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Checkpoint a database

Checkpoint a database

int sqlite3_wal_checkpoint_v2(
  sqlite3 *db,                    /* Database handle */
  const char *zDb,                /* Name of attached database (or NULL) */
  int eMode,                      /* SQLITE_CHECKPOINT_* value */
  int *pnLog,                     /* OUT: Size of WAL log in frames */
  int *pnCkpt                     /* OUT: Total number of frames checkpointed */
);

The sqlite3_wal_checkpoint_v2(D,X,M,L,C) interface runs a checkpoint operation on database X of database connection D in mode M. Status information is written back into integers pointed to by L and C. The M parameter must be a valid checkpoint mode:

SQLITE_CHECKPOINT_PASSIVE
Checkpoint as many frames as possible without waiting for any database readers or writers to finish, then sync the database file if all frames in the l