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Comment:Add tests for the RBU module.
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SHA3-256: a194e53670e25a48c2bb51b54755abff88ed6ae2596c5858fb4aac16cb452bdf
User & Date: dan 2019-05-10 20:44:10
Context
2019-05-11
13:04
Do not assume that "x IS NOT ?" implies "x NOT NULL" when considering partial indexes. Fix for ticket [8025674847]. check-in: 0ba6d709 user: dan tags: trunk
2019-05-10
20:44
Add tests for the RBU module. check-in: a194e536 user: dan tags: trunk
17:54
Fix harmless compiler warnings. check-in: 956ca2a4 user: drh tags: trunk
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Changes to ext/rbu/rbufault2.test. 

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      {1 SQLITE_CONSTRAINT} \
      {1 SQLITE_NOMEM} \
      {1 {SQLITE_NOMEM - unable to open a temporary database file for storing temporary tables}} \
      {1 {SQLITE_NOMEM - out of memory}} 
}













finish_test








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      {1 SQLITE_CONSTRAINT} \
      {1 SQLITE_NOMEM} \
      {1 {SQLITE_NOMEM - unable to open a temporary database file for storing temporary tables}} \
      {1 {SQLITE_NOMEM - out of memory}} 
}


sqlite3rbu_create_vfs -default rbu ""
sqlite3 db test.db
set ::vfsname [file_control_vfsname db]
do_faultsim_test 2 -faults oom* -prep {
} -body {
  file_control_vfsname db
} 
db close
sqlite3rbu_destroy_vfs rbu


finish_test

Changes to ext/rbu/rbumisc.test. 

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set ::testprefix rbumisc

db close
sqlite3_shutdown
sqlite3_config_uri 1
reset_db

#-------------------------------------------------------------------------
# Ensure that RBU is not confused by oddly named tables in an RBU 
# database.
#
do_execsql_test 1.0 {
  CREATE TABLE x1(a, b, c INTEGER PRIMARY KEY);
}
do_test 1.1 {

  forcedelete rbu.db
  sqlite3 rbu rbu.db
  rbu eval {
    CREATE TABLE data_x1(a, b, c, rbu_control);
    INSERT INTO data_x1 VALUES(1, 1, 1, 0);
    INSERT INTO data_x1 VALUES(2, 2, 2, 0);

................................................................................

    INSERT INTO "data x1" VALUES(3, 3, 3, 0);
    INSERT INTO datax1 VALUES(3, 3, 3, 0);
    INSERT INTO data_ VALUES(3, 3, 3, 0);
    INSERT INTO dat VALUES(3, 3, 3, 0);
  }
  rbu close











} {}

do_test 1.2 {
  step_rbu test.db rbu.db
  db eval { SELECT * FROM x1 }
} {1 1 1 2 2 2}

................................................................................
  rbu close
  step_rbu test.db rbu.db
  db eval { SELECT * FROM x1 }
} {1 1 1 2 2 2}

do_test 1.4 {
  db eval { DELETE FROM x1 }
  sqlite3 rbu rbu.db
  rbu eval { DELETE FROM rbu_state }
  rbu close

  sqlite3rbu rbu test.db rbu.db
  rbu step
  rbu step
  rbu close

  forcecopy test.db-oal test.db-wal
  sqlite3rbu rbu test.db rbu.db
  rbu step
  list [catch { rbu close } msg] $msg
} {1 {SQLITE_ERROR - cannot update wal mode database}}



































































































finish_test








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set ::testprefix rbumisc

db close
sqlite3_shutdown
sqlite3_config_uri 1
reset_db









proc populate_rbu_db {} {
  forcedelete rbu.db
  sqlite3 rbu rbu.db
  rbu eval {
    CREATE TABLE data_x1(a, b, c, rbu_control);
    INSERT INTO data_x1 VALUES(1, 1, 1, 0);
    INSERT INTO data_x1 VALUES(2, 2, 2, 0);

................................................................................

    INSERT INTO "data x1" VALUES(3, 3, 3, 0);
    INSERT INTO datax1 VALUES(3, 3, 3, 0);
    INSERT INTO data_ VALUES(3, 3, 3, 0);
    INSERT INTO dat VALUES(3, 3, 3, 0);
  }
  rbu close
}

#-------------------------------------------------------------------------
# Ensure that RBU is not confused by oddly named tables in an RBU 
# database.
#
do_execsql_test 1.0 {
  CREATE TABLE x1(a, b, c INTEGER PRIMARY KEY);
}
do_test 1.1 {
  populate_rbu_db
} {}

do_test 1.2 {
  step_rbu test.db rbu.db
  db eval { SELECT * FROM x1 }
} {1 1 1 2 2 2}

................................................................................
  rbu close
  step_rbu test.db rbu.db
  db eval { SELECT * FROM x1 }
} {1 1 1 2 2 2}

do_test 1.4 {
  db eval { DELETE FROM x1 }
  populate_rbu_db



  sqlite3rbu rbu test.db rbu.db
  rbu step
  rbu step
  rbu close

  forcecopy test.db-oal test.db-wal
  sqlite3rbu rbu test.db rbu.db
  rbu step
  list [catch { rbu close } msg] $msg
} {1 {SQLITE_ERROR - cannot update wal mode database}}

#-------------------------------------------------------------------------
# Test the effect of a wal file appearing after the target database has
# been opened, but before it has been locked.
#
catch { db close }
testvfs tvfs -default 1

for {set N 1} {$N < 10} {incr N} {
  reset_db
  populate_rbu_db
  do_execsql_test 2.$N.0 {
    CREATE TABLE x1(a, b, c INTEGER PRIMARY KEY);
  }
  
  set nAccessCnt 0
  do_test 2.$N.1 {
    sqlite3rbu rbu test.db rbu.db
    rbu step
    rbu step
    rbu close
  } {SQLITE_OK}
  
  tvfs script xAccess
  tvfs filter xAccess
  set nAccessCnt 0
  proc xAccess {method file args} {
    global nAccessCnt
    if {[file tail $file]=="test.db-wal"} {
      incr nAccessCnt -1
      if {$nAccessCnt==0} {
        set fd [open test.db-wal w]
        puts -nonewline $fd [string repeat 0 2000]
        close $fd
      }
    }
    return SQLITE_OK
  }

  foreach r {
     {1 {SQLITE_ERROR - cannot update wal mode database}}
     {0 SQLITE_OK}
     {1 {SQLITE_CANTOPEN - unable to open database file}}
  } {
    set RES($r) 1
  }
  do_test 2.$N.2 {
    set ::nAccessCnt $N
    set res [list [catch {
      sqlite3rbu rbu test.db rbu.db
      rbu step
      rbu close
    } msg ] $msg]
    set RES($res)
  } {1}
  catch {rbu close}
}
catch {db close}
catch {tvfs delete}

#-------------------------------------------------------------------------
testvfs tvfs -default 1
reset_db
populate_rbu_db
do_execsql_test 3.0 {
  CREATE TABLE x1(a, b, c INTEGER PRIMARY KEY);
}
  
tvfs script xFileControl
tvfs filter xFileControl

proc xFileControl {method file verb args} {
  if {$verb=="ZIPVFS" && [info exists ::zipvfs_filecontrol]} {
    return $::zipvfs_filecontrol 
  }
  return "SQLITE_NOTFOUND"
}

breakpoint
foreach {tn ret err} {
  1 SQLITE_OK           0
  2 SQLITE_ERROR        1
  3 SQLITE_NOTFOUND     0
  4 SQLITE_OMIT         1
} {
  set ::zipvfs_filecontrol $ret
  do_test 3.$tn.1 {
    catch {
      sqlite3rbu rbu test.db rbu.db
      rbu step
      rbu close
    }
  } $err
}
catch {db close}
catch {tvfs delete}

#-------------------------------------------------------------------------

finish_test

Changes to ext/rbu/sqlite3rbu.c. 

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      rc = xControl(p->pReal, SQLITE_FCNTL_ZIPVFS, &dummy);
      if( rc==SQLITE_OK ){
        rc = SQLITE_ERROR;
        pRbu->zErrmsg = sqlite3_mprintf("rbu/zipvfs setup error");
      }else if( rc==SQLITE_NOTFOUND ){
        pRbu->pTargetFd = p;
        p->pRbu = pRbu;
        if( p->openFlags & SQLITE_OPEN_MAIN_DB ){
          rbuMainlistAdd(p);
        }
        if( p->pWalFd ) p->pWalFd->pRbu = pRbu;
        rc = SQLITE_OK;
      }
    }
    return rc;
  }
  else if( op==SQLITE_FCNTL_RBUCNT ){
................................................................................
    /* Magic number 1 is the WAL_CKPT_LOCK lock. Preventing SQLite from
    ** taking this lock also prevents any checkpoints from occurring. 
    ** todo: really, it's not clear why this might occur, as 
    ** wal_autocheckpoint ought to be turned off.  */
    if( ofst==WAL_LOCK_CKPT && n==1 ) rc = SQLITE_BUSY;
  }else{
    int bCapture = 0;
    if( n==1 && (flags & SQLITE_SHM_EXCLUSIVE)
     && pRbu && pRbu->eStage==RBU_STAGE_CAPTURE
     && (ofst==WAL_LOCK_WRITE || ofst==WAL_LOCK_CKPT || ofst==WAL_LOCK_READ0)
    ){
      bCapture = 1;
    }

    if( bCapture==0 || 0==(flags & SQLITE_SHM_UNLOCK) ){
      rc = p->pReal->pMethods->xShmLock(p->pReal, ofst, n, flags);
      if( bCapture && rc==SQLITE_OK ){
        pRbu->mLock |= (1 << ofst);
................................................................................
  int rc = SQLITE_OK;
  int eStage = (p->pRbu ? p->pRbu->eStage : 0);

  /* If not in RBU_STAGE_OAL, allow this call to pass through. Or, if this
  ** rbu is in the RBU_STAGE_OAL state, use heap memory for *-shm space 
  ** instead of a file on disk.  */
  assert( p->openFlags & (SQLITE_OPEN_MAIN_DB|SQLITE_OPEN_TEMP_DB) );
  if( eStage==RBU_STAGE_OAL || eStage==RBU_STAGE_MOVE ){
    if( iRegion<=p->nShm ){
      sqlite3_int64 nByte = (iRegion+1) * sizeof(char*);
      char **apNew = (char**)sqlite3_realloc64(p->apShm, nByte);






      if( apNew==0 ){
        rc = SQLITE_NOMEM;
      }else{
        memset(&apNew[p->nShm], 0, sizeof(char*) * (1 + iRegion - p->nShm));
        p->apShm = apNew;
        p->nShm = iRegion+1;
      }
    }

    if( rc==SQLITE_OK && p->apShm[iRegion]==0 ){
      char *pNew = (char*)sqlite3_malloc64(szRegion);
      if( pNew==0 ){
        rc = SQLITE_NOMEM;
      }else{
        memset(pNew, 0, szRegion);
        p->apShm[iRegion] = pNew;
      }








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      rc = xControl(p->pReal, SQLITE_FCNTL_ZIPVFS, &dummy);
      if( rc==SQLITE_OK ){
        rc = SQLITE_ERROR;
        pRbu->zErrmsg = sqlite3_mprintf("rbu/zipvfs setup error");
      }else if( rc==SQLITE_NOTFOUND ){
        pRbu->pTargetFd = p;
        p->pRbu = pRbu;

        rbuMainlistAdd(p);

        if( p->pWalFd ) p->pWalFd->pRbu = pRbu;
        rc = SQLITE_OK;
      }
    }
    return rc;
  }
  else if( op==SQLITE_FCNTL_RBUCNT ){
................................................................................
    /* Magic number 1 is the WAL_CKPT_LOCK lock. Preventing SQLite from
    ** taking this lock also prevents any checkpoints from occurring. 
    ** todo: really, it's not clear why this might occur, as 
    ** wal_autocheckpoint ought to be turned off.  */
    if( ofst==WAL_LOCK_CKPT && n==1 ) rc = SQLITE_BUSY;
  }else{
    int bCapture = 0;

    if( pRbu && pRbu->eStage==RBU_STAGE_CAPTURE ){


      bCapture = 1;
    }

    if( bCapture==0 || 0==(flags & SQLITE_SHM_UNLOCK) ){
      rc = p->pReal->pMethods->xShmLock(p->pReal, ofst, n, flags);
      if( bCapture && rc==SQLITE_OK ){
        pRbu->mLock |= (1 << ofst);
................................................................................
  int rc = SQLITE_OK;
  int eStage = (p->pRbu ? p->pRbu->eStage : 0);

  /* If not in RBU_STAGE_OAL, allow this call to pass through. Or, if this
  ** rbu is in the RBU_STAGE_OAL state, use heap memory for *-shm space 
  ** instead of a file on disk.  */
  assert( p->openFlags & (SQLITE_OPEN_MAIN_DB|SQLITE_OPEN_TEMP_DB) );
  if( eStage==RBU_STAGE_OAL ){

    sqlite3_int64 nByte = (iRegion+1) * sizeof(char*);
    char **apNew = (char**)sqlite3_realloc64(p->apShm, nByte);

    /* This is an RBU connection that uses its own heap memory for the
    ** pages of the *-shm file. Since no other process can have run
    ** recovery, the connection must request *-shm pages in order
    ** from start to finish.  */
    assert( iRegion==p->nShm );
    if( apNew==0 ){
      rc = SQLITE_NOMEM;
    }else{
      memset(&apNew[p->nShm], 0, sizeof(char*) * (1 + iRegion - p->nShm));
      p->apShm = apNew;
      p->nShm = iRegion+1;
    }


    if( rc==SQLITE_OK ){
      char *pNew = (char*)sqlite3_malloc64(szRegion);
      if( pNew==0 ){
        rc = SQLITE_NOMEM;
      }else{
        memset(pNew, 0, szRegion);
        p->apShm[iRegion] = pNew;
      }

Changes to src/test_vfs.c. 

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    { SQLITE_OK,       "SQLITE_OK"     },
    { SQLITE_ERROR,    "SQLITE_ERROR"  },
    { SQLITE_IOERR,    "SQLITE_IOERR"  },
    { SQLITE_LOCKED,   "SQLITE_LOCKED" },
    { SQLITE_BUSY,     "SQLITE_BUSY"   },
    { SQLITE_READONLY, "SQLITE_READONLY"   },
    { SQLITE_READONLY_CANTINIT, "SQLITE_READONLY_CANTINIT"   },

    { -1,              "SQLITE_OMIT"   },
  };

  const char *z;
  int i;

  z = Tcl_GetStringResult(p->interp);
................................................................................
  if( p->pScript && (p->mask&TESTVFS_FCNTL_MASK) ){
    struct Fcntl {
      int iFnctl;
      const char *zFnctl;
    } aF[] = {
      { SQLITE_FCNTL_BEGIN_ATOMIC_WRITE, "BEGIN_ATOMIC_WRITE" },
      { SQLITE_FCNTL_COMMIT_ATOMIC_WRITE, "COMMIT_ATOMIC_WRITE" },

    };
    int i;
    for(i=0; i<sizeof(aF)/sizeof(aF[0]); i++){
      if( op==aF[i].iFnctl ) break;
    }
    if( i<sizeof(aF)/sizeof(aF[0]) ){
      int rc = 0;
      tvfsExecTcl(p, "xFileControl", 
          Tcl_NewStringObj(pFd->zFilename, -1), 
          Tcl_NewStringObj(aF[i].zFnctl, -1),
          0, 0
      );
      tvfsResultCode(p, &rc);
      if( rc ) return rc;
    }
  }
  return sqlite3OsFileControl(pFd->pReal, op, pArg);
}

/*
** Return the sector-size in bytes for an tvfs-file.








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    { SQLITE_OK,       "SQLITE_OK"     },
    { SQLITE_ERROR,    "SQLITE_ERROR"  },
    { SQLITE_IOERR,    "SQLITE_IOERR"  },
    { SQLITE_LOCKED,   "SQLITE_LOCKED" },
    { SQLITE_BUSY,     "SQLITE_BUSY"   },
    { SQLITE_READONLY, "SQLITE_READONLY"   },
    { SQLITE_READONLY_CANTINIT, "SQLITE_READONLY_CANTINIT"   },
    { SQLITE_NOTFOUND, "SQLITE_NOTFOUND"   },
    { -1,              "SQLITE_OMIT"   },
  };

  const char *z;
  int i;

  z = Tcl_GetStringResult(p->interp);
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  if( p->pScript && (p->mask&TESTVFS_FCNTL_MASK) ){
    struct Fcntl {
      int iFnctl;
      const char *zFnctl;
    } aF[] = {
      { SQLITE_FCNTL_BEGIN_ATOMIC_WRITE, "BEGIN_ATOMIC_WRITE" },
      { SQLITE_FCNTL_COMMIT_ATOMIC_WRITE, "COMMIT_ATOMIC_WRITE" },
      { SQLITE_FCNTL_ZIPVFS, "ZIPVFS" },
    };
    int i;
    for(i=0; i<sizeof(aF)/sizeof(aF[0]); i++){
      if( op==aF[i].iFnctl ) break;
    }
    if( i<sizeof(aF)/sizeof(aF[0]) ){
      int rc = 0;
      tvfsExecTcl(p, "xFileControl", 
          Tcl_NewStringObj(pFd->zFilename, -1), 
          Tcl_NewStringObj(aF[i].zFnctl, -1),
          0, 0
      );
      tvfsResultCode(p, &rc);
      if( rc ) return (rc<0 ? SQLITE_OK : rc);
    }
  }
  return sqlite3OsFileControl(pFd->pReal, op, pArg);
}

/*
** Return the sector-size in bytes for an tvfs-file.

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