1 /*********************************************************************************************************
2 * Software License Agreement (BSD License) *
3 * Author: Sebastien Decugis <sdecugis@freediameter.net> *
4 * *
5 * Copyright (c) 2019, WIDE Project and NICT *
6 * All rights reserved. *
7 * *
8 * Redistribution and use of this software in source and binary forms, with or without modification, are *
9 * permitted provided that the following conditions are met: *
10 * *
11 * * Redistributions of source code must retain the above *
12 * copyright notice, this list of conditions and the *
13 * following disclaimer. *
14 * *
15 * * Redistributions in binary form must reproduce the above *
16 * copyright notice, this list of conditions and the *
17 * following disclaimer in the documentation and/or other *
18 * materials provided with the distribution. *
19 * *
20 * * Neither the name of the WIDE Project or NICT nor the *
21 * names of its contributors may be used to endorse or *
22 * promote products derived from this software without *
23 * specific prior written permission of WIDE Project and *
24 * NICT. *
25 * *
26 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED *
27 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A *
28 * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR *
29 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT *
30 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS *
31 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR *
32 * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF *
33 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. *
34 *********************************************************************************************************/
35
36 #include "fdcore-internal.h"
37
38 /* The global message queues */
39 struct fifo * fd_g_incoming = NULL;
40 struct fifo * fd_g_outgoing = NULL;
41 struct fifo * fd_g_local = NULL;
42
43 /* Initialize the message queues. */
fd_queues_init(void)44 int fd_queues_init(void)
45 {
46 TRACE_ENTRY();
47 CHECK_FCT( fd_fifo_new ( &fd_g_incoming, fd_g_config->cnf_qin_limit ) );
48 CHECK_FCT( fd_fifo_new ( &fd_g_outgoing, fd_g_config->cnf_qout_limit ) );
49 CHECK_FCT( fd_fifo_new ( &fd_g_local, fd_g_config->cnf_qlocal_limit ) );
50 return 0;
51 }
52
53 /* Resize according to values given in configuration file */
fd_queues_init_after_conf(void)54 int fd_queues_init_after_conf(void)
55 {
56 TRACE_ENTRY();
57 CHECK_FCT( fd_fifo_set_max ( fd_g_incoming, fd_g_config->cnf_qin_limit ) );
58 CHECK_FCT( fd_fifo_set_max ( fd_g_outgoing, fd_g_config->cnf_qout_limit ) );
59 CHECK_FCT( fd_fifo_set_max ( fd_g_local, fd_g_config->cnf_qlocal_limit ) );
60 return 0;
61 }
62
63 /* Destroy a queue after emptying it (and dumping the content) */
fd_queues_fini(struct fifo ** queue)64 int fd_queues_fini(struct fifo ** queue)
65 {
66 struct msg * msg;
67 int ret = 0;
68
69 TRACE_ENTRY("%p", queue);
70
71 /* Note : the threads that post into this queue should already been stopped before this !!! */
72
73 CHECK_PARAMS(queue);
74 if (*queue == NULL)
75 return 0; /* the queue was not already initialized */
76
77 /* Empty all contents */
78 while (1) {
79 /* Check if there is a message in the queue */
80 ret = fd_fifo_tryget(*queue, &msg);
81 if (ret == EWOULDBLOCK)
82 break;
83 CHECK_FCT(ret);
84
85 /* We got one! */
86 fd_hook_call(HOOK_MESSAGE_DROPPED, msg, NULL, "Message lost because framework is terminating.", fd_msg_pmdl_get(msg));
87 fd_msg_free(msg);
88 }
89
90 /* Now, delete the empty queue */
91 CHECK_FCT( fd_fifo_del ( queue ) );
92
93 return 0;
94 }
95