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https://github.com/owntone/owntone-server.git
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[library] Change implementation of item_add, event cb and drop item_remove.
This commit is contained in:
ejurgensen
parent
5cddf0e347
commit
2ee5f6d747
144
src/library.c
144
src/library.c
@ -48,6 +48,14 @@
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#include "listener.h"
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#include "player.h"
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#define LIBRARY_MAX_CALLBACKS 16
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struct library_callback_register
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{
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library_cb cb;
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void *arg;
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};
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struct playlist_item_add_param
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{
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const char *vp_playlist;
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@ -107,6 +115,9 @@ static struct event *updateev;
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static unsigned int deferred_update_notifications;
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static short deferred_update_events;
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// Stores callbacks that backends may have requested
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static struct library_callback_register library_cb_register[LIBRARY_MAX_CALLBACKS];
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/* ------------------- CALLED BY LIBRARY SOURCE MODULES -------------------- */
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@ -155,6 +166,50 @@ library_playlist_save(struct playlist_info *pli)
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return db_pl_update(pli);
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}
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static void
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scheduled_cb(int fd, short what, void *arg)
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{
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struct library_callback_register *cbreg = arg;
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DPRINTF(E_DBG, L_LIB, "Executing library callback to %p\n", cbreg->cb);
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cbreg->cb(cbreg->arg);
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memset(cbreg, 0, sizeof(struct library_callback_register));
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}
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int
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library_callback_schedule(library_cb cb, void *arg, struct timeval *wait)
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{
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struct library_callback_register *cbreg;
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int callback_id;
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// Find a free slot in the queue
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for (callback_id = 0; callback_id < ARRAY_SIZE(library_cb_register); callback_id++)
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{
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if (library_cb_register[callback_id].cb == NULL)
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break;
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}
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if (callback_id == ARRAY_SIZE(library_cb_register))
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{
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DPRINTF(E_LOG, L_LIB, "Library callback register is full! (size is %d)\n", LIBRARY_MAX_CALLBACKS);
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return -1;
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}
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cbreg = &library_cb_register[callback_id];
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cbreg->cb = cb;
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cbreg->arg = arg;
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// One-time event, freed automatically by libevent
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CHECK_ERR(L_LIB, event_base_once(evbase_lib, -1, EV_TIMEOUT, scheduled_cb, cbreg, wait));
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DPRINTF(E_DBG, L_LIB, "Added library callback to %p (id %d)\n", cbreg->cb, callback_id);
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return callback_id;
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}
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/* ---------------------- LIBRARY ABSTRACTION --------------------- */
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/* thread: library */
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@ -446,11 +501,11 @@ queue_save(void *arg, int *retval)
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static enum command_state
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item_add(void *arg, int *retval)
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{
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struct item_add_params *params = arg;
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const char *path = arg;
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int i;
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int ret = LIBRARY_ERROR;
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DPRINTF(E_DBG, L_LIB, "Adding item to library '%s' '%s'\n", params->name, params->path);
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DPRINTF(E_DBG, L_LIB, "Adding item to library '%s'\n", path);
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for (i = 0; sources[i]; i++)
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{
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@ -460,11 +515,11 @@ item_add(void *arg, int *retval)
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continue;
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}
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ret = sources[i]->item_add(params->name, params->path, params->limit);
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ret = sources[i]->item_add(path);
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if (ret == LIBRARY_OK)
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{
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DPRINTF(E_DBG, L_LIB, "Add item to path '%s' with library source '%s'\n", params->path, sources[i]->name);
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DPRINTF(E_DBG, L_LIB, "Add item to path '%s' with library source '%s'\n", path, sources[i]->name);
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listener_notify(LISTENER_DATABASE);
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break;
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}
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@ -474,38 +529,6 @@ item_add(void *arg, int *retval)
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return COMMAND_END;
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}
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static enum command_state
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item_remove(void *arg, int *retval)
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{
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const char *path = arg;
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int i;
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int ret = LIBRARY_ERROR;
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DPRINTF(E_DBG, L_LIB, "Removing item from library '%s'\n", path);
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for (i = 0; sources[i]; i++)
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{
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if (sources[i]->disabled || !sources[i]->item_remove)
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{
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DPRINTF(E_DBG, L_LIB, "Library source '%s' is disabled or does not support add_remove\n", sources[i]->name);
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continue;
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}
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ret = sources[i]->item_remove(path);
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if (ret == LIBRARY_OK)
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{
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DPRINTF(E_DBG, L_LIB, "Removing item from path '%s' with library source '%s'\n", path, sources[i]->name);
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listener_notify(LISTENER_DATABASE);
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break;
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}
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}
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*retval = ret;
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return COMMAND_END;
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}
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// Callback to notify listeners of database changes
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static void
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update_trigger_cb(int fd, short what, void *arg)
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@ -709,40 +732,12 @@ library_queue_item_add(const char *path, int position, char reshuffle, uint32_t
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}
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int
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library_item_add(const char *name, const char *path, long limit)
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{
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struct item_add_params params;
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if (library_is_scanning())
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return -1;
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params.name = name;
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params.path = path;
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params.limit = limit;
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return commands_exec_sync(cmdbase, item_add, NULL, ¶ms);
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}
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int
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library_item_remove(const char *path)
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library_item_add(const char *path)
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{
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if (library_is_scanning())
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return -1;
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return commands_exec_sync(cmdbase, item_remove, NULL, path);
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}
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struct event*
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library_register_event(void (*ev_cb)(int fd, short what, void *arg), void *ev_cb_arg, const struct timeval* cb_interval)
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{
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struct event *ev;
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ev = evtimer_new(evbase_lib, ev_cb, ev_cb_arg);
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if (!ev)
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{
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DPRINTF(E_FATAL, L_LIB, "Failed to create timer event\n");
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return NULL;
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}
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evtimer_add(ev, cb_interval);
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return ev;
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return commands_exec_sync(cmdbase, item_add, NULL, (char *)path);
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}
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int
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@ -807,21 +802,18 @@ library_init(void)
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for (i = 0; sources[i]; i++)
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{
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if (!sources[i]->init)
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{
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DPRINTF(E_FATAL, L_LIB, "BUG: library source '%s' has no init()\n", sources[i]->name);
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return -1;
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}
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if (!sources[i]->initscan || !sources[i]->rescan || !sources[i]->metarescan || !sources[i]->fullrescan)
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{
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DPRINTF(E_FATAL, L_LIB, "BUG: library source '%s' is missing a scanning method\n", sources[i]->name);
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return -1;
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}
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ret = sources[i]->init();
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if (ret < 0)
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sources[i]->disabled = 1;
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if (sources[i]->init && !sources[i]->disabled)
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{
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ret = sources[i]->init();
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if (ret < 0)
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sources[i]->disabled = 1;
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}
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}
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CHECK_NULL(L_LIB, cmdbase = commands_base_new(evbase_lib, NULL));
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@ -858,7 +850,7 @@ library_deinit()
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for (i = 0; sources[i]; i++)
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{
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if (sources[i]->deinit && !sources[i]->disabled)
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sources[i]->deinit();
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sources[i]->deinit();
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}
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event_free(updateev);
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@ -30,11 +30,7 @@
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#define LIBRARY_ERROR -1
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#define LIBRARY_PATH_INVALID -2
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struct item_add_params {
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const char *name;
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const char *path;
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int limit;
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};
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typedef void (*library_cb)(void *arg);
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/*
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* Definition of a library source
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@ -78,10 +74,9 @@ struct library_source
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int (*fullrescan)(void);
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/*
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* Perform an add to library of single item
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* Add an item to the library
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*/
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int (*item_add)(const char *name, const char *path, int limit);
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int (*item_remove)(const char *path);
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int (*item_add)(const char *path);
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/*
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* Add item to playlist
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@ -106,6 +101,12 @@ struct library_source
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/* --------------------- Interface towards source backends ----------------- */
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/*
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* Adds a mfi if mfi->id == 0, otherwise updates.
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*
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* @param mfi Media to save
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* @return 0 if operation succeeded, -1 on failure.
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*/
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int
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library_media_save(struct media_file_info *mfi);
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@ -113,11 +114,27 @@ library_media_save(struct media_file_info *mfi);
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* Adds a playlist if pli->id == 0, otherwise updates.
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*
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* @param pli Playlist to save
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* @return playlist id if operation succeeded, -1 on failure.
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* @return Playlist id if operation succeeded, -1 on failure.
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*/
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int
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library_playlist_save(struct playlist_info *pli);
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/*
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* @param cb Callback to call
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* @param arg Argument to call back with
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* @param timeval How long to wait before calling back
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* @return id of the scheduled event, -1 on failure
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*/
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int
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library_callback_schedule(library_cb cb, void *arg, struct timeval *wait);
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/*
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* @return true if a running scan should be aborted due to imminent shutdown
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*/
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bool
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library_is_exiting();
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/* ------------------------ Library external interface --------------------- */
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void
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@ -141,12 +158,6 @@ library_is_scanning();
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void
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library_set_scanning(bool is_scanning);
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/*
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* @return true if a running scan should be aborted due to imminent shutdown, otherwise false
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*/
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bool
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library_is_exiting();
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/*
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* Trigger for sending the DATABASE event
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*
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@ -169,15 +180,8 @@ int
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library_queue_item_add(const char *path, int position, char reshuffle, uint32_t item_id, int *count, int *new_item_id);
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int
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library_item_add(const char *name, const char *url, long limit);
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library_item_add(const char *path);
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int
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library_item_remove(const char *url);
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/* Register any timer events for library modules
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*/
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struct event*
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library_register_event(void (*ev_cb)(int fd, short what, void *arg), void *ev_cb_arg, const struct timeval* cb_interval);
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/*
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* Execute the function 'func' with the given argument 'arg' in the library thread.
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