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
|
/*-
* Copyright (c) 2010, Mark Heily <mark@heily.com>
* Copyright (c) 2009, Stacey Son <sson@freebsd.org>
* Copyright (c) 2000-2008, Apple Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice unmodified, this list of conditions, and the following
* disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
#include "private.h"
unsigned int PWQ_ACTIVE_CPU = 0;
int DEBUG_WORKQUEUE = 0;
char *WORKQUEUE_DEBUG_IDENT = "WQ";
static int
valid_workq(pthread_workqueue_t workq)
{
if (workq->sig == PTHREAD_WORKQUEUE_SIG)
return (1);
else
return (0);
}
int VISIBLE CONSTRUCTOR
pthread_workqueue_init_np(void)
{
#ifdef NDEBUG
DEBUG_WORKQUEUE = 0;
#else
DEBUG_WORKQUEUE = (getenv("PWQ_DEBUG") == NULL) ? 0 : 1;
# ifndef _WIN32
PWQ_RT_THREADS = (getenv("PWQ_RT_THREADS") == NULL) ? 0 : 1;
PWQ_ACTIVE_CPU = (getenv("PWQ_ACTIVE_CPU") == NULL) ? 0 : atoi(getenv("PWQ_ACTIVE_CPU"));
if (getenv("PWQ_SPIN_USEC") != NULL)
PWQ_SPIN_USEC = atoi(getenv("PWQ_SPIN_USEC"));
if (getenv("PWQ_SPIN_THREADS") != NULL)
PWQ_SPIN_THREADS = atoi(getenv("PWQ_SPIN_THREADS"));
# endif
#endif
if (manager_init() < 0)
return (-1);
dbg_puts("pthread_workqueue library initialized");
return (0);
}
int VISIBLE
pthread_workqueue_create_np(pthread_workqueue_t *workqp,
const pthread_workqueue_attr_t * attr)
{
pthread_workqueue_t workq;
if ((attr != NULL) && ((attr->sig != PTHREAD_WORKQUEUE_ATTR_SIG) ||
(attr->queueprio < 0) || (attr->queueprio >= WORKQ_NUM_PRIOQUEUE)))
return (EINVAL);
if ((workq = calloc(1, sizeof(*workq))) == NULL)
return (ENOMEM);
workq->sig = PTHREAD_WORKQUEUE_SIG;
workq->flags = 0;
STAILQ_INIT(&workq->item_listhead);
pthread_spin_init(&workq->mtx, PTHREAD_PROCESS_PRIVATE);
if (attr == NULL) {
workq->queueprio = WORKQ_DEFAULT_PRIOQUEUE;
workq->overcommit = 0;
} else {
workq->queueprio = attr->queueprio;
workq->overcommit = attr->overcommit;
}
manager_workqueue_create(workq);
dbg_printf("created queue %p", (void *) workq);
*workqp = workq;
return (0);
}
int VISIBLE
pthread_workqueue_additem_np(pthread_workqueue_t workq,
void (*workitem_func)(void *), void * workitem_arg,
pthread_workitem_handle_t * itemhandlep,
unsigned int *gencountp)
{
struct work *witem;
if (valid_workq(workq) == 0)
return (EINVAL);
witem = witem_alloc(workitem_func, workitem_arg);
if (itemhandlep != NULL)
*itemhandlep = (pthread_workitem_handle_t *) witem;
if (gencountp != NULL)
*gencountp = witem->gencount;
manager_workqueue_additem(workq, witem);
dbg_printf("added item %p to queue %p", (void *) witem, (void *) workq);
return (0);
}
int VISIBLE
pthread_workqueue_attr_init_np(pthread_workqueue_attr_t *attr)
{
attr->queueprio = WORKQ_DEFAULT_PRIOQUEUE;
attr->sig = PTHREAD_WORKQUEUE_ATTR_SIG;
attr->overcommit = 0;
return (0);
}
int VISIBLE
pthread_workqueue_attr_destroy_np(pthread_workqueue_attr_t *attr)
{
if (attr->sig == PTHREAD_WORKQUEUE_ATTR_SIG)
return (0);
else
return (EINVAL); /* Not an attribute struct. */
}
int VISIBLE
pthread_workqueue_attr_getovercommit_np(
const pthread_workqueue_attr_t *attr, int *ocommp)
{
if (attr->sig == PTHREAD_WORKQUEUE_ATTR_SIG) {
*ocommp = attr->overcommit;
return (0);
} else
return (EINVAL); /* Not an attribute struct. */
}
int VISIBLE
pthread_workqueue_attr_setovercommit_np(pthread_workqueue_attr_t *attr,
int ocomm)
{
if (attr->sig == PTHREAD_WORKQUEUE_ATTR_SIG) {
attr->overcommit = ocomm;
return (0);
} else
return (EINVAL);
}
int VISIBLE
pthread_workqueue_attr_getqueuepriority_np(
pthread_workqueue_attr_t *attr, int *qpriop)
{
if (attr->sig == PTHREAD_WORKQUEUE_ATTR_SIG) {
*qpriop = attr->queueprio;
return (0);
} else
return (EINVAL);
}
int VISIBLE
pthread_workqueue_attr_setqueuepriority_np(
pthread_workqueue_attr_t *attr, int qprio)
{
if (attr->sig == PTHREAD_WORKQUEUE_ATTR_SIG) {
switch(qprio) {
case WORKQ_HIGH_PRIOQUEUE:
case WORKQ_DEFAULT_PRIOQUEUE:
case WORKQ_LOW_PRIOQUEUE:
attr->queueprio = qprio;
return (0);
default:
return (EINVAL);
}
} else
return (EINVAL);
}
unsigned long VISIBLE
pthread_workqueue_peek_np(const char *key)
{
return manager_peek(key);
}
|
