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Annotation of embedaddon/strongswan/src/libimcv/swima/swima_events.c, revision 1.1.1.1

1.1       misho       1: /*
                      2:  * Copyright (C) 2017 Andreas Steffen
                      3:  * HSR Hochschule fuer Technik Rapperswil
                      4:  *
                      5:  * This program is free software; you can redistribute it and/or modify it
                      6:  * under the terms of the GNU General Public License as published by the
                      7:  * Free Software Foundation; either version 2 of the License, or (at your
                      8:  * option) any later version.  See <http://www.fsf.org/copyleft/gpl.txt>.
                      9:  *
                     10:  * This program is distributed in the hope that it will be useful, but
                     11:  * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
                     12:  * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
                     13:  * for more details.
                     14:  */
                     15: 
                     16: #include "swima_events.h"
                     17: #include "swima_record.h"
                     18: 
                     19: #include <collections/linked_list.h>
                     20: #include <utils/debug.h>
                     21: 
                     22: typedef struct private_swima_events_t private_swima_events_t;
                     23: 
                     24: /**
                     25:  * Private data of a swima_events_t object.
                     26:  *
                     27:  */
                     28: struct private_swima_events_t {
                     29: 
                     30:        /**
                     31:         * Public swima_events_t interface.
                     32:         */
                     33:        swima_events_t public;
                     34: 
                     35:        /**
                     36:         * Epoch of Event IDs
                     37:         */
                     38:        uint32_t epoch;
                     39: 
                     40:        /**
                     41:         * Last Event ID
                     42:         */
                     43:        uint32_t last_eid;
                     44: 
                     45:        /**
                     46:         * Last Consulted Event ID
                     47:         */
                     48:        uint32_t last_consulted_eid;
                     49: 
                     50:        /**
                     51:         * List of SW records
                     52:         */
                     53:        linked_list_t *list;
                     54: 
                     55:        /**
                     56:         * Reference count
                     57:         */
                     58:        refcount_t ref;
                     59: 
                     60: };
                     61: 
                     62: METHOD(swima_events_t, add, void,
                     63:        private_swima_events_t *this, swima_event_t *event)
                     64: {
                     65:        this->list->insert_last(this->list, event);
                     66: }
                     67: 
                     68: METHOD(swima_events_t, get_count, int,
                     69:        private_swima_events_t *this)
                     70: {
                     71:        return this->list->get_count(this->list);
                     72: }
                     73: 
                     74: METHOD(swima_events_t, set_eid, void,
                     75:        private_swima_events_t *this, uint32_t eid, uint32_t epoch)
                     76: {
                     77:        this->last_eid = this->last_consulted_eid = eid;
                     78:        this->epoch = epoch;
                     79: }
                     80: 
                     81: METHOD(swima_events_t, set_last_eid, void,
                     82:        private_swima_events_t *this, uint32_t last_eid)
                     83: {
                     84:        this->last_eid = last_eid;
                     85: }
                     86: 
                     87: METHOD(swima_events_t, get_eid, uint32_t,
                     88:        private_swima_events_t *this, uint32_t *epoch, uint32_t *last_eid)
                     89: {
                     90:        if (epoch)
                     91:        {
                     92:                *epoch = this->epoch;
                     93:        }
                     94:        if (last_eid)
                     95:        {
                     96:                *last_eid = this->last_eid;
                     97:        }
                     98:        return this->last_consulted_eid;
                     99: }
                    100: 
                    101: METHOD(swima_events_t, create_enumerator, enumerator_t*,
                    102:        private_swima_events_t *this)
                    103: {
                    104:        return this->list->create_enumerator(this->list);
                    105: }
                    106: 
                    107: METHOD(swima_events_t, get_ref, swima_events_t*,
                    108:        private_swima_events_t *this)
                    109: {
                    110:        ref_get(&this->ref);
                    111:        return &this->public;
                    112: }
                    113: 
                    114: METHOD(swima_events_t, clear, void,
                    115:        private_swima_events_t *this)
                    116: {
                    117:        this->list->destroy_offset(this->list, offsetof(swima_event_t, destroy));
                    118:        this->list = linked_list_create();
                    119: }
                    120: 
                    121: METHOD(swima_events_t, destroy, void,
                    122:        private_swima_events_t *this)
                    123: {
                    124:        if (ref_put(&this->ref))
                    125:        {
                    126:                this->list->destroy_offset(this->list, offsetof(swima_event_t, destroy));
                    127:                free(this);
                    128:        }
                    129: }
                    130: 
                    131: /**
                    132:  * See header
                    133:  */
                    134: swima_events_t *swima_events_create(void)
                    135: {
                    136:        private_swima_events_t *this;
                    137: 
                    138:        INIT(this,
                    139:                .public = {
                    140:                        .add = _add,
                    141:                        .get_count = _get_count,
                    142:                        .set_eid = _set_eid,
                    143:                        .set_last_eid = _set_last_eid,
                    144:                        .get_eid = _get_eid,
                    145:                        .create_enumerator = _create_enumerator,
                    146:                        .get_ref = _get_ref,
                    147:                        .clear = _clear,
                    148:                        .destroy = _destroy,
                    149:                },
                    150:                .list = linked_list_create(),
                    151:                .ref = 1,
                    152:        );
                    153: 
                    154:        return &this->public;
                    155: }