2 * Copyright (C) 2006-2007 Andre Noll <maan@systemlinux.org>
4 * Licensed under the GPL v2. For licencing details see COPYING.
7 /** \file dccp_recv.c paraslash's dccp receiver */
10 * based on client.c of dccp-cs-0.01.tar.bz2,
11 * (C) 2005 Ian McDonald <imcdnzl@gmail.com>
24 #include "dccp_recv.cmdline.h"
26 /* needed by getaddrinfo */
27 #include <sys/types.h>
28 #include <sys/socket.h>
31 /** the size of the output buffer */
32 #define DCCP_BUFSIZE 40960
35 * data specific to the dccp receiver
37 * \sa receiver receiver_node
39 struct private_dccp_recv_data {
40 /** the file descriptor for the dccp socket */
45 static void dccp_recv_close(struct receiver_node *rn)
48 struct private_dccp_recv_data *pdd = rn->private_data;
50 if (pdd && pdd->fd > 0)
54 free(rn->private_data);
55 rn->private_data = NULL;
59 static int dccp_recv_open(struct receiver_node *rn)
61 struct private_dccp_recv_data *pdd;
62 struct dccp_recv_args_info *conf = rn->conf;
67 rn->buf = para_calloc(DCCP_BUFSIZE);
68 rn->private_data = para_calloc(sizeof(struct private_dccp_recv_data));
69 pdd = rn->private_data;
70 ret = dccp_get_socket();
75 tmp = make_message("%d", conf->port_arg);
76 ret = getaddrinfo(conf->host_arg, tmp, NULL, &ai);
82 ret = dccp_set_socket(pdd->fd);
85 PARA_NOTICE_LOG("connecting to %s:%d\n", conf->host_arg, conf->port_arg);
86 ret = PARA_CONNECT(pdd->fd, ai->ai_addr);
89 ret = -E_DCCP_CONNECT;
92 mark_fd_nonblock(pdd->fd);
99 static void dccp_shutdown(void)
101 ; /* nothing to do */
104 static void *dccp_recv_parse_config(int argc, char **argv)
106 struct dccp_recv_args_info *tmp = para_calloc(sizeof(struct dccp_recv_args_info));
108 if (!dccp_recv_cmdline_parser(argc, argv, tmp))
114 static void dccp_recv_pre_select(struct sched *s, struct task *t)
116 struct receiver_node *rn = t->private_data;
117 struct private_dccp_recv_data *pdd = rn->private_data;
120 para_fd_set(pdd->fd, &s->rfds, &s->max_fileno);
123 static void dccp_recv_post_select(struct sched *s, struct task *t)
125 struct receiver_node *rn = t->private_data;
126 struct private_dccp_recv_data *pdd = rn->private_data;
128 t->ret = -E_DCCP_RECV_EOF;
129 if (rn->output_eof && *rn->output_eof)
132 if (!s->select_ret || !FD_ISSET(pdd->fd, &s->rfds))
133 goto out; /* nothing to do */
134 t->ret = -E_DCCP_OVERRUN;
135 if (rn->loaded >= DCCP_BUFSIZE)
137 t->ret = recv_bin_buffer(pdd->fd, rn->buf + rn->loaded,
138 DCCP_BUFSIZE - rn->loaded);
141 t->ret = -E_DCCP_RECV_EOF;
144 rn->loaded += t->ret;
152 * the init function of the dccp receiver
154 * \param r pointer to the receiver struct to initialize
156 * Initialize all function pointers of \a r
158 void dccp_recv_init(struct receiver *r)
160 r->shutdown = dccp_shutdown;
161 r->open = dccp_recv_open;
162 r->close = dccp_recv_close;
163 r->pre_select = dccp_recv_pre_select;
164 r->post_select = dccp_recv_post_select;
165 r->parse_config = dccp_recv_parse_config;