/*
- * Copyright (C) 2007 Andre Noll <maan@systemlinux.org>
+ * Copyright (C) 2007-2012 Andre Noll <maan@systemlinux.org>
*
* Licensed under the GPL v2. For licencing details see COPYING.
*/
/** \file score.c Scoring functions to determine the audio file streaming order. */
+#include <regex.h>
+#include <osl.h>
+
#include "para.h"
#include "error.h"
+#include "string.h"
#include "afh.h"
#include "afs.h"
#include "list.h"
-#include "string.h"
static struct osl_table *score_table;
* \param obj2 Pointer to the second score object.
*
* This function first compares the score values as usual integers. If they compare as
- * equal, the addresss of \a obj1 and \a obj2 are compared. So this compare function
+ * equal, the address of \a obj1 and \a obj2 are compared. So this compare function
* returns zero if and only if \a obj1 and \a obj2 point to the same memory area.
*
* \sa osl_compare_function.
*/
static int score_compare(const struct osl_object *obj1, const struct osl_object *obj2)
{
- int d1 = *(int*)obj1->data;
- int d2 = *(int*)obj2->data;
+ long d1 = *(long *)obj1->data;
+ long d2 = *(long *)obj2->data;
int ret = NUM_COMPARE(d2, d1);
if (ret)
}
/**
- * The score table consists of two colums: The \a aft_row column contains
+ * The score table consists of two columns: The \a aft_row column contains
* pointers to the rows of the audio file table, and the score column contains
* the current score of the audio file associated with that row.
*/
static struct osl_column_description score_cols[] = {
[SCORECOL_AFT_ROW] = {
.storage_type = OSL_NO_STORAGE,
- .storage_flags = OSL_RBTREE | OSL_FIXED_SIZE | OSL_UNIQUE,
+ .storage_flags = OSL_RBTREE | OSL_FIXED_SIZE | OSL_UNIQUE | OSL_DONT_FREE,
.name = "aft_row",
.compare_function = ptr_compare,
.data_size = sizeof(void *)
*/
int get_num_admissible_files(unsigned *num)
{
- return osl_get_num_rows(score_table, num);
+ return osl(osl_get_num_rows(score_table, num));
}
/**
static int get_score_of_row(void *score_row, long *score)
{
struct osl_object obj;
- int ret = osl_get_object(score_table, score_row, SCORECOL_SCORE, &obj);
+ int ret = osl(osl_get_object(score_table, score_row, SCORECOL_SCORE, &obj));
if (ret >= 0)
*score = *(long *)obj.data;
assert(aft_row);
size = score_table_desc.column_descriptions[SCORECOL_AFT_ROW].data_size;
- score_objs[SCORECOL_AFT_ROW].data = para_malloc(size);
+ score_objs[SCORECOL_AFT_ROW].data = (struct osl_row *)aft_row;
score_objs[SCORECOL_AFT_ROW].size = size;
- *(const void **)(score_objs[SCORECOL_AFT_ROW].data) = aft_row;
size = score_table_desc.column_descriptions[SCORECOL_SCORE].data_size;
score_objs[SCORECOL_SCORE].data = para_malloc(size);
score_objs[SCORECOL_SCORE].size = size;
- *(int *)(score_objs[SCORECOL_SCORE].data) = score;
+ *(long *)(score_objs[SCORECOL_SCORE].data) = score;
// PARA_DEBUG_LOG("adding %p\n", *(void **) (score_objs[SCORECOL_AFT_ROW].data));
- ret = osl_add_row(score_table, score_objs);
+ ret = osl(osl_add_row(score_table, score_objs));
if (ret < 0) {
- PARA_ERROR_LOG("failed to add row: %d\n", ret);
- free(score_objs[SCORECOL_AFT_ROW].data);
+ PARA_ERROR_LOG("%s\n", para_strerror(-ret));
free(score_objs[SCORECOL_SCORE].data);
}
return ret;
static int get_nth_score(unsigned n, long *score)
{
struct osl_row *row;
- int ret = osl_get_nth_row(score_table, SCORECOL_SCORE, n, &row);
+ int ret = osl(osl_get_nth_row(score_table, SCORECOL_SCORE, n, &row));
if (ret < 0)
return ret;
* \param aft_row Determines the audio file to change.
* \param percent The position to re-insert the audio file.
*
- * The percent paramenter must be between \p 0 and 100 and. A value of zero
+ * The percent parameter must be between \p 0 and 100 and. A value of zero
* means to re-insert the audio file into the score table with a score lower
* than any other admissible file.
*
struct osl_row *row;
long new_score;
unsigned n, new_pos;
- struct osl_object obj = {.data = &aft_row, .size = sizeof(void **)};
- int ret = osl_get_row(score_table, SCORECOL_AFT_ROW, &obj, &row);
+ struct osl_object obj = {.data = (struct osl_row *)aft_row,
+ .size = sizeof(aft_row)};
+ int ret = osl(osl_get_row(score_table, SCORECOL_AFT_ROW, &obj, &row));
+ if (ret == -OSL_ERRNO_TO_PARA_ERROR(E_OSL_RB_KEY_NOT_FOUND)) /* not an error */
+ return 1;
if (ret < 0)
return ret;
ret = get_num_admissible_files(&n);
obj.size = sizeof(long);
obj.data = para_malloc(obj.size);
*(long *)obj.data = new_score;
- PARA_DEBUG_LOG("new score: %ld, position: %u/%u\n", new_score,
- new_pos, n);
- return osl_update_object(score_table, row, SCORECOL_SCORE, &obj);
+ PARA_DEBUG_LOG("new score: %ld, rank %u/%u\n", new_score, new_pos, n);
+ return osl(osl_update_object(score_table, row, SCORECOL_SCORE, &obj));
}
/**
if (ret < 0)
return ret;
- ret = osl_get_object(score_table, score_row, SCORECOL_AFT_ROW, &obj);
+ ret = osl(osl_get_object(score_table, score_row, SCORECOL_AFT_ROW, &obj));
if (ret < 0)
return ret;
- *aft_row = *(void **)obj.data;
+ *aft_row = obj.data;
return 1;
}
static int get_score_row_from_aft_row(const struct osl_row *aft_row,
struct osl_row **score_row)
{
- struct osl_object obj = {.data = &aft_row, .size = sizeof(void **)};
- return osl_get_row(score_table, SCORECOL_AFT_ROW, &obj, score_row);
-
+ struct osl_object obj = {.data = (struct osl_row *)aft_row,
+ .size = sizeof(aft_row)};
+ return osl(osl_get_row(score_table, SCORECOL_AFT_ROW, &obj, score_row));
}
/**
*/
int admissible_file_loop(void *data, osl_rbtree_loop_func *func)
{
- return osl_rbtree_loop(score_table, SCORECOL_SCORE, data, func);
+ return osl(osl_rbtree_loop(score_table, SCORECOL_SCORE, data, func));
}
/**
*/
int admissible_file_loop_reverse(void *data, osl_rbtree_loop_func *func)
{
- return osl_rbtree_loop_reverse(score_table, SCORECOL_SCORE, data, func);
+ return osl(osl_rbtree_loop_reverse(score_table, SCORECOL_SCORE, data, func));
}
/**
{
struct osl_row *row;
struct osl_object obj;
- int ret = osl_rbtree_last_row(score_table, SCORECOL_SCORE, &row);
+ int ret = osl(osl_rbtree_last_row(score_table, SCORECOL_SCORE, &row));
if (ret < 0)
return ret;
- ret = osl_get_object(score_table, row, SCORECOL_AFT_ROW, &obj);
+ ret = osl(osl_get_object(score_table, row, SCORECOL_AFT_ROW, &obj));
if (ret < 0)
return ret;
- *aft_row = *(void **)obj.data;
+ *aft_row = obj.data;
return get_score_of_row(row, score);
}
if (ret < 0)
return ret;
- return osl_del_row(score_table, score_row);
+ return osl(osl_del_row(score_table, score_row));
}
/**
* Find out whether an audio file is contained in the score table.
*
* \param aft_row The row of the audio file table.
+ * \param rank Result pointer
*
* \return Positive, if \a aft_row belongs to the audio file table,
- * zero if not, negative on errors.
+ * zero if not, negative on errors. If \a aft_row was found, and \a rank
+ * is not \p NULL, the rank of \a aft_row is returned in \a rank.
*/
-int row_belongs_to_score_table(const struct osl_row *aft_row)
+int row_belongs_to_score_table(const struct osl_row *aft_row, unsigned *rank)
{
struct osl_row *score_row;
int ret = get_score_row_from_aft_row(aft_row, &score_row);
- if (ret >= 0)
- return 1;
- if (ret == -E_RB_KEY_NOT_FOUND)
+
+ if (ret == -OSL_ERRNO_TO_PARA_ERROR(E_OSL_RB_KEY_NOT_FOUND))
return 0;
- return ret;
+ if (ret < 0)
+ return ret;
+ if (!rank)
+ return 1;
+ ret = osl(osl_get_rank(score_table, score_row, SCORECOL_SCORE, rank));
+ if (ret < 0)
+ return ret;
+ return 1;
+}
+
+/* Close the score table. */
+static void score_close(void)
+{
+ osl_close_table(score_table, OSL_FREE_VOLATILE);
+ score_table = NULL;
}
/**
- * Close the score table.
+ * Open the score table.
*
- * \param flags Options passed to osl_close_table().
+ * \param dir Unused.
*
- * \sa score_init().
+ * \return The return value of the underlying call to osl_open_table().
*/
-void score_shutdown(enum osl_close_flags flags)
+static int score_open(__a_unused const char *dir)
{
- osl_close_table(score_table, flags | OSL_FREE_VOLATILE);
- score_table = NULL;
+ score_table_desc.dir = NULL; /* this table has only volatile columns */
+ return osl(osl_open_table(&score_table_desc, &score_table));
}
/**
- * Init the scoring subsystem.
- *
- * \param ti Gets filled in by the function.
- * \param db The database directory.
+ * Remove all entries from the score table, but keep the table open.
*
- * \return The return value of the underlying call to osl_open_table().
+ * \return Standard.
+ */
+int clear_score_table(void)
+{
+ score_close();
+ return score_open(NULL);
+}
+
+static int score_event_handler(__a_unused enum afs_events event,
+ __a_unused struct para_buffer *pb, __a_unused void *data)
+{
+ return 1;
+}
+
+/**
+ * Initialize the scoring subsystem.
*
- * \sa score_shutdown().
+ * \param t The members of \a t are filled in by the function.
*/
-int score_init(struct table_info *ti, const char *db)
+void score_init(struct afs_table *t)
{
- score_table_desc.dir = db;
- ti->desc = &score_table_desc;
- ti->flags = TBLFLAG_SKIP_CREATE;
- return osl_open_table(ti->desc, &score_table);
+ t->name = score_table_desc.name;
+ t->open = score_open;
+ t->close = score_close;
+ t->event_handler = score_event_handler;
}
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