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https://github.com/nasa/trick.git
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7e542440d1
Added a time variable that is in seconds. A created a special case
for var_add if you add "time" then this variable will be added to
the list of variables returned.
trick.var_add("time")
refs #151
69 lines
2.4 KiB
C++
69 lines
2.4 KiB
C++
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#include <stdlib.h>
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#include <iostream>
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#include "trick/VariableServer.hh"
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#include "trick/memorymanager_c_intf.h"
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#include "trick/wcs_ext.h"
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#include "trick/message_proto.h"
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#include "trick/message_type.h"
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Trick::VariableReference::VariableReference(REF2 * in_ref ) {
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int k ;
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// VariableReference copy setup: set address & size to copy into buffer
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conversion_factor = new UCFn(in_ref->attr->units, in_ref->attr->units, 1.0 , 0.0) ;
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ref = in_ref ;
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address = ref->address ;
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size = ref->attr->size ;
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// char* and wchar* in Trick 7 have a type of string and wstring, respectively
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// but in Trick 10 they are type char and wchar (probably John Penn's fault),
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// so we need to keep track that they are really string and wstring
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string_type = ref->attr->type ;
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need_deref = false ;
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if ( ref->num_index == ref->attr->num_index ) {
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// single value
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} else if ( ref->attr->index[ref->attr->num_index - 1].size != 0 ) {
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// fixed array
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for ( k = ref->attr->num_index-1; k > ref->num_index-1 ; k-- ) {
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size *= ref->attr->index[k].size ;
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}
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} else {
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// arrays with pointers
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if ((ref->attr->num_index - ref->num_index) > 1 ) {
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// you cannot request more than one dimension because they are not contiguous
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message_publish(MSG_ERROR, "Variable Server Error: var_add(%s) requests more than one dimension of dynamic array.\n", ref->reference);
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message_publish(MSG_ERROR, "Data is not contiguous so returned values are unpredictable.\n") ;
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}
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if ( ref->attr->type == TRICK_CHARACTER ) {
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// treat char* like a c++ string (see below)
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string_type = TRICK_STRING ;
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need_deref = true;
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} else if ( ref->attr->type == TRICK_WCHAR ) {
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// treat wchar_t* like a wstring (see below)
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string_type = TRICK_WSTRING ;
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} else {
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need_deref = true ;
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size *= get_size((char*)address) ;
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}
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}
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// handle strings: set a max buffer size, the copy size may vary so will be set in copy_sim_data
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if (( string_type == TRICK_STRING ) || ( string_type == TRICK_WSTRING )) {
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size = MAX_ARRAY_LENGTH ;
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}
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buffer_in = calloc( size, 1 ) ;
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buffer_out = calloc( size, 1 ) ;
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}
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Trick::VariableReference::~VariableReference() {
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free(ref) ;
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free(buffer_in) ;
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free(buffer_out) ;
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}
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