Example

The following example illustrates the complete workflow of the Binlog API. It configures the connection by setting the required session variables, initializes and prepares the replication handle, retrieves all available events, processes each event type appropriately, and performs proper cleanup at the end.

#include <mysql.h>
#include <mariadb_rpl.h>

static int read_events(MYSQL *mysql)
{
  MARIADB_RPL_EVENT *event= NULL;
  MARIADB_RPL *rpl= mariadb_rpl_init(mysql);

  mysql_query(mysql, "SET @mariadb_slave_capability=4");
  mysql_query(mysql, "SET @slave_gtid_strict_mode=1");
  mysql_query(mysql, "SET @slave_gtid_ignore_duplicates=1");
  mysql_query(mysql, "SET NAMES utf8");
  mysql_query(mysql, "SET @master_binlog_checksum= @@global.binlog_checksum");

  mariadb_rpl_optionsv(rpl, MARIADB_RPL_SERVER_ID, 12);
  mariadb_rpl_optionsv(rpl, MARIADB_RPL_START, 4);
  mariadb_rpl_optionsv(rpl, MARIADB_RPL_FLAGS, MARIADB_RPL_BINLOG_SEND_ANNOTATE_ROWS)

  if (mariadb_rpl_open(rpl))
    return FAIL;

  while((event= mariadb_rpl_fetch(rpl, event)))
  {
    /* process events */
    switch(event->event_type) {
      case BINLOG_CHECKPOINT_EVENT:
        ....
        break;
      case FORMAT_DESCRIPTION_EVENT:
        ...
        break;
      ....
      default:
        printf("Unknown event: %d", event->event_type);
        break;
    }
  }
  mariadb_free_rpl_event(event);
  mariadb_rpl_close(rpl);
  return OK;
}