New object. Operation queue. Meant to be used in non-blocking proxy

1999-09-17  bertrand  <Bertrand.Guiheneuf@aful.org>

	* camel/camel-op-queue.h:
	* camel/camel-op-queue.c:
	New object. Operation queue. Meant to be used in
	non-blocking proxy objects.

svn path=/trunk/; revision=1231

1 files changed, 89 insertions, 0 deletions

diff --git a/camel/camel-op-queue.c b/camel/camel-op-queue.c
new file mode 100644
index 0000000000..5549a40de1
--- /dev/null
+++ b/camel/camel-op-queue.c
@@ -0,0 +1,89 @@
+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
+
+/* 
+ * Copyright (C) 1999 Bertrand Guiheneuf <Bertrand.Guiheneuf@aful.org> .
+ *
+ * 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 (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.
+ *
+ * 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
+ */
+
+#include "camel-op-queue.h"
+
+
+
+/**
+ * camel_op_queue_new: create a new operation queue
+ * 
+ * Create a new operation queue. 
+ *
+ * Return value: the newly allcated object
+ **/
+CamelOpQueue *
+camel_op_queue_new ()
+{
+	CamelOpQueue *op_queue;
+	op_queue = g_new (CamelOpQueue, 1);
+	op_queue->ops_tail = NULL;
+	op_queue->ops_head = NULL;
+	
+}
+
+
+/**
+ * camel_op_queue_push_op: Add an operation to the queue
+ * @queue: queue object
+ * @op: operation to add
+ * 
+ * Add an operation to an operation queue. 
+ * The queue is a FIFO queue. 
+ **/
+void
+camel_op_queue_push_op (CamelOpQueue *queue, CamelOp *op)
+{
+	GList *new_op;
+
+	g_assert (queue);
+
+	if (!queue->ops_tail) {
+		queue->ops_head = g_list_prepend (NULL, op);
+		queue->ops_tail = queue->ops_head;
+	} else 
+		queue->ops_head = g_list_prepend (queue->ops_head, op);
+	
+}
+
+
+/**
+ * camel_op_queue_pop_op: Pop the next operation pending in the queue
+ * @queue: queue object
+ * 
+ * Pop the next operation pending in the queue.
+ * 
+ * Return value: 
+ **/
+CamelOp *
+camel_op_queue_pop_op (CamelOpQueue *queue)
+{
+	GList *op;
+	
+	g_assert (queue);
+	
+	op = queue->ops_tail;
+	queue->ops_tail = queue->ops_tail->prev;
+
+	return op;
+}
+
+