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Overview
Comment:Merge trunk changes into experimental branch.
Downloads: Tarball | ZIP archive | SQL archive
Timelines: family | ancestors | descendants | both | experimental
Files: files | file ages | folders
SHA1:15368a9f8523d5fb611cd576080daed2cf2f1500
User & Date: dan 2010-08-03 18:29:05
Context
2010-08-04
19:14
Fix some problems with error recovery introduced while reworking pager state. check-in: 77eaab6f user: dan tags: experimental
2010-08-03
18:29
Merge trunk changes into experimental branch. check-in: 15368a9f user: dan tags: experimental
18:18
Set the Pager.eState variable to PAGER_ERROR whenever the pager enters the error state. check-in: 4d384761 user: dan tags: experimental
18:06
Fix disabled implementation-mark comments in func.c. check-in: 57c09600 user: drh tags: trunk
Changes
Hide Diffs Unified Diffs Ignore Whitespace Patch

Changes to src/btree.c.

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/*
** Return non-zero if a transaction is active.
*/
int sqlite3BtreeIsInTrans(Btree *p){
  assert( p==0 || sqlite3_mutex_held(p->db->mutex) );
  return (p && (p->inTrans==TRANS_WRITE));
}
























/*
** Return non-zero if a read (or write) transaction is active.
*/
int sqlite3BtreeIsInReadTrans(Btree *p){
  assert( p );
  assert( sqlite3_mutex_held(p->db->mutex) );







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/*
** Return non-zero if a transaction is active.
*/
int sqlite3BtreeIsInTrans(Btree *p){
  assert( p==0 || sqlite3_mutex_held(p->db->mutex) );
  return (p && (p->inTrans==TRANS_WRITE));
}

#ifndef SQLITE_OMIT_WAL
/*
** Run a checkpoint on the Btree passed as the first argument.
**
** Return SQLITE_LOCKED if this or any other connection has an open 
** transaction on the shared-cache the argument Btree is connected to.
*/
int sqlite3BtreeCheckpoint(Btree *p){
  int rc = SQLITE_OK;
  if( p ){
    BtShared *pBt = p->pBt;
    sqlite3BtreeEnter(p);
    if( pBt->inTransaction!=TRANS_NONE ){
      rc = SQLITE_LOCKED;
    }else{
      rc = sqlite3PagerCheckpoint(pBt->pPager);
    }
    sqlite3BtreeLeave(p);
  }
  return rc;
}
#endif

/*
** Return non-zero if a read (or write) transaction is active.
*/
int sqlite3BtreeIsInReadTrans(Btree *p){
  assert( p );
  assert( sqlite3_mutex_held(p->db->mutex) );

Changes to src/btree.h.

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int sqlite3BtreeCount(BtCursor *, i64 *);
#endif

#ifdef SQLITE_TEST
int sqlite3BtreeCursorInfo(BtCursor*, int*, int);
void sqlite3BtreeCursorList(Btree*);
#endif





/*
** If we are not using shared cache, then there is no need to
** use mutexes to access the BtShared structures.  So make the
** Enter and Leave procedures no-ops.
*/
#ifndef SQLITE_OMIT_SHARED_CACHE







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int sqlite3BtreeCount(BtCursor *, i64 *);
#endif

#ifdef SQLITE_TEST
int sqlite3BtreeCursorInfo(BtCursor*, int*, int);
void sqlite3BtreeCursorList(Btree*);
#endif

#ifndef SQLITE_OMIT_WAL
  int sqlite3BtreeCheckpoint(Btree*);
#endif

/*
** If we are not using shared cache, then there is no need to
** use mutexes to access the BtShared structures.  So make the
** Enter and Leave procedures no-ops.
*/
#ifndef SQLITE_OMIT_SHARED_CACHE

Changes to src/func.c.

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  sqlite3_context *context,
  int argc,
  sqlite3_value **argv
){
  const char *zOptName;
  assert( argc==1 );
  UNUSED_PARAMETER(argc);
  /* IMP: R-xxxx This function is an SQL wrapper around the
  ** sqlite3_compileoption_used() C interface. */


  if( (zOptName = (const char*)sqlite3_value_text(argv[0]))!=0 ){
    sqlite3_result_int(context, sqlite3_compileoption_used(zOptName));
  }
}
#endif /* SQLITE_OMIT_COMPILEOPTION_DIAGS */

/*
................................................................................
  sqlite3_context *context,
  int argc,
  sqlite3_value **argv
){
  int n;
  assert( argc==1 );
  UNUSED_PARAMETER(argc);
  /* IMP: R-xxxx This function is an SQL wrapper around the
  ** sqlite3_compileoption_get() C interface. */

  n = sqlite3_value_int(argv[0]);
  sqlite3_result_text(context, sqlite3_compileoption_get(n), -1, SQLITE_STATIC);
}
#endif /* SQLITE_OMIT_COMPILEOPTION_DIAGS */

/* Array for converting from half-bytes (nybbles) into ASCII hex
** digits. */







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  sqlite3_context *context,
  int argc,
  sqlite3_value **argv
){
  const char *zOptName;
  assert( argc==1 );
  UNUSED_PARAMETER(argc);
  /* IMP: R-39564-36305 The sqlite_compileoption_used() SQL
  ** function is a wrapper around the sqlite3_compileoption_used() C/C++
  ** function.
  */
  if( (zOptName = (const char*)sqlite3_value_text(argv[0]))!=0 ){
    sqlite3_result_int(context, sqlite3_compileoption_used(zOptName));
  }
}
#endif /* SQLITE_OMIT_COMPILEOPTION_DIAGS */

/*
................................................................................
  sqlite3_context *context,
  int argc,
  sqlite3_value **argv
){
  int n;
  assert( argc==1 );
  UNUSED_PARAMETER(argc);
  /* IMP: R-04922-24076 The sqlite_compileoption_get() SQL function
  ** is a wrapper around the sqlite3_compileoption_get() C/C++ function.
  */
  n = sqlite3_value_int(argv[0]);
  sqlite3_result_text(context, sqlite3_compileoption_get(n), -1, SQLITE_STATIC);
}
#endif /* SQLITE_OMIT_COMPILEOPTION_DIAGS */

/* Array for converting from half-bytes (nybbles) into ASCII hex
** digits. */

Changes to src/insert.c.

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    int allOk = sqlite3VdbeMakeLabel(v);
    pParse->ckBase = regData;
    sqlite3ExprIfTrue(pParse, pTab->pCheck, allOk, SQLITE_JUMPIFNULL);
    onError = overrideError!=OE_Default ? overrideError : OE_Abort;
    if( onError==OE_Ignore ){
      sqlite3VdbeAddOp2(v, OP_Goto, 0, ignoreDest);
    }else{

      sqlite3HaltConstraint(pParse, onError, 0, 0);
    }
    sqlite3VdbeResolveLabel(v, allOk);
  }
#endif /* !defined(SQLITE_OMIT_CHECK) */

  /* If we have an INTEGER PRIMARY KEY, make sure the primary key







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    int allOk = sqlite3VdbeMakeLabel(v);
    pParse->ckBase = regData;
    sqlite3ExprIfTrue(pParse, pTab->pCheck, allOk, SQLITE_JUMPIFNULL);
    onError = overrideError!=OE_Default ? overrideError : OE_Abort;
    if( onError==OE_Ignore ){
      sqlite3VdbeAddOp2(v, OP_Goto, 0, ignoreDest);
    }else{
      if( onError==OE_Replace ) onError = OE_Abort; /* IMP: R-15569-63625 */
      sqlite3HaltConstraint(pParse, onError, 0, 0);
    }
    sqlite3VdbeResolveLabel(v, allOk);
  }
#endif /* !defined(SQLITE_OMIT_CHECK) */

  /* If we have an INTEGER PRIMARY KEY, make sure the primary key

Changes to src/main.c.

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  int rc = SQLITE_OK;             /* Return code */
  int i;                          /* Used to iterate through attached dbs */

  assert( sqlite3_mutex_held(db->mutex) );

  for(i=0; i<db->nDb && rc==SQLITE_OK; i++){
    if( i==iDb || iDb==SQLITE_MAX_ATTACHED ){
      Btree *pBt = db->aDb[i].pBt;
      if( pBt ){
        if( sqlite3BtreeIsInReadTrans(pBt) ){
          rc = SQLITE_LOCKED;
        }else{
          sqlite3BtreeEnter(pBt);
          rc = sqlite3PagerCheckpoint(sqlite3BtreePager(pBt));
          sqlite3BtreeLeave(pBt);
        }
      }
    }
  }

  return rc;
}
#endif /* SQLITE_OMIT_WAL */








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  int rc = SQLITE_OK;             /* Return code */
  int i;                          /* Used to iterate through attached dbs */

  assert( sqlite3_mutex_held(db->mutex) );

  for(i=0; i<db->nDb && rc==SQLITE_OK; i++){
    if( i==iDb || iDb==SQLITE_MAX_ATTACHED ){
      rc = sqlite3BtreeCheckpoint(db->aDb[i].pBt);









    }
  }

  return rc;
}
#endif /* SQLITE_OMIT_WAL */

Changes to src/pager.c.

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      ** journal requires a sync here. However, in locking_mode=exclusive
      ** on a system under memory pressure it is just possible that this is 
      ** not the case. In this case it is likely enough that the redundant
      ** xSync() call will be changed to a no-op by the OS anyhow. 
      */
      rc = syncJournal(pPager, 0);
      if( rc!=SQLITE_OK ) goto commit_phase_one_exit;

      rc = pager_write_pagelist(pPager,sqlite3PcacheDirtyList(pPager->pPCache));
      if( rc!=SQLITE_OK ){
        assert( rc!=SQLITE_IOERR_BLOCKED );
        goto commit_phase_one_exit;
      }
      sqlite3PcacheCleanAll(pPager->pPCache);
  







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      ** journal requires a sync here. However, in locking_mode=exclusive
      ** on a system under memory pressure it is just possible that this is 
      ** not the case. In this case it is likely enough that the redundant
      ** xSync() call will be changed to a no-op by the OS anyhow. 
      */
      rc = syncJournal(pPager, 0);
      if( rc!=SQLITE_OK ) goto commit_phase_one_exit;
  
      rc = pager_write_pagelist(pPager,sqlite3PcacheDirtyList(pPager->pPCache));
      if( rc!=SQLITE_OK ){
        assert( rc!=SQLITE_IOERR_BLOCKED );
        goto commit_phase_one_exit;
      }
      sqlite3PcacheCleanAll(pPager->pPCache);
  

Changes to src/tclsqlite.c.

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  ** Display SQLITE_STMTSTATUS_FULLSCAN_STEP or 
  ** SQLITE_STMTSTATUS_SORT for the most recent eval.
  */
  case DB_STATUS: {
    int v;
    const char *zOp;
    if( objc!=3 ){
      Tcl_WrongNumArgs(interp, 2, objv, "(step|sort)");
      return TCL_ERROR;
    }
    zOp = Tcl_GetString(objv[2]);
    if( strcmp(zOp, "step")==0 ){
      v = pDb->nStep;
    }else if( strcmp(zOp, "sort")==0 ){
      v = pDb->nSort;







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  ** Display SQLITE_STMTSTATUS_FULLSCAN_STEP or 
  ** SQLITE_STMTSTATUS_SORT for the most recent eval.
  */
  case DB_STATUS: {
    int v;
    const char *zOp;
    if( objc!=3 ){
      Tcl_WrongNumArgs(interp, 2, objv, "(step|sort|autoindex)");
      return TCL_ERROR;
    }
    zOp = Tcl_GetString(objv[2]);
    if( strcmp(zOp, "step")==0 ){
      v = pDb->nStep;
    }else if( strcmp(zOp, "sort")==0 ){
      v = pDb->nSort;

Changes to src/update.c.

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** 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.
**
sqlite*************************************************************************
** This file contains C code routines that are called by the parser
** to handle UPDATE statements.
*/
#include "sqliteInt.h"

#ifndef SQLITE_OMIT_VIRTUALTABLE
/* Forward declaration */







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** 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.
**
*************************************************************************
** This file contains C code routines that are called by the parser
** to handle UPDATE statements.
*/
#include "sqliteInt.h"

#ifndef SQLITE_OMIT_VIRTUALTABLE
/* Forward declaration */

Changes to src/vdbeaux.c.

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#ifdef SQLITE_TEST
    extern int sqlite3_search_count;
#endif
    assert( p->isTable );
    rc = sqlite3BtreeMovetoUnpacked(p->pCursor, 0, p->movetoTarget, 0, &res);
    if( rc ) return rc;
    p->lastRowid = p->movetoTarget;

    p->rowidIsValid = ALWAYS(res==0) ?1:0;
    if( NEVER(res<0) ){
      rc = sqlite3BtreeNext(p->pCursor, &res);
      if( rc ) return rc;
    }
#ifdef SQLITE_TEST
    sqlite3_search_count++;
#endif
    p->deferredMoveto = 0;
    p->cacheStatus = CACHE_STALE;
  }else if( ALWAYS(p->pCursor) ){
    int hasMoved;







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#ifdef SQLITE_TEST
    extern int sqlite3_search_count;
#endif
    assert( p->isTable );
    rc = sqlite3BtreeMovetoUnpacked(p->pCursor, 0, p->movetoTarget, 0, &res);
    if( rc ) return rc;
    p->lastRowid = p->movetoTarget;
    if( res!=0 ) return SQLITE_CORRUPT_BKPT;
    p->rowidIsValid = 1;




#ifdef SQLITE_TEST
    sqlite3_search_count++;
#endif
    p->deferredMoveto = 0;
    p->cacheStatus = CACHE_STALE;
  }else if( ALWAYS(p->pCursor) ){
    int hasMoved;

Changes to src/vdbemem.c.

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  if( !pExpr ){
    *ppVal = 0;
    return SQLITE_OK;
  }
  op = pExpr->op;

  /* op can only be TK_REGISTER is we have compiled with SQLITE_ENABLE_STAT2.
  ** The ifdef here is to enable us to achieve 100% branch test coverage even
  ** when SQLITE_ENABLE_STAT2 is omitted.
  */
#ifdef SQLITE_ENABLE_STAT2
  if( op==TK_REGISTER ) op = pExpr->op2;
#else
  if( NEVER(op==TK_REGISTER) ) op = pExpr->op2;







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  if( !pExpr ){
    *ppVal = 0;
    return SQLITE_OK;
  }
  op = pExpr->op;

  /* op can only be TK_REGISTER if we have compiled with SQLITE_ENABLE_STAT2.
  ** The ifdef here is to enable us to achieve 100% branch test coverage even
  ** when SQLITE_ENABLE_STAT2 is omitted.
  */
#ifdef SQLITE_ENABLE_STAT2
  if( op==TK_REGISTER ) op = pExpr->op2;
#else
  if( NEVER(op==TK_REGISTER) ) op = pExpr->op2;

Changes to test/conflict.test.

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do_test conflict-12.4 {
  execsql {
    UPDATE OR REPLACE t5 SET a=a+1 WHERE a=1;
    SELECT * FROM t5;
  }
} {2 one}
























finish_test








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do_test conflict-12.4 {
  execsql {
    UPDATE OR REPLACE t5 SET a=a+1 WHERE a=1;
    SELECT * FROM t5;
  }
} {2 one}


# Ticket [c38baa3d969eab7946dc50ba9d9b4f0057a19437]
# REPLACE works like ABORT on a CHECK constraint.
#
do_test conflict-13.1 {
  execsql {
    CREATE TABLE t13(a CHECK(a!=2));
    BEGIN;
    REPLACE INTO t13 VALUES(1);
  }
  catchsql {
    REPLACE INTO t13 VALUES(2);
  }
} {1 {constraint failed}}
do_test conflict-13.2 {
  execsql {
    REPLACE INTO t13 VALUES(3);
    COMMIT;
    SELECT * FROM t13;
  }
} {1 3}


finish_test

Changes to test/wal2.test.

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} {wal 1 2 3 4 5 6 7 8 9}

do_test wal2-11.1.1 {
  sqlite3 db2 test.db
  execsql { SELECT name FROM sqlite_master } db2
} {t1}


# Set all zeroed slots in the first hash table to invalid values.
#
set blob [string range [tvfs shm $::filename] 0 16383]
set I [string range [tvfs shm $::filename] 16384 end]
binary scan $I t* L
set I [list]
foreach p $L {
  lappend I [expr $p ? $p : 400]
}
append blob [binary format t* $I]
tvfs shm $::filename $blob
do_test wal2-11.2 {
  catchsql { INSERT INTO t1 VALUES(10, 11, 12) }
} {1 {database disk image is malformed}}

# Fill up the hash table on the first page of shared memory with 0x55 bytes.
#
set blob [string range [tvfs shm $::filename] 0 16383]
append blob [string repeat [binary format c 55] 16384]
tvfs shm $::filename $blob
do_test wal2-11.3 {
  catchsql { SELECT * FROM t1 } db2
} {1 {database disk image is malformed}}


db close
db2 close
tvfs delete

#-------------------------------------------------------------------------
# If a connection is required to create a WAL or SHM file, it creates 
................................................................................
      } $b($can_read,$can_write)
    }
    catch { db close }
  }
}

finish_test








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} {wal 1 2 3 4 5 6 7 8 9}

do_test wal2-11.1.1 {
  sqlite3 db2 test.db
  execsql { SELECT name FROM sqlite_master } db2
} {t1}

if {$::tcl_version>=8.5} {
  # Set all zeroed slots in the first hash table to invalid values.
  #
  set blob [string range [tvfs shm $::filename] 0 16383]
  set I [string range [tvfs shm $::filename] 16384 end]
  binary scan $I t* L
  set I [list]
  foreach p $L {
    lappend I [expr $p ? $p : 400]
  }
  append blob [binary format t* $I]
  tvfs shm $::filename $blob
  do_test wal2-11.2 {
    catchsql { INSERT INTO t1 VALUES(10, 11, 12) }
  } {1 {database disk image is malformed}}
  
  # Fill up the hash table on the first page of shared memory with 0x55 bytes.
  #
  set blob [string range [tvfs shm $::filename] 0 16383]
  append blob [string repeat [binary format c 55] 16384]
  tvfs shm $::filename $blob
  do_test wal2-11.3 {
    catchsql { SELECT * FROM t1 } db2
  } {1 {database disk image is malformed}}
}

db close
db2 close
tvfs delete

#-------------------------------------------------------------------------
# If a connection is required to create a WAL or SHM file, it creates 
................................................................................
      } $b($can_read,$can_write)
    }
    catch { db close }
  }
}

finish_test

Added test/walshared.test.

























































































































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# 2010 August 2
#
# 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.
#
#***********************************************************************
# This file implements regression tests for SQLite library.  The
# focus of this file is testing the operation of the library in
# "PRAGMA journal_mode=WAL" mode with shared-cache turned on.
#

set testdir [file dirname $argv0]
source $testdir/tester.tcl
db close
set ::enable_shared_cache [sqlite3_enable_shared_cache 1]

sqlite3 db  test.db
sqlite3 db2 test.db

do_test walshared-1.0 {
  execsql {
    PRAGMA cache_size = 10;
    PRAGMA journal_mode = WAL;
    CREATE TABLE t1(a PRIMARY KEY, b UNIQUE);
    INSERT INTO t1 VALUES(randomblob(100), randomblob(200));
  }
} {wal}

do_test walshared-1.1 {
  execsql {
    BEGIN;
      INSERT INTO t1 VALUES(randomblob(100), randomblob(200));
      INSERT INTO t1 SELECT randomblob(100), randomblob(200) FROM t1;
      INSERT INTO t1 SELECT randomblob(100), randomblob(200) FROM t1;
      INSERT INTO t1 SELECT randomblob(100), randomblob(200) FROM t1;
  }
} {}

do_test walshared-1.2 {
  catchsql { PRAGMA wal_checkpoint }
} {1 {database table is locked}}

do_test walshared-1.3 {
  catchsql { PRAGMA wal_checkpoint } db2
} {1 {database table is locked}}

do_test walshared-1.4 {
  execsql { COMMIT }
  execsql { PRAGMA integrity_check } db2
} {ok}



sqlite3_enable_shared_cache $::enable_shared_cache
finish_test