* MA 02111-1307, USA.
*/
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+#include <string.h>
#include <lttv/tracecontext.h>
#include <ltt/event.h>
#include <ltt/facility.h>
#include <ltt/trace.h>
#include <ltt/type.h>
+#include <errno.h>
+
+
+
+
+gint compare_tracefile(gconstpointer a, gconstpointer b)
+{
+ gint comparison = 0;
+
+ const LttvTracefileContext *trace_a = (const LttvTracefileContext *)a;
+ const LttvTracefileContext *trace_b = (const LttvTracefileContext *)b;
+
+ if(likely(trace_a != trace_b)) {
+ comparison = ltt_time_compare(trace_a->timestamp, trace_b->timestamp);
+ if(unlikely(comparison == 0)) {
+ if(trace_a->index < trace_b->index) comparison = -1;
+ else if(trace_a->index > trace_b->index) comparison = 1;
+ else if(trace_a->t_context->index < trace_b->t_context->index)
+ comparison = -1;
+ else if(trace_a->t_context->index > trace_b->t_context->index)
+ comparison = 1;
+ }
+ }
+ return comparison;
+}
+
+struct _LttvTracesetContextPosition {
+ GArray *ep; /* Array of LttEventPosition */
+ GArray *tfc; /* Array of corresponding
+ TracefileContext* */
+ 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)
{
/****************************************************************************
* lttv_traceset_context_compute_time_span
*
- * Keep the Time_Span is sync with on the fly addition and removal of traces
+ * Keep the time span is sync with on the fly addition and removal of traces
* in a trace set. It must be called each time a trace is added/removed from
* the traceset. It could be more efficient to call it only once a bunch
* of traces are loaded, but the calculation is not long, so it's not
* critical.
*
* Author : Xang Xiu Yang
- * Imported from gtkTraceSet.c by Mathieu Desnoyers
***************************************************************************/
static void lttv_traceset_context_compute_time_span(
LttvTracesetContext *self,
- TimeInterval *Time_Span)
+ TimeInterval *time_span)
{
LttvTraceset * traceset = self->ts;
int numTraces = lttv_traceset_number(traceset);
LttvTraceContext *tc;
LttTrace * trace;
- Time_Span->startTime.tv_sec = 0;
- Time_Span->startTime.tv_nsec = 0;
- Time_Span->endTime.tv_sec = 0;
- Time_Span->endTime.tv_nsec = 0;
+ time_span->start_time.tv_sec = 0;
+ time_span->start_time.tv_nsec = 0;
+ time_span->end_time.tv_sec = 0;
+ time_span->end_time.tv_nsec = 0;
for(i=0; i<numTraces;i++){
tc = self->traces[i];
ltt_trace_time_span_get(trace, &s, &e);
if(i==0){
- Time_Span->startTime = s;
- Time_Span->endTime = e;
+ time_span->start_time = s;
+ time_span->end_time = e;
}else{
- if(s.tv_sec < Time_Span->startTime.tv_sec ||
- (s.tv_sec == Time_Span->startTime.tv_sec
- && s.tv_nsec < Time_Span->startTime.tv_nsec))
- Time_Span->startTime = s;
- if(e.tv_sec > Time_Span->endTime.tv_sec ||
- (e.tv_sec == Time_Span->endTime.tv_sec &&
- e.tv_nsec > Time_Span->endTime.tv_nsec))
- Time_Span->endTime = e;
+ if(s.tv_sec < time_span->start_time.tv_sec
+ || (s.tv_sec == time_span->start_time.tv_sec
+ && s.tv_nsec < time_span->start_time.tv_nsec))
+ time_span->start_time = s;
+ if(e.tv_sec > time_span->end_time.tv_sec
+ || (e.tv_sec == time_span->end_time.tv_sec
+ && e.tv_nsec > time_span->end_time.tv_nsec))
+ time_span->end_time = e;
}
}
}
+static void init_tracefile_context(LttTracefile *tracefile,
+ LttvTraceContext *tc)
+{
+ LttvTracefileContext *tfc;
+ LttvTracesetContext *tsc = tc->ts_context;
+
+ tfc = LTTV_TRACESET_CONTEXT_GET_CLASS(tsc)->new_tracefile_context(tsc);
+
+ tfc->index = tc->tracefiles->len;
+ tc->tracefiles = g_array_append_val(tc->tracefiles, tfc);
+
+ tfc->tf = tracefile;
+
+ tfc->t_context = tc;
+ tfc->event = lttv_hooks_new();
+ tfc->event_by_id = lttv_hooks_by_id_new();
+ tfc->a = g_object_new(LTTV_ATTRIBUTE_TYPE, NULL);
+}
+
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;
- LttvTracefileContext *tfc;
+ GData **tracefiles_groups;
- LttTime null_time = {0, 0};
+ struct compute_tracefile_group_args args;
nb_trace = lttv_traceset_number(ts);
self->ts = ts;
self->traces = g_new(LttvTraceContext *, nb_trace);
- self->before = lttv_hooks_new();
- self->after = lttv_hooks_new();
self->a = g_object_new(LTTV_ATTRIBUTE_TYPE, NULL);
self->ts_a = lttv_traceset_attribute(ts);
+ self->sync_position = lttv_traceset_context_position_new();
for(i = 0 ; i < nb_trace ; i++) {
tc = LTTV_TRACESET_CONTEXT_GET_CLASS(self)->new_trace_context(self);
self->traces[i] = tc;
tc->index = i;
tc->vt = lttv_traceset_get(ts, i);
tc->t = lttv_trace(tc->vt);
- tc->check = lttv_hooks_new();
- tc->before = lttv_hooks_new();
- tc->after = lttv_hooks_new();
tc->a = g_object_new(LTTV_ATTRIBUTE_TYPE, NULL);
tc->t_a = lttv_trace_attribute(tc->vt);
+ tc->tracefiles = g_array_sized_new(FALSE, TRUE,
+ 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;
+
+ g_datalist_foreach(tracefiles_groups,
+ (GDataForeachFunc)compute_tracefile_group,
+ &args);
+ }
+
+#if 0
nb_control = ltt_trace_control_tracefile_number(tc->t);
nb_per_cpu = ltt_trace_per_cpu_tracefile_number(tc->t);
nb_tracefile = nb_control + nb_per_cpu;
tfc->control = FALSE;
tfc->tf = ltt_trace_per_cpu_tracefile_get(tc->t, j - nb_control);
}
+
tfc->t_context = tc;
- tfc->check = lttv_hooks_new();
- tfc->before = lttv_hooks_new();
- tfc->after = lttv_hooks_new();
- tfc->check_event = lttv_hooks_new();
- tfc->before_event = lttv_hooks_new();
- tfc->before_event_by_id = lttv_hooks_by_id_new();
- tfc->after_event = lttv_hooks_new();
- tfc->after_event_by_id = lttv_hooks_by_id_new();
+ tfc->e = ltt_event_new();
+ tfc->event = lttv_hooks_new();
+ tfc->event_by_id = lttv_hooks_by_id_new();
tfc->a = g_object_new(LTTV_ATTRIBUTE_TYPE, NULL);
}
+#endif //0
+
}
- lttv_process_traceset_seek_time(self, null_time);
- /*CHECK why dynamically allocate the time span... and the casing is wroNg*/
- self->Time_Span = g_new(TimeInterval,1);
- lttv_traceset_context_compute_time_span(self, self->Time_Span);
- self->e = NULL;
+ 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;
- g_free(self->Time_Span);
-
- lttv_hooks_destroy(self->before);
- lttv_hooks_destroy(self->after);
- //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);
for(i = 0 ; i < nb_trace ; i++) {
tc = self->traces[i];
- lttv_hooks_destroy(tc->check);
- lttv_hooks_destroy(tc->before);
- lttv_hooks_destroy(tc->after);
g_object_unref(tc->a);
- nb_tracefile = ltt_trace_control_tracefile_number(tc->t) +
- ltt_trace_per_cpu_tracefile_number(tc->t);
+ nb_tracefile = tc->tracefiles->len;
for(j = 0 ; j < nb_tracefile ; j++) {
- tfc = tc->tracefiles[j];
- lttv_hooks_destroy(tfc->check);
- lttv_hooks_destroy(tfc->before);
- lttv_hooks_destroy(tfc->after);
- lttv_hooks_destroy(tfc->check_event);
- lttv_hooks_destroy(tfc->before_event);
- lttv_hooks_by_id_destroy(tfc->before_event_by_id);
- lttv_hooks_destroy(tfc->after_event);
- lttv_hooks_by_id_destroy(tfc->after_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_free(tc->tracefiles);
+ g_array_free(tc->tracefiles, TRUE);
g_object_unref(tc);
}
g_free(self->traces);
void lttv_traceset_context_add_hooks(LttvTracesetContext *self,
- LttvHooks *before_traceset,
- LttvHooks *after_traceset,
- LttvHooks *check_trace,
+ LttvHooks *before_traceset,
LttvHooks *before_trace,
- LttvHooks *after_trace,
- LttvHooks *check_tracefile,
LttvHooks *before_tracefile,
- LttvHooks *after_tracefile,
- LttvHooks *check_event,
- LttvHooks *before_event,
- LttvHooks *after_event)
+ LttvHooks *event,
+ LttvHooksById *event_by_id)
{
LttvTraceset *ts = self->ts;
- guint i, j, nb_trace, nb_tracefile;
+ guint i, nb_trace;
LttvTraceContext *tc;
- LttvTracefileContext *tfc;
-
- void *hook_data;
+ lttv_hooks_call(before_traceset, self);
- lttv_hooks_add_list(self->before, before_traceset);
- lttv_hooks_add_list(self->after, after_traceset);
nb_trace = lttv_traceset_number(ts);
for(i = 0 ; i < nb_trace ; i++) {
tc = self->traces[i];
- lttv_hooks_add_list(tc->check, check_trace);
- lttv_hooks_add_list(tc->before, before_trace);
- lttv_hooks_add_list(tc->after, after_trace);
- nb_tracefile = ltt_trace_control_tracefile_number(tc->t) +
- ltt_trace_per_cpu_tracefile_number(tc->t);
-
- for(j = 0 ; j < nb_tracefile ; j++) {
- tfc = tc->tracefiles[j];
- lttv_hooks_add_list(tfc->check, check_tracefile);
- lttv_hooks_add_list(tfc->before, before_tracefile);
- lttv_hooks_add_list(tfc->after, after_tracefile);
- lttv_hooks_add_list(tfc->check_event, check_event);
- lttv_hooks_add_list(tfc->before_event, before_event);
- lttv_hooks_add_list(tfc->after_event, after_event);
- }
+ lttv_trace_context_add_hooks(tc,
+ before_trace,
+ before_tracefile,
+ event,
+ event_by_id);
}
}
void lttv_traceset_context_remove_hooks(LttvTracesetContext *self,
- LttvHooks *before_traceset,
LttvHooks *after_traceset,
- LttvHooks *check_trace,
- LttvHooks *before_trace,
LttvHooks *after_trace,
- LttvHooks *check_tracefile,
- LttvHooks *before_tracefile,
LttvHooks *after_tracefile,
- LttvHooks *check_event,
- LttvHooks *before_event,
- LttvHooks *after_event)
+ LttvHooks *event,
+ LttvHooksById *event_by_id)
{
+
LttvTraceset *ts = self->ts;
- guint i, j, nb_trace, nb_tracefile;
+ guint i, nb_trace;
LttvTraceContext *tc;
- LttvTracefileContext *tfc;
-
- void *hook_data;
-
- lttv_hooks_remove_list(self->before, before_traceset);
- lttv_hooks_remove_list(self->after, after_traceset);
nb_trace = lttv_traceset_number(ts);
for(i = 0 ; i < nb_trace ; i++) {
tc = self->traces[i];
- lttv_hooks_remove_list(tc->check, check_trace);
- lttv_hooks_remove_list(tc->before, before_trace);
- lttv_hooks_remove_list(tc->after, after_trace);
- nb_tracefile = ltt_trace_control_tracefile_number(tc->t) +
- ltt_trace_per_cpu_tracefile_number(tc->t);
-
- for(j = 0 ; j < nb_tracefile ; j++) {
- tfc = tc->tracefiles[j];
- lttv_hooks_remove_list(tfc->check, check_tracefile);
- lttv_hooks_remove_list(tfc->before, before_tracefile);
- lttv_hooks_remove_list(tfc->after, after_tracefile);
- lttv_hooks_remove_list(tfc->check_event, check_event);
- lttv_hooks_remove_list(tfc->before_event, before_event);
- lttv_hooks_remove_list(tfc->after_event, after_event);
- }
+ lttv_trace_context_remove_hooks(tc,
+ after_trace,
+ after_tracefile,
+ event,
+ event_by_id);
}
+
+ lttv_hooks_call(after_traceset, self);
+
+
}
-void lttv_trace_context_add_hooks(LttvTraceContext *tc,
- LttvHooks *check_trace,
- LttvHooks *before_trace,
- LttvHooks *after_trace)
+void lttv_trace_context_add_hooks(LttvTraceContext *self,
+ LttvHooks *before_trace,
+ LttvHooks *before_tracefile,
+ LttvHooks *event,
+ LttvHooksById *event_by_id)
{
- lttv_hooks_add_list(tc->check, check_trace);
- lttv_hooks_add_list(tc->before, before_trace);
- lttv_hooks_add_list(tc->after, after_trace);
+ guint i, nb_tracefile;
+
+ 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,
+ before_tracefile,
+ event,
+ event_by_id);
+ }
}
-void lttv_trace_context_remove_hooks(LttvTraceContext *tc,
- LttvHooks *check_trace,
- LttvHooks *before_trace,
- LttvHooks *after_trace)
+
+
+void lttv_trace_context_remove_hooks(LttvTraceContext *self,
+ LttvHooks *after_trace,
+ LttvHooks *after_tracefile,
+ LttvHooks *event,
+ LttvHooksById *event_by_id)
{
- lttv_hooks_remove_list(tc->check, check_trace);
- lttv_hooks_remove_list(tc->before, before_trace);
- lttv_hooks_remove_list(tc->after, after_trace);
+ guint i, nb_tracefile;
+
+ 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,
+ after_tracefile,
+ event,
+ event_by_id);
+ }
+
+ lttv_hooks_call(after_trace, self);
}
-void lttv_tracefile_context_add_hooks(LttvTracefileContext *tfc,
- LttvHooks *check_tracefile,
- LttvHooks *before_tracefile,
- LttvHooks *after_tracefile,
- LttvHooks *check_event,
- LttvHooks *before_event,
- LttvHooks *after_event)
+void lttv_tracefile_context_add_hooks(LttvTracefileContext *self,
+ LttvHooks *before_tracefile,
+ LttvHooks *event,
+ LttvHooksById *event_by_id)
{
- lttv_hooks_add_list(tfc->check, check_tracefile);
- lttv_hooks_add_list(tfc->before, before_tracefile);
- lttv_hooks_add_list(tfc->after, after_tracefile);
- lttv_hooks_add_list(tfc->check_event, check_event);
- lttv_hooks_add_list(tfc->before_event, before_event);
- lttv_hooks_add_list(tfc->after_event, after_event);
+ guint i, index;
+
+ LttvHooks *hook;
+
+ lttv_hooks_call(before_tracefile, self);
+ lttv_hooks_add_list(self->event, event);
+ if(event_by_id != NULL) {
+ for(i = 0; i < event_by_id->array->len; i++) {
+ index = g_array_index(event_by_id->array, guint, i);
+ hook = lttv_hooks_by_id_find(self->event_by_id, index);
+ lttv_hooks_add_list(hook, lttv_hooks_by_id_get(event_by_id, index));
+ }
+ }
}
-void lttv_tracefile_context_remove_hooks(LttvTracefileContext *tfc,
- LttvHooks *check_tracefile,
- LttvHooks *before_tracefile,
- LttvHooks *after_tracefile,
- LttvHooks *check_event,
- LttvHooks *before_event,
- LttvHooks *after_event)
+void lttv_tracefile_context_remove_hooks(LttvTracefileContext *self,
+ LttvHooks *after_tracefile,
+ LttvHooks *event,
+ LttvHooksById *event_by_id)
{
- lttv_hooks_remove_list(tfc->check, check_tracefile);
- lttv_hooks_remove_list(tfc->before, before_tracefile);
- lttv_hooks_remove_list(tfc->after, after_tracefile);
- lttv_hooks_remove_list(tfc->check_event, check_event);
- lttv_hooks_remove_list(tfc->before_event, before_event);
- lttv_hooks_remove_list(tfc->after_event, after_event);
+ guint i, index;
+
+ LttvHooks *hook;
+
+ lttv_hooks_remove_list(self->event, event);
+ if(event_by_id != NULL) {
+ for(i = 0; i < event_by_id->array->len; i++) {
+ index = g_array_index(event_by_id->array, guint, i);
+ hook = lttv_hooks_by_id_get(self->event_by_id, index);
+ if(hook != NULL)
+ lttv_hooks_remove_list(hook, lttv_hooks_by_id_get(event_by_id, index));
+ }
+ }
+
+ lttv_hooks_call(after_tracefile, self);
}
+
+
void lttv_tracefile_context_add_hooks_by_id(LttvTracefileContext *tfc,
unsigned i,
- LttvHooks *before_event_by_id,
- LttvHooks *after_event_by_id)
+ LttvHooks *event_by_id)
{
LttvHooks * h;
- h = lttv_hooks_by_id_find(tfc->before_event_by_id, i);
- lttv_hooks_add_list(h, before_event_by_id);
- h = lttv_hooks_by_id_find(tfc->after_event_by_id, i);
- lttv_hooks_add_list(h, after_event_by_id);
+ h = lttv_hooks_by_id_find(tfc->event_by_id, i);
+ lttv_hooks_add_list(h, event_by_id);
}
void lttv_tracefile_context_remove_hooks_by_id(LttvTracefileContext *tfc,
unsigned i)
{
- lttv_hooks_by_id_remove(tfc->before_event_by_id, i);
- lttv_hooks_by_id_remove(tfc->after_event_by_id, i);
+ lttv_hooks_by_id_remove(tfc->event_by_id, i);
}
static LttvTracesetContext *
NULL, /* class_data */
sizeof (LttvTracesetContext),
0, /* n_preallocs */
- (GInstanceInitFunc) traceset_context_instance_init /* instance_init */
+ (GInstanceInitFunc) traceset_context_instance_init, /* instance_init */
+ NULL /* Value handling */
};
type = g_type_register_static (G_TYPE_OBJECT, "LttvTracesetContextType",
NULL, /* class_data */
sizeof (LttvTraceContext),
0, /* n_preallocs */
- (GInstanceInitFunc) trace_context_instance_init /* instance_init */
+ (GInstanceInitFunc) trace_context_instance_init, /* instance_init */
+ NULL /* Value handling */
};
type = g_type_register_static (G_TYPE_OBJECT, "LttvTraceContextType",
NULL, /* class_data */
sizeof (LttvTracefileContext),
0, /* n_preallocs */
- (GInstanceInitFunc) tracefile_context_instance_init /* instance_init */
+ (GInstanceInitFunc) tracefile_context_instance_init, /* instance_init */
+ NULL /* Value handling */
};
type = g_type_register_static (G_TYPE_OBJECT, "LttvTracefileContextType",
}
-gint compare_tracefile(gconstpointer a, gconstpointer b)
-{
- gint comparison;
-
- LttvTracefileContext *trace_a = (LttvTracefileContext *)a;
-
- LttvTracefileContext *trace_b = (LttvTracefileContext *)b;
-
- if(trace_a == trace_b) return 0;
- comparison = ltt_time_compare(trace_a->timestamp, trace_b->timestamp);
- if(comparison != 0) return comparison;
- if(trace_a->index < trace_b->index) return -1;
- else if(trace_a->index > trace_b->index) return 1;
- if(trace_a->t_context->index < trace_b->t_context->index) return -1;
- else if(trace_a->t_context->index > trace_b->t_context->index) return 1;
- g_assert(FALSE);
-}
-
-gboolean get_first(gpointer key, gpointer value, gpointer user_data) {
+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;
-void lttv_process_traceset_begin(LttvTracesetContext *self, LttTime end)
-{
- guint i, j, nbi, nb_tracefile;
-
- LttvTraceContext *tc;
-
- LttvTracefileContext *tfc;
+static gboolean test_tree(gpointer key, gpointer value, gpointer user_data) {
- /* Call all before_traceset, before_trace, and before_tracefile hooks.
- For all qualifying tracefiles, seek to the start time, create a context,
- read one event and insert in the pqueue based on the event time. */
+ LttvTracefileContext *tfc = (LttvTracefileContext *)key;
- lttv_hooks_call(self->before, self);
- nbi = lttv_traceset_number(self->ts);
- self->pqueue = g_tree_new(compare_tracefile);
+ 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;
- for(i = 0 ; i < nbi ; i++) {
- tc = self->traces[i];
+
+ //g_assert(((LttvTracefileContext *)user_data) != (LttvTracefileContext *)value);
+ return FALSE;
+}
+#endif //DEBUG
- if(!lttv_hooks_call_check(tc->check, tc)) {
- lttv_hooks_call(tc->before, tc);
- nb_tracefile = ltt_trace_control_tracefile_number(tc->t) +
- ltt_trace_per_cpu_tracefile_number(tc->t);
- for(j = 0 ; j < nb_tracefile ; j++) {
- tfc = tc->tracefiles[j];
- if(!lttv_hooks_call_check(tfc->check, tfc)) {
- lttv_hooks_call(tfc->before, tfc);
+void lttv_process_traceset_begin(LttvTracesetContext *self,
+ LttvHooks *before_traceset,
+ LttvHooks *before_trace,
+ LttvHooks *before_tracefile,
+ LttvHooks *event,
+ LttvHooksById *event_by_id)
+{
- if(tfc->e != NULL) {
- if(tfc->timestamp.tv_sec < end.tv_sec ||
- (tfc->timestamp.tv_sec == end.tv_sec &&
- tfc->timestamp.tv_nsec <= end.tv_nsec)) {
- g_tree_insert(self->pqueue, tfc, tfc);
- }
- }
- }
- }
- }
- }
+ /* simply add hooks in context. _before hooks are called by add_hooks. */
+ /* It calls all before_traceset, before_trace, and before_tracefile hooks. */
+ lttv_traceset_context_add_hooks(self,
+ before_traceset,
+ before_trace,
+ before_tracefile,
+ event,
+ event_by_id);
+
}
+enum read_state { LAST_NONE, LAST_OK, LAST_EMPTY };
-guint lttv_process_traceset_middle(LttvTracesetContext *self, LttTime end,
- unsigned nb_events)
+/* Note : a _middle must be preceded from a _seek or another middle */
+guint lttv_process_traceset_middle(LttvTracesetContext *self,
+ LttTime end,
+ guint nb_events,
+ const LttvTracesetContextPosition *end_position)
{
GTree *pqueue = self->pqueue;
- guint id;
-
- LttvTraceContext *tc;
+ guint fac_id, ev_id, id;
LttvTracefileContext *tfc;
- LttEvent *event;
-
+ LttEvent *e;
+
unsigned count = 0;
- LttTime previous_timestamp = {0, 0};
+ guint read_ret;
+
+ enum read_state last_read_state = LAST_NONE;
+
+ gboolean last_ret = FALSE; /* 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
unless the tracefile is finished or the event is later than the
- start time. */
+ end time. */
while(TRUE) {
tfc = NULL;
g_tree_foreach(pqueue, get_first, &tfc);
- if(tfc == NULL)
+ /* End of traceset : tfc is NULL */
+ if(unlikely(tfc == NULL))
{
- self->e = event;
return count;
}
- /* Have we reached the maximum number of events specified? However,
- continue for all the events with the same time stamp (CHECK?). Then,
- empty the queue and break from the loop. */
-
- if(count >= nb_events &&
- ltt_time_compare(tfc->timestamp, previous_timestamp) != 0)
+ /* Have we reached :
+ * - the maximum number of events specified?
+ * - the end position ?
+ * - the end time ?
+ * then the read is finished. We leave the queue in the same state and
+ * break the loop.
+ */
+
+ if(unlikely(last_ret == TRUE ||
+ ((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))
{
- self->e = event;
return count;
}
-
- previous_timestamp = tfc->timestamp;
-
-
+
/* 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);
- count++;
-
- if(!lttv_hooks_call(tfc->check_event, tfc)) {
- id = ltt_event_eventtype_id(tfc->e);
- lttv_hooks_call(lttv_hooks_by_id_get(tfc->before_event_by_id, id), tfc);
- lttv_hooks_call(tfc->before_event, tfc);
- lttv_hooks_call(lttv_hooks_by_id_get(tfc->after_event_by_id, id), tfc);
- lttv_hooks_call(tfc->after_event, tfc);
- }
- event = ltt_tracefile_read(tfc->tf);
- if(event != NULL) {
- tfc->e = event;
- tfc->timestamp = ltt_event_time(event);
- if(tfc->timestamp.tv_sec < end.tv_sec ||
- (tfc->timestamp.tv_sec == end.tv_sec && tfc->timestamp.tv_nsec <= end.tv_nsec))
- g_tree_insert(pqueue, tfc, 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++;
+
+ fac_id = ltt_event_facility_id(e);
+ ev_id = ltt_event_eventtype_id(e);
+ id = GET_HOOK_ID(fac_id, ev_id);
+ last_ret = lttv_hooks_call_merge(tfc->event, tfc,
+ lttv_hooks_by_id_get(tfc->event_by_id, id), tfc);
}
- }
-}
-
-
-void lttv_process_traceset_end(LttvTracesetContext *self)
-{
- guint i, j, nbi, nb_tracefile;
-
- LttvTraceContext *tc;
-
- LttvTracefileContext *tfc;
-
- /* Call all after_traceset, after_trace, and after_tracefile hooks. */
-
- nbi = lttv_traceset_number(self->ts);
-
- for(i = 0 ; i < nbi ; i++) {
- tc = self->traces[i];
-
- /* The check hooks are called again to avoid memorizing the results
- obtained at the beginning. CHECK if it poses a problem */
-
- if(!lttv_hooks_call_check(tc->check, tc)) {
- nb_tracefile = ltt_trace_control_tracefile_number(tc->t) +
- ltt_trace_per_cpu_tracefile_number(tc->t);
-
- for(j = 0 ; j < nb_tracefile ; j++) {
- tfc = tc->tracefiles[j];
-
- if(!lttv_hooks_call_check(tfc->check, tfc)) {
- lttv_hooks_call(tfc->after, tfc);
- }
- }
- lttv_hooks_call(tc->after, tc);
+
+ 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");
}
}
- lttv_hooks_call(self->after, self);
-
- /* Empty and free the pqueue */
-
- while(TRUE){
- tfc = NULL;
- g_tree_foreach(self->pqueue, get_first, &tfc);
- if(tfc == NULL) break;
- g_tree_remove(self->pqueue, &(tfc->timestamp));
- }
- g_tree_destroy(self->pqueue);
}
-void lttv_process_traceset(LttvTracesetContext *self, LttTime end,
- unsigned nb_events)
+void lttv_process_traceset_end(LttvTracesetContext *self,
+ LttvHooks *after_traceset,
+ LttvHooks *after_trace,
+ LttvHooks *after_tracefile,
+ LttvHooks *event,
+ LttvHooksById *event_by_id)
{
- lttv_process_traceset_begin(self, end);
- lttv_process_traceset_middle(self, end, nb_events);
- lttv_process_traceset_end(self);
+ /* Remove hooks from context. _after hooks are called by remove_hooks. */
+ /* It calls all after_traceset, after_trace, and after_tracefile hooks. */
+ lttv_traceset_context_remove_hooks(self,
+ after_traceset,
+ after_trace,
+ after_tracefile,
+ event,
+ event_by_id);
}
-
+/* 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.
+ *
+ * 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;
- LttvTracefileContext *tfc;
+ gint ret;
+
+ LttvTracefileContext **tfc;
- LttEvent *event;
+ nb_tracefile = self->tracefiles->len;
- nb_tracefile = ltt_trace_control_tracefile_number(self->t) +
- ltt_trace_per_cpu_tracefile_number(self->t);
+ GTree *pqueue = self->ts_context->pqueue;
for(i = 0 ; i < nb_tracefile ; i++) {
- tfc = self->tracefiles[i];
- ltt_tracefile_seek_time(tfc->tf, start);
- event = ltt_tracefile_read(tfc->tf);
- tfc->e = event;
- if(event != NULL) tfc->timestamp = ltt_event_time(event);
+ 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");
+
+ if(ret == 0) { /* not ERANGE especially */
+ (*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];
}
+gboolean lttv_process_traceset_seek_position(LttvTracesetContext *self,
+ const LttvTracesetContextPosition *pos)
+{
+ guint i;
+
+ /* If a position is set, seek the traceset to this position */
+ if(ltt_time_compare(pos->timestamp, ltt_time_infinite) != 0) {
+ 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);
+ if(*ep != NULL) {
+ if(ltt_tracefile_seek_position((*tfc)->tf, *ep) != 0)
+ return 1;
+ (*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(self->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_position");
+ g_tree_foreach(self->pqueue, test_tree, NULL);
+#endif //DEBUG
+
+
+
+ return 0;
+}
+
+
+
static LttField *
-find_field(LttEventType *et, const char *field)
+find_field(LttEventType *et, const GQuark field)
{
LttType *t;
guint i, nb;
- char *name;
-
- if(field == NULL) return NULL;
+ 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(strcmp(name, field) == 0) break;
+ if(name == field) break;
}
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);
+}
-void
-lttv_trace_find_hook(LttTrace *t, char *facility, char *event_type,
- char *field1, char *field2, char *field3, LttvHook h, LttvTraceHook *th)
+/* 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)
+{
+ g_assert(th->fac_list->len > 0);
+ return g_array_index(th->fac_list, LttvTraceHookByFacility*, 0);
+}
+
+
+/* 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, gpointer hook_data,
+ LttvTraceHook *th)
{
LttFacility *f;
- LttEventType *et;
+ LttEventType *et, *first_et;
+
+ GArray *facilities;
+
+ guint i, fac_id, ev_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;
+
+ ev_id = ltt_eventtype_id(et);
+
+ thf->h = h;
+ thf->id = GET_HOOK_ID(fac_id, ev_id);
+ thf->f1 = find_field(et, field1);
+ thf->f2 = find_field(et, field2);
+ thf->f3 = find_field(et, field3);
+ thf->hook_data = hook_data;
+
+ first_thf = thf;
+ first_et = et;
+
+ /* 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;
+ ev_id = ltt_eventtype_id(et);
+ thf->h = h;
+ thf->id = GET_HOOK_ID(fac_id, ev_id);
+ 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;
+ thf->hook_data = hook_data;
+ }
+
+ 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;
+}
+
+void lttv_trace_hook_destroy(LttvTraceHook *th)
+{
+ g_array_free(th->fac_index, TRUE);
+ g_array_free(th->fac_list, TRUE);
+}
+
+
+LttvTracesetContextPosition *lttv_traceset_context_position_new()
+{
+ 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);
+ pos->timestamp = ltt_time_infinite;
+ return pos;
+}
+
+/* Save all positions, the ones with infinite time will have NULL
+ * ep. */
+void lttv_traceset_context_position_save(const LttvTracesetContext *self,
+ LttvTracesetContextPosition *pos)
+{
+ guint i;
+ guint num_traces = lttv_traceset_number(self->ts);
+
+ pos->tfc = g_array_set_size(pos->tfc, 0);
+ pos->ep = g_array_set_size(pos->ep, 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++) {
+ LttvTracefileContext **tfc = &g_array_index(tracefiles,
+ LttvTracefileContext*, j);
+
+ LttEvent *event = ltt_tracefile_get_event((*tfc)->tf);
+ LttEventPosition *ep;
+
+ if(ltt_time_compare((*tfc)->timestamp, ltt_time_infinite) != 0) {
+ ep = ltt_event_position_new();
+ ltt_event_position(event, ep);
+ if(ltt_time_compare((*tfc)->timestamp, pos->timestamp) < 0)
+ pos->timestamp = (*tfc)->timestamp;
+ } else {
+ ep = NULL;
+ }
+ g_array_append_val(pos->tfc, *tfc);
+ g_array_append_val(pos->ep, ep);
+ }
+
+ }
+}
+
+void lttv_traceset_context_position_destroy(LttvTracesetContextPosition *pos)
+{
+ int i;
+ LttEventPosition **ep;
+
+ for(i=0;i<pos->ep->len;i++) {
+ ep = &g_array_index(pos->ep, LttEventPosition*, i);
+ if(*ep != NULL)
+ g_free(*ep);
+ }
+ g_array_free(pos->ep, TRUE);
+ g_array_free(pos->tfc, TRUE);
+ g_free(pos);
+}
+
+void lttv_traceset_context_position_copy(LttvTracesetContextPosition *dest,
+ const LttvTracesetContextPosition *src)
+{
+ int i;
+ LttEventPosition **src_ep, **dest_ep;
+
+ dest->ep = g_array_set_size(dest->ep, src->ep->len);
+ dest->tfc = g_array_set_size(dest->tfc, src->tfc->len);
+
+ for(i=0;i<src->ep->len;i++) {
+ src_ep = &g_array_index(src->ep, LttEventPosition*, i);
+ dest_ep = &g_array_index(dest->ep, LttEventPosition*, i);
+ if(*src_ep != NULL) {
+ *dest_ep = ltt_event_position_new();
+ ltt_event_position_copy(
+ *dest_ep,
+ *src_ep);
+ } else
+ *dest_ep = NULL;
+ }
+ for(i=0;i<src->tfc->len;i++) {
+ g_array_index(dest->tfc, LttvTracefileContext*, i) =
+ g_array_index(src->tfc, LttvTracefileContext*, i);
+ }
+ dest->timestamp = src->timestamp;
+}
+
+gint lttv_traceset_context_ctx_pos_compare(const LttvTracesetContext *self,
+ const LttvTracesetContextPosition *pos)
+{
+ int i;
+ int ret = 0;
+
+ if(pos->ep->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->ep->len;i++) {
+ LttEventPosition *ep = g_array_index(pos->ep, LttEventPosition*, i);
+ LttvTracefileContext *tfc =
+ g_array_index(pos->tfc, LttvTracefileContext*, i);
+
+ if(ep == NULL) {
+ if(ltt_time_compare(tfc->timestamp, ltt_time_infinite) != 0) {
+ ret = -1;
+ }
+ } else {
+ if(ltt_time_compare(tfc->timestamp, ltt_time_infinite) == 0) {
+ ret = 1;
+ } else {
+ LttEvent *event = ltt_tracefile_get_event(tfc->tf);
+
+ ret = ltt_event_position_compare((LttEventPosition*)event,
+ ep);
+ }
+ }
+ if(ret != 0) return ret;
+
+ }
+ return 0;
+}
- guint nb, pos, i;
- char *name;
+gint lttv_traceset_context_pos_pos_compare(
+ const LttvTracesetContextPosition *pos1,
+ const LttvTracesetContextPosition *pos2)
+{
+ int i, j;
+ int ret;
+
+ if(pos1->ep->len == 0) {
+ if(pos2->ep->len == 0) return 0;
+ else return 1;
+ }
+ if(pos2->ep->len == 0)
+ return -1;
+
+ for(i=0;i<pos1->ep->len;i++) {
+ LttEventPosition *ep1 = g_array_index(pos1->ep, LttEventPosition*, i);
+ LttvTracefileContext *tfc1 = g_array_index(pos1->tfc,
+ LttvTracefileContext*, i);
+
+ if(ep1 != NULL) {
+ for(j=0;j<pos2->ep->len;j++) {
+ LttEventPosition *ep2 = g_array_index(pos2->ep, LttEventPosition*, j);
+ LttvTracefileContext *tfc2 = g_array_index(pos2->tfc,
+ LttvTracefileContext*, j);
+ if(tfc1 == tfc2) {
+ if(ep2 != NULL)
+ ret = ltt_event_position_compare(ep1, ep2);
+ else
+ ret = -1;
+
+ if(ret != 0) return ret;
+ }
+ }
+ } else {
+ for(j=0;j<pos2->ep->len;j++) {
+ LttEventPosition *ep2 = g_array_index(pos2->ep, LttEventPosition*, j);
+ LttvTracefileContext *tfc2 = g_array_index(pos2->tfc,
+ LttvTracefileContext*, j);
+ if(tfc1 == tfc2) {
+ if(ep2 != NULL) ret = 1;
+ }
+ }
+ }
+ }
+ return 0;
+}
- nb = ltt_trace_facility_find(t, facility, &pos);
- if(nb < 1) g_error("No %s facility", facility);
- f = ltt_trace_facility_get(t, pos);
- et = ltt_facility_eventtype_get_by_name(f, event_type);
- if(et == NULL) g_error("Event %s does not exist", event_type);
- th->h = h;
- th->id = ltt_eventtype_id(et);
- th->f1 = find_field(et, field1);
- th->f2 = find_field(et, field2);
- th->f3 = find_field(et, field3);
+LttTime lttv_traceset_context_position_get_time(
+ const LttvTracesetContextPosition *pos)
+{
+ return pos->timestamp;
}
+LttvTracefileContext *lttv_traceset_context_get_current_tfc(LttvTracesetContext *self)
+{
+ GTree *pqueue = self->pqueue;
+ LttvTracefileContext *tfc = NULL;
+
+ g_tree_foreach(pqueue, get_first, &tfc);
+
+ 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);
+}
+
projects / lttv.git / blobdiff