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78 lines
1.6 KiB
Plaintext
78 lines
1.6 KiB
Plaintext
# 2023 May 13
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#
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# The author disclaims copyright to this source code. In place of
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# a legal notice, here is a blessing:
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#
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# May you do good and not evil.
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# May you find forgiveness for yourself and forgive others.
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# May you share freely, never taking more than you give.
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#
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#***********************************************************************
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#
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set testdir [file dirname $argv0]
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source $testdir/tester.tcl
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source $testdir/lock_common.tcl
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if {[run_thread_tests]==0} { finish_test ; return }
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set testprefix thread3
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do_execsql_test 1.0 {
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CREATE TABLE t1(a, b);
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PRAGMA journal_mode = DELETE;
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} {delete}
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proc wait_for_var {varname} {
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if {0==[uplevel [list info exists $varname]]} {
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uplevel [list vwait $varname]
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}
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uplevel [list set $varname]
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}
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set nAttempt 250
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do_test 1.1 {
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for {set i 0} {$i < $nAttempt} {incr i} {
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unset -nocomplain X
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unset -nocomplain Y
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sqlthread spawn X {
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sqlite3 dbI test.db
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dbI timeout 100
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set rc 1
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set nBusy 0
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while {$rc} {
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set rc [catch {
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dbI eval { INSERT INTO t1 VALUES(203, 'message') RETURNING a; }
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} msg]
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if {$rc} { incr nBusy }
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}
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dbI close
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set nBusy
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}
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sqlthread spawn Y {
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sqlite3 dbR test.db
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catch {
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dbR eval { SELECT count(*) FROM t1 }
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} msg
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dbR close
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set msg
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}
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wait_for_var X
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wait_for_var Y
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incr nTotalBusy $X
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}
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execsql { SELECT count(*) FROM t1 }
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set {} {}
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} {}
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do_execsql_test "1.Total BUSY errors: $nTotalBusy .2" {
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SELECT count(*) FROM t1;
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} $nAttempt
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finish_test
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