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When saving the state of an RBU update in the incremental-checkpoint phase,

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sync the database file. Otherwise, if a power failure occurs and the RBU
update resumed following system recovery, the database may become corrupt.

FossilOrigin-Name: edee6a80e1cc7e6a2b8c3c7f76dd794fc8ab9a72
This commit is contained in:
dan
2017-03-02 14:51:47 +00:00
parent 76adb23980
commit cb1b0a693a
6 changed files with 139 additions and 18 deletions
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17
src/test6.c
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@@ -315,8 +315,9 @@ static int writeListSync(CrashFile *pFile, int isCrash){
assert(pWrite->zBuf);
#ifdef TRACE_CRASHTEST
printf("Trashing %d sectors @ %lld (sector %d) (%s)\n",
1+iLast-iFirst, pWrite->iOffset, iFirst, pWrite->pFile->zName
printf("Trashing %d sectors (%d bytes) @ %lld (sector %d) (%s)\n",
1+iLast-iFirst, (1+iLast-iFirst)*g.iSectorSize,
pWrite->iOffset, iFirst, pWrite->pFile->zName
);
#endif
@@ -827,7 +828,7 @@ static int SQLITE_TCLAPI crashNowCmd(
}
/*
** tclcmd: sqlite_crash_enable ENABLE
** tclcmd: sqlite_crash_enable ENABLE ?DEFAULT?
**
** Parameter ENABLE must be a boolean value. If true, then the "crash"
** vfs is added to the system. If false, it is removed.
@@ -839,6 +840,7 @@ static int SQLITE_TCLAPI crashEnableCmd(
Tcl_Obj *CONST objv[]
){
int isEnable;
int isDefault = 0;
static sqlite3_vfs crashVfs = {
2, /* iVersion */
0, /* szOsFile */
@@ -862,14 +864,17 @@ static int SQLITE_TCLAPI crashEnableCmd(
0, /* xCurrentTimeInt64 */
};
if( objc!=2 ){
Tcl_WrongNumArgs(interp, 1, objv, "ENABLE");
if( objc!=2 && objc!=3 ){
Tcl_WrongNumArgs(interp, 1, objv, "ENABLE ?DEFAULT?");
return TCL_ERROR;
}
if( Tcl_GetBooleanFromObj(interp, objv[1], &isEnable) ){
return TCL_ERROR;
}
if( objc==3 && Tcl_GetBooleanFromObj(interp, objv[2], &isDefault) ){
return TCL_ERROR;
}
if( (isEnable && crashVfs.pAppData) || (!isEnable && !crashVfs.pAppData) ){
return TCL_OK;
@@ -880,7 +885,7 @@ static int SQLITE_TCLAPI crashEnableCmd(
crashVfs.mxPathname = pOriginalVfs->mxPathname;
crashVfs.pAppData = (void *)pOriginalVfs;
crashVfs.szOsFile = sizeof(CrashFile) + pOriginalVfs->szOsFile;
sqlite3_vfs_register(&crashVfs, 0);
sqlite3_vfs_register(&crashVfs, isDefault);
}else{
crashVfs.pAppData = 0;
sqlite3_vfs_unregister(&crashVfs);