Merge branch 'refs/heads/t/clean_server_exit'

[paraslash.git] / aft.c

diff --git a/aft.c b/aft.c
index 1679a5495131117f440a5ee610f677ff14cc5612..15769d55498b9b5ad6aa11f86efdebde31afc417 100644 (file)
--- a/aft.c
+++ b/aft.c
@@ -1,8 +1,4 @@
-/*
- * Copyright (C) 2007 Andre Noll <maan@tuebingen.mpg.de>
- *
- * Licensed under the GPL v2. For licencing details see COPYING.
- */
+/* Copyright (C) 2007 Andre Noll <maan@tuebingen.mpg.de>, see file COPYING. */
 
 /** \file aft.c Audio file table functions. */
 
@@ -26,9 +22,30 @@
 #include "sideband.h"
 #include "command.h"
 
-static struct osl_table *audio_file_table;
+/* Data about one audio file. Needed for ls and stat output. */
+struct ls_data {
+       /* Usual audio format handler information. */
+       struct afh_info afhi;
+       /* Audio file selector information. */
+       struct afs_info afsi;
+       /* The full path of the audio file. */
+       char *path;
+       /* The score value (if -a was given). */
+       long score;
+       /* The hash value of the audio file data. */
+       unsigned char *hash;
+};
+
+/*
+ * The internal state of the audio file table is described by the following
+ * variables which are private to aft.c.
+ */
+static struct osl_table *audio_file_table; /* NULL if table not open */
+static struct osl_row *current_aft_row; /* NULL if no audio file open */
+
 static char *status_items;
 static char *parser_friendly_status_items;
+static struct ls_data status_item_ls_data;
 
 /** The different sorting methods of the ls command. */
 enum ls_sorting_method {
@@ -74,20 +91,6 @@ enum ls_listing_mode {
        LS_MODE_PARSER,
 };
 
-/* Data about one audio file. Needed for ls and stat output. */
-struct ls_data {
-       /* Usual audio format handler information. */
-       struct afh_info afhi;
-       /* Audio file selector information. */
-       struct afs_info afsi;
-       /* The full path of the audio file. */
-       char *path;
-       /* The score value (if -a was given). */
-       long score;
-       /* The hash value of the audio file data. */
-       unsigned char *hash;
-};
-
 /**
  * The size of the individual output fields of the ls command.
  *
@@ -958,9 +961,6 @@ out:
        return ret;
 }
 
-static struct ls_data status_item_ls_data;
-static struct osl_row *current_aft_row;
-
 static void make_inode_status_items(struct para_buffer *pb)
 {
        struct stat statbuf = {.st_size = 0};
@@ -982,6 +982,12 @@ out:
        WRITE_STATUS_ITEM(pb, SI_file_size, "%ld\n", statbuf.st_size / 1024);
 }
 
+void free_status_items(void)
+{
+       freep(&status_items);
+       freep(&parser_friendly_status_items);
+}
+
 static int make_status_items(void)
 {
        const struct lls_command *cmd = SERVER_CMD_CMD_PTR(LS);
@@ -991,6 +997,7 @@ static int make_status_items(void)
        time_t current_time;
        int ret;
 
+       free_status_items();
        if (!status_item_ls_data.path) /* no audio file open */
                return 0;
        ret = lls_parse(ARRAY_SIZE(argv), argv, cmd, &opts.lpr, NULL);
@@ -1000,23 +1007,20 @@ static int make_status_items(void)
        if (ret < 0)
                goto out;
        make_inode_status_items(&pb);
-       free(status_items);
        status_items = pb.buf;
 
        memset(&pb, 0, sizeof(pb));
        pb.max_size = shm_get_shmmax() - 1;
        pb.flags = PBF_SIZE_PREFIX;
        ret = print_list_item(&status_item_ls_data, &opts, &pb, current_time);
-       if (ret < 0) {
-               free(status_items);
-               status_items = NULL;
-               return ret;
-       }
+       if (ret < 0)
+               goto out;
        make_inode_status_items(&pb);
-       free(parser_friendly_status_items);
        parser_friendly_status_items = pb.buf;
        ret = 1;
 out:
+       if (ret < 0)
+               free_status_items();
        lls_free_parse_result(opts.lpr, cmd);
        return ret;
 }
@@ -1594,7 +1598,7 @@ ACTION:   Table modifications to be done by the callback.
 +----+----+---+------+---------------------------------------------------+
 | N  |  N | Y |  Y   | (new file) create new entry (force has no effect)
 +----+----+---+------+---------------------------------------------------+
-|  N |  N | N |  Y   | (new file) create new entry
+| N  |  N | N |  Y   | (new file) create new entry
 +----+----+---+------+---------------------------------------------------+
 
 Notes:
@@ -2581,6 +2585,7 @@ static int aft_event_handler(enum afs_events event, struct para_buffer *pb,
                 * every time.
                 */
                make_status_items();
+               return 0;
        } default:
                return 0;
        }