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authorLluís <xscript@gmx.net>2011-08-31 20:31:03 +0200
committerStefan Hajnoczi <stefanha@linux.vnet.ibm.com>2011-09-01 10:34:53 +0100
commite4858974ec36afd8a6b3a9e2b0ad8f357f28efc7 (patch)
treeceb7f2b2cdff3c511e1807e65eb862b82cfac16c /trace/control.h
parentedb47ec498a5c00607e8d428668d5141822a9eac (diff)
trace: avoid conditional code compilation during option parsing
A default implementation for backend-specific routines is provided in "trace/default.c", which backends can override by setting "trace_default=no" in "configure". Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu>
Diffstat (limited to 'trace/control.h')
-rw-r--r--trace/control.h24
1 files changed, 24 insertions, 0 deletions
diff --git a/trace/control.h b/trace/control.h
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+/*
+ * Interface for configuring and controlling the state of tracing events.
+ *
+ * Copyright (C) 2011 Lluís Vilanova <vilanova@ac.upc.edu>
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2. See
+ * the COPYING file in the top-level directory.
+ */
+
+#ifndef TRACE_CONTROL_H
+#define TRACE_CONTROL_H
+
+#include <stdbool.h>
+
+
+/** Initialize the tracing backend.
+ *
+ * @file Name of trace output file; may be NULL.
+ * Corresponds to commandline option "-trace file=...".
+ * @return Whether the backend could be successfully initialized.
+ */
+bool trace_backend_init(const char *file);
+
+#endif /* TRACE_CONTROL_H */