blob: c6e747d8e70f9b7f40a39ad94c817c937bfe0f25 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
|
/*
* Copyright (c) 2012 Samsung Electronics Co., Ltd All Rights Reserved
*
* 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.
*/
#include "download-agent-type.h"
#include "download-agent-utils.h"
#include "download-agent-utils-dl-id-history.h"
da_result_t init_dl_id_history(dl_id_history_t *dl_id_history)
{
da_result_t ret = DA_RESULT_OK;
/* Initial dl_id_history will be starting number for dl_id.
* dl_id will be sequentially increased from the dl_id_history,
* then dl_id_history will be updated. */
_da_thread_mutex_init(&(dl_id_history->mutex), DA_NULL);
_da_thread_mutex_lock(&(dl_id_history->mutex));
get_random_number(&(dl_id_history->starting_num));
dl_id_history->cur_dl_id = DA_INVALID_ID;
_da_thread_mutex_unlock(&(dl_id_history->mutex));
DA_LOG_VERBOSE(Default,"starting num = %d", dl_id_history->starting_num);
return ret;
}
da_result_t deinit_dl_id_history(dl_id_history_t *dl_id_history)
{
da_result_t ret = DA_RESULT_OK;
_da_thread_mutex_lock(&(dl_id_history->mutex));
dl_id_history->starting_num = DA_INVALID_ID;
dl_id_history->cur_dl_id = DA_INVALID_ID;
_da_thread_mutex_unlock(&(dl_id_history->mutex));
_da_thread_mutex_destroy(&(dl_id_history->mutex));
return ret;
}
int get_available_dl_id(dl_id_history_t *dl_id_history)
{
int dl_id = 0;
_da_thread_mutex_lock(&(dl_id_history->mutex));
if (dl_id_history->cur_dl_id == DA_INVALID_ID)
dl_id_history->cur_dl_id = dl_id_history->starting_num;
else if (dl_id_history->cur_dl_id > 254)
dl_id_history->cur_dl_id = 1;
else
dl_id_history->cur_dl_id++;
dl_id = dl_id_history->cur_dl_id;
_da_thread_mutex_unlock(&(dl_id_history->mutex));
DA_LOG_VERBOSE(Default,"dl_id = %d", dl_id);
return dl_id;
}
|
