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
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
|
/*
Unix SMB/CIFS implementation.
SMB client library implementation (thread interface functions).
Copyright (C) Jeremy Allison, 2009.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/*
* This code is based in the ideas in openssl
* but somewhat simpler and expended to include
* thread local storage.
*/
#include "includes.h"
#define NUM_GLOBAL_LOCKS 1
/*********************************************************
Functions to vector the locking primitives used internally
by libsmbclient.
*********************************************************/
const struct smb_thread_functions *global_tfp;
/*********************************************************
Dynamic lock array.
*********************************************************/
void **global_lock_array;
/*********************************************************
Function to set the locking primitives used by libsmbclient.
*********************************************************/
int smb_thread_set_functions(const struct smb_thread_functions *tf)
{
int i;
global_tfp = tf;
/* Here we initialize any static locks we're using. */
global_lock_array = (void **)SMB_MALLOC_ARRAY(void *, NUM_GLOBAL_LOCKS);
if (global_lock_array == NULL) {
return ENOMEM;
}
for (i = 0; i < NUM_GLOBAL_LOCKS; i++) {
char *name = NULL;
if (asprintf(&name, "global_lock_%d", i) == -1) {
SAFE_FREE(global_lock_array);
return ENOMEM;
}
global_tfp->create_mutex(name,
&global_lock_array[i],
__location__);
SAFE_FREE(name);
}
return 0;
}
#if 0
/* Test. - pthread implementations. */
#include <pthread.h>
#ifdef malloc
#undef malloc
#endif
SMB_THREADS_DEF_PTHREAD_IMPLEMENTATION(tf);
/* Test function. */
int test_threads(void)
{
int ret;
void *plock = NULL;
smb_thread_set_functions(&tf);
if ((ret = SMB_THREAD_CREATE_MUTEX("test", plock)) != 0) {
printf("Create lock error: %d\n", ret);
}
if ((ret = SMB_THREAD_LOCK(plock, SMB_THREAD_LOCK)) != 0) {
printf("lock error: %d\n", ret);
}
if ((SMB_THREAD_LOCK(plock, SMB_THREAD_UNLOCK)) != 0) {
printf("unlock error: %d\n", ret);
}
SMB_THREAD_DESTROY_MUTEX(plock);
return 0;
}
#endif
|
