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 /** the size of the output buffer */
30 #define DCCP_BUFSIZE 40960
33 * data specific to the dccp receiver
35 * \sa receiver receiver_node
37 struct private_dccp_recv_data {
38 /** the file descriptor for the dccp socket */
43 static void dccp_recv_close(struct receiver_node *rn)
46 struct private_dccp_recv_data *pdd = rn->private_data;
48 if (pdd && pdd->fd > 0)
52 free(rn->private_data);
53 rn->private_data = NULL;
57 static int dccp_recv_open(struct receiver_node *rn)
59 struct private_dccp_recv_data *pdd;
60 struct dccp_recv_args_info *conf = rn->conf;
61 int ret = makesock(AF_UNSPEC, IPPROTO_DCCP, 0, conf->host_arg, conf->port_arg);
66 rn->buf = para_calloc(DCCP_BUFSIZE);
67 rn->private_data = pdd = para_calloc(sizeof(struct private_dccp_recv_data));
70 mark_fd_nonblocking(pdd->fd);
74 static void dccp_shutdown(void)
79 static void *dccp_recv_parse_config(int argc, char **argv)
81 struct dccp_recv_args_info *tmp = para_calloc(sizeof(struct dccp_recv_args_info));
83 if (!dccp_recv_cmdline_parser(argc, argv, tmp))
89 static void dccp_recv_pre_select(struct sched *s, struct task *t)
91 struct receiver_node *rn = t->private_data;
92 struct private_dccp_recv_data *pdd = rn->private_data;
95 para_fd_set(pdd->fd, &s->rfds, &s->max_fileno);
98 static void dccp_recv_post_select(struct sched *s, struct task *t)
100 struct receiver_node *rn = t->private_data;
101 struct private_dccp_recv_data *pdd = rn->private_data;
103 t->ret = -E_DCCP_RECV_EOF;
104 if (rn->output_eof && *rn->output_eof)
107 if (!s->select_ret || !FD_ISSET(pdd->fd, &s->rfds))
108 goto out; /* nothing to do */
109 t->ret = -E_DCCP_OVERRUN;
110 if (rn->loaded >= DCCP_BUFSIZE)
112 t->ret = recv_bin_buffer(pdd->fd, rn->buf + rn->loaded,
113 DCCP_BUFSIZE - rn->loaded);
116 t->ret = -E_DCCP_RECV_EOF;
119 rn->loaded += t->ret;
127 * the init function of the dccp receiver
129 * \param r pointer to the receiver struct to initialize
131 * Initialize all function pointers of \a r
133 void dccp_recv_init(struct receiver *r)
135 r->shutdown = dccp_shutdown;
136 r->open = dccp_recv_open;
137 r->close = dccp_recv_close;
138 r->pre_select = dccp_recv_pre_select;
139 r->post_select = dccp_recv_post_select;
140 r->parse_config = dccp_recv_parse_config;