Imported Upstream version 2.6.1

[debian/amanda] / xfer-src / element-glue.h

diff --git a/xfer-src/element-glue.h b/xfer-src/element-glue.h
new file mode 100644 (file)
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--- /dev/null
+++ b/xfer-src/element-glue.h
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+/*
+ * Amanda, The Advanced Maryland Automatic Network Disk Archiver
+ * Copyright (c) 2008 Zmanda Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+#ifndef ELEMENT_GLUE_H
+#define ELEMENT_GLUE_H
+
+#include <glib.h>
+#include <glib-object.h>
+#include "xfer-element.h"
+#include "semaphore.h"
+
+/*
+ * Class declaration
+ */
+
+GType xfer_element_glue_get_type(void);
+#define XFER_ELEMENT_GLUE_TYPE (xfer_element_glue_get_type())
+#define XFER_ELEMENT_GLUE(obj) G_TYPE_CHECK_INSTANCE_CAST((obj), xfer_element_glue_get_type(), XferElementGlue)
+#define XFER_ELEMENT_GLUE_CONST(obj) G_TYPE_CHECK_INSTANCE_CAST((obj), xfer_element_glue_get_type(), XferElementGlue const)
+#define XFER_ELEMENT_GLUE_CLASS(klass) G_TYPE_CHECK_CLASS_CAST((klass), xfer_element_glue_get_type(), XferElementGlueClass)
+#define IS_XFER_ELEMENT_GLUE(obj) G_TYPE_CHECK_INSTANCE_TYPE((obj), xfer_element_glue_get_type ())
+#define XFER_ELEMENT_GLUE_GET_CLASS(obj) G_TYPE_INSTANCE_GET_CLASS((obj), xfer_element_glue_get_type(), XferElementGlueClass)
+
+/*
+ * Main object structure
+ */
+
+typedef struct XferElementGlue {
+    XferElement __parent__;
+
+    /* the stuff we might use, depending on what flavor of glue we're
+     * providing.. */
+    int pipe[2];
+
+    /* for push/pull, a ring buffer of ptr/size pairs */
+    struct { gpointer buf; size_t size; } *ring;
+    semaphore_t *ring_used_sem, *ring_free_sem;
+    gint ring_head, ring_tail;
+
+    GThread *thread;
+    GThreadFunc threadfunc;
+} XferElementGlue;
+
+/*
+ * Class definition
+ */
+
+typedef struct {
+    XferElementClass __parent__;
+} XferElementGlueClass;
+
+/* Constructor */
+
+XferElement * xfer_element_glue(void);
+
+/* the mech pairs supported by this object */
+
+extern xfer_element_mech_pair_t *xfer_element_glue_mech_pairs;
+
+#endif