1 files changed, 72 insertions, 0 deletions
diff --git a/src/indexer/indexer-queue.h b/src/indexer/indexer-queue.h
new file mode 100644
index 0000000..a9d5b9d
--- /dev/null
+++ b/src/indexer/indexer-queue.h
@@ -0,0 +1,72 @@
+#ifndef INDEXER_QUEUE_H
+#define INDEXER_QUEUE_H
+
+#include "indexer.h"
+
+typedef void indexer_queue_callback_t(int status, void *context);
+
+struct indexer_request {
+	struct indexer_request *prev, *next;
+
+	char *username;
+	char *mailbox;
+	char *session_id;
+	unsigned int max_recent_msgs;
+
+	/* index messages in this mailbox */
+	bool index:1;
+	/* optimize this mailbox */
+	bool optimize:1;
+	/* currently indexing this mailbox */
+	bool working:1;
+	/* after indexing is finished, add this request back to the queue and
+	   reindex it (i.e. a new indexing request came while we were
+	   working.) */
+	bool reindex_head:1;
+	bool reindex_tail:1;
+
+	/* when working finished, call this number of contexts and leave the
+	   rest to the reindexing. */
+	unsigned int working_context_idx;
+
+	ARRAY(void *) contexts;
+};
+
+struct indexer_queue *indexer_queue_init(indexer_queue_callback_t *callback);
+void indexer_queue_deinit(struct indexer_queue **queue);
+
+/* The callback is called whenever a new request is added to the queue. */
+void indexer_queue_set_listen_callback(struct indexer_queue *queue,
+				       void (*callback)(struct indexer_queue *));
+	
+void indexer_queue_append(struct indexer_queue *queue, bool append,
+			  const char *username, const char *mailbox,
+			  const char *session_id, unsigned int max_recent_msgs,
+			  void *context);
+void indexer_queue_append_optimize(struct indexer_queue *queue,
+				   const char *username, const char *mailbox,
+				   void *context);
+void indexer_queue_cancel_all(struct indexer_queue *queue);
+
+bool indexer_queue_is_empty(struct indexer_queue *queue);
+unsigned int indexer_queue_count(struct indexer_queue *queue);
+
+/* Return the next request from the queue, without removing it. */
+struct indexer_request *indexer_queue_request_peek(struct indexer_queue *queue);
+/* Remove the next request from the queue. You must call
+   indexer_queue_request_finish() to free its memory. */
+void indexer_queue_request_remove(struct indexer_queue *queue);
+/* Give a status update about how far the indexing is going on. */
+void indexer_queue_request_status(struct indexer_queue *queue,
+				  struct indexer_request *request,
+				  int percentage);
+/* Move the next request to the end of the queue. */
+void indexer_queue_move_head_to_tail(struct indexer_queue *queue);
+/* Start working on a request */
+void indexer_queue_request_work(struct indexer_request *request);
+/* Finish the request and free its memory. */
+void indexer_queue_request_finish(struct indexer_queue *queue,
+				  struct indexer_request **request,
+				  bool success);
+
+#endif