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[lttngtop.git] / lib / babeltrace / context-internal.h

diff --git a/lib/babeltrace/context-internal.h b/lib/babeltrace/context-internal.h
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+#ifndef _BABELTRACE_CONTEXT_INTERNAL_H
+#define _BABELTRACE_CONTEXT_INTERNAL_H
+
+/*
+ * BabelTrace
+ *
+ * context header (internal)
+ *
+ * Copyright 2012 EfficiOS Inc. and Linux Foundation
+ *
+ * Author: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
+ *         Julien Desfossez <julien.desfossez@efficios.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include <glib.h>
+
+struct trace_collection;
+struct GHashTable;
+
+/*
+ * The context represents the object in which a trace_collection is
+ * open. As long as this structure is allocated, the trace_collection is
+ * open and the traces it contains can be read and seeked by the
+ * iterators and callbacks.
+ *
+ * It has to be created with the bt_context_create() function and
+ * destroyed by calling one more bt_context_put() than bt_context_get()
+ */
+struct bt_context {
+       struct trace_collection *tc;
+       GHashTable *trace_handles;
+       int refcount;
+       int last_trace_handle_id;
+       struct bt_iter *current_iterator;
+};
+
+#endif /* _BABELTRACE_CONTEXT_INTERNAL_H */