1: # 2008 June 9
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: #
12: # Test that it is possible to have two open blob handles on a single
13: # blob object.
14: #
15: # $Id: incrblob2.test,v 1.1.1.1 2012/02/21 17:04:16 misho Exp $
16: #
17:
18: set testdir [file dirname $argv0]
19: source $testdir/tester.tcl
20:
21: ifcapable {!autovacuum || !pragma || !incrblob} {
22: finish_test
23: return
24: }
25:
26: do_test incrblob2-1.0 {
27: execsql {
28: CREATE TABLE blobs(id INTEGER PRIMARY KEY, data BLOB);
29: INSERT INTO blobs VALUES(NULL, zeroblob(5000));
30: INSERT INTO blobs VALUES(NULL, zeroblob(5000));
31: INSERT INTO blobs VALUES(NULL, zeroblob(5000));
32: INSERT INTO blobs VALUES(NULL, zeroblob(5000));
33: }
34: } {}
35:
36: foreach iOffset [list 0 256 4094] {
37: do_test incrblob2-1.$iOffset.1 {
38: set fd [db incrblob blobs data 1]
39: puts $fd "[string repeat x $iOffset]SQLite version 3.6.0"
40: close $fd
41: } {}
42:
43: do_test incrblob2-1.$iOffset.2 {
44: set fd1 [db incrblob blobs data 1]
45: set fd2 [db incrblob blobs data 1]
46: fconfigure $fd1 -buffering none
47: fconfigure $fd2 -buffering none
48: if {$iOffset != 0} {
49: seek $fd2 $iOffset start
50: seek $fd1 $iOffset start
51: }
52: read $fd1 6
53: } {SQLite}
54:
55: do_test incrblob2-1.$iOffset.3 {
56: read $fd2 6
57: } {SQLite}
58:
59: do_test incrblob2-1.$iOffset.4 {
60: seek $fd2 $iOffset start
61: seek $fd1 $iOffset start
62: puts -nonewline $fd2 "etiLQS"
63: } {}
64:
65:
66: do_test incrblob2-1.$iOffset.5 {
67: seek $fd1 $iOffset start
68: read $fd1 6
69: } {etiLQS}
70:
71: do_test incrblob2-1.$iOffset.6 {
72: seek $fd2 $iOffset start
73: read $fd2 6
74: } {etiLQS}
75:
76: do_test incrblob2-1.$iOffset.7 {
77: seek $fd1 $iOffset start
78: read $fd1 6
79: } {etiLQS}
80:
81: do_test incrblob2-1.$iOffset.8 {
82: close $fd1
83: close $fd2
84: } {}
85: }
86:
87: #--------------------------------------------------------------------------
88:
89: foreach iOffset [list 0 256 4094] {
90:
91: do_test incrblob2-2.$iOffset.1 {
92: set fd1 [db incrblob blobs data 1]
93: seek $fd1 [expr $iOffset - 5000] end
94: fconfigure $fd1 -buffering none
95:
96: set fd2 [db incrblob blobs data 1]
97: seek $fd2 [expr $iOffset - 5000] end
98: fconfigure $fd2 -buffering none
99:
100: puts -nonewline $fd1 "123456"
101: } {}
102:
103: do_test incrblob2-2.$iOffset.2 {
104: read $fd2 6
105: } {123456}
106:
107: do_test incrblob2-2.$iOffset.3 {
108: close $fd1
109: close $fd2
110: } {}
111: }
112:
113: do_test incrblob2-3.1 {
114: set fd1 [db incrblob blobs data 1]
115: fconfigure $fd1 -buffering none
116: } {}
117: do_test incrblob2-3.2 {
118: execsql {
119: INSERT INTO blobs VALUES(5, zeroblob(10240));
120: }
121: } {}
122: do_test incrblob2-3.3 {
123: set rc [catch { read $fd1 6 } msg]
124: list $rc $msg
125: } {0 123456}
126: do_test incrblob2-3.4 {
127: close $fd1
128: } {}
129:
130: #--------------------------------------------------------------------------
131: # The following tests - incrblob2-4.* - test that blob handles are
132: # invalidated at the correct times.
133: #
134: do_test incrblob2-4.1 {
135: unset -nocomplain data
136: db eval BEGIN
137: db eval { CREATE TABLE t1(id INTEGER PRIMARY KEY, data BLOB); }
138: for {set ii 1} {$ii < 100} {incr ii} {
139: set data [string repeat "blob$ii" 500]
140: db eval { INSERT INTO t1 VALUES($ii, $data) }
141: }
142: db eval COMMIT
143: } {}
144:
145: proc aborted_handles {} {
146: global handles
147:
148: set aborted {}
149: for {set ii 1} {$ii < 100} {incr ii} {
150: set str "blob$ii"
151: set nByte [string length $str]
152: set iOffset [expr $nByte * $ii * 2]
153:
154: set rc [catch {sqlite3_blob_read $handles($ii) $iOffset $nByte} msg]
155: if {$rc && $msg eq "SQLITE_ABORT"} {
156: lappend aborted $ii
157: } else {
158: if {$rc || $msg ne $str} {
159: error "blob $ii: $msg"
160: }
161: }
162: }
163: set aborted
164: }
165:
166: do_test incrblob2-4.2 {
167: for {set ii 1} {$ii < 100} {incr ii} {
168: set handles($ii) [db incrblob t1 data $ii]
169: }
170: aborted_handles
171: } {}
172:
173: # Update row 3. This should abort handle 3 but leave all others untouched.
174: #
175: do_test incrblob2-4.3 {
176: db eval {UPDATE t1 SET data = data || '' WHERE id = 3}
177: aborted_handles
178: } {3}
179:
180: # Test that a write to handle 3 also returns SQLITE_ABORT.
181: #
182: do_test incrblob2-4.3.1 {
183: set rc [catch {sqlite3_blob_write $::handles(3) 10 HELLO} msg]
184: list $rc $msg
185: } {1 SQLITE_ABORT}
186:
187: # Delete row 14. This should abort handle 6 but leave all others untouched.
188: #
189: do_test incrblob2-4.4 {
190: db eval {DELETE FROM t1 WHERE id = 14}
191: aborted_handles
192: } {3 14}
193:
194: # Change the rowid of row 15 to 102. Should abort handle 15.
195: #
196: do_test incrblob2-4.5 {
197: db eval {UPDATE t1 SET id = 102 WHERE id = 15}
198: aborted_handles
199: } {3 14 15}
200:
201: # Clobber row 92 using INSERT OR REPLACE.
202: #
203: do_test incrblob2-4.6 {
204: db eval {INSERT OR REPLACE INTO t1 VALUES(92, zeroblob(1000))}
205: aborted_handles
206: } {3 14 15 92}
207:
208: # Clobber row 65 using UPDATE OR REPLACE on row 35. This should abort
209: # handles 35 and 65.
210: #
211: do_test incrblob2-4.7 {
212: db eval {UPDATE OR REPLACE t1 SET id = 65 WHERE id = 35}
213: aborted_handles
214: } {3 14 15 35 65 92}
215:
216: # Insert a couple of new rows. This should not invalidate any handles.
217: #
218: do_test incrblob2-4.9 {
219: db eval {INSERT INTO t1 SELECT NULL, data FROM t1}
220: aborted_handles
221: } {3 14 15 35 65 92}
222:
223: # Delete all rows from 1 to 25. This should abort all handles up to 25.
224: #
225: do_test incrblob2-4.9 {
226: db eval {DELETE FROM t1 WHERE id >=1 AND id <= 25}
227: aborted_handles
228: } {1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 35 65 92}
229:
230: # Delete the whole table (this will use sqlite3BtreeClearTable()). All handles
231: # should now be aborted.
232: #
233: do_test incrblob2-4.10 {
234: db eval {DELETE FROM t1}
235: aborted_handles
236: } {1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99}
237:
238: do_test incrblob2-4.1.X {
239: for {set ii 1} {$ii < 100} {incr ii} {
240: close $handles($ii)
241: }
242: } {}
243:
244: #--------------------------------------------------------------------------
245: # The following tests - incrblob2-5.* - test that in shared cache an open
246: # blob handle counts as a read-lock on its table.
247: #
248: ifcapable shared_cache {
249: db close
250: set ::enable_shared_cache [sqlite3_enable_shared_cache 1]
251:
252: do_test incrblob2-5.1 {
253: sqlite3 db test.db
254: sqlite3 db2 test.db
255:
256: execsql {
257: INSERT INTO t1 VALUES(1, 'abcde');
258: }
259: } {}
260:
261: do_test incrblob2-5.2 {
262: catchsql { INSERT INTO t1 VALUES(2, 'fghij') } db2
263: } {0 {}}
264:
265: do_test incrblob2-5.3 {
266: set blob [db incrblob t1 data 1]
267: catchsql { INSERT INTO t1 VALUES(3, 'klmno') } db2
268: } {1 {database table is locked}}
269:
270: do_test incrblob2-5.4 {
271: close $blob
272: execsql BEGIN db2
273: catchsql { INSERT INTO t1 VALUES(4, 'pqrst') } db2
274: } {0 {}}
275:
276: do_test incrblob2-5.5 {
277: set rc [catch { db incrblob -readonly t1 data 1 } msg]
278: list $rc $msg
279: } {1 {database table is locked: t1}}
280:
281: do_test incrblob2-5.6 {
282: execsql { PRAGMA read_uncommitted=1 }
283: set blob [db incrblob -readonly t1 data 4]
284: read $blob
285: } {pqrst}
286:
287: do_test incrblob2-5.7 {
288: catchsql { INSERT INTO t1 VALUES(3, 'klmno') } db2
289: } {0 {}}
290:
291: do_test incrblob2-5.8 {
292: close $blob
293: } {}
294:
295: db2 close
296: db close
297: sqlite3_enable_shared_cache $::enable_shared_cache
298: }
299:
300: #--------------------------------------------------------------------------
301: # The following tests - incrblob2-6.* - test a specific scenario that might
302: # be causing an error.
303: #
304: sqlite3 db test.db
305: do_test incrblob2-6.1 {
306: execsql {
307: DELETE FROM t1;
308: INSERT INTO t1 VALUES(1, zeroblob(100));
309: }
310:
311: set rdHandle [db incrblob -readonly t1 data 1]
312: set wrHandle [db incrblob t1 data 1]
313:
314: sqlite3_blob_read $rdHandle 0 100
315:
316: sqlite3_blob_write $wrHandle 0 ABCDEF
317:
318: close $wrHandle
319: close $rdHandle
320: } {}
321:
322: do_test incrblob2-6.2 {
323: set rdHandle [db incrblob -readonly t1 data 1]
324: sqlite3_blob_read $rdHandle 0 2
325: } {AB}
326:
327: do_test incrblob2-6.3 {
328: set wrHandle [db incrblob t1 data 1]
329: sqlite3_blob_write $wrHandle 0 ZZZZZZZZZZ
330: sqlite3_blob_read $rdHandle 2 4
331: } {ZZZZ}
332:
333: do_test incrblob2-6.4 {
334: close $wrHandle
335: close $rdHandle
336: } {}
337:
338: sqlite3_memory_highwater 1
339: do_test incrblob2-7.1 {
340: db eval {
341: CREATE TABLE t2(B BLOB);
342: INSERT INTO t2 VALUES(zeroblob(10 * 1024 * 1024));
343: }
344: expr {[sqlite3_memory_highwater]<(5 * 1024 * 1024)}
345: } {1}
346:
347: do_test incrblob2-7.2 {
348: set h [db incrblob t2 B 1]
349: expr {[sqlite3_memory_highwater]<(5 * 1024 * 1024)}
350: } {1}
351:
352: do_test incrblob2-7.3 {
353: seek $h 0 end
354: tell $h
355: } [expr 10 * 1024 * 1024]
356:
357: do_test incrblob2-7.4 {
358: expr {[sqlite3_memory_highwater]<(5 * 1024 * 1024)}
359: } {1}
360:
361: do_test incrblob2-7.5 {
362: close $h
363: } {}
364:
365: #---------------------------------------------------------------------------
366: # The following tests, incrblob2-8.*, test that nothing terrible happens
367: # when a statement transaction is rolled back while there are open
368: # incremental-blob handles. At one point an assert() was failing when
369: # this was attempted.
370: #
371: do_test incrblob2-8.1 {
372: execsql BEGIN
373: set h [db incrblob t2 B 1]
374: set rc [catch {
375: db eval {SELECT rowid FROM t2} { execsql "DROP TABLE t2" }
376: } msg]
377: list $rc $msg
378: } {1 {database table is locked}}
379: do_test incrblob2-8.2 {
380: close $h
381: execsql COMMIT
382: } {}
383: do_test incrblob2-8.3 {
384: execsql {
385: CREATE TABLE t3(a INTEGER UNIQUE, b TEXT);
386: INSERT INTO t3 VALUES(1, 'aaaaaaaaaaaaaaaaaaaa');
387: INSERT INTO t3 VALUES(2, 'bbbbbbbbbbbbbbbbbbbb');
388: INSERT INTO t3 VALUES(3, 'cccccccccccccccccccc');
389: INSERT INTO t3 VALUES(4, 'dddddddddddddddddddd');
390: INSERT INTO t3 VALUES(5, 'eeeeeeeeeeeeeeeeeeee');
391: }
392: } {}
393: do_test incrblob2-8.4 {
394: execsql BEGIN
395: set h [db incrblob t3 b 3]
396: sqlite3_blob_read $h 0 20
397: } {cccccccccccccccccccc}
398: do_test incrblob2-8.5 {
399: catchsql {UPDATE t3 SET a = 6 WHERE a > 3}
400: } {1 {column a is not unique}}
401: do_test incrblob2-8.6 {
402: catchsql {UPDATE t3 SET a = 6 WHERE a > 3}
403: } {1 {column a is not unique}}
404: do_test incrblob2-8.7 {
405: sqlite3_blob_read $h 0 20
406: } {cccccccccccccccccccc}
407: do_test incrblob2-8.8 {
408: catchsql {UPDATE t3 SET a = 6 WHERE a = 3 OR a = 5}
409: } {1 {column a is not unique}}
410: do_test incrblob2-8.9 {
411: set rc [catch {sqlite3_blob_read $h 0 20} msg]
412: list $rc $msg
413: } {1 SQLITE_ABORT}
414: do_test incrblob2-8.X {
415: close $h
416: } {}
417:
418: finish_test
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