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>
14 #include <sys/types.h>
27 #include "dccp_recv.cmdline.h"
29 /* needed by getaddrinfo */
30 #include <sys/types.h>
31 #include <sys/socket.h>
34 /** the size of the output buffer */
35 #define DCCP_BUFSIZE 40960
38 * data specific to the dccp receiver
40 * \sa receiver receiver_node
42 struct private_dccp_recv_data {
43 /** the file descriptor for the dccp socket */
48 static void dccp_recv_close(struct receiver_node *rn)
51 struct private_dccp_recv_data *pdd = rn->private_data;
53 if (pdd && pdd->fd > 0)
57 free(rn->private_data);
58 rn->private_data = NULL;
62 static int dccp_recv_open(struct receiver_node *rn)
64 struct private_dccp_recv_data *pdd;
65 struct dccp_recv_args_info *conf = rn->conf;
70 rn->buf = para_calloc(DCCP_BUFSIZE);
71 rn->private_data = para_calloc(sizeof(struct private_dccp_recv_data));
72 pdd = rn->private_data;
73 ret = dccp_get_socket();
78 tmp = make_message("%d", conf->port_arg);
79 ret = getaddrinfo(conf->host_arg, tmp, NULL, &ai);
85 ret = dccp_set_socket(pdd->fd);
88 PARA_NOTICE_LOG("connecting to %s:%d\n", conf->host_arg, conf->port_arg);
89 ret = PARA_CONNECT(pdd->fd, ai->ai_addr);
92 ret = -E_DCCP_CONNECT;
95 mark_fd_nonblock(pdd->fd);
102 static void dccp_shutdown(void)
104 ; /* nothing to do */
107 static void *dccp_recv_parse_config(int argc, char **argv)
109 struct dccp_recv_args_info *tmp = para_calloc(sizeof(struct dccp_recv_args_info));
111 if (!dccp_recv_cmdline_parser(argc, argv, tmp))
117 static void dccp_recv_pre_select(struct sched *s, struct task *t)
119 struct receiver_node *rn = t->private_data;
120 struct private_dccp_recv_data *pdd = rn->private_data;
123 para_fd_set(pdd->fd, &s->rfds, &s->max_fileno);
126 static void dccp_recv_post_select(struct sched *s, struct task *t)
128 struct receiver_node *rn = t->private_data;
129 struct private_dccp_recv_data *pdd = rn->private_data;
131 t->ret = -E_DCCP_RECV_EOF;
132 if (rn->output_eof && *rn->output_eof)
135 if (!s->select_ret || !FD_ISSET(pdd->fd, &s->rfds))
136 goto out; /* nothing to do */
137 t->ret = -E_DCCP_OVERRUN;
138 if (rn->loaded >= DCCP_BUFSIZE)
140 t->ret = recv_bin_buffer(pdd->fd, rn->buf + rn->loaded,
141 DCCP_BUFSIZE - rn->loaded);
144 t->ret = -E_DCCP_RECV_EOF;
147 rn->loaded += t->ret;
155 * the init function of the dccp receiver
157 * \param r pointer to the receiver struct to initialize
159 * Initialize all function pointers of \a r
161 void dccp_recv_init(struct receiver *r)
163 r->shutdown = dccp_shutdown;
164 r->open = dccp_recv_open;
165 r->close = dccp_recv_close;
166 r->pre_select = dccp_recv_pre_select;
167 r->post_select = dccp_recv_post_select;
168 r->parse_config = dccp_recv_parse_config;