#include "sched.h"
#include "signal.h"
#include "fd.h"
+#include "mood.h"
/** The osl tables used by afs. \sa blob.c. */
enum afs_table_num {
int audio_file_loop(void *private_data, osl_rbtree_loop_func *func);
void aft_check_callback(int fd, __a_unused const struct osl_object *query);
-/* mood */
-int change_current_mood(char *mood_name);
-void close_current_mood(void);
-int reload_current_mood(void);
-void mood_check_callback(int fd, __a_unused const struct osl_object *query);
-
-
/* playlist */
int playlist_open(char *name);
void playlist_close(void);
playlist sha1 sched audiod grab_client filter_common wav_filter compress_filter
http_recv dccp_recv recv_common write_common file_write audiod_command
client_common recv stdout filter stdin audioc write client exec send_common ggo
-udp_recv udp_send color fec fecdec_filter prebuffer_filter"
+udp_recv udp_send color fec fecdec_filter prebuffer_filter mm"
all_executables="server recv filter audioc write client afh"
server_cmdline_objs="server.cmdline server_command_list afs_command_list"
server_errlist_objs="server afh_common mp3_afh vss command net string signal
- time daemon crypt http_send close_on_fork
+ time daemon crypt http_send close_on_fork mm
ipc dccp_send fd user_list chunk_queue afs aft mood score attribute
blob playlist sha1 sched acl send_common udp_send color fec"
server_ldflags="-losl"
#define MOOD_ERRORS \
- PARA_ERROR(MOOD_SYNTAX, "mood syntax error"), \
PARA_ERROR(NO_MOOD, "no mood available"), \
PARA_ERROR(NOT_ADMISSIBLE, "file is not admissible"), \
PARA_ERROR(DUMMY_ROW, "attempted to access blob dummy object"), \
+#define MM_ERRORS \
+ PARA_ERROR(MOOD_SYNTAX, "mood syntax error"), \
+
+
#define ATTRIBUTE_ERRORS \
PARA_ERROR(ATTR_SYNTAX, "attribute syntax error"), \
PARA_ERROR(NO_ATTRIBUTES, "no attributes defined yet"), \
--- /dev/null
+/*
+ * Copyright (C) 2007-2009 Andre Noll <maan@systemlinux.org>
+ *
+ * Licensed under the GPL v2. For licencing details see COPYING.
+ */
+
+/** \file mm.c Paraslash's mood methods. */
+
+#include <time.h>
+#include <regex.h>
+#include <fnmatch.h>
+#include <osl.h>
+
+#include "para.h"
+#include "error.h"
+#include "string.h"
+#include "afh.h"
+#include "afs.h"
+#include "mm.h"
+
+#define MOOD_COMPARATORS \
+ MC(LESS, <) \
+ MC(LESS_OR_EQUAL, <=) \
+ MC(EQUAL, =) \
+ MC(EQUAL2, ==) \
+ MC(NOT_EQUAL, !=) \
+ MC(NOT_EQUAL2, <>) \
+ MC(GREATER, >) \
+ MC(GREATER_OR_EQUAL, >=) \
+
+#define MC(a, b) MC_ ## a,
+enum mood_comparator_id {MOOD_COMPARATORS NUM_MOOD_COMPARATORS};
+#undef MC
+#define MC(a, b) # b,
+const char const *mood_comparators[] = {MOOD_COMPARATORS};
+#undef MC
+
+static int parse_mood_comparator(const char *word)
+{
+ int i;
+
+ for (i = 0; i < NUM_MOOD_COMPARATORS; i++)
+ if (!strcmp(word, mood_comparators[i]))
+ return i;
+ return -E_MOOD_SYNTAX;
+}
+
+static int compare_int32(int32_t a, int32_t b, enum mood_comparator_id id)
+{
+ int res;
+
+ switch (id) {
+ case MC_LESS:
+ res = a < b; break;
+ case MC_LESS_OR_EQUAL:
+ res = a <= b; break;
+ case MC_EQUAL:
+ case MC_EQUAL2:
+ res = a == b; break;
+ case MC_NOT_EQUAL:
+ case MC_NOT_EQUAL2:
+ res = a != b; break;
+ case MC_GREATER:
+ res = a > b; break;
+ case MC_GREATER_OR_EQUAL:
+ res = a >= b; break;
+ default:
+ PARA_EMERG_LOG("BUG: invalid mood comparator\n");
+ exit(EXIT_FAILURE);
+ }
+ return res? 100 : -100;
+}
+
+struct mm_year_data {
+ /** The year given at the mood line. */
+ int32_t year;
+ /** Used to detect Y2K issues. */
+ int32_t current_year;
+ /** <, <=, =, !=, >=, or >. */
+ enum mood_comparator_id id;
+};
+
+static int mm_year_parser(int argc, char **argv, void **private)
+{
+ int ret = -E_MOOD_SYNTAX;
+ struct mm_year_data *mmyd = para_malloc(sizeof(*mmyd));
+ time_t current_time;
+ struct tm *gmt;
+
+ if (argc != 2)
+ goto err;
+ ret = parse_mood_comparator(argv[1]);
+ mmyd->id = ret;
+ if (ret < 0)
+ goto err;
+ ret = para_atoi32(argv[2], &mmyd->year);
+ if (ret < 0)
+ goto err;
+ current_time = time(NULL);
+ gmt = gmtime(¤t_time);
+ /* tm_year is the number of years since 1900 */
+ mmyd->current_year = gmt->tm_year + 1900;
+ *private = mmyd;
+ return 1;
+err:
+ free(mmyd);
+ return ret;
+}
+
+static int mm_year_score_function(__a_unused const char *path,
+ __a_unused const struct afs_info *afsi,
+ const struct afh_info *afhi,
+ const void *private)
+{
+ const struct mm_year_data *mmyd = private;
+ int32_t tag_year;
+ int ret = para_atoi32(afhi->tags.year, &tag_year);
+
+ if (ret < 0) /* year tag not present or not a number */
+ return -100;
+ if (tag_year < 0)
+ return -100;
+ /* try to work around Y2K issues */
+ if (tag_year < 100) {
+ tag_year += 1900;
+ if (tag_year + 100 <= mmyd->current_year)
+ tag_year += 100; /* assume tag_year >= 2000 */
+ }
+ return compare_int32(tag_year, mmyd->year, mmyd->id);
+}
+
+static void mm_year_cleanup(void *private)
+{
+ free(private);
+}
+
+static int mm_no_attributes_set_parser(int argc, __a_unused char **argv,
+ __a_unused void **ignored)
+{
+ return argc? -E_MOOD_SYNTAX : 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_path_matches_score_function(const char *path,
+ __a_unused const struct afs_info *afsi,
+ __a_unused const struct afh_info *afhi,
+ const void *data)
+{
+ if (fnmatch(data, path, 0))
+ return -100;
+ return 100;
+}
+
+static int mm_path_matches_parser(int argc, char **argv, void **data)
+{
+ if (argc != 1)
+ return -E_MOOD_SYNTAX;
+ *data = para_strdup(argv[1]);
+ return 1;
+}
+
+static void mm_path_matches_cleanup(void *data)
+{
+ free(data);
+}
+
+static int mm_is_set_parser(int argc, char **argv, void **bitnum)
+{
+ int ret;
+ unsigned char c, *res;
+
+ if (argc != 1)
+ return -E_MOOD_SYNTAX;
+ ret = get_attribute_bitnum_by_name(argv[1], &c);
+ if (ret < 0)
+ return ret;
+ res = para_malloc(1);
+ *res = c;
+ *bitnum = res;
+ return 1;
+}
+
+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)
+{
+ const unsigned char *bn = data;
+ if (afsi->attributes & (1ULL << *bn))
+ return 100;
+ return -100;
+}
+
+#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
+
+const struct mood_method mood_methods[] = {
+ {DEFINE_MOOD_METHOD(no_attributes_set)},
+ {DEFINE_MOOD_METHOD(is_set)},
+ {DEFINE_MOOD_METHOD_WITH_CLEANUP(path_matches)},
+ {DEFINE_MOOD_METHOD_WITH_CLEANUP(year)},
+ {.parser = NULL}
+};
+
--- /dev/null
+/*
+ * Copyright (C) 2007-2009 Andre Noll <maan@systemlinux.org>
+ *
+ * Licensed under the GPL v2. For licencing details see COPYING.
+ */
+
+/** \file mm.h Symbols and declarations for mood methods. */
+
+/**
+ * Assign scores according to a mood_method.
+ *
+ * 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 char *path, const struct afs_info *afsi,
+ const struct afh_info *afhi, const void *data);
+
+/**
+ * Pre-process a mood line.
+ *
+ * The mood_parser of a mood_method is called once at mood open time for each
+ * line of the current mood definition that contains the mood_method's name as
+ * a keyword. The line is passed to the mood_parser as the first argument. The
+ * mood_parser must determine whether the line is syntactically correct and
+ * return a positive value if so and a negative value otherwise.
+ *
+ * Some mood parsers pre-process the data given in the mood line to compute a
+ * structure which depends of the particular mood_method and which is used
+ * later in the mood_score_function of the mood_method. The mood_parser may
+ * store a pointer to its structure via the void** pointer.
+ *
+ * \sa mood_open(), mood_cleanup_function, mood_score_function.
+ */
+typedef int mood_parser(int, char **, void **);
+
+/**
+ * Deallocate resources which were allocated by the mood_parser.
+ *
+ * This optional function of a mood_method is used to free any resources
+ * allocated in mood_open() by the mood_parser. The argument passed is a
+ * pointer to the mood_method specific data structure that was returned by the
+ * mood_parser.
+ *
+ * \sa mood_parser.
+ */
+typedef void mood_cleanup_function(void *);
+
+/**
+ * Used for scoring and to determine whether a file is admissible.
+ */
+struct mood_method {
+ /** The name of the method. */
+ const char *name;
+ /** Pointer to the mood parser. */
+ mood_parser *parser;
+ /** Pointer to the score function */
+ mood_score_function *score_function;
+ /** Optional cleanup function. */
+ mood_cleanup_function *cleanup;
+};
+
+/** The array of available mood methods. */
+extern const struct mood_method mood_methods[];
/** \file mood.c Paraslash's mood handling functions. */
-#include <time.h>
#include <regex.h>
-#include <fnmatch.h>
#include <osl.h>
#include "para.h"
#include "afs.h"
#include "list.h"
#include "ipc.h"
+#include "mm.h"
/**
* Contains statistical data of the currently admissible audio files.
};
struct afs_statistics statistics;
-/**
- * Assign scores according to a mood_method.
- *
- * 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 char *path, const struct afs_info *afsi,
- const struct afh_info *afhi, const void *data);
-
-/**
- * Pre-process a mood line.
- *
- * The mood_parser of a mood_method is called once at mood open time for each
- * line of the current mood definition that contains the mood_method's name as
- * a keyword. The line is passed to the mood_parser as the first argument. The
- * mood_parser must determine whether the line is syntactically correct and
- * return a positive value if so and a negative value otherwise.
- *
- * Some mood parsers pre-process the data given in the mood line to compute a
- * structure which depends of the particular mood_method and which is used
- * later in the mood_score_function of the mood_method. The mood_parser may
- * store a pointer to its structure via the void** pointer.
- *
- * \sa mood_open(), mood_cleanup_function, mood_score_function.
- */
-typedef int mood_parser(int, char **, void **);
-
-/**
- * Deallocate resources which were allocated by the mood_parser.
- *
- * This optional function of a mood_method is used to free any resources
- * allocated in mood_open() by the mood_parser. The argument passed is a
- * pointer to the mood_method specific data structure that was returned by the
- * mood_parser.
- *
- * \sa mood_parser.
- */
-typedef void mood_cleanup_function(void *);
-
-/**
- * Used for scoring and to determine whether a file is admissible.
- */
-struct mood_method {
- /** The name of the method. */
- const char *name;
- /** Pointer to the mood parser. */
- mood_parser *parser;
- /** Pointer to the score function */
- mood_score_function *score_function;
- /** Optional cleanup function. */
- mood_cleanup_function *cleanup;
-};
-
/**
* Each line of the current mood corresponds to a mood_item.
*/
return res;
}
-#define MOOD_COMPARATORS \
- MC(LESS, <) \
- MC(LESS_OR_EQUAL, <=) \
- MC(EQUAL, =) \
- MC(EQUAL2, ==) \
- MC(NOT_EQUAL, !=) \
- MC(NOT_EQUAL2, <>) \
- MC(GREATER, >) \
- MC(GREATER_OR_EQUAL, >=) \
-
-#define MC(a, b) MC_ ## a,
-enum mood_comparator_id {MOOD_COMPARATORS NUM_MOOD_COMPARATORS};
-#undef MC
-#define MC(a, b) # b,
-const char const *mood_comparators[] = {MOOD_COMPARATORS};
-#undef MC
-
-static int parse_mood_comparator(const char *word)
-{
- int i;
-
- for (i = 0; i < NUM_MOOD_COMPARATORS; i++)
- if (!strcmp(word, mood_comparators[i]))
- return i;
- return -E_MOOD_SYNTAX;
-}
-
-static int compare_int32(int32_t a, int32_t b, enum mood_comparator_id id)
-{
- int res;
-
- switch (id) {
- case MC_LESS:
- res = a < b; break;
- case MC_LESS_OR_EQUAL:
- res = a <= b; break;
- case MC_EQUAL:
- case MC_EQUAL2:
- res = a == b; break;
- case MC_NOT_EQUAL:
- case MC_NOT_EQUAL2:
- res = a != b; break;
- case MC_GREATER:
- res = a > b; break;
- case MC_GREATER_OR_EQUAL:
- res = a >= b; break;
- default:
- PARA_EMERG_LOG("BUG: invalid mood comparator\n");
- exit(EXIT_FAILURE);
- }
- return res? 100 : -100;
-}
-
-struct mm_year_data {
- /** The year given at the mood line. */
- int32_t year;
- /** Used to detect Y2K issues. */
- int32_t current_year;
- /** <, <=, =, !=, >=, or >. */
- enum mood_comparator_id id;
-};
-
-static int mm_year_parser(int argc, char **argv, void **private)
-{
- int ret = -E_MOOD_SYNTAX;
- struct mm_year_data *mmyd = para_malloc(sizeof(*mmyd));
- time_t current_time;
- struct tm *gmt;
-
- if (argc != 2)
- goto err;
- ret = parse_mood_comparator(argv[1]);
- mmyd->id = ret;
- if (ret < 0)
- goto err;
- ret = para_atoi32(argv[2], &mmyd->year);
- if (ret < 0)
- goto err;
- current_time = time(NULL);
- gmt = gmtime(¤t_time);
- /* tm_year is the number of years since 1900 */
- mmyd->current_year = gmt->tm_year + 1900;
- *private = mmyd;
- return 1;
-err:
- free(mmyd);
- return ret;
-}
-
-static int mm_year_score_function(__a_unused const char *path,
- __a_unused const struct afs_info *afsi,
- const struct afh_info *afhi,
- const void *private)
-{
- const struct mm_year_data *mmyd = private;
- int32_t tag_year;
- int ret = para_atoi32(afhi->tags.year, &tag_year);
-
- if (ret < 0) /* year tag not present or not a number */
- return -100;
- if (tag_year < 0)
- return -100;
- /* try to work around Y2K issues */
- if (tag_year < 100) {
- tag_year += 1900;
- if (tag_year + 100 <= mmyd->current_year)
- tag_year += 100; /* assume tag_year >= 2000 */
- }
- return compare_int32(tag_year, mmyd->year, mmyd->id);
-}
-
-static void mm_year_cleanup(void *private)
-{
- free(private);
-}
-
-static int mm_no_attributes_set_parser(int argc, __a_unused char **argv,
- __a_unused void **ignored)
-{
- return argc? -E_MOOD_SYNTAX : 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)
-{
- unsigned num;
- int ret = get_num_admissible_files(&num);
-
- if (ret < 0)
- return 0;
- 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(int argc, __a_unused char **argv,
- __a_unused void **ignored)
-{
- return argc? -E_MOOD_SYNTAX : 1;
-}
-
-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)
-{
- if (fnmatch(data, path, 0))
- return -100;
- return 100;
-}
-
-static int mm_path_matches_parser(int argc, char **argv, void **data)
-{
- if (argc != 1)
- return -E_MOOD_SYNTAX;
- *data = para_strdup(argv[1]);
- return 1;
-}
-
-static void mm_path_matches_cleanup(void *data)
-{
- free(data);
-}
-
-static int mm_is_set_parser(int argc, char **argv, void **bitnum)
-{
- int ret;
- unsigned char c, *res;
-
- if (argc != 1)
- return -E_MOOD_SYNTAX;
- ret = get_attribute_bitnum_by_name(argv[1], &c);
- if (ret < 0)
- return ret;
- res = para_malloc(1);
- *res = c;
- *bitnum = res;
- return 1;
-}
-
-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)
-{
- const unsigned char *bn = data;
- if (afsi->attributes & (1ULL << *bn))
- return 100;
- return -100;
-}
-
/* 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)
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[] = {
- {DEFINE_MOOD_METHOD(no_attributes_set)},
- {DEFINE_MOOD_METHOD(played_rarely)},
- {DEFINE_MOOD_METHOD(is_set)},
- {DEFINE_MOOD_METHOD_WITH_CLEANUP(path_matches)},
- {DEFINE_MOOD_METHOD_WITH_CLEANUP(year)},
- {.parser = NULL}
-};
-
static void cleanup_list_entry(struct mood_item *item)
{
if (item->method && item->method->cleanup)
memset(&statistics, 0, sizeof(statistics));
}
-
/**
* Change the current mood.
*
--- /dev/null
+/*
+ * Copyright (C) 2007-2009 Andre Noll <maan@systemlinux.org>
+ *
+ * Licensed under the GPL v2. For licencing details see COPYING.
+ */
+
+/** \file mood.h Functions exported by mood.h. */
+
+int change_current_mood(char *mood_name);
+void close_current_mood(void);
+int reload_current_mood(void);
+void mood_check_callback(int fd, __a_unused const struct osl_object *query);
projects / paraslash.git / commitdiff