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Overview
Comment:Merge in the latest changes from the trunk.
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SHA1: 435b57dc2be7b071270a6cddece297758b8153aa
User & Date: drh 2011-04-06 22:33:50.737
Context
2011-04-06
23:39
Fix VC++ compiler warnings. (check-in: 7b7c8d366c user: drh tags: sessions)
22:33
Merge in the latest changes from the trunk. (check-in: 435b57dc2b user: drh tags: sessions)
22:05
Fix a performance regression: Keep two btree masks in each prepared statement; one for btrees used and another for btrees that require locks. Only try to lock the btrees identified by the second mask. (check-in: 614de91a50 user: drh tags: trunk)
2011-04-05
22:13
Merge the latest trunk changes into the sessions branch. (check-in: 45f2026172 user: drh tags: sessions)
Changes
Side-by-Side Diff Ignore Whitespace Patch
Changes to src/btmutex.c.
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  Btree *p;
  assert( sqlite3_mutex_held(db->mutex) );
  for(i=0; i<db->nDb; i++){
    p = db->aDb[i].pBt;
    if( p ) sqlite3BtreeLeave(p);
  }
}

/*
** Return true if a particular Btree requires a lock.  Return FALSE if
** no lock is ever required since it is not sharable.
*/
int sqlite3BtreeSharable(Btree *p){
  return p->sharable;
}

#ifndef NDEBUG
/*
** Return true if the current thread holds the database connection
** mutex and all required BtShared mutexes.
**
** This routine is used inside assert() statements only.
Changes to src/btree.c.
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  sqlite3BtreeEnter(p);
  assert( pBt && pBt->pPager );
  rc = sqlite3PagerNosync(pBt->pPager);
  sqlite3BtreeLeave(p);
  return rc;
}

#if !defined(SQLITE_OMIT_PAGER_PRAGMAS) || !defined(SQLITE_OMIT_VACUUM)
/*
** Change the default pages size and the number of reserved bytes per page.
** Or, if the page size has already been fixed, return SQLITE_READONLY 
** without changing anything.
**
** The page size must be a power of 2 between 512 and 65536.  If the page
** size supplied does not meet this constraint then the page size is not
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/*
** Return the currently defined page size
*/
int sqlite3BtreeGetPageSize(Btree *p){
  return p->pBt->pageSize;
}

#if !defined(SQLITE_OMIT_PAGER_PRAGMAS) || !defined(SQLITE_OMIT_VACUUM)
/*
** Return the number of bytes of space at the end of every page that
** are intentually left unused.  This is the "reserved" space that is
** sometimes used by extensions.
*/
int sqlite3BtreeGetReserve(Btree *p){
  int n;
Changes to src/btree.h.
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  void sqlite3BtreeEnterAll(sqlite3*);
#else
# define sqlite3BtreeEnter(X) 
# define sqlite3BtreeEnterAll(X)
#endif

#if !defined(SQLITE_OMIT_SHARED_CACHE) && SQLITE_THREADSAFE
  int sqlite3BtreeSharable(Btree*);
  void sqlite3BtreeLeave(Btree*);
  void sqlite3BtreeEnterCursor(BtCursor*);
  void sqlite3BtreeLeaveCursor(BtCursor*);
  void sqlite3BtreeLeaveAll(sqlite3*);
#ifndef NDEBUG
  /* These routines are used inside assert() statements only. */
  int sqlite3BtreeHoldsMutex(Btree*);
  int sqlite3BtreeHoldsAllMutexes(sqlite3*);
  int sqlite3SchemaMutexHeld(sqlite3*,int,Schema*);
#endif
#else

# define sqlite3BtreeSharable(X) 0
# define sqlite3BtreeLeave(X)
# define sqlite3BtreeEnterCursor(X)
# define sqlite3BtreeLeaveCursor(X)
# define sqlite3BtreeLeaveAll(X)

# define sqlite3BtreeHoldsMutex(X) 1
# define sqlite3BtreeHoldsAllMutexes(X) 1
Changes to src/loadext.c.
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# define sqlite3_column_origin_name16   0
#endif

#ifdef SQLITE_OMIT_COMPLETE
# define sqlite3_complete 0
# define sqlite3_complete16 0
#endif

#ifdef SQLITE_OMIT_DECLTYPE
# define sqlite3_column_decltype16      0
# define sqlite3_column_decltype        0
#endif

#ifdef SQLITE_OMIT_PROGRESS_CALLBACK
# define sqlite3_progress_handler 0
#endif

#ifdef SQLITE_OMIT_VIRTUALTABLE
# define sqlite3_create_module 0
Changes to src/os_unix.c.
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      ** ftruncate() to set the file size, then write a single byte to
      ** the last byte in each block within the extended region. This
      ** is the same technique used by glibc to implement posix_fallocate()
      ** on systems that do not have a real fallocate() system call.
      */
      int nBlk = buf.st_blksize;  /* File-system block size */
      i64 iWrite;                 /* Next offset to write to */
      int nWrite;                 /* Return value from seekAndWrite() */

      if( robust_ftruncate(pFile->h, nSize) ){
        pFile->lastErrno = errno;
        return unixLogError(SQLITE_IOERR_TRUNCATE, "ftruncate", pFile->zPath);
      }
      iWrite = ((buf.st_size + 2*nBlk - 1)/nBlk)*nBlk-1;
      do {
        nWrite = seekAndWrite(pFile, iWrite, "", 1);
      while( iWrite<nSize ){
        int nWrite = seekAndWrite(pFile, iWrite, "", 1);
        iWrite += nBlk;
      } while( nWrite==1 && iWrite<nSize );
      if( nWrite!=1 ) return SQLITE_IOERR_WRITE;
        if( nWrite!=1 ) return SQLITE_IOERR_WRITE;
        iWrite += nBlk;
      }
#endif
    }
  }

  return SQLITE_OK;
}

Changes to src/select.c.
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  if( pParse->explain==2 ){
    Vdbe *v = pParse->pVdbe;
    char *zMsg = sqlite3MPrintf(pParse->db, "USE TEMP B-TREE FOR %s", zUsage);
    sqlite3VdbeAddOp4(v, OP_Explain, pParse->iSelectId, 0, 0, zMsg, P4_DYNAMIC);
  }
}

/*
** Assign expression b to lvalue a. A second, no-op, version of this macro
** is provided when SQLITE_OMIT_EXPLAIN is defined. This allows the code
** in sqlite3Select() to assign values to structure member variables that
** only exist if SQLITE_OMIT_EXPLAIN is not defined without polluting the
** code with #ifndef directives.
*/
# define explainSetInteger(a, b) a = b

#else
/* No-op versions of the explainXXX() functions and macros. */
# define explainTempTable(y,z)
# define explainSetInteger(y,z)
#endif

#if !defined(SQLITE_OMIT_EXPLAIN) && !defined(SQLITE_OMIT_COMPOUND_SELECT)
/*
** Unless an "EXPLAIN QUERY PLAN" command is being processed, this function
** is a no-op. Otherwise, it adds a single row of output to the EQP result,
** where the caption is of one of the two forms:
**
**   "COMPOSITE SUBQUERIES iSub1 and iSub2 (op)"
**   "COMPOSITE SUBQUERIES iSub1 and iSub2 USING TEMP B-TREE (op)"
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    char *zMsg = sqlite3MPrintf(
        pParse->db, "COMPOUND SUBQUERIES %d AND %d %s(%s)", iSub1, iSub2,
        bUseTmp?"USING TEMP B-TREE ":"", selectOpName(op)
    );
    sqlite3VdbeAddOp4(v, OP_Explain, pParse->iSelectId, 0, 0, zMsg, P4_DYNAMIC);
  }
}

/*
** Assign expression b to lvalue a. A second, no-op, version of this macro
** is provided when SQLITE_OMIT_EXPLAIN is defined. This allows the code
** in sqlite3Select() to assign values to structure member variables that
** only exist if SQLITE_OMIT_EXPLAIN is not defined without polluting the
** code with #ifndef directives.
*/
# define explainSetInteger(a, b) a = b

#else
/* No-op versions of the explainXXX() functions and macros. */
# define explainTempTable(y,z)
# define explainComposite(v,w,x,y,z)
# define explainSetInteger(y,z)
#endif

/*
** If the inner loop was generated using a non-null pOrderBy argument,
** then the results were placed in a sorter.  After the loop is terminated
** we need to run the sorter and output the results.  The following
** routine generates the code needed to do that.
Changes to src/sqliteLimit.h.
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*/
#ifndef SQLITE_DEFAULT_WAL_AUTOCHECKPOINT
# define SQLITE_DEFAULT_WAL_AUTOCHECKPOINT  1000
#endif

/*
** The maximum number of attached databases.  This must be between 0
** and 30.  The upper bound on 30 is because a 32-bit integer bitmap
** and 62.  The upper bound on 62 is because a 64-bit integer bitmap
** is used internally to track attached databases.
*/
#ifndef SQLITE_MAX_ATTACHED
# define SQLITE_MAX_ATTACHED 10
#endif


Changes to src/test_server.c.
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    /* Signal the client that the message has been processed.
    */
    pMsg->op = MSG_Done;
    pthread_mutex_unlock(&pMsg->clientMutex);
    pthread_cond_signal(&pMsg->clientWakeup);
  }
  sqlite3_thread_cleanup();
  pthread_mutex_unlock(&g.serverMutex);
  return 0;
}

/*
** Start a server thread if one is not already running.  If there
** is aleady a server thread running, the new thread will quickly
Changes to src/vdbe.c.
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  ** sqlite3InitCallback().
  */
#ifdef SQLITE_DEBUG
  for(iDb=0; iDb<db->nDb; iDb++){
    assert( iDb==1 || sqlite3BtreeHoldsMutex(db->aDb[iDb].pBt) );
  }
#endif
  assert( p->btreeMask == ~(yDbMask)0 );


  iDb = pOp->p1;
  assert( iDb>=0 && iDb<db->nDb );
  assert( DbHasProperty(db, iDb, DB_SchemaLoaded) );
  /* Used to be a conditional */ {
    zMaster = SCHEMA_TABLE(iDb);
    initData.db = db;
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  u8 minWriteFileFormat;  /* Minimum file format for writable database files */
  u8 inVtabMethod;        /* See comments above */
  u8 usesStmtJournal;     /* True if uses a statement journal */
  u8 readOnly;            /* True for read-only statements */
  u8 isPrepareV2;         /* True if prepared with prepare_v2() */
  int nChange;            /* Number of db changes made since last reset */
  yDbMask btreeMask;      /* Bitmask of db->aDb[] entries referenced */
  yDbMask lockMask;       /* Subset of btreeMask that requires a lock */
  int iStatement;         /* Statement number (or 0 if has not opened stmt) */
  int aCounter[3];        /* Counters used by sqlite3_stmt_status() */
#ifndef SQLITE_OMIT_TRACE
  i64 startTime;          /* Time when query started - used for profiling */
#endif
  i64 nFkConstraint;      /* Number of imm. FK constraints this VM */
  i64 nStmtDefCons;       /* Number of def. constraints when stmt started */
Changes to src/vdbeaux.c.
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  pOp->p3 = p3;
  pOp->p4.p = 0;
  pOp->p4type = P4_NOTUSED;
  p->expired = 0;
  if( op==OP_ParseSchema ){
    /* Any program that uses the OP_ParseSchema opcode needs to lock
    ** all btrees. */
    p->btreeMask = ~(yDbMask)0;
    int j;
    for(j=0; j<p->db->nDb; j++) sqlite3VdbeUsesBtree(p, j);
  }
#ifdef SQLITE_DEBUG
  pOp->zComment = 0;
  if( sqlite3VdbeAddopTrace ) sqlite3VdbePrintOp(0, i, &p->aOp[i]);
#endif
#ifdef VDBE_PROFILE
  pOp->cycles = 0;
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** attached databases that they will be using.  A mask of these databases
** is maintained in p->btreeMask and is used for locking and other purposes.
*/
void sqlite3VdbeUsesBtree(Vdbe *p, int i){
  assert( i>=0 && i<p->db->nDb && i<(int)sizeof(yDbMask)*8 );
  assert( i<(int)sizeof(p->btreeMask)*8 );
  p->btreeMask |= ((yDbMask)1)<<i;
  if( i!=1 && sqlite3BtreeSharable(p->db->aDb[i].pBt) ){
    p->lockMask |= ((yDbMask)1)<<i;
  }
}

#if !defined(SQLITE_OMIT_SHARED_CACHE) && SQLITE_THREADSAFE>0
/*
** If SQLite is compiled to support shared-cache mode and to be threadsafe,
** this routine obtains the mutex associated with each BtShared structure
** that may be accessed by the VM passed as an argument. In doing so it also
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** corresponding to btrees that use shared cache.  Then the runtime of
** this routine is N*N.  But as N is rarely more than 1, this should not
** be a problem.
*/
void sqlite3VdbeEnter(Vdbe *p){
  int i;
  yDbMask mask;
  sqlite3 *db = p->db;
  Db *aDb = db->aDb;
  int nDb = db->nDb;
  sqlite3 *db;
  Db *aDb;
  int nDb;
  if( p->lockMask==0 ) return;  /* The common case */
  db = p->db;
  aDb = db->aDb;
  nDb = db->nDb;
  for(i=0, mask=1; i<nDb; i++, mask += mask){
    if( i!=1 && (mask & p->btreeMask)!=0 && ALWAYS(aDb[i].pBt!=0) ){
    if( i!=1 && (mask & p->lockMask)!=0 && ALWAYS(aDb[i].pBt!=0) ){
      sqlite3BtreeEnter(aDb[i].pBt);
    }
  }
}
#endif

#if !defined(SQLITE_OMIT_SHARED_CACHE) && SQLITE_THREADSAFE>0
/*
** Unlock all of the btrees previously locked by a call to sqlite3VdbeEnter().
*/
void sqlite3VdbeLeave(Vdbe *p){
  int i;
  yDbMask mask;
  sqlite3 *db = p->db;
  Db *aDb = db->aDb;
  int nDb = db->nDb;

  sqlite3 *db;
  Db *aDb;
  int nDb;
  if( p->lockMask==0 ) return;  /* The common case */
  db = p->db;
  aDb = db->aDb;
  nDb = db->nDb;
  for(i=0, mask=1; i<nDb; i++, mask += mask){
    if( i!=1 && (mask & p->btreeMask)!=0 && ALWAYS(aDb[i].pBt!=0) ){
    if( i!=1 && (mask & p->lockMask)!=0 && ALWAYS(aDb[i].pBt!=0) ){
      sqlite3BtreeLeave(aDb[i].pBt);
    }
  }
}
#endif

#if defined(VDBE_PROFILE) || defined(SQLITE_DEBUG)
Added test/attach4.test.
















































































































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# 200 July 1
#
# 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 script is attaching many database files to a single
# connection.
#

set testdir [file dirname $argv0]
source $testdir/tester.tcl

set testprefix attach4

ifcapable !attach {
  finish_test
  return
}

puts "Testing with SQLITE_MAX_ATTACHED=$SQLITE_MAX_ATTACHED"

set files {main test.db}
for {set ii 0} {$ii < $SQLITE_MAX_ATTACHED} {incr ii} {
  lappend files aux$ii "test.db$ii"
}

do_test 1.1 {
  sqlite3_limit db SQLITE_LIMIT_ATTACHED -1
} $SQLITE_MAX_ATTACHED

do_test 1.2.1 {
  db close
  foreach {name f} $files { forcedelete $f }
  sqlite3 db test.db
  
  foreach {name f} $files {
    if {$name == "main"} continue
    execsql "ATTACH '$f' AS $name"
  }

  db eval {PRAGMA database_list} {
    lappend L $name [file tail $file]
  }
  set L
} $files

do_catchsql_test 1.2.2 {
  ATTACH 'x.db' AS next;
} [list 1 "too many attached databases - max $SQLITE_MAX_ATTACHED"]

do_test 1.3 {
  execsql BEGIN;
  foreach {name f} $files {
    execsql "CREATE TABLE $name.tbl(x)"
    execsql "INSERT INTO $name.tbl VALUES('$f')"
  }
  execsql COMMIT;
} {}

do_test 1.4 {
  set L [list]
  foreach {name f} $files {
    lappend L $name [execsql "SELECT x FROM $name.tbl"]
  }
  set L
} $files

set L [list]
set S ""
foreach {name f} $files {
  lappend L wal
  append S "
    PRAGMA $name.journal_mode = WAL;
    UPDATE $name.tbl SET x = '$name';
  "
}
do_execsql_test 1.5 $S $L

do_test 1.6 {
  set L [list]
  foreach {name f} $files {
    lappend L [execsql "SELECT x FROM $name.tbl"] $f
  }
  set L
} $files

do_test 1.7 {
  execsql BEGIN;
  foreach {name f} $files {
    execsql "UPDATE $name.tbl SET x = '$f'"
  }
  execsql COMMIT;
} {}

do_test 1.8 {
  set L [list]
  foreach {name f} $files {
    lappend L $name [execsql "SELECT x FROM $name.tbl"]
  }
  set L
} $files

db close
foreach {name f} $files { forcedelete $f }

finish_test
Changes to test/releasetest.tcl.
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  ########################################################
}

array set ::Configs {
  "Default" {
    -O2
  }
  "Ftrapv" {
    -O2 -ftrapv
    -DSQLITE_MAX_ATTACHED=55
    -DSQLITE_TCL_DEFAULT_FULLMUTEX=1
  }
  "Unlock-Notify" {
    -O2
    -DSQLITE_ENABLE_UNLOCK_NOTIFY
    -DSQLITE_THREADSAFE
    -DSQLITE_TCL_DEFAULT_FULLMUTEX=1
  }
  "Secure-Delete" {
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    -DSQLITE_MAX_LENGTH=2147483645
    -DSQLITE_MAX_VARIABLE_NUMBER=500000
    -DSQLITE_DEBUG=1 
    -DSQLITE_PREFER_PROXY_LOCKING=1
  }
  "Extra-Robustness" {
    -DSQLITE_ENABLE_OVERSIZE_CELL_CHECK=1
    -DSQLITE_MAX_ATTACHED=62
  }
}

array set ::Platforms {
  Linux-x86_64 {
    "Secure-Delete"           test
    "Unlock-Notify"           "QUICKTEST_INCLUDE=notify2.test test"
    "Update-Delete-Limit"     test
    "Debug-One"               test
    "Extra-Robustness"        test
    "Device-Two"              test
    "Ftrapv"                  test
    "Default"                 "threadtest test"
    "Device-One"              fulltest
  }
  Linux-i686 {
    "Unlock-Notify"           "QUICKTEST_INCLUDE=notify2.test test"
    "Device-One"              test
    "Device-Two"              test
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forcedelete test.db test.db2

do_test 8.1 {
  sqlite3 db test.db
  file_control_chunksize_test db main 4096
  file size test.db
} {0}

foreach {tn hint size} {
  1  1000    4096 
  2  1000    4096 
  3  3000    4096 
  4  4096    4096 
  5  4197    8192 
} {
  do_test 8.2.$tn {
    file_control_sizehint_test db main $hint
    file size test.db
  } $size
}

do_test 8.3 {
  db close
  forcedelete test.db test.db2
  sqlite3 db test.db
  file_control_chunksize_test db main 16
  file size test.db
} {0}
foreach {tn hint size} {
  1  5       16 
  2  13      16 
  3  45      48 
  4  48      48 
  5  49      64 
} {
  do_test 8.4.$tn {
    file_control_sizehint_test db main $hint
    file size test.db
  } $size
}

test_syscall reset
finish_test
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    CREATE TABLE t1(x);
    INSERT INTO t1 VALUES(randomblob(5000));
    INSERT INTO t1 SELECT * FROM t1;
    INSERT INTO t1 SELECT * FROM t1;
    INSERT INTO t1 SELECT * FROM t1;
    INSERT INTO t1 SELECT * FROM t1;
  } {wal}
  do_execsql_test 24.2 { 
    DELETE FROM t1;
    PRAGMA wal_checkpoint;
  do_test 24.2 { 
    execsql {
      DELETE FROM t1;
      PRAGMA wal_checkpoint;
  } {0 109 109}
  do_test 24.3 {
    }
    db close
    sqlite3 db test.db
    file exists test.db-wal
  } 0
  do_test 24.4 {
  do_test 24.3 {
    file size test.db
  } [expr 84 * 1024]
  do_test 24.5 {
  do_test 24.4 {
    execsql { 
      PRAGMA incremental_vacuum;
      PRAGMA wal_checkpoint;
    }
    file size test.db
  } [expr 3 * 1024]
  do_test 24.6 {
  do_test 24.5 {
    file size test.db-wal
  } 2128
}

db close
sqlite3_shutdown
test_sqlite3_log
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set rcsid {$Id: omittest.tcl,v 1.8 2008/10/13 15:35:09 drh Exp $}

# Documentation for this script. This may be output to stderr
# if the script is invoked incorrectly.
set ::USAGE_MESSAGE {
This Tcl script is used to test the various compile time options 
available for omitting code (the SQLITE_OMIT_xxx options). It
should be invoked as follows:

    <script> ?-makefile PATH-TO-MAKEFILE? ?-skip_run?
    <script> ?test-symbol? ?-makefile PATH-TO-MAKEFILE? ?-skip_run?

The default value for ::MAKEFILE is "../Makefile.linux.gcc".

If -skip_run option is given then only the compile part is attempted.

This script builds the testfixture program and runs the SQLite test suite
once with each SQLITE_OMIT_ option defined and then once with all options
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# This proc processes the command line options passed to this script.
# Currently the only option supported is "-makefile", default
# "../Makefile.linux-gcc". Set the ::MAKEFILE variable to the value of this
# option.
#
proc process_options {argv} {
  if {$::tcl_platform(platform)=="windows" || $::tcl_platform(platform)=="os2"} {
      set ::MAKEFILE ./Makefile                         ;# Default value
    set ::MAKEFILE ./Makefile               ;# Default value
  } else {
      set ::MAKEFILE ./Makefile.linux-gcc               ;# Default value
    set ::MAKEFILE ./Makefile.linux-gcc     ;# Default value
  }
  set ::SKIP_RUN 0                                      ;# Default to attempt test
  set ::SKIP_RUN 0                          ;# Default to attempt test

  for {set i 0} {$i < [llength $argv]} {incr i} {
    switch -- [lindex $argv $i] {
      -makefile {
        incr i
        set ::MAKEFILE [lindex $argv $i]
      }
  
      -skip_run {
        incr i
        set ::SKIP_RUN 1
      }

      default {
        if {[info exists ::SYMBOL]} {
        puts stderr [string trim $::USAGE_MESSAGE]
        exit -1
          puts stderr [string trim $::USAGE_MESSAGE]
          exit -1
        }
        set ::SYMBOL [lindex $argv $i]
      }
    }
    set ::MAKEFILE [file normalize $::MAKEFILE]
  }
}

# Main routine.
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    SQLITE_ENABLE_UNLOCK_NOTIFY \
    SQLITE_ENABLE_UPDATE_DELETE_LIMIT \
  ]

  # Process any command line options.
  process_options $argv

  if {[info exists ::SYMBOL] } {
    set sym $::SYMBOL

    if {[lsearch $::OMIT_SYMBOLS $sym]<0 && [lsearch $::ENABLE_SYMBOLS $sym]<0} {
      puts stderr "No such symbol: $sym"
      exit -1
    }

    set dirname "test_[string range $sym 7 end]"
    run_quick_test $dirname $sym
  } else {
  # First try a test with all OMIT symbols except SQLITE_OMIT_FLOATING_POINT 
  # and SQLITE_OMIT_PRAGMA defined. The former doesn't work (causes segfaults)
  # and the latter is currently incompatible with the test suite (this should
  # be fixed, but it will be a lot of work).
  set allsyms [list]
  foreach s $::OMIT_SYMBOLS {
    if {$s!="SQLITE_OMIT_FLOATING_POINT" && $s!="SQLITE_OMIT_PRAGMA"} {
      lappend allsyms $s
    }
  }
  run_quick_test test_OMIT_EVERYTHING $allsyms

  # Now try one quick.test with each of the OMIT symbols defined. Included
  # are the OMIT_FLOATING_POINT and OMIT_PRAGMA symbols, even though we
  # know they will fail. It's good to be reminded of this from time to time.
  foreach sym $::OMIT_SYMBOLS {
    set dirname "test_[string range $sym 7 end]"
    run_quick_test $dirname $sym
  }

  # Try the ENABLE/DISABLE symbols one at a time.  
  # We don't do them all at once since some are conflicting.
  foreach sym $::ENABLE_SYMBOLS {
    set dirname "test_[string range $sym 7 end]"
    run_quick_test $dirname $sym
  }
}

    # First try a test with all OMIT symbols except SQLITE_OMIT_FLOATING_POINT 
    # and SQLITE_OMIT_PRAGMA defined. The former doesn't work (causes segfaults)
    # and the latter is currently incompatible with the test suite (this should
    # be fixed, but it will be a lot of work).
    set allsyms [list]
    foreach s $::OMIT_SYMBOLS {
      if {$s!="SQLITE_OMIT_FLOATING_POINT" && $s!="SQLITE_OMIT_PRAGMA"} {
        lappend allsyms $s
      }
    }
    run_quick_test test_OMIT_EVERYTHING $allsyms
  
    # Now try one quick.test with each of the OMIT symbols defined. Included
    # are the OMIT_FLOATING_POINT and OMIT_PRAGMA symbols, even though we
    # know they will fail. It's good to be reminded of this from time to time.
    foreach sym $::OMIT_SYMBOLS {
      set dirname "test_[string range $sym 7 end]"
      run_quick_test $dirname $sym
    }
  
    # Try the ENABLE/DISABLE symbols one at a time.  
    # We don't do them all at once since some are conflicting.
    foreach sym $::ENABLE_SYMBOLS {
      set dirname "test_[string range $sym 7 end]"
      run_quick_test $dirname $sym
    }
  }
}

main $argv