/* set the offset of the fields belonging to the event,
need the information of the archecture */
-void setFieldsOffset(LttTracefile *tf,LttEventType *evT,void *evD,LttTrace *t);
+void set_fields_offsets(LttTracefile *tf, LttEventType *event_type);
+size_t get_fields_offsets(LttTracefile *tf, LttEventType *event_type, void *data);
-/* get the size of the field type according to the archtecture's
- size and endian type(info of the archecture) */
-static inline gint getFieldtypeSize(LttTracefile * tf,
- LttEventType * evT, gint offsetRoot,
- gint offsetParent, LttField *fld, void *evD, LttTrace* t);
+/* get the size of the field type according to
+ * The facility size information. */
+static inline void preset_field_type_size(LttTracefile *tf,
+ LttEventType *event_type,
+ off_t offset_root, off_t offset_parent,
+ enum field_status *fixed_root, enum field_status *fixed_parent,
+ LttField *field)
-/* read a fixed size or a block information from the file (fd) */
-int map_block(LttTracefile * tf, unsigned int block_num);
-/* calculate cycles per nsec for current block */
-void getCyclePerNsec(LttTracefile * t);
+static inline size_t get_field_type_size(LttTracefile *tf,
+ LttEventType *event_type,
+ off_t offset_root, off_t offset_parent,
+ LttField *field, void *data)
-/* reinitialize the info of the block which is already in the buffer */
-void updateTracefile(LttTracefile * tf);
-/* go to the next event */
-int skipEvent(LttTracefile * t);
+/* map a fixed size or a block information from the file (fd) */
+int map_block(LttTracefile * tf, unsigned int block_num);
+/* calculate nsec per cycles for current block */
+static double calc_nsecs_per_cycle(LttTracefile * t);
+
+/* go to the next event */
+static int ltt_seek_next_event(LttTracefile *tf);
/* Functions to parse system.xml file (using glib xml parser) */
static void parser_start_element (GMarkupParseContext __UNUSED__ *context,
des->description = g_strdup(text);
}
+static inline LttFacility *ltt_trace_get_facility_by_num(LttTrace *t,
+ guint num)
+{
+ g_assert(num < t->facilities_by_num->len);
+
+ return &g_array_index(t->facilities_by_num, LttFacility, num);
+
+}
+
/*****************************************************************************
*Function name
if(tf->cpu_online)
ltt_tracefile_close(tf);
}
+ g_array_free(group, TRUE);
}
gboolean ltt_tracefile_group_has_cpu_online(gpointer data)
/* Add the per cpu tracefile to the named group */
unsigned int old_len = group->len;
if(num+1 > old_len)
- g_array_set_size(group, num+1);
+ group = g_array_set_size(group, num+1);
tf = &g_array_index (group, LttTracefile, num);
if(ltt_tracefile_open(trace, path, tf)) {
continue; /* error opening the tracefile : bad magic number ? */
}
tf->cpu_online = 1;
+ tf->cpu_num = num;
}
}
return 0;
}
+/* ltt_get_facility_description
+ *
+ * Opens the trace corresponding to the requested facility (identified by fac_id
+ * and checksum).
+ *
+ * The name searched is : %trace root%/eventdefs/facname_checksum.xml
+ *
+ * Returns 0 on success, or 1 on failure.
+ */
+
+static int ltt_get_facility_description(LttFacility *f,
+ LttTrace *t)
+{
+ char desc_file_name[PATH_MAX];
+ char *text;
+ guint textlen;
+ gint err;
+ int i, j;
+
+ text = g_quark_to_string(t->pathname);
+ textlen = strlen(text);
+
+ if(textlen >= PATH_MAX) goto name_error;
+ strcpy(desc_file_name, text);
+
+ text = "/eventdefs/";
+ textlen+=strlen(text);
+ if(textlen >= PATH_MAX) goto name_error;
+ strcat(desc_file_name, text);
+
+ text = g_quark_to_string(f->name);
+ textlen+=strlen(text);
+ if(textlen >= PATH_MAX) goto name_error;
+ strcat(desc_file_name, text);
+
+ text = "_";
+ textlen+=strlen(text);
+ if(textlen >= PATH_MAX) goto name_error;
+ strcat(desc_file_name, text);
+
+ err = snprintf(desc_file_name+textlen, PATH_MAX-textlen-1,
+ "%u", f->checksum);
+ if(err) goto name_error;
+
+ textlen=strlen(desc_file_name);
+
+ text = ".xml";
+ textlen+=strlen(text);
+ if(textlen >= PATH_MAX) goto name_error;
+ strcat(desc_file_name, text);
+
+ err = ltt_facility_open(f, t, desc_file_name);
+ if(err) goto facility_error;
+
+ for(i=0;i<t->facilities_by_num->len;i++){
+ f = &g_array_index(t->facilities_by_num, LttFacility, i);
+ if(f->exists) {
+ for(j=0; j<f->events->len; j++){
+ et = &g_array_index(f->events, LttEventType, j);
+ setFieldsOffset(NULL, et, NULL);
+ }
+ }
+ }
+
+
+ return 0;
+
+facility_error:
+name_error:
+ return 1;
+}
+
+static void ltt_tracefile_ids_destroy(gpointer data)
+{
+ GArray *fac_ids = (GArray *)data;
+ int i;
+ LttFacility *fac;
+
+ for(i=0; i<group->len; i++) {
+ fac = &g_array_index (fac_ids, LttFacility, i);
+ ltt_facility_close(fac);
+ }
+
+ g_array_free(array, TRUE);
+}
+
+
+/* Presumes the tracefile is already seeked at the beginning. It makes sense,
+ * because it must be done just after the opening */
+static int ltt_process_facility_tracefile(LttTracefile *tf)
+{
+ int err;
+ LttFacility *fac;
+ GArray *fac_ids;
+
+ while(1) {
+ err = ltt_tracefile_read_seek(tf);
+ if(err == EPERM) goto seek_error;;
+ else if(err == ERANGE) break; /* End of tracefile */
+
+ err = ltt_tracefile_read_update_event(tf);
+ if(err) goto update_error;
+
+ /* We are on a facility load/or facility unload/ or heartbeat event */
+ /* The rules are :
+ * * facility 0 is hardcoded : this is the core facility. It will be shown
+ * in the facility array though, and is shown as "loaded builtin" in the
+ * trace.
+ * It contains event :
+ * 0 : facility load
+ * 1 : facility unload
+ * 2 : state dump facility load
+ * Facility 1 : (heartbeat)
+ * 0 : heartbeat
+ */
+ if(tf->event.facility_id > 1) { /* Should only contain core and heartbeat
+ facilities */
+ g_warning("Error in processing facility file %s, "
+ "should not contain facility id %u.", g_quark_to_string(tf->name),
+ tf->event.facility_id);
+ err = EPERM;
+ goto fac_id_error;
+ } else if(tf->event.facility_id == 0) {
+
+ // FIXME align
+ switch((enum ltt_core_events)tf->event.event_id) {
+ case LTT_EVENT_FACILITY_LOAD:
+ struct LttFacilityLoad *fac_load_data =
+ (struct LttFacilityLoad *)tf->event.data;
+ char *fac_name =
+ (char*)(tf->event.data + sizeof(struct LttFacilityLoad));
+ fac = &g_array_index (tf->facilities_by_num, LttTracefile,
+ tf->event.);
+ g_assert(fac->exists == 0);
+ fac->name = g_quark_from_string(fac_name);
+ fac->checksum = ltt_get_uint32(LTT_GET_BO(tf),
+ fac_load_data->checksum);
+ fac->id = ltt_get_uint8(LTT_GET_BO(tf), fac_load_data->id);
+ fac->pointer_size = ltt_get_uint32(LTT_GET_BO(tf),
+ fac_load_data->pointer_size);
+ fac->size_t_size = ltt_get_uin32(LTT_GET_BO(tf),
+ fac_load_data->size_t_size);
+ fac->alignment = ltt_get_uint32(LTT_GET_BO(tf),
+ fac_load_data->alignment);
+
+ if(ltt_get_facility_description(fac, tf->trace))
+ goto facility_error;
+
+ fac->trace = tf->trace;
+ fac->exists = 1;
+
+ fac_ids = g_datalist_get_data(tf->facilities_by_name, fac->name);
+ if(fac_ids == NULL) {
+ fac_ids = g_array_sized_new (FALSE, TRUE, sizeof(guint), 1);
+ g_datalist_set_data_full(tf->facilities_by_name, fac->name,
+ fac_ids, ltt_fac_ids_destroy);
+ }
+ g_array_append_val(fac_ids, fac->id);
+
+ break;
+ case LTT_EVENT_FACILITY_UNLOAD:
+ /* We don't care about unload : facilities ID are valid for the whole
+ * trace. They simply won't be used after the unload. */
+ break;
+ case LTT_EVENT_STATE_DUMP_FACILITY_LOAD:
+ struct LttFacilityLoad *fac_load_data =
+ (struct LttFacilityLoad *)tf->event.data;
+ char *fac_name =
+ (char*)(tf->event.data + sizeof(struct LttFacilityLoad));
+ fac = &g_array_index (tf->facilities_by_num, LttTracefile,
+ tf->event.);
+ g_assert(fac->exists == 0);
+ fac->name = g_quark_from_string(fac_name);
+ fac->checksum = ltt_get_uint32(LTT_GET_BO(tf),
+ fac_load_data->checksum);
+ fac->id = ltt_get_uint8(LTT_GET_BO(tf), fac_load_data->id);
+ fac->pointer_size = ltt_get_uint32(LTT_GET_BO(tf),
+ fac_load_data->pointer_size);
+ fac->size_t_size = ltt_get_uin32(LTT_GET_BO(tf),
+ fac_load_data->size_t_size);
+ fac->alignment = ltt_get_uint32(LTT_GET_BO(tf),
+ fac_load_data->alignment);
+ fac->events;
+ fac->named_types;
+ fac->named_types_number;
+ fac->exists = 1;
+
+ fac_ids = g_datalist_get_data(tf->facilities_by_name, fac->name);
+ if(fac_ids == NULL) {
+ fac_ids = g_array_sized_new (FALSE, TRUE, sizeof(guint), 1);
+ g_datalist_set_data_full(tf->facilities_by_name, fac->name,
+ fac_ids, ltt_fac_ids_destroy);
+ }
+ g_array_append_val(fac_ids, fac->id);
+
+ break;
+ default:
+ g_warning("Error in processing facility file %s, "
+ "unknown event id %hhu in core facility.",
+ g_quark_to_string(tf->name),
+ tf->event.event_id);
+ err = EPERM;
+ goto event_id_error;
+ }
+ } else if(tf->event.facility_id == 1) {
+
+ switch((enum ltt_heartbeat_events)tf->event.event_id) {
+ case LTT_EVENT_HEARTBEAT:
+ break;
+ default:
+ g_warning("Error in processing facility file %s, "
+ "unknown event id %hhu in heartbeat facility.",
+ g_quark_to_string(tf->name),
+ tf->event.event_id);
+ err = EPERM;
+ goto event_id_error;
+ }
+ }
+ }
+ return 0;
+
+ /* Error handling */
+facility_error:
+event_id_error:
+fac_id_error:
+update_error:
+seek_error:
+ return err;
+}
+
+
LttTrace *ltt_trace_open(const gchar *pathname)
{
gchar abs_path[PATH_MAX];
LttTrace * t;
- LttTracefile tf;
+ LttTracefile *tf;
GArray *group;
int i;
if(open_tracefiles(t, abs_path, t->tracefiles))
goto open_error;
- /* Load trace XML event descriptions */
- //TODO
+ /* Prepare the facilities containers : array and mapping */
+ /* Array is zeroed : the "exists" field is set to false by default */
+ t->facilities_by_num = g_array_sized_new (FALSE,
+ TRUE, sizeof(LttFacility),
+ NUM_FACILITIES);
+ t->facilities_by_num = g_array_set_size(t->facilities_by_num, NUM_FACILITIES);
+
+ g_datalist_init(t->tracefiles_by_name);
/* Parse each trace control/facilitiesN files : get runtime fac. info */
group = g_datalist_get_data(t->tracefiles, LTT_TRACEFILE_NAME_FACILITIES);
for(i=0; i<group->len; i++) {
tf = &g_array_index (group, LttTracefile, i);
- //TODO
- process_facility_tracefile(tf);
+ if(ltt_process_facility_tracefile(tf))
+ goto facilities_error;
}
/* Error handling */
facilities_error:
+ g_datalist_free(t->tracefiles_by_name);
+ g_array_free(t->facilities_by_num, TRUE);
open_error:
g_datalist_clear(t->tracefiles);
g_free(t);
alloc_error:
return NULL;
-
-
- LttSystemDescription * sys_description;
- gchar eventdefs[DIR_NAME_SIZE];
- gchar info[DIR_NAME_SIZE];
- gchar cpu[DIR_NAME_SIZE];
- gchar tmp[DIR_NAME_SIZE];
- gboolean has_slash = FALSE;
-
- //establish the pathname to different directories
- if(abs_path[strlen(abs_path)-1] == '/')has_slash = TRUE;
- strcpy(eventdefs,abs_path);
- if(!has_slash)strcat(eventdefs,"/");
- strcat(eventdefs,"eventdefs/");
-
- strcpy(info,abs_path);
- if(!has_slash)strcat(info,"/");
- strcat(info,"info/");
-
- strcpy(control,abs_path);
- if(!has_slash)strcat(control,"/");
- strcat(control,"control/");
-
- strcpy(cpu,abs_path);
- if(!has_slash)strcat(cpu,"/");
- strcat(cpu,"cpu/");
-
- //new trace
- sys_description = g_new(LttSystemDescription, 1);
- t = g_new(LttTrace, 1);
- t->pathname = g_strdup(abs_path);
- t->facility_number = 0;
- t->control_tracefile_number = 0;
- t->per_cpu_tracefile_number = 0;
- t->system_description = sys_description;
- t->control_tracefiles = g_ptr_array_new();
- t->per_cpu_tracefiles = g_ptr_array_new();
- t->facilities = g_ptr_array_new();
- //getDataEndianType(&(t->my_arch_size), &(t->my_arch_endian));
-
- //get system description
- strcpy(tmp,info);
- strcat(tmp,"system.xml");
- if(getSystemInfo(sys_description, tmp)) {
- g_ptr_array_free(t->facilities, TRUE);
- g_ptr_array_free(t->per_cpu_tracefiles, TRUE);
- g_ptr_array_free(t->control_tracefiles, TRUE);
- g_free(sys_description);
- g_free(t->pathname);
- g_free(t);
- return NULL;
- }
-
- /* Set the reverse byte order between trace and reader */
- if(sys_description->endian == LTT_LITTLE_ENDIAN
- && G_BYTE_ORDER != G_LITTLE_ENDIAN) {
- t->reverse_byte_order = 1;
- } else if(sys_description->endian == LTT_BIG_ENDIAN
- && G_BYTE_ORDER != G_BIG_ENDIAN) {
- t->reverse_byte_order = 1;
- } else t->reverse_byte_order = 0;
-
- //get facilities info
- if(getFacilityInfo(t,eventdefs)) {
- g_ptr_array_free(t->facilities, TRUE);
- g_ptr_array_free(t->per_cpu_tracefiles, TRUE);
- g_ptr_array_free(t->control_tracefiles, TRUE);
- g_free(sys_description);
- g_free(t->pathname);
- g_free(t);
- return NULL;
- }
-
- //get control tracefile info
- getControlFileInfo(t,control);
- /*
- if(getControlFileInfo(t,control)) {
- g_ptr_array_free(t->facilities, TRUE);
- g_ptr_array_free(t->per_cpu_tracefiles, TRUE);
- g_ptr_array_free(t->control_tracefiles, TRUE);
- g_free(sys_description);
- g_free(t->pathname);
- g_free(t);
- return NULL;
- }*/ // With fatal error
-
- //get cpu tracefile info
- if(getCpuFileInfo(t,cpu)) {
- g_ptr_array_free(t->facilities, TRUE);
- g_ptr_array_free(t->per_cpu_tracefiles, TRUE);
- g_ptr_array_free(t->control_tracefiles, TRUE);
- g_free(sys_description);
- g_free(t->pathname);
- g_free(t);
- return NULL;
- }
-
- return t;
}
-char * ltt_trace_name(LttTrace *t)
+GQuark ltt_trace_name(LttTrace *t)
{
return t->pathname;
}
void ltt_trace_close(LttTrace *t)
{
- unsigned int i;
- LttTracefile * tf;
- LttFacility * f;
-
- g_free(t->pathname);
-
- //free system_description
- g_free(t->system_description->description);
- g_free(t->system_description->node_name);
- g_free(t->system_description->domain_name);
- g_free(t->system_description->kernel_name);
- g_free(t->system_description->kernel_release);
- g_free(t->system_description->kernel_version);
- g_free(t->system_description->machine);
- g_free(t->system_description->processor);
- g_free(t->system_description->hardware_platform);
- g_free(t->system_description->operating_system);
- g_free(t->system_description);
-
- //free control_tracefiles
- for(i=0;i<t->control_tracefile_number;i++){
- tf = (LttTracefile*)g_ptr_array_index(t->control_tracefiles,i);
- ltt_tracefile_close(tf);
- }
- g_ptr_array_free(t->control_tracefiles, TRUE);
-
- //free per_cpu_tracefiles
- for(i=0;i<t->per_cpu_tracefile_number;i++){
- tf = (LttTracefile*)g_ptr_array_index(t->per_cpu_tracefiles,i);
- ltt_tracefile_close(tf);
- }
- g_ptr_array_free(t->per_cpu_tracefiles, TRUE);
-
- //free facilities
- for(i=0;i<t->facility_number;i++){
- f = (LttFacility*)g_ptr_array_index(t->facilities,i);
- ltt_facility_close(f);
- }
- g_ptr_array_free(t->facilities, TRUE);
-
+ g_datalist_free(t->tracefiles_by_name);
+ g_array_free(t->facilities_by_num, TRUE);
+ g_datalist_clear(t->tracefiles);
g_free(t);
-
- g_blow_chunks();
}
*Get the system description of the trace
****************************************************************************/
-LttSystemDescription *ltt_trace_system_description(LttTrace *t)
-{
- return t->system_description;
-}
-
-/*****************************************************************************
- * The following functions discover the facilities of the trace
- ****************************************************************************/
-
-unsigned ltt_trace_facility_number(LttTrace *t)
-{
- return (unsigned)(t->facility_number);
-}
-
-LttFacility *ltt_trace_facility_get(LttTrace *t, unsigned i)
+LttFacility *ltt_trace_facility_by_id(LttTrace *t, guint8 id)
{
- return (LttFacility*)g_ptr_array_index(t->facilities, i);
+ g_assert(index < t->facilities_by_num->len);
+ return &g_array_index(t->facilities_by_num, LttFacility, id);
}
-/*****************************************************************************
- *Function name
- * ltt_trace_facility_find : find facilities in the trace
- *Input params
- * t : the trace
- * name : facility name
- *Output params
- * position : position of the facility in the trace
- *Return value
- * : the number of facilities
- ****************************************************************************/
-
-unsigned ltt_trace_facility_find(LttTrace *t, char *name, unsigned *position)
+/* ltt_trace_facility_get_by_name
+ *
+ * Returns the GArray of facility indexes. All the fac_ids that matches the
+ * requested facility name.
+ *
+ * If name is not found, returns NULL.
+ */
+GArray *ltt_trace_facility_get_by_name(LttTrace *t, GQuark name)
{
- unsigned int i, count=0;
- LttFacility * f;
- for(i=0;i<t->facility_number;i++){
- f = (LttFacility*)g_ptr_array_index(t->facilities, i);
- if(strcmp(f->name,name)==0){
- count++;
- if(count==1) *position = i;
- }else{
- if(count) break;
- }
- }
- return count;
+ return g_datalist_id_get_data(t->facilities_by_name, name);
}
/*****************************************************************************
* Functions to discover all the event types in the trace
****************************************************************************/
+#if 0
unsigned ltt_trace_eventtype_number(LttTrace *t)
{
unsigned int i;
}
return count;
}
+#endif //0
-/* FIXME : performances could be improved with a better design for this
- * function : sequential search through a container has never been the
- * best on the critical path. */
-LttFacility * ltt_trace_facility_by_id(LttTrace * trace, unsigned id)
-{
- LttFacility * facility = NULL;
- unsigned int i;
- unsigned int num = trace->facility_number;
- GPtrArray *facilities = trace->facilities;
-
- for(i=0;unlikely(i<num);){
- LttFacility *iter_facility =
- (LttFacility*) g_ptr_array_index(facilities,i);
- unsigned base_id = iter_facility->base_id;
-
- if(likely(id >= base_id &&
- id < base_id + iter_facility->event_number)) {
- facility = iter_facility;
- break;
- } else {
- i++;
- }
- }
-
- return facility;
-}
-
+#if 0
+//use an iteration on all the trace facilities, and inside iteration on all the
+//event types in each facilities instead.
LttEventType *ltt_trace_eventtype_get(LttTrace *t, unsigned evId)
{
LttEventType *event_type;
return event_type;
}
+#endif //0
+#if 0
/*****************************************************************************
- *There is one "per cpu" tracefile for each CPU, numbered from 0 to
- *the maximum number of CPU in the system. When the number of CPU installed
- *is less than the maximum, some positions are unused. There are also a
- *number of "control" tracefiles (facilities, interrupts...).
- ****************************************************************************/
-unsigned ltt_trace_control_tracefile_number(LttTrace *t)
-{
- return t->control_tracefile_number;
-}
-
-unsigned ltt_trace_per_cpu_tracefile_number(LttTrace *t)
-{
- return t->per_cpu_tracefile_number;
-}
-
-/*****************************************************************************
- *It is possible to search for the tracefiles by name or by CPU position.
- *The index within the tracefiles of the same type is returned if found
- *and a negative value otherwise.
- ****************************************************************************/
-
-int ltt_trace_control_tracefile_find(LttTrace *t, const gchar *name)
-{
- LttTracefile * tracefile;
- unsigned int i;
- for(i=0;i<t->control_tracefile_number;i++){
- tracefile = (LttTracefile*)g_ptr_array_index(t->control_tracefiles, i);
- if(strcmp(tracefile->name, name)==0)break;
- }
- if(i == t->control_tracefile_number) return -1;
- return i;
-}
-
-/* not really useful. We just have to know that cpu tracefiles
- * comes before control tracefiles.
- */
-int ltt_trace_per_cpu_tracefile_find(LttTrace *t, const gchar *name)
-{
- LttTracefile * tracefile;
- unsigned int i;
- for(i=0;i<t->per_cpu_tracefile_number;i++){
- tracefile = (LttTracefile*)g_ptr_array_index(t->per_cpu_tracefiles, i);
- if(strcmp(tracefile->name, name)==0)break;
- }
- if(i == t->per_cpu_tracefile_number) return -1;
- return i;
-}
-
-/*****************************************************************************
- *Get a specific tracefile
+ * ltt_trace_find_tracefile
+ *
+ * Find a tracefile by name and index in the group.
+ *
+ * Returns a pointer to the tracefiles, else NULL.
****************************************************************************/
-LttTracefile *ltt_trace_control_tracefile_get(LttTrace *t, unsigned i)
-{
- return (LttTracefile*)g_ptr_array_index(t->control_tracefiles, i);
-}
-
-LttTracefile *ltt_trace_per_cpu_tracefile_get(LttTrace *t, unsigned i)
+LttTracefile *ltt_trace_find_tracefile(LttTrace *t, const gchar *name)
{
- return (LttTracefile*)g_ptr_array_index(t->per_cpu_tracefiles, i);
}
+#endif //0
/*****************************************************************************
* Get the start time and end time of the trace
*Get the name of a tracefile
****************************************************************************/
-char *ltt_tracefile_name(LttTracefile *tf)
+GQuark ltt_tracefile_name(LttTracefile *tf)
{
return tf->name;
}
* Get the number of blocks in the tracefile
****************************************************************************/
-unsigned ltt_tracefile_block_number(LttTracefile *tf)
+guint ltt_tracefile_block_number(LttTracefile *tf)
{
return tf->block_number;
}
* You MUST NOT do a ltt_tracefile_read right after a ltt_tracefile_seek_time :
* you will jump over an event if you do.
*
+ * Return value : 0 : no error, the tf->event can be used
+ * otherwise : this is an error.
+ *
* */
-void ltt_tracefile_seek_time(LttTracefile *tf, LttTime time)
+int ltt_tracefile_seek_time(LttTracefile *tf, LttTime time)
{
+ int ret = 0;
int err;
unsigned int block_num, high, low;
/* If the time is lower or equal the beginning of the trace,
* go to the first event. */
if(ltt_time_compare(time, tf->buffer.start.timestamp) <= 0) {
- ltt_tracefile_read(tf)
+ ret = ltt_tracefile_read(tf)
goto found; /* There is either no event in the trace or the event points
to the first event in the trace */
}
/* If the time is after the end of the trace, get the last event. */
if(ltt_time_compare(time, tf->buffer.end.timestamp) >= 0) {
- /* While the ltt_tracefile_read_event doesn't return NULL, continue reading
+ /* While the ltt_tracefile_read doesn't return ERANGE or EPERM,
+ * continue reading.
*/
- while(ltt_tracefile_read(tf));
- goto found;
+ while(1) {
+ ret = ltt_tracefile_read(tf);
+ if(ret == ERANGE) goto found; /* ERANGE or EPERM */
+ else if(ret) goto fail;
+ }
}
/* Binary search the block */
g_error("Can not map block");
goto fail;
}
- if(ltt_time_compare(time, tf->buffer.start.timestamp) < 0) {
+ if(high == low) {
+ /* We cannot divide anymore : this is what would happen if the time
+ * requested was exactly between two consecutive buffers'end and start
+ * timestamps. This is also what would happend if we didn't deal with out
+ * of span cases prior in this function. */
+ /* The event is right in the buffer!
+ * (or in the next buffer first event) */
+ while(1) {
+ ret = ltt_tracefile_read(tf);
+ if(ret == ERANGE) goto found; /* ERANGE or EPERM */
+ else if(ret) goto fail;
+
+ if(ltt_time_compare(time, tf->event.event_time) >= 0)
+ break;
+ }
+
+ } if(ltt_time_compare(time, tf->buffer.start.timestamp) < 0) {
/* go to lower part */
high = block_num;
} else if(ltt_time_compare(time, tf->buffer.end.timestamp) > 0) {
(or in the next buffer first event) */
while(1) {
ltt_tracefile_read(tf);
+ if(ret == ERANGE) goto found; /* ERANGE or EPERM */
+ else if(ret) goto fail;
+
if(ltt_time_compare(time, tf->event.event_time) >= 0)
break;
}
}
found:
-
- return;
+ return 0;
/* Error handling */
fail:
g_error("ltt_tracefile_seek_time failed on tracefile %s",
g_quark_to_string(tf->name));
+ return EPERM;
}
tf->event.offset = ep->offset;
- if(!ltt_tracefile_read(tf)) goto fail;
-
+ err = ltt_tracefile_read_update_event(tf);
+ if(err) goto fail;
+ err = ltt_tracefile_read_op(tf);
+ if(err) goto fail;
+
return;
fail:
g_quark_to_string(tf->name));
}
-
-
-/*****************************************************************************
- * Seek to the first event with position equal or larger to ep
- *
- * Modified by Mathieu Desnoyers to used faster offset position instead of
- * re-reading the whole buffer.
- ****************************************************************************/
-
-void ltt_tracefile_seek_position(LttTracefile *t, const LttEventPosition *ep)
-{
- //if we are at the right place, just return
- if(likely(t->which_block == ep->block_num && t->which_event == ep->event_num))
- return;
-
- if(likely(t->which_block == ep->block_num)) updateTracefile(t);
- else readBlock(t,ep->block_num);
- //event offset is available
- if(likely(ep->old_position)){
- int err;
-
- t->which_event = ep->event_num;
- t->cur_event_pos = t->buffer + ep->event_offset;
- t->prev_event_time = ep->event_time;
- t->current_event_time = ep->event_time;
- t->cur_heart_beat_number = ep->heart_beat_number;
- t->cur_cycle_count = ep->event_cycle_count;
-
- /* This is a workaround for fast position seek */
- t->last_event_pos = ep->last_event_pos;
- t->prev_block_end_time = ep->prev_block_end_time;
- t->prev_event_time = ep->prev_event_time;
- t->pre_cycle_count = ep->pre_cycle_count;
- t->count = ep->count;
- t->overflow_nsec = ep->overflow_nsec;
- t->last_heartbeat = ep->last_heartbeat;
- /* end of workaround */
-
- //update the fields of the current event and go to the next event
- err = skipEvent(t);
- if(unlikely(err == ERANGE)) g_error("event id is out of range\n");
-
- return;
- }
-
- //only block number and event index are available
- //MD: warning : this is slow!
- g_warning("using slow O(n) tracefile seek position");
-
- LttEvent event;
- while(likely(t->which_event < ep->event_num)) ltt_tracefile_read(t, &event);
-
- return;
-}
-
/* Calculate the real event time based on the buffer boundaries */
LttTime ltt_interpolate_time(LttTracefile *tf, LttEvent *event)
{
return time;
}
-
/*****************************************************************************
*Function name
* ltt_tracefile_read : Read the next event in the tracefile
*Input params
* t : tracefile
*Return value
- * LttEvent * : an event to be processed
- * Note : it points to the current tf->event. It will be overwritten
- * by the next call to ltt_tracefile_read or any map_block.
- *
- * Returns NULL on end of trace (or error).
*
+ * Returns 0 if an event can be used in tf->event.
+ * Returns ERANGE on end of trace. The event in tf->event still can be used.
+ * Returns EPERM on error.
*
* This function does make the tracefile event structure point to the event
- * currently pointed to by the
+ * currently pointed to by the tf->event.
+ *
+ * Note : you must call a ltt_tracefile_seek to the beginning of the trace to
+ * reinitialize it after an error if you want results to be coherent.
+ * It would be the case if a end of trace last buffer has no event : the end
+ * of trace wouldn't be returned, but an error.
+ * We make the assumption there is at least one event per buffer.
****************************************************************************/
-LttEvent *ltt_tracefile_read(LttTracefile *tf)
+int ltt_tracefile_read(LttTracefile *tf)
{
int err;
- LttFacility *f;
- void * pos;
-
- /* Skip the current event to go to the next, or point to the
- * t->buffer.head + t->buffer.lost_size if we were on the last
- * event of a buffer.
- */
- err = ltt_seek_next_event(tf);
- if(unlikely(err == ERANGE)) {
- g_error("event id is out of range\n");
- return NULL;
- }
- pos = tf->event.offset;
+ err = ltt_tracefile_read_seek(tf);
+ if(err) return err;
+ err = ltt_tracefile_read_update_event(tf);
+ if(err) return err;
+ err = ltt_tracefile_read_op(tf);
+ if(err) return err;
- /* Are we at the end of the buffer ? */
- if(unlikely(pos == tf->buffer.head + tf->buffer.lost_size)) {
- if(unlikely(tf->buffer.index == tf->num_blocks-1)){ /* end of trace ? */
- return NULL;
- } else {
- /* get next block */
- err = map_block(tf, tf->buffer.index + 1);
- if(unlikely(err)) {
- g_error("Can not map block");
- return NULL;
- }
- pos = tf->event.offset;
+ return 0;
+}
+
+int ltt_tracefile_read_seek(LttTracefile *tf)
+{
+ int err;
+
+ /* Get next buffer until we finally have an event, or end of trace */
+ while(1) {
+ err = ltt_seek_next_event(tf);
+ if(unlikely(err == ENOPROTOOPT)) {
+ return EPERM;
}
+
+ /* Are we at the end of the buffer ? */
+ if(err == ERANGE) {
+ if(unlikely(tf->buffer.index == tf->num_blocks-1)){ /* end of trace ? */
+ return ERANGE;
+ } else {
+ /* get next block */
+ err = map_block(tf, tf->buffer.index + 1);
+ if(unlikely(err)) {
+ g_error("Can not map block");
+ return EPERM;
+ }
+ }
+ } else break; /* We found an event ! */
}
+
+ return 0;
+}
+
+
+/* do specific operation on events */
+int ltt_tracefile_read_op(LttTracefile *tf)
+{
+ int err;
+ LttFacility *f;
+ void * pos;
+ LttEvent *event;
+
+ event = &tf->event;
+
+ /* do event specific operation */
+
+ /* do something if its an heartbeat event : increment the heartbeat count */
+ if(event->facility_id == LTT_FACILITY_CORE)
+ if(event->event_id == LTT_EVENT_HEARTBEAT)
+ t->cur_heart_beat_number++;
+
+ return 0;
+}
+
+
+/* same as ltt_tracefile_read, but does not seek to the next event nor call
+ * event specific operation. */
+int ltt_tracefile_read_update_event(LttTracefile *tf)
+{
+ int err;
+ LttFacility *f;
+ void * pos;
+ LttEvent *event;
+
+ event = &tf->event;
+ pos = event->offset;
/* Read event header */
if(tf->trace->has_tsc) {
event->time.timestamp = ltt_get_uint32(LTT_GET_BO(t),
- tf->cur_event_pos);
+ pos);
/* 32 bits -> 64 bits tsc */
+ /* note : still works for seek and non seek cases. */
if(event->time.timestamp < (0xFFFFFFFFULL&tf->buffer.tsc)) {
tf->buffer.tsc = ((tf->buffer.tsc&0xFFFFFFFF00000000ULL)
+ 0x100000000ULL)
| (guint64)event->time.timestamp;
-
- event->event_time = ltt_interpolate_time(tf, event);
+ event->tsc = tf->buffer.tsc;
} else {
/* no overflow */
tf->buffer.tsc = (tf->buffer.tsc&0xFFFFFFFF00000000ULL)
| (guint64)event->time.timestamp;
+ event->tsc = tf->buffer.tsc;
}
+
+ event->event_time = ltt_interpolate_time(tf, event);
+
pos += sizeof(uint32);
} else {
event->time.delta = ltt_get_uint32(LTT_GET_BO(tf),
- tf->cur_event_pos);
+ pos);
tf->buffer.tsc = 0;
+ event->tsc = tf->buffer.tsc;
event->event_time = ltt_time_add(tf->buffer.begin.timestamp,
event->time_delta);
event->data = pos;
- /* do event specific operation */
-
- /* do something if its an heartbeat event : increment the heartbeat count */
- if(event->facility_id != 0) { /* except core */
- f = (LttFacility*)g_ptr_array_index(tf->trace->facilities,
- event->facility_id);
- g_assert(f != NULL);
-
- if(unlikely(ltt_facility_name(f)
- != LTT_FACILITY_NAME_HEARTBEAT)) {
- LttEventType *et = ltt_facility_eventtype_get_by_name(f,
- LTT_EVENT_NAME_HEARTBEAT);
- if(et->id == event->event_id)
- t->cur_heart_beat_number++;
-
- }
- }
-
- return event;
+ return 0;
}
-/****************************************************************************
- *Function name
- * readFile : wrap function to read from a file
- *Input Params
- * fd : file descriptor
- * buf : buf to contain the content
- * size : number of bytes to be read
- * mesg : message to be printed if some thing goes wrong
- *return value
- * 0 : success
- * EIO : can not read from the file
- ****************************************************************************/
-#if 0
-int readFile(int fd, void * buf, size_t size, char * mesg)
-{
- ssize_t nbBytes = read(fd, buf, size);
-
- if((size_t)nbBytes != size) {
- if(nbBytes < 0) {
- perror("Error in readFile : ");
- } else {
- g_warning("%s",mesg);
- }
- return EIO;
- }
- return 0;
-}
-#endif //0
/****************************************************************************
*Function name
header->lost_size);
tf->buffer.tsc = tf->buffer.begin.cycle_count;
+ tf->event.tsc = tf->buffer.tsc;
/* FIXME
* eventually support variable buffer size : will need a partial pre-read of
}
-/*****************************************************************************
- *Function name
- * updateTracefile : reinitialize the info of the block which is already
- * in the buffer
- *Input params
- * tf : tracefile
- ****************************************************************************/
-
-void updateTracefile(LttTracefile * tf)
+ssize_t ltt_get_event_size(LttTracefile *tf)
{
- tf->which_event = 1;
- tf->cur_event_pos = tf->buffer;
- tf->current_event_time = getEventTime(tf);
- tf->cur_heart_beat_number = 0;
+ ssize_t size = 0;
+
+ /* Specific handling of core events : necessary to read the facility control
+ * tracefile. */
+ if(unlikely(tf->event.facility_id == LTT_FACILITY_CORE)) {
+ switch((enum ltt_core_events)tf->event.event_id) {
+ case LTT_EVENT_FACILITY_LOAD:
+ size = sizeof(struct LttFacilityLoad);
+ break;
+ case LTT_EVENT_FACILITY_UNLOAD:
+ size = sizeof(struct LttFacilityUnload);
+ break;
+ case LTT_EVENT_STATE_DUMP_FACILITY_LOAD:
+ size = sizeof(struct LttStateDumpFacilityLoad);
+ break;
+ case LTT_EVENT_HEARTBEAT:
+ size = sizeof(TimeHeartbeat);
+ break;
+ default:
+ g_warning("Error in getting event size : tracefile %s, "
+ "unknown event id %hhu in core facility.",
+ g_quark_to_string(tf->name),
+ tf->event.event_id);
+ goto event_id_error;
- tf->prev_event_time.tv_sec = 0;
- tf->prev_event_time.tv_nsec = 0;
- tf->count = 0;
+ }
- tf->overflow_nsec =
- (-((double)ltt_get_uint64(tf->trace->reverse_byte_order,
- &tf->a_block_start->cycle_count))
- * tf->nsec_per_cycle);
+ } else {
+ LttFacility *f = ltt_trace_get_facility_by_num(tf->trace,
+ tf->event.facility_id);
+ LttEventType *event_type =
+ ltt_facility_eventtype_get(f, tf->event.event_id);
+ size = get_fields_offsets(tf, event_type, tf->event.data);
+ }
+ return size;
+
+event_id_error:
+ return -1;
}
+
/* Take the tf current event offset and use the event facility id and event id
* to figure out where is the next event offset.
*
*
* Returns 0 on success
* ERANGE if we are at the end of the buffer.
+ * ENOPROTOOPT if an error occured when getting the current event size.
*/
static int ltt_seek_next_event(LttTracefile *tf)
{
+ int ret = 0;
void *pos;
+ ssize_t event_size;
/* seek over the buffer header if we are at the buffer start */
if(tf->event.offset == tf->buffer.head) {
goto found;
}
- /* if we are at the end of a buffer, generate an error, not supposed to
- * happen. */
- if(tf->event.offset == tf->buffer.head + tf->buffer.lost_size)
- goto error;
+
+ if(tf->event.offset == tf->buffer.head + tf->buffer.lost_size) {
+ ret = ERANGE;
+ goto found;
+ }
pos = tf->event.data;
- pos += ltt_facility_get_event_size(tf->event.facility_id, tf->event.event_id);
+ event_size = ltt_get_event_size(tf);
+ if(event_size < 0) goto error;
+ pos += (size_t)event_size;
+
tf->event.offset = pos;
found:
- return 0;
+ return ret;
error:
g_error("Error in ltt_seek_next_event for tracefile %s",
g_quark_to_string(tf->name));
- return ERANGE;
+ return ENOPROTOOPT;
}
return lBufTotalNSec / (double)lBufTotalCycle;
}
+#if 0
+void setFieldsOffset(LttTracefile *tf, LttEventType *evT,void *evD)
+{
+ LttField * rootFld = evT->root_field;
+ // rootFld->base_address = evD;
+
+ if(likely(rootFld))
+ rootFld->field_size = getFieldtypeSize(tf, evT->facility,
+ evT, 0,0,rootFld, evD);
+}
+#endif //0
/*****************************************************************************
*Function name
- * setFieldsOffset : set offset of the fields
+ * set_fields_offsets : set the precomputable offset of the fields
*Input params
* tracefile : opened trace file
- * evT : the event type
- * evD : event data, it may be NULL
+ * event_type : the event type
****************************************************************************/
-void setFieldsOffset(LttTracefile *tf,LttEventType *evT,void *evD,LttTrace* t)
+void set_fields_offsets(LttTracefile *tf, LttEventType *event_type)
{
- LttField * rootFld = evT->root_field;
- // rootFld->base_address = evD;
+ LttField *field = event_type->root_field;
+
+ if(likely(field))
+ preset_field_type_size(tf, event_type->facility, event_type, 0, 0,
+ FIELD_FIXED, FIELD_FIXED,
+ field);
+
+}
+
+
+/*****************************************************************************
+ *Function name
+ * preset_field_type_size : set the fixed sizes of the field type
+ *Input params
+ * tf : tracefile
+ * event_type : event type
+ * offset_root : offset from the root
+ * offset_parent : offset from the parent
+ * fixed_root : Do we know a fixed offset to the root ?
+ * fixed_parent : Do we know a fixed offset to the parent ?
+ * field : field
+ ****************************************************************************/
+void preset_field_type_size(LttTracefile *tf, LttEventType *event_type,
+ off_t offset_root, off_t offset_parent,
+ enum field_status *fixed_root, enum field_status *fixed_parent,
+ LttField *field)
+{
+ guint i;
+ LttType *type;
+
+ g_assert(field->fixed_root == FIELD_UNKNOWN);
+ g_assert(field->fixed_parent == FIELD_UNKNOWN);
+ g_assert(field->fixed_size == FIELD_UNKNOWN);
+
+ type = field->field_type;
+
+ field->fixed_root = *fixed_root;
+ if(field->fixed_root == FIELD_FIXED)
+ field->offset_root = offset_root;
+ else
+ field->offset_root = 0;
+
+ field->fixed_parent = *fixed_parent;
+ if(field->fixed_parent == FIELD_FIXED)
+ field->offset_parent = offset_parent;
+ else
+ field->offset_parent = 0;
+
+
+ switch(type->type_class) {
+ case LTT_INT:
+ case LTT_UINT:
+ case LTT_FLOAT:
+ case LTT_ENUM:
+ field->field_size = (off_t) ltt_type_size(LTT_GET_BO(tf),
+ event_type->facility, type);
+ field->fixed_size = FIELD_FIXED;
+ break;
+ case LTT_POINTER:
+ field->field_size = (off_t)event_type->facility->pointer_size;
+ field->fixed_size = FIELD_FIXED;
+ break;
+ case LTT_LONG:
+ case LTT_ULONG:
+ field->field_size = (off_t)event_type->facility->pointer_size;
+ field->fixed_size = FIELD_FIXED;
+ break;
+ case LTT_SIZE_T:
+ case LTT_SSIZE_T:
+ case LTT_OFF_T:
+ field->field_size = (off_t)event_type->facility->size_t_size;
+ field->fixed_size = FIELD_FIXED;
+ break;
+ case LTT_SEQUENCE:
+ preset_field_type_size(tf, event_type->facility, event_type,
+ 0, 0,
+ FIELD_VARIABLE, FIELD_VARIABLE,
+ field->child[0]);
+ field->fixed_size = FIELD_VARIABLE;
+ field->field_size = 0;
+ break;
+ case LTT_STRING:
+ field->fixed_size = FIELD_VARIABLE;
+ field->field_size = 0;
+ break;
+ case LTT_ARRAY:
+ preset_field_type_size(tf, event_type->facility, event_type,
+ 0, 0,
+ FIELD_VARIABLE, FIELD_VARIABLE,
+ field->child[0]);
+ field->fixed_size = field->child[0]->fixed_size;
+ if(field->fixed_size == FIELD_FIXED)
+ field->field_size = type->element_number * field->child[0]->field_size;
+ else
+ field->field_size = 0;
+ break;
+ case LTT_STRUCT:
+ size_t current_root_offset = field->offset_root;
+ size_t current_offset = 0;
+ enum field_status current_child_status = FIELD_FIXED;
+ for(i=0;i<type->element_number;i++) {
+ preset_field_type_size(tf, event_type->facility, event_type,
+ current_root_offset, current_offset,
+ fixed_root, ¤t_child_status,
+ field->child[i]);
+ if(current_child_status == FIELD_FIXED) {
+ current_root_offset += field->child[i]->field_size;
+ current_offset += field->child[i]->field_size;
+ } else {
+ current_root_offset = 0;
+ current_offset = 0;
+ }
+ }
+ if(current_child_status != FIELD_FIXED) {
+ *fixed_parent = current_child_status;
+ field->field_size = 0;
+ field->fixed_size = current_child_status;
+ } else {
+ field->field_size = current_offset;
+ field->fixed_size = FIELD_FIXED;
+ }
+ break;
+ case LTT_UNION:
+ size_t current_root_offset = field->offset_root;
+ size_t current_offset = 0;
+ size_t max_size = 0;
+ enum field_status final_child_status = FIELD_FIXED;
+ for(i=0;i<type->element_number;i++) {
+ enum field_status current_root_child_status = FIELD_FIXED;
+ enum field_status current_child_status = FIELD_FIXED;
+ preset_field_type_size(tf, event_type->facility, event_type,
+ current_root_offset, current_offset,
+ ¤t_root_child_status, ¤t_child_status,
+ field->child[i]);
+ if(current_child_status != FIELD_FIXED)
+ final_child_status = current_child_status;
+ else
+ max_size = max(max_size, field->child[i]->field_size);
+ }
+ if(final_child_status != FIELD_FIXED) {
+ *fixed_root = final_child_status;
+ *fixed_parent = final_child_status;
+ field->field_size = 0;
+ field->fixed_size = current_child_status;
+ } else {
+ field->field_size = max_size;
+ field->fixed_size = FIELD_FIXED;
+ }
+ break;
+ }
- if(likely(rootFld))
- rootFld->field_size = getFieldtypeSize(tf, evT, 0,0,rootFld, evD,t);
}
+
+/*****************************************************************************
+ *Function name
+ * get_field_type_size : set the fixed and dynamic sizes of the field type
+ * from the data read.
+ *Input params
+ * tf : tracefile
+ * event_type : event type
+ * offset_root : offset from the root
+ * offset_parent : offset from the parent
+ * field : field
+ * data : a pointer to the event data.
+ *Returns the field type size.
+ ****************************************************************************/
+size_t get_field_type_size(LttTracefile *tf, LttEventType *event_type,
+ off_t offset_root, off_t offset_parent,
+ LttField *field, void *data)
+{
+ size_t size = 0;
+ guint i;
+ LttType *type;
+
+ g_assert(field->fixed_root != FIELD_UNKNOWN);
+ g_assert(field->fixed_parent != FIELD_UNKNOWN);
+ g_assert(field->fixed_size != FIELD_UNKNOWN);
+
+ field->offset_root = offset_root;
+ field->offset_parent = offset_parent;
+
+ type = field->field_type;
+
+ switch(type->type_class) {
+ case LTT_INT:
+ case LTT_UINT:
+ case LTT_FLOAT:
+ case LTT_ENUM:
+ case LTT_POINTER:
+ case LTT_LONG:
+ case LTT_ULONG:
+ case LTT_SIZE_T:
+ case LTT_SSIZE_T:
+ case LTT_OFF_T:
+ g_assert(field->fixed_size == FIELD_FIXED);
+ size = field->field_size;
+ break;
+ case LTT_SEQUENCE:
+ gint seqnum = ltt_get_uint(LTT_GET_BO(tf),
+ field->sequ_number_size,
+ data + offset_root);
+
+ if(field->child[0]->fixed_size == FIELD_FIXED) {
+ size = field->sequ_number_size +
+ (seqnum * get_field_type_size(tf, event_type->facility, event_type,
+ offset_root, offset_parent,
+ field->child[0], data));
+ } else {
+ size += field->sequ_number_size;
+ for(i=0;i<seqnum;i++) {
+ size_t child_size;
+ child_size = get_field_type_size(tf, event_type->facility,
+ event_type,
+ offset_root, offset_parent,
+ field->child[0], data);
+ offset_root += child_size;
+ offset_parent += child_size;
+ size += child_size;
+ }
+ }
+ field->field_size = size;
+ break;
+ case LTT_STRING:
+ size = strlen((char*)(data+offset_root)) + 1;// length + \0
+ field->field_size = size;
+ break;
+ case LTT_ARRAY:
+ if(field->fixed_size == FIELD_FIXED)
+ size = field->field_size;
+ else {
+ for(i=0;i<seqnum;i++) {
+ size_t child_size;
+ child_size = get_field_type_size(tf, event_type->facility,
+ event_type,
+ offset_root, offset_parent,
+ field->child[0], data);
+ offset_root += child_size;
+ offset_parent += child_size;
+ size += child_size;
+ }
+ field->field_size = size;
+ }
+ break;
+ case LTT_STRUCT:
+ if(field->fixed_size == FIELD_FIXED)
+ size = field->field_size;
+ else {
+ size_t current_root_offset = offset_root;
+ size_t current_offset = 0;
+ size_t child_size = 0;
+ for(i=0;i<type->element_number;i++) {
+ child_size = get_field_type_size(tf, event_type->facility,
+ event_type, current_root_offset, current_offset,
+ field->child[i], data);
+ current_offset += child_size;
+ current_root_offset += child_size;
+
+ }
+ size = current_offset;
+ field->field_size = size;
+ }
+ break;
+ case LTT_UNION:
+ if(field->fixed_size == FIELD_FIXED)
+ size = field->field_size;
+ else {
+ size_t current_root_offset = field->offset_root;
+ size_t current_offset = 0;
+ for(i=0;i<type->element_number;i++) {
+ size = get_field_type_size(tf, event_type->facility, event_type,
+ current_root_offset, current_offset,
+ field->child[i], data);
+ size = max(size, field->child[i]->field_size);
+ }
+ field->field_size = size;
+ }
+ break;
+ }
+
+ return size;
+}
+
+
+
+#if 0
/*****************************************************************************
*Function name
* getFieldtypeSize: get the size of the field type (primitive type)
*Input params
- * tracefile : opened trace file
* evT : event type
* offsetRoot : offset from the root
* offsetParent : offset from the parrent
* int : size of the field
****************************************************************************/
-static inline gint getFieldtypeSize(LttTracefile * t,
+static inline gint getFieldtypeSize(LttTracefile *tf,
LttEventType * evT, gint offsetRoot,
- gint offsetParent, LttField * fld, void *evD, LttTrace *trace)
+ gint offsetParent, LttField * fld, void *evD)
{
gint size, size1, element_number, i, offset1, offset2;
LttType * type = fld->field_type;
- if(unlikely(t && evT->latest_block==t->which_block &&
- evT->latest_event==t->which_event)){
- size = fld->field_size;
- goto end_getFieldtypeSize;
- } else {
- /* This likely has been tested with gcov : half of them.. */
- if(unlikely(fld->field_fixed == 1)){
- /* tested : none */
- if(unlikely(fld == evT->root_field)) {
- size = fld->field_size;
- goto end_getFieldtypeSize;
- }
+ /* This likely has been tested with gcov : half of them.. */
+ if(unlikely(fld->field_fixed == 1)){
+ /* tested : none */
+ if(unlikely(fld == evT->root_field)) {
+ size = fld->field_size;
+ goto end_getFieldtypeSize;
}
+ }
- /* From gcov profiling : half string, half struct, can we gain something
- * from that ? (Mathieu) */
- switch(type->type_class) {
- case LTT_ARRAY:
- element_number = (int) type->element_number;
- if(fld->field_fixed == -1){
- size = getFieldtypeSize(t, evT, offsetRoot,
- 0,fld->child[0], NULL, trace);
- if(size == 0){ //has string or sequence
- fld->field_fixed = 0;
- }else{
- fld->field_fixed = 1;
- size *= element_number;
- }
- }else if(fld->field_fixed == 0){// has string or sequence
- size = 0;
- for(i=0;i<element_number;i++){
- size += getFieldtypeSize(t, evT, offsetRoot+size,size,
- fld->child[0], evD+size, trace);
- }
- }else size = fld->field_size;
- if(unlikely(!evD)){
- fld->fixed_root = (offsetRoot==-1) ? 0 : 1;
- fld->fixed_parent = (offsetParent==-1) ? 0 : 1;
- }
-
- break;
-
- case LTT_SEQUENCE:
- size1 = (int) ltt_type_size(trace, type);
- if(fld->field_fixed == -1){
- fld->sequ_number_size = size1;
+ /* From gcov profiling : half string, half struct, can we gain something
+ * from that ? (Mathieu) */
+ switch(type->type_class) {
+ case LTT_ARRAY:
+ element_number = (int) type->element_number;
+ if(fld->field_fixed == -1){
+ size = getFieldtypeSize(tf, evT, offsetRoot,
+ 0,fld->child[0], NULL);
+ if(size == 0){ //has string or sequence
fld->field_fixed = 0;
- size = getFieldtypeSize(t, evT, offsetRoot,
- 0,fld->child[0], NULL, trace);
- fld->element_size = size;
- }else{//0: sequence
- element_number = getIntNumber(t->trace->reverse_byte_order,size1,evD);
- type->element_number = element_number;
- if(fld->element_size > 0){
- size = element_number * fld->element_size;
- }else{//sequence has string or sequence
- size = 0;
- for(i=0;i<element_number;i++){
- size += getFieldtypeSize(t, evT, offsetRoot+size+size1,size+size1,
- fld->child[0], evD+size+size1, trace);
- }
- }
- size += size1;
- }
- if(unlikely(!evD)){
- fld->fixed_root = (offsetRoot==-1) ? 0 : 1;
- fld->fixed_parent = (offsetParent==-1) ? 0 : 1;
+ }else{
+ fld->field_fixed = 1;
+ size *= element_number;
}
-
- break;
-
- case LTT_STRING:
+ }else if(fld->field_fixed == 0){// has string or sequence
size = 0;
- if(fld->field_fixed == -1){
- fld->field_fixed = 0;
- }else{//0: string
- /* Hope my implementation is faster than strlen (Mathieu) */
- char *ptr=(char*)evD;
- size = 1;
- /* from gcov : many many strings are empty, make it the common case.*/
- while(unlikely(*ptr != '\0')) { size++; ptr++; }
- //size = ptr - (char*)evD + 1; //include end : '\0'
+ for(i=0;i<element_number;i++){
+ size += getFieldtypeSize(tf, evT, offsetRoot+size,size,
+ fld->child[0], evD+size);
}
+ }else size = fld->field_size;
+ if(unlikely(!evD)){
fld->fixed_root = (offsetRoot==-1) ? 0 : 1;
fld->fixed_parent = (offsetParent==-1) ? 0 : 1;
+ }
- break;
-
- case LTT_STRUCT:
- element_number = (int) type->element_number;
- size = 0;
- /* tested with gcov */
- if(unlikely(fld->field_fixed == -1)){
- offset1 = offsetRoot;
- offset2 = 0;
+ break;
+
+ case LTT_SEQUENCE:
+ size1 = (int) ltt_type_size(fac, type);
+ if(fld->field_fixed == -1){
+ fld->sequ_number_size = size1;
+ fld->field_fixed = 0;
+ size = getFieldtypeSize(evT, offsetRoot,
+ 0,fld->child[0], NULL);
+ fld->element_size = size;
+ }else{//0: sequence
+ element_number = getIntNumber(tf,size1,evD);
+ type->element_number = element_number;
+ if(fld->element_size > 0){
+ size = element_number * fld->element_size;
+ }else{//sequence has string or sequence
+ size = 0;
for(i=0;i<element_number;i++){
- size1=getFieldtypeSize(t, evT,offset1,offset2,
- fld->child[i], NULL, trace);
- if(likely(size1 > 0 && size >= 0)){
- size += size1;
- if(likely(offset1 >= 0)) offset1 += size1;
- offset2 += size1;
- }else{
- size = -1;
- offset1 = -1;
- offset2 = -1;
- }
+ size += getFieldtypeSize(tf, evT,
+ offsetRoot+size+size1,size+size1,
+ fld->child[0], evD+size+size1);
}
- if(unlikely(size == -1)){
- fld->field_fixed = 0;
- size = 0;
- }else fld->field_fixed = 1;
- }else if(likely(fld->field_fixed == 0)){
- offset1 = offsetRoot;
- offset2 = 0;
- for(i=0;unlikely(i<element_number);i++){
- size=getFieldtypeSize(t,evT,offset1,offset2,
- fld->child[i],evD+offset2, trace);
- offset1 += size;
- offset2 += size;
- }
- size = offset2;
- }else size = fld->field_size;
+ }
+ size += size1;
+ }
+ if(unlikely(!evD)){
fld->fixed_root = (offsetRoot==-1) ? 0 : 1;
fld->fixed_parent = (offsetParent==-1) ? 0 : 1;
- break;
+ }
- default:
- if(unlikely(fld->field_fixed == -1)){
- size = (int) ltt_type_size(trace, type);
- fld->field_fixed = 1;
- }else size = fld->field_size;
- if(unlikely(!evD)){
- fld->fixed_root = (offsetRoot==-1) ? 0 : 1;
- fld->fixed_parent = (offsetParent==-1) ? 0 : 1;
+ break;
+
+ case LTT_STRING:
+ size = 0;
+ if(fld->field_fixed == -1){
+ fld->field_fixed = 0;
+ }else{//0: string
+ /* Hope my implementation is faster than strlen (Mathieu) */
+ char *ptr=(char*)evD;
+ size = 1;
+ /* from gcov : many many strings are empty, make it the common case.*/
+ while(unlikely(*ptr != '\0')) { size++; ptr++; }
+ //size = ptr - (char*)evD + 1; //include end : '\0'
+ }
+ fld->fixed_root = (offsetRoot==-1) ? 0 : 1;
+ fld->fixed_parent = (offsetParent==-1) ? 0 : 1;
+
+ break;
+
+ case LTT_STRUCT:
+ element_number = (int) type->element_number;
+ size = 0;
+ /* tested with gcov */
+ if(unlikely(fld->field_fixed == -1)){
+ offset1 = offsetRoot;
+ offset2 = 0;
+ for(i=0;i<element_number;i++){
+ size1=getFieldtypeSize(tf, evT,offset1,offset2,
+ fld->child[i], NULL);
+ if(likely(size1 > 0 && size >= 0)){
+ size += size1;
+ if(likely(offset1 >= 0)) offset1 += size1;
+ offset2 += size1;
+ }else{
+ size = -1;
+ offset1 = -1;
+ offset2 = -1;
+ }
}
- break;
- }
+ if(unlikely(size == -1)){
+ fld->field_fixed = 0;
+ size = 0;
+ }else fld->field_fixed = 1;
+ }else if(likely(fld->field_fixed == 0)){
+ offset1 = offsetRoot;
+ offset2 = 0;
+ for(i=0;unlikely(i<element_number);i++){
+ size=getFieldtypeSize(tf, evT, offset1, offset2,
+ fld->child[i], evD+offset2);
+ offset1 += size;
+ offset2 += size;
+ }
+ size = offset2;
+ }else size = fld->field_size;
+ fld->fixed_root = (offsetRoot==-1) ? 0 : 1;
+ fld->fixed_parent = (offsetParent==-1) ? 0 : 1;
+ break;
+
+ default:
+ if(unlikely(fld->field_fixed == -1)){
+ size = (int) ltt_type_size(LTT_GET_BO(tf), type);
+ fld->field_fixed = 1;
+ }else size = fld->field_size;
+ if(unlikely(!evD)){
+ fld->fixed_root = (offsetRoot==-1) ? 0 : 1;
+ fld->fixed_parent = (offsetParent==-1) ? 0 : 1;
+ }
+ break;
}
fld->offset_root = offsetRoot;
return size;
}
-
+#endif //0
/*****************************************************************************
*Function name
- * getIntNumber : get an integer number
+ * get_int : get an integer number
*Input params
+ * reverse_byte_order: must we reverse the byte order ?
* size : the size of the integer
- * evD : the event data
+ * ptr : the data pointer
*Return value
* gint64 : a 64 bits integer
****************************************************************************/
-gint64 getIntNumber(gboolean reverse_byte_order, int size, void *evD)
+gint64 get_int(gboolean reverse_byte_order, gint size, void *data)
{
- gint64 i;
+ gint64 val;
switch(size) {
- case 1: i = *((gint8*)evD); break;
- case 2: i = ltt_get_int16(reverse_byte_order, evD); break;
- case 4: i = ltt_get_int32(reverse_byte_order, evD); break;
- case 8: i = ltt_get_int64(reverse_byte_order, evD); break;
- default: i = ltt_get_int64(reverse_byte_order, evD);
- g_critical("getIntNumber : integer size %d unknown", size);
+ case 1: val = *((gint8*)data); break;
+ case 2: val = ltt_get_int16(reverse_byte_order, data); break;
+ case 4: val = ltt_get_int32(reverse_byte_order, data); break;
+ case 8: val = ltt_get_int64(reverse_byte_order, data); break;
+ default: val = ltt_get_int64(reverse_byte_order, data);
+ g_critical("get_int : integer size %d unknown", size);
break;
}
- return i;
+ return val;
}
-#if 0
+
/*****************************************************************************
*Function name
- * getDataEndianType : get the data type size and endian type of the local
- * machine
+ * get_uint : get an unsigned integer number
*Input params
- * size : size of data type
- * endian : endian type, little or big
+ * reverse_byte_order: must we reverse the byte order ?
+ * size : the size of the integer
+ * ptr : the data pointer
+ *Return value
+ * guint64 : a 64 bits unsigned integer
****************************************************************************/
-void getDataEndianType(LttArchSize * size, LttArchEndian * endian)
+guint64 get_uint(gboolean reverse_byte_order, gint size, void *data)
{
- int i = 1;
- char c = (char) i;
- int sizeInt=sizeof(int), sizeLong=sizeof(long), sizePointer=sizeof(void *);
-
- if(c == 1) *endian = LTT_LITTLE_ENDIAN;
- else *endian = LTT_BIG_ENDIAN;
-
- if(sizeInt == 2 && sizeLong == 4 && sizePointer == 4)
- *size = LTT_LP32;
- else if(sizeInt == 4 && sizeLong == 4 && sizePointer == 4)
- *size = LTT_ILP32;
- else if(sizeInt == 4 && sizeLong == 8 && sizePointer == 8)
- *size = LTT_LP64;
- else if(sizeInt == 8 && sizeLong == 8 && sizePointer == 8)
- *size = LTT_ILP64;
- else *size = LTT_UNKNOWN;
+ guint64 val;
+
+ switch(size) {
+ case 1: val = *((gint8*)data); break;
+ case 2: val = ltt_get_uint16(reverse_byte_order, data); break;
+ case 4: val = ltt_get_uint32(reverse_byte_order, data); break;
+ case 8: val = ltt_get_uint64(reverse_byte_order, data); break;
+ default: val = ltt_get_uint64(reverse_byte_order, data);
+ g_critical("get_uint : unsigned integer size %d unknown",
+ size);
+ break;
+ }
+
+ return val;
}
-#endif //0
+
+
/* get the node name of the system */
char * ltt_trace_system_description_node_name (LttSystemDescription * s)
projects / lttv.git / blobdiff