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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>
__FBSDID("$FreeBSD$");
#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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