77 lines
2.0 KiB
C
77 lines
2.0 KiB
C
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/*
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* libwebsockets - small server side websockets and web server implementation
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*
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* Copyright (C) 2010 - 2018 Andy Green <andy@warmcat.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation:
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* version 2.1 of the License.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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* MA 02110-1301 USA
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*/
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#ifndef _WINSOCK_DEPRECATED_NO_WARNINGS
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#define _WINSOCK_DEPRECATED_NO_WARNINGS
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#endif
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#include "core/private.h"
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struct lws *
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wsi_from_fd(const struct lws_context *context, lws_sockfd_type fd)
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{
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int h = LWS_FD_HASH(fd);
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int n = 0;
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for (n = 0; n < context->fd_hashtable[h].length; n++)
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if (context->fd_hashtable[h].wsi[n]->desc.sockfd == fd)
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return context->fd_hashtable[h].wsi[n];
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return NULL;
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}
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int
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insert_wsi(struct lws_context *context, struct lws *wsi)
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{
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int h = LWS_FD_HASH(wsi->desc.sockfd);
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if (context->fd_hashtable[h].length == (getdtablesize() - 1)) {
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lwsl_err("hash table overflow\n");
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return 1;
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}
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context->fd_hashtable[h].wsi[context->fd_hashtable[h].length++] = wsi;
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return 0;
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}
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int
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delete_from_fd(struct lws_context *context, lws_sockfd_type fd)
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{
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int h = LWS_FD_HASH(fd);
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int n = 0;
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for (n = 0; n < context->fd_hashtable[h].length; n++)
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if (context->fd_hashtable[h].wsi[n]->desc.sockfd == fd) {
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while (n < context->fd_hashtable[h].length) {
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context->fd_hashtable[h].wsi[n] =
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context->fd_hashtable[h].wsi[n + 1];
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n++;
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}
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context->fd_hashtable[h].length--;
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return 0;
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}
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lwsl_err("Failed to find fd %d requested for "
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"delete in hashtable\n", fd);
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return 1;
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}
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