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
|
/*
* $Id$
*
* This file is part of the OpenLink Software Virtuoso Open-Source (VOS)
* project.
*
* Copyright (C) 1998-2012 OpenLink Software
*
* This project is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; only version 2 of the License, dated June 1991.
*
* This program 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
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
typedef struct async_queue_s
{
int aq_ref_count;
dk_mutex_t * aq_mtx;
basket_t aq_queue;
int aq_max_threads;
int aq_n_threads;
int aq_req_no;
dk_hash_t * aq_requests;
int aq_deleted;
user_t * aq_user;
caddr_t aq_qualifier;
} async_queue_t;
typedef struct aq_thread_s
{
client_connection_t *aqt_cli;
du_thread_t * aqt_thread;
async_queue_t * volatile aqt_aq;
struct aq_request_s * volatile aqt_aqr;
} aq_thread_t;
typedef caddr_t (*aq_func_t) (caddr_t args, caddr_t * err_ret);
typedef struct aq_request_s
{
int aqr_req_no;
aq_func_t aqr_func;
caddr_t aqr_args;
du_thread_t * aqr_waiting;
caddr_t volatile aqr_value;
caddr_t aqr_error;
volatile int aqr_state;
async_queue_t * aqr_aq;
} aq_request_t;
/* aqr_state */
#define AQR_QUEUED 2
#define AQR_RUNNING 3
#define AQR_DONE 4
int aq_request (async_queue_t * aq, aq_func_t f, caddr_t arg, lock_trx_t * lt);
caddr_t aq_wait (async_queue_t * aq, int req_no, caddr_t * err, int wait);
caddr_t aq_wait_all (async_queue_t * aq, caddr_t * err_ret);
async_queue_t * aq_allocate (client_connection_t * cli, int n_threads);
void aq_init ();
#define AQ_NO_REQUEST ((caddr_t)3)
|
