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-rw-r--r--protocols/Telegram/tgl/libevent/select.c346
1 files changed, 0 insertions, 346 deletions
diff --git a/protocols/Telegram/tgl/libevent/select.c b/protocols/Telegram/tgl/libevent/select.c
deleted file mode 100644
index 8ae53cc11e..0000000000
--- a/protocols/Telegram/tgl/libevent/select.c
+++ /dev/null
@@ -1,346 +0,0 @@
-/* $OpenBSD: select.c,v 1.2 2002/06/25 15:50:15 mickey Exp $ */
-
-/*
- * Copyright 2000-2007 Niels Provos <provos@citi.umich.edu>
- * Copyright 2007-2012 Niels Provos and Nick Mathewson
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, 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.
- * 3. The name of the author may not be used to endorse or promote products
- * derived from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
- * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, 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 OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-#include "event2/event-config.h"
-#include "evconfig-private.h"
-
-#ifdef EVENT__HAVE_SELECT
-
-#ifdef __APPLE__
-/* Apple wants us to define this if we might ever pass more than
- * FD_SETSIZE bits to select(). */
-#define _DARWIN_UNLIMITED_SELECT
-#endif
-
-#include <sys/types.h>
-#ifdef EVENT__HAVE_SYS_TIME_H
-#include <sys/time.h>
-#endif
-#ifdef EVENT__HAVE_SYS_SELECT_H
-#include <sys/select.h>
-#endif
-#include <sys/queue.h>
-#include <signal.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-#include <errno.h>
-
-#include "event-internal.h"
-#include "evsignal-internal.h"
-#include "event2/thread.h"
-#include "evthread-internal.h"
-#include "log-internal.h"
-#include "evmap-internal.h"
-
-#ifndef EVENT__HAVE_FD_MASK
-/* This type is mandatory, but Android doesn't define it. */
-typedef unsigned long fd_mask;
-#endif
-
-#ifndef NFDBITS
-#define NFDBITS (sizeof(fd_mask)*8)
-#endif
-
-/* Divide positive x by y, rounding up. */
-#define DIV_ROUNDUP(x, y) (((x)+((y)-1))/(y))
-
-/* How many bytes to allocate for N fds? */
-#define SELECT_ALLOC_SIZE(n) \
- (DIV_ROUNDUP(n, NFDBITS) * sizeof(fd_mask))
-
-struct selectop {
- int event_fds; /* Highest fd in fd set */
- int event_fdsz;
- int resize_out_sets;
- fd_set *event_readset_in;
- fd_set *event_writeset_in;
- fd_set *event_readset_out;
- fd_set *event_writeset_out;
-};
-
-static void *select_init(struct event_base *);
-static int select_add(struct event_base *, int, short old, short events, void*);
-static int select_del(struct event_base *, int, short old, short events, void*);
-static int select_dispatch(struct event_base *, struct timeval *);
-static void select_dealloc(struct event_base *);
-
-const struct eventop selectops = {
- "select",
- select_init,
- select_add,
- select_del,
- select_dispatch,
- select_dealloc,
- 0, /* doesn't need reinit. */
- EV_FEATURE_FDS,
- 0,
-};
-
-static int select_resize(struct selectop *sop, int fdsz);
-static void select_free_selectop(struct selectop *sop);
-
-static void *
-select_init(struct event_base *base)
-{
- struct selectop *sop;
-
- if (!(sop = mm_calloc(1, sizeof(struct selectop))))
- return (NULL);
-
- if (select_resize(sop, SELECT_ALLOC_SIZE(32 + 1))) {
- select_free_selectop(sop);
- return (NULL);
- }
-
- evsig_init_(base);
-
- evutil_weakrand_seed_(&base->weakrand_seed, 0);
-
- return (sop);
-}
-
-#ifdef CHECK_INVARIANTS
-static void
-check_selectop(struct selectop *sop)
-{
- /* nothing to be done here */
-}
-#else
-#define check_selectop(sop) do { (void) sop; } while (0)
-#endif
-
-static int
-select_dispatch(struct event_base *base, struct timeval *tv)
-{
- int res=0, i, j, nfds;
- struct selectop *sop = base->evbase;
-
- check_selectop(sop);
- if (sop->resize_out_sets) {
- fd_set *readset_out=NULL, *writeset_out=NULL;
- size_t sz = sop->event_fdsz;
- if (!(readset_out = mm_realloc(sop->event_readset_out, sz)))
- return (-1);
- sop->event_readset_out = readset_out;
- if (!(writeset_out = mm_realloc(sop->event_writeset_out, sz))) {
- /* We don't free readset_out here, since it was
- * already successfully reallocated. The next time
- * we call select_dispatch, the realloc will be a
- * no-op. */
- return (-1);
- }
- sop->event_writeset_out = writeset_out;
- sop->resize_out_sets = 0;
- }
-
- memcpy(sop->event_readset_out, sop->event_readset_in,
- sop->event_fdsz);
- memcpy(sop->event_writeset_out, sop->event_writeset_in,
- sop->event_fdsz);
-
- nfds = sop->event_fds+1;
-
- EVBASE_RELEASE_LOCK(base, th_base_lock);
-
- res = select(nfds, sop->event_readset_out,
- sop->event_writeset_out, NULL, tv);
-
- EVBASE_ACQUIRE_LOCK(base, th_base_lock);
-
- check_selectop(sop);
-
- if (res == -1) {
- if (errno != EINTR) {
- event_warn("select");
- return (-1);
- }
-
- return (0);
- }
-
- event_debug(("%s: select reports %d", __func__, res));
-
- check_selectop(sop);
- i = evutil_weakrand_range_(&base->weakrand_seed, nfds);
- for (j = 0; j < nfds; ++j) {
- if (++i >= nfds)
- i = 0;
- res = 0;
- if (FD_ISSET(i, sop->event_readset_out))
- res |= EV_READ;
- if (FD_ISSET(i, sop->event_writeset_out))
- res |= EV_WRITE;
-
- if (res == 0)
- continue;
-
- evmap_io_active_(base, i, res);
- }
- check_selectop(sop);
-
- return (0);
-}
-
-static int
-select_resize(struct selectop *sop, int fdsz)
-{
- fd_set *readset_in = NULL;
- fd_set *writeset_in = NULL;
-
- if (sop->event_readset_in)
- check_selectop(sop);
-
- if ((readset_in = mm_realloc(sop->event_readset_in, fdsz)) == NULL)
- goto error;
- sop->event_readset_in = readset_in;
- if ((writeset_in = mm_realloc(sop->event_writeset_in, fdsz)) == NULL) {
- /* Note that this will leave event_readset_in expanded.
- * That's okay; we wouldn't want to free it, since that would
- * change the semantics of select_resize from "expand the
- * readset_in and writeset_in, or return -1" to "expand the
- * *set_in members, or trash them and return -1."
- */
- goto error;
- }
- sop->event_writeset_in = writeset_in;
- sop->resize_out_sets = 1;
-
- memset((char *)sop->event_readset_in + sop->event_fdsz, 0,
- fdsz - sop->event_fdsz);
- memset((char *)sop->event_writeset_in + sop->event_fdsz, 0,
- fdsz - sop->event_fdsz);
-
- sop->event_fdsz = fdsz;
- check_selectop(sop);
-
- return (0);
-
- error:
- event_warn("malloc");
- return (-1);
-}
-
-
-static int
-select_add(struct event_base *base, int fd, short old, short events, void *p)
-{
- struct selectop *sop = base->evbase;
- (void) p;
-
- EVUTIL_ASSERT((events & EV_SIGNAL) == 0);
- check_selectop(sop);
- /*
- * Keep track of the highest fd, so that we can calculate the size
- * of the fd_sets for select(2)
- */
- if (sop->event_fds < fd) {
- int fdsz = sop->event_fdsz;
-
- if (fdsz < (int)sizeof(fd_mask))
- fdsz = (int)sizeof(fd_mask);
-
- /* In theory we should worry about overflow here. In
- * reality, though, the highest fd on a unixy system will
- * not overflow here. XXXX */
- while (fdsz < (int) SELECT_ALLOC_SIZE(fd + 1))
- fdsz *= 2;
-
- if (fdsz != sop->event_fdsz) {
- if (select_resize(sop, fdsz)) {
- check_selectop(sop);
- return (-1);
- }
- }
-
- sop->event_fds = fd;
- }
-
- if (events & EV_READ)
- FD_SET(fd, sop->event_readset_in);
- if (events & EV_WRITE)
- FD_SET(fd, sop->event_writeset_in);
- check_selectop(sop);
-
- return (0);
-}
-
-/*
- * Nothing to be done here.
- */
-
-static int
-select_del(struct event_base *base, int fd, short old, short events, void *p)
-{
- struct selectop *sop = base->evbase;
- (void)p;
-
- EVUTIL_ASSERT((events & EV_SIGNAL) == 0);
- check_selectop(sop);
-
- if (sop->event_fds < fd) {
- check_selectop(sop);
- return (0);
- }
-
- if (events & EV_READ)
- FD_CLR(fd, sop->event_readset_in);
-
- if (events & EV_WRITE)
- FD_CLR(fd, sop->event_writeset_in);
-
- check_selectop(sop);
- return (0);
-}
-
-static void
-select_free_selectop(struct selectop *sop)
-{
- if (sop->event_readset_in)
- mm_free(sop->event_readset_in);
- if (sop->event_writeset_in)
- mm_free(sop->event_writeset_in);
- if (sop->event_readset_out)
- mm_free(sop->event_readset_out);
- if (sop->event_writeset_out)
- mm_free(sop->event_writeset_out);
-
- memset(sop, 0, sizeof(struct selectop));
- mm_free(sop);
-}
-
-static void
-select_dealloc(struct event_base *base)
-{
- evsig_dealloc_(base);
-
- select_free_selectop(base->evbase);
-}
-
-#endif /* EVENT__HAVE_SELECT */
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