Merge branch 't/recv_fix'
[paraslash.git] / recv.c
1 /*
2 * Copyright (C) 2005-2014 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 <regex.h>
10 #include <sys/types.h>
11
12 #include "para.h"
13 #include "list.h"
14 #include "sched.h"
15 #include "ggo.h"
16 #include "buffer_tree.h"
17 #include "recv.h"
18 #include "recv.cmdline.h"
19 #include "fd.h"
20 #include "string.h"
21 #include "error.h"
22 #include "stdout.h"
23 #include "version.h"
24
25 extern void afh_recv_init(struct receiver *r);
26 #undef AFH_RECEIVER
27 #define AFH_RECEIVER {.name = "afh", .init = afh_recv_init},
28 DEFINE_RECEIVER_ARRAY;
29
30 /** The gengetopt args info struct. */
31 static struct recv_args_info conf;
32
33 static int loglevel;
34 /** Always log to stderr. */
35 INIT_STDERR_LOGGING(loglevel);
36
37 /** init array of error codes used by para_recv */
38 INIT_RECV_ERRLISTS;
39
40 __noreturn static void print_help_and_die(void)
41 {
42 struct ggo_help h = DEFINE_GGO_HELP(recv);
43 bool d = conf.detailed_help_given;
44
45 ggo_print_help(&h, d? GPH_STANDARD_FLAGS_DETAILED : GPH_STANDARD_FLAGS);
46 print_receiver_helps(d? GPH_MODULE_FLAGS_DETAILED : GPH_MODULE_FLAGS);
47 exit(0);
48 }
49
50 /**
51 * The main function of para_recv.
52 *
53 * \param argc number of arguments
54 * \param argv vector of arguments
55 *
56 * para_recv uses the specified receiver to receive an audio stream sent by
57 * para_server. The received data is written to stdout.
58 *
59 * \return \a EXIT_SUCCESS on success, \a EXIT_FAILURE on errors.
60 */
61 int main(int argc, char *argv[])
62 {
63 int ret, r_opened = 0, receiver_num;
64 struct receiver *r = NULL;
65 struct receiver_node rn;
66 struct stdout_task sot = {.btrn = NULL};
67 static struct sched s;
68 struct task_info ti;
69
70 recv_cmdline_parser(argc, argv, &conf);
71 loglevel = get_loglevel_by_name(conf.loglevel_arg);
72 version_handle_flag("recv", conf.version_given);
73 recv_init();
74 if (conf.help_given || conf.detailed_help_given)
75 print_help_and_die();
76
77 memset(&rn, 0, sizeof(struct receiver_node));
78 rn.conf = check_receiver_arg(conf.receiver_arg, &receiver_num);
79 if (!rn.conf) {
80 PARA_EMERG_LOG("invalid receiver specifier\n");
81 ret = -E_RECV_SYNTAX;
82 goto out;
83 }
84 r = &receivers[receiver_num];
85 rn.receiver = r;
86 rn.btrn = btr_new_node(&(struct btr_node_description)
87 EMBRACE(.name = r->name));
88 ret = r->open(&rn);
89 if (ret < 0)
90 goto out;
91 r_opened = 1;
92
93 sot.btrn = btr_new_node(&(struct btr_node_description)
94 EMBRACE(.parent = rn.btrn, .name = "stdout"));
95 stdout_task_register(&sot, &s);
96
97 ti.name = r->name;
98 ti.pre_select = r->pre_select;
99 ti.post_select = r->post_select;
100 ti.context = &rn;
101 rn.task = task_register(&ti, &s);
102
103 s.default_timeout.tv_sec = 1;
104 s.default_timeout.tv_usec = 0;
105 ret = schedule(&s);
106 sched_shutdown(&s);
107 out:
108 if (r_opened)
109 r->close(&rn);
110 btr_remove_node(&rn.btrn);
111 btr_remove_node(&sot.btrn);
112 if (rn.conf)
113 r->free_config(rn.conf);
114
115 if (ret < 0)
116 PARA_ERROR_LOG("%s\n", para_strerror(-ret));
117 return ret < 0? EXIT_FAILURE : EXIT_SUCCESS;
118 }