int sqlite3_status(int op, int *pCurrent, int *pHighwater, int resetFlag){
sqlite3_int64 iCur, iHwtr;
int rc;
#ifdef SQLITE_ENABLE_API_ARMOR
if( pCurrent==0 || pHighwater==0 ) return SQLITE_MISUSE_BKPT;
#endif
rc = sqlite3_status64(op, &iCur, &iHwtr, resetFlag);
if( rc==0 ){
*pCurrent = (int)iCur;
*pHighwater = (int)iHwtr;
}
return rc;
}
/*
** Advance a memstat_cursor to its next row of output.
*/
static int memstatNext(sqlite3_vtab_cursor *cur){
memstat_cursor *pCur = (memstat_cursor*)cur;
int i;
assert( pCur->iRowid<=MSV_NROW );
while(1){
i = (int)pCur->iRowid - 1;
if( i<0 || (aMemstatColumn[i].mNull & 2)!=0 || (++pCur->iDb)>=pCur->nDb ){
pCur->iRowid++;
if( pCur->iRowid>MSV_NROW ) return SQLITE_OK; /* End of the table */
pCur->iDb = 0;
i++;
}
pCur->aVal[0] = 0;
pCur->aVal[1] = 0;
switch( aMemstatColumn[i].eType ){
case MSV_GSTAT: {
if( sqlite3_libversion_number()>=3010000 ){
sqlite3_status64(aMemstatColumn[i].eOp,
&pCur->aVal[0], &pCur->aVal[1],0);
}else{
int xCur, xHiwtr;
sqlite3_status(aMemstatColumn[i].eOp, &xCur, &xHiwtr, 0);
pCur->aVal[0] = xCur;
pCur->aVal[1] = xHiwtr;
}
break;
}
case MSV_DB: {
int xCur, xHiwtr;
sqlite3_db_status(pCur->db, aMemstatColumn[i].eOp, &xCur, &xHiwtr, 0);
pCur->aVal[0] = xCur;
pCur->aVal[1] = xHiwtr;
break;
}
case MSV_ZIPVFS: {
int rc;
rc = sqlite3_file_control(pCur->db, pCur->azDb[pCur->iDb],
aMemstatColumn[i].eOp, (void*)&pCur->aVal[0]);
if( rc!=SQLITE_OK ) continue;
break;
}
}
break;
}
return SQLITE_OK;
}
/*
** Return the maximum amount of memory that has ever been
** checked out since either the beginning of this process
** or since the most recent reset.
*/
sqlite3_int64 sqlite3_memory_highwater(int resetFlag){
sqlite3_int64 res, mx;
sqlite3_status64(SQLITE_STATUS_MEMORY_USED, &res, &mx, resetFlag);
return mx;
}
/*
** Return the amount of memory currently checked out.
*/
sqlite3_int64 sqlite3_memory_used(void){
sqlite3_int64 res, mx;
sqlite3_status64(SQLITE_STATUS_MEMORY_USED, &res, &mx, 0);
return res;
}