...
pbs_db_conn_t: Structure used to maintain the database connection information. All elements of this structure are generic and are not bound to any particular database.
| Code Block |
|---|
struct pbs_db_connection { |
...
void *conn_db_handle; /* opaque database handle */ |
...
char *conn_host; /* host */ |
...
int conn_port; /* port |
...
*/ int conn_timeout; /* connection timeout (async connects) */ |
...
int conn_state; |
...
/* connected? */ int conn_db_state; /* db up? down? starting? (async connects) */ |
...
time_t conn_connect_time; |
...
/* when was connection initiated */ int conn_trx_nest; /* incr/decr with each begin/end trx */ |
...
int conn_trx_rollback; /* rollback flag in case of nested trx */ |
...
int conn_trx_async; /* 1 - async, 0 - sync, one-shot reset */ |
...
void *conn_db_err; /* opaque database error store */ |
...
void *conn_data; /* any other db specific data |
...
*/ } typedef struct pbs_db_connection pbs_db_conn_t; |
pbs_db_obj_info_t: Wrapper object structure. It contains a pointer to one of the several database structures. Most of the database manipulation/query functions take this structure as a parameter. Depending on the contained structure type, an appropriate internal database manipulation/query function is eventually called. This allows keeping the interface simpler and generic.
...