/*
** Retrieve the current rowid.
*/
static int intarrayRowid(sqlite3_vtab_cursor cur, out sqlite_int64 pRowid)
{
intarray_cursor pCur = (intarray_cursor)cur;
pRowid = pCur.i;
return(SQLITE_OK);
}
/*
** Retrieve the current rowid.
*/
static int schemaRowid(sqlite3_vtab_cursor cur, out sqlite_int64 pRowid)
{
schema_cursor pCur = (schema_cursor)cur;
pRowid = pCur.rowid;
return(SQLITE_OK);
}
/*
** Write data to the file.
*/
static int jrnlWrite(
sqlite3_file pJfd, /* The journal file into which to write */
string zBuf, /* Take data to be written from here */
int iAmt, /* Number of bytes to write */
sqlite_int64 iOfst /* Begin writing at this offset into the file */
)
{
int rc = SQLITE_OK;
JournalFile p = (JournalFile )pJfd;
if (null == p.pReal && (iOfst + iAmt) > p.nBuf)
{
rc = createFile(p);
}
if (rc == SQLITE_OK)
{
if (p.pReal)
{
rc = sqlite3OsWrite(p.pReal, zBuf, iAmt, iOfst);
}
else
{
memcpy(p.zBuf[iOfst], zBuf, iAmt);
if (p.iSize < (iOfst + iAmt))
{
p.iSize = (iOfst + iAmt);
}
}
}
return(rc);
}
/*
** Open a blob handle.
*/
int sqlite3_blob_open(
sqlite3* db, /* The database connection */
string zDb, /* The attached database containing the blob */
string zTable, /* The table containing the blob */
string zColumn, /* The column containing the blob */
sqlite_int64 iRow, /* The row containing the glob */
int flags, /* True -> read/write access, false -> read-only */
sqlite3_blob **ppBlob /* Handle for accessing the blob returned here */
){
int nAttempt = 0;
int iCol; /* Index of zColumn in row-record */
/*
** Open a blob handle.
*/
int sqlite3_blob_open(
sqlite3 *db, /* The database connection */
string zDb, /* The attached database containing the blob */
string zTable, /* The table containing the blob */
string zColumn, /* The column containing the blob */
sqlite_int64 iRow, /* The row containing the glob */
int flags, /* True -> read/write access, false -> read-only */
sqlite3_blob **ppBlob /* Handle for accessing the blob returned here */
)
{
int nAttempt = 0;
int iCol; /* Index of zColumn in row-record */
/*
** Query the size of the file in bytes.
*/
static int jrnlFileSize(sqlite3_file pJfd, sqlite_int64 pSize)
{
int rc = SQLITE_OK;
JournalFile p = (JournalFile )pJfd;
if (p.pReal)
{
rc = sqlite3OsFileSize(p.pReal, pSize);
}
else
{
pSize = (sqlite_int64)p.iSize;
}
return(rc);
}
/*
** Truncate the file.
*/
static int jrnlTruncate(sqlite3_file pJfd, sqlite_int64 size)
{
int rc = SQLITE_OK;
JournalFile p = (JournalFile )pJfd;
if (p.pReal)
{
rc = sqlite3OsTruncate(p.pReal, size);
}
else if (size < p.iSize)
{
p.iSize = size;
}
return(rc);
}
/*
** Read data from the file.
*/
static int jrnlRead(
sqlite3_file *pJfd, /* The journal file from which to read */
void *zBuf, /* Put the results here */
int iAmt, /* Number of bytes to read */
sqlite_int64 iOfst /* Begin reading at this offset */
)
{
int rc = SQLITE_OK;
JournalFile *p = (JournalFile )pJfd;
if (p->pReal)
{
rc = sqlite3OsRead(p->pReal, zBuf, iAmt, iOfst);
}
else if ((iAmt + iOfst) > p->iSize)
{
rc = SQLITE_IOERR_SHORT_READ;
}
else
{
memcpy(zBuf, &p->zBuf[iOfst], iAmt);
}
return(rc);
}
/*
** Truncate an tvfs-file.
*/
static int tvfsTruncate(sqlite3_file pFile, sqlite_int64 size){
int rc = SQLITE_OK;
TestvfsFd pFd = tvfsGetFd(pFile);
Testvfs p = (Testvfs )pFd.pVfs.pAppData;
if ( p.pScript != null && ( p.mask & TESTVFS_TRUNCATE_MASK ) != 0 )
{
tvfsExecTcl(p, "xTruncate",
TCL.Tcl_NewStringObj(pFd.zFilename, -1), pFd.pShmId,null
);
tvfsResultCode(p, ref rc);
}
if( rc==SQLITE_OK ){
rc = sqlite3OsTruncate(pFd.pReal, size);
}
return rc;
}
/*
** Read data from the file.
*/
static int jrnlRead(
sqlite3_file *pJfd, /* The journal file from which to read */
void *zBuf, /* Put the results here */
int iAmt, /* Number of bytes to read */
sqlite_int64 iOfst /* Begin reading at this offset */
){
int rc = SQLITE_OK;
JournalFile *p = (JournalFile )pJfd;
if( p->pReal ){
rc = sqlite3OsRead(p->pReal, zBuf, iAmt, iOfst);
}else if( (iAmt+iOfst)>p->iSize ){
rc = SQLITE_IOERR_SHORT_READ;
}else{
memcpy(zBuf, &p->zBuf[iOfst], iAmt);
}
return rc;
}
/*
** Query the size of the file in bytes.
*/
static int jrnlFileSize(sqlite3_file pJfd, sqlite_int64 pSize){
int rc = SQLITE_OK;
JournalFile p = (JournalFile )pJfd;
if( p.pReal ){
rc = sqlite3OsFileSize(p.pReal, pSize);
}else{
pSize = (sqlite_int64) p.iSize;
}
return rc;
}
/*
** Truncate the file.
*/
static int jrnlTruncate(sqlite3_file pJfd, sqlite_int64 size){
int rc = SQLITE_OK;
JournalFile p = (JournalFile )pJfd;
if( p.pReal ){
rc = sqlite3OsTruncate(p.pReal, size);
}else if( size<p.iSize ){
p.iSize = size;
}
return rc;
}
/*
** Write data to the file.
*/
static int jrnlWrite(
sqlite3_file pJfd, /* The journal file into which to write */
string zBuf, /* Take data to be written from here */
int iAmt, /* Number of bytes to write */
sqlite_int64 iOfst /* Begin writing at this offset into the file */
){
int rc = SQLITE_OK;
JournalFile p = (JournalFile )pJfd;
if( null==p.pReal && (iOfst+iAmt)>p.nBuf ){
rc = createFile(p);
}
if( rc==SQLITE_OK ){
if( p.pReal ){
rc = sqlite3OsWrite(p.pReal, zBuf, iAmt, iOfst);
}else{
memcpy(p.zBuf[iOfst], zBuf, iAmt);
if( p.iSize<(iOfst+iAmt) ){
p.iSize = (iOfst+iAmt);
}
}
}
return rc;
}
/*
** Retrieve the current rowid.
*/
static int intarrayRowid( sqlite3_vtab_cursor cur, out sqlite_int64 pRowid )
{
intarray_cursor pCur = (intarray_cursor)cur;
pRowid = pCur.i;
return SQLITE_OK;
}
static int statRowid( sqlite3_vtab_cursor pCursor, out sqlite_int64 pRowid )
{
StatCursor pCsr = (StatCursor)pCursor;
pRowid = pCsr.iPageno;
return SQLITE_OK;
}
/*
** Retrieve the current rowid.
*/
static int schemaRowid( sqlite3_vtab_cursor cur, out sqlite_int64 pRowid )
{
schema_cursor pCur = (schema_cursor)cur;
pRowid = pCur.rowid;
return SQLITE_OK;
}
/*
** Write data to an tvfs-file.
*/
static int tvfsWrite(
sqlite3_file pFile,
byte[] zBuf,
int iAmt,
sqlite_int64 iOfst
){
int rc = SQLITE_OK;
Debugger.Break();//TODO
//TestvfsFd pFd = tvfsGetFd(pFile);
//Testvfs p = (Testvfs )pFd.pVfs.pAppData;
//if ( p.pScript != null && (p.mask & TESTVFS_WRITE_MASK) != 0 )
//{
// tvfsExecTcl(p, "xWrite",
// TCL.Tcl_NewStringObj(pFd.zFilename, -1), pFd.pShmId, null
// );
// tvfsResultCode(p, ref rc);
//}
//if( rc==SQLITE_OK && tvfsInjectFullerr(p)!=0 ){
// rc = SQLITE_FULL;
//}
//if ( rc == SQLITE_OK && (p.mask & TESTVFS_WRITE_MASK) != 0 && tvfsInjectIoerr( p ) != 0 )
//{
// rc = SQLITE_IOERR;
//}
//if( rc==SQLITE_OK ){
// rc = sqlite3OsWrite(pFd.pReal, zBuf, iAmt, iOfst);
//}
return rc;
}
/*
** Read data from an tvfs-file.
*/
static int tvfsRead(
sqlite3_file pFile,
byte[] zBuf,
int iAmt,
sqlite_int64 iOfst
){
TestvfsFd p = tvfsGetFd(pFile);
return sqlite3OsRead(p.pReal, zBuf, iAmt, iOfst);
}
static int tclvarRowid( sqlite3_vtab_cursor cur, out sqlite_int64 pRowid )
{
pRowid = 0;
return SQLITE_OK;
}
/*
** Return the current file-size of an tvfs-file.
*/
static int tvfsFileSize(sqlite3_file pFile, ref sqlite_int64 pSize){
TestvfsFd p = tvfsGetFd(pFile);
return sqlite3OsFileSize(p.pReal, ref pSize);
}
static int tclvarRowid(sqlite3_vtab_cursor cur, out sqlite_int64 pRowid)
{
pRowid = 0;
return(SQLITE_OK);
}
