Change year of copyright from 2008 to 2009.
[paraslash.git] / recv.c
1 /*
2 * Copyright (C) 2005-2009 Andre Noll <maan@systemlinux.org>
3 *
4 * Licensed under the GPL v2. For licencing details see COPYING.
5 */
6
7 /** \file recv.c the stand-alone audio stream receiver */
8
9 #include <sys/types.h>
10 #include <dirent.h>
11
12 #include "para.h"
13 #include "list.h"
14 #include "sched.h"
15 #include "ggo.h"
16 #include "recv.h"
17 #include "recv.cmdline.h"
18 #include "fd.h"
19 #include "error.h"
20 #include "stdout.h"
21
22 /** the gengetopt args info struct */
23 struct recv_args_info conf;
24
25 /** always log to stderr */
26 INIT_STDERR_LOGGING(conf.loglevel_arg);
27
28 /** init array of error codes used by para_recv */
29 INIT_RECV_ERRLISTS;
30
31 __noreturn static void print_help_and_die(void)
32 {
33 int d = conf.detailed_help_given;
34 const char **p = d? recv_args_info_detailed_help
35 : recv_args_info_help;
36
37 printf_or_die("%s\n\n", RECV_CMDLINE_PARSER_PACKAGE "-"
38 RECV_CMDLINE_PARSER_VERSION);
39 printf_or_die("%s\n\n", recv_args_info_usage);
40 for (; *p; p++)
41 printf_or_die("%s\n", *p);
42 print_receiver_helps(d);
43 exit(0);
44 }
45
46 static void *parse_config(int argc, char *argv[], int *receiver_num)
47 {
48 if (recv_cmdline_parser(argc, argv, &conf))
49 return NULL;
50 HANDLE_VERSION_FLAG("recv", conf);
51 if (conf.help_given || conf.detailed_help_given)
52 print_help_and_die();
53 return check_receiver_arg(conf.receiver_arg, receiver_num);
54 }
55
56 /**
57 * the main function of para_recv
58 *
59 * \param argc number of arguments
60 * \param argv vector of arguments
61 *
62 * para_recv uses the specified receiver to receive an audio stream sent by
63 * para_server. The received data is written to stdout.
64 *
65 * \return \a EXIT_SUCCESS on success, \a EXIT_FAILURE on errors.
66 */
67 int main(int argc, char *argv[])
68 {
69 int ret, r_opened = 0, receiver_num;
70 struct receiver *r = NULL;
71 struct receiver_node rn;
72 struct stdout_task sot;
73 static struct sched s;
74
75 s.default_timeout.tv_sec = 1;
76 s.default_timeout.tv_usec = 0;
77
78 memset(&sot, 0, sizeof(struct stdout_task));
79 memset(&rn, 0, sizeof(struct receiver_node));
80 FOR_EACH_RECEIVER(ret)
81 receivers[ret].init(&receivers[ret]);
82 ret = -E_RECV_SYNTAX;
83 rn.conf = parse_config(argc, argv, &receiver_num);
84 if (!rn.conf) {
85 PARA_EMERG_LOG("parse failed\n");
86 goto out;
87 }
88 r = &receivers[receiver_num];
89 rn.receiver = r;
90 ret = r->open(&rn);
91 if (ret < 0)
92 goto out;
93 r_opened = 1;
94
95 stdout_set_defaults(&sot);
96 sot.buf = rn.buf;
97 sot.loaded = &rn.loaded;
98 sot.input_error = &rn.task.error;
99 register_task(&sot.task);
100
101 rn.task.pre_select = r->pre_select;
102 rn.task.post_select = r->post_select;
103 sprintf(rn.task.status, "receiver node");
104 register_task(&rn.task);
105
106 ret = schedule(&s);
107 out:
108 if (r_opened)
109 r->close(&rn);
110 if (r)
111 r->shutdown();
112 if (ret < 0)
113 PARA_ERROR_LOG("%s\n", para_strerror(-ret));
114 return ret < 0? EXIT_FAILURE : EXIT_SUCCESS;
115 }