Class GDUQueue in separate header/source.

[yazpp-moved-to-github.git] / src / gduqueue.cpp

diff --git a/src/gduqueue.cpp b/src/gduqueue.cpp
new file mode 100644 (file)
index 0000000..b0886cb
--- /dev/null
+++ b/src/gduqueue.cpp
@@ -0,0 +1,66 @@
+/*
+ * Copyright (c) 1998-2005, Index Data.
+ * See the file LICENSE for details.
+ * 
+ * $Id: gduqueue.cpp,v 1.1 2005-10-13 09:56:38 adam Exp $
+ */
+
+#include <yaz++/gdu.h>
+#include <yaz++/gduqueue.h>
+
+using namespace yazpp_1;
+
+GDUQueue::GDUQueue()
+{
+    m_list = 0;
+}
+
+int GDUQueue::size()
+{
+    int no = 0;
+    GDUQueue_List *l;
+    for (l = m_list; l; l = l->m_next)
+        no++;
+    return no;
+}
+
+void GDUQueue::enqueue(GDU *gdu)
+{
+    GDUQueue_List *l = new GDUQueue_List;
+    l->m_next = m_list;
+    l->m_item = gdu;
+    m_list = l;
+}
+
+GDU *GDUQueue::dequeue()
+{
+    GDUQueue_List **l = &m_list;
+    if (!*l)
+        return 0;
+    while ((*l)->m_next)
+        l = &(*l)->m_next;
+    GDU *m = (*l)->m_item;
+    delete *l;
+    *l = 0;
+    return m;
+}
+
+void GDUQueue::clear()
+{
+    GDU *g;
+    while ((g = dequeue()))
+        delete g;
+}
+
+GDUQueue::~GDUQueue()
+{
+    clear();
+}
+/*
+ * Local variables:
+ * c-basic-offset: 4
+ * indent-tabs-mode: nil
+ * End:
+ * vim: shiftwidth=4 tabstop=8 expandtab
+ */
+