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
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
|
/* GLIB - Library of useful routines for C programming
* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
*
* gthread.c: nspr thread system implementation
* Copyright 1998 Sebastian Wilhelmi; University of Karlsruhe
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
/*
* MT safe
*/
#include <prpdce.h>
#include <prthread.h>
#include <stdlib.h>
#ifdef G_DISABLE_ASSERT
#define STDERR_ASSERT(expr)
#else /* G_DISABLE_ASSERT */
#define STDERR_ASSERT(expr) G_STMT_START{ \
if (!(expr)) \
g_log (G_LOG_DOMAIN, \
G_LOG_LEVEL_ERROR, \
"file %s: line %d: assertion failed: (%s)", \
__FILE__, \
__LINE__, \
#expr); }G_STMT_END
#endif /* G_DISABLE_ASSERT */
/* NOTE: the functions g_mutex_lock and g_mutex_unlock may not use
functions from gmem.c and gmessages.c; */
static gboolean
g_mutex_trylock_nspr_impl (GMutex * mutex)
{
PRStatus status = PRP_TryLock ((PRLock *) mutex);
if (status == PR_SUCCESS)
{
return TRUE;
}
return FALSE;
}
static void
g_cond_wait_nspr_impl (GCond * cond,
GMutex * entered_mutex)
{
PRStatus status = PRP_NakedWait ((PRCondVar *) cond,
(PRLock *) entered_mutex,
PR_INTERVAL_NO_TIMEOUT);
g_assert (status == PR_SUCCESS);
}
#define G_MICROSEC 1000000
static gboolean
g_cond_timed_wait_nspr_impl (GCond * cond,
GMutex * entered_mutex,
GTimeVal * abs_time)
{
PRStatus status;
PRIntervalTime interval;
GTimeVal current_time;
glong microsecs;
g_return_val_if_fail (cond != NULL, FALSE);
g_return_val_if_fail (entered_mutex != NULL, FALSE);
g_get_current_time (¤t_time);
if (abs_time->tv_sec < current_time.tv_sec ||
(abs_time->tv_sec == current_time.tv_sec &&
abs_time->tv_usec < current_time.tv_usec))
return FALSE;
interval = PR_SecondsToInterval (abs_time->tv_sec - current_time.tv_sec);
microsecs = abs_time->tv_usec - current_time.tv_usec;
if (microsecs < 0)
interval -= PR_MicrosecondsToInterval (-microsecs);
else
interval += PR_MicrosecondsToInterval (microsecs);
status = PRP_NakedWait ((PRCondVar *) cond, (PRLock *) entered_mutex,
interval);
g_assert (status == PR_SUCCESS);
g_get_current_time (¤t_time);
if (abs_time->tv_sec < current_time.tv_sec ||
(abs_time->tv_sec == current_time.tv_sec &&
abs_time->tv_usec < current_time.tv_usec))
return FALSE;
return TRUE;
}
typedef struct _GPrivateNSPRData GPrivateNSPRData;
struct _GPrivateNSPRData
{
gpointer data;
GDestroyNotify destructor;
};
typedef struct _GPrivateNSPR GPrivateNSPR;
struct _GPrivateNSPR
{
PRUintn private_key;
GDestroyNotify destructor;
};
static GPrivateNSPRData *
g_private_nspr_data_constructor (GDestroyNotify destructor, gpointer data)
{
/* we can not use g_new and friends, as they might use private data by
themself */
GPrivateNSPRData *private_key = malloc (sizeof (GPrivateNSPRData));
g_assert (private_key);
private_key->data = data;
private_key->destructor = destructor;
return private_key;
}
static void
g_private_nspr_data_destructor (gpointer data)
{
GPrivateNSPRData *private_key = data;
if (private_key->destructor && private_key->data)
(*private_key->destructor) (private_key->data);
free (private_key);
}
static GPrivate *
g_private_new_nspr_impl (GDestroyNotify destructor)
{
GPrivateNSPR *result = g_new (GPrivateNSPR, 1);
PRStatus status = PR_NewThreadPrivateIndex (&result->private_key,
g_private_nspr_data_destructor);
g_assert (status == PR_SUCCESS);
result->destructor = destructor;
return (GPrivate *) result;
}
/* NOTE: the functions g_private_get and g_private_set may not use
functions from gmem.c and gmessages.c */
static GPrivateNSPRData *
g_private_nspr_data_get (GPrivateNSPR * private_key)
{
GPrivateNSPRData *data;
STDERR_ASSERT (private_key);
data = PR_GetThreadPrivate (private_key->private_key);
if (!data)
{
data = g_private_nspr_data_constructor (private_key->destructor, NULL);
STDERR_ASSERT (PR_SetThreadPrivate (private_key->private_key, data)
== PR_SUCCESS);
}
return data;
}
static void
g_private_set_nspr_impl (GPrivate * private_key, gpointer value)
{
if (!private_key)
return;
g_private_nspr_data_get ((GPrivateNSPR *) private_key)->data = value;
}
static gpointer
g_private_get_nspr_impl (GPrivate * private_key)
{
if (!private_key)
return NULL;
return g_private_nspr_data_get ((GPrivateNSPR *) private_key)->data;
}
static GThreadFunctions g_thread_functions_for_glib_use_default =
{
(GMutex * (*)())PR_NewLock,
(void (*)(GMutex *)) PR_Lock,
g_mutex_trylock_nspr_impl,
(void (*)(GMutex *)) PR_Unlock,
(void (*)(GMutex *)) PR_DestroyLock,
(GCond * (*)())PRP_NewNakedCondVar,
(void (*)(GCond *)) PRP_NakedNotify,
(void (*)(GCond *)) PRP_NakedBroadcast,
g_cond_wait_nspr_impl,
g_cond_timed_wait_nspr_impl,
(void (*)(GCond *)) PRP_DestroyNakedCondVar,
g_private_new_nspr_impl,
g_private_get_nspr_impl,
g_private_set_nspr_impl
};
|
