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authorLluís <xscript@gmx.net>2011-08-31 20:31:18 +0200
committerStefan Hajnoczi <stefanha@linux.vnet.ibm.com>2011-09-01 10:34:54 +0100
commitfc764105397fa55e7c03f42a6d019063ec0cad00 (patch)
tree554e18aadadccd03db4f95ac6856e97527f2de9f /trace/default.c
parent49926043c1319ce99481d45c87c602c20b9dbb79 (diff)
trace: separate trace event control and query routines from the simple backend
Generalize the 'st_print_trace_events' and 'st_change_trace_event_state' into backend-specific 'trace_print_events' and 'trace_event_set_state' (respectively) in the "trace/control.h" file. Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu>
Diffstat (limited to 'trace/default.c')
-rw-r--r--trace/default.c15
1 files changed, 15 insertions, 0 deletions
diff --git a/trace/default.c b/trace/default.c
index 42fdb6b6a4..3573d5b296 100644
--- a/trace/default.c
+++ b/trace/default.c
@@ -10,6 +10,21 @@
#include "trace/control.h"
+void trace_print_events(FILE *stream, fprintf_function stream_printf)
+{
+ fprintf(stderr, "warning: "
+ "cannot print the trace events with the current backend\n");
+ stream_printf(stream, "error: "
+ "operation not supported with the current backend\n");
+}
+
+bool trace_event_set_state(const char *name, bool state)
+{
+ fprintf(stderr, "warning: "
+ "cannot set the state of a trace event with the current backend\n");
+ return false;
+}
+
bool trace_backend_init(const char *file)
{
if (file) {