/** @addtogroup sctrace
* @{
*/
/** @file
*/
#include <stdio.h>
#include <stdlib.h>
#include <ipc/ipc.h>
#include <libadt/hash_table.h>
#include "proto.h"
#define SRV_PROTO_TABLE_CHAINS 32
#define METHOD_OPER_TABLE_CHAINS 32
hash_table_t srv_proto;
typedef struct {
int srv;
proto_t *proto;
link_t link;
} srv_proto_t;
typedef struct {
ipcarg_t method;
oper_t *oper;
link_t link;
} method_oper_t;
hash_index_t srv_proto_hash(unsigned long key[])
{
return key[0] % SRV_PROTO_TABLE_CHAINS;
}
int srv_proto_compare(unsigned long key[], hash_count_t keys,
link_t *item)
{
srv_proto_t *sp;
sp = hash_table_get_instance(item, srv_proto_t, link);
return key[0] == sp->srv;
}
void srv_proto_remove_callback(link_t *item)
{
}
hash_table_operations_t srv_proto_ops = {
.hash = srv_proto_hash,
.compare = srv_proto_compare,
.remove_callback = srv_proto_remove_callback
};
hash_index_t method_oper_hash(unsigned long key[])
{
return key[0] % METHOD_OPER_TABLE_CHAINS;
}
int method_oper_compare(unsigned long key[], hash_count_t keys,
link_t *item)
{
method_oper_t *mo;
mo = hash_table_get_instance(item, method_oper_t, link);
return key[0] == mo->method;
}
void method_oper_remove_callback(link_t *item)
{
}
hash_table_operations_t method_oper_ops = {
.hash = method_oper_hash,
.compare = method_oper_compare,
.remove_callback = method_oper_remove_callback
};
void proto_init(void)
{
hash_table_create(&srv_proto, SRV_PROTO_TABLE_CHAINS, 1,
&srv_proto_ops);
}
void proto_cleanup(void)
{
hash_table_destroy(&srv_proto);
}
void proto_register(int srv, proto_t *proto)
{
srv_proto_t *sp;
unsigned long key;
sp
= malloc(sizeof(srv_proto_t
));
sp->srv = srv;
sp->proto = proto;
key = srv;
hash_table_insert(&srv_proto, &key, &sp->link);
}
proto_t *proto_get_by_srv(int srv)
{
unsigned long key;
link_t *item;
srv_proto_t *sp;
key = srv;
item = hash_table_find(&srv_proto, &key);
if (item == NULL) return NULL;
sp = hash_table_get_instance(item, srv_proto_t, link);
return sp->proto;
}
static void proto_struct_init(proto_t *proto, char *name)
{
proto->name = name;
hash_table_create(&proto->method_oper, SRV_PROTO_TABLE_CHAINS, 1,
&method_oper_ops);
}
proto_t *proto_new(char *name)
{
proto_t *p;
proto_struct_init(p, name);
return p;
}
void proto_add_oper(proto_t *proto, int method, oper_t *oper)
{
method_oper_t *mo;
unsigned long key;
mo
= malloc(sizeof(method_oper_t
));
mo->method = method;
mo->oper = oper;
key = method;
hash_table_insert(&proto->method_oper, &key, &mo->link);
}
oper_t *proto_get_oper(proto_t *proto, int method)
{
unsigned long key;
link_t *item;
method_oper_t *mo;
key = method;
item = hash_table_find(&proto->method_oper, &key);
if (item == NULL) return NULL;
mo = hash_table_get_instance(item, method_oper_t, link);
return mo->oper;
}
/** @}
*/