/*
- * Copyright (C) 1997-2008 Andre Noll <maan@systemlinux.org>
+ * Copyright (C) 1997-2009 Andre Noll <maan@systemlinux.org>
*
* Licensed under the GPL v2. For licencing details see COPYING.
*/
*
* Starting points for getting an overview:
*
+ *
* - The main programs: \ref server.c, \ref audiod.c, \ref client.c,
- * \ref audioc.c, \ref fsck.c,
+ * \ref audioc.c, \ref fsck.c, \ref afh.c
* - Server: \ref server_command, \ref sender,
* - Audio file selector: \ref audio_format_handler, \ref mood, \ref afs_table,
* - Client: \ref receiver, \ref receiver_node, \ref filter, \ref filter_node.
*
* The gory details, listed by topic:
*
- * - Audio format handlers: \ref mp3_afh.c, \ref ogg_afh.c, \ref aac_afh.c,
- * - Decoders: \ref mp3dec.c, \ref oggdec.c, \ref aacdec.c,
- * - Volume normalizer: \ref compress.c,
+ * - Audio format handlers: \ref send_common.c \ref mp3_afh.c, \ref ogg_afh.c, \ref aac_afh.c,
+ * - Decoders: \ref mp3dec_filter.c, \ref oggdec_filter.c, \ref aacdec_filter.c,
+ * - Volume normalizer: \ref compress_filter.c,
* - Output: \ref alsa_write.c, \ref osx_write.c,
* - http: \ref http_recv.c, \ref http_send.c,
- * - ortp: \ref ortp_recv.c, \ref ortp_send.c,
+ * - udp: \ref udp_recv.c, \ref udp_send.c,
* - dccp: \ref dccp_recv.c, \ref dccp_send.c,
* - Audio file selector: \ref afs.c, \ref aft.c, \ref mood.c,
* - Afs structures: \ref afs_table, \ref audio_file_data,
#include <signal.h>
#include <dirent.h>
+#include <sys/time.h>
#include "para.h"
#include "error.h"
#include "sched.h"
#include "signal.h"
#include "user_list.h"
+#include "color.h"
/** Define the array of error lists needed by para_server. */
INIT_SERVER_ERRLISTS;
/** A random value used in child context for authentication. */
uint32_t afs_socket_cookie;
+/** The mutex protecting the shared memory area containing the mmd struct. */
+int mmd_mutex;
+
/* global variables for server-internal use */
static FILE *logfile;
/** The file containing user information (public key, permissions). */
static char *user_list_file = NULL;
-static int mmd_mutex, mmd_shm_id;
-static pid_t afs_pid;
+static int mmd_shm_id;
-/** The task resposible for server command handling. */
+/** The task responsible for server command handling. */
struct server_command_task {
/** TCP port on which para_server listens for connections. */
int listen_fd;
struct task task;
};
+static int want_colors(void)
+{
+ if (conf.color_arg == color_arg_no)
+ return 0;
+ if (conf.color_arg == color_arg_yes)
+ return 1;
+ if (logfile)
+ return 0;
+ return isatty(STDERR_FILENO);
+}
+
+static int get_loglevel_by_name(const char *txt, size_t n)
+{
+ if (!strncasecmp(txt, "debug", n))
+ return LL_DEBUG;
+ if (!strncasecmp(txt, "info", n))
+ return LL_INFO;
+ if (!strncasecmp(txt, "notice", n))
+ return LL_NOTICE;
+ if (!strncasecmp(txt, "warning", n))
+ return LL_WARNING;
+ if (!strncasecmp(txt, "error", n))
+ return LL_ERROR;
+ if (!strncasecmp(txt, "crit", n))
+ return LL_CRIT;
+ if (!strncasecmp(txt, "emerg", n))
+ return LL_EMERG;
+ return -1;
+}
+
+static char log_colors[NUM_LOGLEVELS][COLOR_MAXLEN];
+
+static void init_colors_or_die(void)
+{
+ int ret, i;
+ static const char *default_log_colors[NUM_LOGLEVELS] = {
+ [LL_DEBUG] = "normal",
+ [LL_INFO] = "white bold",
+ [LL_NOTICE] = "cyan bold",
+ [LL_WARNING] = "green bold",
+ [LL_ERROR] = "yellow bold",
+ [LL_CRIT] = "magenta bold",
+ [LL_EMERG] = "red bold",
+ };
+
+ for (i = 0; i < NUM_LOGLEVELS; i++) {
+ ret = color_parse(default_log_colors[i], log_colors[i]);
+ assert(ret >= 0);
+ }
+
+ for (i = 0; i < conf.log_color_given; i++) {
+ char *arg = conf.log_color_arg[i], *p = strchr(arg, ':');
+ int ll;
+ if (!p)
+ goto err;
+ ret = get_loglevel_by_name(arg, p - arg);
+ if (ret < 0)
+ goto err;
+ ll = ret;
+ p++;
+ ret = color_parse(p, log_colors[ll]);
+ if (ret < 0)
+ goto err;
+ }
+ return;
+err:
+ PARA_EMERG_LOG("color syntax error, arg %d (%s)\n", i,
+ conf.log_color_arg[i]);
+ exit(EXIT_FAILURE);
+}
+
/**
* Para_server's log function.
*
* \param ll The log level.
* \param fmt The format string describing the log message.
*/
-void para_log(int ll, const char* fmt,...)
+__printf_2_3 void para_log(int ll, const char* fmt,...)
{
va_list argp;
- FILE *outfd;
+ FILE *fp;
struct tm *tm;
time_t t1;
- char str[MAXLINE] = "";
- pid_t mypid;
+ char *color, str[MAXLINE] = "";
+ ll = PARA_MIN(ll, NUM_LOGLEVELS - 1);
+ ll = PARA_MAX(ll, LL_DEBUG);
if (ll < conf.loglevel_arg)
return;
- outfd = logfile? logfile : stderr;
+
+ fp = logfile? logfile : stderr;
+ color = want_colors()? log_colors[ll] : NULL;
+
+ if (color)
+ fprintf(fp, "%s", color);
+ /* date and time */
time(&t1);
tm = localtime(&t1);
strftime(str, MAXLINE, "%b %d %H:%M:%S", tm);
- fprintf(outfd, "%s ", str);
- if (conf.loglevel_arg <= INFO)
- fprintf(outfd, "%i: ", ll);
- mypid = getpid();
- if (conf.loglevel_arg <= INFO)
- fprintf(outfd, "(%d) ", (int)mypid);
+ fprintf(fp, "%s ", str);
+ /* loglevel */
+ if (conf.loglevel_arg <= LL_INFO)
+ fprintf(fp, "%i: ", ll);
+ if (conf.loglevel_arg <= LL_INFO) { /* log pid */
+ pid_t mypid = getpid();
+ fprintf(fp, "(%d) ", (int)mypid);
+ }
va_start(argp, fmt);
- vfprintf(outfd, fmt, argp);
+ vfprintf(fp, fmt, argp);
va_end(argp);
+ if (color)
+ fprintf(fp, "%s", COLOR_RESET);
}
/*
* setup shared memory area and get mutex for locking
*/
-static void shm_init(void)
+static void init_ipc_or_die(void)
{
void *shm;
int ret = shm_new(sizeof(struct misc_meta_data));
}
/**
- * Lock the shared memory area containing the mmd struct.
+ * (Re-)read the server configuration files.
*
- * \sa semop(2), struct misc_meta_data.
- */
-void mmd_lock(void)
-{
- mutex_lock(mmd_mutex);
-}
-
-/**
- * Unlock the shared memory area containing the mmd struct.
+ * \param override Passed to gengetopt to activate the override feature.
*
- * \sa semop(2), struct misc_meta_data.
+ * This function also re-opens the logfile and sets the global \a
+ * user_list_file variable.
*/
-
-void mmd_unlock(void)
-{
- mutex_unlock(mmd_mutex);
-}
-
-static void parse_config(int override)
+void parse_config_or_die(int override)
{
char *home = para_homedir();
struct stat statbuf;
int ret;
char *cf;
+ close_log(logfile);
+ logfile = NULL;
if (conf.config_file_given)
cf = para_strdup(conf.config_file_arg);
else
}
if (conf.logfile_given)
logfile = open_log(conf.logfile_arg);
+ if (want_colors())
+ init_colors_or_die();
ret = 1;
out:
free(cf);
static void handle_sighup(void)
{
PARA_NOTICE_LOG("SIGHUP\n");
- close_log(logfile); /* gets reopened if necessary by parse_config */
- logfile = NULL;
- parse_config(1); /* reopens log */
+ parse_config_or_die(1); /* reopens log */
init_user_list(user_list_file); /* reload user list */
- if (afs_pid)
- kill(afs_pid, SIGHUP);
+ if (mmd->afs_pid)
+ kill(mmd->afs_pid, SIGHUP);
}
static void signal_post_select(struct sched *s, struct task *t)
int ret = para_reap_child(&pid);
if (ret <= 0)
break;
- if (pid != afs_pid)
+ if (pid != mmd->afs_pid)
continue;
PARA_EMERG_LOG("fatal: afs died\n");
goto genocide;
if (ret < 0)
exit(EXIT_FAILURE);
afs_socket_cookie = para_random((uint32_t)-1);
- afs_pid = fork();
- if (afs_pid < 0)
+ mmd->afs_pid = fork();
+ if (mmd->afs_pid < 0)
exit(EXIT_FAILURE);
- if (!afs_pid) { /* child (afs) */
+ if (!mmd->afs_pid) { /* child (afs) */
close(afs_server_socket[0]);
afs_init(afs_socket_cookie, afs_server_socket[1]);
}
/* parse command line options */
server_cmdline_parser_ext(argc, argv, &conf, ¶ms);
HANDLE_VERSION_FLAG("server", conf);
- para_drop_privileges(conf.user_arg, conf.group_arg);
+ drop_privileges_or_die(conf.user_arg, conf.group_arg);
/* parse config file, open log and set defaults */
- parse_config(0);
+ parse_config_or_die(0);
log_welcome("para_server", conf.loglevel_arg);
- shm_init(); /* init mmd struct */
+ 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 */
init_user_list(user_list_file);
/* become daemon */
daemon_init();
PARA_NOTICE_LOG("initializing audio format handlers\n");
afh_init();
- mmd->server_pid = getpid();
- init_signal_task();
PARA_NOTICE_LOG("initializing the audio file selector\n");
afs_socket = init_afs();
+ init_signal_task();
PARA_NOTICE_LOG("initializing virtual streaming system\n");
init_vss_task(afs_socket);
init_server_command_task(argc, argv);
int ret;
status_refresh();
- mmd_unlock();
+ mutex_unlock(mmd_mutex);
ret = para_select(max_fileno + 1, readfds, writefds, timeout_tv);
- mmd_lock();
+ mutex_lock(mmd_mutex);
return ret;
}
.select_function = server_select
};
server_init(argc, argv);
- mmd_lock();
+ mutex_lock(mmd_mutex);
ret = schedule(&s);
if (ret < 0) {
PARA_EMERG_LOG("%s\n", para_strerror(-ret));
projects / paraslash.git / blobdiff