X-Git-Url: https://git.lttng.org/?a=blobdiff_plain;f=ltt%2Fbranches%2Fpoly%2Fltt%2Fevent.c;h=8d1733409d7e6c15396a6e9489bfad5f9024cbc5;hb=29ec67861cc68f03b93a5a4c5a7e2a002cf3170e;hp=6265f7fbd6e92188062cd14083f1c2e0fbc7a0fe;hpb=743e50fd0105daeea4804d68989965399bf3a4d3;p=lttv.git diff --git a/ltt/branches/poly/ltt/event.c b/ltt/branches/poly/ltt/event.c index 6265f7fb..8d173340 100644 --- a/ltt/branches/poly/ltt/event.c +++ b/ltt/branches/poly/ltt/event.c @@ -1,283 +1,7 @@ -/* 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 "parser.h" -#include -#include "ltt-private.h" #include -#include #include - - - -void compute_fields_offsets(LttTracefile *tf, - LttFacility *fac, LttField *field, off_t *offset, void *root); - - -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_event_refresh_fields : refresh fields of an event - *Input params - * offsetRoot : offset from the root - * offsetParent : offset from the parent - * fld : field - * evD : event data - * reverse_byte_order : 1 or 0 - *Return value - * int : size of the field - ****************************************************************************/ - -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; -} - -/***************************************************************************** - *Function name - * ltt_event_facility : get the facility of the event - *Input params - * e : an instance of an event type - *Return value - * LttFacility * : the facility of the event - ****************************************************************************/ - -LttFacility *ltt_event_facility(const LttEvent *e) -{ - 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; -} - -/***************************************************************************** - *Function name - * ltt_event_eventtype : get the event type of the event - *Input params - * e : an instance of an event type - *Return value - * LttEventType * : the event type of the event - ****************************************************************************/ - -LttEventType *ltt_event_eventtype(const LttEvent *e) -{ - LttFacility* facility = ltt_event_facility(e); - if(!facility) return NULL; - return &g_array_index(facility->events, LttEventType, e->event_id); -} - - -/***************************************************************************** - *Function name - * ltt_event_time : get the time of the event - *Input params - * e : an instance of an event type - *Return value - * LttTime : the time of the event - ****************************************************************************/ - -LttTime ltt_event_time(const LttEvent *e) -{ - return e->event_time; -} - -/***************************************************************************** - *Function name - * ltt_event_time : get the cycle count of the event - *Input params - * e : an instance of an event type - *Return value - * LttCycleCount : the cycle count of the event - ****************************************************************************/ - -LttCycleCount ltt_event_cycle_count(const LttEvent *e) -{ - return e->tsc; -} - - +#include /***************************************************************************** *Function name @@ -300,6 +24,16 @@ void ltt_event_position_get(LttEventPosition *ep, LttTracefile **tf, } +void ltt_event_position_set(LttEventPosition *ep, LttTracefile *tf, + guint block, guint offset, guint64 tsc) +{ + ep->tracefile = tf; + ep->block = block; + ep->offset = offset; + ep->tsc = tsc; +} + + /***************************************************************************** *Function name * ltt_event_position : get the event's position @@ -386,603 +120,187 @@ LttTracefile *ltt_event_position_tracefile(LttEventPosition *ep) } /***************************************************************************** - *Function name - * ltt_event_cpu_i: get the cpu id where the event happens - *Input params - * e : an instance of an event type - *Return value - * unsigned : the cpu id - ****************************************************************************/ - -unsigned ltt_event_cpu_id(LttEvent *e) -{ - return e->tracefile->cpu_num; -} - -/***************************************************************************** - *Function name - * ltt_event_data : get the raw data for the event - *Input params - * e : an instance of an event type - *Return value - * void * : pointer to the raw data for the event + * These functions extract data from an event after architecture specific + * conversions ****************************************************************************/ - -void *ltt_event_data(LttEvent *e) +guint32 ltt_event_get_unsigned(LttEvent *e, struct marker_field *f) { - return e->data; -} + gboolean reverse_byte_order; + if(unlikely(f->attributes & LTT_ATTRIBUTE_NETWORK_BYTE_ORDER)) { + reverse_byte_order = (g_ntohs(0x1) != 0x1); + } else { + reverse_byte_order = LTT_GET_BO(e->tracefile); + } -/***************************************************************************** - *Function name - * ltt_event_field_element_number - * : The number of elements in a sequence field is specific - * 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 - * f : a field of the instance - *Return value - * unsigned : the number of elements for an array/sequence field - ****************************************************************************/ -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) + switch(f->size) { + case 1: + { + guint8 x = *(guint8 *)(e->data + f->offset); + return (guint32) x; + } + break; + case 2: + return (guint32)ltt_get_uint16(reverse_byte_order, e->data + f->offset); + break; + case 4: + return (guint32)ltt_get_uint32(reverse_byte_order, e->data + f->offset); + break; + case 8: + default: + g_critical("ltt_event_get_unsigned : field size %i unknown", f->size); return 0; - - if(f->field_type.type_class == LTT_ARRAY) - return f->field_type.size; - return ltt_event_get_long_unsigned(e, &g_array_index(f->field_type.fields, - LttField, 0)); + break; + } } -/***************************************************************************** - *Function name - * ltt_event_field_element_select - * : Set the currently selected element for a sequence or - * array field - * O(1) because of offset array. - *Input params - * e : an instance of an event type - * f : a field of the instance - * i : the ith element (0, ...) - *returns : the child field, at the right index, updated. - ****************************************************************************/ -LttField *ltt_event_field_element_select(LttEvent *e, LttField *f, gulong i) +gint32 ltt_event_get_int(LttEvent *e, struct marker_field *f) { - gulong element_number; - LttField *field; - unsigned int k; - size_t size; - LttEventType *event_type; - off_t new_offset; - - if(f->field_type.type_class != LTT_ARRAY && - f->field_type.type_class != LTT_SEQUENCE) - return NULL; - - 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 NULL; - - if(f->field_type.type_class == LTT_ARRAY) { - field = &g_array_index(f->field_type.fields, LttField, 0); + gboolean reverse_byte_order; + if(unlikely(f->attributes & LTT_ATTRIBUTE_NETWORK_BYTE_ORDER)) { + reverse_byte_order = (g_ntohs(0x1) != 0x1); } else { - field = &g_array_index(f->field_type.fields, LttField, 1); + reverse_byte_order = LTT_GET_BO(e->tracefile); } - if(field->field_size != 0) { - if(f->array_offset + (i * field->field_size) == field->offset_root) - return field; /* fixed length child, already at the right offset */ - else - new_offset = f->array_offset + (i * field->field_size); - } else { - /* Var. len. child */ - new_offset = g_array_index(f->dynamic_offsets, off_t, i); + switch(f->size) { + case 1: + { + gint8 x = *(gint8 *)(e->data + f->offset); + return (gint32) x; + } + break; + case 2: + return (gint32)ltt_get_int16(reverse_byte_order, e->data + f->offset); + break; + case 4: + return (gint32)ltt_get_int32(reverse_byte_order, e->data + f->offset); + break; + case 8: + default: + g_critical("ltt_event_get_int : field size %i unknown", f->size); + return 0; + break; } - compute_fields_offsets(e->tracefile, - ltt_event_facility(e), field, &new_offset, e->data); - - return field; } -/***************************************************************************** - * These functions extract data from an event after architecture specific - * conversions - ****************************************************************************/ -guint32 ltt_event_get_unsigned(LttEvent *e, LttField *f) +guint64 ltt_event_get_long_unsigned(LttEvent *e, struct marker_field *f) { - gboolean reverse_byte_order = LTT_GET_BO(e->tracefile); - - LttTypeEnum t = f->field_type.type_class; - - 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); + gboolean reverse_byte_order; + if(unlikely(f->attributes & LTT_ATTRIBUTE_NETWORK_BYTE_ORDER)) { + reverse_byte_order = (g_ntohs(0x1) != 0x1); + } else { + reverse_byte_order = LTT_GET_BO(e->tracefile); } -#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); + + switch(f->size) { + case 1: + { + guint8 x = *(guint8 *)(e->data + f->offset); + return (guint64) x; + } + break; + case 2: + return (guint64)ltt_get_uint16(reverse_byte_order, e->data + f->offset); + break; + case 4: + return (guint64)ltt_get_uint32(reverse_byte_order, e->data + f->offset); + break; + case 8: + return ltt_get_uint64(reverse_byte_order, e->data + f->offset); + break; + default: + g_critical("ltt_event_get_long_unsigned : field size %i unknown", f->size); + return 0; + break; } -#endif //0 - g_critical("ltt_event_get_unsigned : field size %i unknown", f->field_size); - return 0; } -gint32 ltt_event_get_int(LttEvent *e, LttField *f) +gint64 ltt_event_get_long_int(LttEvent *e, struct marker_field *f) { - gboolean reverse_byte_order = LTT_GET_BO(e->tracefile); - - 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); + gboolean reverse_byte_order; + if(unlikely(f->attributes & LTT_ATTRIBUTE_NETWORK_BYTE_ORDER)) { + reverse_byte_order = (g_ntohs(0x1) != 0x1); + } else { + reverse_byte_order = LTT_GET_BO(e->tracefile); } -#endif //0 - g_critical("ltt_event_get_int : field size %i unknown", f->field_size); - return 0; -} - -guint64 ltt_event_get_long_unsigned(LttEvent *e, LttField *f) -{ - gboolean reverse_byte_order = LTT_GET_BO(e->tracefile); - - LttTypeEnum t = f->field_type.type_class; - - 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); + + switch(f->size) { + case 1: + { + gint8 x = *(gint8 *)(e->data + f->offset); + return (gint64) x; + } + break; + case 2: + return (gint64)ltt_get_int16(reverse_byte_order, e->data + f->offset); + break; + case 4: + return (gint64)ltt_get_int32(reverse_byte_order, e->data + f->offset); + break; + case 8: + return ltt_get_int64(reverse_byte_order, e->data + f->offset); + break; + default: + g_critical("ltt_event_get_long_int : field size %i unknown", f->size); + return 0; + break; } - g_critical("ltt_event_get_long_unsigned : field size %i unknown", f->field_size); - return 0; } -gint64 ltt_event_get_long_int(LttEvent *e, LttField *f) +#if 0 +float ltt_event_get_float(LttEvent *e, struct marker_field *f) { - //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); - - 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); + gboolean reverse_byte_order; + if(unlikely(f->attributes & LTT_ATTRIBUTE_NETWORK_BYTE_ORDER)) { + reverse_byte_order = (g_ntohs(0x1) != 0x1); + } else { + g_assert(LTT_HAS_FLOAT(e->tracefile)); + reverse_byte_order = LTT_GET_FLOAT_BO(e->tracefile); } - g_critical("ltt_event_get_long_int : field size %i unknown", f->field_size); - return 0; -} - -float ltt_event_get_float(LttEvent *e, LttField *f) -{ - g_assert(LTT_HAS_FLOAT(e->tracefile)); - gboolean reverse_byte_order = LTT_GET_FLOAT_BO(e->tracefile); - g_assert(f->field_type.type_class == LTT_FLOAT && f->field_size == 4); + g_assert(f->field_type.type_class == LTT_FLOAT && f->size == 4); - if(reverse_byte_order == 0) return *(float *)(e->data + f->offset_root); + if(reverse_byte_order == 0) return *(float *)(e->data + f->offset); else{ - void *ptr = e->data + f->offset_root; + void *ptr = e->data + f->offset; guint32 value = bswap_32(*(guint32*)ptr); return *(float*)&value; } } -double ltt_event_get_double(LttEvent *e, LttField *f) +double ltt_event_get_double(LttEvent *e, struct marker_field *f) { - g_assert(LTT_HAS_FLOAT(e->tracefile)); - gboolean reverse_byte_order = LTT_GET_FLOAT_BO(e->tracefile); + gboolean reverse_byte_order; + if(unlikely(f->attributes & LTT_ATTRIBUTE_NETWORK_BYTE_ORDER)) { + reverse_byte_order = (g_ntohs(0x1) != 0x1); + } else { + g_assert(LTT_HAS_FLOAT(e->tracefile)); + reverse_byte_order = LTT_GET_FLOAT_BO(e->tracefile); + } - if(f->field_size == 4) + if(f->size == 4) return ltt_event_get_float(e, f); - g_assert(f->field_type.type_class == LTT_FLOAT && f->field_size == 8); + g_assert(f->field_type.type_class == LTT_FLOAT && f->size == 8); - if(reverse_byte_order == 0) return *(double *)(e->data + f->offset_root); + if(reverse_byte_order == 0) return *(double *)(e->data + f->offset); else { - void *ptr = e->data + f->offset_root; + void *ptr = e->data + f->offset; guint64 value = bswap_64(*(guint64*)ptr); return *(double*)&value; } } +#endif /***************************************************************************** * The string obtained is only valid until the next read from * 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)); -} - - -/***************************************************************************** - *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. - ****************************************************************************/ - // TODO -// Change this function so it uses a *to offset value incrementation, just like -// genevent-new instead of returning a size. What is of interest here is the -// offset needed to read each field. -// -// Precomputed ones can be returned directly. Otherwise, the field is flagged -// "VARIABLE OFFSET" and must be computed dynamically. The dynamic processing -// of an offset takes the last known fixed offset, and then dynamically -// calculates all variable field offsets from it. -// -// After a VARIABLE SIZE element, all fields have a variable offset. -// Also, is an array or a sequence has variable length child, we must pass -// through all of them, saving the offsets in the dynamic_offsets array. - -#if 0 -size_t get_field_type_size(LttTracefile *tf, LttEventType *event_type, - off_t offset_root, off_t offset_parent, - LttField *field, void *data) +char *ltt_event_get_string(LttEvent *e, struct marker_field *f) { - size_t size = 0; - guint i; - LttType *type; - off_t align; - - 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; - align = ltt_align(field->offset_root, - size, event_type->facility->alignment); - field->offset_root += align; - field->offset_parent += align; - size += align; - break; - case LTT_SEQUENCE: - { - /* FIXME : check the type of sequence identifier */ - 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; - } + g_assert(f->type == LTT_TYPE_STRING); - return size; + return (gchar*)g_strdup((gchar*)(e->data + f->offset)); } -#endif //0 - - - -/***************************************************************************** - *Function name - * compute_fields_offsets : set the precomputable offset of the fields - *Input params - * fac : facility - * field : the field - * offset : pointer to the current offset, must be incremented - ****************************************************************************/ - - -void compute_fields_offsets(LttTracefile *tf, - LttFacility *fac, LttField *field, off_t *offset, void *root) -{ - LttType *type = &field->field_type; - - switch(type->type_class) { - case LTT_INT_FIXED: - case LTT_UINT_FIXED: - case LTT_POINTER: - case LTT_CHAR: - case LTT_UCHAR: - case LTT_SHORT: - case LTT_USHORT: - case LTT_INT: - case LTT_UINT: - case LTT_LONG: - case LTT_ULONG: - case LTT_SIZE_T: - case LTT_SSIZE_T: - case LTT_OFF_T: - case LTT_FLOAT: - case LTT_ENUM: - if(field->fixed_root == FIELD_VARIABLE) { - /* Align offset on type size */ - *offset += ltt_align(*offset, get_alignment(field), - fac->alignment); - /* remember offset */ - field->offset_root = *offset; - /* Increment offset */ - *offset += field->field_size; - } else { - //g_debug("type before offset : %llu %llu %u\n", *offset, - // field->offset_root, - // field->field_size); - *offset = field->offset_root; - *offset += field->field_size; - //g_debug("type after offset : %llu\n", *offset); - } - break; - case LTT_STRING: - if(field->fixed_root == FIELD_VARIABLE) { - field->offset_root = *offset; - } - *offset += strlen((gchar*)(root+*offset)) + 1; - /* Realign the data */ - *offset += ltt_align(*offset, fac->pointer_size, - fac->alignment); - break; - case LTT_ARRAY: - g_assert(type->fields->len == 1); - { - off_t local_offset; - LttField *child = &g_array_index(type->fields, LttField, 0); - if(field->fixed_root == FIELD_VARIABLE) { - *offset += ltt_align(*offset, get_alignment(field), - fac->alignment); - /* remember offset */ - field->offset_root = *offset; - field->array_offset = *offset; - } - - if(field->field_size != 0) { - /* Increment offset */ - /* field_size is the array size in bytes */ - *offset = field->offset_root + field->field_size; - } else { - guint i; - *offset = field->array_offset; - field->dynamic_offsets = g_array_set_size(field->dynamic_offsets, - 0); - for(i=0; isize; i++) { - g_array_append_val(field->dynamic_offsets, *offset); - compute_fields_offsets(tf, fac, child, offset, root); - } - } - // local_offset = field->array_offset; - // /* Set the offset at position 0 */ - // compute_fields_offsets(tf, fac, child, &local_offset, root); - } - break; - case LTT_SEQUENCE: - g_assert(type->fields->len == 2); - { - off_t local_offset; - LttField *child; - guint i; - guint num_elem; - if(field->fixed_root == FIELD_VARIABLE) { - *offset += ltt_align(*offset, get_alignment(field), - fac->alignment); - /* remember offset */ - field->offset_root = *offset; - - child = &g_array_index(type->fields, LttField, 0); - compute_fields_offsets(tf, fac, child, offset, root); - child = &g_array_index(type->fields, LttField, 1); - *offset += ltt_align(*offset, get_alignment(child), - fac->alignment); - field->array_offset = *offset; - - } else { - child = &g_array_index(type->fields, LttField, 1); - } - *offset = field->array_offset; - field->dynamic_offsets = g_array_set_size(field->dynamic_offsets, - 0); - num_elem = ltt_event_field_element_number(&tf->event, field); - for(i=0; idynamic_offsets, *offset); - compute_fields_offsets(tf, fac, child, offset, root); - } - g_assert(num_elem == field->dynamic_offsets->len); - - /* Realign the data */ - *offset += ltt_align(*offset, fac->pointer_size, - fac->alignment); - - // local_offset = field->array_offset; - // /* Set the offset at position 0 */ - // compute_fields_offsets(tf, fac, child, &local_offset, root); - } - break; - case LTT_STRUCT: - { - LttField *child; - guint i; - gint ret=0; - if(field->fixed_root == FIELD_VARIABLE) { - *offset += ltt_align(*offset, get_alignment(fac, field), - fac->alignment); - /* remember offset */ - field->offset_root = *offset; - } else { - *offset = field->offset_root; - } - for(i=0; ifields->len; i++) { - child = &g_array_index(type->fields, LttField, i); - compute_fields_offsets(tf, fac, child, offset, root); - } - } - break; - case LTT_UNION: - { - LttField *child; - guint i; - gint ret=0; - if(field->fixed_root == FIELD_VARIABLE) { - *offset += ltt_align(*offset, get_alignment(field), - fac->alignment); - /* remember offset */ - field->offset_root = *offset; - } - for(i=0; ifields->len; i++) { - *offset = field->offset_root; - child = &g_array_index(type->fields, LttField, i); - compute_fields_offsets(tf, fac, child, offset, root); - } - *offset = field->offset_root + field->field_size; - } - break; - case LTT_NONE: - default: - g_error("compute_fields_offsets : unknown type"); - } - -} - - -/***************************************************************************** - *Function name - * compute_offsets : set the dynamically computable offsets of an event type - *Input params - * tf : tracefile - * event : event type - * - ****************************************************************************/ -void compute_offsets(LttTracefile *tf, LttFacility *fac, - LttEventType *event, off_t *offset, void *root) -{ - guint i; - - /* compute all variable offsets */ - for(i=0; ifields->len; i++) { - //g_debug("computing offset %u of %u\n", i, event->fields->len-1); - LttField *field = &g_array_index(event->fields, LttField, i); - compute_fields_offsets(tf, fac, field, offset, root); - } - -} -