The format of the name of each decode function generated is as follows:
asn1JsonDec_[<prefix>]<prodName>
where <prodName>
is the name of the ASN.1
production for which the function is being generated and
<prefix>
is an optional prefix that can be
set via a configuration file setting. The configuration setting used
to set the prefix is the <typePrefix> element. This element
specifies a prefix that will be applied to all generated typedef
names and function names for the production.
The calling sequence for each decode function is as follows:
status = asn1JsonDec_<name> (OSCTXT* pctxt, <name> *pvalue);
In this definition, <name> denotes the prefixed production name defined above.
The pctxt
argument is used to hold a context pointer
to keep track of decode parameters. This is a basic "handle"
variable that is used to make the function reentrant so it can be
used in an asynchronous or threaded application. The user is
required to supply a pointer to a variable of this type declared
somewhere in his or her program. The variable must be initialized
using the rtInitContext
run-time function before
use.
The pvalue
argument is a pointer to a variable of
the generated type that will receive the decoded data.
The function result variable status
returns the
status of the decode operation. The return status will be greater
than or equal to zero if decoding is successful or negative if an
error occurs. Return status values are defined in the "asn1type.h"
include file.