X-Git-Url: http://git.lttng.org./?a=blobdiff_plain;f=ltt%2Fbranches%2Fpoly%2Fltt%2Fevent.c;h=a5b046814027e30f74b3f9410518a85284cebdb0;hb=a4fa48a2c30e710db39d3a7093961257ead5eb0d;hp=20d71d91a17d09b1e4c5e2e8160dc2425c045111;hpb=6cd62ccfe338056a2a7571addbb63e0e16354e86;p=lttv.git diff --git a/ltt/branches/poly/ltt/event.c b/ltt/branches/poly/ltt/event.c index 20d71d91..a5b04681 100644 --- a/ltt/branches/poly/ltt/event.c +++ b/ltt/branches/poly/ltt/event.c @@ -1,22 +1,193 @@ +/* This file is part of the Linux Trace Toolkit viewer + * Copyright (C) 2003-2004 Xiangxiu Yang + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License Version 2 as + * published by the Free Software Foundation; + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, + * MA 02111-1307, USA. + */ + +#ifdef HAVE_CONFIG_H +#include +#endif + #include +#include +#include +#include + #include -#include +#include -#include "LTTTypes.h" #include "parser.h" +#include +#include "ltt-private.h" #include +#include +#include + +LttEvent *ltt_event_new() +{ + return g_new(LttEvent, 1); +} + +void ltt_event_destroy(LttEvent *event) +{ + g_free(event); +} + +#if 0 +/* Use get_field_type_size instead */ /***************************************************************************** *Function name - * ltt_facility_eventtype_id: get event type id - * (base id + position of the event) + * ltt_event_refresh_fields : refresh fields of an event *Input params - * e : an instance of an event type + * offsetRoot : offset from the root + * offsetParent : offset from the parent + * fld : field + * evD : event data + * reverse_byte_order : 1 or 0 *Return value - * unsigned : event type id + * int : size of the field ****************************************************************************/ -unsigned ltt_event_eventtype_id(ltt_event *e) +int ltt_event_refresh_fields(int offsetRoot,int offsetParent, + LttField * fld, void *evD, gboolean reverse_byte_order) +{ + int size, size1, element_number, i, offset1, offset2; + LttType * type = fld->field_type; + + switch(type->type_class) { + case LTT_ARRAY: + element_number = (int) type->element_number; + if(fld->field_fixed == 0){// has string or sequence + size = 0; + for(i=0;ichild[0], evD+size, reverse_byte_order); + } + }else size = fld->field_size; + break; + + case LTT_SEQUENCE: + size1 = fld->sequ_number_size; + element_number = getIntNumber(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;ichild[0], evD+size+size1, reverse_byte_order); + } + size += size1; + } + break; + + case LTT_STRING: + size = strlen((gchar*)evD) + 1; //include end : '\0' + break; + + case LTT_STRUCT: + element_number = (int) type->element_number; + if(fld->field_fixed == 0){ + offset1 = offsetRoot; + offset2 = 0; + for(i=0;ichild[i],evD+offset2, reverse_byte_order); + offset1 += size; + offset2 += size; + } + size = offset2; + }else size = fld->field_size; + break; + + case LTT_UNION: + size = fld->field_size; + break; + + default: + size = fld->field_size; + } + +#if 0 + if(type->type_class != LTT_STRUCT && type->type_class != LTT_ARRAY && + type->type_class != LTT_SEQUENCE && type->type_class != LTT_STRING){ + size = fld->field_size; + }else if(type->type_class == LTT_ARRAY){ + element_number = (int) type->element_number; + if(fld->field_fixed == 0){// has string or sequence + size = 0; + for(i=0;ichild[0], evD+size); + } + }else size = fld->field_size; + }else if(type->type_class == LTT_SEQUENCE){ + size1 = fld->sequ_number_size; + element_number = getIntNumber(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;ichild[0], evD+size+size1); + } + size += size1; + } + }else if(type->type_class == LTT_STRING){ + size = strlen((char*)evD) + 1; //include end : '\0' + }else if(type->type_class == LTT_STRUCT){ + element_number = (int) type->element_number; + if(fld->field_fixed == 0){ + offset1 = offsetRoot; + offset2 = 0; + for(i=0;ichild[i],evD+offset2); + offset1 += size; + offset2 += size; + } + size = offset2; + }else size = fld->field_size; + } +#endif //0 + fld->offset_root = offsetRoot; + fld->offset_parent = offsetParent; + fld->fixed_root = (offsetRoot==-1) ? 0 : 1; + fld->fixed_parent = (offsetParent==-1) ? 0 : 1; + fld->field_size = size; + + return size; +} +#endif //0 + + +/***************************************************************************** + *Function name + * ltt_event_eventtype_id: get event type id + * (base id + position of the event) + *Input params + * e : an instance of an event type + *Return value + * unsigned : event type id + ****************************************************************************/ + +unsigned ltt_event_eventtype_id(const LttEvent *e) { return (unsigned) e->event_id; } @@ -27,19 +198,32 @@ unsigned ltt_event_eventtype_id(ltt_event *e) *Input params * e : an instance of an event type *Return value - * ltt_facility * : the facility of the event + * LttFacility * : the facility of the event ****************************************************************************/ -ltt_facility *ltt_event_facility(ltt_event *e) +LttFacility *ltt_event_facility(const LttEvent *e) { - ltt_eventtype * evT; - ptr_wrap * ptr; - ptr = (ptr_wrap*)g_ptr_array_index(e->tracefile->eventtype_event_id, - (gint)(e->event_id)); - evT = (ltt_eventtype*)(ptr->ptr); - - if(!evT) return NULL; - return evT->facility; + LttTrace * trace = e->tracefile->trace; + unsigned id = e->facility_id; + LttFacility *facility = ltt_trace_facility_by_id(trace,id); + + g_assert(facility->exists); + + return facility; +} + +/***************************************************************************** + *Function name + * ltt_event_facility_id : get the facility id of the event + *Input params + * e : an instance of an event type + *Return value + * unsigned : the facility of the event + ****************************************************************************/ + +unsigned ltt_event_facility_id(const LttEvent *e) +{ + return e->facility_id; } /***************************************************************************** @@ -48,15 +232,37 @@ ltt_facility *ltt_event_facility(ltt_event *e) *Input params * e : an instance of an event type *Return value - * ltt_eventtype * : the event type of the event + * LttEventType * : the event type of the event ****************************************************************************/ -ltt_eventtype *ltt_event_eventtype(ltt_event *e) +LttEventType *ltt_event_eventtype(const LttEvent *e) { - ptr_wrap * ptr; - ptr = (ptr_wrap*)g_ptr_array_index(e->tracefile->eventtype_event_id, - (gint)(e->event_id)); - return (ltt_eventtype*)(ptr->ptr); + LttFacility* facility = ltt_event_facility(e); + if(!facility) return NULL; + return &g_array_index(facility->events, LttEventType, e->event_id); +} + +/***************************************************************************** + *Function name + * ltt_event_field : get the root field of the event + *Input params + * e : an instance of an event type + *Return value + * LttField * : the root field of the event + ****************************************************************************/ + +LttField *ltt_event_field(LttEvent *e) +{ + LttField * field; + LttEventType * event_type = ltt_event_eventtype(e); + if(unlikely(!event_type)) return NULL; + field = event_type->root_field; + if(unlikely(!field)) return NULL; + + get_field_type_size(e->tracefile, event_type, 0, 0, + field, e->data); + + return field; } /***************************************************************************** @@ -65,12 +271,12 @@ ltt_eventtype *ltt_event_eventtype(ltt_event *e) *Input params * e : an instance of an event type *Return value - * ltt_time : the time of the event + * LttTime : the time of the event ****************************************************************************/ -ltt_time ltt_event_time(ltt_event *e) +LttTime ltt_event_time(const LttEvent *e) { - return getEventTime(e->tracefile); + return e->event_time; } /***************************************************************************** @@ -79,40 +285,134 @@ ltt_time ltt_event_time(ltt_event *e) *Input params * e : an instance of an event type *Return value - * ltt_time : the cycle count of the event + * LttCycleCount : the cycle count of the event ****************************************************************************/ -ltt_cycle_count ltt_event_cycle_count(ltt_event *e) +LttCycleCount ltt_event_cycle_count(const LttEvent *e) { - return e->cycle_count; + return e->tsc; } + + /***************************************************************************** *Function name - * ltt_event_cpu_i: get the cpu id where the event happens + * ltt_event_position_get : get the event position data *Input params - * e : an instance of an event type - *Return value - * unsigned : the cpu id + * e : an instance of an event type + * ep : a pointer to event's position structure + * tf : tracefile pointer + * block : current block + * offset : current offset + * tsc : current tsc + ****************************************************************************/ +void ltt_event_position_get(LttEventPosition *ep, LttTracefile **tf, + guint *block, guint *offset, guint64 *tsc) +{ + *tf = ep->tracefile; + *block = ep->block; + *offset = ep->offset; + *tsc = ep->tsc; +} + + +/***************************************************************************** + *Function name + * ltt_event_position : get the event's position + *Input params + * e : an instance of an event type + * ep : a pointer to event's position structure + ****************************************************************************/ + +void ltt_event_position(LttEvent *e, LttEventPosition *ep) +{ + ep->tracefile = e->tracefile; + ep->block = e->block; + ep->offset = e->offset; + ep->tsc = e->tsc; +} + +LttEventPosition * ltt_event_position_new() +{ + return g_new(LttEventPosition, 1); +} + + +/***************************************************************************** + * Function name + * ltt_event_position_compare : compare two positions + * A NULL value is infinite. + * Input params + * ep1 : a pointer to event's position structure + * ep2 : a pointer to event's position structure + * Return + * -1 is ep1 < ep2 + * 1 if ep1 > ep2 + * 0 if ep1 == ep2 ****************************************************************************/ -unsigned ltt_event_cpu_id(ltt_event *e) + +gint ltt_event_position_compare(const LttEventPosition *ep1, + const LttEventPosition *ep2) { - return e->tracefile->trace_header->cpu_id; + if(ep1 == NULL && ep2 == NULL) + return 0; + if(ep1 != NULL && ep2 == NULL) + return -1; + if(ep1 == NULL && ep2 != NULL) + return 1; + + if(ep1->tracefile != ep2->tracefile) + g_error("ltt_event_position_compare on different tracefiles makes no sense"); + + if(ep1->block < ep2->block) + return -1; + if(ep1->block > ep2->block) + return 1; + if(ep1->offset < ep2->offset) + return -1; + if(ep1->offset > ep2->offset) + return 1; + return 0; +} + +/***************************************************************************** + * Function name + * ltt_event_position_copy : copy position + * Input params + * src : a pointer to event's position structure source + * dest : a pointer to event's position structure dest + * Return + * void + ****************************************************************************/ +void ltt_event_position_copy(LttEventPosition *dest, + const LttEventPosition *src) +{ + if(src == NULL) + dest = NULL; + else + *dest = *src; +} + + + +LttTracefile *ltt_event_position_tracefile(LttEventPosition *ep) +{ + return ep->tracefile; } /***************************************************************************** *Function name - * ltt_event_cpu_i: get the name of the system where the event happens + * ltt_event_cpu_i: get the cpu id where the event happens *Input params * e : an instance of an event type *Return value - * char * : the name of the system + * unsigned : the cpu id ****************************************************************************/ -char *ltt_event_system_name(ltt_event *e) +unsigned ltt_event_cpu_id(LttEvent *e) { - return e->tracefile->trace_header->system_name; + return e->tracefile->cpu_num; } /***************************************************************************** @@ -124,7 +424,7 @@ char *ltt_event_system_name(ltt_event *e) * void * : pointer to the raw data for the event ****************************************************************************/ -void *ltt_event_data(ltt_event *e) +void *ltt_event_data(LttEvent *e) { return e->data; } @@ -136,19 +436,21 @@ void *ltt_event_data(ltt_event *e) * to each event. This function returns the number of * elements for an array or sequence field in an event. *Input params - * e : an instance of an event type ???? + * e : an instance of an event type * f : a field of the instance *Return value * unsigned : the number of elements for an array/sequence field ****************************************************************************/ - -unsigned ltt_event_field_element_number(ltt_event *e, ltt_field *f) +guint64 ltt_event_field_element_number(LttEvent *e, LttField *f) { if(f->field_type->type_class != LTT_ARRAY && f->field_type->type_class != LTT_SEQUENCE) return 0; - - return f->field_type->element_number; + + if(f->field_type->type_class == LTT_ARRAY) + return f->field_type->element_number; + return ltt_get_uint(LTT_GET_BO(e->tracefile), f->sequ_number_size, + e + f->offset_root); } /***************************************************************************** @@ -156,195 +458,329 @@ unsigned ltt_event_field_element_number(ltt_event *e, ltt_field *f) * ltt_event_field_element_select * : Set the currently selected element for a sequence or * array field + * O(1) if fields are of fixed size, else O(n) if fields are + * of variable size. *Input params - * e : an instance of an event type ???? + * e : an instance of an event type * f : a field of the instance - * i : the ith element - *Return value - * int : ???? error number + * i : the ith element (0, ...) ****************************************************************************/ - -int ltt_event_field_element_select(ltt_event *e, ltt_field *f, unsigned i) +void ltt_event_field_element_select(LttEvent *e, LttField *f, unsigned i) { - if(f->field_type->type_class != LTT_ARRAY && + unsigned element_number; + LttField *field; + unsigned int k; + size_t size; + LttEventType *event_type; + + if(f->field_type->type_class != LTT_ARRAY && f->field_type->type_class != LTT_SEQUENCE) - return -1; //????? - - if(f->field_type->element_number < i || i == 0) return -1; //???? - - f->current_element = i - 1; - return 0; + return ; + + element_number = ltt_event_field_element_number(e,f); + event_type = ltt_event_eventtype(e); + /* Sanity check for i : 0..n-1 only, and must be lower or equal element_number + */ + if(i >= element_number) return; + + field = f->child[0]; + + if(f->field_type->type_class == LTT_SEQUENCE) + size = f->sequ_number_size; + else + size = 0; + + if(field->fixed_size == FIELD_FIXED) { + size += field->field_size * i; + + get_field_type_size(e->tracefile, event_type, + f->offset_root+size, size, field, e->data); + + } else { + for(k=0;k<=i;k++){ + size += get_field_type_size(e->tracefile, event_type, + f->offset_root+size, size, field, e->data); + } + } + f->current_element = i; } /***************************************************************************** * These functions extract data from an event after architecture specific * conversions ****************************************************************************/ - -unsigned ltt_event_get_unsigned(ltt_event *e, ltt_field *f) +guint32 ltt_event_get_unsigned(LttEvent *e, LttField *f) { - ltt_arch_size rSize = e->tracefile->trace_header->arch_size; - int revFlag = e->tracefile->my_arch_endian == - e->tracefile->trace_header->arch_endian ? 0:1; - ltt_type_enum t = f->field_type->type_class; - - if(t != LTT_UINT || t != LTT_ENUM) - g_error("The type of the field is not unsigned int\n"); - - if(rSize == LTT_LP32){ - if(f->field_size != 2) - g_error("The type of the field is not unsigned int: uint16_t\n"); - else{ - uint16_t x = *(uint16_t *)(e->data + f->offset_root); - return (unsigned) (revFlag ? BREV16(x) : x); - } - }else if(rSize == LTT_ILP32 || rSize == LTT_LP64){ - if(f->field_size != 4) - g_error("The type of the field is not unsigned int: uint32_t\n"); - else{ - uint32_t x = *(uint32_t *)(e->data + f->offset_root); - return (unsigned) (revFlag ? BREV32(x): x); - } - }else if(rSize == LTT_ILP64){ - if(f->field_size != 8) - g_error("The type of the field is not unsigned int: uint64_t\n"); - else{ - uint64_t x = *(uint64_t *)(e->data + f->offset_root); - return (unsigned) (revFlag ? BREV64(x): x); - } + gboolean reverse_byte_order = LTT_GET_BO(e->tracefile); + + LttTypeEnum t = f->field_type->type_class; + + g_assert(t == LTT_UINT || t == LTT_ENUM); + + if(f->field_size == 1){ + guint8 x = *(guint8 *)(e->data + f->offset_root); + return (guint32) x; + }else if(f->field_size == 2){ + return (guint32)ltt_get_uint16(reverse_byte_order, e->data + f->offset_root); + }else if(f->field_size == 4){ + return (guint32)ltt_get_uint32(reverse_byte_order, e->data + f->offset_root); + } +#if 0 + else if(f->field_size == 8){ + guint64 x = *(guint64 *)(e->data + f->offset_root); + if(e->tracefile->trace->my_arch_endian == LTT_LITTLE_ENDIAN) + return (unsigned int) (revFlag ? GUINT64_FROM_BE(x): x); + else + return (unsigned int) (revFlag ? GUINT64_FROM_LE(x): x); } +#endif //0 + g_critical("ltt_event_get_unsigned : field size %i unknown", f->field_size); + return 0; } -int ltt_event_get_int(ltt_event *e, ltt_field *f) +gint32 ltt_event_get_int(LttEvent *e, LttField *f) { - ltt_arch_size rSize = e->tracefile->trace_header->arch_size; - int revFlag = e->tracefile->my_arch_endian == - e->tracefile->trace_header->arch_endian ? 0:1; - - if(f->field_type->type_class != LTT_INT) - g_error("The type of the field is not int\n"); - - if(rSize == LTT_LP32){ - if(f->field_size != 2) - g_error("The type of the field is not int: int16_t\n"); - else{ - int16_t x = *(int16_t *)(e->data + f->offset_root); - return (int) (revFlag ? BREV16(x) : x); - } - }else if(rSize == LTT_ILP32 || rSize == LTT_LP64){ - if(f->field_size != 4) - g_error("The type of the field is not int: int32_t\n"); - else{ - int32_t x = *(int32_t *)(e->data + f->offset_root); - return (int) (revFlag ? BREV32(x): x); - } - }else if(rSize == LTT_ILP64){ - if(f->field_size != 8) - g_error("The type of the field is not int: int64_t\n"); - else{ - int64_t x = *(int64_t *)(e->data + f->offset_root); - return (int) (revFlag ? BREV64(x): x); - } + gboolean reverse_byte_order = LTT_GET_BO(e->tracefile); + + g_assert(f->field_type->type_class == LTT_INT); + + if(f->field_size == 1){ + gint8 x = *(gint8 *)(e->data + f->offset_root); + return (gint32) x; + }else if(f->field_size == 2){ + return (gint32)ltt_get_int16(reverse_byte_order, e->data + f->offset_root); + }else if(f->field_size == 4){ + return (gint32)ltt_get_int32(reverse_byte_order, e->data + f->offset_root); + } +#if 0 + else if(f->field_size == 8){ + gint64 x = *(gint64 *)(e->data + f->offset_root); + if(e->tracefile->trace->my_arch_endian == LTT_LITTLE_ENDIAN) + return (int) (revFlag ? GINT64_FROM_BE(x): x); + else + return (int) (revFlag ? GINT64_FROM_LE(x): x); } +#endif //0 + g_critical("ltt_event_get_int : field size %i unknown", f->field_size); + return 0; } -unsigned long ltt_event_get_long_unsigned(ltt_event *e, ltt_field *f) +guint64 ltt_event_get_long_unsigned(LttEvent *e, LttField *f) { - ltt_arch_size rSize = e->tracefile->trace_header->arch_size; - int revFlag = e->tracefile->my_arch_endian == - e->tracefile->trace_header->arch_endian ? 0:1; - ltt_type_enum t = f->field_type->type_class; - - if(t != LTT_UINT || t != LTT_ENUM) - g_error("The type of the field is not unsigned long\n"); - - if(rSize == LTT_LP32 || rSize == LTT_ILP32 ){ - if(f->field_size != 4) - g_error("The type of the field is not unsigned long: uint32_t\n"); - else{ - uint32_t x = *(uint32_t *)(e->data + f->offset_root); - return (unsigned long) (revFlag ? BREV32(x) : x); - } - }else if(rSize == LTT_LP64 || rSize == LTT_ILP64){ - if(f->field_size != 8) - g_error("The type of the field is not unsigned long: uint64_t\n"); - else{ - uint64_t x = *(uint64_t *)(e->data + f->offset_root); - return (unsigned long) (revFlag ? BREV64(x): x); - } + gboolean reverse_byte_order = LTT_GET_BO(e->tracefile); + + LttTypeEnum t = f->field_type->type_class; + + g_assert(t == LTT_UINT || t == LTT_ENUM + || t == LTT_ULONG || LTT_SIZE_T || LTT_OFF_T || LTT_POINTER); + + if(f->field_size == 1){ + guint8 x = *(guint8 *)(e->data + f->offset_root); + return (guint64) x; + }else if(f->field_size == 2){ + return (guint64)ltt_get_uint16(reverse_byte_order, e->data + f->offset_root); + }else if(f->field_size == 4){ + return (guint64)ltt_get_uint32(reverse_byte_order, e->data + f->offset_root); + }else if(f->field_size == 8){ + return ltt_get_uint64(reverse_byte_order, e->data + f->offset_root); } + g_critical("ltt_event_get_long_unsigned : field size %i unknown", f->field_size); + return 0; } -long int ltt_event_get_long_int(ltt_event *e, ltt_field *f) +gint64 ltt_event_get_long_int(LttEvent *e, LttField *f) { - ltt_arch_size rSize = e->tracefile->trace_header->arch_size; - int revFlag = e->tracefile->my_arch_endian == - e->tracefile->trace_header->arch_endian ? 0:1; - - if( f->field_type->type_class != LTT_INT) - g_error("The type of the field is not long int\n"); - - if(rSize == LTT_LP32 || rSize == LTT_ILP32 ){ - if(f->field_size != 4) - g_error("The type of the field is not long int: int32_t\n"); - else{ - int32_t x = *(int32_t *)(e->data + f->offset_root); - return (long) (revFlag ? BREV32(x) : x); - } - }else if(rSize == LTT_LP64 || rSize == LTT_ILP64){ - if(f->field_size != 8) - g_error("The type of the field is not long int: int64_t\n"); - else{ - int64_t x = *(int64_t *)(e->data + f->offset_root); - return (long) (revFlag ? BREV64(x): x); - } + //int revFlag = e->tracefile->trace->my_arch_endian == + // e->tracefile->trace->system_description->endian ? 0:1; + gboolean reverse_byte_order = LTT_GET_BO(e->tracefile); + + g_assert( f->field_type->type_class == LTT_INT + || f->field_type->type_class == LTT_LONG + || f->field_type->type_class == LTT_SSIZE_T); + + if(f->field_size == 1){ + gint8 x = *(gint8 *)(e->data + f->offset_root); + return (gint64) x; + }else if(f->field_size == 2){ + return (gint64)ltt_get_int16(reverse_byte_order, e->data + f->offset_root); + }else if(f->field_size == 4){ + return (gint64)ltt_get_int32(reverse_byte_order, e->data + f->offset_root); + }else if(f->field_size == 8){ + return ltt_get_int64(reverse_byte_order, e->data + f->offset_root); } + g_critical("ltt_event_get_long_int : field size %i unknown", f->field_size); + return 0; } -float ltt_event_get_float(ltt_event *e, ltt_field *f) +float ltt_event_get_float(LttEvent *e, LttField *f) { - int revFlag = e->tracefile->my_arch_endian == - e->tracefile->trace_header->arch_endian ? 0:1; + g_assert(LTT_HAS_FLOAT(e->tracefile)); + gboolean reverse_byte_order = LTT_GET_FLOAT_BO(e->tracefile); - if(f->field_type->type_class != LTT_FLOAT || - (f->field_type->type_class == LTT_FLOAT && f->field_size != 4)) - g_error("The type of the field is not float\n"); + g_assert(f->field_type->type_class == LTT_FLOAT && f->field_size == 4); - if(revFlag == 0) return *(float *)(e->data + f->offset_root); + if(reverse_byte_order == 0) return *(float *)(e->data + f->offset_root); else{ - uint32_t aInt; - memcpy((void*)&aInt, e->data + f->offset_root, 4); - aInt = ___swab32(aInt); - return *((float*)&aInt); + void *ptr = e->data + f->offset_root; + guint32 value = bswap_32(*(guint32*)ptr); + return *(float*)&value; } } -double ltt_event_get_double(ltt_event *e, ltt_field *f) +double ltt_event_get_double(LttEvent *e, LttField *f) { - int revFlag = e->tracefile->my_arch_endian == - e->tracefile->trace_header->arch_endian ? 0:1; + g_assert(LTT_HAS_FLOAT(e->tracefile)); + gboolean reverse_byte_order = LTT_GET_FLOAT_BO(e->tracefile); - if(f->field_type->type_class != LTT_FLOAT || - (f->field_type->type_class == LTT_FLOAT && f->field_size != 8)) - g_error("The type of the field is not double\n"); + g_assert(f->field_type->type_class == LTT_FLOAT && f->field_size == 8); - if(revFlag == 0) return *(double *)(e->data + f->offset_root); - else{ - uint64_t aInt; - memcpy((void*)&aInt, e->data + f->offset_root, 8); - aInt = ___swab64(aInt); - return *((double *)&aInt); + if(reverse_byte_order == 0) return *(double *)(e->data + f->offset_root); + else { + void *ptr = e->data + f->offset_root; + guint64 value = bswap_64(*(guint64*)ptr); + return *(double*)&value; } } /***************************************************************************** * The string obtained is only valid until the next read from - * the same tracefile. ???? + * the same tracefile. ****************************************************************************/ +char *ltt_event_get_string(LttEvent *e, LttField *f) +{ + g_assert(f->field_type->type_class == LTT_STRING); + + return (gchar*)g_strdup((gchar*)(e->data + f->offset_root)); +} + -char *ltt_event_get_string(ltt_event *e, ltt_field *f) +/***************************************************************************** + *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) { - if(f->field_type->type_class != LTT_STRING) - g_error("The field contains no string\n"); - return (char*)g_strdup((char*)(e->data + f->offset_root)); + 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, + offset_root, offset_parent, + field->child[0], data)); + } else { + size += field->sequ_number_size; + for(i=0;ichild[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;ifield_type->element_number;i++) { + size_t child_size; + child_size = get_field_type_size(tf, 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;ielement_number;i++) { + child_size = get_field_type_size(tf, + 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;ielement_number;i++) { + size = get_field_type_size(tf, 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; } + +