X-Git-Url: http://git.tuebingen.mpg.de/?p=paraslash.git;a=blobdiff_plain;f=dccp_recv.c;h=335ad2e630598de4d98cafbb2257e5e07be144af;hp=f56f58cbb2932ca95c0056f96df30ec5150b7519;hb=e0c146b3e200d875dbcc78b3c5a306f090d7dcd5;hpb=c9f109a9e7f2d6116b7906a852afc339c858c275 diff --git a/dccp_recv.c b/dccp_recv.c index f56f58cb..335ad2e6 100644 --- a/dccp_recv.c +++ b/dccp_recv.c @@ -1,9 +1,37 @@ +/* + * Copyright (C) 2006 Andre Noll + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA. + */ + +/** \file dccp_recv.c paraslash's dccp receiver */ + +/* + * based on client.c of dccp-cs-0.01.tar.bz2, + * (C) 2005 Ian McDonald + */ + #include "para.h" #include "error.h" #include "dccp.h" +#include "list.h" +#include "sched.h" #include "recv.h" #include "string.h" #include "net.h" +#include "fd.h" #include "dccp_recv.cmdline.h" @@ -12,8 +40,8 @@ #include #include - -#define DCCP_BUFSIZE 4096 +/** the size of the output buffer */ +#define DCCP_BUFSIZE 40960 /** * data specific to the dccp receiver @@ -43,7 +71,7 @@ static void dccp_recv_close(struct receiver_node *rn) static int dccp_recv_open(struct receiver_node *rn) { struct private_dccp_recv_data *pdd; - struct gengetopt_args_info *conf = rn->conf; + struct dccp_recv_args_info *conf = rn->conf; int ret; struct addrinfo *ai; char *tmp; @@ -83,7 +111,7 @@ static void dccp_shutdown(void) static void *dccp_recv_parse_config(int argc, char **argv) { - struct gengetopt_args_info *tmp = para_calloc(sizeof(struct gengetopt_args_info)); + struct dccp_recv_args_info *tmp = para_calloc(sizeof(struct dccp_recv_args_info)); if (!dccp_recv_cmdline_parser(argc, argv, tmp)) return tmp; @@ -91,32 +119,41 @@ static void *dccp_recv_parse_config(int argc, char **argv) return NULL; } -static int dccp_recv_pre_select(struct receiver_node *rn, fd_set *rfds, - __unused fd_set *wfds, __unused struct timeval *timeout) +static void dccp_recv_pre_select(struct sched *s, struct task *t) { + struct receiver_node *rn = t->private_data; struct private_dccp_recv_data *pdd = rn->private_data; - if (pdd) - FD_SET(pdd->fd, rfds); - return pdd->fd; + t->ret = 1; + para_fd_set(pdd->fd, &s->rfds, &s->max_fileno); } -static int dccp_recv_post_select(struct receiver_node *rn, int select_ret, - fd_set *rfds, __unused fd_set *wfds) +static void dccp_recv_post_select(struct sched *s, struct task *t) { - int ret; + struct receiver_node *rn = t->private_data; struct private_dccp_recv_data *pdd = rn->private_data; - if (!select_ret || !pdd || !FD_ISSET(pdd->fd, rfds)) - return 1; /* nothing to do */ + t->ret = -E_DCCP_RECV_EOF; + if (rn->output_eof && *rn->output_eof) + goto out; + t->ret = 1; + if (!s->select_ret || !FD_ISSET(pdd->fd, &s->rfds)) + goto out; /* nothing to do */ + t->ret = -E_DCCP_OVERRUN; if (rn->loaded >= DCCP_BUFSIZE) - return -E_DCCP_OVERRUN; - ret = recv_bin_buffer(pdd->fd, rn->buf + rn->loaded, + goto out; + t->ret = recv_bin_buffer(pdd->fd, rn->buf + rn->loaded, DCCP_BUFSIZE - rn->loaded); - if (ret <= 0) - return ret; - rn->loaded += ret; - return 1; + if (t->ret <= 0) { + if (!t->ret) + t->ret = -E_DCCP_RECV_EOF; + goto out; + } + rn->loaded += t->ret; + return; +out: + if (t->ret < 0) + rn->eof = 1; } /**