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// Copyright (C) 1999-2018
// Smithsonian Astrophysical Observatory, Cambridge, MA, USA
// For conditions of distribution and use, see copyright notice in "copyright"
#include <tcl.h>
#include "var.h"
FitsVar::FitsVar(Tcl_Interp* interp, const char* var, const char* fn)
{
parse(fn);
if (!valid_)
return;
// reset
valid_ =0;
obj = Tcl_GetVar2Ex(interp, (char*)var, NULL,
TCL_GLOBAL_ONLY | TCL_LEAVE_ERR_MSG);
if (!obj)
return;
// just in case
Tcl_ConvertToType(interp, obj, Tcl_GetObjType("bytearray"));
typedef struct ByteArray {
int used; /* The number of bytes used in the byte
* array. */
int allocated; /* The amount of space actually allocated
* minus 1 byte. */
unsigned char bytes[4]; /* The array of bytes. The actual size of
* this field depends on the 'allocated' field
* above. */
} ByteArray;
ByteArray* ba = (ByteArray*)(obj->internalRep.otherValuePtr);
mapsize_ = ba->used;
mapdata_ = (char*)ba->bytes;
Tcl_IncrRefCount(obj);
// so far, so good
valid_ = 1;
}
FitsVar::~FitsVar()
{
if (obj)
Tcl_DecrRefCount(obj);
}
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