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Diffstat (limited to 'src/messenger/testing_messenger_barrier.c')
-rw-r--r-- | src/messenger/testing_messenger_barrier.c | 172 |
1 files changed, 0 insertions, 172 deletions
diff --git a/src/messenger/testing_messenger_barrier.c b/src/messenger/testing_messenger_barrier.c deleted file mode 100644 index a95ea9ef1..000000000 --- a/src/messenger/testing_messenger_barrier.c +++ /dev/null | |||
@@ -1,172 +0,0 @@ | |||
1 | /* | ||
2 | This file is part of GNUnet. | ||
3 | Copyright (C) 2021 GNUnet e.V. | ||
4 | |||
5 | GNUnet is free software: you can redistribute it and/or modify it | ||
6 | under the terms of the GNU Affero General Public License as published | ||
7 | by the Free Software Foundation, either version 3 of the License, | ||
8 | or (at your option) any later version. | ||
9 | |||
10 | GNUnet is distributed in the hope that it will be useful, but | ||
11 | WITHOUT ANY WARRANTY; without even the implied warranty of | ||
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
13 | Affero General Public License for more details. | ||
14 | |||
15 | You should have received a copy of the GNU Affero General Public License | ||
16 | along with this program. If not, see <http://www.gnu.org/licenses/>. | ||
17 | |||
18 | SPDX-License-Identifier: AGPL3.0-or-later | ||
19 | */ | ||
20 | /** | ||
21 | * @file messenger/testing_messenger_barrier.c | ||
22 | * @author Tobias Frisch | ||
23 | * @brief Pseudo-barriers for simple event handling | ||
24 | */ | ||
25 | |||
26 | #include "testing_messenger_barrier.h" | ||
27 | |||
28 | struct GNUNET_BarrierHandle | ||
29 | { | ||
30 | unsigned int requirement; | ||
31 | GNUNET_BarrierStatusCallback cb; | ||
32 | void *cls; | ||
33 | |||
34 | struct GNUNET_BarrierWaitHandle *head; | ||
35 | struct GNUNET_BarrierWaitHandle *tail; | ||
36 | |||
37 | struct GNUNET_SCHEDULER_Task* task; | ||
38 | }; | ||
39 | |||
40 | struct GNUNET_BarrierHandle* | ||
41 | GNUNET_init_barrier (unsigned int requirement, | ||
42 | GNUNET_BarrierStatusCallback cb, | ||
43 | void *cb_cls) | ||
44 | { | ||
45 | if (0 == requirement) | ||
46 | return NULL; | ||
47 | |||
48 | struct GNUNET_BarrierHandle *barrier = GNUNET_new(struct GNUNET_BarrierHandle); | ||
49 | |||
50 | if (!barrier) | ||
51 | return NULL; | ||
52 | |||
53 | barrier->requirement = requirement; | ||
54 | barrier->cb = cb; | ||
55 | barrier->cls = cb_cls; | ||
56 | barrier->head = NULL; | ||
57 | barrier->tail = NULL; | ||
58 | barrier->task = NULL; | ||
59 | |||
60 | return barrier; | ||
61 | } | ||
62 | |||
63 | static void | ||
64 | exit_status (struct GNUNET_BarrierHandle *barrier, | ||
65 | int status); | ||
66 | |||
67 | static void | ||
68 | cancel_barrier (void *cls) | ||
69 | { | ||
70 | exit_status ((struct GNUNET_BarrierHandle*) cls, GNUNET_SYSERR); | ||
71 | } | ||
72 | |||
73 | static void | ||
74 | complete_barrier (void *cls) | ||
75 | { | ||
76 | exit_status ((struct GNUNET_BarrierHandle*) cls, GNUNET_OK); | ||
77 | } | ||
78 | |||
79 | void | ||
80 | GNUNET_cancel_barrier (struct GNUNET_BarrierHandle *barrier) | ||
81 | { | ||
82 | if ((!barrier) || (barrier->task)) | ||
83 | return; | ||
84 | |||
85 | barrier->task = GNUNET_SCHEDULER_add_now(cancel_barrier, barrier); | ||
86 | } | ||
87 | |||
88 | struct GNUNET_BarrierWaitHandle | ||
89 | { | ||
90 | GNUNET_BarrierWaitStatusCallback cb; | ||
91 | void *cls; | ||
92 | |||
93 | struct GNUNET_BarrierWaitHandle *prev; | ||
94 | struct GNUNET_BarrierWaitHandle *next; | ||
95 | |||
96 | struct GNUNET_BarrierHandle *barrier; | ||
97 | }; | ||
98 | |||
99 | static void | ||
100 | exit_status (struct GNUNET_BarrierHandle *barrier, | ||
101 | int status) | ||
102 | { | ||
103 | struct GNUNET_BarrierWaitHandle *waiting = barrier->head; | ||
104 | while (waiting) | ||
105 | { | ||
106 | struct GNUNET_BarrierWaitHandle *current = waiting; | ||
107 | |||
108 | if (current->cb) | ||
109 | current->cb(current->cls, current, status); | ||
110 | |||
111 | waiting = waiting->next; | ||
112 | |||
113 | GNUNET_CONTAINER_DLL_remove(barrier->head, barrier->tail, current); | ||
114 | GNUNET_free(current); | ||
115 | } | ||
116 | |||
117 | if (barrier->cb) | ||
118 | barrier->cb(barrier->cls, barrier, status); | ||
119 | |||
120 | GNUNET_free(barrier); | ||
121 | } | ||
122 | |||
123 | struct GNUNET_BarrierWaitHandle* | ||
124 | GNUNET_wait_barrier (struct GNUNET_BarrierHandle *barrier, | ||
125 | GNUNET_BarrierWaitStatusCallback cb, | ||
126 | void *cb_cls) | ||
127 | { | ||
128 | if ((!barrier) || (0 == barrier->requirement)) | ||
129 | return NULL; | ||
130 | |||
131 | struct GNUNET_BarrierWaitHandle *waiting = GNUNET_new(struct GNUNET_BarrierWaitHandle); | ||
132 | |||
133 | if (!waiting) | ||
134 | return NULL; | ||
135 | |||
136 | waiting->cb = cb; | ||
137 | waiting->cls = cb_cls; | ||
138 | waiting->prev = NULL; | ||
139 | waiting->next = NULL; | ||
140 | waiting->barrier = barrier; | ||
141 | |||
142 | GNUNET_CONTAINER_DLL_insert_tail(barrier->head, barrier->tail, waiting); | ||
143 | barrier->requirement--; | ||
144 | |||
145 | if ((barrier->requirement == 0) && (!barrier->task)) | ||
146 | barrier->task = GNUNET_SCHEDULER_add_now(complete_barrier, barrier); | ||
147 | |||
148 | return waiting; | ||
149 | } | ||
150 | |||
151 | void | ||
152 | GNUNET_cancel_wait_barrier (struct GNUNET_BarrierWaitHandle *waiting) | ||
153 | { | ||
154 | if (!waiting) | ||
155 | return; | ||
156 | |||
157 | struct GNUNET_BarrierHandle *barrier = waiting->barrier; | ||
158 | |||
159 | if (!barrier) | ||
160 | return; | ||
161 | |||
162 | if ((barrier->requirement == 0) && (barrier->task)) | ||
163 | { | ||
164 | GNUNET_SCHEDULER_cancel(barrier->task); | ||
165 | barrier->task = NULL; | ||
166 | } | ||
167 | |||
168 | barrier->requirement++; | ||
169 | GNUNET_CONTAINER_DLL_remove(barrier->head, barrier->tail, waiting); | ||
170 | |||
171 | GNUNET_free(waiting); | ||
172 | } | ||