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- /*-
- * Copyright (c) 2005 Michael Bushkov <bushman@rsu.ru>
- * All rights reserved.
- *
- * 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.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``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 OR CONTRIBUTORS 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 <sys/cdefs.h>
- #include <assert.h>
- #include <stdlib.h>
- #include <string.h>
- #include "agent.h"
- #include "debug.h"
- static int
- agent_cmp_func(const void *a1, const void *a2)
- {
- struct agent const *ap1 = *((struct agent const **)a1);
- struct agent const *ap2 = *((struct agent const **)a2);
- int res;
- res = strcmp(ap1->name, ap2->name);
- if (res == 0) {
- if (ap1->type == ap2->type)
- res = 0;
- else if (ap1->type < ap2->type)
- res = -1;
- else
- res = 1;
- }
- return (res);
- }
- struct agent_table *
- init_agent_table(void)
- {
- struct agent_table *retval;
- TRACE_IN(init_agent_table);
- retval = calloc(1, sizeof(*retval));
- assert(retval != NULL);
- TRACE_OUT(init_agent_table);
- return (retval);
- }
- void
- register_agent(struct agent_table *at, struct agent *a)
- {
- struct agent **new_agents;
- size_t new_agents_num;
- TRACE_IN(register_agent);
- assert(at != NULL);
- assert(a != NULL);
- new_agents_num = at->agents_num + 1;
- new_agents = malloc(sizeof(*new_agents) *
- new_agents_num);
- assert(new_agents != NULL);
- memcpy(new_agents, at->agents, at->agents_num * sizeof(struct agent *));
- new_agents[new_agents_num - 1] = a;
- qsort(new_agents, new_agents_num, sizeof(struct agent *),
- agent_cmp_func);
- free(at->agents);
- at->agents = new_agents;
- at->agents_num = new_agents_num;
- TRACE_OUT(register_agent);
- }
- struct agent *
- find_agent(struct agent_table *at, const char *name, enum agent_type type)
- {
- struct agent **res;
- struct agent model, *model_p;
- TRACE_IN(find_agent);
- model.name = (char *)name;
- model.type = type;
- model_p = &model;
- res = bsearch(&model_p, at->agents, at->agents_num,
- sizeof(struct agent *), agent_cmp_func);
- TRACE_OUT(find_agent);
- return ( res == NULL ? NULL : *res);
- }
- void
- destroy_agent_table(struct agent_table *at)
- {
- size_t i;
- TRACE_IN(destroy_agent_table);
- assert(at != NULL);
- for (i = 0; i < at->agents_num; ++i) {
- free(at->agents[i]->name);
- free(at->agents[i]);
- }
- free(at->agents);
- free(at);
- TRACE_OUT(destroy_agent_table);
- }
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