/src/libssh/src/threads.c
Line | Count | Source (jump to first uncovered line) |
1 | | /* |
2 | | * This file is part of the SSH Library |
3 | | * |
4 | | * Copyright (c) 2010 by Aris Adamantiadis |
5 | | * |
6 | | * The SSH Library is free software; you can redistribute it and/or modify |
7 | | * it under the terms of the GNU Lesser General Public License as published by |
8 | | * the Free Software Foundation; either version 2.1 of the License, or (at your |
9 | | * option) any later version. |
10 | | * |
11 | | * The SSH Library is distributed in the hope that it will be useful, but |
12 | | * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY |
13 | | * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public |
14 | | * License for more details. |
15 | | * |
16 | | * You should have received a copy of the GNU Lesser General Public License |
17 | | * along with the SSH Library; see the file COPYING. If not, write to |
18 | | * the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, |
19 | | * MA 02111-1307, USA. |
20 | | */ |
21 | | |
22 | | /** |
23 | | * @defgroup libssh_threads The SSH threading functions |
24 | | * @ingroup libssh |
25 | | * |
26 | | * Threading with libssh |
27 | | * @{ |
28 | | */ |
29 | | |
30 | | #include "config.h" |
31 | | |
32 | | #include "libssh/priv.h" |
33 | | #include "libssh/crypto.h" |
34 | | #include "libssh/threads.h" |
35 | | |
36 | | static struct ssh_threads_callbacks_struct *user_callbacks = NULL; |
37 | | |
38 | | /** @internal |
39 | | * @brief inits the threading with the backend cryptographic libraries |
40 | | */ |
41 | | |
42 | | int ssh_threads_init(void) |
43 | 2 | { |
44 | 2 | static int threads_initialized = 0; |
45 | 2 | int rc; |
46 | | |
47 | 2 | if (threads_initialized) { |
48 | 0 | return SSH_OK; |
49 | 0 | } |
50 | | |
51 | | /* first initialize the user_callbacks with our default handlers if not |
52 | | * already the case |
53 | | */ |
54 | 2 | if (user_callbacks == NULL){ |
55 | 2 | user_callbacks = ssh_threads_get_default(); |
56 | 2 | } |
57 | | |
58 | | /* Then initialize the crypto libraries threading callbacks */ |
59 | 2 | rc = crypto_thread_init(user_callbacks); |
60 | 2 | if (rc == SSH_OK) { |
61 | 2 | threads_initialized = 1; |
62 | 2 | } |
63 | 2 | return rc; |
64 | 2 | } |
65 | | |
66 | | void ssh_threads_finalize(void) |
67 | 0 | { |
68 | 0 | crypto_thread_finalize(); |
69 | 0 | } |
70 | | |
71 | | int ssh_threads_set_callbacks(struct ssh_threads_callbacks_struct *cb) |
72 | 0 | { |
73 | |
|
74 | 0 | int rc; |
75 | |
|
76 | 0 | if (user_callbacks != NULL) { |
77 | 0 | crypto_thread_finalize(); |
78 | 0 | } |
79 | |
|
80 | 0 | user_callbacks = cb; |
81 | |
|
82 | 0 | rc = crypto_thread_init(user_callbacks); |
83 | |
|
84 | 0 | return rc; |
85 | 0 | } |
86 | | |
87 | | const char *ssh_threads_get_type(void) |
88 | 0 | { |
89 | 0 | if (user_callbacks != NULL) { |
90 | 0 | return user_callbacks->type; |
91 | 0 | } |
92 | 0 | return NULL; |
93 | 0 | } |
94 | | |
95 | | /** |
96 | | * @} |
97 | | */ |