announce upcoming features
[paraslash.git] / server.c
index f2835ba..1805c92 100644 (file)
--- a/server.c
+++ b/server.c
@@ -33,6 +33,7 @@
 #include "db.h"
 #include "server.h"
 #include "afs.h"
+#include "afh.h" /* FIXME */
 #include "config.h"
 #include "close_on_fork.h"
 #include "send.h"
@@ -41,6 +42,7 @@
 #include "daemon.h"
 #include "string.h"
 #include "ipc.h"
+#include "fd.h"
 
 /** define the array of error lists needed by para_server */
 INIT_SERVER_ERRLISTS;
@@ -57,20 +59,21 @@ struct misc_meta_data *mmd;
 */
 struct gengetopt_args_info conf;
 char *user_list = NULL;
+extern void dccp_send_init(struct sender *);
 extern void http_send_init(struct sender *);
 extern void ortp_send_init(struct sender *);
-extern struct audio_format afl[];
 
+/* TODO: This is better handled by autoconf */
 /** the list of supported audio file selectors */
-struct audio_file_selector dblist[] = {
+struct audio_file_selector selectors[] = {
        {
                .name = "random",
                .init = random_selector_init,
                .update_audio_file = NULL,
        },
        {
-               .name = "plm",
-               .init = plm_selector_init,
+               .name = "playlist",
+               .init = playlist_selector_init,
                .update_audio_file = NULL,
                .pre_select = NULL,
                .post_select = NULL,
@@ -95,6 +98,10 @@ struct sender senders[] = {
                .name = "http",
                .init = http_send_init,
        },
+       {
+               .name = "dccp",
+               .init = dccp_send_init,
+       },
 #ifdef HAVE_ORTP
        {
                .name = "ortp",
@@ -118,7 +125,7 @@ static int signal_pipe;
  * \param ll the log level
  * \param fmt the format string describing the log message
  */
-void para_log(int ll, char* fmt,...)
+void para_log(int ll, const char* fmt,...)
 {
        va_list argp;
        FILE *outfd;
@@ -129,15 +136,7 @@ void para_log(int ll, char* fmt,...)
 
        if (ll < conf.loglevel_arg)
                return;
-       if (!logfile) {
-               if (ll < WARNING)
-                       outfd = stdout;
-               else
-                       outfd = stderr;
-       } else
-               outfd = logfile;
-       if (conf.daemon_given && !logfile)
-               return;
+       outfd = logfile? logfile : stderr;
        time(&t1);
        tm = localtime(&t1);
        strftime(str, MAXLINE, "%b %d %H:%M:%S", tm);
@@ -174,7 +173,7 @@ static void shm_init(void)
                goto err_out;
        mmd_mutex = ret;
 
-       mmd->dbt_num = 0;
+       mmd->selector_num = 0;
        mmd->num_played = 0;
        mmd->num_commands = 0;
        mmd->events = 0;
@@ -263,7 +262,6 @@ static void setup_signal_handling(void)
        int ret = 0;
 
        signal_pipe = para_signal_init();
-//     fcntl(signal_pipe, F_SETFL, O_NONBLOCK);
        PARA_NOTICE_LOG("%s", "setting up signal handlers\n");
        ret += para_install_sighandler(SIGINT);
        ret += para_install_sighandler(SIGTERM);
@@ -277,30 +275,30 @@ static void setup_signal_handling(void)
        }
 }
 
-static void init_dbtool(void)
+static void init_selector(void)
 {
        int i, ret;
 
-       mmd->dbt_change = -1; /* no change nec., set to new dbt num by com_cdt */
+       mmd->selector_change = -1; /* no change nec., set to new num by com_chs */
        if (!conf.selector_given)
                goto random;
-       for (i = 0; dblist[i].name; i++) {
-               if (strcmp(dblist[i].name, conf.selector_arg))
+       for (i = 0; selectors[i].name; i++) {
+               if (strcmp(selectors[i].name, conf.selector_arg))
                        continue;
                PARA_NOTICE_LOG("initializing %s audio file selector\n",
-                       dblist[i].name);
-               ret = dblist[i].init(&dblist[i]);
+                       selectors[i].name);
+               ret = selectors[i].init(&selectors[i]);
                if (ret < 0) {
                        PARA_WARNING_LOG("%s", PARA_STRERROR(-ret));
                        break;
                }
-               mmd->dbt_num = i;
+               mmd->selector_num = i;
                return;
        }
        PARA_WARNING_LOG("%s", "falling back to the random selector\n");
 random:
-       mmd->dbt_num = 0;
-       dblist[0].init(&dblist[0]); /* always successful */
+       mmd->selector_num = 0;
+       selectors[0].init(&selectors[0]); /* always successful */
 }
 
 static unsigned init_network(void)
@@ -317,7 +315,7 @@ static void init_random_seed(void)
        int fd, ret = -1, len = sizeof(unsigned int);
        unsigned int seed;
 
-       fd = open("/dev/random", O_RDONLY);
+       fd = open("/dev/urandom", O_RDONLY);
        if (fd < 0)
                goto out;
        ret = -2;
@@ -343,7 +341,7 @@ static unsigned do_inits(int argc, char **argv)
        init_random_seed();
        /* parse command line options */
        cmdline_parser(argc, argv, &conf);
-       para_drop_privileges(conf.user_arg);
+       para_drop_privileges(conf.user_arg, conf.group_arg);
        /* parse config file, open log and set defaults */
        parse_config(0);
        log_welcome("para_server", conf.loglevel_arg);
@@ -352,7 +350,7 @@ static unsigned do_inits(int argc, char **argv)
        /* become daemon */
        if (conf.daemon_given)
                daemon_init();
-       init_dbtool();
+       init_selector();
        PARA_NOTICE_LOG("%s", "initializing audio file sender\n");
        /* audio file sender */
        afs_init();
@@ -370,21 +368,21 @@ static unsigned do_inits(int argc, char **argv)
        return sockfd;
 }
 
-static void handle_dbt_change(void)
+static void change_selector(void)
 {
-       int ret, old = mmd->dbt_num, new = mmd->dbt_change;
+       int ret, old = mmd->selector_num, new = mmd->selector_change;
 
-       dblist[old].shutdown();
-       ret = dblist[new].init(&dblist[new]);
-       mmd->dbt_change = -1; /* reset */
+       selectors[old].shutdown();
+       ret = selectors[new].init(&selectors[new]);
+       mmd->selector_change = -1; /* reset */
        if (ret >= 0) {
-               mmd->dbt_num = new;
+               mmd->selector_num = new;
                return;
        }
        /* init failed */
        PARA_ERROR_LOG("%s -- switching to the random selector\n", PARA_STRERROR(-ret));
-       dblist[0].init(&dblist[0]);
-       mmd->dbt_num = 0;
+       selectors[0].init(&selectors[0]);
+       mmd->selector_num = 0;
 }
 
 /*
@@ -396,8 +394,8 @@ static void handle_sighup(void)
        close_log(logfile); /* gets reopened if necessary by parse_config */
        logfile = NULL;
        parse_config(1); /* reopens log */
-       mmd->dbt_change = mmd->dbt_num; /* do not change selector */
-       handle_dbt_change(); /* reload selector */
+       mmd->selector_change = mmd->selector_num; /* do not change selector.. */
+       change_selector(); /* .. just reload */
 }
 
 static void status_refresh(void)
@@ -431,7 +429,7 @@ int main(int argc, char *argv[])
        /* listen on sock_fd, new connection on new_fd */
        int sockfd, new_fd;
        struct sockaddr_in their_addr;
-       int err, i, max_fileno, ret;
+       int i, max_fileno, ret;
        pid_t chld_pid;
        fd_set rfds, wfds;
        struct timeval *timeout;
@@ -439,14 +437,12 @@ int main(int argc, char *argv[])
        valid_fd_012();
        sockfd = do_inits(argc, argv);
 repeat:
-       /* check socket and signal pipe in any case */
        FD_ZERO(&rfds);
        FD_ZERO(&wfds);
-       FD_SET(sockfd, &rfds);
-       max_fileno = sockfd;
-       FD_SET(signal_pipe, &rfds);
-       max_fileno = MAX(max_fileno, signal_pipe);
-
+       max_fileno = -1;
+       /* check socket and signal pipe in any case */
+       para_fd_set(sockfd, &rfds, &max_fileno);
+       para_fd_set(signal_pipe, &rfds, &max_fileno);
        timeout = afs_preselect();
        status_refresh();
        for (i = 0; senders[i].name; i++) {
@@ -454,44 +450,30 @@ repeat:
                        continue;
                if (!senders[i].pre_select)
                        continue;
-               senders[i].pre_select(mmd->audio_format >= 0?
-                       &afl[mmd->audio_format] : NULL,
-                       &max_fileno,
-                       &rfds, &wfds);
+               senders[i].pre_select( &max_fileno, &rfds, &wfds);
        }
-       if (dblist[mmd->dbt_num].pre_select) {
-               ret = dblist[mmd->dbt_num].pre_select(&rfds, &wfds);
-               max_fileno = MAX(max_fileno, ret);
+       if (selectors[mmd->selector_num].pre_select) {
+               ret = selectors[mmd->selector_num].pre_select(&rfds, &wfds);
+               max_fileno = PARA_MAX(max_fileno, ret);
        }
        mmd_unlock();
-//     PARA_DEBUG_LOG("%s: select (max = %i)\n", __func__, max_fileno);
-       ret = select(max_fileno + 1, &rfds, &wfds, NULL, timeout);
-       err = errno;
-       //PARA_DEBUG_LOG("%s: select returned  %i\n", __func__, ret);
+       ret = para_select(max_fileno + 1, &rfds, &wfds, timeout);
        mmd_lock();
-       if (mmd->dbt_change >= 0)
-               handle_dbt_change();
-       if (dblist[mmd->dbt_num].post_select)
-               dblist[mmd->dbt_num].post_select(&rfds, &wfds);
-       if (ret < 0 && err == EINTR)
-               goto repeat;
-       if (ret < 0) {
-               PARA_CRIT_LOG("select error (%s)\n", strerror(err));
+       if (mmd->selector_change >= 0)
+               change_selector();
+       if (selectors[mmd->selector_num].post_select)
+               selectors[mmd->selector_num].post_select(&rfds, &wfds);
+       if (ret < 0)
                goto repeat;
-       }
        for (i = 0; senders[i].name; i++) {
                if (senders[i].status != SENDER_ON)
                        continue;
                if (!senders[i].post_select)
                        continue;
-               senders[i].post_select(mmd->audio_format >= 0?
-                       &afl[mmd->audio_format] : NULL,
-                       &rfds, &wfds);
-       }
-       if (!ret) {
-               afs_send_chunk();
-               status_refresh();
+               senders[i].post_select(&rfds, &wfds);
        }
+       afs_send_chunk();
+       status_refresh();
        if (FD_ISSET(signal_pipe, &rfds)) {
                int sig;
                sig = para_next_signal();
@@ -507,7 +489,7 @@ repeat:
                case SIGTERM:
                        PARA_EMERG_LOG("terminating on signal %d\n", sig);
                        kill(0, SIGTERM);
-                       dblist[mmd->dbt_num].shutdown();
+                       selectors[mmd->selector_num].shutdown();
                        mutex_destroy(mmd_mutex);
                        shm_detach(mmd);
                        shm_destroy(mmd_shm_id);