Adding upstream version 1.37.0.
Signed-off-by: Daniel Baumann <daniel@debian.org>
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201
testdata/tcl/walprotocol.test
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testdata/tcl/walprotocol.test
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# 2016 February 4
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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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# This file implements regression tests for SQLite library. The
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# focus of this file is testing the operation of the library in
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# "PRAGMA journal_mode=WAL" mode.
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#
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# More specifically, it tests "locking protocol" errors - errors that
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# may be caused if one or more SQLite clients does not follow the expected
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# locking protocol when accessing a wal-mode database. These tests take
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# quite a while to run.
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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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source $testdir/wal_common.tcl
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ifcapable !wal {finish_test ; return }
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set testprefix walprotocol
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#-------------------------------------------------------------------------
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# When recovering the contents of a WAL file, a process obtains the WRITER
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# lock, then locks all other bytes before commencing recovery. If it fails
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# to lock all other bytes (because some other process is holding a read
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# lock) it should retry up to 100 times. Then return SQLITE_PROTOCOL to the
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# caller. Test this (test case 1.3).
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#
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# Also test the effect of hitting an SQLITE_BUSY while attempting to obtain
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# the WRITER lock (should be the same). Test case 1.4.
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#
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do_execsql_test 1.0 {
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PRAGMA journal_mode = wal;
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CREATE TABLE x(y);
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INSERT INTO x VALUES('z');
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} {wal}
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proc lock_callback {method filename handle lock} {
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lappend ::locks $lock
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}
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do_test 1.1 {
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testvfs T
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T filter xShmLock
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T script lock_callback
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set ::locks [list]
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sqlite3 db test.db -vfs T
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execsql { SELECT * FROM x }
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lrange $::locks 0 11
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} [list {0 1 lock exclusive} {1 2 lock exclusive} \
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{4 1 lock exclusive} {4 1 unlock exclusive} \
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{5 1 lock exclusive} {5 1 unlock exclusive} \
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{6 1 lock exclusive} {6 1 unlock exclusive} \
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{7 1 lock exclusive} {7 1 unlock exclusive} \
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{1 2 unlock exclusive} \
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{0 1 unlock exclusive} \
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]
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do_test 1.2 {
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db close
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set ::locks [list]
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sqlite3 db test.db -vfs T
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execsql { SELECT * FROM x }
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lrange $::locks 0 11
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} [list {0 1 lock exclusive} {1 2 lock exclusive} \
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{4 1 lock exclusive} {4 1 unlock exclusive} \
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{5 1 lock exclusive} {5 1 unlock exclusive} \
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{6 1 lock exclusive} {6 1 unlock exclusive} \
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{7 1 lock exclusive} {7 1 unlock exclusive} \
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{1 2 unlock exclusive} \
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{0 1 unlock exclusive} \
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]
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proc lock_callback {method filename handle lock} {
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if {$lock == "1 2 lock exclusive"} { return SQLITE_BUSY }
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return SQLITE_OK
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}
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puts "# Warning: This next test case causes SQLite to call xSleep(1) 100 times."
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puts "# Normally this equates to a delay of roughly 10 seconds, but if SQLite"
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puts "# is built on unix without HAVE_USLEEP defined, it may be much longer."
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do_test 1.3 {
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db close
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set ::locks [list]
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sqlite3 db test.db -vfs T
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catchsql { SELECT * FROM x }
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} {1 {locking protocol}}
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puts "# Warning: Same again!"
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proc lock_callback {method filename handle lock} {
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if {$lock == "0 1 lock exclusive"} { return SQLITE_BUSY }
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return SQLITE_OK
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}
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do_test 1.4 {
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db close
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set ::locks [list]
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sqlite3 db test.db -vfs T
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catchsql { SELECT * FROM x }
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} {1 {locking protocol}}
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puts "# Warning: Third time!"
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proc lock_callback {method filename handle lock} {
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if {$lock == "4 4 lock exclusive"} { return SQLITE_BUSY }
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return SQLITE_OK
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}
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do_test 1.5 {
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db close
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set ::locks [list]
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sqlite3 db test.db -vfs T
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catchsql { SELECT * FROM x }
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} {0 z}
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db close
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T delete
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#-------------------------------------------------------------------------
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#
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do_test 2.1 {
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forcedelete test.db test.db-journal test.db wal
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sqlite3 db test.db
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sqlite3 db2 test.db
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execsql {
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PRAGMA auto_vacuum = off;
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PRAGMA journal_mode = WAL;
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CREATE TABLE b(c);
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INSERT INTO b VALUES('Tehran');
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INSERT INTO b VALUES('Qom');
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INSERT INTO b VALUES('Markazi');
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PRAGMA wal_checkpoint;
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}
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} {wal 0 5 5}
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do_test 2.2 {
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execsql { SELECT * FROM b }
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} {Tehran Qom Markazi}
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do_test 2.3 {
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db eval { SELECT * FROM b } {
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db eval { INSERT INTO b VALUES('Qazvin') }
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set r [db2 eval { SELECT * FROM b }]
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break
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}
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set r
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} {Tehran Qom Markazi Qazvin}
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do_test 2.4 {
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execsql {
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INSERT INTO b VALUES('Gilan');
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INSERT INTO b VALUES('Ardabil');
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}
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} {}
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db2 close
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faultsim_save_and_close
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testvfs T -default 1
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faultsim_restore_and_reopen
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T filter xShmLock
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T script lock_callback
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proc lock_callback {method file handle spec} {
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if {$spec == "1 2 unlock exclusive"} {
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T filter {}
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set ::r [catchsql { SELECT * FROM b } db2]
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}
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}
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sqlite3 db test.db
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sqlite3 db2 test.db
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puts "# Warning: Another slow test!"
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do_test 2.5 {
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execsql { SELECT * FROM b }
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} {Tehran Qom Markazi Qazvin Gilan Ardabil}
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do_test 2.6 {
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set ::r
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} {0 {Tehran Qom Markazi Qazvin Gilan Ardabil}}
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db close
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db2 close
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faultsim_restore_and_reopen
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sqlite3 db2 test.db
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T filter xShmLock
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T script lock_callback
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proc lock_callback {method file handle spec} {
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if {$spec == "1 2 unlock exclusive"} {
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T filter {}
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set ::r [catchsql { SELECT * FROM b } db2]
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}
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}
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unset ::r
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puts "# Warning: Last one!"
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do_test 2.7 {
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execsql { SELECT * FROM b }
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} {Tehran Qom Markazi Qazvin Gilan Ardabil}
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do_test 2.8 {
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set ::r
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} {0 {Tehran Qom Markazi Qazvin Gilan Ardabil}}
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db close
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db2 close
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T delete
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finish_test
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