The following structure holds information for callbacks to the feed handler. Only one callback is listed.
typedef struct {
void (*shutdown)(void);
/* notifies caller of shutdown
request */
} PUB_CALLBACKS;
Initialization Information
The following structure holds information needed by the Publisher for initialization. See the initialization method for an explanation of the members of this class.
typedef struct {
/* directory in which to locate configuration file */
const char * config_dir;
/* directory in which to locate RDS templates */
const char * template_dir;
/* indicates what type of publisher this is */
const char * component_subtype;
/* enables/disables strict checking of messages as they’re being built */
bool strict_check;
/* indicates whether the feed handler has initialized the logger */
bool own_logger;
/* callbacks to the feed handler */
PUB_CALLBACKS callbacks;
} PUB_STARTUP;
Data Message Information
The following structure holds context information about a market data message that is being built to be sent to subscribers.
typedef struct {
/* MESSAGE_DEFN pointer */
void * message_defn;
uint16_t current_field_num;
/* location of destination message buffer */
uchar * dest_buffer;
/* location of next fixed length value */
uchar * current_fixed_data;
/* location of next variable length value */
uchar * current_variable_data
/* length of market data message */
uint16_t message_length;}
PUB_SEND_MESSAGE_CONTEXT;
