#endif
#include <string.h>
+#include <lttv/lttv.h>
#include <lttv/tracecontext.h>
#include <ltt/event.h>
-#include <ltt/facility.h>
#include <ltt/trace.h>
-#include <ltt/type.h>
+#include <lttv/filter.h>
#include <errno.h>
-
+#define min(a,b) (((a)<(b))?(a):(b))
gint compare_tracefile(gconstpointer a, gconstpointer b)
return comparison;
}
+typedef struct _LttvTracefileContextPosition {
+ LttEventPosition *event;
+ LttvTracefileContext *tfc;
+ gboolean used; /* Tells if the tfc is at end of traceset position */
+} LttvTracefileContextPosition;
+
+
struct _LttvTracesetContextPosition {
- GArray *ep; /* Array of LttEventPosition */
- GArray *tfc; /* Array of corresponding
- TracefileContext* */
- LttTime timestamp; /* Current time at the saved position */
+ GArray *tfcp; /* Array of LttvTracefileContextPosition */
+ LttTime timestamp; /* Current time at the saved position */
+ /* If ltt_time_infinite : no position is
+ * set, else, a position is set (may be end
+ * of trace, with ep->len == 0) */
};
void lttv_context_init(LttvTracesetContext *self, LttvTraceset *ts)
trace = tc->t;
ltt_trace_time_span_get(trace, &s, &e);
+ tc->time_span.start_time = s;
+ tc->time_span.end_time = e;
if(i==0){
time_span->start_time = s;
tfc->event = lttv_hooks_new();
tfc->event_by_id = lttv_hooks_by_id_new();
tfc->a = g_object_new(LTTV_ATTRIBUTE_TYPE, NULL);
+ tfc->target_pid = -1;
}
static void
init(LttvTracesetContext *self, LttvTraceset *ts)
{
- guint i, j, nb_trace, nb_control, nb_per_cpu, nb_tracefile;
+ guint i, nb_trace;
LttvTraceContext *tc;
sizeof(LttvTracefileContext*), 10);
tracefiles_groups = ltt_trace_get_tracefiles_groups(tc->t);
+ if(tracefiles_groups != NULL) {
+ args.func = (ForEachTraceFileFunc)init_tracefile_context;
+ args.func_args = tc;
- args.func = (ForEachTraceFileFunc)init_tracefile_context;
- args.func_args = tc;
-
- g_datalist_foreach(tracefiles_groups,
- (GDataForeachFunc)compute_tracefile_group,
- &args);
+ g_datalist_foreach(tracefiles_groups,
+ (GDataForeachFunc)compute_tracefile_group,
+ &args);
+ }
#if 0
nb_control = ltt_trace_control_tracefile_number(tc->t);
#endif //0
}
+ self->sync_position = lttv_traceset_context_position_new(self);
self->pqueue = g_tree_new(compare_tracefile);
lttv_process_traceset_seek_time(self, ltt_time_zero);
lttv_traceset_context_compute_time_span(self, &self->time_span);
LttvTraceContext *tc;
- LttvTracefileContext *tfc;
+ LttvTracefileContext **tfc;
LttvTraceset *ts = self->ts;
- //FIXME : segfault
-
g_tree_destroy(self->pqueue);
g_object_unref(self->a);
+ lttv_traceset_context_position_destroy(self->sync_position);
nb_trace = lttv_traceset_number(ts);
nb_tracefile = tc->tracefiles->len;
for(j = 0 ; j < nb_tracefile ; j++) {
- tfc = g_array_index(tc->tracefiles, LttvTracefileContext*, j);
- lttv_hooks_destroy(tfc->event);
- lttv_hooks_by_id_destroy(tfc->event_by_id);
- g_object_unref(tfc->a);
- g_object_unref(tfc);
+ tfc = &g_array_index(tc->tracefiles, LttvTracefileContext*, j);
+ lttv_hooks_destroy((*tfc)->event);
+ lttv_hooks_by_id_destroy((*tfc)->event_by_id);
+ g_object_unref((*tfc)->a);
+ g_object_unref(*tfc);
}
g_array_free(tc->tracefiles, TRUE);
g_object_unref(tc);
{
guint i, nb_tracefile;
- LttvTracefileContext *tfc;
+ LttvTracefileContext **tfc;
lttv_hooks_call(before_trace, self);
nb_tracefile = self->tracefiles->len;
for(i = 0 ; i < nb_tracefile ; i++) {
- tfc = g_array_index(self->tracefiles, LttvTracefileContext*, i);
- lttv_tracefile_context_add_hooks(tfc,
+ tfc = &g_array_index(self->tracefiles, LttvTracefileContext*, i);
+ lttv_tracefile_context_add_hooks(*tfc,
before_tracefile,
event,
event_by_id);
{
guint i, nb_tracefile;
- LttvTracefileContext *tfc;
+ LttvTracefileContext **tfc;
nb_tracefile = self->tracefiles->len;
for(i = 0 ; i < nb_tracefile ; i++) {
- tfc = g_array_index(self->tracefiles, LttvTracefileContext*, i);
- lttv_tracefile_context_remove_hooks(tfc,
+ tfc = &g_array_index(self->tracefiles, LttvTracefileContext*, i);
+ lttv_tracefile_context_remove_hooks(*tfc,
after_tracefile,
event,
event_by_id);
static gboolean get_first(gpointer key, gpointer value, gpointer user_data) {
+ g_assert(key == value);
*((LttvTracefileContext **)user_data) = (LttvTracefileContext *)value;
return TRUE;
}
+#ifdef DEBUG
+// Test to see if pqueue is traversed in the right order.
+static LttTime test_time;
+
+static gboolean test_tree(gpointer key, gpointer value, gpointer user_data) {
+
+ LttvTracefileContext *tfc = (LttvTracefileContext *)key;
+
+ g_debug("Tracefile name %s, time %lu.%lu, tfi %u, ti %u",
+ g_quark_to_string(ltt_tracefile_name(tfc->tf)),
+ tfc->timestamp.tv_sec, tfc->timestamp.tv_nsec,
+ tfc->index, tfc->t_context->index);
+
+ if(user_data != NULL) {
+ if(((LttvTracefileContext *)user_data) == (LttvTracefileContext *)value) {
+ g_assert(compare_tracefile(user_data, value) == 0);
+ } else
+ g_assert(compare_tracefile(user_data, value) != 0);
+ }
+ g_assert(ltt_time_compare(test_time, tfc->timestamp) <= 0);
+ test_time.tv_sec = tfc->timestamp.tv_sec;
+ test_time.tv_nsec = tfc->timestamp.tv_nsec;
+
+
+ //g_assert(((LttvTracefileContext *)user_data) != (LttvTracefileContext *)value);
+ return FALSE;
+}
+#endif //DEBUG
+
+
void lttv_process_traceset_begin(LttvTracesetContext *self,
LttvHooks *before_traceset,
}
+//enum read_state { LAST_NONE, LAST_OK, LAST_EMPTY };
+
/* Note : a _middle must be preceded from a _seek or another middle */
guint lttv_process_traceset_middle(LttvTracesetContext *self,
LttTime end,
{
GTree *pqueue = self->pqueue;
- guint id;
-
LttvTracefileContext *tfc;
LttEvent *e;
unsigned count = 0;
- gboolean last_ret = FALSE; /* return value of the last hook list called */
+ guint read_ret;
+
+ //enum read_state last_read_state = LAST_NONE;
+
+ gint last_ret = 0; /* return value of the last hook list called */
/* Get the next event from the pqueue, call its hooks,
reinsert in the pqueue the following event from the same tracefile
*/
if(unlikely(last_ret == TRUE ||
- count >= nb_events ||
+ ((count >= nb_events) && (nb_events != G_MAXULONG)) ||
(end_position!=NULL&<tv_traceset_context_ctx_pos_compare(self,
end_position) == 0)||
ltt_time_compare(end, tfc->timestamp) <= 0))
{
return count;
}
-
+
/* Get the tracefile with an event for the smallest time found. If two
or more tracefiles have events for the same time, hope that lookup
and remove are consistent. */
-
+
+#ifdef DEBUG
+ test_time.tv_sec = 0;
+ test_time.tv_nsec = 0;
+ g_debug("test tree before remove");
+ g_tree_foreach(pqueue, test_tree, tfc);
+#endif //DEBUG
g_tree_remove(pqueue, tfc);
+
+#ifdef DEBUG
+ test_time.tv_sec = 0;
+ test_time.tv_nsec = 0;
+ g_debug("test tree after remove");
+ g_tree_foreach(pqueue, test_tree, tfc);
+#endif //DEBUG
+
+
+ e = ltt_tracefile_get_event(tfc->tf);
+
+ //if(last_read_state != LAST_EMPTY) {
+ /* Only call hooks if the last read has given an event or if we are at the
+ * first pass (not if last read returned end of tracefile) */
count++;
- e = ltt_tracefile_get_event(tfc->tf);
- id = ltt_event_eventtype_id(e);
+ tfc->target_pid = -1; /* unset target PID */
+ /* Hooks :
+ * return values : 0 : continue read, 1 : go to next position and stop read,
+ * 2 : stay at the current position and stop read */
last_ret = lttv_hooks_call_merge(tfc->event, tfc,
- lttv_hooks_by_id_get(tfc->event_by_id, id), tfc);
+ lttv_hooks_by_id_get(tfc->event_by_id, e->event_id), tfc);
- if(likely(!ltt_tracefile_read(tfc->tf))) {
+#if 0
+ /* This is buggy : it won't work well with state computation */
+ if(unlikely(last_ret == 2)) {
+ /* This is a case where we want to stay at this position and stop read. */
+ g_tree_insert(pqueue, tfc, tfc);
+ return count - 1;
+ }
+#endif //0
+ read_ret = ltt_tracefile_read(tfc->tf);
+
+
+ if(likely(!read_ret)) {
+ //g_debug("An event is ready");
tfc->timestamp = ltt_event_time(e);
+ g_assert(ltt_time_compare(tfc->timestamp, ltt_time_infinite) != 0);
g_tree_insert(pqueue, tfc, tfc);
+#ifdef DEBUG
+ test_time.tv_sec = 0;
+ test_time.tv_nsec = 0;
+ g_debug("test tree after event ready");
+ g_tree_foreach(pqueue, test_tree, NULL);
+#endif //DEBUG
+
+ //last_read_state = LAST_OK;
+ } else {
+ tfc->timestamp = ltt_time_infinite;
+
+ if(read_ret == ERANGE) {
+ // last_read_state = LAST_EMPTY;
+ g_debug("End of trace");
+ } else
+ g_error("Error happened in lttv_process_traceset_middle");
}
}
}
/* Subtile modification :
* if tracefile has no event at or after the time requested, it is not put in
- * the queue, as the next read would fail. */
+ * the queue, as the next read would fail.
+ *
+ * Don't forget to empty the traceset pqueue before calling this.
+ */
void lttv_process_trace_seek_time(LttvTraceContext *self, LttTime start)
{
guint i, nb_tracefile;
gint ret;
- LttvTracefileContext *tfc;
-
- GTree *pqueue = self->ts_context->pqueue;
+ LttvTracefileContext **tfc;
nb_tracefile = self->tracefiles->len;
+ GTree *pqueue = self->ts_context->pqueue;
+
for(i = 0 ; i < nb_tracefile ; i++) {
- tfc = g_array_index(self->tracefiles, LttvTracefileContext*, i);
- ret = ltt_tracefile_seek_time(tfc->tf, start);
+ tfc = &g_array_index(self->tracefiles, LttvTracefileContext*, i);
+
+ g_tree_remove(pqueue, *tfc);
+
+ ret = ltt_tracefile_seek_time((*tfc)->tf, start);
if(ret == EPERM) g_error("error in lttv_process_trace_seek_time seek");
- g_tree_remove(pqueue, tfc);
if(ret == 0) { /* not ERANGE especially */
- tfc->timestamp = ltt_event_time(ltt_tracefile_get_event(tfc->tf));
- g_tree_insert(pqueue, tfc, tfc);
+ (*tfc)->timestamp = ltt_event_time(ltt_tracefile_get_event((*tfc)->tf));
+ g_assert(ltt_time_compare((*tfc)->timestamp, ltt_time_infinite) != 0);
+ g_tree_insert(pqueue, (*tfc), (*tfc));
+ } else {
+ (*tfc)->timestamp = ltt_time_infinite;
}
}
+#ifdef DEBUG
+ test_time.tv_sec = 0;
+ test_time.tv_nsec = 0;
+ g_debug("test tree after seek_time");
+ g_tree_foreach(pqueue, test_tree, NULL);
+#endif //DEBUG
+
+
+
}
LttvTraceContext *tc;
+ //g_tree_destroy(self->pqueue);
+ //self->pqueue = g_tree_new(compare_tracefile);
+
nb_trace = lttv_traceset_number(self->ts);
for(i = 0 ; i < nb_trace ; i++) {
tc = self->traces[i];
const LttvTracesetContextPosition *pos)
{
guint i;
- LttvTraceContext *tc;
- LttvTracefileContext *tfc;
+ /* If a position is set, seek the traceset to this position */
+ if(ltt_time_compare(pos->timestamp, ltt_time_infinite) != 0) {
+
+ /* Test to see if the traces has been added to the trace set :
+ * It should NEVER happen. Clear all positions if a new trace comes in. */
+ /* FIXME I know this test is not optimal : should keep a number of
+ * tracefiles variable in the traceset.. eventually */
+ guint num_traces = lttv_traceset_number(self->ts);
+ guint tf_count = 0;
+ for(i=0; i<num_traces;i++) {
+ GArray * tracefiles = self->traces[i]->tracefiles;
+ guint j;
+ guint num_tracefiles = tracefiles->len;
+ for(j=0;j<num_tracefiles;j++)
+ tf_count++;
+ }
+ g_assert(tf_count == pos->tfcp->len);
+
- g_tree_destroy(self->pqueue);
- self->pqueue = g_tree_new(compare_tracefile);
-
- for(i=0;i<pos->ep->len; i++) {
- LttEventPosition *ep = g_array_index(pos->ep, LttEventPosition*, i);
- LttvTracefileContext *tfc =
- g_array_index(pos->tfc, LttvTracefileContext*, i);
- g_assert(ltt_tracefile_seek_position(tfc->tf, ep) == 0);
- tfc->timestamp = ltt_event_time(ltt_tracefile_get_event(tfc->tf));
- g_tree_insert(self->pqueue, tfc, tfc);
+ //g_tree_destroy(self->pqueue);
+ //self->pqueue = g_tree_new(compare_tracefile);
+
+ for(i=0;i<pos->tfcp->len; i++) {
+ LttvTracefileContextPosition *tfcp =
+ &g_array_index(pos->tfcp, LttvTracefileContextPosition, i);
+
+ g_tree_remove(self->pqueue, tfcp->tfc);
+
+ if(tfcp->used == TRUE) {
+ if(ltt_tracefile_seek_position(tfcp->tfc->tf, tfcp->event) != 0)
+ return 1;
+ tfcp->tfc->timestamp =
+ ltt_event_time(ltt_tracefile_get_event(tfcp->tfc->tf));
+ g_assert(ltt_time_compare(tfcp->tfc->timestamp,
+ ltt_time_infinite) != 0);
+ g_tree_insert(self->pqueue, tfcp->tfc, tfcp->tfc);
+
+ } else {
+ tfcp->tfc->timestamp = ltt_time_infinite;
+ }
+ }
}
- return TRUE;
-}
+#ifdef DEBUG
+ test_time.tv_sec = 0;
+ test_time.tv_nsec = 0;
+ g_debug("test tree after seek_position");
+ g_tree_foreach(self->pqueue, test_tree, NULL);
+#endif //DEBUG
+
+ return 0;
+}
+
+#if 0 // pmf: temporary disable
static LttField *
find_field(LttEventType *et, const GQuark field)
{
- LttType *t;
-
LttField *f;
- guint i, nb;
-
- GQuark name;
-
- /* Field is unset */
if(field == 0) return NULL;
- f = ltt_eventtype_field(et);
- t = ltt_eventtype_type(et);
- g_assert(ltt_type_class(t) == LTT_STRUCT);
- nb = ltt_type_member_number(t);
- for(i = 0 ; i < nb ; i++) {
- ltt_type_member_type(t, i, &name);
- if(name == field) break;
+ f = ltt_eventtype_field_by_name(et, field);
+ if (!f) {
+ g_warning("Cannot find field %s in event %s.%s", g_quark_to_string(field),
+ g_quark_to_string(ltt_facility_name(ltt_eventtype_facility(et))),
+ g_quark_to_string(ltt_eventtype_name(et)));
}
- g_assert(i < nb);
- return ltt_field_member(f, i);
-}
-LttvTraceHookByFacility *lttv_trace_hook_get_fac(LttvTraceHook *th,
- guint facility_id)
-{
- return &g_array_index(th->fac_index, LttvTraceHookByFacility, facility_id);
+ return f;
}
+#endif
-/* Get the first facility corresponding to the name. As the types must be
- * compatible, it is relevant to use the field name and sizes of the first
- * facility to create data structures and assume the data will be compatible
- * thorough the trace */
-LttvTraceHookByFacility *lttv_trace_hook_get_first(LttvTraceHook *th)
+struct marker_info *lttv_trace_hook_get_marker(LttTrace *t, LttvTraceHook *th)
{
- g_assert(th->fac_list->len > 0);
- return g_array_index(th->fac_list, LttvTraceHookByFacility*, 0);
+ return marker_get_info_from_id(t, th->id);
}
-/* Returns 0 on success, -1 if fails. */
-gint
-lttv_trace_find_hook(LttTrace *t, GQuark facility, GQuark event,
- GQuark field1, GQuark field2, GQuark field3, LttvHook h, LttvTraceHook *th)
+int lttv_trace_find_hook(LttTrace *t, GQuark marker_name,
+ GQuark fields[], LttvHook h, gpointer hook_data, GArray **trace_hooks)
{
- LttFacility *f;
-
- LttEventType *et, *first_et;
-
- GArray *facilities;
-
- guint i, fac_id;
-
- LttvTraceHookByFacility *thf, *first_thf;
-
- facilities = ltt_trace_facility_get_by_name(t, facility);
-
- if(unlikely(facilities == NULL)) goto facility_error;
-
- th->fac_index = g_array_sized_new(FALSE, TRUE,
- sizeof(LttvTraceHookByFacility),
- NUM_FACILITIES);
- th->fac_index = g_array_set_size(th->fac_index, NUM_FACILITIES);
-
- th->fac_list = g_array_sized_new(FALSE, TRUE,
- sizeof(LttvTraceHookByFacility*),
- facilities->len);
- th->fac_list = g_array_set_size(th->fac_list, facilities->len);
-
- fac_id = g_array_index(facilities, guint, 0);
- f = ltt_trace_get_facility_by_num(t, fac_id);
-
- et = ltt_facility_eventtype_get_by_name(f, event);
- if(unlikely(et == NULL)) goto event_error;
-
- thf = &g_array_index(th->fac_index, LttvTraceHookByFacility, fac_id);
- g_array_index(th->fac_list, LttvTraceHookByFacility*, 0)
- = thf;
-
- thf->h = h;
- thf->id = ltt_eventtype_id(et);
- thf->f1 = find_field(et, field1);
- thf->f2 = find_field(et, field2);
- thf->f3 = find_field(et, field3);
-
- first_thf = thf;
-
- /* Check for type compatibility too */
- for(i=1;i<facilities->len;i++) {
- fac_id = g_array_index(facilities, guint, i);
- f = ltt_trace_get_facility_by_num(t, fac_id);
-
- et = ltt_facility_eventtype_get_by_name(f, ltt_eventtype_name(et));
- if(unlikely(et == NULL)) goto event_error;
-
- thf = &g_array_index(th->fac_index, LttvTraceHookByFacility, fac_id);
- g_array_index(th->fac_list, LttvTraceHookByFacility*, i)
- = thf;
- thf->h = h;
- thf->id = ltt_eventtype_id(et);
- thf->f1 = find_field(et, field1);
- if(check_fields_compatibility(first_et, et,
- first_thf->f1, thf->f1))
- goto type_error;
-
- thf->f2 = find_field(et, field2);
- if(check_fields_compatibility(first_et, et,
- first_thf->f2, thf->f2))
- goto type_error;
-
- thf->f3 = find_field(et, field3);
- if(check_fields_compatibility(first_et, et,
- first_thf->f3, thf->f3))
- goto type_error;
+ struct marker_info *info;
+ struct marker_field *field;
+ guint16 marker_id;
+ int init_array_size;
+
+ info = marker_get_info_from_name(t, marker_name);
+ if(unlikely(info == NULL)) {
+ return NULL;
}
- return 0;
-
-type_error:
- goto free;
-event_error:
- g_error("Event type %s does not exist",
- g_quark_to_string(ltt_eventtype_name(et)));
- goto free;
-facility_error:
- g_error("No %s facility", g_quark_to_string(facility));
- goto free;
-free:
- g_array_free(th->fac_index, TRUE);
- g_array_free(th->fac_list, TRUE);
- th->fac_index = NULL;
- th->fac_list = NULL;
- return -1;
+ init_array_size = (*trace_hooks)->len;
+
+ /* for each marker with the requested name */
+ do {
+ LttvTraceHook tmpth;
+ int found;
+ GQuark f;
+
+ marker_id = marker_get_id_from_info(t, info);
+
+ tmpth.h = h;
+ tmpth.id = marker_id;
+ tmpth.hook_data = hook_data;
+ tmpth.fields = g_ptr_array_new();
+
+ /* for each field requested */
+ for(f = fields; *f != 0; f++) {
+ found = 0;
+ for_each_marker_field(marker_field, info) {
+ if(marker_fieldfield->name == *f) {
+ found = 1;
+ g_ptr_array_add(tmpth.fields, marker_field);
+ break;
+ }
+ }
+ if(!found) {
+ /* Did not find the one of the fields in this instance of the
+ marker. Print a warning and skip this marker completely.
+ Still iterate on other markers with same name. */
+ g_ptr_array_free(tmpth.fields, TRUE);
+ g_warning("Field %s cannot be found in marker %s",
+ g_quark_to_string(*f), g_quark_to_string(marker_name));
+ goto skip_marker;
+ }
+ }
+ /* all fields were found: add the tracehook to the array */
+ *trace_hooks = g_array_append_val(*trace_hooks, tmpth);
+skip_marker:
+ info = info->next;
+ } while(info != NULL);
+
+ /* Error if no new trace hook has been added */
+ return (init_array_size == (*trace_hooks)->len);
}
-void lttv_trace_hook_destroy(LttvTraceHook *th)
+void lttv_trace_hook_destroy(GArray **th)
{
- g_array_free(th->fac_index, TRUE);
- g_array_free(th->fac_list, TRUE);
+ int i;
+ for(i=0; i<th->len; i++) {
+ g_ptr_array_free(g_array_index(th, LttvTraceHook, i).fields, TRUE);
+ }
+ *th = g_array_remove_range(*th, 0, th->len);
}
-
-LttvTracesetContextPosition *lttv_traceset_context_position_new()
+LttvTracesetContextPosition *lttv_traceset_context_position_new(
+ const LttvTracesetContext *self)
{
- LttvTracesetContextPosition *pos = g_new(LttvTracesetContextPosition,1);
- pos->ep = g_array_sized_new(FALSE, TRUE, sizeof(LttEventPosition*),
- 10);
- pos->tfc = g_array_sized_new(FALSE, TRUE, sizeof(LttvTracefileContext*),
- 10);
+ guint num_traces = lttv_traceset_number(self->ts);
+ guint tf_count = 0;
+ guint i;
+
+ for(i=0; i<num_traces;i++) {
+ GArray * tracefiles = self->traces[i]->tracefiles;
+ guint j;
+ guint num_tracefiles = tracefiles->len;
+ for(j=0;j<num_tracefiles;j++)
+ tf_count++;
+ }
+ LttvTracesetContextPosition *pos =
+ g_new(LttvTracesetContextPosition, 1);
+ pos->tfcp = g_array_sized_new(FALSE, TRUE,
+ sizeof(LttvTracefileContextPosition),
+ tf_count);
+ g_array_set_size(pos->tfcp, tf_count);
+ for(i=0;i<pos->tfcp->len;i++) {
+ LttvTracefileContextPosition *tfcp =
+ &g_array_index(pos->tfcp, LttvTracefileContextPosition, i);
+ tfcp->event = ltt_event_position_new();
+ }
+
pos->timestamp = ltt_time_infinite;
return pos;
}
-gboolean traverse_get_tfc(gpointer key, gpointer value, gpointer data)
+/* Save all positions, the ones with infinite time will have NULL
+ * ep. */
+/* note : a position must be destroyed when a trace is added/removed from a
+ * traceset */
+void lttv_traceset_context_position_save(const LttvTracesetContext *self,
+ LttvTracesetContextPosition *pos)
{
- LttvTracefileContext *tfc = (LttvTracefileContext *)value;
- LttvTracesetContextPosition *pos = (LttvTracesetContextPosition *)data;
-
- LttEvent *event = ltt_tracefile_get_event(tfc->tf);
- LttEventPosition *ep = ltt_event_position_new();
+ guint i;
+ guint num_traces = lttv_traceset_number(self->ts);
+ guint tf_count = 0;
- ltt_event_position(event, ep);
-
- g_array_append_val(pos->ep, ep);
- g_array_append_val(pos->tfc, tfc);
-
- if(ltt_time_compare(tfc->timestamp, pos->timestamp) < 0)
- pos->timestamp = tfc->timestamp;
+ pos->timestamp = ltt_time_infinite;
- return 0;
-}
+ for(i=0; i<num_traces;i++) {
+ GArray * tracefiles = self->traces[i]->tracefiles;
+ guint j;
+ guint num_tracefiles = tracefiles->len;
+
+ for(j=0;j<num_tracefiles;j++) {
+ g_assert(tf_count < pos->tfcp->len);
+ LttvTracefileContext **tfc = &g_array_index(tracefiles,
+ LttvTracefileContext*, j);
+ LttvTracefileContextPosition *tfcp =
+ &g_array_index(pos->tfcp, LttvTracefileContextPosition, tf_count);
+
+ tfcp->tfc = *tfc;
+
+ if(ltt_time_compare((*tfc)->timestamp, ltt_time_infinite) != 0) {
+ LttEvent *event = ltt_tracefile_get_event((*tfc)->tf);
+ ltt_event_position(event, tfcp->event);
+ if(ltt_time_compare((*tfc)->timestamp, pos->timestamp) < 0)
+ pos->timestamp = (*tfc)->timestamp;
+ tfcp->used = TRUE;
+ } else {
+ tfcp->used = FALSE;
+ }
+
+ //g_array_append_val(pos->tfc, *tfc);
+ //g_array_append_val(pos->ep, ep);
+ tf_count++;
+ }
-/* Subtile modification :
- * only save the tracefiles that are loaded in the pqueue */
-void lttv_traceset_context_position_save(const LttvTracesetContext *self,
- LttvTracesetContextPosition *pos)
-{
- g_tree_foreach(self->pqueue, traverse_get_tfc, pos);
+ }
}
void lttv_traceset_context_position_destroy(LttvTracesetContextPosition *pos)
{
int i;
- for(i=0;i<pos->ep->len;i++)
- g_free(g_array_index(pos->ep, LttEventPosition*, i));
- g_array_free(pos->ep, TRUE);
- g_array_free(pos->tfc, TRUE);
+
+ for(i=0;i<pos->tfcp->len;i++) {
+ LttvTracefileContextPosition *tfcp =
+ &g_array_index(pos->tfcp, LttvTracefileContextPosition, i);
+ g_free(tfcp->event);
+ tfcp->event = NULL;
+ tfcp->used = FALSE;
+ }
+ g_array_free(pos->tfcp, TRUE);
g_free(pos);
}
const LttvTracesetContextPosition *src)
{
int i;
+ LttvTracefileContextPosition *src_tfcp, *dest_tfcp;
- g_array_set_size(dest->ep, src->ep->len);
- g_array_set_size(dest->tfc, src->tfc->len);
+ g_assert(src->tfcp->len == src->tfcp->len);
- for(i=0;i<src->ep->len;i++) {
- g_array_index(dest->ep, LttEventPosition*, i) = ltt_event_position_new();
- ltt_event_position_copy(
- g_array_index(dest->ep, LttEventPosition*, i),
- g_array_index(src->ep, LttEventPosition*, i));
- }
- for(i=0;i<src->tfc->len;i++) {
- g_array_index(dest->tfc, LttvTracefileContext*, i) =
- g_array_index(src->tfc, LttvTracefileContext*, i);
+ for(i=0;i<src->tfcp->len;i++) {
+ src_tfcp =
+ &g_array_index(src->tfcp, LttvTracefileContextPosition, i);
+ dest_tfcp =
+ &g_array_index(dest->tfcp, LttvTracefileContextPosition, i);
+
+ dest_tfcp->used = src_tfcp->used;
+ dest_tfcp->tfc = src_tfcp->tfc;
+
+ if(src_tfcp->used) {
+ ltt_event_position_copy(
+ dest_tfcp->event,
+ src_tfcp->event);
+ }
}
dest->timestamp = src->timestamp;
}
const LttvTracesetContextPosition *pos)
{
int i;
- int ret;
-
- for(i=0;i<pos->ep->len;i++) {
- LttEventPosition *ep = g_array_index(pos->ep, LttEventPosition*, i);
- LttvTracefileContext *tfc =
- g_array_index(pos->tfc, LttvTracefileContext*, i);
-
- LttEvent *event = ltt_tracefile_get_event(tfc->tf);
-
- ret = ltt_event_position_compare((LttEventPosition*)event,
- ep);
+ int ret = 0;
+
+ if(pos->tfcp->len == 0) {
+ if(lttv_traceset_number(self->ts) == 0) return 0;
+ else return 1;
+ }
+ if(lttv_traceset_number(self->ts) == 0)
+ return -1;
+
+ for(i=0;i<pos->tfcp->len;i++) {
+ LttvTracefileContextPosition *tfcp =
+ &g_array_index(pos->tfcp, LttvTracefileContextPosition, i);
+
+ if(tfcp->used == FALSE) {
+ if(ltt_time_compare(tfcp->tfc->timestamp, ltt_time_infinite) < 0) {
+ ret = -1;
+ }
+ } else {
+ if(ltt_time_compare(tfcp->tfc->timestamp, ltt_time_infinite) == 0) {
+ ret = 1;
+ } else {
+ LttEvent *event = ltt_tracefile_get_event(tfcp->tfc->tf);
+
+ ret = ltt_event_position_compare((LttEventPosition*)event,
+ tfcp->event);
+ }
+ }
if(ret != 0) return ret;
}
const LttvTracesetContextPosition *pos2)
{
int i, j;
- int ret;
+ int ret = 0;
- for(i=0;i<pos1->ep->len;i++) {
- LttEventPosition *ep1 = g_array_index(pos1->ep, LttEventPosition*, i);
- LttTracefile *tf1 = ltt_event_position_tracefile(ep1);
+ if(ltt_time_compare(pos1->timestamp, ltt_time_infinite) == 0) {
+ if(ltt_time_compare(pos2->timestamp, ltt_time_infinite) == 0)
+ return 0;
+ else
+ return 1;
+ }
+ if(ltt_time_compare(pos2->timestamp, ltt_time_infinite) == 0)
+ return -1;
+
+ for(i=0;i<pos1->tfcp->len;i++) {
+ LttvTracefileContextPosition *tfcp1 =
+ &g_array_index(pos1->tfcp, LttvTracefileContextPosition, i);
- for(j=0;j<pos2->ep->len;j++) {
- LttEventPosition *ep2 = g_array_index(pos2->ep, LttEventPosition*, j);
- LttTracefile *tf2 = ltt_event_position_tracefile(ep2);
+ if(tfcp1->used == TRUE) {
+ for(j=0;j<pos2->tfcp->len;j++) {
+ LttvTracefileContextPosition *tfcp2 =
+ &g_array_index(pos2->tfcp, LttvTracefileContextPosition, j);
+
+ if(tfcp1->tfc == tfcp2->tfc) {
+ if(tfcp2->used == TRUE)
+ ret = ltt_event_position_compare(tfcp1->event, tfcp2->event);
+ else
+ ret = -1;
+
+ if(ret != 0) return ret;
+ }
+ }
+
+ } else {
+ for(j=0;j<pos2->tfcp->len;j++) {
+ LttvTracefileContextPosition *tfcp2 =
+ &g_array_index(pos2->tfcp, LttvTracefileContextPosition, j);
- if(tf1 == tf2) {
- ret = ltt_event_position_compare(ep1, ep2);
+ if(tfcp1->tfc == tfcp2->tfc)
+ if(tfcp2->used == TRUE) ret = 1;
if(ret != 0) return ret;
}
}
}
return 0;
-
}
return tfc;
}
+
+/* lttv_process_traceset_synchronize_tracefiles
+ *
+ * Use the sync_position field of the trace set context to synchronize each
+ * tracefile with the previously saved position.
+ *
+ * If no previous position has been saved, it simply does nothing.
+ */
+void lttv_process_traceset_synchronize_tracefiles(LttvTracesetContext *tsc)
+{
+ g_assert(lttv_process_traceset_seek_position(tsc, tsc->sync_position) == 0);
+}
+
+
+
+
+void lttv_process_traceset_get_sync_data(LttvTracesetContext *tsc)
+{
+ lttv_traceset_context_position_save(tsc, tsc->sync_position);
+}
+
+struct seek_back_data {
+ guint first_event; /* Index of the first event in the array : we will always
+ overwrite at this position : this is a circular array.
+ */
+ guint events_found;
+ guint n; /* number of events requested */
+ GPtrArray *array; /* array of LttvTracesetContextPositions pointers */
+ LttvFilter *filter1;
+ LttvFilter *filter2;
+ LttvFilter *filter3;
+ gpointer data;
+ check_handler *check;
+ gboolean *stop_flag;
+ guint raw_event_count;
+};
+
+static gint seek_back_event_hook(void *hook_data, void* call_data)
+{
+ struct seek_back_data *sd = (struct seek_back_data*)hook_data;
+ LttvTracefileContext *tfc = (LttvTracefileContext*)call_data;
+ LttvTracesetContext *tsc = tfc->t_context->ts_context;
+ LttvTracesetContextPosition *pos;
+
+ if(sd->check && sd->check(sd->raw_event_count, sd->stop_flag, sd->data))
+ return TRUE;
+ sd->raw_event_count++;
+
+ if(sd->filter1 != NULL && sd->filter1->head != NULL &&
+ !lttv_filter_tree_parse(sd->filter1->head,
+ ltt_tracefile_get_event(tfc->tf),
+ tfc->tf,
+ tfc->t_context->t,
+ tfc,NULL,NULL)) {
+ return FALSE;
+ }
+ if(sd->filter2 != NULL && sd->filter2->head != NULL &&
+ !lttv_filter_tree_parse(sd->filter2->head,
+ ltt_tracefile_get_event(tfc->tf),
+ tfc->tf,
+ tfc->t_context->t,
+ tfc,NULL,NULL)) {
+ return FALSE;
+ }
+ if(sd->filter3 != NULL && sd->filter3->head != NULL &&
+ !lttv_filter_tree_parse(sd->filter3->head,
+ ltt_tracefile_get_event(tfc->tf),
+ tfc->tf,
+ tfc->t_context->t,
+ tfc,NULL,NULL)) {
+ return FALSE;
+ }
+
+ pos = (LttvTracesetContextPosition*)g_ptr_array_index (sd->array,
+ sd->first_event);
+
+ lttv_traceset_context_position_save(tsc, pos);
+
+ if(sd->first_event >= sd->array->len - 1) sd->first_event = 0;
+ else sd->first_event++;
+
+ sd->events_found = min(sd->n, sd->events_found + 1);
+
+ return FALSE;
+}
+
+/* Seek back n events back from the current position.
+ *
+ * Parameters :
+ * @self The trace set context
+ * @n number of events to jump over
+ * @first_offset The initial offset value used.
+ * never put first_offset at ltt_time_zero.
+ * @time_seeker Function pointer of the function to use to seek time :
+ * either lttv_process_traceset_seek_time
+ * or lttv_state_traceset_seek_time_closest
+ * @filter The filter to call.
+ *
+ * Return value : the number of events found (might be lower than the number
+ * requested if beginning of traceset is reached).
+ *
+ * The first search will go back first_offset and try to find the last n events
+ * matching the filter. If there are not enough, it will try to go back from the
+ * new trace point from first_offset*2, and so on, until beginning of trace or n
+ * events are found.
+ *
+ * Note : this function does not take in account the LttvFilter : use the
+ * similar function found in state.c instead.
+ *
+ * Note2 : the caller must make sure that the LttvTracesetContext does not
+ * contain any hook, as process_traceset_middle is used in this routine.
+ */
+guint lttv_process_traceset_seek_n_backward(LttvTracesetContext *self,
+ guint n, LttTime first_offset,
+ seek_time_fct time_seeker,
+ check_handler *check,
+ gboolean *stop_flag,
+ LttvFilter *filter1,
+ LttvFilter *filter2,
+ LttvFilter *filter3,
+ gpointer data)
+{
+ if(lttv_traceset_number(self->ts) == 0) return 0;
+ g_assert(ltt_time_compare(first_offset, ltt_time_zero) != 0);
+
+ guint i;
+ LttvTracesetContextPosition *next_iter_end_pos =
+ lttv_traceset_context_position_new(self);
+ LttvTracesetContextPosition *end_pos =
+ lttv_traceset_context_position_new(self);
+ LttvTracesetContextPosition *saved_pos =
+ lttv_traceset_context_position_new(self);
+ LttTime time;
+ LttTime asked_time;
+ LttTime time_offset;
+ struct seek_back_data sd;
+ LttvHooks *hooks = lttv_hooks_new();
+
+ sd.first_event = 0;
+ sd.events_found = 0;
+ sd.array = g_ptr_array_sized_new(n);
+ sd.filter1 = filter1;
+ sd.filter2 = filter2;
+ sd.filter3 = filter3;
+ sd.data = data;
+ sd.n = n;
+ sd.check = check;
+ sd.stop_flag = stop_flag;
+ sd.raw_event_count = 0;
+ g_ptr_array_set_size(sd.array, n);
+ for(i=0;i<n;i++) {
+ g_ptr_array_index (sd.array, i) = lttv_traceset_context_position_new(self);
+ }
+
+ lttv_traceset_context_position_save(self, next_iter_end_pos);
+ lttv_traceset_context_position_save(self, saved_pos);
+ /* Get the current time from which we will offset */
+ time = lttv_traceset_context_position_get_time(next_iter_end_pos);
+ /* the position saved might be end of traceset... */
+ if(ltt_time_compare(time, self->time_span.end_time) > 0) {
+ time = self->time_span.end_time;
+ }
+ asked_time = time;
+ time_offset = first_offset;
+
+ lttv_hooks_add(hooks, seek_back_event_hook, &sd, LTTV_PRIO_DEFAULT);
+
+ lttv_process_traceset_begin(self, NULL, NULL, NULL, hooks, NULL);
+
+ while(1) {
+ /* stop criteria : - n events found
+ * - asked_time < beginning of trace */
+ if(ltt_time_compare(asked_time, self->time_span.start_time) < 0) break;
+
+ lttv_traceset_context_position_copy(end_pos, next_iter_end_pos);
+
+ /* We must seek the traceset back to time - time_offset */
+ /* this time becomes the new reference time */
+ time = ltt_time_sub(time, time_offset);
+ asked_time = time;
+
+ time_seeker(self, time);
+ lttv_traceset_context_position_save(self, next_iter_end_pos);
+ /* Resync the time in case of a seek_closest */
+ time = lttv_traceset_context_position_get_time(next_iter_end_pos);
+ if(ltt_time_compare(time, self->time_span.end_time) > 0) {
+ time = self->time_span.end_time;
+ }
+
+ /* Process the traceset, calling a hook which adds events
+ * to the array, overwriting the tail. It changes first_event and
+ * events_found too. */
+ /* We would like to have a clean context here : no other hook than our's */
+
+ lttv_process_traceset_middle(self, ltt_time_infinite,
+ G_MAXUINT, end_pos);
+
+ if(sd.events_found < n) {
+ if(sd.first_event > 0) {
+ /* Save the first position */
+ LttvTracesetContextPosition *pos =
+ (LttvTracesetContextPosition*)g_ptr_array_index (sd.array, 0);
+ lttv_traceset_context_position_copy(saved_pos, pos);
+ }
+ g_assert(n-sd.events_found <= sd.array->len);
+ /* Change array size to n - events_found */
+ for(i=n-sd.events_found;i<sd.array->len;i++) {
+ LttvTracesetContextPosition *pos =
+ (LttvTracesetContextPosition*)g_ptr_array_index (sd.array, i);
+ lttv_traceset_context_position_destroy(pos);
+ }
+ g_ptr_array_set_size(sd.array, n-sd.events_found);
+ sd.first_event = 0;
+
+ } else break; /* Second end criterion : n events found */
+
+ time_offset = ltt_time_mul(time_offset, BACKWARD_SEEK_MUL);
+ }
+
+ lttv_traceset_context_position_destroy(end_pos);
+ lttv_traceset_context_position_destroy(next_iter_end_pos);
+
+ lttv_process_traceset_end(self, NULL, NULL, NULL, hooks, NULL);
+
+ if(sd.events_found >= n) {
+ /* Seek the traceset to the first event in the circular array */
+ LttvTracesetContextPosition *pos =
+ (LttvTracesetContextPosition*)g_ptr_array_index (sd.array,
+ sd.first_event);
+ g_assert(lttv_process_traceset_seek_position(self, pos) == 0);
+ } else {
+ /* Will seek to the last saved position : in the worst case, it will be the
+ * original position (if events_found is 0) */
+ g_assert(lttv_process_traceset_seek_position(self, saved_pos) == 0);
+ }
+
+ for(i=0;i<sd.array->len;i++) {
+ LttvTracesetContextPosition *pos =
+ (LttvTracesetContextPosition*)g_ptr_array_index (sd.array, i);
+ lttv_traceset_context_position_destroy(pos);
+ }
+ g_ptr_array_free(sd.array, TRUE);
+
+ lttv_hooks_destroy(hooks);
+
+ lttv_traceset_context_position_destroy(saved_pos);
+
+ return sd.events_found;
+}
+
+
+struct seek_forward_data {
+ guint event_count; /* event counter */
+ guint n; /* requested number of events to jump over */
+ LttvFilter *filter1;
+ LttvFilter *filter2;
+ LttvFilter *filter3;
+ gpointer data;
+ check_handler *check;
+ gboolean *stop_flag;
+ guint raw_event_count; /* event counter */
+};
+
+static gint seek_forward_event_hook(void *hook_data, void* call_data)
+{
+ struct seek_forward_data *sd = (struct seek_forward_data*)hook_data;
+ LttvTracefileContext *tfc = (LttvTracefileContext*)call_data;
+
+ if(sd->check && sd->check(sd->raw_event_count, sd->stop_flag, sd->data))
+ return TRUE;
+ sd->raw_event_count++;
+
+ if(sd->filter1 != NULL && sd->filter1->head != NULL &&
+ !lttv_filter_tree_parse(sd->filter1->head,
+ ltt_tracefile_get_event(tfc->tf),
+ tfc->tf,
+ tfc->t_context->t,
+ tfc,NULL,NULL)) {
+ return FALSE;
+ }
+ if(sd->filter2 != NULL && sd->filter2->head != NULL &&
+ !lttv_filter_tree_parse(sd->filter2->head,
+ ltt_tracefile_get_event(tfc->tf),
+ tfc->tf,
+ tfc->t_context->t,
+ tfc,NULL,NULL)) {
+ return FALSE;
+ }
+ if(sd->filter3 != NULL && sd->filter3->head != NULL &&
+ !lttv_filter_tree_parse(sd->filter3->head,
+ ltt_tracefile_get_event(tfc->tf),
+ tfc->tf,
+ tfc->t_context->t,
+ tfc,NULL,NULL)) {
+ return FALSE;
+ }
+
+ sd->event_count++;
+ if(sd->event_count >= sd->n)
+ return TRUE;
+}
+
+/* Seek back n events forward from the current position (1 to n)
+ * 0 is ok too, but it will actually do nothing.
+ *
+ * Parameters :
+ * @self the trace set context
+ * @n number of events to jump over
+ * @filter filter to call.
+ *
+ * returns : the number of events jumped over (may be less than requested if end
+ * of traceset reached) */
+guint lttv_process_traceset_seek_n_forward(LttvTracesetContext *self,
+ guint n,
+ check_handler *check,
+ gboolean *stop_flag,
+ LttvFilter *filter1,
+ LttvFilter *filter2,
+ LttvFilter *filter3,
+ gpointer data)
+{
+ struct seek_forward_data sd;
+ sd.event_count = 0;
+ sd.n = n;
+ sd.filter1 = filter1;
+ sd.filter2 = filter2;
+ sd.filter3 = filter3;
+ sd.data = data;
+ sd.check = check;
+ sd.stop_flag = stop_flag;
+ sd.raw_event_count = 0;
+
+ if(sd.event_count >= sd.n) return sd.event_count;
+
+ LttvHooks *hooks = lttv_hooks_new();
+
+ lttv_hooks_add(hooks, seek_forward_event_hook, &sd, LTTV_PRIO_DEFAULT);
+
+ lttv_process_traceset_begin(self, NULL, NULL, NULL, hooks, NULL);
+
+ /* it will end on the end of traceset, or the fact that the
+ * hook returns TRUE.
+ */
+ lttv_process_traceset_middle(self, ltt_time_infinite,
+ G_MAXUINT, NULL);
+
+ /* Here, our position is either the end of traceset, or the exact position
+ * after n events : leave it like this. This might be placed on an event that
+ * will be filtered out, we don't care : all we know is that the following
+ * event filtered in will be the right one. */
+
+ lttv_process_traceset_end(self, NULL, NULL, NULL, hooks, NULL);
+
+ lttv_hooks_destroy(hooks);
+
+ return sd.event_count;
+}
+
+
projects / lttv.git / blobdiff