Change year of copyright from 2008 to 2009.

[paraslash.git] / afs.h

diff --git a/afs.h b/afs.h
index b17c8441c3c2488254f668df6062718e6575b9d8..4be5aaa9de8d2f0fe5df5d9546da064973dd5fd6 100644 (file)
--- a/afs.h
+++ b/afs.h
@@ -1,5 +1,5 @@
 /*
- * 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.
  */
@@ -24,6 +24,8 @@ struct afs_info {
        uint32_t lyrics_id;
        /** Mp3, ogg or aac. */
        uint8_t audio_format_id;
+       /** Amplification value. */
+       uint8_t amp;
 };
 
 /**
@@ -113,9 +115,7 @@ void make_empty_status_items(char *buf);
 /** At most that many bytes will be passed from afs to para_server. */
 #define VERBOSE_LS_OUTPUT_SIZE 4096
 
-/*
- * Data about the current audio file, passed from afs to server.
- */
+/** Data about the current audio file, passed from afs to server. */
 struct audio_file_data {
        /** Same info as ls -lv -p current audio_file. */
        char verbose_ls_output[VERBOSE_LS_OUTPUT_SIZE];
@@ -161,7 +161,7 @@ struct pattern_match_data {
        int (*action)(struct osl_table *table, struct osl_row *row, const char *name, void *data);
 };
 
-/* afs */
+
 /**
  * Afs command handlers run as a process which is not related to the afs
  * process, i.e. they can not change the address space of afs directly.
@@ -170,19 +170,35 @@ struct pattern_match_data {
  *
  * \sa send_callback_request().
  */
-typedef int callback_function(const struct osl_object *, struct osl_object *);
+typedef void callback_function(int fd, const struct osl_object *);
+
+/**
+ * Callbacks send chunks to data back to the command handler. Pointers to
+ * this type of function are used by \ref send_callback_request and friends
+ * to deal with the data in the command handler process.
+ *
+ * \sa \ref send_callback_request().
+ */
+typedef int callback_result_handler(struct osl_object *result, void *private);
+int send_result(struct osl_object *result, void *fd_ptr);
+int pass_buffer_as_shm(char *buf, size_t size, void *fd_ptr);
+
 __noreturn void afs_init(uint32_t cookie, int socket_fd);
 void afs_event(enum afs_events event, struct para_buffer *pb,
        void *data);
 int send_callback_request(callback_function *f, struct osl_object *query,
-       struct osl_object *result);
-int send_standard_callback_request(int argc, char * const * const argv,
-               callback_function *f, struct osl_object *result);
+               callback_result_handler *result_handler,
+               void *private_result_data);
 int send_option_arg_callback_request(struct osl_object *options,
-       int argc, char * const * const argv, callback_function *f,
-       struct osl_object *result);
+               int argc,  char * const * const argv, callback_function *f,
+               callback_result_handler *result_handler,
+               void *private_result_data);
+int send_standard_callback_request(int argc,  char * const * const argv,
+               callback_function *f, callback_result_handler *result_handler,
+               void *private_result_data);
 int stdin_command(int fd, struct osl_object *arg_obj, callback_function *f,
-               unsigned max_len, struct osl_object *result);
+               unsigned max_len, callback_result_handler *result_handler,
+               void *private_result_data);
 int string_compare(const struct osl_object *obj1, const struct osl_object *obj2);
 int for_each_matching_row(struct pattern_match_data *pmd);
 
@@ -219,21 +235,19 @@ int get_afsi_of_path(const char *path, struct afs_info *afsi);
 int get_audio_file_path_of_row(const struct osl_row *row, char **path);
 int get_afsi_object_of_row(const struct osl_row *row, struct osl_object *obj);
 int audio_file_loop(void *private_data, osl_rbtree_loop_func *func);
-int aft_check_callback(const struct osl_object *query, struct osl_object *result);
+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);
-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);
 
 
 /* playlist */
 int playlist_open(char *name);
 void playlist_close(void);
-int playlist_check_callback(__a_unused const struct osl_object *query,
-       struct osl_object *result);
+void playlist_check_callback(int fd, __a_unused const struct osl_object *query);
 
 /** evaluates to 1 if x < y, to -1 if x > y and to 0 if x == y */
 #define NUM_COMPARE(x, y) ((int)((x) < (y)) - (int)((x) > (y)))