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    1: # 2008 June 28
    2: #
    3: # The author disclaims copyright to this source code.  In place of
    4: # a legal notice, here is a blessing:
    5: #
    6: #    May you do good and not evil.
    7: #    May you find forgiveness for yourself and forgive others.
    8: #    May you share freely, never taking more than you give.
    9: #
   10: #***********************************************************************
   11: # This file implements regression tests for SQLite library.  The
   12: # focus of this script is database locks.
   13: #
   14: # $Id: lock5.test,v 1.1.1.1 2012/02/21 17:04:16 misho Exp $
   15: 
   16: set testdir [file dirname $argv0]
   17: source $testdir/tester.tcl
   18: 
   19: # This file is only run if using the unix backend compiled with the
   20: # SQLITE_ENABLE_LOCKING_STYLE macro.
   21: db close
   22: if {[catch {sqlite3 db test.db -vfs unix-none} msg]} {
   23:   finish_test
   24:   return
   25: }
   26: db close
   27: forcedelete test.db.lock
   28: 
   29: ifcapable lock_proxy_pragmas {
   30:   set ::using_proxy 0
   31:   foreach {name value} [array get env SQLITE_FORCE_PROXY_LOCKING] {
   32:     set ::using_proxy $value
   33:   }
   34:   # Disable the proxy locking for these tests
   35:   set env(SQLITE_FORCE_PROXY_LOCKING) "0"
   36: }
   37: 
   38: 
   39: do_test lock5-dotfile.1 {
   40:   sqlite3 db test.db -vfs unix-dotfile
   41:   execsql {
   42:     BEGIN;
   43:     CREATE TABLE t1(a, b);
   44:   }
   45: } {}
   46: 
   47: do_test lock5-dotfile.2 {
   48:   file exists test.db.lock
   49: } {1}
   50: 
   51: do_test lock5-dotfile.3 {
   52:   execsql COMMIT
   53:   file exists test.db.lock
   54: } {0}
   55: 
   56: do_test lock5-dotfile.4 {
   57:   sqlite3 db2 test.db -vfs unix-dotfile
   58:   execsql {
   59:     INSERT INTO t1 VALUES('a', 'b');
   60:     SELECT * FROM t1;
   61:   } db2
   62: } {a b}
   63: 
   64: do_test lock5-dotfile.5 {
   65:   execsql {
   66:     BEGIN;
   67:     SELECT * FROM t1;
   68:   } db2
   69: } {a b}
   70: 
   71: do_test lock5-dotfile.6 {
   72:   file exists test.db.lock
   73: } {1}
   74: 
   75: do_test lock5-dotfile.7 {
   76:   catchsql { SELECT * FROM t1; }
   77: } {1 {database is locked}}
   78: 
   79: do_test lock5-dotfile.8 {
   80:   execsql {
   81:     SELECT * FROM t1;
   82:     ROLLBACK;
   83:   } db2
   84: } {a b}
   85: 
   86: do_test lock5-dotfile.9 {
   87:   catchsql { SELECT * FROM t1; }
   88: } {0 {a b}}
   89: 
   90: do_test lock5-dotfile.10 {
   91:   file exists test.db.lock
   92: } {0}
   93: 
   94: do_test lock5-dotfile.X {
   95:   db2 close
   96:   execsql {BEGIN EXCLUSIVE}
   97:   db close
   98:   file exists test.db.lock
   99: } {0}
  100: 
  101: #####################################################################
  102: 
  103: forcedelete test.db
  104: if {[catch {sqlite3 db test.db -vfs unix-flock} msg]} {
  105:   finish_test
  106:   return
  107: }
  108: 
  109: do_test lock5-flock.1 {
  110:   sqlite3 db test.db -vfs unix-flock
  111:   execsql {
  112:     CREATE TABLE t1(a, b);
  113:     BEGIN;
  114:     INSERT INTO t1 VALUES(1, 2);
  115:   }
  116: } {}
  117: 
  118: # Make sure we are not accidentally using the dotfile locking scheme.
  119: do_test lock5-flock.2 {
  120:   file exists test.db.lock
  121: } {0}
  122: 
  123: do_test lock5-flock.3 {
  124:   catch { sqlite3 db2 test.db -vfs unix-flock }
  125:   catchsql { SELECT * FROM t1 } db2
  126: } {1 {database is locked}}
  127: 
  128: do_test lock5-flock.4 {
  129:   execsql COMMIT
  130:   catchsql { SELECT * FROM t1 } db2
  131: } {0 {1 2}}
  132: 
  133: do_test lock5-flock.5 {
  134:   execsql BEGIN
  135:   catchsql { SELECT * FROM t1 } db2
  136: } {0 {1 2}}
  137: 
  138: do_test lock5-flock.6 {
  139:   execsql {SELECT * FROM t1}
  140:   catchsql { SELECT * FROM t1 } db2
  141: } {1 {database is locked}}
  142: 
  143: do_test lock5-flock.7 {
  144:   db close
  145:   catchsql { SELECT * FROM t1 } db2
  146: } {0 {1 2}}
  147: 
  148: do_test lock5-flock.8 {
  149:   db2 close
  150: } {}
  151: 
  152: #####################################################################
  153: 
  154: do_test lock5-none.1 {
  155:   sqlite3 db test.db -vfs unix-none
  156:   sqlite3 db2 test.db -vfs unix-none
  157:   execsql {
  158:     BEGIN;
  159:     INSERT INTO t1 VALUES(3, 4);
  160:   }
  161: } {}
  162: do_test lock5-none.2 {
  163:   execsql { SELECT * FROM t1 }
  164: } {1 2 3 4}
  165: do_test lock5-flock.3 {
  166:   execsql { SELECT * FROM t1 } db2
  167: } {1 2}
  168: do_test lock5-none.4 {
  169:   execsql { 
  170:     BEGIN;
  171:     SELECT * FROM t1;
  172:   } db2
  173: } {1 2}
  174: do_test lock5-none.5 {
  175:   execsql COMMIT
  176:   execsql {SELECT * FROM t1} db2
  177: } {1 2}
  178: 
  179: ifcapable memorymanage {
  180:   do_test lock5-none.6 {
  181:     sqlite3_release_memory 1000000
  182:     execsql {SELECT * FROM t1} db2
  183:   } {1 2 3 4}
  184: }
  185: 
  186: do_test lock5-flock.X {
  187:   db close
  188:   db2 close
  189: } {}
  190: 
  191: ifcapable lock_proxy_pragmas {
  192:   set env(SQLITE_FORCE_PROXY_LOCKING) $::using_proxy
  193: }
  194: 
  195: finish_test