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74971473 JG |
1 | /* |
2 | * This file is part of the PCEPlib, a PCEP protocol library. | |
3 | * | |
4 | * Copyright (C) 2020 Volta Networks https://voltanet.io/ | |
5 | * | |
6 | * This library is free software; you can redistribute it and/or | |
7 | * modify it under the terms of the GNU Lesser General Public | |
8 | * License as published by the Free Software Foundation; either | |
9 | * version 2 of the License, or (at your option) any later version. | |
10 | * | |
11 | * This library is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 | * Lesser General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License | |
17 | * along with this program. If not, see <https://www.gnu.org/licenses/>. | |
18 | * | |
19 | * Author : Brady Johnson <brady@voltanet.io> | |
20 | * | |
21 | */ | |
22 | ||
23 | ||
24 | /* | |
25 | * Internal Session Logic declarations, not intended to be in the public API. | |
26 | */ | |
27 | ||
28 | #ifndef SRC_PCEPSESSIONLOGICINTERNALS_H_ | |
29 | #define SRC_PCEPSESSIONLOGICINTERNALS_H_ | |
30 | ||
31 | ||
32 | #include <pthread.h> | |
33 | #include <stdbool.h> | |
34 | ||
35 | #include "pcep_msg_tools.h" | |
36 | ||
37 | #include "pcep_utils_double_linked_list.h" | |
38 | #include "pcep_utils_ordered_list.h" | |
39 | #include "pcep_utils_queue.h" | |
40 | ||
41 | ||
42 | typedef struct pcep_session_logic_handle_ { | |
43 | pthread_t session_logic_thread; | |
44 | pthread_mutex_t session_logic_mutex; | |
45 | pthread_cond_t session_logic_cond_var; | |
46 | bool session_logic_condition; | |
47 | bool active; | |
48 | ||
49 | ordered_list_handle *session_list; | |
50 | pthread_mutex_t session_list_mutex; | |
51 | /* Internal timers and socket events */ | |
52 | queue_handle *session_event_queue; | |
53 | ||
54 | } pcep_session_logic_handle; | |
55 | ||
56 | ||
57 | /* Used internally for Session events: message received, timer expired, | |
58 | * or socket closed */ | |
59 | typedef struct pcep_session_event_ { | |
60 | pcep_session *session; | |
61 | int expired_timer_id; | |
62 | double_linked_list *received_msg_list; | |
63 | bool socket_closed; | |
64 | ||
65 | } pcep_session_event; | |
66 | ||
67 | /* Event Counters counter-id definitions */ | |
68 | typedef enum pcep_session_counters_event_counter_ids { | |
69 | PCEP_EVENT_COUNTER_ID_PCC_CONNECT = 0, | |
70 | PCEP_EVENT_COUNTER_ID_PCE_CONNECT = 1, | |
71 | PCEP_EVENT_COUNTER_ID_PCC_DISCONNECT = 2, | |
72 | PCEP_EVENT_COUNTER_ID_PCE_DISCONNECT = 3, | |
73 | PCEP_EVENT_COUNTER_ID_TIMER_KEEPALIVE = 4, | |
74 | PCEP_EVENT_COUNTER_ID_TIMER_DEADTIMER = 5, | |
75 | PCEP_EVENT_COUNTER_ID_TIMER_OPENKEEPWAIT = 6, | |
76 | PCEP_EVENT_COUNTER_ID_TIMER_OPENKEEPALIVE = 7 | |
77 | ||
78 | } pcep_session_counters_event_counter_ids; | |
79 | ||
80 | /* functions implemented in pcep_session_logic_loop.c */ | |
81 | void *session_logic_loop(void *data); | |
82 | int session_logic_msg_ready_handler(void *data, int socket_fd); | |
83 | void session_logic_message_sent_handler(void *data, int socket_fd); | |
84 | void session_logic_conn_except_notifier(void *data, int socket_fd); | |
85 | void session_logic_timer_expire_handler(void *data, int timer_id); | |
86 | ||
87 | void handle_timer_event(pcep_session_event *event); | |
88 | void handle_socket_comm_event(pcep_session_event *event); | |
89 | void session_send_message(pcep_session *session, struct pcep_message *message); | |
90 | ||
91 | /* defined in pcep_session_logic_states.c */ | |
92 | void send_pcep_error(pcep_session *session, enum pcep_error_type error_type, | |
93 | enum pcep_error_value error_value); | |
94 | void enqueue_event(pcep_session *session, pcep_event_type event_type, | |
95 | struct pcep_message *message); | |
96 | void increment_unknown_message(pcep_session *session); | |
97 | ||
98 | /* defined in pcep_session_logic_counters.c */ | |
99 | void create_session_counters(pcep_session *session); | |
100 | void increment_event_counters( | |
101 | pcep_session *session, | |
102 | pcep_session_counters_event_counter_ids counter_id); | |
103 | void increment_message_rx_counters(pcep_session *session, | |
104 | struct pcep_message *message); | |
105 | ||
106 | /* defined in pcep_session_logic.c, also used in pcep_session_logic_states.c */ | |
107 | struct pcep_message *create_pcep_open(pcep_session *session); | |
108 | ||
109 | #endif /* SRC_PCEPSESSIONLOGICINTERNALS_H_ */ |