Added new class GDU.

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

diff --git a/src/gdu.cpp b/src/gdu.cpp
new file mode 100644 (file)
index 0000000..676a334
--- /dev/null
+++ b/src/gdu.cpp
@@ -0,0 +1,106 @@
+/*
+ * Copyright (c) 1998-2005, Index Data.
+ * See the file LICENSE for details.
+ * 
+ * $Id: gdu.cpp,v 1.1 2005-06-21 17:37:15 adam Exp $
+ */
+
+#include <yaz++/gdu.h>
+
+using namespace yazpp_1;
+
+GDU::GDU(Z_APDU *apdu)
+{
+    ODR encode = odr_createmem(ODR_ENCODE);
+    Z_GDU *gdu = (Z_GDU *) odr_malloc(encode, sizeof(*gdu));
+    gdu->which = Z_GDU_Z3950;
+    gdu->u.z3950 = apdu;
+    base(gdu, encode);
+}
+
+GDU::GDU(Z_GDU *gdu)
+{
+    base(gdu, odr_createmem(ODR_ENCODE));
+}
+
+void GDU::base(Z_GDU *gdu, ODR encode)
+{
+    m_decode = odr_createmem(ODR_DECODE);
+    m_gdu = 0;
+    if (z_GDU(encode, &gdu, 0, "encode"))
+    {
+       int len;
+       char *buf = odr_getbuf(encode, &len, 0);
+       
+       odr_setbuf(m_decode, buf, len, 0);
+       z_GDU(m_decode, &m_gdu, 0, 0);
+    }
+    odr_destroy(encode);
+}
+
+GDU::~GDU()
+{
+    odr_destroy(m_decode);
+}
+
+Z_GDU *GDU::get()
+{
+    return m_gdu;
+}
+
+void GDU::extract_odr_to(ODR dst)
+{
+    NMEM nmem = odr_extract_mem(m_decode);
+    if (!dst->mem)
+       dst->mem = nmem_create();
+    nmem_transfer(dst->mem, nmem);
+    nmem_destroy(nmem);
+}
+
+
+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();
+}