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| 1 # 2008 October 6 |
| 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: lock6.test,v 1.3 2009/02/05 16:31:46 drh Exp $ |
| 15 |
| 16 |
| 17 set testdir [file dirname $argv0] |
| 18 source $testdir/tester.tcl |
| 19 |
| 20 # Launch another testfixture process to be controlled by this one. A |
| 21 # channel name is returned that may be passed as the first argument to proc |
| 22 # 'testfixture' to execute a command. The child testfixture process is shut |
| 23 # down by closing the channel. |
| 24 proc launch_testfixture {} { |
| 25 set prg [info nameofexec] |
| 26 if {$prg eq ""} { |
| 27 set prg [file join . testfixture] |
| 28 } |
| 29 set chan [open "|$prg tf_main2.tcl" r+] |
| 30 fconfigure $chan -buffering line |
| 31 return $chan |
| 32 } |
| 33 |
| 34 # Execute a command in a child testfixture process, connected by two-way |
| 35 # channel $chan. Return the result of the command, or an error message. |
| 36 proc testfixture {chan cmd} { |
| 37 puts $chan $cmd |
| 38 puts $chan OVER |
| 39 set r "" |
| 40 while { 1 } { |
| 41 set line [gets $chan] |
| 42 if { $line == "OVER" } { |
| 43 return $r |
| 44 } |
| 45 append r $line |
| 46 } |
| 47 } |
| 48 |
| 49 # Write the main loop for the child testfixture processes into file |
| 50 # tf_main2.tcl. The parent (this script) interacts with the child processes |
| 51 # via a two way pipe. The parent writes a script to the stdin of the child |
| 52 # process, followed by the word "OVER" on a line of its own. The child |
| 53 # process evaluates the script and writes the results to stdout, followed |
| 54 # by an "OVER" of its own. |
| 55 set f [open tf_main2.tcl w] |
| 56 puts $f { |
| 57 set l [open log w] |
| 58 set script "" |
| 59 while {![eof stdin]} { |
| 60 flush stdout |
| 61 set line [gets stdin] |
| 62 puts $l "READ $line" |
| 63 if { $line == "OVER" } { |
| 64 catch {eval $script} result |
| 65 puts $result |
| 66 puts $l "WRITE $result" |
| 67 puts OVER |
| 68 puts $l "WRITE OVER" |
| 69 flush stdout |
| 70 set script "" |
| 71 } else { |
| 72 append script $line |
| 73 append script " ; " |
| 74 } |
| 75 } |
| 76 close $l |
| 77 } |
| 78 close $f |
| 79 |
| 80 |
| 81 ifcapable lock_proxy_pragmas&&prefer_proxy_locking { |
| 82 set sqlite_hostid_num 1 |
| 83 |
| 84 set using_proxy 0 |
| 85 foreach {name value} [array get env SQLITE_FORCE_PROXY_LOCKING] { |
| 86 set using_proxy $value |
| 87 } |
| 88 |
| 89 # Test the lock_proxy_file pragmas. |
| 90 # |
| 91 set env(SQLITE_FORCE_PROXY_LOCKING) "1" |
| 92 |
| 93 do_test lock6-1.1 { |
| 94 set ::tf1 [launch_testfixture] |
| 95 testfixture $::tf1 "sqlite3_test_control_pending_byte $::sqlite_pending_byte
" |
| 96 testfixture $::tf1 { |
| 97 set sqlite_hostid_num 2 |
| 98 sqlite3 db test.db -key xyzzy |
| 99 set lockpath [db eval { |
| 100 PRAGMA lock_proxy_file=":auto:"; |
| 101 select * from sqlite_master; |
| 102 PRAGMA lock_proxy_file; |
| 103 }] |
| 104 string match "*test.db:auto:" $lockpath |
| 105 } |
| 106 } {1} |
| 107 |
| 108 set sqlite_hostid_num 3 |
| 109 do_test lock6-1.2 { |
| 110 execsql {pragma lock_status} |
| 111 } {main unlocked temp closed} |
| 112 |
| 113 sqlite3_soft_heap_limit 0 |
| 114 do_test lock6-1.3 { |
| 115 list [catch { |
| 116 sqlite3 db test.db |
| 117 execsql { select * from sqlite_master } |
| 118 } msg] $msg |
| 119 } {1 {database is locked}} |
| 120 |
| 121 do_test lock6-1.4 { |
| 122 set lockpath [execsql { |
| 123 PRAGMA lock_proxy_file=":auto:"; |
| 124 PRAGMA lock_proxy_file; |
| 125 } db] |
| 126 set lockpath |
| 127 } {{:auto: (not held)}} |
| 128 |
| 129 do_test lock6-1.4.1 { |
| 130 catchsql { |
| 131 PRAGMA lock_proxy_file="notmine"; |
| 132 select * from sqlite_master; |
| 133 } db |
| 134 } {1 {database is locked}} |
| 135 |
| 136 do_test lock6-1.4.2 { |
| 137 execsql { |
| 138 PRAGMA lock_proxy_file; |
| 139 } db |
| 140 } {notmine} |
| 141 |
| 142 do_test lock6-1.5 { |
| 143 testfixture $::tf1 { |
| 144 db eval { |
| 145 BEGIN; |
| 146 SELECT * FROM sqlite_master; |
| 147 } |
| 148 } |
| 149 } {} |
| 150 |
| 151 catch {testfixture $::tf1 {db close}} |
| 152 |
| 153 do_test lock6-1.6 { |
| 154 execsql { |
| 155 PRAGMA lock_proxy_file="mine"; |
| 156 select * from sqlite_master; |
| 157 } db |
| 158 } {} |
| 159 |
| 160 catch {close $::tf1} |
| 161 set env(SQLITE_FORCE_PROXY_LOCKING) $using_proxy |
| 162 set sqlite_hostid_num 0 |
| 163 |
| 164 sqlite3_soft_heap_limit $cmdlinearg(soft-heap-limit) |
| 165 } |
| 166 |
| 167 finish_test |
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