X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~mdw/git/disorder/blobdiff_plain/e7eb3a2744aa45179daea235800753d3d1955338..7a853280dc559b6a6d30e08daab964dcf64da62b:/server/queue-ops.c

diff --git a/server/queue-ops.c b/server/queue-ops.c
index fd883aa..f2b3457 100644
--- a/server/queue-ops.c
+++ b/server/queue-ops.c
@@ -15,6 +15,9 @@
  * You should have received a copy of the GNU General Public License
  * 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"
 
 static int find_in_list(struct queue_entry *needle,
@@ -45,16 +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);
@@ -67,10 +86,24 @@ 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;
   }
   /* submitter will be a null pointer for a scratch */
   if(submitter)