mood.c: Remove unused int_log2().

[paraslash.git] / mood.c

diff --git a/mood.c b/mood.c
index d9ae48bf967e61b0c4c0ca499d75f0b47eb47b96..833820a8b2ff8f13108102f41f1d9578bd564c17 100644 (file)
--- a/mood.c
+++ b/mood.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2007-2011 Andre Noll <maan@systemlinux.org>
+ * Copyright (C) 2007-2013 Andre Noll <maan@systemlinux.org>
  *
  * Licensed under the GPL v2. For licencing details see COPYING.
  */
@@ -17,6 +17,7 @@
 #include "list.h"
 #include "ipc.h"
 #include "mm.h"
+#include "sideband.h"
 
 /**
  * Contains statistical data of the currently admissible audio files.
@@ -76,6 +77,10 @@ struct mood {
        struct list_head score_list;
 };
 
+/*
+ * If current_mood is NULL then no mood is currently open. If
+ * current_mood->name is NULL, the dummy mood is currently open
+ */
 static struct mood *current_mood;
 
 /**
@@ -107,12 +112,16 @@ __a_const static uint64_t int_sqrt(uint64_t x)
        return res;
 }
 
-/* returns 1 if row matches score item, 0 if not. */
-static int get_item_score(struct mood_item *item, const struct afs_info *afsi,
+/*
+ * Returns true if row matches, false if it does not match. In any case score
+ * and score_arg_sum are set/increased accordingly.
+ */
+static bool get_item_score(struct mood_item *item, const struct afs_info *afsi,
                const struct afh_info *afhi, const char *path, long *score,
                long *score_arg_sum)
 {
-       int ret, match = 1;
+       int ret;
+       bool match = true;
 
        *score_arg_sum += item->random_score? 100 : PARA_ABS(item->score_arg);
        ret = 100;
@@ -120,7 +129,7 @@ static int get_item_score(struct mood_item *item, const struct afs_info *afsi,
                ret = item->method->score_function(path, afsi, afhi,
                        item->parser_data);
                if ((ret < 0 && !item->logical_not) || (ret >= 0 && item->logical_not))
-                       match = 0; /* no match */
+                       match = false;
        }
        if (item->random_score)
                *score = PARA_ABS(ret) * para_random(100);
@@ -134,7 +143,8 @@ static int compute_mood_score(const struct osl_row *aft_row, struct mood *m,
                long *result)
 {
        struct mood_item *item;
-       int ret, match = 0;
+       int ret;
+       bool match;
        long score_arg_sum = 0, score = 0, item_score;
        struct afs_info afsi;
        struct afh_info afhi;
@@ -153,27 +163,29 @@ static int compute_mood_score(const struct osl_row *aft_row, struct mood *m,
                return ret;
        /* reject audio file if it matches any entry in the deny list */
        list_for_each_entry(item, &m->deny_list, mood_item_node) {
-               ret = get_item_score(item, &afsi, &afhi, path, &item_score,
+               match = get_item_score(item, &afsi, &afhi, path, &item_score,
                        &score_arg_sum);
-               if (ret > 0) /* not admissible */
+               if (match) /* not admissible */
                        return 0;
                score += item_score;
        }
+       match = false;
        list_for_each_entry(item, &m->accept_list, mood_item_node) {
                ret = get_item_score(item, &afsi, &afhi, path, &item_score,
                        &score_arg_sum);
                if (ret == 0)
                        continue;
-               match = 1;
+               match = true;
                score += item_score;
        }
        /* reject if there is no matching entry in the accept list */
        if (!match && !list_empty(&m->accept_list))
                return 0;
        list_for_each_entry(item, &m->score_list, mood_item_node) {
-               ret = get_item_score(item, &afsi, &afhi, path, &item_score,
+               match = get_item_score(item, &afsi, &afhi, path, &item_score,
                        &score_arg_sum);
-               score += item_score;
+               if (match)
+                       score += item_score;
        }
        if (score_arg_sum)
                score /= score_arg_sum;
@@ -210,7 +222,8 @@ static void destroy_mood(struct mood *m)
 static struct mood *alloc_new_mood(const char *name)
 {
        struct mood *m = para_calloc(sizeof(struct mood));
-       m->name = para_strdup(name);
+       if (name)
+               m->name = para_strdup(name);
        INIT_LIST_HEAD(&m->accept_list);
        INIT_LIST_HEAD(&m->deny_list);
        INIT_LIST_HEAD(&m->score_list);
@@ -364,14 +377,16 @@ static int load_mood(const struct osl_row *mood_row, struct mood **m)
        char *mood_name;
        struct osl_object mood_def;
        struct mood_line_parser_data mlpd = {.line_num = 0};
-       int ret = mood_get_name_and_def_by_row(mood_row, &mood_name, &mood_def);
+       int ret;
 
+       *m = NULL;
+       ret = mood_get_name_and_def_by_row(mood_row, &mood_name, &mood_def);
        if (ret < 0)
                return ret;
        if (!*mood_name)
                return -E_DUMMY_ROW;
        mlpd.m = alloc_new_mood(mood_name);
-       ret = for_each_line_ro(mood_def.data, mood_def.size,
+       ret = for_each_line(FELF_READ_ONLY, mood_def.data, mood_def.size,
                parse_mood_line, &mlpd);
        osl_close_disk_object(&mood_def);
        if (ret < 0) {
@@ -403,7 +418,7 @@ static int check_mood(struct osl_row *mood_row, void *data)
        ret = para_printf(pb, "checking mood %s...\n", mood_name);
        if (ret < 0)
                goto out;
-       ret = for_each_line_ro(mood_def.data, mood_def.size,
+       ret = for_each_line(FELF_READ_ONLY, mood_def.data, mood_def.size,
                parse_mood_line, &mlpd);
        if (ret < 0)
                para_printf(pb, "%s line %u: %s\n", mood_name, mlpd.line_num,
@@ -423,8 +438,11 @@ void mood_check_callback(int fd, __a_unused const struct osl_object *query)
 {
        struct para_buffer pb = {
                .max_size = shm_get_shmmax(),
-               .private_data = &fd,
-               .max_size_handler = pass_buffer_as_shm
+               .private_data = &(struct afs_max_size_handler_data) {
+                       .fd = fd,
+                       .band = SBD_OUTPUT
+               },
+               .max_size_handler = afs_max_size_handler
        };
 
        int ret = para_printf(&pb, "checking moods...\n");
@@ -433,23 +451,10 @@ void mood_check_callback(int fd, __a_unused const struct osl_object *query)
        osl_rbtree_loop(moods_table, BLOBCOL_ID, &pb,
                check_mood);
        if (pb.offset)
-               pass_buffer_as_shm(pb.buf, pb.offset, &fd);
+               pass_buffer_as_shm(fd, SBD_OUTPUT, pb.buf, pb.offset);
        free(pb.buf);
 }
 
-#if 0
-static unsigned int_log2(uint64_t x)
-{
-       unsigned res = 0;
-
-       while (x) {
-               x /= 2;
-               res++;
-       }
-       return res;
-}
-#endif
-
 static int64_t normalized_value(int64_t x, int64_t n, int64_t sum, int64_t qd)
 {
        if (!n || !qd)
@@ -837,9 +842,9 @@ int change_current_mood(char *mood_name)
                        return ret;
                close_current_mood();
                current_mood = m;
-       } else {
+       } else { /* load dummy mood */
                close_current_mood();
-               current_mood = alloc_new_mood("dummy");
+               current_mood = alloc_new_mood(NULL);
        }
        aa.m = current_mood;
        PARA_NOTICE_LOG("computing statistics of admissible files\n");
@@ -854,7 +859,7 @@ int change_current_mood(char *mood_name)
                if (ret < 0)
                        goto out;
        }
-       PARA_NOTICE_LOG("loaded mood %s\n", current_mood->name);
+       PARA_NOTICE_LOG("loaded mood %s\n", mood_name? mood_name : "(dummy)");
        ret = statistics.num;
 out:
        free(aa.array);
@@ -900,6 +905,8 @@ static int reload_current_mood(void)
  * This function performs actions required due to the occurrence of the given
  * event. Possible actions include reload of the current mood and update of the
  * score of an audio file.
+ *
+ * \return Standard.
  */
 int moods_event_handler(enum afs_events event, __a_unused struct para_buffer *pb,
                void *data)