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SQLite training in Houston TX on 2019-11-05 (details)
Part of the 2019 Tcl Conference

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Overview
Comment:Add locks to the in-memory backend so that recursive writes will be detected and rejected. Ticket #436. (CVS 1089)
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Timelines: family | ancestors | descendants | both | trunk
Files: files | file ages | folders
SHA1: 3403d28a49b27d3059d3d399ca057e8d33eb857a
User & Date: drh 2003-08-27 22:54:32
Context
2003-08-27
22:57
CVS missed a commit (because I pressed Ctrl-C in the middle). This extra commit will hopefully help clear things up. (CVS 1091) check-in: 522c2efe user: drh tags: trunk
22:54
Add locks to the in-memory backend so that recursive writes will be detected and rejected. Ticket #436. (CVS 1089) check-in: 3403d28a user: drh tags: trunk
22:52
Add locks to the in-memory database so that recursive writes will be detected and rejected. Ticket #436. (CVS 1090) check-in: 966b1a16 user: drh tags: trunk
Changes
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Changes to test/misc2.test.

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#
#***********************************************************************
# This file implements regression tests for SQLite library.
#
# This file implements tests for miscellanous features that were
# left out of other test files.
#
# $Id: misc2.test,v 1.7 2003/08/26 11:25:58 drh Exp $

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

# Test for ticket #360
#
do_test misc2-1.1 {
................................................................................
  sqlite db {}
  execsql {
    CREATE TABLE t1(a,b);
    INSERT INTO t1 VALUES(1,2);
    SELECT * FROM t1;
  }
} {1 2}


























































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#
#***********************************************************************
# This file implements regression tests for SQLite library.
#
# This file implements tests for miscellanous features that were
# left out of other test files.
#
# $Id: misc2.test,v 1.8 2003/08/27 22:54:32 drh Exp $

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

# Test for ticket #360
#
do_test misc2-1.1 {
................................................................................
  sqlite db {}
  execsql {
    CREATE TABLE t1(a,b);
    INSERT INTO t1 VALUES(1,2);
    SELECT * FROM t1;
  }
} {1 2}

# Make sure we get an error message (not a segfault) on an attempt to
# update a table from within the callback of a select on that same
# table.
#
do_test misc2-7.1 {
  db close
  file delete -force test.db
  sqlite db test.db
  execsql {
    CREATE TABLE t1(x);
    INSERT INTO t1 VALUES(1);
  }
  set rc [catch {
    db eval {SELECT rowid FROM t1} {} {
      db eval "DELETE FROM t1 WHERE rowid=$rowid"
    }
  } msg]
  lappend rc $msg
} {1 {database table is locked}}
do_test misc2-7.2 {
  set rc [catch {
    db eval {SELECT rowid FROM t1} {} {
      db eval "INSERT INTO t1 VALUES(3)"
    }
  } msg]
  lappend rc $msg
} {1 {database table is locked}}
do_test misc2-7.3 {
  db close
  file delete -force test.db
  sqlite db :memory:
  execsql {
    CREATE TABLE t1(x);
    INSERT INTO t1 VALUES(1);
  }
  set rc [catch {
    db eval {SELECT rowid FROM t1} {} {
      db eval "DELETE FROM t1 WHERE rowid=$rowid"
    }
  } msg]
  lappend rc $msg
} {1 {database table is locked}}
do_test misc2-7.4 {
  set rc [catch {
    db eval {SELECT rowid FROM t1} {} {
      db eval "INSERT INTO t1 VALUES(3)"
    }
  } msg]
  lappend rc $msg
} {1 {database table is locked}}