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Overview
Comment:On *BSD systems, reduce the number of open connections used by wal3.test to avoid running out of file-descriptors.
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SHA1: 0a3cba95a14ae7a24b2d268567a02d651ab278dc
User & Date: dan 2010-11-29 18:22:44
Context
2010-11-29
18:36
Fix a warning in os_unix.c. check-in: ee8dc8c8 user: dan tags: trunk
18:22
On *BSD systems, reduce the number of open connections used by wal3.test to avoid running out of file-descriptors. check-in: 0a3cba95 user: dan tags: trunk
17:55
Fix compiler warnings discovered while building SQLite on http://www.devio.us/. check-in: 5602ec95 user: dan tags: trunk
Changes
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Changes to test/wal3.test.

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# transaction.
#
# This test case verifies that if an exclusive lock cannot be obtained
# on any aReadMark[] slot (because there are already several readers),
# the client takes a shared-lock on a slot without modifying the value
# and continues.
#


do_test wal3-9.0 {
  file delete -force test.db test.db-journal test.db wal
  sqlite3 db test.db
  execsql {
    PRAGMA page_size = 1024;
    PRAGMA journal_mode = WAL;
    CREATE TABLE whoami(x);
    INSERT INTO whoami VALUES('nobody');
  }
} {wal}
for {set i 0} {$i < 50} {incr i} {
  set c db$i
  do_test wal3-9.1.$i {
    sqlite3 $c test.db
    execsql { UPDATE whoami SET x = $c }
    execsql {
      BEGIN;
      SELECT * FROM whoami
    } $c
  } $c
}
for {set i 0} {$i < 50} {incr i} {
  set c db$i
  do_test wal3-9.2.$i {
    execsql { SELECT * FROM whoami } $c
  } $c
}

set sz [expr 1024 * (2+$AUTOVACUUM)]
do_test wal3-9.3 {
  for {set i 0} {$i < 49} {incr i} { db$i close }
  execsql { PRAGMA wal_checkpoint } 
  byte_is_zero test.db [expr $sz-1024]
} {1}
do_test wal3-9.4 {
  db49 close
  execsql { PRAGMA wal_checkpoint } 
  set sz2 [file size test.db]
  byte_is_zero test.db [expr $sz-1024]
} {0}

do_multiclient_test tn {
  do_test wal3-10.$tn.1 {







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# transaction.
#
# This test case verifies that if an exclusive lock cannot be obtained
# on any aReadMark[] slot (because there are already several readers),
# the client takes a shared-lock on a slot without modifying the value
# and continues.
#
set nConn 50
if { [string match *BSD $tcl_platform(os)] } { set nConn 35 }
do_test wal3-9.0 {
  file delete -force test.db test.db-journal test.db wal
  sqlite3 db test.db
  execsql {
    PRAGMA page_size = 1024;
    PRAGMA journal_mode = WAL;
    CREATE TABLE whoami(x);
    INSERT INTO whoami VALUES('nobody');
  }
} {wal}
for {set i 0} {$i < $nConn} {incr i} {
  set c db$i
  do_test wal3-9.1.$i {
    sqlite3 $c test.db
    execsql { UPDATE whoami SET x = $c }
    execsql {
      BEGIN;
      SELECT * FROM whoami
    } $c
  } $c
}
for {set i 0} {$i < $nConn} {incr i} {
  set c db$i
  do_test wal3-9.2.$i {
    execsql { SELECT * FROM whoami } $c
  } $c
}

set sz [expr 1024 * (2+$AUTOVACUUM)]
do_test wal3-9.3 {
  for {set i 0} {$i < ($nConn-1)} {incr i} { db$i close }
  execsql { PRAGMA wal_checkpoint } 
  byte_is_zero test.db [expr $sz-1024]
} {1}
do_test wal3-9.4 {
  db[expr $nConn-1] close
  execsql { PRAGMA wal_checkpoint } 
  set sz2 [file size test.db]
  byte_is_zero test.db [expr $sz-1024]
} {0}

do_multiclient_test tn {
  do_test wal3-10.$tn.1 {