1 /*
2 Copyright (c) 2012, Broadcom Europe Ltd
3 All rights reserved.
4
5 Redistribution and use in source and binary forms, with or without
6 modification, are permitted provided that the following conditions are met:
7 * Redistributions of source code must retain the above copyright
8 notice, this list of conditions and the following disclaimer.
9 * Redistributions in binary form must reproduce the above copyright
10 notice, this list of conditions and the following disclaimer in the
11 documentation and/or other materials provided with the distribution.
12 * Neither the name of the copyright holder nor the
13 names of its contributors may be used to endorse or promote products
14 derived from this software without specific prior written permission.
15
16 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
17 ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
18 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
19 DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY
20 DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
21 (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
22 LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
23 ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
25 SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 */
27
28 /*
29 The following header is included in order to provide one instance of the symbol vcos_deprecated_code.
30 Any other inclusions of this header (or "vcos_deprecated_code.inc" for assembly language) will cause the linker to warn
31 about multiple definitions of vcos_deprecated_code.
32 The idea is to include this header file for the source files which are deprecated.
33 Therefore the above warnning in a build indicates that the build is using deprecated code!
34 Contact the person named in the accompanying comment for advice - do not remove the inclusion.
35 */
36 #include "vcos_deprecated.h"
37
38 #include "interface/vcos/vcos.h"
39
40 static int init_refcount;
41
vcos_init(void)42 VCOS_STATUS_T vcos_init(void)
43 {
44 VCOS_STATUS_T st = VCOS_SUCCESS;
45
46 vcos_global_lock();
47
48 if (init_refcount++ == 0)
49 st = vcos_platform_init();
50
51 vcos_global_unlock();
52
53 return st;
54 }
55
vcos_deinit(void)56 void vcos_deinit(void)
57 {
58 vcos_global_lock();
59
60 vcos_assert(init_refcount > 0);
61
62 if (init_refcount > 0 && --init_refcount == 0)
63 vcos_platform_deinit();
64
65 vcos_global_unlock();
66 }
67
68 #if defined(__GNUC__) && (__GNUC__ > 2)
69
70 void vcos_ctor(void) __attribute__((constructor, used));
71
vcos_ctor(void)72 void vcos_ctor(void)
73 {
74 vcos_init();
75 }
76
77 void vcos_dtor(void) __attribute__((destructor, used));
78
vcos_dtor(void)79 void vcos_dtor(void)
80 {
81 vcos_deinit();
82 }
83
84 #endif
85