# 2007 September 10
#
# The author disclaims copyright to this source code. In place of
# a legal notice, here is a blessing:
#
# May you do good and not evil.
# May you find forgiveness for yourself and forgive others.
# May you share freely, never taking more than you give.
#
#***********************************************************************
#
# $Id: thread_common.tcl,v 1.4 2009/03/17 15:39:31 drh Exp $
set testdir [file dirname $argv0]
source $testdir/tester.tcl
if {[info commands sqlthread] eq ""} {
puts -nonewline "Skipping thread-safety tests - "
puts " not running a threadsafe sqlite/tcl build"
puts -nonewline "Both SQLITE_THREADSAFE and TCL_THREADS must be defined when"
puts " building testfixture"
finish_test
return
}
# The following script is sourced by every thread spawned using
# [sqlthread spawn]:
set thread_procs {
# Execute the supplied SQL using database handle $::DB.
#
proc execsql {sql} {
set rc SQLITE_LOCKED
while {$rc eq "SQLITE_LOCKED"
|| $rc eq "SQLITE_BUSY"
|| $rc eq "SQLITE_SCHEMA"} {
set res [list]
enter_db_mutex $::DB
set err [catch {
set ::STMT [sqlite3_prepare_v2 $::DB $sql -1 dummy_tail]
} msg]
if {$err == 0} {
while {[set rc [sqlite3_step $::STMT]] eq "SQLITE_ROW"} {
for {set i 0} {$i < [sqlite3_column_count $::STMT]} {incr i} {
lappend res [sqlite3_column_text $::STMT 0]
}
}
set rc [sqlite3_finalize $::STMT]
} else {
if {[lindex $msg 0]=="(6)"} {
set rc SQLITE_LOCKED
} else {
set rc SQLITE_ERROR
}
}
if {[string first locked [sqlite3_errmsg $::DB]]>=0} {
set rc SQLITE_LOCKED
}
if {$rc ne "SQLITE_OK"} {
set errtxt "$rc - [sqlite3_errmsg $::DB] (debug1)"
}
leave_db_mutex $::DB
if {$rc eq "SQLITE_LOCKED" || $rc eq "SQLITE_BUSY"} {
#sqlthread parent "puts \"thread [sqlthread id] is busy. rc=$rc\""
after 200
} else {
#sqlthread parent "puts \"thread [sqlthread id] ran $sql\""
}
}
if {$rc ne "SQLITE_OK"} {
error $errtxt
}
set res
}
proc do_test {name script result} {
set res [eval $script]
if {$res ne $result} {
error "$name failed: expected \"$result\" got \"$res\""
}
}
}
proc thread_spawn {varname args} {
sqlthread spawn $varname [join $args ;]
}
return 0