libustcomm/ustcomm.h

   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
  18 #ifndef USTCOMM_H
  19 #define USTCOMM_H
  20
  21 #include <sys/types.h>
  22 #include <sys/un.h>
  23
  24 #include "kcompat.h"
  25
  26 struct ustcomm_connection {
  27         struct list_head list;
  28         int fd;
  29 };
  30
  31 /* ustcomm_server must be shallow-copyable */
  32 struct ustcomm_server {
  33         /* the "server" socket for serving the external requests */
  34         int listen_fd;
  35         char *socketpath;
  36
  37         struct list_head connections;
  38 };
  39
  40 struct ustcomm_ustd {
  41         struct ustcomm_server server;
  42 };
  43
  44 struct ustcomm_app {
  45         struct ustcomm_server server;
  46 };
  47
  48 /* ustcomm_source must be shallow-copyable */
  49 struct ustcomm_source {
  50         int fd;
  51         void *priv;
  52 };
  53
  54 char *strdup_malloc(const char *s);
  55
  56 //int send_message_pid(pid_t pid, const char *msg, char **reply);
  57 int ustcomm_request_consumer(pid_t pid, const char *channel);
  58
  59 int ustcomm_ustd_recv_message(struct ustcomm_ustd *ustd, char **msg, struct ustcomm_source *src, int timeout);
  60 int ustcomm_app_recv_message(struct ustcomm_app *app, char **msg, struct ustcomm_source *src, int timeout);
  61
  62 int ustcomm_init_app(pid_t pid, struct ustcomm_app *handle);
  63
  64 int ustcomm_init_ustd(struct ustcomm_ustd *handle);
  65
  66 int ustcomm_connect_app(pid_t pid, struct ustcomm_connection *conn);
  67 int ustcomm_send_request(struct ustcomm_connection *conn, char *req, char **reply);
  68 int ustcomm_send_reply(struct ustcomm_server *server, char *msg, struct ustcomm_source *src);
  69
  70 int nth_token_is(char *str, char *token, int tok_no);
  71
  72 char *nth_token(char *str, int tok_no);
  73
  74 #endif /* USTCOMM_H */