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authorJesse Morgan <jesse@jesterpm.net>2016-12-17 21:28:53 -0800
committerJesse Morgan <jesse@jesterpm.net>2016-12-17 21:28:53 -0800
commit54df2afaa61c6a03cbb4a33c9b90fa572b6d07b8 (patch)
tree18147b92b969d25ffbe61935fb63035cac820dd0 /db-4.8.30/test/txn014.tcl
Berkeley DB 4.8 with rust build script for linux.
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+# See the file LICENSE for redistribution information.
+#
+# Copyright (c) 2005-2009 Oracle. All rights reserved.
+#
+# $Id$
+#
+# TEST txn014
+# TEST Test of parent and child txns working on the same database.
+# TEST A txn that will become a parent create a database.
+# TEST A txn that will not become a parent creates another database.
+# TEST Start a child txn of the 1st txn.
+# TEST Verify that the parent txn is disabled while child is open.
+# TEST 1. Child reads contents with child handle (should succeed).
+# TEST 2. Child reads contents with parent handle (should succeed).
+# TEST Verify that the non-parent txn can read from its database,
+# TEST and that the child txn cannot.
+# TEST Return to the child txn.
+# TEST 3. Child writes with child handle (should succeed).
+# TEST 4. Child writes with parent handle (should succeed).
+# TEST
+# TEST Commit the child, verify that the parent can write again.
+# TEST Check contents of database with a second child.
+proc txn014 { } {
+ source ./include.tcl
+ global default_pagesize
+
+ set page_size $default_pagesize
+ # If the page size is very small, we increase page size,
+ # so we won't run out of lockers.
+ if { $page_size < 2048 } {
+ set page_size 2048
+ }
+ set tnum "014"
+ puts "Txn$tnum: Test use of parent and child txns."
+ set parentfile test$tnum.db
+ set nonparentfile test$tnum.db.2
+ set method "-btree"
+
+ # Use 5000 entries so there will be new items on the wordlist
+ # when we double nentries in part h.
+ set nentries 5000
+
+ env_cleanup $testdir
+
+ puts "\tTxn$tnum.a: Create environment."
+ set eflags "-create -mode 0644 -txn -home $testdir"
+ set env [eval {berkdb_env_noerr} $eflags]
+ error_check_good env [is_valid_env $env] TRUE
+
+ # Open a database with parent txn and populate. We populate
+ # before starting up the child txn, because the only allowed
+ # Berkeley DB calls for a parent txn are beginning child txns,
+ # committing, or aborting.
+
+ puts "\tTxn$tnum.b: Start parent txn and open database."
+ set parent [$env txn]
+ error_check_good parent_begin [is_valid_txn $parent $env] TRUE
+ set db [berkdb_open_noerr -pagesize $page_size \
+ -env $env -txn $parent -create $method $parentfile]
+ populate $db $method $parent $nentries 0 0
+
+ puts "\tTxn$tnum.c: Start non-parent txn and open database."
+ set nonparent [$env txn]
+ error_check_good nonparent_begin [is_valid_txn $nonparent $env] TRUE
+ set db2 [berkdb_open_noerr -pagesize $page_size \
+ -env $env -txn $nonparent -create $method $nonparentfile]
+ populate $db2 $method $nonparent $nentries 0 0
+
+ # Start child txn and open database. Parent txn is not yet
+ # committed, but the child should be able to read what's there.
+ # The child txn should also be able to use the parent txn.
+
+ puts "\tTxn$tnum.d: Start child txn."
+ set child [$env txn -parent $parent]
+
+ puts "\tTxn$tnum.e: Verify parent is disabled."
+ catch {$db put -txn $parent a a} ret
+ error_check_good \
+ parent_disabled [is_substr $ret "Child transaction is active"] 1
+
+ puts "\tTxn$tnum.f: Get a handle on parent's database using child txn."
+ set childdb [berkdb_open_noerr -pagesize $page_size \
+ -env $env -txn $child $method $parentfile]
+
+ puts "\tTxn$tnum.g: Read database with child txn/child handle,"
+ puts "\tTxn$tnum.g: and with child txn/parent handle."
+ set did [open $dict]
+ set count 0
+ while { [gets $did str] != -1 && $count < $nentries } {
+ set key $str
+
+ # First use child's handle.
+ set ret [$childdb get -txn $child $key]
+ error_check_good \
+ get $ret [list [list $key [pad_data $method $str]]]
+
+ # Have the child use the parent's handle.
+ set ret [$db get -txn $child $key]
+ error_check_good \
+ get $ret [list [list $key [pad_data $method $str]]]
+ incr count
+ }
+ close $did
+
+ # Read the last key from the non-parent database, then try
+ # to read the same key using the child txn. It will fail.
+ puts "\tTxn$tnum.h: Child cannot read data from non-parent."
+ set ret [$db2 get -txn $nonparent $key]
+
+ # Check the return against $key, because $str has gone on to
+ # the next item in the wordlist.
+ error_check_good \
+ np_get $ret [list [list $key [pad_data $method $key]]]
+ catch {$db2 get -txn $child $key} ret
+ error_check_good \
+ child_np_get [is_substr $ret "is still active"] 1
+
+ # The child should also be able to update the database, using
+ # either handle.
+ puts "\tTxn$tnum.i: Write to database with child txn & child handle."
+ populate $childdb $method $child $nentries 0 0
+ puts "\tTxn$tnum.j: Write to database with child txn & parent handle."
+ populate $db $method $child $nentries 0 0
+
+ puts "\tTxn$tnum.k: Commit child, freeing parent."
+ error_check_good child_commit [$child commit] 0
+ error_check_good childdb_close [$childdb close] 0
+
+ puts "\tTxn$tnum.l: Add more entries to db using parent txn."
+ set nentries [expr $nentries * 2]
+ populate $db $method $parent $nentries 0 0
+
+ puts "\tTxn$tnum.m: Start new child txn and read database."
+ set child2 [$env txn -parent $parent]
+ set child2db [berkdb_open_noerr -pagesize $page_size \
+ -env $env -txn $child2 $method $parentfile]
+
+ set did [open $dict]
+ set count 0
+ while { [gets $did str] != -1 && $count < $nentries } {
+ set key $str
+ set ret [$child2db get -txn $child2 $key]
+ error_check_good \
+ get $ret [list [list $key [pad_data $method $str]]] 1
+ incr count
+ }
+ close $did
+
+ puts "\tTxn$tnum.n: Clean up."
+ error_check_good child2_commit [$child2 commit] 0
+ error_check_good nonparent_commit [$nonparent commit] 0
+ error_check_good parent_commit [$parent commit] 0
+ error_check_good db_close [$db close] 0
+ error_check_good db2_close [$db2 close] 0
+ error_check_good childdb_close [$child2db close] 0
+ error_check_good env_close [$env close] 0
+}
+