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Overview
| Comment: | Add a test for the outcome of a process crash within an xWrite VFS method call. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | batch-atomic-write |
| Files: | files | file ages | folders |
| SHA3-256: |
eb8718006cb23ba9304da5c30d19863d |
| User & Date: | dan 2017-07-22 20:12:31 |
Context
|
2017-07-27
| ||
| 18:34 | Do not set device-capabilities flags SEQUENTIAL or SAFE_APPEND for f2fs file-systems. check-in: 4477e60c user: dan tags: batch-atomic-write | |
|
2017-07-22
| ||
| 20:12 | Add a test for the outcome of a process crash within an xWrite VFS method call. check-in: eb871800 user: dan tags: batch-atomic-write | |
| 16:58 | Add the "atomic-batch-write" permutation to permutations.test. This permutation fails if not run on a file-system that supports atomic-batch-writes. check-in: 9f1b83fa user: dan tags: batch-atomic-write | |
Changes
Changes to src/test6.c.
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{ "atomic8k", SQLITE_IOCAP_ATOMIC8K },
{ "atomic16k", SQLITE_IOCAP_ATOMIC16K },
{ "atomic32k", SQLITE_IOCAP_ATOMIC32K },
{ "atomic64k", SQLITE_IOCAP_ATOMIC64K },
{ "sequential", SQLITE_IOCAP_SEQUENTIAL },
{ "safe_append", SQLITE_IOCAP_SAFE_APPEND },
{ "powersafe_overwrite", SQLITE_IOCAP_POWERSAFE_OVERWRITE },
{ 0, 0 }
};
int i;
int iDc = 0;
int iSectorSize = 0;
int setSectorsize = 0;
................................................................................
if( processDevSymArgs(interp, objc-1, &objv[1], &iDc, &iSectorSize) ){
return TCL_ERROR;
}
devsym_register(iDc, iSectorSize);
return TCL_OK;
}
/*
** tclcmd: unregister_devsim
*/
static int SQLITE_TCLAPI dsUnregisterObjCmd(
void * clientData,
................................................................................
*/
int Sqlitetest6_Init(Tcl_Interp *interp){
#ifndef SQLITE_OMIT_DISKIO
Tcl_CreateObjCommand(interp, "sqlite3_crash_enable", crashEnableCmd, 0, 0);
Tcl_CreateObjCommand(interp, "sqlite3_crashparams", crashParamsObjCmd, 0, 0);
Tcl_CreateObjCommand(interp, "sqlite3_crash_now", crashNowCmd, 0, 0);
Tcl_CreateObjCommand(interp, "sqlite3_simulate_device", devSymObjCmd, 0, 0);
Tcl_CreateObjCommand(interp, "unregister_devsim", dsUnregisterObjCmd, 0, 0);
Tcl_CreateObjCommand(interp, "register_jt_vfs", jtObjCmd, 0, 0);
Tcl_CreateObjCommand(interp, "unregister_jt_vfs", jtUnregisterObjCmd, 0, 0);
#endif
return TCL_OK;
}
#endif /* SQLITE_TEST */
|
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{ "atomic8k", SQLITE_IOCAP_ATOMIC8K },
{ "atomic16k", SQLITE_IOCAP_ATOMIC16K },
{ "atomic32k", SQLITE_IOCAP_ATOMIC32K },
{ "atomic64k", SQLITE_IOCAP_ATOMIC64K },
{ "sequential", SQLITE_IOCAP_SEQUENTIAL },
{ "safe_append", SQLITE_IOCAP_SAFE_APPEND },
{ "powersafe_overwrite", SQLITE_IOCAP_POWERSAFE_OVERWRITE },
{ "batch-atomic", SQLITE_IOCAP_BATCH_ATOMIC },
{ 0, 0 }
};
int i;
int iDc = 0;
int iSectorSize = 0;
int setSectorsize = 0;
................................................................................
if( processDevSymArgs(interp, objc-1, &objv[1], &iDc, &iSectorSize) ){
return TCL_ERROR;
}
devsym_register(iDc, iSectorSize);
return TCL_OK;
}
/*
** tclcmd: sqlite3_crash_on_write N
*/
static int SQLITE_TCLAPI writeCrashObjCmd(
void * clientData,
Tcl_Interp *interp,
int objc,
Tcl_Obj *CONST objv[]
){
void devsym_crash_on_write(int);
int nWrite = 0;
if( objc!=2 ){
Tcl_WrongNumArgs(interp, 1, objv, "NWRITE");
return TCL_ERROR;
}
if( Tcl_GetIntFromObj(interp, objv[1], &nWrite) ){
return TCL_ERROR;
}
devsym_crash_on_write(nWrite);
return TCL_OK;
}
/*
** tclcmd: unregister_devsim
*/
static int SQLITE_TCLAPI dsUnregisterObjCmd(
void * clientData,
................................................................................
*/
int Sqlitetest6_Init(Tcl_Interp *interp){
#ifndef SQLITE_OMIT_DISKIO
Tcl_CreateObjCommand(interp, "sqlite3_crash_enable", crashEnableCmd, 0, 0);
Tcl_CreateObjCommand(interp, "sqlite3_crashparams", crashParamsObjCmd, 0, 0);
Tcl_CreateObjCommand(interp, "sqlite3_crash_now", crashNowCmd, 0, 0);
Tcl_CreateObjCommand(interp, "sqlite3_simulate_device", devSymObjCmd, 0, 0);
Tcl_CreateObjCommand(interp, "sqlite3_crash_on_write", writeCrashObjCmd,0,0);
Tcl_CreateObjCommand(interp, "unregister_devsim", dsUnregisterObjCmd, 0, 0);
Tcl_CreateObjCommand(interp, "register_jt_vfs", jtObjCmd, 0, 0);
Tcl_CreateObjCommand(interp, "unregister_jt_vfs", jtUnregisterObjCmd, 0, 0);
#endif
return TCL_OK;
}
#endif /* SQLITE_TEST */
|
Changes to src/test_devsym.c.
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*/
#define DEVSYM_MAX_PATHNAME 512
/*
** Name used to identify this VFS.
*/
#define DEVSYM_VFS_NAME "devsym"
typedef struct devsym_file devsym_file;
struct devsym_file {
sqlite3_file base;
sqlite3_file *pReal;
};
................................................................................
static void (*devsymDlSym(sqlite3_vfs*,void*, const char *zSymbol))(void);
static void devsymDlClose(sqlite3_vfs*, void*);
#endif /* SQLITE_OMIT_LOAD_EXTENSION */
static int devsymRandomness(sqlite3_vfs*, int nByte, char *zOut);
static int devsymSleep(sqlite3_vfs*, int microseconds);
static int devsymCurrentTime(sqlite3_vfs*, double*);
static sqlite3_vfs devsym_vfs = {
2, /* iVersion */
sizeof(devsym_file), /* szOsFile */
DEVSYM_MAX_PATHNAME, /* mxPathname */
0, /* pNext */
DEVSYM_VFS_NAME, /* zName */
0, /* pAppData */
devsymOpen, /* xOpen */
devsymDelete, /* xDelete */
devsymAccess, /* xAccess */
devsymFullPathname, /* xFullPathname */
#ifndef SQLITE_OMIT_LOAD_EXTENSION
devsymDlOpen, /* xDlOpen */
devsymDlError, /* xDlError */
devsymDlSym, /* xDlSym */
devsymDlClose, /* xDlClose */
#else
0, /* xDlOpen */
0, /* xDlError */
0, /* xDlSym */
0, /* xDlClose */
#endif /* SQLITE_OMIT_LOAD_EXTENSION */
devsymRandomness, /* xRandomness */
devsymSleep, /* xSleep */
devsymCurrentTime, /* xCurrentTime */
0, /* xGetLastError */
0 /* xCurrentTimeInt64 */
};
static sqlite3_io_methods devsym_io_methods = {
2, /* iVersion */
devsymClose, /* xClose */
devsymRead, /* xRead */
devsymWrite, /* xWrite */
devsymTruncate, /* xTruncate */
devsymSync, /* xSync */
devsymFileSize, /* xFileSize */
devsymLock, /* xLock */
devsymUnlock, /* xUnlock */
devsymCheckReservedLock, /* xCheckReservedLock */
devsymFileControl, /* xFileControl */
devsymSectorSize, /* xSectorSize */
devsymDeviceCharacteristics, /* xDeviceCharacteristics */
devsymShmMap, /* xShmMap */
devsymShmLock, /* xShmLock */
devsymShmBarrier, /* xShmBarrier */
devsymShmUnmap /* xShmUnmap */
};
struct DevsymGlobal {
sqlite3_vfs *pVfs;
int iDeviceChar;
int iSectorSize;
};
struct DevsymGlobal g = {0, 0, 512};
/*
** Close an devsym-file.
*/
static int devsymClose(sqlite3_file *pFile){
devsym_file *p = (devsym_file *)pFile;
sqlite3OsClose(p->pReal);
................................................................................
static int devsymOpen(
sqlite3_vfs *pVfs,
const char *zName,
sqlite3_file *pFile,
int flags,
int *pOutFlags
){
int rc;
devsym_file *p = (devsym_file *)pFile;
p->pReal = (sqlite3_file *)&p[1];
rc = sqlite3OsOpen(g.pVfs, zName, p->pReal, flags, pOutFlags);
if( p->pReal->pMethods ){
pFile->pMethods = &devsym_io_methods;
}
................................................................................
/*
** Return the current time as a Julian Day number in *pTimeOut.
*/
static int devsymCurrentTime(sqlite3_vfs *pVfs, double *pTimeOut){
return g.pVfs->xCurrentTime(g.pVfs, pTimeOut);
}
/*
** This procedure registers the devsym vfs with SQLite. If the argument is
** true, the devsym vfs becomes the new default vfs. It is the only publicly
** available function in this file.
*/
void devsym_register(int iDeviceChar, int iSectorSize){
if( g.pVfs==0 ){
g.pVfs = sqlite3_vfs_find(0);
devsym_vfs.szOsFile += g.pVfs->szOsFile;
sqlite3_vfs_register(&devsym_vfs, 0);
}
if( iDeviceChar>=0 ){
g.iDeviceChar = iDeviceChar;
}else{
g.iDeviceChar = 0;
}
if( iSectorSize>=0 ){
................................................................................
void devsym_unregister(){
sqlite3_vfs_unregister(&devsym_vfs);
g.pVfs = 0;
g.iDeviceChar = 0;
g.iSectorSize = 0;
}
#endif
|
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*/ #define DEVSYM_MAX_PATHNAME 512 /* ** Name used to identify this VFS. */ #define DEVSYM_VFS_NAME "devsym" #define WRITECRASH_NAME "writecrash" typedef struct devsym_file devsym_file; struct devsym_file { sqlite3_file base; sqlite3_file *pReal; }; ................................................................................ static void (*devsymDlSym(sqlite3_vfs*,void*, const char *zSymbol))(void); static void devsymDlClose(sqlite3_vfs*, void*); #endif /* SQLITE_OMIT_LOAD_EXTENSION */ static int devsymRandomness(sqlite3_vfs*, int nByte, char *zOut); static int devsymSleep(sqlite3_vfs*, int microseconds); static int devsymCurrentTime(sqlite3_vfs*, double*); struct DevsymGlobal { sqlite3_vfs *pVfs; int iDeviceChar; int iSectorSize; int nWriteCrash; }; struct DevsymGlobal g = {0, 0, 512, 0}; /* ** Close an devsym-file. */ static int devsymClose(sqlite3_file *pFile){ devsym_file *p = (devsym_file *)pFile; sqlite3OsClose(p->pReal); ................................................................................ static int devsymOpen( sqlite3_vfs *pVfs, const char *zName, sqlite3_file *pFile, int flags, int *pOutFlags ){ static sqlite3_io_methods devsym_io_methods = { 2, /* iVersion */ devsymClose, /* xClose */ devsymRead, /* xRead */ devsymWrite, /* xWrite */ devsymTruncate, /* xTruncate */ devsymSync, /* xSync */ devsymFileSize, /* xFileSize */ devsymLock, /* xLock */ devsymUnlock, /* xUnlock */ devsymCheckReservedLock, /* xCheckReservedLock */ devsymFileControl, /* xFileControl */ devsymSectorSize, /* xSectorSize */ devsymDeviceCharacteristics, /* xDeviceCharacteristics */ devsymShmMap, /* xShmMap */ devsymShmLock, /* xShmLock */ devsymShmBarrier, /* xShmBarrier */ devsymShmUnmap /* xShmUnmap */ }; int rc; devsym_file *p = (devsym_file *)pFile; p->pReal = (sqlite3_file *)&p[1]; rc = sqlite3OsOpen(g.pVfs, zName, p->pReal, flags, pOutFlags); if( p->pReal->pMethods ){ pFile->pMethods = &devsym_io_methods; } ................................................................................ /* ** Return the current time as a Julian Day number in *pTimeOut. */ static int devsymCurrentTime(sqlite3_vfs *pVfs, double *pTimeOut){ return g.pVfs->xCurrentTime(g.pVfs, pTimeOut); } /* ** Return the sector-size in bytes for an writecrash-file. */ static int writecrashSectorSize(sqlite3_file *pFile){ devsym_file *p = (devsym_file *)pFile; return sqlite3OsSectorSize(p->pReal); } /* ** Return the device characteristic flags supported by an writecrash-file. */ static int writecrashDeviceCharacteristics(sqlite3_file *pFile){ devsym_file *p = (devsym_file *)pFile; return sqlite3OsDeviceCharacteristics(p->pReal); } /* ** Write data to an writecrash-file. */ static int writecrashWrite( sqlite3_file *pFile, const void *zBuf, int iAmt, sqlite_int64 iOfst ){ devsym_file *p = (devsym_file *)pFile; if( g.nWriteCrash>0 ){ g.nWriteCrash--; if( g.nWriteCrash==0 ) abort(); } return sqlite3OsWrite(p->pReal, zBuf, iAmt, iOfst); } /* ** Open an writecrash file handle. */ static int writecrashOpen( sqlite3_vfs *pVfs, const char *zName, sqlite3_file *pFile, int flags, int *pOutFlags ){ static sqlite3_io_methods writecrash_io_methods = { 2, /* iVersion */ devsymClose, /* xClose */ devsymRead, /* xRead */ writecrashWrite, /* xWrite */ devsymTruncate, /* xTruncate */ devsymSync, /* xSync */ devsymFileSize, /* xFileSize */ devsymLock, /* xLock */ devsymUnlock, /* xUnlock */ devsymCheckReservedLock, /* xCheckReservedLock */ devsymFileControl, /* xFileControl */ writecrashSectorSize, /* xSectorSize */ writecrashDeviceCharacteristics, /* xDeviceCharacteristics */ devsymShmMap, /* xShmMap */ devsymShmLock, /* xShmLock */ devsymShmBarrier, /* xShmBarrier */ devsymShmUnmap /* xShmUnmap */ }; int rc; devsym_file *p = (devsym_file *)pFile; p->pReal = (sqlite3_file *)&p[1]; rc = sqlite3OsOpen(g.pVfs, zName, p->pReal, flags, pOutFlags); if( p->pReal->pMethods ){ pFile->pMethods = &writecrash_io_methods; } return rc; } static sqlite3_vfs devsym_vfs = { 2, /* iVersion */ sizeof(devsym_file), /* szOsFile */ DEVSYM_MAX_PATHNAME, /* mxPathname */ 0, /* pNext */ DEVSYM_VFS_NAME, /* zName */ 0, /* pAppData */ devsymOpen, /* xOpen */ devsymDelete, /* xDelete */ devsymAccess, /* xAccess */ devsymFullPathname, /* xFullPathname */ #ifndef SQLITE_OMIT_LOAD_EXTENSION devsymDlOpen, /* xDlOpen */ devsymDlError, /* xDlError */ devsymDlSym, /* xDlSym */ devsymDlClose, /* xDlClose */ #else 0, /* xDlOpen */ 0, /* xDlError */ 0, /* xDlSym */ 0, /* xDlClose */ #endif /* SQLITE_OMIT_LOAD_EXTENSION */ devsymRandomness, /* xRandomness */ devsymSleep, /* xSleep */ devsymCurrentTime, /* xCurrentTime */ 0, /* xGetLastError */ 0 /* xCurrentTimeInt64 */ }; static sqlite3_vfs writecrash_vfs = { 2, /* iVersion */ sizeof(devsym_file), /* szOsFile */ DEVSYM_MAX_PATHNAME, /* mxPathname */ 0, /* pNext */ WRITECRASH_NAME, /* zName */ 0, /* pAppData */ writecrashOpen, /* xOpen */ devsymDelete, /* xDelete */ devsymAccess, /* xAccess */ devsymFullPathname, /* xFullPathname */ #ifndef SQLITE_OMIT_LOAD_EXTENSION devsymDlOpen, /* xDlOpen */ devsymDlError, /* xDlError */ devsymDlSym, /* xDlSym */ devsymDlClose, /* xDlClose */ #else 0, /* xDlOpen */ 0, /* xDlError */ 0, /* xDlSym */ 0, /* xDlClose */ #endif /* SQLITE_OMIT_LOAD_EXTENSION */ devsymRandomness, /* xRandomness */ devsymSleep, /* xSleep */ devsymCurrentTime, /* xCurrentTime */ 0, /* xGetLastError */ 0 /* xCurrentTimeInt64 */ }; /* ** This procedure registers the devsym vfs with SQLite. If the argument is ** true, the devsym vfs becomes the new default vfs. It is the only publicly ** available function in this file. */ void devsym_register(int iDeviceChar, int iSectorSize){ if( g.pVfs==0 ){ g.pVfs = sqlite3_vfs_find(0); devsym_vfs.szOsFile += g.pVfs->szOsFile; writecrash_vfs.szOsFile += g.pVfs->szOsFile; sqlite3_vfs_register(&devsym_vfs, 0); sqlite3_vfs_register(&writecrash_vfs, 0); } if( iDeviceChar>=0 ){ g.iDeviceChar = iDeviceChar; }else{ g.iDeviceChar = 0; } if( iSectorSize>=0 ){ ................................................................................ void devsym_unregister(){ sqlite3_vfs_unregister(&devsym_vfs); g.pVfs = 0; g.iDeviceChar = 0; g.iSectorSize = 0; } void devsym_crash_on_write(int nWrite){ if( g.pVfs==0 ){ g.pVfs = sqlite3_vfs_find(0); devsym_vfs.szOsFile += g.pVfs->szOsFile; writecrash_vfs.szOsFile += g.pVfs->szOsFile; sqlite3_vfs_register(&devsym_vfs, 0); sqlite3_vfs_register(&writecrash_vfs, 0); } g.nWriteCrash = nWrite; } #endif |
Changes to test/tester.tcl.
1586 1587 1588 1589 1590 1591 1592 1593 1594 1595 1596 1597 1598 1599 |
puts $f $tclbody
}
if {[string length $sql]>0} {
puts $f "db eval {"
puts $f "$sql"
puts $f "}"
}
close $f
set r [catch {
exec [info nameofexec] crash.tcl >@stdout
} msg]
# Windows/ActiveState TCL returns a slightly different
# error message. We map that to the expected message
|
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puts $f $tclbody
}
if {[string length $sql]>0} {
puts $f "db eval {"
puts $f "$sql"
puts $f "}"
}
close $f
set r [catch {
exec [info nameofexec] crash.tcl >@stdout
} msg]
# Windows/ActiveState TCL returns a slightly different
# error message. We map that to the expected message
# so that we don't have to change all of the test
# cases.
if {$::tcl_platform(platform)=="windows"} {
if {$msg=="child killed: unknown signal"} {
set msg "child process exited abnormally"
}
}
lappend r $msg
}
# crash_on_write ?-devchar DEVCHAR? CRASHDELAY SQL
#
proc crash_on_write {args} {
set nArg [llength $args]
if {$nArg<2 || $nArg%2} {
error "bad args: $args"
}
set zSql [lindex $args end]
set nDelay [lindex $args end-1]
set devchar {}
for {set ii 0} {$ii < $nArg-2} {incr ii 2} {
set opt [lindex $args $ii]
switch -- [lindex $args $ii] {
-devchar {
set devchar [lindex $args [expr $ii+1]]
}
default { error "unrecognized option: $opt" }
}
}
set f [open crash.tcl w]
puts $f "sqlite3_crash_on_write $nDelay"
puts $f "sqlite3_test_control_pending_byte $::sqlite_pending_byte"
puts $f "sqlite3 db test.db -vfs writecrash"
puts $f "db eval {$zSql}"
puts $f "set {} {}"
close $f
set r [catch {
exec [info nameofexec] crash.tcl >@stdout
} msg]
# Windows/ActiveState TCL returns a slightly different
# error message. We map that to the expected message
|
Added test/writecrash.test.
> > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > |
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# 2009 January 8 # # The author disclaims copyright to this source code. In place of # a legal notice, here is a blessing: # # May you do good and not evil. # May you find forgiveness for yourself and forgive others. # May you share freely, never taking more than you give. # #*********************************************************************** # # Test the outcome of a writer crashing within a call to the VFS # xWrite function. # set testdir [file dirname $argv0] source $testdir/tester.tcl set testprefix writecrash do_not_use_codec do_execsql_test 1.0 { CREATE TABLE t1(a INTEGER PRIMARY KEY, b BLOB UNIQUE); WITH s(i) AS ( VALUES(1) UNION ALL SELECT i+1 FROM s WHERE i<100 ) INSERT INTO t1 SELECT NULL, randomblob(900) FROM s; } {} set bGo 1 for {set tn 1} {$bGo} {incr tn} { db close sqlite3 db test.db do_test 1.$tn.1 { set res [crash_on_write $tn { UPDATE t1 SET b = randomblob(899) WHERE (a%3)==0 }] set bGo 0 if {[string match {1 {child killed:*}} $res]} { set res {0 {}} set bGo 1 } set res } {0 {}} #db close #sqlite3 db test.db do_execsql_test 1.$tn.2 { PRAGMA integrity_check } {ok} db close sqlite3 db test.db do_execsql_test 1.$tn.3 { PRAGMA integrity_check } {ok} } finish_test |