Function SIValue_FromBinary

src/value.c:766–826

reads SIValue off of binary stream

// reads SIValue off of binary stream
SIValue SIValue_FromBinary
(
    FILE *stream  // stream to read value from
) {
	ASSERT(stream != NULL);

	// read value type
	SIType t;
	SIValue v;
	size_t len;  // string length

	bool     b;
	int64_t  i;
	double   d;
	Point    p;
	char    *s;
	struct SIValue *array;

	fread_assert(&t, sizeof(SIType), stream);
	switch(t) {
		case T_POINT:
			// read point from stream
			fread_assert(&p, sizeof(v.point), stream);
			v = SI_Point(p.latitude, p.longitude);
			break;
		case T_ARRAY:
			// read array from stream
			v = SIArray_FromBinary(stream);
			break;
		case T_STRING:
			// read string length from stream
			fread_assert(&len, sizeof(len), stream);
			s = rm_malloc(sizeof(char) * len);
			// read string from stream
			fread_assert(s, sizeof(char) * len, stream);
			v = SI_TransferStringVal(s);
			break;
		case T_BOOL:
			// read bool from stream
			fread_assert(&b, sizeof(b), stream);
			v = SI_BoolVal(b);
			break;
		case T_INT64:
			// read int from stream
			fread_assert(&i, sizeof(i), stream);
			v = SI_LongVal(i);
			break;
		case T_DOUBLE:
			// read double from stream
			fread_assert(&d, sizeof(d), stream);
			v = SI_DoubleVal(d);
			break;
		case T_NULL:
			v = SI_NullVal();
			break;
		default:
			assert(false && "unknown SIValue type");
	}