+/* This file is part of the YAZ toolkit.
+ * Copyright (C) 1995-2010 Index Data
+ * See the file LICENSE for details.
+ */
+/**
+ * \file zoom-event.c
+ * \brief Implements ZOOM Event stuff
+ */
+
+#include <assert.h>
+#include <string.h>
+#include <errno.h>
+#include "zoom-p.h"
+
+ZOOM_API(const char *) ZOOM_get_event_str(int event)
+{
+ static const char *ar[] = {
+ "NONE",
+ "CONNECT",
+ "SEND_DATA",
+ "RECV_DATA",
+ "TIMEOUT",
+ "UNKNOWN",
+ "SEND_APDU",
+ "RECV_APDU",
+ "RECV_RECORD",
+ "RECV_SEARCH",
+ "END"
+ };
+ return ar[event];
+}
+
+struct ZOOM_Event_p {
+ int kind;
+ ZOOM_Event next;
+ ZOOM_Event prev;
+};
+
+ZOOM_Event ZOOM_Event_create(int kind)
+{
+ ZOOM_Event event = (ZOOM_Event) xmalloc(sizeof(*event));
+ event->kind = kind;
+ event->next = 0;
+ event->prev = 0;
+ return event;
+}
+
+
+ZOOM_Event ZOOM_connection_get_event(ZOOM_connection c)
+{
+ ZOOM_Event event = c->m_queue_front;
+ if (!event)
+ {
+ c->last_event = ZOOM_EVENT_NONE;
+ return 0;
+ }
+ assert(c->m_queue_back);
+ c->m_queue_front = event->prev;
+ if (c->m_queue_front)
+ {
+ assert(c->m_queue_back);
+ c->m_queue_front->next = 0;
+ }
+ else
+ c->m_queue_back = 0;
+ c->last_event = event->kind;
+ return event;
+}
+
+void ZOOM_connection_put_event(ZOOM_connection c, ZOOM_Event event)
+{
+ if (c->m_queue_back)
+ {
+ c->m_queue_back->prev = event;
+ assert(c->m_queue_front);
+ }
+ else
+ {
+ assert(!c->m_queue_front);
+ c->m_queue_front = event;
+ }
+ event->next = c->m_queue_back;
+ event->prev = 0;
+ c->m_queue_back = event;
+}
+
+void ZOOM_Event_destroy(ZOOM_Event event)
+{
+ xfree(event);
+}
+
+void ZOOM_connection_remove_events(ZOOM_connection c)
+{
+ ZOOM_Event event;
+ while ((event = ZOOM_connection_get_event(c)))
+ ZOOM_Event_destroy(event);
+}
+
+ZOOM_API(int) ZOOM_connection_peek_event(ZOOM_connection c)
+{
+ ZOOM_Event event = c->m_queue_front;
+
+ return event ? event->kind : ZOOM_EVENT_NONE;
+}
+
+
+/*
+ * Local variables:
+ * c-basic-offset: 4
+ * c-file-style: "Stroustrup"
+ * indent-tabs-mode: nil
+ * End:
+ * vim: shiftwidth=4 tabstop=8 expandtab
+ */
+