X-Git-Url: http://git.lttng.org./?a=blobdiff_plain;ds=sidebyside;f=ltt%2Fbranches%2Fpoly%2Flttv%2Fmodules%2Fgui%2Flttvwindow%2Flttvwindow%2Flttvwindowtraces.h;h=68fbc92108480cf6aeab122adf4b9694ca9230d3;hb=b052368a0d53ff62ed9110fbafdb857a2b034ca8;hp=20ea0c43f599279495224963cc8e655c6f0ae7d8;hpb=51705146eabfc882972ca6bc815dc78addcee896;p=lttv.git

diff --git a/ltt/branches/poly/lttv/modules/gui/lttvwindow/lttvwindow/lttvwindowtraces.h b/ltt/branches/poly/lttv/modules/gui/lttvwindow/lttvwindow/lttvwindowtraces.h
index 20ea0c43..68fbc921 100644
--- a/ltt/branches/poly/lttv/modules/gui/lttvwindow/lttvwindow/lttvwindowtraces.h
+++ b/ltt/branches/poly/lttv/modules/gui/lttvwindow/lttvwindow/lttvwindowtraces.h
@@ -47,7 +47,8 @@ extern LttvTraceInfo LTTV_TRACES,
               LTTV_HOOK_ADDER,
               LTTV_HOOK_REMOVER,
               LTTV_IN_PROGRESS,
-              LTTV_READY;
+              LTTV_READY,
+              LTTV_LOCK;
               
 
 
@@ -231,4 +232,30 @@ void lttvwindowtraces_unregister_computation_hooks
 void lttvwindowtraces_unregister_requests(LttvAttributeName module_name);
 
 
+/**
+ * Lock a trace so no other instance can use it.
+ *
+ * @param trace The trace to lock.
+ * @return 0 on success, -1 if cannot get lock.
+ */
+gint lttvwindowtraces_lock(LttvTrace *trace);
+
+
+/**
+ * Unlock a trace.
+ *
+ * @param trace The trace to unlock.
+ * @return 0 on success, -1 if cannot unlock (not locked ?).
+ */
+gint lttvwindowtraces_unlock(LttvTrace *trace);
+
+/**
+ * Verify if a trace is locked.
+ *
+ * @param trace The trace to verify.
+ * @return TRUE if locked, FALSE is unlocked.
+ */
+gint lttvwindowtraces_get_lock_state(LttvTrace *trace);
+
+
 #endif //LTTVWINDOWTRACES_H