Obtain afs status items directly from afs.
[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 "string.h"
20 #include "error.h"
21 #include "stdout.h"
22
23 /** the gengetopt args info struct */
24 struct recv_args_info conf;
25
26 static int loglevel;
27 /** Always log to stderr. */
28 INIT_STDERR_LOGGING(loglevel);
29
30 /** init array of error codes used by para_recv */
31 INIT_RECV_ERRLISTS;
32
33 __noreturn static void print_help_and_die(void)
34 {
35 int d = conf.detailed_help_given;
36 const char **p = d? recv_args_info_detailed_help
37 : recv_args_info_help;
38
39 printf_or_die("%s\n\n", RECV_CMDLINE_PARSER_PACKAGE "-"
40 RECV_CMDLINE_PARSER_VERSION);
41 printf_or_die("%s\n\n", recv_args_info_usage);
42 for (; *p; p++)
43 printf_or_die("%s\n", *p);
44 print_receiver_helps(d);
45 exit(0);
46 }
47
48 static void *parse_config(int argc, char *argv[], int *receiver_num)
49 {
50 if (recv_cmdline_parser(argc, argv, &conf))
51 return NULL;
52 HANDLE_VERSION_FLAG("recv", conf);
53 if (conf.help_given || conf.detailed_help_given)
54 print_help_and_die();
55 return check_receiver_arg(conf.receiver_arg, receiver_num);
56 }
57
58 /**
59 * the main function of para_recv
60 *
61 * \param argc number of arguments
62 * \param argv vector of arguments
63 *
64 * para_recv uses the specified receiver to receive an audio stream sent by
65 * para_server. The received data is written to stdout.
66 *
67 * \return \a EXIT_SUCCESS on success, \a EXIT_FAILURE on errors.
68 */
69 int main(int argc, char *argv[])
70 {
71 int ret, r_opened = 0, receiver_num;
72 struct receiver *r = NULL;
73 struct receiver_node rn;
74 struct stdout_task sot;
75 static struct sched s;
76
77 s.default_timeout.tv_sec = 1;
78 s.default_timeout.tv_usec = 0;
79
80 memset(&sot, 0, sizeof(struct stdout_task));
81 memset(&rn, 0, sizeof(struct receiver_node));
82 recv_init();
83 ret = -E_RECV_SYNTAX;
84 rn.conf = parse_config(argc, argv, &receiver_num);
85 if (!rn.conf) {
86 PARA_EMERG_LOG("parse failed\n");
87 goto out;
88 }
89 loglevel = get_loglevel_by_name(conf.loglevel_arg);
90 r = &receivers[receiver_num];
91 rn.receiver = r;
92 ret = r->open(&rn);
93 if (ret < 0)
94 goto out;
95 r_opened = 1;
96
97 stdout_set_defaults(&sot);
98 sot.bufp = &rn.buf;
99 sot.loaded = &rn.loaded;
100 sot.input_error = &rn.task.error;
101 register_task(&sot.task);
102
103 rn.task.pre_select = r->pre_select;
104 rn.task.post_select = r->post_select;
105 sprintf(rn.task.status, "receiver node");
106 register_task(&rn.task);
107
108 ret = schedule(&s);
109 out:
110 if (r_opened)
111 r->close(&rn);
112 if (r)
113 r->shutdown();
114 if (ret < 0)
115 PARA_ERROR_LOG("%s\n", para_strerror(-ret));
116 return ret < 0? EXIT_FAILURE : EXIT_SUCCESS;
117 }