recv.c: Fix receiver node eof handling
[paraslash.git] / recv.c
1 /*
2 * Copyright (C) 2005-2006 Andre Noll <maan@systemlinux.org>
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
17 */
18 #include "para.h"
19
20 #include "list.h"
21 #include "sched.h"
22 #include "recv.h"
23 #include "recv.cmdline.h"
24 #include "fd.h"
25 #include "error.h"
26 #include "stdout.h"
27
28 struct recv_args_info conf;
29
30 INIT_RECV_ERRLISTS;
31
32 __printf_2_3 void para_log(int ll, const char* fmt,...)
33 {
34 va_list argp;
35
36 /* ignore log message if loglevel is not high enough */
37 if (ll < conf.loglevel_arg)
38 return;
39 va_start(argp, fmt);
40 vfprintf(stderr, fmt, argp);
41 va_end(argp);
42 }
43
44 static void *parse_config(int argc, char *argv[], int *receiver_num)
45 {
46 int i;
47
48 if (recv_cmdline_parser(argc, argv, &conf))
49 return NULL;
50 if (conf.list_receivers_given) {
51 printf("available receivers: ");
52 for (i = 0; receivers[i].name; i++)
53 printf("%s%s", i? " " : "", receivers[i].name);
54 printf("\nTry\n\tpara_recv -r '<receivername> -h'\n"
55 "for help on <receivername>.\n");
56 exit(EXIT_SUCCESS);
57 }
58 return check_receiver_arg(conf.receiver_arg, receiver_num);
59 }
60
61 void rn_event_handler(struct task *t)
62 {
63 struct receiver_node *rn = t->private_data;
64 PARA_NOTICE_LOG("%s\n", PARA_STRERROR(-t->ret));
65 rn->eof = 1;
66 unregister_task(t);
67 }
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 struct sched s;
76
77 s.default_timeout.tv_sec = 1;
78 s.default_timeout.tv_usec = 0;
79
80 memset(&rn, 0, sizeof(struct receiver_node));
81 for (ret = 0; receivers[ret].name; ret++)
82 receivers[ret].init(&receivers[ret]);
83 ret = -E_RECV_SYNTAX;
84 rn.conf = parse_config(argc, argv, &receiver_num);
85 if (!rn.conf) {
86 PARA_EMERG_LOG("%s", "parse failed\n");
87 goto out;
88 }
89 r = &receivers[receiver_num];
90 rn.receiver = r;
91 ret = r->open(&rn);
92 if (ret < 0)
93 goto out;
94 r_opened = 1;
95
96 stdout_set_defaults(&sot);
97 sot.buf = rn.buf;
98 sot.loaded = &rn.loaded;
99 sot.input_eof = &rn.eof;
100 register_task(&sot.task);
101
102 rn.task.private_data = &rn;
103 rn.task.pre_select = r->pre_select;
104 rn.task.post_select = r->post_select;
105 rn.task.event_handler = rn_event_handler;
106 sprintf(rn.task.status, "receiver node");
107 register_task(&rn.task);
108
109
110 ret = sched(&s);
111 out:
112 if (r_opened)
113 r->close(&rn);
114 if (r)
115 r->shutdown();
116 if (ret < 0)
117 PARA_ERROR_LOG("%s\n", PARA_STRERROR(-ret));
118 return ret;
119 }