X-Git-Url: http://git.lttng.org./?a=blobdiff_plain;f=ltt%2Fbranches%2Fpoly%2Flttv%2Flttv%2Ftracecontext.h;h=37c4ba17884b6b615b1df3a4a0369b950a8d59d2;hb=9d22769951d59db05e925e55b5f454534af0b2b9;hp=4be8be70aba6388e7544656c3e2ab8c7bdc31d41;hpb=79257ba540581e198c9d9b047fe0738a25c324ff;p=lttv.git

diff --git a/ltt/branches/poly/lttv/lttv/tracecontext.h b/ltt/branches/poly/lttv/lttv/tracecontext.h
index 4be8be70..37c4ba17 100644
--- a/ltt/branches/poly/lttv/lttv/tracecontext.h
+++ b/ltt/branches/poly/lttv/lttv/tracecontext.h
@@ -77,6 +77,11 @@ typedef struct _LttvTracefileContextClass LttvTracefileContextClass;
 typedef struct _LttvTracesetContextPosition LttvTracesetContextPosition;
 typedef struct _LttvTraceContextPosition LttvTraceContextPosition;
 
+#ifndef LTTVFILTER_TYPE_DEFINED
+typedef struct _LttvFilter LttvFilter;
+#define LTTVFILTER_TYPE_DEFINED
+#endif
+
 #define LTTV_TRACESET_CONTEXT_TYPE  (lttv_traceset_context_get_type ())
 #define LTTV_TRACESET_CONTEXT(obj)  (G_TYPE_CHECK_INSTANCE_CAST ((obj), LTTV_TRACESET_CONTEXT_TYPE, LttvTracesetContext))
 #define LTTV_TRACESET_CONTEXT_CLASS(vtable)  (G_TYPE_CHECK_CLASS_CAST ((vtable), LTTV_TRACESET_CONTEXT_TYPE, LttvTracesetContextClass))
@@ -94,8 +99,8 @@ struct _LttvTracesetContext {
   TimeInterval time_span;
   GTree *pqueue;
 
- // LttvTracesetContextPosition *sync_position;   /* position at which to sync the
- //                                                  trace context */
+  LttvTracesetContextPosition *sync_position;   /* position at which to sync the
+                                                   trace context */
 };
 
 struct _LttvTracesetContextClass {
@@ -142,6 +147,7 @@ struct _LttvTraceContext {
   GArray *tracefiles;
   LttvAttribute *a;
   LttvAttribute *t_a;
+  TimeInterval time_span;
 };
 
 struct _LttvTraceContextClass {
@@ -306,7 +312,8 @@ LttvTracefileContext *lttv_traceset_context_get_current_tfc(
                              LttvTracesetContext *self);
 
 
-LttvTracesetContextPosition *lttv_traceset_context_position_new();
+LttvTracesetContextPosition *lttv_traceset_context_position_new(
+    const LttvTracesetContext *self);
 
 void lttv_traceset_context_position_save(const LttvTracesetContext *self,
                                     LttvTracesetContextPosition *pos);
@@ -331,8 +338,29 @@ gint compare_tracefile(gconstpointer a, gconstpointer b);
 
 /* Synchronisation helpers : save/restore synchronization between ltt traces and
  * a traceset context. */
-//void lttv_process_traceset_synchronize_tracefiles(LttvTracesetContext *tsc);
+void lttv_process_traceset_synchronize_tracefiles(LttvTracesetContext *tsc);
+
+void lttv_process_traceset_get_sync_data(LttvTracesetContext *tsc);
+
+/* Seek n events forward and backward (without filtering) : only use these where
+ * necessary : the seek backward is costy. */
+
+#define BACKWARD_SEEK_MUL 2 /* Multiplication factor of time_offset between
+                               backward seek iterations */
+
+static const LttTime seek_back_default_offset = { 1, 0 };
+
+guint lttv_process_traceset_seek_n_forward(LttvTracesetContext *self,
+                                           guint n,
+                                           LttvFilter *filter);
+typedef void (*seek_time_fct)(LttvTracesetContext *self, LttTime start);
+
+/* If first_offset is ltt_time_zero, it will choose a default value */
+guint lttv_process_traceset_seek_n_backward(LttvTracesetContext *self,
+                                            guint n,
+                                            LttTime first_offset,
+                                            seek_time_fct,
+                                            LttvFilter *filter);
 
-//void lttv_process_traceset_get_sync_data(LttvTracesetContext *tsc);
 
 #endif // PROCESSTRACE_H