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# 2011 March 28
#
# 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.
#
#***********************************************************************
#
set testdir [file dirname $argv0]
source $testdir/tester.tcl
source $testdir/lock_common.tcl
source $testdir/malloc_common.tcl
if {[llength [info commands test_syscall]]==0} {
finish_test
return
}
set testprefix sysfault
set FAULTSIM(vfsfault-transient) [list \
-injectinstall vfsfault_install \
-injectstart vfsfault_injectstart_t \
-injectstop vfsfault_injectstop \
-injecterrlist {} \
-injectuninstall {test_syscall uninstall} \
]
set FAULTSIM(vfsfault-persistent) [list \
-injectinstall vfsfault_install \
-injectstart vfsfault_injectstart_p \
-injectstop vfsfault_injectstop \
-injecterrlist {} \
-injectuninstall {test_syscall uninstall} \
]
proc vfsfault_injectstart_t {iFail} { test_syscall fault $iFail 0 }
proc vfsfault_injectstart_p {iFail} { test_syscall fault $iFail 1 }
proc vfsfault_injectstop {} { test_syscall fault }
faultsim_save_and_close
set open_and_write_body {
sqlite3 db test.db
db eval {
CREATE TABLE t1(a, b);
INSERT INTO t1 VALUES(1, 2);
PRAGMA journal_mode = WAL;
INSERT INTO t1 VALUES(3, 4);
SELECT * FROM t1;
CREATE TEMP TABLE t2(x);
INSERT INTO t2 VALUES('y');
}
}
proc vfsfault_install {} { test_syscall install {open getcwd} }
do_faultsim_test 1 -faults vfsfault-* -prep {
faultsim_restore
} -body $open_and_write_body -test {
faultsim_test_result {0 {wal 1 2 3 4}} \
{1 {unable to open database file}} \
{1 {attempt to write a readonly database}}
}
#-------------------------------------------------------------------------
# Errors in the fstat() function when opening and writing a file. Cases
# where fstat() fails and sets errno to ENOMEM and EOVERFLOW are both
# tested. EOVERFLOW is interpreted as meaning that a file on disk is
# too large to be opened by the OS.
#
foreach {tn errno errlist} {
1 ENOMEM {{disk I/O error}}
2 EOVERFLOW {{disk I/O error} {large file support is disabled}}
} {
proc vfsfault_install {} { test_syscall install fstat }
set errs [list]
foreach e $errlist { lappend errs [list 1 $e] }
do_faultsim_test 1.2.$tn -faults vfsfault-* -prep {
faultsim_restore
} -body "
test_syscall errno fstat $errno
$open_and_write_body
" -test "
faultsim_test_result {0 {wal 1 2 3 4}} $errs
"
}
#-------------------------------------------------------------------------
# Various errors in locking functions.
#
foreach vfs {unix unix-excl} {
foreach {tn errno errlist} {
1 EAGAIN {{database is locked} {disk I/O error}}
2 ETIMEDOUT {{database is locked} {disk I/O error}}
3 EBUSY {{database is locked} {disk I/O error}}
4 EINTR {{database is locked} {disk I/O error}}
5 ENOLCK {{database is locked} {disk I/O error}}
6 EACCES {{database is locked} {disk I/O error}}
7 EPERM {{access permission denied} {disk I/O error}}
8 EDEADLK {{disk I/O error}}
9 ENOMEM {{disk I/O error}}
} {
proc vfsfault_install {} { test_syscall install fcntl }
set errs [list]
foreach e $errlist { lappend errs [list 1 $e] }
set body [string map [list %VFS% $vfs] {
sqlite3 db test.db
db eval {
CREATE TABLE t1(a, b);
INSERT INTO t1 VALUES(1, 2);
}
set fd [open test.db-journal w]
puts $fd "hello world"
close $fd
sqlite3 db test.db -vfs %VFS%
db eval {
SELECT * FROM t1;
}
}]
do_faultsim_test 1.3.$vfs.$tn -faults vfsfault-* -prep {
faultsim_restore
} -body "
test_syscall errno fcntl $errno
$body
" -test "
faultsim_test_result {0 {1 2}} $errs
"
}
}
#-------------------------------------------------------------------------
# Check that a single EINTR error does not affect processing.
#
proc vfsfault_install {} {
test_syscall reset
test_syscall install {open ftruncate close read pread pread64 write fallocate}
}
forcedelete test.db test.db2
sqlite3 db test.db
do_test 2.setup {
execsql {
CREATE TABLE t1(a, b, c, PRIMARY KEY(a));
INSERT INTO t1 VALUES('abc', 'def', 'ghi');
ATTACH 'test.db2' AS 'aux';
CREATE TABLE aux.t2(x);
INSERT INTO t2 VALUES(1);
}
faultsim_save_and_close
} {}
do_faultsim_test 2.1 -faults vfsfault-transient -prep {
catch { db close }
faultsim_restore
} -body {
test_syscall errno open EINTR
test_syscall errno ftruncate EINTR
test_syscall errno close EINTR
test_syscall errno read EINTR
test_syscall errno pread EINTR
test_syscall errno pread64 EINTR
test_syscall errno write EINTR
test_syscall errno fallocate EINTR
sqlite3 db test.db
file_control_chunksize_test db main 8192
set res [db eval {
ATTACH 'test.db2' AS 'aux';
SELECT * FROM t1;
PRAGMA journal_mode = truncate;
BEGIN;
INSERT INTO t1 VALUES('jkl', 'mno', 'pqr');
INSERT INTO t1 VALUES(randomblob(10000), 0, 0);
UPDATE t2 SET x = 2;
COMMIT;
DELETE FROM t1 WHERE length(a)>3;
SELECT * FROM t1;
SELECT * FROM t2;
}]
db close
set res
} -test {
faultsim_test_result {0 {abc def ghi truncate abc def ghi jkl mno pqr 2}}
}
do_faultsim_test 2.2 -faults vfsfault-* -prep {
catch { db close }
faultsim_restore
} -body {
sqlite3 db test.db
set res [db eval {
ATTACH 'test.db2' AS 'aux';
SELECT * FROM t1;
PRAGMA journal_mode = truncate;
BEGIN;
INSERT INTO t1 VALUES('jkl', 'mno', 'pqr');
UPDATE t2 SET x = 2;
COMMIT;
SELECT * FROM t1;
SELECT * FROM t2;
}]
db close
set res
} -test {
faultsim_test_result {0 {abc def ghi truncate abc def ghi jkl mno pqr 2}} \
{1 {unable to open database file}} \
{1 {unable to open database: test.db2}} \
{1 {attempt to write a readonly database}} \
{1 {disk I/O error}}
}
#-------------------------------------------------------------------------
proc vfsfault_install {} {
test_syscall reset
test_syscall install {fstat fallocate}
}
do_faultsim_test 3 -faults vfsfault-* -prep {
faultsim_delete_and_reopen
file_control_chunksize_test db main 8192
execsql {
PRAGMA synchronous=OFF;
CREATE TABLE t1(a, b);
BEGIN;
SELECT * FROM t1;
}
} -body {
test_syscall errno fstat EIO
test_syscall errno fallocate EIO
execsql {
INSERT INTO t1 VALUES(randomblob(10000), randomblob(10000));
SELECT length(a) + length(b) FROM t1;
COMMIT;
}
} -test {
faultsim_test_result {0 20000}
}
#-------------------------------------------------------------------------
# Test errors in mmap().
#
proc vfsfault_install {} {
test_syscall reset
test_syscall install {mmap}
}
faultsim_delete_and_reopen
execsql {
CREATE TABLE t1(a, b);
INSERT INTO t1 VALUES(1, 2);
}
faultsim_save_and_close
do_faultsim_test 4 -faults vfsfault-* -prep {
faultsim_restore_and_reopen
file_control_chunksize_test db main 8192
execsql {
PRAGMA mmap_size = 1000000;
}
} -body {
test_syscall errno mmap EACCES
execsql {
SELECT * FROM t1;
}
} -test {
faultsim_test_result {0 {1 2}} {1 {disk I/O error}}
}
finish_test
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