filter.c: Handle filter errors gracefully.
[paraslash.git] / afs.c
diff --git a/afs.c b/afs.c
index 03a8d4b..58b04a8 100644 (file)
--- a/afs.c
+++ b/afs.c
@@ -75,6 +75,7 @@ struct command_task {
        struct task task;
 };
 
+extern int mmd_mutex;
 extern struct misc_meta_data *mmd;
 
 static int server_socket;
@@ -499,7 +500,7 @@ static int pass_afd(int fd, char *buf, size_t size)
  *
  * \sa open_and_update_audio_file().
  */
-int open_next_audio_file(void)
+static int open_next_audio_file(void)
 {
        struct osl_row *aft_row;
        struct audio_file_data afd;
@@ -571,15 +572,15 @@ static int activate_mood_or_playlist(char *arg, int *num_admissible)
                free(current_mop);
                if (arg) {
                        current_mop = para_strdup(arg);
-                       mmd_lock();
+                       mutex_lock(mmd_mutex);
                        strncpy(mmd->afs_mode_string, arg,
                                sizeof(mmd->afs_mode_string));
                        mmd->afs_mode_string[sizeof(mmd->afs_mode_string) - 1] = '\0';
-                       mmd_unlock();
+                       mutex_unlock(mmd_mutex);
                } else {
-                       mmd_lock();
+                       mutex_lock(mmd_mutex);
                        strcpy(mmd->afs_mode_string, "dummy");
-                       mmd_unlock();
+                       mutex_unlock(mmd_mutex);
                        current_mop = NULL;
                }
        }
@@ -747,12 +748,6 @@ static int open_afs_tables(void)
        return ret;
 }
 
-static void unregister_tasks(void)
-{
-       unregister_task(&command_task_struct.task);
-       unregister_task(&signal_task_struct.task);
-}
-
 static void signal_pre_select(struct sched *s, struct task *t)
 {
        struct signal_task *st = container_of(t, struct signal_task, task);
@@ -900,28 +895,24 @@ static int call_callback(int fd, int query_shmid)
        return 1;
 }
 
-static void execute_server_command(void)
+static int execute_server_command(void)
 {
        char buf[8];
        int ret = recv_bin_buffer(server_socket, buf, sizeof(buf) - 1);
 
        if (ret <= 0) {
-               if (ret < 0)
-                       PARA_ERROR_LOG("%s\n", para_strerror(-ret));
-               return;
+               if (!ret)
+                       ret = -ERRNO_TO_PARA_ERROR(ECONNRESET);
+               goto err;
        }
        buf[ret] = '\0';
        PARA_DEBUG_LOG("received: %s\n", buf);
-       if (!strcmp(buf, "new")) {
-               ret = open_next_audio_file();
-               if (ret < 0) {
-                       PARA_EMERG_LOG("%s\n", para_strerror(-ret));
-                       unregister_tasks();
-               }
-               return;
-       }
-       PARA_ERROR_LOG("unknown command\n");
-
+       ret = -E_BAD_CMD;
+       if (strcmp(buf, "new"))
+               goto err;
+       ret = open_next_audio_file();
+err:
+       return ret;
 }
 
 static void execute_afs_command(int fd, uint32_t expected_cookie)
@@ -966,8 +957,15 @@ static void command_post_select(struct sched *s, struct task *t)
        struct sockaddr_un unix_addr;
        struct afs_client *client, *tmp;
        int fd, ret;
-       if (FD_ISSET(server_socket, &s->rfds))
-               execute_server_command();
+
+       if (FD_ISSET(server_socket, &s->rfds)) {
+               ret = execute_server_command();
+               if (ret < 0) {
+                       PARA_EMERG_LOG("%s\n", para_strerror(-ret));
+                       sched_shutdown();
+                       return;
+               }
+       }
 
        /* Check the list of connected clients. */
        list_for_each_entry_safe(client, tmp, &afs_client_list, node) {
@@ -1025,7 +1023,7 @@ static void register_command_task(uint32_t cookie)
  */
 __noreturn void afs_init(uint32_t cookie, int socket_fd)
 {
-       struct sched s;
+       static struct sched s;
        int i, ret;
 
        register_signal_task();