int event_del (struct event *ev) -{ - dLOOPev; - - if (ev->ev_events & EV_SIGNAL) - ev_signal_stop (EV_A_ &ev->iosig.sig); - else if (ev->ev_events & (EV_READ | EV_WRITE)) - ev_io_stop (EV_A_ &ev->iosig.io); - - if (ev_is_active (&ev->to)) - ev_timer_stop (EV_A_ &ev->to); - - ev->ev_flags = EVLIST_INIT; - - return 0; -} - -void event_active (struct event *ev, int res, short ncalls) -{ - dLOOPev; - - if (res & EV_TIMEOUT) - ev_feed_event (EV_A_ &ev->to, res & EV_TIMEOUT); - - if (res & EV_SIGNAL) - ev_feed_event (EV_A_ &ev->iosig.sig, res & EV_SIGNAL); - - if (res & (EV_READ | EV_WRITE)) - ev_feed_event (EV_A_ &ev->iosig.io, res & (EV_READ | EV_WRITE)); -} - -int event_pending (struct event *ev, short events, struct timeval *tv) -{ - short revents = 0; - dLOOPev; - - if (ev->ev_events & EV_SIGNAL) - { - /* sig */ - if (ev_is_active (&ev->iosig.sig) || ev_is_pending (&ev->iosig.sig)) - revents |= EV_SIGNAL; - } - else if (ev->ev_events & (EV_READ | EV_WRITE)) - { - /* io */ - if (ev_is_active (&ev->iosig.io) || ev_is_pending (&ev->iosig.io)) - revents |= ev->ev_events & (EV_READ | EV_WRITE); - } - - if (ev->ev_events & EV_TIMEOUT || ev_is_active (&ev->to) || ev_is_pending (&ev->to)) - { - revents |= EV_TIMEOUT; - - if (tv) - { - ev_tstamp at = ev_now (EV_A); - - tv->tv_sec = (long)at; - tv->tv_usec = (long)((at - (ev_tstamp)tv->tv_sec) * 1e6); - } - } - - return events & revents; -} - -int event_priority_init (int npri) -{ - return event_base_priority_init (ev_x_cur, npri); -} - -int event_priority_set (struct event *ev, int pri) -{ - ev->ev_pri = pri; - - return 0; -} - -int event_base_set (struct event_base *base, struct event *ev) -{ - ev->ev_base = base; - - return 0; -} - -int event_base_loop (struct event_base *base, int flags) -{ - dLOOPbase; - - return !ev_run (EV_A_ flags); -} - -int event_base_dispatch (struct event_base *base) -{ - return event_base_loop (base, 0); -} - -static void -ev_x_loopexit_cb (int revents, void *base) -{ - dLOOPbase; - - ev_break (EV_A_ EVBREAK_ONE); -} - -int event_base_loopexit (struct event_base *base, struct timeval *tv) -{ - ev_tstamp after = ev_tv_get (tv); - dLOOPbase; - - ev_once (EV_A_ -1, 0, after >= 0. ? after : 0., ev_x_loopexit_cb, (void *)base); - - return 0; -} - -struct ev_x_once -{ - int fd; - void (*cb)(int, short, void *); - void *arg; -}; - -static void -ev_x_once_cb (int revents, void *arg) -{ - struct ev_x_once *once = (struct ev_x_once *)arg; - - once->cb (once->fd, (short)revents, once->arg); - free (once); -} - -int event_base_once (struct event_base *base, int fd, short events, void (*cb)(int, short, void *), void *arg, struct timeval *tv) -{ - struct ev_x_once *once = (struct ev_x_once *)malloc (sizeof (struct ev_x_once)); - dLOOPbase; - - if (!once) - return -1; - - once->fd = fd; - once->cb = cb; - once->arg = arg; - - ev_once (EV_A_ fd, events & (EV_READ | EV_WRITE), ev_tv_get (tv), ev_x_once_cb, (void *)once); - - return 0; -} - -int event_base_priority_init (struct event_base *base, int npri) -{ - /*dLOOPbase;*/ - - return 0; -} - |