lttng: Add remove-trigger command
[lttng-tools.git] / src / common / trigger.c
index 55ab99729c338259d72476e1a8074d12b9e5f43f..04b3e7f116bc7ba667c96b8570c1621e2a09930e 100644 (file)
@@ -23,7 +23,7 @@
 #include <inttypes.h>
 
 LTTNG_HIDDEN
-bool lttng_trigger_validate(struct lttng_trigger *trigger)
+bool lttng_trigger_validate(const struct lttng_trigger *trigger)
 {
        bool valid;
 
@@ -971,3 +971,34 @@ enum lttng_error_code lttng_trigger_generate_bytecode(
 end:
        return ret;
 }
+
+LTTNG_HIDDEN
+struct lttng_trigger *lttng_trigger_copy(const struct lttng_trigger *trigger)
+{
+       int ret;
+       struct lttng_payload copy_buffer;
+       struct lttng_trigger *copy = NULL;
+
+       lttng_payload_init(&copy_buffer);
+
+       ret = lttng_trigger_serialize(trigger, &copy_buffer);
+       if (ret < 0) {
+               goto end;
+       }
+
+       {
+               struct lttng_payload_view view =
+                               lttng_payload_view_from_payload(
+                                               &copy_buffer, 0, -1);
+               ret = lttng_trigger_create_from_payload(
+                               &view, &copy);
+               if (ret < 0) {
+                       copy = NULL;
+                       goto end;
+               }
+       }
+
+end:
+       lttng_payload_reset(&copy_buffer);
+       return copy;
+}
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