mirror of
https://github.com/ntop/ntopng.git
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65 lines
2 KiB
C++
65 lines
2 KiB
C++
/*
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*
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* (C) 2013-25 - ntop.org
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*
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program 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
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*
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*/
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#include "ntop_includes.h"
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/* ************************************ */
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ObservationPointHash::ObservationPointHash(NetworkInterface *_iface,
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u_int _num_hashes,
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u_int _max_hash_size)
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: GenericHash(_iface, _num_hashes, _max_hash_size, "ObservationPointHash") {
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if(trace_new_delete) ntop->getTrace()->traceEvent(TRACE_NORMAL, "[new] %s", __FILE__);
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}
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/* ************************************ */
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ObservationPoint *ObservationPointHash::get(u_int16_t obs_point,
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bool is_inline_call) {
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if (obs_point == 0 || obs_point == (u_int16_t)-1)
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return (NULL);
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else {
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u_int32_t hash = obs_point;
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hash %= num_hashes;
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if (table[hash] == NULL) {
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return (NULL);
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} else {
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ObservationPoint *head;
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if (!is_inline_call) locks[hash]->rdlock(__FILE__, __LINE__);
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head = (ObservationPoint *)table[hash];
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while (head != NULL) {
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if ((!head->idle()) && head->equal(obs_point))
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break;
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else
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head = (ObservationPoint *)head->next();
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}
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if (!is_inline_call) locks[hash]->unlock(__FILE__, __LINE__);
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return (head);
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}
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}
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}
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