wasCSharpSQLite – Blame information for rev
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1 | office | 1 | # 2009 July 2 |
2 | # |
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3 | # The author disclaims copyright to this source code. In place of |
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4 | # a legal notice, here is a blessing: |
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5 | # |
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6 | # May you do good and not evil. |
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7 | # May you find forgiveness for yourself and forgive others. |
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8 | # May you share freely, never taking more than you give. |
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9 | # |
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10 | #*********************************************************************** |
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11 | # |
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12 | # $Id: sharedlock.test,v 1.1 2009/07/02 17:21:58 danielk1977 Exp $ |
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13 | |||
14 | set testdir [file dirname $argv0] |
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15 | source $testdir/tester.tcl |
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16 | db close |
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17 | |||
18 | ifcapable !shared_cache { |
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19 | finish_test |
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20 | return |
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21 | } |
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22 | |||
23 | set ::enable_shared_cache [sqlite3_enable_shared_cache 1] |
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24 | sqlite3 db test.db |
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25 | sqlite3 db2 test.db |
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26 | |||
27 | do_test sharedlock-1.1 { |
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28 | execsql { |
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29 | CREATE TABLE t1(a, b); |
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30 | INSERT INTO t1 VALUES(1, 'one'); |
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31 | INSERT INTO t1 VALUES(2, 'two'); |
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32 | } |
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33 | } {} |
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34 | |||
35 | do_test sharedlock-1.2 { |
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36 | set res [list] |
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37 | db eval { SELECT * FROM t1 ORDER BY rowid } { |
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38 | lappend res $a $b |
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39 | if {$a == 1} { catch { db eval "INSERT INTO t1 VALUES(3, 'three')" } } |
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40 | |||
41 | # This should fail. Connection [db] has a read-lock on t1, which should |
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42 | # prevent connection [db2] from obtaining the write-lock it needs to |
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43 | # modify t1. At one point there was a bug causing the previous INSERT |
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44 | # to drop the read-lock belonging to [db]. |
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45 | if {$a == 2} { catch { db2 eval "INSERT INTO t1 VALUES(4, 'four')" } } |
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46 | } |
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47 | set res |
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48 | } {1 one 2 two 3 three} |
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49 | |||
50 | db close |
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51 | db2 close |
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52 | |||
53 | sqlite3_enable_shared_cache $::enable_shared_cache |
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54 | finish_test |
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55 |