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/*************************************************************************
This file is part of libresource
Copyright (C) 2010 Nokia Corporation.
This library is free software; you can redistribute
it and/or modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation
version 2.1 of the License.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301
USA.
*************************************************************************/
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <stdarg.h>
#include "res-conn-private.h"
#include "dbus-proto.h"
#include "internal-proto.h"
#include "visibility.h"
static resconn_t *resconn_list;
#define VALID 1
#define INVALID 0
static int manager_valid_message[RESMSG_MAX] = {
[RESMSG_REGISTER ] = VALID ,
[RESMSG_UNREGISTER] = VALID ,
[RESMSG_UPDATE ] = VALID ,
[RESMSG_ACQUIRE ] = VALID ,
[RESMSG_RELEASE ] = VALID ,
[RESMSG_GRANT ] = INVALID ,
[RESMSG_ADVICE ] = INVALID ,
[RESMSG_AUDIO ] = VALID ,
};
static int client_valid_message[RESMSG_MAX] = {
[RESMSG_REGISTER ] = INVALID ,
[RESMSG_UNREGISTER] = VALID ,
[RESMSG_UPDATE ] = INVALID ,
[RESMSG_ACQUIRE ] = INVALID ,
[RESMSG_RELEASE ] = INVALID ,
[RESMSG_GRANT ] = VALID ,
[RESMSG_ADVICE ] = VALID ,
[RESMSG_AUDIO ] = INVALID ,
};
#undef INVALID
#undef VALID
static int manager_link_handler(resconn_t *, char *, resproto_linkst_t);
static int client_link_handler(resconn_t *, char *, resproto_linkst_t);
static void resconn_list_add(resconn_t *);
static void resconn_list_delete(resconn_t *);
resconn_t *resconn_init(resproto_role_t role,
resproto_transport_t transp,
va_list args)
{
static uint32_t id;
resconn_t *rcon;
int success;
if ((rcon = malloc(sizeof(resconn_t))) != NULL) {
memset(rcon, 0, sizeof(resconn_t));
rcon->any.id = ++id;
rcon->any.role = role;
rcon->any.transp = transp;
switch (role) {
case RESPROTO_ROLE_MANAGER:
rcon->any.link = manager_link_handler;
rcon->any.valid = manager_valid_message;
switch (transp) {
case RESPROTO_TRANSPORT_DBUS:
success = resproto_dbus_manager_init(&rcon->dbus, args);
break;
case RESPROTO_TRANSPORT_INTERNAL:
success = resproto_internal_manager_init(&rcon->internal,args);
break;
default:
success = FALSE;
}
break;
case RESPROTO_ROLE_CLIENT:
rcon->any.link = client_link_handler;
rcon->any.valid = client_valid_message;
switch (transp) {
case RESPROTO_TRANSPORT_DBUS:
success = resproto_dbus_client_init(&rcon->dbus, args);
break;
case RESPROTO_TRANSPORT_INTERNAL:
success = resproto_internal_client_init(&rcon->internal, args);
break;
default:
success = FALSE;
}
break;
default:
success = FALSE;
break;
}
if (!success)
goto failed;
resconn_list_add(rcon);
}
return rcon;
failed:
free(rcon);
return NULL;
}
EXPORT resset_t *resconn_connect(resconn_t *rcon,
resmsg_t *resmsg,
resproto_status_t status)
{
resset_t *rset;
if (rcon == NULL || rcon->any.killed ||
rcon->any.role != RESPROTO_ROLE_CLIENT ||
resmsg->type != RESMSG_REGISTER)
{
rset = NULL;
}
else {
rset = rcon->any.connect(rcon, resmsg);
rcon->any.send(rset, resmsg, status);
}
return rset;
}
EXPORT int resconn_disconnect(resset_t *rset,
resmsg_t *resmsg,
resproto_status_t status)
{
resconn_t *rcon = rset->resconn;
int success;
if (rset == NULL ||
rset->state != RESPROTO_RSET_STATE_CONNECTED ||
resmsg->type != RESMSG_UNREGISTER )
{
success = FALSE;
}
else {
if ((success = rcon->any.send(rset, resmsg, status)))
rcon->any.disconn(rset);
}
return success;
}
resconn_reply_t *resconn_reply_create(resmsg_type_t type,
uint32_t serial,
uint32_t reqno,
resset_t *rset,
resproto_status_t status)
{
resconn_any_t *rcon = &rset->resconn->any;
resconn_reply_t *reply;
resconn_reply_t *last;
for (last = (void *)&rcon->replies; last->next; last = last->next)
;
if ((reply = malloc(sizeof(resconn_reply_t))) != NULL) {
memset(reply, 0, sizeof(resconn_reply_t));
reply->type = type;
reply->serial = serial;
reply->reqno = reqno;
reply->callback = status;
reply->rset = rset;
last->next = reply;
}
return reply;
}
void resconn_reply_destroy(void *ptr)
{
resconn_reply_t *reply = (resconn_reply_t *)ptr;
resset_t *rset;
resconn_t *rcon;
resconn_reply_t *prev;
if (reply != NULL) {
if ((rset = reply->rset) != NULL && (rcon = rset->resconn) != NULL) {
for (prev = (void *)&rcon->any.replies;
prev->next != NULL;
prev = prev->next)
{
if (prev->next == reply) {
prev->next = reply->next;
free(reply);
break;
}
}
}
}
}
resconn_reply_t *resconn_reply_find(resconn_t *rcon, uint32_t serial)
{
resconn_reply_t *reply;
for (reply = rcon->any.replies; reply != NULL; reply = reply->next) {
if (serial == reply->serial)
break;
}
return reply;
}
static int manager_link_handler(resconn_t *rcon,
char *peer,
resproto_linkst_t state)
{
resset_t *rset;
resset_t *next;
resmsg_t resmsg;
int found;
resproto_handler_t handler;
(void)state; /* supposed to be always RESPROTO_LINK_DOWN */
found = FALSE;
handler = rcon->any.handler[RESMSG_UNREGISTER];
memset(&resmsg, 0, sizeof(resmsg));
resmsg.possess.type = RESMSG_UNREGISTER;
for (rset = rcon->any.rsets; rset != NULL; rset = next) {
next = rset->next;
if (!strcmp(peer, rset->peer)) {
if (handler && rset->state == RESPROTO_RSET_STATE_CONNECTED) {
resmsg.possess.id = rset->id;
handler(&resmsg, rset, NULL);
}
rcon->any.disconn(rset);
found = TRUE;
}
}
return found;
}
static int client_link_handler(resconn_t *rcon,
char *peer,
resproto_linkst_t state)
{
resset_t *rset, *next;
resmsg_t resmsg;
resproto_handler_t handler;
switch (state) {
case RESPROTO_LINK_UP:
if (rcon->any.mgrup)
rcon->any.mgrup(rcon);
break;
case RESPROTO_LINK_DOWN:
handler = rcon->any.handler[RESMSG_UNREGISTER];
memset(&resmsg, 0, sizeof(resmsg));
resmsg.possess.type = RESMSG_UNREGISTER;
for (rset = rcon->any.rsets; rset != NULL; rset = next) {
next = rset->next;
if (handler && rset->state == RESPROTO_RSET_STATE_CONNECTED) {
resmsg.possess.id = rset->id;
handler(&resmsg, rset, NULL);
}
rcon->any.disconn(rset);
}
break;
default:
break;
}
return FALSE;
}
static void resconn_list_add(resconn_t *rcon)
{
if (rcon != NULL) {
rcon->any.next = resconn_list;
resconn_list = rcon;
}
}
static void resconn_list_delete(resconn_t *rcon)
{
resconn_t *prev;
for (prev = (resconn_t *)&resconn_list;
prev->any.next != NULL;
prev = prev->any.next)
{
if (prev->any.next == rcon) {
prev->any.next = rcon->any.next;
free(rcon);
}
}
}
resconn_t *resconn_list_iterate(resconn_t *rcon)
{
if (rcon == NULL)
rcon = (resconn_t *)&resconn_list;
return rcon->any.next;
}
/*
* Local Variables:
* c-basic-offset: 4
* indent-tabs-mode: nil
* End:
* vim:set expandtab shiftwidth=4:
*/
|
