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
106
107
108
109
110
111
112
113
114
115
116
117
118
119
|
/*
* Copyright © 2007 Chris Wilson
* Copyright © 2009,2010 Red Hat, Inc.
* Copyright © 2011 Google, Inc.
*
* This is part of HarfBuzz, a text shaping library.
*
* Permission is hereby granted, without written agreement and without
* license or royalty fees, to use, copy, modify, and distribute this
* software and its documentation for any purpose, provided that the
* above copyright notice and the following two paragraphs appear in
* all copies of this software.
*
* IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
* DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
* ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
* IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
* DAMAGE.
*
* THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
* BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
* ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
* PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
*
* Contributor(s):
* Chris Wilson <chris@chris-wilson.co.uk>
* Red Hat Author(s): Behdad Esfahbod
* Google Author(s): Behdad Esfahbod
*/
#ifndef HB_MUTEX_PRIVATE_HH
#define HB_MUTEX_PRIVATE_HH
#include "hb-private.hh"
/* mutex */
/* We need external help for these */
#if 0
#elif !defined(HB_NO_MT) && defined(_MSC_VER) || defined(__MINGW32__)
#include <windows.h>
typedef CRITICAL_SECTION hb_mutex_impl_t;
#define HB_MUTEX_IMPL_INIT { NULL, 0, 0, NULL, NULL, 0 }
#define hb_mutex_impl_init(M) InitializeCriticalSection (M)
#define hb_mutex_impl_lock(M) EnterCriticalSection (M)
#define hb_mutex_impl_unlock(M) LeaveCriticalSection (M)
#define hb_mutex_impl_free(M) DeleteCriticalSection (M)
#elif !defined(HB_NO_MT) && defined(__APPLE__)
#include <pthread.h>
typedef pthread_mutex_t hb_mutex_impl_t;
#define HB_MUTEX_IMPL_INIT PTHREAD_MUTEX_INITIALIZER
#define hb_mutex_impl_init(M) pthread_mutex_init (M, NULL)
#define hb_mutex_impl_lock(M) pthread_mutex_lock (M)
#define hb_mutex_impl_unlock(M) pthread_mutex_unlock (M)
#define hb_mutex_impl_free(M) pthread_mutex_destroy (M)
#elif !defined(HB_NO_MT) && defined(HAVE_GLIB)
#include <glib.h>
typedef GStaticMutex hb_mutex_impl_t;
#define HB_MUTEX_IMPL_INIT G_STATIC_MUTEX_INIT
#define hb_mutex_impl_init(M) g_static_mutex_init (M)
#define hb_mutex_impl_lock(M) g_static_mutex_lock (M)
#define hb_mutex_impl_unlock(M) g_static_mutex_unlock (M)
#define hb_mutex_impl_free(M) g_static_mutex_free (M)
#else
#define HB_MUTEX_IMPL_NIL 1
typedef volatile int hb_mutex_impl_t;
#define HB_MUTEX_IMPL_INIT 0
#define hb_mutex_impl_init(M) ((void) (*(M) = 0))
#define hb_mutex_impl_lock(M) ((void) (*(M) = 1))
#define hb_mutex_impl_unlock(M) ((void) (*(M) = 0))
#define hb_mutex_impl_free(M) ((void) (*(M) = 2))
#endif
struct hb_mutex_t
{
hb_mutex_impl_t m;
inline void init (void) { hb_mutex_impl_init (&m); }
inline void lock (void) { hb_mutex_impl_lock (&m); }
inline void unlock (void) { hb_mutex_impl_unlock (&m); }
inline void free (void) { hb_mutex_impl_free (&m); }
};
#define HB_MUTEX_INIT {HB_MUTEX_IMPL_INIT}
#define hb_mutex_init(M) (M)->init ()
#define hb_mutex_lock(M) (M)->lock ()
#define hb_mutex_unlock(M) (M)->unlock ()
#define hb_mutex_free(M) (M)->free ()
struct hb_static_mutex_t : hb_mutex_t
{
hb_static_mutex_t (void) { this->init (); }
~hb_static_mutex_t (void) { this->free (); }
private:
NO_COPY (hb_static_mutex_t);
};
#endif /* HB_MUTEX_PRIVATE_HH */
|
