1538 struct sqlite3 {  struct
1539   sqlite3_vfs *pVfs;            /* OS Interface */  argument
1542   sqlite3_mutex *mutex;         /* Connection mutex */  argument
1550   unsigned int openFlags;       /* Flags passed to sqlite3_vfs.xOpen() */  argument
1571   i64 nChange;                  /* Value returned by sqlite3_changes() */  argument
1572   i64 nTotalChange;             /* Value returned by sqlite3_total_changes() */  argument
1575   struct sqlite3InitInfo {      /* Information used during initialization */  argument
1583   } init;
1584   int nVdbeActive;              /* Number of VDBEs currently running */
1585   int nVdbeRead;                /* Number of active VDBEs that read or write */
1586   int nVdbeWrite;               /* Number of active VDBEs that read and write */
1587   int nVdbeExec;                /* Number of nested calls to VdbeExec() */
1588   int nVDestroy;                /* Number of active OP_VDestroy operations */
1612   void (*xPreUpdateCallback)(   /* Registered using sqlite3_preupdate_hook() */  argument
1613     void*,sqlite3*,int,char const*,char const*,sqlite3_int64,sqlite3_int64  argument
1618   int (*xWalCallback)(void *, sqlite3 *, const char *, int);  argument
1621   void(*xCollNeeded)(void*,sqlite3*,int eTextRep,const char*);  argument
1622   void(*xCollNeeded16)(void*,sqlite3*,int eTextRep,const void*);  argument
1624   sqlite3_value *pErr;          /* Most recent error message */  argument
1626     volatile int isInterrupted; /* True if sqlite3_interrupt has been called */  argument
1631   sqlite3_xauth xAuth;          /* Access authorization function */  argument
1641   Hash aModule;                 /* populated by sqlite3_create_module() */  argument
1644   VTable *pDisconnect;          /* Disconnect these in next sqlite3_prepare() */  argument
1660   ** mutex, not by sqlite3.mutex. They are used by code in notify.c.  argument
1669   sqlite3 *pBlockingConnection; /* Connection that caused SQLITE_LOCKED */  argument
1670   sqlite3 *pUnlockConnection;           /* Connection to watch for unlock */  argument
1673   sqlite3 *pNextBlocked;        /* Next in list of all blocked connections */  argument
1676   sqlite3_userauth auth;        /* User authentication information */  argument