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
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
|
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/*
* The contents of this file are subject to the Netscape Public License
* Version 1.1 (the "NPL"); you may not use this file except in
* compliance with the NPL. You may obtain a copy of the NPL at
* http://www.mozilla.org/NPL/
*
* Software distributed under the NPL is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
* for the specific language governing rights and limitations under the
* NPL.
*
* The Initial Developer of this code under the NPL is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All Rights
* Reserved.
*/
#include "primpl.h"
#include <process.h> /* for _beginthreadex() */
extern void _PR_Win32InitTimeZone(void); /* defined in ntmisc.c */
/* --- globals ------------------------------------------------ */
#ifdef _PR_USE_STATIC_TLS
__declspec(thread) struct PRThread *_pr_thread_last_run;
__declspec(thread) struct PRThread *_pr_currentThread;
__declspec(thread) struct _PRCPU *_pr_currentCPU;
#else
DWORD _pr_currentThreadIndex;
DWORD _pr_lastThreadIndex;
DWORD _pr_currentCPUIndex;
#endif
int _pr_intsOff = 0;
_PRInterruptTable _pr_interruptTable[] = { { 0 } };
void
_PR_MD_EARLY_INIT()
{
_PR_Win32InitTimeZone();
#ifndef _PR_USE_STATIC_TLS
_pr_currentThreadIndex = TlsAlloc();
_pr_lastThreadIndex = TlsAlloc();
_pr_currentCPUIndex = TlsAlloc();
#endif
}
void _PR_MD_CLEANUP_BEFORE_EXIT(void)
{
WSACleanup();
#ifndef _PR_USE_STATIC_TLS
TlsFree(_pr_currentThreadIndex);
TlsFree(_pr_lastThreadIndex);
TlsFree(_pr_currentCPUIndex);
#endif
}
PRStatus
_PR_MD_INIT_THREAD(PRThread *thread)
{
if (thread->flags & (_PR_PRIMORDIAL | _PR_ATTACHED)) {
/*
** Warning:
** --------
** NSPR requires a real handle to every thread.
** GetCurrentThread() returns a pseudo-handle which
** is not suitable for some thread operations (e.g.,
** suspending). Therefore, get a real handle from
** the pseudo handle via DuplicateHandle(...)
*/
DuplicateHandle(
GetCurrentProcess(), /* Process of source handle */
GetCurrentThread(), /* Pseudo Handle to dup */
GetCurrentProcess(), /* Process of handle */
&(thread->md.handle), /* resulting handle */
0L, /* access flags */
FALSE, /* Inheritable */
DUPLICATE_SAME_ACCESS); /* Options */
}
/* Create the blocking IO semaphore */
thread->md.blocked_sema = CreateSemaphore(NULL, 0, 1, NULL);
if (thread->md.blocked_sema == NULL)
return PR_FAILURE;
else
return PR_SUCCESS;
}
PRStatus
_PR_MD_CREATE_THREAD(PRThread *thread,
void (*start)(void *),
PRThreadPriority priority,
PRThreadScope scope,
PRThreadState state,
PRUint32 stackSize)
{
thread->md.handle = (HANDLE) _beginthreadex(
NULL,
thread->stack->stackSize,
#if defined(__MINGW32__)
(void *)start,
#else
(unsigned (__stdcall *)(void *))start,
#endif
(void *)thread,
CREATE_SUSPENDED,
&(thread->id));
if(!thread->md.handle) {
return PR_FAILURE;
}
thread->md.id = thread->id;
_PR_MD_SET_PRIORITY(&(thread->md), priority);
/* Activate the thread */
if ( ResumeThread( thread->md.handle ) != -1)
return PR_SUCCESS;
return PR_FAILURE;
}
void
_PR_MD_YIELD(void)
{
/* Can NT really yield at all? */
Sleep(0);
}
void
_PR_MD_SET_PRIORITY(_MDThread *thread, PRThreadPriority newPri)
{
int nativePri;
BOOL rv;
if (newPri < PR_PRIORITY_FIRST) {
newPri = PR_PRIORITY_FIRST;
} else if (newPri > PR_PRIORITY_LAST) {
newPri = PR_PRIORITY_LAST;
}
switch (newPri) {
case PR_PRIORITY_LOW:
nativePri = THREAD_PRIORITY_BELOW_NORMAL;
break;
case PR_PRIORITY_NORMAL:
nativePri = THREAD_PRIORITY_NORMAL;
break;
case PR_PRIORITY_HIGH:
nativePri = THREAD_PRIORITY_ABOVE_NORMAL;
break;
case PR_PRIORITY_URGENT:
nativePri = THREAD_PRIORITY_HIGHEST;
}
rv = SetThreadPriority(thread->handle, nativePri);
PR_ASSERT(rv);
if (!rv) {
PR_LOG(_pr_thread_lm, PR_LOG_MIN,
("PR_SetThreadPriority: can't set thread priority\n"));
}
return;
}
void
_PR_MD_CLEAN_THREAD(PRThread *thread)
{
BOOL rv;
if (thread->md.blocked_sema) {
rv = CloseHandle(thread->md.blocked_sema);
PR_ASSERT(rv);
thread->md.blocked_sema = 0;
}
if (thread->md.handle) {
rv = CloseHandle(thread->md.handle);
PR_ASSERT(rv);
thread->md.handle = 0;
}
}
void
_PR_MD_EXIT_THREAD(PRThread *thread)
{
_PR_MD_CLEAN_THREAD(thread);
_PR_MD_SET_CURRENT_THREAD(NULL);
}
void
_PR_MD_EXIT(PRIntn status)
{
_exit(status);
}
PRInt32 _PR_MD_SETTHREADAFFINITYMASK(PRThread *thread, PRUint32 mask )
{
int rv;
rv = SetThreadAffinityMask(thread->md.handle, mask);
return rv?0:-1;
}
PRInt32 _PR_MD_GETTHREADAFFINITYMASK(PRThread *thread, PRUint32 *mask)
{
PRInt32 rv, system_mask;
rv = GetProcessAffinityMask(GetCurrentProcess(), mask, &system_mask);
return rv?0:-1;
}
void
_PR_MD_SUSPEND_CPU(_PRCPU *cpu)
{
_PR_MD_SUSPEND_THREAD(cpu->thread);
}
void
_PR_MD_RESUME_CPU(_PRCPU *cpu)
{
_PR_MD_RESUME_THREAD(cpu->thread);
}
void
_PR_MD_SUSPEND_THREAD(PRThread *thread)
{
if (_PR_IS_NATIVE_THREAD(thread)) {
DWORD previousSuspendCount;
/* XXXMB - SuspendThread() is not a blocking call; how do we
* know when the thread is *REALLY* suspended?
*/
previousSuspendCount = SuspendThread(thread->md.handle);
PR_ASSERT(previousSuspendCount == 0);
}
}
void
_PR_MD_RESUME_THREAD(PRThread *thread)
{
if (_PR_IS_NATIVE_THREAD(thread)) {
DWORD previousSuspendCount;
previousSuspendCount = ResumeThread(thread->md.handle);
PR_ASSERT(previousSuspendCount == 1);
}
}
PRThread*
_MD_CURRENT_THREAD(void)
{
PRThread *thread;
thread = _MD_GET_ATTACHED_THREAD();
if (NULL == thread) {
thread = _PRI_AttachThread(
PR_USER_THREAD, PR_PRIORITY_NORMAL, NULL, 0);
}
PR_ASSERT(thread != NULL);
return thread;
}
|
