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c39c72ee PMF |
1 | /* Copyright (C) 2009 Pierre-Marc Fournier |
2 | * | |
3 | * This library is free software; you can redistribute it and/or | |
4 | * modify it under the terms of the GNU Lesser General Public | |
5 | * License as published by the Free Software Foundation; either | |
6 | * version 2.1 of the License, or (at your option) any later version. | |
7 | * | |
8 | * This library is distributed in the hope that it will be useful, | |
9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
11 | * Lesser General Public License for more details. | |
12 | * | |
13 | * You should have received a copy of the GNU Lesser General Public | |
14 | * License along with this library; if not, write to the Free Software | |
15 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | |
16 | */ | |
17 | ||
f9e5ce61 PMF |
18 | #ifndef USTCOMM_H |
19 | #define USTCOMM_H | |
20 | ||
21 | #include <sys/types.h> | |
b02e31e5 | 22 | #include <sys/un.h> |
22d9080d | 23 | #include <urcu/list.h> |
f9e5ce61 | 24 | |
17bb07b4 | 25 | #include <ust/kcompat/kcompat.h> |
0e4b45ac | 26 | #include "multipoll.h" |
aca1ad90 | 27 | |
397d8454 | 28 | #define SOCK_DIR "/tmp/ust-app-socks" |
ab33e65c PP |
29 | #define UST_SIGNAL SIGIO |
30 | ||
aca1ad90 PMF |
31 | struct ustcomm_connection { |
32 | struct list_head list; | |
33 | int fd; | |
5932431b PMF |
34 | /* Data that has not yet been consumed: */ |
35 | char *recv_buf; | |
36 | int recv_buf_size; | |
37 | int recv_buf_alloc; | |
aca1ad90 PMF |
38 | }; |
39 | ||
3a7b90de | 40 | /* ustcomm_server must be shallow-copyable */ |
811e4b93 | 41 | struct ustcomm_server { |
b0540e11 | 42 | /* the "server" socket for serving the external requests */ |
aca1ad90 | 43 | int listen_fd; |
d0b5f2b9 | 44 | char *socketpath; |
aca1ad90 PMF |
45 | |
46 | struct list_head connections; | |
d0b5f2b9 PMF |
47 | }; |
48 | ||
49 | struct ustcomm_ustd { | |
811e4b93 PMF |
50 | struct ustcomm_server server; |
51 | }; | |
aca1ad90 | 52 | |
811e4b93 PMF |
53 | struct ustcomm_app { |
54 | struct ustcomm_server server; | |
d0b5f2b9 PMF |
55 | }; |
56 | ||
3a7b90de | 57 | /* ustcomm_source must be shallow-copyable */ |
b02e31e5 | 58 | struct ustcomm_source { |
811e4b93 PMF |
59 | int fd; |
60 | void *priv; | |
b02e31e5 PMF |
61 | }; |
62 | ||
0e4b45ac PMF |
63 | struct ustcomm_multipoll_conn_info { |
64 | struct ustcomm_connection *conn; | |
65 | int (*cb)(char *msg, struct ustcomm_source *src); | |
66 | }; | |
67 | ||
3bb56863 | 68 | //int send_message_pid(pid_t pid, const char *msg, char **reply); |
08230db7 | 69 | extern int ustcomm_request_consumer(pid_t pid, const char *channel); |
d0b5f2b9 | 70 | |
08230db7 PMF |
71 | extern int ustcomm_ustd_recv_message(struct ustcomm_ustd *ustd, char **msg, struct ustcomm_source *src, int timeout); |
72 | extern int ustcomm_app_recv_message(struct ustcomm_app *app, char **msg, struct ustcomm_source *src, int timeout); | |
3847c3ba | 73 | |
08230db7 | 74 | extern int ustcomm_init_app(pid_t pid, struct ustcomm_app *handle); |
2a79ceeb | 75 | extern void ustcomm_fini_app(struct ustcomm_app *handle, int keep_socket_file); |
f3b9955d | 76 | extern void ustcomm_fini_ustd(struct ustcomm_ustd *handle); |
d0b5f2b9 | 77 | |
c97d4437 | 78 | extern int ustcomm_init_ustd(struct ustcomm_ustd *handle, const char *sock_path); |
f9e5ce61 | 79 | |
08230db7 | 80 | extern int ustcomm_connect_app(pid_t pid, struct ustcomm_connection *conn); |
2a79ceeb | 81 | extern int ustcomm_close_app(struct ustcomm_connection *conn); |
08230db7 PMF |
82 | extern int ustcomm_connect_path(const char *path, struct ustcomm_connection *conn, pid_t signalpid); |
83 | extern int ustcomm_send_request(struct ustcomm_connection *conn, const char *req, char **reply); | |
84 | extern int ustcomm_send_reply(struct ustcomm_server *server, char *msg, struct ustcomm_source *src); | |
85 | extern int ustcomm_disconnect(struct ustcomm_connection *conn); | |
99b72dc0 | 86 | extern int ustcomm_close_all_connections(struct ustcomm_server *server); |
7a9b5b69 | 87 | extern void ustcomm_mp_add_app_clients(struct mpentries *ent, struct ustcomm_app *app, int (*cb)(char *recvbuf, struct ustcomm_source *src)); |
3bb56863 | 88 | |
7e92827d | 89 | extern int nth_token_is(const char *str, const char *token, int tok_no); |
b02e31e5 | 90 | |
7e92827d | 91 | extern char *nth_token(const char *str, int tok_no); |
b02e31e5 | 92 | |
08230db7 | 93 | extern int pid_is_online(pid_t); |
ab33e65c | 94 | |
f9e5ce61 | 95 | #endif /* USTCOMM_H */ |