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In sqlite3_table_column_metadata(), hold the mutex on all attached BtShared objects while accessing schema objects. Fix for #3679. (CVS 6328)
FossilOrigin-Name: d197afd658eecfc0e24913e5a779c8f1e2a138a6
This commit is contained in:
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17
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@ -1,5 +1,5 @@
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C Move\sthe\snew\sgenfkey\sshell\scommand\sout\sfrom\swithin\s#ifdef\s_WIN32_\s(CVS\s6327)
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C In\ssqlite3_table_column_metadata(),\shold\sthe\smutex\son\sall\sattached\sBtShared\sobjects\swhile\saccessing\sschema\sobjects.\sFix\sfor\s#3679.\s(CVS\s6328)
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D 2009-02-25T19:07:25
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D 2009-02-26T07:15:59
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F Makefile.arm-wince-mingw32ce-gcc fcd5e9cd67fe88836360bb4f9ef4cb7f8e2fb5a0
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F Makefile.arm-wince-mingw32ce-gcc fcd5e9cd67fe88836360bb4f9ef4cb7f8e2fb5a0
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F Makefile.in d64baddbf55cdf33ff030e14da837324711a4ef7
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F Makefile.in d64baddbf55cdf33ff030e14da837324711a4ef7
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F Makefile.linux-gcc d53183f4aa6a9192d249731c90dbdffbd2c68654
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F Makefile.linux-gcc d53183f4aa6a9192d249731c90dbdffbd2c68654
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@ -122,7 +122,7 @@ F src/insert.c 529a1b9889fe3c2eb093cc02c3053b04c65daa7e
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F src/journal.c e00df0c0da8413ab6e1bb7d7cab5665d4a9000d0
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F src/journal.c e00df0c0da8413ab6e1bb7d7cab5665d4a9000d0
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F src/legacy.c 8b3b95d48d202614946d7ce7256e7ba898905c3b
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F src/legacy.c 8b3b95d48d202614946d7ce7256e7ba898905c3b
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F src/loadext.c 3f96631089fc4f3871a67f02f2e4fc7ea4d51edc
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F src/loadext.c 3f96631089fc4f3871a67f02f2e4fc7ea4d51edc
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F src/main.c f7f7c2fcbda632bfb7995c77636660a019a172c7
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F src/main.c fd98b89bcc80d27e303c913c8facab9ee939ef15
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F src/malloc.c 072ddad9b7e908e9b9a2a494d4758dadeced61ae
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F src/malloc.c 072ddad9b7e908e9b9a2a494d4758dadeced61ae
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F src/mem0.c f2f84062d1f35814d6535c9f9e33de3bfb3b132c
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F src/mem0.c f2f84062d1f35814d6535c9f9e33de3bfb3b132c
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F src/mem1.c 3bfb39e4f60b0179713a7c087b2d4f0dc205735f
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F src/mem1.c 3bfb39e4f60b0179713a7c087b2d4f0dc205735f
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@ -493,7 +493,7 @@ F test/pragma2.test 5364893491b9231dd170e3459bfc2e2342658b47
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F test/printf.test 47e9e5bbec8509023479d54ceb71c9d05a95308a
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F test/printf.test 47e9e5bbec8509023479d54ceb71c9d05a95308a
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F test/progress.test 5b075c3c790c7b2a61419bc199db87aaf48b8301 x
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F test/progress.test 5b075c3c790c7b2a61419bc199db87aaf48b8301 x
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F test/ptrchng.test ef1aa72d6cf35a2bbd0869a649b744e9d84977fc
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F test/ptrchng.test ef1aa72d6cf35a2bbd0869a649b744e9d84977fc
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F test/quick.test 4a09b89a44be46b3ee5a5dbe25b72cb1e5c3ead8
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F test/quick.test b7acd5b3df583391979d9f9edf98aa85fc95a3f6
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F test/quote.test 215897dbe8de1a6f701265836d6601cc6ed103e6
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F test/quote.test 215897dbe8de1a6f701265836d6601cc6ed103e6
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F test/randexpr1.tcl 40dec52119ed3a2b8b2a773bce24b63a3a746459
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F test/randexpr1.tcl 40dec52119ed3a2b8b2a773bce24b63a3a746459
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F test/randexpr1.test 1084050991e9ba22c1c10edd8d84673b501cc25a
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F test/randexpr1.test 1084050991e9ba22c1c10edd8d84673b501cc25a
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@ -556,6 +556,7 @@ F test/tester.tcl 66546f6766029384360b24cacb3896376c5f5f69
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F test/thread001.test 06c45ed9597d478e7bbdc2a8937e1ebea2a20a32
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F test/thread001.test 06c45ed9597d478e7bbdc2a8937e1ebea2a20a32
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F test/thread002.test 3c03900f03fd2fe8e2fbb1bbdef7fa8206fdb7ad
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F test/thread002.test 3c03900f03fd2fe8e2fbb1bbdef7fa8206fdb7ad
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F test/thread003.test 6d360c15afe7f6ef6186801d2cb8407bccbe3aa3
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F test/thread003.test 6d360c15afe7f6ef6186801d2cb8407bccbe3aa3
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F test/thread004.test 9d8ea6a9b0d62d35ad0b967e010d723ed99f614a
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F test/thread1.test 862dd006d189e8b0946935db17399dcac2f8ef91
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F test/thread1.test 862dd006d189e8b0946935db17399dcac2f8ef91
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F test/thread2.test 91f105374f18a66e73a3254c28fe7c77af69bdea
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F test/thread2.test 91f105374f18a66e73a3254c28fe7c77af69bdea
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F test/thread_common.tcl 047f80288b5e1e86bed181097d67e640f1a54a74
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F test/thread_common.tcl 047f80288b5e1e86bed181097d67e640f1a54a74
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@ -701,7 +702,7 @@ F tool/speedtest16.c c8a9c793df96db7e4933f0852abb7a03d48f2e81
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F tool/speedtest2.tcl ee2149167303ba8e95af97873c575c3e0fab58ff
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F tool/speedtest2.tcl ee2149167303ba8e95af97873c575c3e0fab58ff
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F tool/speedtest8.c 2902c46588c40b55661e471d7a86e4dd71a18224
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F tool/speedtest8.c 2902c46588c40b55661e471d7a86e4dd71a18224
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F tool/speedtest8inst1.c 293327bc76823f473684d589a8160bde1f52c14e
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F tool/speedtest8inst1.c 293327bc76823f473684d589a8160bde1f52c14e
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P 36d699660bc328e65170d72be715338e82dbbb50
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P 48ee0e47e2d9669cc7425104e6b04ce49caf2e56
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R 7f42e226ab2b746ac50fedc5f267f111
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R 42441caf74da644bc7eebc8b71116801
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U drh
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U danielk1977
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Z 46bbb2602043845ae8e84b264be6c003
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Z 25037733e5d25d45bee1e03b1015374a
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@ -1 +1 @@
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48ee0e47e2d9669cc7425104e6b04ce49caf2e56
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d197afd658eecfc0e24913e5a779c8f1e2a138a6
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@ -14,7 +14,7 @@
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** other files are for internal use by SQLite and should not be
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** other files are for internal use by SQLite and should not be
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** accessed by users of the library.
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** accessed by users of the library.
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**
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**
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** $Id: main.c,v 1.529 2009/02/23 14:42:53 danielk1977 Exp $
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** $Id: main.c,v 1.530 2009/02/26 07:15:59 danielk1977 Exp $
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*/
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*/
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#include "sqliteInt.h"
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#include "sqliteInt.h"
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@ -1933,7 +1933,6 @@ int sqlite3_table_column_metadata(
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(void)sqlite3SafetyOn(db);
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(void)sqlite3SafetyOn(db);
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sqlite3BtreeEnterAll(db);
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sqlite3BtreeEnterAll(db);
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rc = sqlite3Init(db, &zErrMsg);
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rc = sqlite3Init(db, &zErrMsg);
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sqlite3BtreeLeaveAll(db);
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if( SQLITE_OK!=rc ){
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if( SQLITE_OK!=rc ){
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goto error_out;
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goto error_out;
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}
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}
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@ -1989,6 +1988,7 @@ int sqlite3_table_column_metadata(
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}
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}
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error_out:
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error_out:
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sqlite3BtreeLeaveAll(db);
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(void)sqlite3SafetyOff(db);
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(void)sqlite3SafetyOff(db);
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/* Whether the function call succeeded or failed, set the output parameters
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/* Whether the function call succeeded or failed, set the output parameters
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@ -6,7 +6,7 @@
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#***********************************************************************
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#***********************************************************************
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# This file runs all tests.
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# This file runs all tests.
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#
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#
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# $Id: quick.test,v 1.92 2009/02/03 16:51:25 danielk1977 Exp $
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# $Id: quick.test,v 1.93 2009/02/26 07:15:59 danielk1977 Exp $
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proc lshift {lvar} {
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proc lshift {lvar} {
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upvar $lvar l
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upvar $lvar l
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@ -85,6 +85,7 @@ set EXCLUDE {
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thread001.test
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thread001.test
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thread002.test
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thread002.test
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thread003.test
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thread003.test
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thread004.test
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trans2.test
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trans2.test
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vacuum3.test
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vacuum3.test
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80
test/thread004.test
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test/thread004.test
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# 2009 February 26
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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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# $Id: thread004.test,v 1.1 2009/02/26 07:15:59 danielk1977 Exp $
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set testdir [file dirname $argv0]
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source $testdir/tester.tcl
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ifcapable !mutex||!shared_cache {
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return
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}
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source $testdir/thread_common.tcl
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if {[info commands sqlthread] eq ""
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|| [info commands sqlite3_table_column_metadata] eq ""
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} {
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return
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}
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# Use shared-cache mode for this test.
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#
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db close
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set ::enable_shared_cache [sqlite3_enable_shared_cache]
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sqlite3_enable_shared_cache 1
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# Create a table in database test.db
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#
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sqlite3 db test.db
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do_test thread004-1.1 {
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execsql { CREATE TABLE t1(a, b, c) }
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} {}
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do_test thread004-1.2 {
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set ThreadOne {
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set iStart [clock_seconds]
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while {[clock_seconds]<$iStart+20} {
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set ::DB [sqlite3_open test.db]
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sqlite3_close $::DB
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}
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}
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set ThreadTwo {
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set ::DB [sqlite3_open test.db]
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set iStart [clock_seconds]
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set nErr 0
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while {[clock_seconds] <$iStart+20} {
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incr nErr [catch {sqlite3_table_column_metadata $::DB main t1 a}]
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}
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sqlite3_close $::DB
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set nErr
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}
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# Run two threads. The first thread opens and closes database test.db
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# repeatedly. Each time this happens, the in-memory schema used by
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# all connections to test.db is discarded.
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#
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# The second thread calls sqlite3_table_column_metadata() over and
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# over again. Each time it is called, the database schema is loaded
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# if it is not already in memory. At one point this was crashing.
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#
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unset -nocomplain finished
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thread_spawn finished(1) $thread_procs $ThreadOne
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thread_spawn finished(2) $thread_procs $ThreadTwo
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foreach t {1 2} {
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if {![info exists finished($t)]} { vwait finished($t) }
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}
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set finished(2)
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} {0}
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sqlite3_enable_shared_cache $::enable_shared_cache
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finish_test
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