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Overview
| Comment: | Fix the appendvfs so that it leaves sqlite3_file->pMethods as NULL if it fails to open. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | appendvfs |
| Files: | files | file ages | folders |
| SHA3-256: | 46b341e3ad11b807ae50f001b970299d |
| User & Date: | drh 2018-01-06 13:33:21 |
Context
|
2018-01-06
| ||
| 13:42 | Add the appendvfs extension and code for the sqltclsh.exe executable. check-in: b0a43e32 user: drh tags: trunk | |
| 13:33 | Fix the appendvfs so that it leaves sqlite3_file->pMethods as NULL if it fails to open. Closed-Leaf check-in: 46b341e3 user: drh tags: appendvfs | |
| 04:34 | Add sqltclsh.exe to the windows makefile. check-in: a6d5c7c2 user: drh tags: appendvfs | |
Changes
Changes to ext/misc/appendvfs.c.
436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 |
sqlite3_int64 sz;
pSubVfs = ORIGVFS(pVfs);
if( (flags & SQLITE_OPEN_MAIN_DB)==0 ){
return pSubVfs->xOpen(pSubVfs, zName, pFile, flags, pOutFlags);
}
p = (ApndFile*)pFile;
memset(p, 0, sizeof(*p));
p->base.pMethods = &apnd_io_methods;
pSubFile = ORIGFILE(pFile);
rc = pSubVfs->xOpen(pSubVfs, zName, pSubFile, flags, pOutFlags);
if( rc ) return rc;
rc = pSubFile->pMethods->xFileSize(pSubFile, &sz);
if( rc ){
pSubFile->pMethods->xClose(pSubFile);
return rc;
}
if( apndIsOrdinaryDatabaseFile(sz, pSubFile) ){
memmove(pFile, pSubFile, pSubVfs->szOsFile);
return SQLITE_OK;
}
p->iMark = 0;
p->iPgOne = apndReadMark(sz, pFile);
if( p->iPgOne>0 ){
return SQLITE_OK;
}
if( (flags & SQLITE_OPEN_CREATE)==0 ){
pSubFile->pMethods->xClose(pSubFile);
pFile->pMethods = 0;
return SQLITE_CANTOPEN;
}
p->iPgOne = (sz+0xfff) & ~(sqlite3_int64)0xfff;
return SQLITE_OK;
}
/*
** All other VFS methods are pass-thrus.
*/
static int apndDelete(sqlite3_vfs *pVfs, const char *zPath, int dirSync){
return ORIGVFS(pVfs)->xDelete(ORIGVFS(pVfs), zPath, dirSync);
|
< > | | < | > > | |
436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 |
sqlite3_int64 sz;
pSubVfs = ORIGVFS(pVfs);
if( (flags & SQLITE_OPEN_MAIN_DB)==0 ){
return pSubVfs->xOpen(pSubVfs, zName, pFile, flags, pOutFlags);
}
p = (ApndFile*)pFile;
memset(p, 0, sizeof(*p));
pSubFile = ORIGFILE(pFile);
p->base.pMethods = &apnd_io_methods;
rc = pSubVfs->xOpen(pSubVfs, zName, pSubFile, flags, pOutFlags);
if( rc ) goto apnd_open_done;
rc = pSubFile->pMethods->xFileSize(pSubFile, &sz);
if( rc ){
pSubFile->pMethods->xClose(pSubFile);
goto apnd_open_done;
}
if( apndIsOrdinaryDatabaseFile(sz, pSubFile) ){
memmove(pFile, pSubFile, pSubVfs->szOsFile);
return SQLITE_OK;
}
p->iMark = 0;
p->iPgOne = apndReadMark(sz, pFile);
if( p->iPgOne>0 ){
return SQLITE_OK;
}
if( (flags & SQLITE_OPEN_CREATE)==0 ){
pSubFile->pMethods->xClose(pSubFile);
rc = SQLITE_CANTOPEN;
}
p->iPgOne = (sz+0xfff) & ~(sqlite3_int64)0xfff;
apnd_open_done:
if( rc ) pFile->pMethods = 0;
return rc;
}
/*
** All other VFS methods are pass-thrus.
*/
static int apndDelete(sqlite3_vfs *pVfs, const char *zPath, int dirSync){
return ORIGVFS(pVfs)->xDelete(ORIGVFS(pVfs), zPath, dirSync);
|
Changes to tool/sqltclsh.tcl.
1 2 3 4 5 6 7 8 9 10 11 |
# Try to open the executable as a database and read the "scripts.data"
# field where "scripts.name" is 'main.tcl'
#
catch {
sqlite3 db $argv0 -vfs apndvfs -create 0
set mainscript [db one {SELECT data FROM scripts WHERE name='main.tcl'}]
}
if {[info exists mainscript]} {
eval $mainscript
return
} else {
|
> > > |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 |
# Try to open the executable as a database and read the "scripts.data"
# field where "scripts.name" is 'main.tcl'
#
catch {
if {![file exists $argv0] && [file exists $argv0.exe]} {
append argv0 .exe
}
sqlite3 db $argv0 -vfs apndvfs -create 0
set mainscript [db one {SELECT data FROM scripts WHERE name='main.tcl'}]
}
if {[info exists mainscript]} {
eval $mainscript
return
} else {
|