/*- * 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); }