void grib_buffer_replace( grib_accessor *a, const unsigned char* data,
size_t newsize,int update_lengths,int update_paddings)
{
size_t offset = a->offset;
long oldsize = grib_get_next_position_offset(a)-offset;
long increase = (long)newsize - (long)oldsize;
grib_buffer *buffer = grib_handle_of_accessor(a)->buffer;
size_t message_length = buffer->ulength;
grib_context_log(a->context,GRIB_LOG_DEBUG,
"grib_buffer_replace %s offset=%ld oldsize=%ld newsize=%ld message_length=%ld update_paddings=%d",
a->name,(long)offset,oldsize,(long)newsize,(long)message_length,update_paddings);
grib_buffer_set_ulength(a->context,
buffer,
buffer->ulength+increase);
/* move the end */
if(increase)
memmove(
buffer->data + offset + newsize,
buffer->data + offset + oldsize,
message_length - offset - oldsize);
/* copy new data */
DebugAssert( buffer->data + offset );
DebugAssert( data || (newsize==0) );/* if data==NULL then newsize must be 0 */
if (data) {
/* Note: memcpy behaviour is undefined if either dest or src is NULL */
memcpy(buffer->data + offset, data, newsize);
}
if(increase)
{
update_offsets_after(a,increase);
if(update_lengths)
{
grib_update_size(a,newsize);
grib_section_adjust_sizes(grib_handle_of_accessor(a)->root,1,0);
if(update_paddings)
grib_update_paddings(grib_handle_of_accessor(a)->root);
}
}
}
void grib_update_sections_lengths(grib_handle* h)
{
grib_section_adjust_sizes(h->root,2,0);
grib_update_paddings(h->root);
}
static int notify_change(grib_action* act, grib_accessor * notified,
grib_accessor* changed)
{
grib_loader loader = { 0,};
grib_section *old_section = NULL;
grib_handle *h = notified->parent->h;
size_t len = 0;
size_t size = 0;
int err=0;
grib_handle* tmp_handle;
int doit = 0;
grib_action* la = NULL;
grib_context_log(h->context,
GRIB_LOG_DEBUG,"------------- SECTION action %s (%s) is triggerred by [%s]",
act->name, notified->name, changed->name);
la = grib_action_reparse(act,notified,&doit);
old_section = notified->sub_section;
Assert(old_section);
Assert(old_section->h == h);
/* printf("old = %p\n",(void*)old_section->branch); */
/* printf("new = %p\n",(void*)la); */
grib_context_log(h->context,
GRIB_LOG_DEBUG,"------------- DOIT %ld OLD %p NEW %p",
doit,old_section->branch,la);
if(!doit) {
if(la != NULL || old_section->branch != NULL)
if(la == old_section->branch)
{
grib_context_log(h->context,GRIB_LOG_DEBUG,"IGNORING TRIGGER action %s (%s) is triggerred %p", act->name, notified->name
,(void*)la);
return GRIB_SUCCESS;
}
}
loader.list_is_resized = (la == old_section->branch);
if (!strcmp(changed->name,"GRIBEditionNumber")) loader.changing_edition=1;
else loader.changing_edition=0;
old_section->branch = la;
tmp_handle = grib_new_handle(h->context);
if(!tmp_handle)
return GRIB_OUT_OF_MEMORY;
tmp_handle->buffer = grib_create_growable_buffer(h->context);
Assert(tmp_handle->buffer); /* FIXME */
loader.data = h;
loader.lookup_long = grib_lookup_long_from_handle;
loader.init_accessor = grib_init_accessor_from_handle;
Assert(h->kid == NULL);
tmp_handle->loader = &loader;
tmp_handle->main = h;
h->kid = tmp_handle;
/* printf("tmp_handle- main %p %p\n",(void*)tmp_handle,(void*)h); */
grib_context_log(h->context,GRIB_LOG_DEBUG,"------------- CREATE TMP BLOCK ", act->name, notified->name);
tmp_handle->root = grib_section_create(tmp_handle,NULL);
tmp_handle->use_trie=1;
err=grib_create_accessor(tmp_handle->root, act, &loader);
grib_section_adjust_sizes(tmp_handle->root,1,0);
grib_section_post_init(tmp_handle->root);
/* grib_recompute_sections_lengths(tmp_handle->root); */
grib_get_block_length(tmp_handle->root,&len);
grib_context_log(h->context,GRIB_LOG_DEBUG,"------------- TMP BLOCK IS sectlen=%d buffer=%d", len, tmp_handle->buffer->ulength);
#if 0
if(h->context->debug > 10)
grib_dump_content(tmp_handle,stdout,NULL,0,NULL);
#endif
/* Assert(tmp_handle->buffer->ulength == len); */
/* grib_empty_section(h->context,old_section); */
grib_buffer_replace(notified, tmp_handle->buffer->data, tmp_handle->buffer->ulength,0,1);
grib_swap_sections(old_section,
tmp_handle->root->block->first->sub_section);
Assert(tmp_handle->dependencies == NULL);
/* printf("grib_handle_delete %p\n",(void*)tmp_handle); */
grib_handle_delete(tmp_handle);
h->use_trie = 1;
h->trie_invalid=1;
h->kid = NULL;
grib_section_adjust_sizes(h->root,1,0);
grib_section_post_init(h->root);
grib_get_block_length(old_section,&size);
grib_context_log(h->context,GRIB_LOG_DEBUG,"------------- BLOCK SIZE %ld, buffer len=%ld", size,len);
if(h->context->debug > 10)
grib_dump_content(h,stdout,"debug",~0,NULL);
Assert(size == len);
grib_update_paddings(old_section);
return err;
}
