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Diffstat (limited to 'src/service/messenger/gnunet-service-messenger_operation_store.h')
-rw-r--r-- | src/service/messenger/gnunet-service-messenger_operation_store.h | 130 |
1 files changed, 130 insertions, 0 deletions
diff --git a/src/service/messenger/gnunet-service-messenger_operation_store.h b/src/service/messenger/gnunet-service-messenger_operation_store.h new file mode 100644 index 000000000..16531758c --- /dev/null +++ b/src/service/messenger/gnunet-service-messenger_operation_store.h | |||
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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 | * @author Tobias Frisch | ||
22 | * @file src/messenger/gnunet-service-messenger_operation_store.h | ||
23 | * @brief GNUnet MESSENGER service | ||
24 | */ | ||
25 | |||
26 | #ifndef GNUNET_SERVICE_MESSENGER_OPERATION_STORE_H | ||
27 | #define GNUNET_SERVICE_MESSENGER_OPERATION_STORE_H | ||
28 | |||
29 | #include "platform.h" | ||
30 | #include "gnunet_util_lib.h" | ||
31 | #include "gnunet_time_lib.h" | ||
32 | |||
33 | struct GNUNET_MESSENGER_SrvRoom; | ||
34 | |||
35 | struct GNUNET_MESSENGER_OperationStore | ||
36 | { | ||
37 | struct GNUNET_MESSENGER_SrvRoom *room; | ||
38 | |||
39 | struct GNUNET_CONTAINER_MultiHashMap *operations; | ||
40 | }; | ||
41 | |||
42 | /** | ||
43 | * Initializes an operation <i>store</i> as fully empty with a given <i>room</i>. | ||
44 | * | ||
45 | * @param[out] store Operation store | ||
46 | * @param[in,out] room Room | ||
47 | */ | ||
48 | void | ||
49 | init_operation_store (struct GNUNET_MESSENGER_OperationStore *store, | ||
50 | struct GNUNET_MESSENGER_SrvRoom *room); | ||
51 | |||
52 | /** | ||
53 | * Clears an operation <i>store</i>, stops all operations and deallocates its memory. | ||
54 | * | ||
55 | * @param[in,out] store Operation store | ||
56 | */ | ||
57 | void | ||
58 | clear_operation_store (struct GNUNET_MESSENGER_OperationStore *store); | ||
59 | |||
60 | /** | ||
61 | * Loads operations from a <i>directory</i> into an operation <i>store</i>. | ||
62 | * | ||
63 | * @param[out] store Operation store | ||
64 | * @param[in] directory Path to a directory | ||
65 | */ | ||
66 | void | ||
67 | load_operation_store (struct GNUNET_MESSENGER_OperationStore *store, | ||
68 | const char *directory); | ||
69 | |||
70 | /** | ||
71 | * Saves operations from an operation <i>store</i> into a <i>directory</i>. | ||
72 | * | ||
73 | * @param[in] store Operation store | ||
74 | * @param[in] directory Path to a directory | ||
75 | */ | ||
76 | void | ||
77 | save_operation_store (const struct GNUNET_MESSENGER_OperationStore *store, | ||
78 | const char *directory); | ||
79 | |||
80 | /** | ||
81 | * Returns the type of the active operation under a given <i>hash</i> in | ||
82 | * a specific operation <i>store</i>. If there is no active operation under | ||
83 | * the given <i>hash</i>, #GNUNET_MESSENGER_OP_UNKNOWN gets returned instead. | ||
84 | * | ||
85 | * @param[in] store Operation store | ||
86 | * @param[in] hash Hash of message | ||
87 | * @return Type of operation or #GNUNET_MESSENGER_OP_UNKNOWN | ||
88 | */ | ||
89 | enum GNUNET_MESSENGER_OperationType | ||
90 | get_store_operation_type (const struct GNUNET_MESSENGER_OperationStore *store, | ||
91 | const struct GNUNET_HashCode *hash); | ||
92 | |||
93 | /** | ||
94 | * Tries to use an operation under a given <i>hash</i> in a specific | ||
95 | * operation <i>store</i>. The operation will use the selected <i>type</i> | ||
96 | * if successful. The operation will be delayed by a given <i>delay</i>. | ||
97 | * | ||
98 | * If the selected type is #GNUNET_MESSENGER_OP_DELETE any active operation | ||
99 | * under the given hash will be stopped and replaced. | ||
100 | * | ||
101 | * If the new operation could be started successfully the method returns | ||
102 | * #GNUNET_OK, otherwise #GNUNET_SYSERR. | ||
103 | * | ||
104 | * @param[in,out] store Operation store | ||
105 | * @param[in] hash Hash of message | ||
106 | * @param[in] type Operation type | ||
107 | * @param[in] delay Delay | ||
108 | * @return #GNUNET_OK on success, otherwise #GNUNET_SYSERR | ||
109 | */ | ||
110 | int | ||
111 | use_store_operation (struct GNUNET_MESSENGER_OperationStore *store, | ||
112 | const struct GNUNET_HashCode *hash, | ||
113 | enum GNUNET_MESSENGER_OperationType type, | ||
114 | struct GNUNET_TIME_Relative delay); | ||
115 | |||
116 | /** | ||
117 | * Stops any active operation under a given <i>hash</i> in a specific | ||
118 | * operation <i>store</i>. | ||
119 | * | ||
120 | * Beware that calling this method will also implicitly free the memory | ||
121 | * of any active operation under the given hash! | ||
122 | * | ||
123 | * @param[in,out] store Operation store | ||
124 | * @param[in] hash Hash of message | ||
125 | */ | ||
126 | void | ||
127 | cancel_store_operation (struct GNUNET_MESSENGER_OperationStore *store, | ||
128 | const struct GNUNET_HashCode *hash); | ||
129 | |||
130 | #endif //GNUNET_SERVICE_MESSENGER_OPERATION_STORE_H | ||