wasCSharpSQLite – Blame information for rev
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| Rev | Author | Line No. | Line |
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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 |