/*
- * Copyright (C) 2005-2006 Andre Noll <maan@systemlinux.org>
+ * Copyright (C) 2005-2007 Andre Noll <maan@systemlinux.org>
*
* 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
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
*/
+
+/** \file recv.c the stand-alone audio stream receiver */
+
#include "para.h"
#include "list.h"
#include "error.h"
#include "stdout.h"
-struct gengetopt_args_info conf;
+/** the gengetopt args info struct */
+struct recv_args_info conf;
-INIT_RECV_ERRLISTS;
+/** always log to stderr */
+INIT_STDERR_LOGGING(conf.loglevel_arg);
-__printf_2_3 void para_log(int ll, const char* fmt,...)
-{
- va_list argp;
-
- /* ignore log message if loglevel is not high enough */
- if (ll < conf.loglevel_arg)
- return;
- va_start(argp, fmt);
- vfprintf(stderr, fmt, argp);
- va_end(argp);
-}
+/** init array of error codes used by para_recv */
+INIT_RECV_ERRLISTS;
static void *parse_config(int argc, char *argv[], int *receiver_num)
{
int i;
- if (cmdline_parser(argc, argv, &conf))
+ if (recv_cmdline_parser(argc, argv, &conf))
return NULL;
+ HANDLE_VERSION_FLAG("recv", conf);
if (conf.list_receivers_given) {
printf("available receivers: ");
for (i = 0; receivers[i].name; i++)
return check_receiver_arg(conf.receiver_arg, receiver_num);
}
-#if 0
-int main(int argc, char *argv[])
+static void rn_event_handler(struct task *t)
{
- int ret, eof = 0, max, r_opened = 0, receiver_num;
- struct timeval timeout;
- struct receiver *r = NULL;
- fd_set rfds, wfds;
- struct receiver_node rn;
-
- memset(&rn, 0, sizeof(struct receiver_node));
- for (ret = 0; receivers[ret].name; ret++)
- receivers[ret].init(&receivers[ret]);
- ret = -E_RECV_SYNTAX;
- rn.conf = parse_config(argc, argv, &receiver_num);
- if (!rn.conf) {
- PARA_EMERG_LOG("%s", "parse failed\n");
- goto out;
- }
- r = &receivers[receiver_num];
- rn.receiver = r;
- ret = r->open(&rn);
- if (ret < 0)
- goto out;
- r_opened = 1;
-recv:
- FD_ZERO(&rfds);
- FD_ZERO(&wfds);
- timeout.tv_sec = 0;
- timeout.tv_usec = 999 * 1000;
- max = -1;
- ret = r->pre_select(&rn, &rfds, &wfds, &timeout);
- max = PARA_MAX(max, ret);
-
- PARA_DEBUG_LOG("timeout: %lums, max: %d\n", tv2ms(&timeout), max);
- ret = para_select(max + 1, &rfds, &wfds, &timeout);
- if (ret < 0) {
- ret = -E_RECV_SELECT;
- goto out;
- }
- ret = r->post_select(&rn, ret, &rfds, &wfds);
- if (ret < 0)
- goto out;
- if (!ret)
- eof = 1;
- if (!rn.loaded) {
- if (eof)
- goto out;
- goto recv;
- }
- ret = write(STDOUT_FILENO, rn.buf, rn.loaded);
- PARA_DEBUG_LOG("wrote %d/%zd\n", ret, rn.loaded);
- if (ret < 0) {
- ret = -E_WRITE_STDOUT;
- goto out;
- }
- if (ret != rn.loaded) {
- PARA_INFO_LOG("short write %d/%zd\n", ret, rn.loaded);
- memmove(rn.buf, rn.buf + ret, rn.loaded - ret);
- }
- rn.loaded -= ret;
- if (rn.loaded || !eof)
- goto recv;
-out:
- if (r_opened)
- r->close(&rn);
- if (r)
- r->shutdown();
- if (ret < 0)
- PARA_ERROR_LOG("%s\n", PARA_STRERROR(-ret));
- return ret;
-}
-#endif
-
-void rn_event_handler(struct task *t)
-{
- PARA_ERROR_LOG("%s\n", PARA_STRERROR(-t->ret));
- unregister_task(t);
-}
-
-void stdout_event_handler(struct task *t)
-{
- PARA_ERROR_LOG("%s\n", PARA_STRERROR(-t->ret));
+ struct receiver_node *rn = t->private_data;
+ PARA_NOTICE_LOG("%s\n", PARA_STRERROR(-t->ret));
+ rn->eof = 1;
unregister_task(t);
}
+/**
+ * the main function of para_recv
+ *
+ * \param argc number of arguments
+ * \param argv vector of arguments
+ *
+ * para_recv uses the specified receiver to receive an audio stream sent by
+ * para_server. The received data is written to stdout.
+ *
+ * \return \a EXIT_SUCCESS on success, \a EXIT_FAILURE on errors.
+ */
int main(int argc, char *argv[])
{
- int ret, eof = 0, max, r_opened = 0, receiver_num;
- struct timeval timeout;
- struct receiver *r = NULL;
- fd_set rfds, wfds;
+ int ret, r_opened = 0, receiver_num;
+ struct receiver *r = NULL;
struct receiver_node rn;
struct stdout_task sot;
struct sched s;
- init_sched();
s.default_timeout.tv_sec = 1;
s.default_timeout.tv_usec = 0;
goto out;
r_opened = 1;
- sot.task.private_data = &sot;
- sot.task.pre_select = stdout_pre_select;
- sot.task.post_select = stdout_post_select;
- sot.task.event_handler = stdout_event_handler;
- sot.task.flags = 0;
- sprintf(sot.task.status, "stdout writer");
+ stdout_set_defaults(&sot);
sot.buf = rn.buf;
sot.loaded = &rn.loaded;
- sot.eof = &rn.eof;
+ sot.input_eof = &rn.eof;
register_task(&sot.task);
rn.task.private_data = &rn;
rn.task.pre_select = r->pre_select;
rn.task.post_select = r->post_select;
rn.task.event_handler = rn_event_handler;
- rn.task.flags = 0;
sprintf(rn.task.status, "receiver node");
register_task(&rn.task);
-
ret = sched(&s);
out:
if (r_opened)
r->shutdown();
if (ret < 0)
PARA_ERROR_LOG("%s\n", PARA_STRERROR(-ret));
- return ret;
+ return ret < 0? EXIT_FAILURE : EXIT_SUCCESS;
}