/*
- * Copyright (C) 1997-2010 Andre Noll <maan@systemlinux.org>
+ * Copyright (C) 1997-2013 Andre Noll <maan@systemlinux.org>
*
* Licensed under the GPL v2. For licencing details see COPYING.
*/
/**
- * \mainpage Paraslash API Reference
- *
- * Starting points for getting an overview:
- *
+ * \mainpage Starting points for getting an overview:
*
* - The main programs: \ref server.c, \ref audiod.c, \ref client.c,
- * \ref audioc.c, \ref afh.c
+ * \ref audioc.c, \ref afh.c, \ref play.c,
* - Server: \ref server_command, \ref sender,
* - Audio file selector: \ref audio_format_handler, \ref afs_table,
- * - Client: \ref receiver, \ref receiver_node, \ref filter, \ref filter_node.
+ * - Client: \ref receiver, \ref receiver_node, \ref filter,
+ * \ref filter_node, \ref writer_node.
*
*
* The gory details, listed by topic:
*
* - Audio format handlers: \ref send_common.c \ref mp3_afh.c,
- * \ref ogg_afh.c, \ref aac_afh.c, \ref wma_afh.c,
+ * \ref ogg_afh.c, \ref aac_afh.c, \ref wma_afh.c, \ref spx_afh.c
* - Decoders: \ref mp3dec_filter.c, \ref oggdec_filter.c,
- * \ref aacdec_filter.c, \ref wmadec_filter.c,
+ * \ref aacdec_filter.c, \ref wmadec_filter.c, spxdec_filter.c,
+ * \ref flacdec_filter.c,
* - Volume normalizer: \ref compress_filter.c,
* - Output: \ref alsa_write.c, \ref osx_write.c, \ref oss_write.c,
* - http: \ref http_recv.c, \ref http_send.c,
* - Spawning processes: \ref exec.c,
* - Inter process communication: \ref ipc.c,
* - Blob tables: \ref blob.c,
- * - The error subssystem: \ref error.h.
+ * - The error subsystem: \ref error.h.
* - Access control for paraslash senders: \ref acl.c, \ref acl.h.
+ * - Internal crypto API: \ref crypt.h.
+ * - interactive sessions (libreadline): \ref interactive.c.
*
* Low-level data structures:
*
* - Doubly linked lists: \ref list.h,
* - Ring buffer: \ref ringbuffer.c, \ref ringbuffer.h,
- * - Hashing: \ref hash.h, \ref sha1.h, \ref sha1.c,
- * - Crypto: \ref crypt.c.
+ * - openssl: \ref crypt.c
+ * - libgcrypt: \ref gcrypt.c
* - Forward error correction: \ref fec.c.
*/
#include <signal.h>
-#include <dirent.h>
-#include <sys/time.h>
-#include <openssl/rc4.h>
#include <regex.h>
#include <osl.h>
#include "string.h"
#include "afs.h"
#include "server.h"
+#include "list.h"
+#include "send.h"
+#include "sched.h"
#include "vss.h"
#include "config.h"
#include "close_on_fork.h"
-#include "list.h"
-#include "send.h"
#include "net.h"
#include "daemon.h"
#include "ipc.h"
#include "fd.h"
-#include "sched.h"
#include "signal.h"
#include "user_list.h"
#include "color.h"
+#include "ggo.h"
+#include "version.h"
+
+__printf_2_3 void (*para_log)(int, const char*, ...) = daemon_log;
/** Define the array of error lists needed by para_server. */
INIT_SERVER_ERRLISTS;
/** The file containing user information (public key, permissions). */
static char *user_list_file = NULL;
+static struct sched sched;
/** The task responsible for server command handling. */
struct server_command_task {
static void init_colors_or_die(void)
{
- int ret, i;
+ int i;
if (!want_colors())
return;
daemon_set_flag(DF_COLOR_LOG);
daemon_set_default_log_colors();
- for (i = 0; i < conf.log_color_given; i++) {
- ret = daemon_set_log_color(conf.log_color_arg[i]);
- if (ret < 0)
- exit(EXIT_FAILURE);
- }
+ for (i = 0; i < conf.log_color_given; i++)
+ daemon_set_log_color_or_die(conf.log_color_arg[i]);
}
/*
.print_errors = !conf.daemon_given
};
server_cmdline_parser_config_file(cf, &conf, ¶ms);
+ daemon_set_loglevel(conf.loglevel_arg);
conf.daemon_given = tmp;
}
if (conf.logfile_given) {
daemon_set_logfile(conf.logfile_arg);
daemon_open_log_or_die();
}
- daemon_set_loglevel(conf.loglevel_arg);
init_colors_or_die();
daemon_set_flag(DF_LOG_PID);
daemon_set_flag(DF_LOG_LL);
kill(mmd->afs_pid, SIGHUP);
}
-static void signal_post_select(struct sched *s, __a_unused struct task *t)
+static int signal_post_select(struct sched *s, __a_unused struct task *t)
{
int signum = para_next_signal(&s->rfds);
switch (signum) {
case 0:
- return;
+ return 0;
case SIGHUP:
handle_sighup();
break;
shm_detach(mmd);
exit(EXIT_FAILURE);
}
+ return 0;
}
static void init_signal_task(void)
para_install_sighandler(SIGCHLD);
para_sigaction(SIGPIPE, SIG_IGN);
add_close_on_fork_list(st->fd);
- register_task(&st->task);
+ register_task(&sched, &st->task);
}
static void command_pre_select(struct sched *s, struct task *t)
para_fd_set(sct->listen_fd, &s->rfds, &s->max_fileno);
}
-static void command_post_select(struct sched *s, struct task *t)
+static int command_post_select(struct sched *s, struct task *t)
{
struct server_command_task *sct = container_of(t, struct server_command_task, task);
if (child_pid) {
close(new_fd);
/* parent keeps accepting connections */
- return;
+ return 0;
}
/* mmd might already have changed at this point */
free(chunk_table);
for (i = sct->argc - 1; i >= 0; i--)
memset(sct->argv[i], 0, strlen(sct->argv[i]));
sprintf(sct->argv[0], "para_server (serving %s)", peer_name);
- return handle_connect(new_fd, peer_name);
+ handle_connect(new_fd, peer_name);
+ /* never reached*/
out:
if (ret < 0)
PARA_CRIT_LOG("%s\n", para_strerror(-ret));
+ return 0;
}
static void init_server_command_task(int argc, char **argv)
if (ret < 0)
goto err;
add_close_on_fork_list(sct->listen_fd); /* child doesn't need the listener */
- register_task(&sct->task);
+ sprintf(sct->task.status, "server command task");
+ register_task(&sched, &sct->task);
return;
err:
PARA_EMERG_LOG("%s\n", para_strerror(-ret));
exit(EXIT_FAILURE);
}
-static int init_afs(void)
+static int init_afs(int argc, char **argv)
{
int ret, afs_server_socket[2];
pid_t afs_pid;
if (afs_pid < 0)
exit(EXIT_FAILURE);
if (afs_pid == 0) { /* child (afs) */
+ int i;
+ for (i = argc - 1; i >= 0; i--)
+ memset(argv[i], 0, strlen(argv[i]));
+ sprintf(argv[0], "para_server (afs)");
close(afs_server_socket[0]);
afs_init(afs_socket_cookie, afs_server_socket[1]);
}
return afs_server_socket[0];
}
-__noreturn static void tmp_sigchld_handler(__a_unused int s)
+__noreturn static void print_help_and_die(void)
{
- PARA_EMERG_LOG("caught early SIGCHLD\n");
- exit(EXIT_FAILURE);
+ struct ggo_help h = DEFINE_GGO_HELP(server);
+ bool d = conf.detailed_help_given;
+
+ ggo_print_help(&h, d? GPH_STANDARD_FLAGS_DETAILED : GPH_STANDARD_FLAGS);
+ exit(0);
}
static void server_init(int argc, char **argv)
init_random_seed_or_die();
/* parse command line options */
server_cmdline_parser_ext(argc, argv, &conf, ¶ms);
- HANDLE_VERSION_FLAG("server", conf);
+ daemon_set_loglevel(conf.loglevel_arg);
+ version_handle_flag("server", conf.version_given);
+ if (conf.help_given || conf.detailed_help_given)
+ print_help_and_die();
drop_privileges_or_die(conf.user_arg, conf.group_arg);
/* parse config file, open log and set defaults */
parse_config_or_die(0);
log_welcome("para_server");
init_ipc_or_die(); /* init mmd struct and mmd->lock */
/* make sure, the global now pointer is uptodate */
- gettimeofday(now, NULL);
- server_uptime(UPTIME_SET); /* reset server uptime */
+ clock_get_realtime(now);
+ set_server_start_time(now);
init_user_list(user_list_file);
/* become daemon */
if (conf.daemon_given)
- daemonize();
+ daemonize(true /* parent waits for SIGTERM */);
PARA_NOTICE_LOG("initializing audio format handlers\n");
afh_init();
*/
para_sigaction(SIGUSR1, SIG_IGN);
/*
- * We have to install a SIGCHLD handler before the afs process is being
- * forked off. Otherwise, para_server does not notice if afs dies before
- * the SIGCHLD handler has been installed by init_signal_task() below.
+ * We have to block SIGCHLD before the afs process is being forked off.
+ * Otherwise, para_server does not notice if afs dies before the
+ * SIGCHLD handler has been installed for the parent process by
+ * init_signal_task() below.
*/
- para_sigaction(SIGCHLD, tmp_sigchld_handler);
+ para_block_signal(SIGCHLD);
PARA_NOTICE_LOG("initializing the audio file selector\n");
- afs_socket = init_afs();
+ afs_socket = init_afs(argc, argv);
init_signal_task();
+ para_unblock_signal(SIGCHLD);
PARA_NOTICE_LOG("initializing virtual streaming system\n");
- init_vss_task(afs_socket);
+ init_vss_task(afs_socket, &sched);
init_server_command_task(argc, argv);
+ if (conf.daemon_given)
+ kill(getppid(), SIGTERM);
PARA_NOTICE_LOG("server init complete\n");
}
static void status_refresh(void)
{
static int prev_uptime = -1, prev_events = -1;
- int uptime = server_uptime(UPTIME_GET), ret = 1;
+ int uptime = get_server_uptime(now);
if (prev_events != mmd->events)
goto out;
prev_uptime = uptime;
prev_events = mmd->events;
mmd->vss_status_flags = mmd->new_vss_status_flags;
- if (ret) {
- PARA_DEBUG_LOG("%d events, forcing status update\n",
- mmd->events);
- killpg(0, SIGUSR1);
- }
+ PARA_DEBUG_LOG("%d events, forcing status update\n", mmd->events);
+ killpg(0, SIGUSR1);
}
static int server_select(int max_fileno, fd_set *readfds, fd_set *writefds,
int main(int argc, char *argv[])
{
int ret;
- static struct sched s = {
- .default_timeout = {
- .tv_sec = 1,
- .tv_usec = 0
- },
- .select_function = server_select
- };
+
+ sched.default_timeout.tv_sec = 1;
+ sched.select_function = server_select;
+
server_init(argc, argv);
mutex_lock(mmd_mutex);
- ret = schedule(&s);
+ ret = schedule(&sched);
if (ret < 0) {
PARA_EMERG_LOG("%s\n", para_strerror(-ret));
exit(EXIT_FAILURE);
projects / paraslash.git / blobdiff