wasCSharpSQLite – Blame information for rev 7
?pathlinks?
Rev | Author | Line No. | Line |
---|---|---|---|
1 | office | 1 | # 2010 April 14
|
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 contains code used by several different test scripts. The
|
||
12 | # code in this file allows testfixture to control another process (or
|
||
13 | # processes) to test locking.
|
||
14 | #
|
||
15 | |||
16 | proc do_multiclient_test {varname script} { |
||
17 | |||
18 | foreach code [list { |
||
19 | if {[info exists ::G(valgrind)]} { db close ; continue } |
||
20 | set ::code2_chan [launch_testfixture] |
||
21 | set ::code3_chan [launch_testfixture] |
||
22 | proc code2 {tcl} { testfixture $::code2_chan $tcl } |
||
23 | proc code3 {tcl} { testfixture $::code3_chan $tcl } |
||
24 | set tn 1 |
||
25 | } { |
||
26 | proc code2 {tcl} { uplevel #0 $tcl }
|
||
27 | proc code3 {tcl} { uplevel #0 $tcl }
|
||
28 | set tn 2 |
||
29 | }] { |
||
30 | faultsim_delete_and_reopen |
||
31 | |||
32 | proc code1 {tcl} { uplevel #0 $tcl }
|
||
33 | |||
34 | # Open connections [db2] and [db3]. Depending on which iteration this
|
||
35 | # is, the connections may be created in this interpreter, or in
|
||
36 | # interpreters running in other OS processes. As such, the [db2] and [db3]
|
||
37 | # commands should only be accessed within [code2] and [code3] blocks,
|
||
38 | # respectively.
|
||
39 | #
|
||
40 | eval $code |
||
41 | code2 { sqlite3 db2 test.db } |
||
42 | code3 { sqlite3 db3 test.db } |
||
43 | |||
44 | # Shorthand commands. Execute SQL using database connection [db2] or
|
||
45 | # [db3]. Return the results.
|
||
46 | #
|
||
47 | proc sql1 {sql} { db eval $sql } |
||
48 | proc sql2 {sql} { code2 [list db2 eval $sql] } |
||
49 | proc sql3 {sql} { code3 [list db3 eval $sql] } |
||
50 | |||
51 | proc csql1 {sql} { list [catch { sql1 $sql } msg] $msg } |
||
52 | proc csql2 {sql} { list [catch { sql2 $sql } msg] $msg } |
||
53 | proc csql3 {sql} { list [catch { sql3 $sql } msg] $msg } |
||
54 | |||
55 | uplevel set $varname $tn |
||
56 | uplevel $script |
||
57 | |||
58 | catch { code2 { db2 close } } |
||
59 | catch { code3 { db3 close } } |
||
60 | catch { close $::code2_chan } |
||
61 | catch { close $::code3_chan } |
||
62 | catch { db close } |
||
63 | } |
||
64 | } |
||
65 | |||
66 | # Launch another testfixture process to be controlled by this one. A
|
||
67 | # channel name is returned that may be passed as the first argument to proc
|
||
68 | # 'testfixture' to execute a command. The child testfixture process is shut
|
||
69 | # down by closing the channel.
|
||
70 | proc launch_testfixture {{prg ""}} { |
||
71 | write_main_loop |
||
72 | if {$prg eq ""} { set prg [info nameofexec] } |
||
73 | if {$prg eq ""} { set prg testfixture } |
||
74 | if {[file tail $prg]==$prg} { set prg [file join . $prg] } |
||
75 | set chan [open "|$prg tf_main.tcl" r+] |
||
76 | fconfigure $chan -buffering line |
||
77 | set rc [catch { |
||
78 | testfixture $chan "sqlite3_test_control_pending_byte $::sqlite_pending_byte" |
||
79 | }] |
||
80 | if {$rc} { |
||
81 | testfixture $chan "set ::sqlite_pending_byte $::sqlite_pending_byte" |
||
82 | } |
||
83 | return $chan |
||
84 | } |
||
85 | |||
86 | # Execute a command in a child testfixture process, connected by two-way
|
||
87 | # channel $chan. Return the result of the command, or an error message.
|
||
88 | #
|
||
89 | proc testfixture {chan cmd} { |
||
90 | puts $chan $cmd |
||
91 | puts $chan OVER |
||
92 | set r "" |
||
93 | while { 1 } { |
||
94 | set line [gets $chan] |
||
95 | if { $line == "OVER" } { |
||
96 | set res [lindex $r 1] |
||
97 | if { [lindex $r 0] } { error $res } |
||
98 | return $res |
||
99 | } |
||
100 | if {[eof $chan]} { |
||
101 | return "ERROR: Child process hung up" |
||
102 | } |
||
103 | append r $line |
||
104 | } |
||
105 | } |
||
106 | |||
107 | proc testfixture_nb_cb {varname chan} { |
||
108 | if {[eof $chan]} { |
||
109 | append ::tfnb($chan) "ERROR: Child process hung up" |
||
110 | set line "OVER" |
||
111 | } else { |
||
112 | set line [gets $chan] |
||
113 | } |
||
114 | |||
115 | if { $line == "OVER" } { |
||
116 | set $varname [lindex $::tfnb($chan) 1] |
||
117 | unset ::tfnb($chan) |
||
118 | close $chan |
||
119 | } else { |
||
120 | append ::tfnb($chan) $line |
||
121 | } |
||
122 | } |
||
123 | |||
124 | proc testfixture_nb {varname cmd} { |
||
125 | set chan [launch_testfixture] |
||
126 | set ::tfnb($chan) "" |
||
127 | fconfigure $chan -blocking 0 -buffering none |
||
128 | puts $chan $cmd |
||
129 | puts $chan OVER |
||
130 | fileevent $chan readable [list testfixture_nb_cb $varname $chan] |
||
131 | return "" |
||
132 | } |
||
133 | |||
134 | # Write the main loop for the child testfixture processes into file
|
||
135 | # tf_main.tcl. The parent (this script) interacts with the child processes
|
||
136 | # via a two way pipe. The parent writes a script to the stdin of the child
|
||
137 | # process, followed by the word "OVER" on a line of its own. The child
|
||
138 | # process evaluates the script and writes the results to stdout, followed
|
||
139 | # by an "OVER" of its own.
|
||
140 | #
|
||
141 | set main_loop_written 0 |
||
142 | proc write_main_loop {} { |
||
143 | if {$::main_loop_written} return |
||
144 | set wrapper "" |
||
145 | if {[sqlite3 -has-codec] && [info exists ::do_not_use_codec]==0} { |
||
146 | set wrapper "
|
||
147 | rename sqlite3 sqlite_orig
|
||
148 | proc sqlite3 {args} {[info body sqlite3]}
|
||
149 | " |
||
150 | } |
||
151 | |||
152 | set fd [open tf_main.tcl w] |
||
153 | puts $fd [string map [list %WRAPPER% $wrapper] { |
||
154 | %WRAPPER% |
||
155 | set script "" |
||
156 | while {![eof stdin]} { |
||
157 | flush stdout |
||
158 | set line [gets stdin] |
||
159 | if { $line == "OVER" } { |
||
160 | set rc [catch {eval $script} result] |
||
161 | puts [list $rc $result] |
||
162 | puts OVER |
||
163 | flush stdout |
||
164 | set script "" |
||
165 | } else { |
||
166 | append script $line |
||
167 | append script "\n" |
||
168 | } |
||
169 | } |
||
170 | }] |
||
171 | close $fd |
||
172 | set main_loop_written 1 |
||
173 | } |
||
174 |