/*
- * Copyright (C) 2007 Andre Noll <maan@systemlinux.org>
+ * Copyright (C) 2007-2009 Andre Noll <maan@systemlinux.org>
*
* Licensed under the GPL v2. For licencing details see COPYING.
*/
/** \file mood.c Paraslash's mood handling functions. */
#include <fnmatch.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"
+#include "ipc.h"
/**
* Contains statistical data of the currently admissible audio files.
/**
* Assign scores according to a mood_method.
*
- * Each mood_method has its own mood_score_function. The first parameter passed
- * to that function is a pointer to a row of the audio file table. It
- * determines the audio file for which a score is to be assigned. The second
- * argument depends on the mood method this function is used for. It usually is
- * the argument given at the end of a mood line.
+ * Each mood_method has its own mood_score_function. The first three parameters
+ * passed to that function are informations about the audio file whose score is
+ * to be computed. The data argument depends on the mood method this function
+ * is used for. It usually is the argument given at the end of a mood line.
*
* Mood score functions must return values between -100 and +100 inclusively.
* Boolean score functions should always return either -100 or +100.
*
* \sa struct mood_method, mood_parser.
*/
-typedef int mood_score_function(const struct osl_row*, void *);
+typedef int mood_score_function(const char *path, const struct afs_info *afsi,
+ const struct afh_info *afhi, const void *data);
/**
* Pre-process a mood line.
* Used for scoring and to determine whether a file is admissible.
*/
struct mood_method {
- /* The name of the method. */
+ /** The name of the method. */
const char *name;
/** Pointer to the mood parser. */
mood_parser *parser;
return res;
}
-static int mm_played_rarely_score_function(const struct osl_row *row,
- __a_unused void *ignored)
+static int mm_no_attributes_set_parser(const char *arg, __a_unused void **ignored)
+{
+ if (arg && *arg)
+ PARA_WARNING_LOG("ignored junk at eol: %s\n", arg);
+ return 1;
+}
+
+static int mm_no_attributes_set_score_function(__a_unused const char *path,
+ const struct afs_info *afsi,
+ __a_unused const struct afh_info *afhi,
+ __a_unused const void *data)
+{
+ if (!afsi->attributes)
+ return 100;
+ return -100;
+}
+
+static int mm_played_rarely_score_function(__a_unused const char *path,
+ const struct afs_info *afsi,
+ __a_unused const struct afh_info *afhi,
+ __a_unused const void *data)
{
- struct afs_info afsi;
unsigned num;
- int ret = get_afsi_of_row(row, &afsi);
+ int ret = get_num_admissible_files(&num);
if (ret < 0)
return 0;
- ret = get_num_admissible_files(&num);
- if (ret < 0)
- return 0;
- if (statistics.num_played_sum - num * afsi.num_played
+ if (statistics.num_played_sum - num * afsi->num_played
> int_sqrt(statistics.num_played_qd * num))
return 100;
return -100;
static int mm_played_rarely_parser(const char *arg, __a_unused void **ignored)
{
- if (*arg)
+ if (arg && *arg)
PARA_WARNING_LOG("ignored junk at eol: %s\n", arg);
return 1;
}
-static int mm_name_like_score_function(const struct osl_row *row, void *data)
+static int mm_path_matches_score_function(const char *path,
+ __a_unused const struct afs_info *afsi,
+ __a_unused const struct afh_info *afhi,
+ const void *data)
{
- char *path;
- int ret = get_audio_file_path_of_row(row, &path);
-
- if (ret < 0)
- return 0;
- ret = fnmatch(data, path, 0);
- return ret? -100 : 100;
+ if (fnmatch(data, path, 0))
+ return -100;
+ return 100;
}
-static int mm_name_like_parser(const char *arg, void **data)
+static int mm_path_matches_parser(const char *arg, void **data)
{
*data = para_strdup(arg);
return 1;
}
-static void mm_name_like_cleanup(void *data)
+static void mm_path_matches_cleanup(void *data)
{
free(data);
}
return ret;
}
-static int mm_is_set_score_function(const struct osl_row *row, void *bitnum)
+static int mm_is_set_score_function(__a_unused const char *path,
+ __a_unused const struct afs_info *afsi,
+ __a_unused const struct afh_info *afhi,
+ const void *data)
{
- unsigned char *bn = bitnum;
- struct afs_info afsi;
- int ret = get_afsi_of_row(row, &afsi);
-
- if (ret < 0)
- return 0;
- if (afsi.attributes & (1ULL << *bn))
+ const unsigned char *bn = data;
+ if (afsi->attributes & (1ULL << *bn))
return 100;
return -100;
}
-/* returns 1 if row matches score item, -1 otherwise */
+/* returns 1 if row matches score item, negative otherwise */
static int add_item_score(const struct osl_row *row, struct mood_item *item, long *score,
long *score_arg_sum)
{
- int ret = 100;
+ struct afs_info afsi;
+ struct afh_info afhi;
+ char *path;
+ int ret;
*score_arg_sum += item->random_score? 100 : PARA_ABS(item->score_arg);
+ ret = 100;
if (item->method) {
- ret = item->method->score_function(row, item->parser_data);
+ ret = get_afsi_of_row(row, &afsi);
+ if (ret< 0)
+ return ret;
+ ret = get_afhi_of_row(row, &afhi);
+ if (ret< 0)
+ return ret;
+ ret = get_audio_file_path_of_row(row, &path);
+ if (ret< 0)
+ return ret;
+ ret = item->method->score_function(path, &afsi, &afhi,
+ item->parser_data);
if ((ret < 0 && !item->logical_not) || (ret >= 0 && item->logical_not))
return -1; /* no match */
}
list_for_each_entry(item, &m->accept_list, mood_item_node)
if (add_item_score(aft_row, item, &score, &score_arg_sum) > 0)
match = 1;
- if (list_empty(&m->accept_list))
- PARA_NOTICE_LOG("accrpt list empty\n");
/* reject if there is no matching entry in the accept list */
if (!match && !list_empty(&m->accept_list))
return -E_NOT_ADMISSIBLE;
return 1;
}
+#define DEFINE_MOOD_METHOD(_name) \
+.parser = mm_ ## _name ## _parser, \
+.score_function = mm_ ## _name ## _score_function, \
+.name = #_name
+
+#define DEFINE_MOOD_METHOD_WITH_CLEANUP(_name) \
+ DEFINE_MOOD_METHOD(_name), \
+ .cleanup = mm_ ## _name ## _cleanup
+
static const struct mood_method mood_methods[] = {
-{
- .parser = mm_played_rarely_parser,
- .score_function = mm_played_rarely_score_function,
- .name = "played_rarely"
-},
-{
- .parser = mm_is_set_parser,
- .score_function = mm_is_set_score_function,
- .name = "is_set"
-},
-{
- .parser = mm_name_like_parser,
- .score_function = mm_name_like_score_function,
- .cleanup = mm_name_like_cleanup,
- .name = "name_like"
-},
-{
- .parser = NULL
-}
+ {DEFINE_MOOD_METHOD(no_attributes_set)},
+ {DEFINE_MOOD_METHOD(played_rarely)},
+ {DEFINE_MOOD_METHOD(is_set)},
+ {DEFINE_MOOD_METHOD_WITH_CLEANUP(path_matches)},
+ {.parser = NULL}
};
static void cleanup_list_entry(struct mood_item *item)
ML_SCORE
};
+/** Data passed to the parser of a mood line. */
struct mood_line_parser_data {
+ /** The mood this mood line belongs to. */
struct mood *m;
+ /** The line number in the mood definition. */
unsigned line_num;
};
w++;
if (!*w)
goto out;
- if (!strcmp(*w, "with")) {
- w++;
- if (!*w)
- goto out;
- }
+ if (strcmp(*w, "with"))
+ goto check_for_if;
+ w++;
+ if (!*w)
+ goto out;
+ if (strcmp(*w, "score"))
+ goto out;
}
if (mlt == ML_SCORE || !strcmp(*w, "score")) {
ret = -E_MOOD_SYNTAX;
w++;
if (!*w)
goto out;
+check_for_if:
if (!strcmp(*w, "if")) {
ret = -E_MOOD_SYNTAX;
w++;
osl_close_disk_object(&mood_def);
if (ret < 0) {
PARA_ERROR_LOG("unable to load mood %s: %s\n", mlpd.m->name,
- PARA_STRERROR(-ret));
+ para_strerror(-ret));
destroy_mood(mlpd.m);
return ret;
}
- PARA_INFO_LOG("loaded mood %s\n", mlpd.m->name);
*m = mlpd.m;
return 1;
}
-/*
- * Calls load_mood() and reverts its error value: It returns -E_MOOD_LOADED
- * on _success_, and 1 on errors. This way the loop over all moods stops at the
- * first valid mood.
- */
-static int load_mood_loop_func(struct osl_row *mood_row, void *data)
-{
- struct mood **m = data;
- int ret = load_mood(mood_row, m);
- if (ret < 0) {
- if (ret != -E_DUMMY_ROW)
- PARA_NOTICE_LOG("invalid mood (%d), trying next mood\n", ret);
- return 1;
- }
- return -E_MOOD_LOADED;
-}
-
-static int load_first_available_mood(struct mood **m)
-{
- int ret = osl_rbtree_loop(moods_table, BLOBCOL_NAME, m,
- load_mood_loop_func);
- if (ret == -E_MOOD_LOADED) /* success */
- return 1;
- if (ret < 0)
- return ret; /* error */
- PARA_NOTICE_LOG("no valid mood found\n");
- return -E_NO_MOOD;
-}
-
static int check_mood(struct osl_row *mood_row, void *data)
{
struct para_buffer *pb = data;
int ret = mood_get_name_and_def_by_row(mood_row, &mood_name, &mood_def);
if (ret < 0) {
- para_printf(pb, "failed to get mood definition\n");
+ para_printf(pb, "failed to get mood definition: %s\n",
+ para_strerror(-ret));
return ret;
}
if (!*mood_name) /* ignore dummy row */
goto out;
- para_printf(pb, "checking mood %s...\n", mood_name);
+ 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,
parse_mood_line, &mlpd);
if (ret < 0)
para_printf(pb, "%s line %u: %s\n", mood_name, mlpd.line_num,
- PARA_STRERROR(-ret));
+ para_strerror(-ret));
out:
osl_close_disk_object(&mood_def);
- return 1;
+ return ret;
}
/**
* Check all moods for syntax errors.
*
+ * \param fd The afs socket.
* \param query Unused.
- * \param result: Contains check messages.
*/
-int mood_check_callback(__a_unused const struct osl_object *query,
- struct osl_object *result)
+void mood_check_callback(int fd, __a_unused const struct osl_object *query)
{
- struct para_buffer pb = {.buf = NULL};
+ struct para_buffer pb = {
+ .max_size = SHMMAX,
+ .private_data = &fd,
+ .max_size_handler = pass_buffer_as_shm
+ };
- para_printf(&pb, "checking moods...\n");
+ int ret = para_printf(&pb, "checking moods...\n");
+ if (ret < 0)
+ return;
osl_rbtree_loop(moods_table, BLOBCOL_ID, &pb,
check_mood);
- result->data = pb.buf;
- result->size = pb.size;
- return 1;
+ if (pb.offset)
+ pass_buffer_as_shm(pb.buf, pb.offset, &fd);
+ free(pb.buf);
}
#if 0
*
* \return Positive on success, negative on errors.
*
- * \sa score_delete(), mood_update_audio_file().
+ * \sa score_delete().
*/
-int mood_delete_audio_file(const struct osl_row *aft_row)
+static int mood_delete_audio_file(const struct osl_row *aft_row)
{
int ret;
- ret = row_belongs_to_score_table(aft_row);
+ ret = row_belongs_to_score_table(aft_row, NULL);
if (ret < 0)
return ret;
if (!ret) /* not admissible, nothing to do */
*
* \return Positive on success, negative on errors.
*/
-int mood_update_audio_file(const struct osl_row *aft_row, struct afs_info *old_afsi)
+static int mood_update_audio_file(const struct osl_row *aft_row,
+ struct afs_info *old_afsi)
{
long score, percent;
int ret, is_admissible, was_admissible = 0;
struct afs_info afsi;
+ unsigned rank;
if (!current_mood)
return 1; /* nothing to do */
- ret = row_belongs_to_score_table(aft_row);
+ ret = row_belongs_to_score_table(aft_row, &rank);
if (ret < 0)
return ret;
was_admissible = ret;
percent = 100;
else if (percent < 0)
percent = 0;
- PARA_DEBUG_LOG("re-inserting at %lu%%\n", percent);
+ PARA_DEBUG_LOG("moving from rank %u to %lu%%\n", rank, percent);
return score_update(aft_row, percent);
}
PARA_NOTICE_LOG("no admissible files\n");
return;
}
- PARA_NOTICE_LOG("last_played mean: %lli, last_played sigma: %llu\n",
+ PARA_INFO_LOG("last_played mean: %lli, last_played sigma: %llu\n",
(long long int)(statistics.last_played_sum / n),
(long long unsigned)int_sqrt(statistics.last_played_qd / n));
- PARA_NOTICE_LOG("num_played mean: %lli, num_played sigma: %llu\n",
+ PARA_INFO_LOG("num_played mean: %lli, num_played sigma: %llu\n",
(long long int)statistics.num_played_sum / n,
(long long unsigned)int_sqrt(statistics.num_played_qd / n));
}
+/**
+ * Close the current mood.
+ *
+ * Free all resources of the current mood which were allocated during
+ * mood_open().
+ */
+void close_current_mood(void)
+{
+ destroy_mood(current_mood);
+ current_mood = NULL;
+ memset(&statistics, 0, sizeof(statistics));
+}
+
+
/**
* Change the current mood.
*
* \param mood_name The name of the mood to open.
*
- * There are two special cases: If \a mood_name is \a NULL, load the
- * first available mood. If \a mood_name is the empty string "", load
- * the dummy mood that accepts every audio file and uses a scoring method
- * based only on the \a last_played information.
+ * If \a mood_name is \a NULL, load the dummy mood that accepts every audio file
+ * and uses a scoring method based only on the \a last_played information.
*
* If there is already an open mood, it will be closed first.
*
.array = NULL
};
- if (!mood_name) {
- struct mood *m;
- ret = load_first_available_mood(&m);
- if (ret < 0)
- return ret;
- destroy_mood(current_mood);
- current_mood = m;
- } else if (*mood_name) {
+ if (mood_name) {
struct mood *m;
struct osl_row *row;
struct osl_object obj = {
.data = mood_name,
.size = strlen(mood_name) + 1
};
- ret = osl_get_row(moods_table, BLOBCOL_NAME, &obj, &row);
+ ret = osl(osl_get_row(moods_table, BLOBCOL_NAME, &obj, &row));
if (ret < 0) {
PARA_NOTICE_LOG("no such mood: %s\n", mood_name);
return ret;
ret = load_mood(row, &m);
if (ret < 0)
return ret;
- destroy_mood(current_mood);
+ close_current_mood();
current_mood = m;
} else {
- destroy_mood(current_mood);
+ close_current_mood();
current_mood = alloc_new_mood("dummy");
}
aa.m = current_mood;
- PARA_NOTICE_LOG("loaded mood %s\n", current_mood->name);
- PARA_INFO_LOG("%s\n", "computing statistics of admissible files");
+ PARA_NOTICE_LOG("computing statistics of admissible files\n");
ret = audio_file_loop(&aa, add_if_admissible);
if (ret < 0)
return ret;
log_statistics();
- PARA_NOTICE_LOG("%d admissible files \n", statistics.num);
+ PARA_INFO_LOG("%d admissible files \n", statistics.num);
for (i = 0; i < statistics.num; i++) {
struct admissible_file_info *a = aa.array + i;
ret = add_to_score_table(a->aft_row, a->score);
if (ret < 0)
goto out;
}
- PARA_NOTICE_LOG("score add complete\n");
- ret = 1;
+ PARA_NOTICE_LOG("loaded mood %s\n", current_mood->name);
+ ret = statistics.num;
out:
free(aa.array);
return ret;
}
-
-/**
- * Close the current mood.
- *
- * Free all resources of the current mood which were allocated during
- * mood_open().
- */
-void close_current_mood(void)
-{
- destroy_mood(current_mood);
- current_mood = NULL;
- memset(&statistics, 0, sizeof(statistics));
-}
-
/**
* Close and re-open the current mood.
*
int reload_current_mood(void)
{
int ret;
- char *mood_name;
+ char *mood_name = NULL;
if (!current_mood)
return 1;
- score_shutdown(0);
- mood_name = para_strdup(current_mood->name);
+ PARA_NOTICE_LOG("reloading %s\n", current_mood->name?
+ current_mood->name : "(dummy)");
+ if (current_mood->name)
+ mood_name = para_strdup(current_mood->name);
close_current_mood();
ret = change_current_mood(mood_name);
free(mood_name);
return ret;
}
+
+int moods_event_handler(enum afs_events event, __a_unused struct para_buffer *pb,
+ void *data)
+{
+ switch(event) {
+ /*
+ * The three blob events might change the set of admissible files,
+ * so we must reload the score list.
+ */
+ case BLOB_RENAME:
+ case BLOB_REMOVE:
+ case BLOB_ADD:
+ if (data == moods_table || data == playlists_table)
+ return 1; /* no reload necessary for these */
+ return reload_current_mood();
+ /* these also require reload of the score table */
+ case ATTRIBUTE_ADD:
+ case ATTRIBUTE_REMOVE:
+ case ATTRIBUTE_RENAME:
+ return reload_current_mood();
+ /* changes to the aft only require to re-examine the audio file */
+ case AFSI_CHANGE: {
+ struct afsi_change_event_data *aced = data;
+ return mood_update_audio_file(aced->aft_row, aced->old_afsi);
+ }
+ case AFHI_CHANGE:
+ case AUDIO_FILE_RENAME:
+ case AUDIO_FILE_ADD:
+ return mood_update_audio_file(data, NULL);
+ case AUDIO_FILE_REMOVE:
+ return mood_delete_audio_file(data);
+ default:
+ return 1;
+ }
+}
+
projects / paraslash.git / blobdiff