Commit | Line | Data |
---|---|---|
460b9539 | 1 | /* |
2 | * This file is part of DisOrder. | |
ea410ba1 | 3 | * Copyright (C) 2005, 2007 Richard Kettlewell |
460b9539 | 4 | * |
e7eb3a27 | 5 | * This program is free software: you can redistribute it and/or modify |
460b9539 | 6 | * it under the terms of the GNU General Public License as published by |
e7eb3a27 | 7 | * the Free Software Foundation, either version 3 of the License, or |
460b9539 | 8 | * (at your option) any later version. |
e7eb3a27 RK |
9 | * |
10 | * This program is distributed in the hope that it will be useful, | |
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | * GNU General Public License for more details. | |
14 | * | |
460b9539 | 15 | * You should have received a copy of the GNU General Public License |
e7eb3a27 | 16 | * along with this program. If not, see <http://www.gnu.org/licenses/>. |
460b9539 | 17 | */ |
ea410ba1 | 18 | /** @file lib/speaker-protocol.c |
19 | * @brief Speaker/server protocol support | |
20 | */ | |
460b9539 | 21 | |
05b75f8d | 22 | #include "common.h" |
460b9539 | 23 | |
24 | #include <sys/socket.h> | |
460b9539 | 25 | #include <errno.h> |
84aa9f93 RK |
26 | #include <unistd.h> |
27 | #include <stddef.h> | |
460b9539 | 28 | |
ea410ba1 | 29 | #include "speaker-protocol.h" |
460b9539 | 30 | #include "log.h" |
31 | ||
fbf86993 | 32 | /** @brief Send a speaker message |
ea410ba1 | 33 | * @param fd File descriptor to send to |
34 | * @param sm Pointer to message | |
ea410ba1 | 35 | */ |
84aa9f93 | 36 | void speaker_send(int fd, const struct speaker_message *sm) { |
460b9539 | 37 | int ret; |
38 | ||
460b9539 | 39 | do { |
84aa9f93 | 40 | ret = write(fd, sm, sizeof *sm); |
460b9539 | 41 | } while(ret < 0 && errno == EINTR); |
42 | if(ret < 0) | |
2e9ba080 | 43 | disorder_fatal(errno, "write"); |
460b9539 | 44 | } |
45 | ||
ea410ba1 | 46 | /** @brief Receive a speaker message |
47 | * @param fd File descriptor to read from | |
48 | * @param sm Where to store received message | |
ea410ba1 | 49 | * @return -ve on @c EAGAIN, 0 at EOF, +ve on success |
ea410ba1 | 50 | */ |
84aa9f93 | 51 | int speaker_recv(int fd, struct speaker_message *sm) { |
460b9539 | 52 | int ret; |
53 | ||
460b9539 | 54 | do { |
84aa9f93 | 55 | ret = read(fd, sm, sizeof *sm); |
460b9539 | 56 | } while(ret < 0 && errno == EINTR); |
57 | if(ret < 0) { | |
2e9ba080 RK |
58 | if(errno != EAGAIN) |
59 | disorder_fatal(errno, "recvmsg"); | |
460b9539 | 60 | return -1; |
61 | } | |
460b9539 | 62 | return ret; |
63 | } | |
64 | ||
65 | /* | |
66 | Local Variables: | |
67 | c-basic-offset:2 | |
68 | comment-column:40 | |
69 | fill-column:79 | |
70 | indent-tabs-mode:nil | |
71 | End: | |
72 | */ |