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/*
* Copyright 2018-2021 Konsulko Group
* Author: Matt Ranostay <matt.ranostay@konsulko.com>
* Author: Pantelis Antoniou <pantelis.antoniou@konsulko.com>
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#define _GNU_SOURCE
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <unistd.h>
#include <errno.h>
#include <pthread.h>
#include <semaphore.h>
#include <glib.h>
#include <stdlib.h>
#include <gio/gio.h>
#include <glib-object.h>
#include "common.h"
#include "call_work.h"
#include "bluez-call.h"
void call_work_lock(struct bluez_state *ns)
{
g_mutex_lock(&ns->cw_mutex);
}
void call_work_unlock(struct bluez_state *ns)
{
g_mutex_unlock(&ns->cw_mutex);
}
struct call_work *call_work_lookup_unlocked(
struct bluez_state *ns,
const char *access_type,
const char *type_arg,
const char *method)
{
struct call_work *cw;
GSList *list;
/* we can only allow a single pending call */
for (list = ns->cw_pending; list; list = g_slist_next(list)) {
cw = list->data;
if (!g_strcmp0(access_type, cw->access_type) &&
!g_strcmp0(type_arg, cw->type_arg) &&
!g_strcmp0(method, cw->method))
return cw;
}
return NULL;
}
struct call_work *call_work_lookup(
struct bluez_state *ns,
const char *access_type,
const char *type_arg,
const char *method)
{
struct call_work *cw;
g_mutex_lock(&ns->cw_mutex);
cw = call_work_lookup_unlocked(ns, access_type, type_arg, method);
g_mutex_unlock(&ns->cw_mutex);
return cw;
}
int call_work_pending_id(
struct bluez_state *ns,
const char *access_type,
const char *type_arg,
const char *method)
{
struct call_work *cw;
int id = -1;
g_mutex_lock(&ns->cw_mutex);
cw = call_work_lookup_unlocked(ns, access_type, type_arg, method);
if (cw)
id = cw->id;
g_mutex_unlock(&ns->cw_mutex);
return id;
}
struct call_work *call_work_lookup_by_id_unlocked(struct bluez_state *ns, int id)
{
struct call_work *cw;
GSList *list;
/* we can only allow a single pending call */
for (list = ns->cw_pending; list; list = g_slist_next(list)) {
cw = list->data;
if (cw->id == id)
return cw;
}
return NULL;
}
struct call_work *call_work_lookup_by_id(struct bluez_state *ns, int id)
{
struct call_work *cw;
g_mutex_lock(&ns->cw_mutex);
cw = call_work_lookup_by_id_unlocked(ns, id);
g_mutex_unlock(&ns->cw_mutex);
return cw;
}
struct call_work *call_work_create_unlocked(struct bluez_state *ns,
const char *access_type,
const char *type_arg,
const char *method,
const char *bluez_method,
GError **error)
{
struct call_work *cw = NULL;
cw = call_work_lookup_unlocked(ns, access_type, type_arg, method);
if (cw) {
g_set_error(error, BLUEZ_ERROR, BLUEZ_ERROR_CALL_IN_PROGRESS,
"another call in progress (%s/%s/%s)",
access_type, type_arg, method);
return NULL;
}
/* no other pending; allocate */
cw = g_malloc0(sizeof(*cw));
cw->ns = ns;
do {
cw->id = ns->next_cw_id;
if (++ns->next_cw_id < 0)
ns->next_cw_id = 1;
} while (call_work_lookup_by_id_unlocked(ns, cw->id));
cw->access_type = g_strdup(access_type);
cw->type_arg = g_strdup(type_arg);
cw->method = g_strdup(method);
cw->bluez_method = g_strdup(bluez_method);
ns->cw_pending = g_slist_prepend(ns->cw_pending, cw);
return cw;
}
struct call_work *call_work_create(struct bluez_state *ns,
const char *access_type,
const char *type_arg,
const char *method,
const char *bluez_method,
GError **error)
{
struct call_work *cw;
g_mutex_lock(&ns->cw_mutex);
cw = call_work_create_unlocked(ns,
access_type, type_arg, method, bluez_method,
error);
g_mutex_unlock(&ns->cw_mutex);
return cw;
}
void call_work_destroy_unlocked(struct call_work *cw)
{
struct bluez_state *ns = cw->ns;
struct call_work *cw2;
/* verify that it's something we know about */
cw2 = call_work_lookup_by_id_unlocked(ns, cw->id);
if (cw2 != cw) {
ERROR("Bad call work to destroy");
return;
}
/* remove it */
ns->cw_pending = g_slist_remove(ns->cw_pending, cw);
/* agent struct data */
g_free(cw->agent_data.device_path);
cw->agent_data.device_path = NULL;
g_free(cw->access_type);
g_free(cw->type_arg);
g_free(cw->method);
g_free(cw->bluez_method);
g_free(cw->agent_data.fixed_pincode);
cw->agent_data.fixed_pincode = NULL;
}
void call_work_destroy(struct call_work *cw)
{
struct bluez_state *ns = cw->ns;
g_mutex_lock(&ns->cw_mutex);
call_work_destroy_unlocked(cw);
g_mutex_unlock(&ns->cw_mutex);
}
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