#define AP_EVENTCODEC_CAP_ENCODER 0x0001
#define AP_EVENTCODEC_CAP_DECODER 0x0002

/**
* AP_EventCodecError
*
* Error codes that can be returned by codec library functions. The
* enumeration values follow the normal UNIX convention of zero == OK and
* non-zero == error.
*/
typedef enum {
 AP_EventCodec_OK = 0, /* Everything is fine */
 AP_EventCodec_InternalError, /* Some unspecified internal error occurred */
 AP_EventCodec_EncodingFailure, /* Couldn't encode an incoming normalised event */
 AP_EventCodec_DecodingFailure, /* Couldn't decode an incoming customer event */
 AP_EventCodec_TransportFailure, /* Trouble sending encoded event to transport */
 AP_EventCodec_MappingFailure, /* Trouble sending decoded event to Semantic Mapper */
 AP_EventCodec_BadProperties /* Codec was passed an invalid property set */
} AP_EventCodecError;

/**
* AP_EventCodecProperty
*
* A single codec property, corresponding to a <property> element in the
* adapter configuration file.
*/
typedef struct {
  AP_char8* name;
  AP_char8* value;
} AP_EventCodecProperty;

/**
* AP_EventCodecProperties
*
* Properties for the codec, extracted from the <codec> element in the
* adapter configuration file.
*/
typedef struct {
  AP_char8* name;
  AP_EventCodecProperty** properties;
} AP_EventCodecProperties;

/**
* AP_EventCodecStatus
*
* Codec status information structure, filled in by the getStatus call.
*/
typedef struct {
  AP_char8* status;
  AP_uint64 totalDecoded;
  AP_uint64 totalEncoded;
  AP_NormalisedEvent* statusDictionary;
} AP_EventCodecStatus;