X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~mdw/git/disorder/blobdiff_plain/05b75f8d50b83e943af3be4071449304d82dbdcd..8a886602880a1a0b65de4e062d4be178dee4d181:/server/queue-ops.c

diff --git a/server/queue-ops.c b/server/queue-ops.c
index 952cb71..2bfe589 100644
--- a/server/queue-ops.c
+++ b/server/queue-ops.c
@@ -1,21 +1,22 @@
 /*
  * This file is part of DisOrder.
- * Copyright (C) 2004-2008 Richard Kettlewell
+ * Copyright (C) 2004-2009 Richard Kettlewell
  *
- * This program is free software; you can redistribute it and/or modify
+ * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
+ * the Free Software Foundation, either version 3 of the License, or
  * (at your option) any later version.
  *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ * 
  * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
- * USA
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+/** @file server/queue-ops.c
+ * @brief Track queues (server-specific code)
  */
 #include "disorder-server.h"
 
@@ -47,16 +48,32 @@ static void queue_id(struct queue_entry *q) {
   q->id = id;
 }
 
+/** @brief Add a track to the queue
+ * @param track Track to add
+ * @param submitter Who added it, or NULL
+ * @param where Where to add it
+ * @param target ID to add after for @ref WHERE_AFTER
+ * @param origin Track origin
+ * @return New queue entry or NULL
+ *
+ * The queue is NOT saved to disk.
+ *
+ * NULL can only be returned if @ref WHERE_AFTER is used with an invalid
+ * queue ID.
+ */
 struct queue_entry *queue_add(const char *track, const char *submitter,
-			      int where) {
-  struct queue_entry *q, *beforeme;
+			      int where, const char *target,
+                              enum track_origin origin) {
+  struct queue_entry *q, *beforeme, *afterme;
 
   q = xmalloc(sizeof *q);
   q->track = xstrdup(track);
   q->submitter = submitter ? xstrdup(submitter) : 0;
   q->state = playing_unplayed;
+  q->origin = origin;
+  q->pid = -1;
   queue_id(q);
-  time(&q->when);
+  xtime(&q->when);
   switch(where) {
   case WHERE_START:
     queue_insert_entry(&qhead, q);
@@ -69,10 +86,26 @@ struct queue_entry *queue_add(const char *track, const char *submitter,
      * at the end. */
     beforeme = &qhead;
     while(beforeme->prev != &qhead
-	  && beforeme->prev->state == playing_random)
+	  && beforeme->prev->origin == origin_random)
       beforeme = beforeme->prev;
     queue_insert_entry(beforeme->prev, q);
     break;
+  case WHERE_AFTER:
+    if(!*target)
+      /* Insert at start of queue */
+      afterme = &qhead;
+    else {
+      /* Insert after a specific track */
+      afterme = qhead.next;
+      while(afterme != &qhead && strcmp(afterme->id, target))
+        afterme = afterme->next;
+      if(afterme == &qhead)
+        return NULL;
+    }
+    queue_insert_entry(afterme, q);
+    break;
+  case WHERE_NOWHERE:
+    return q;
   }
   /* submitter will be a null pointer for a scratch */
   if(submitter)
@@ -123,7 +156,7 @@ int queue_move(struct queue_entry *q, int delta, const char *who) {
   }
 
   if(moved) {
-    info("user %s moved %s", who, q->id);
+    disorder_info("user %s moved %s", who, q->id);
     notify_queue_move(q->track, who);
     sprintf(buffer, "%d", moved);
     eventlog("moved", who, (char *)0);
@@ -151,7 +184,7 @@ void queue_moveafter(struct queue_entry *target,
     queue_insert_entry(target, q);
     target = q;
     /* Log the individual tracks */
-    info("user %s moved %s", who, q->id);
+    disorder_info("user %s moved %s", who, q->id);
     notify_queue_move(q->track, who);
   }
   /* Report that the queue changed to the event log */
@@ -160,7 +193,7 @@ void queue_moveafter(struct queue_entry *target,
 
 void queue_remove(struct queue_entry *which, const char *who) {
   if(who) {
-    info("user %s removed %s", who, which->id);
+    disorder_info("user %s removed %s", who, which->id);
     notify_queue_move(which->track, who);
   }
   eventlog("removed", which->id, who, (const char *)0);