Fix a problem with rolling back hot journals using the unix-dotfile VFS.
FossilOrigin-Name: 4ae3300b79e03381fd7f1033bb7978bb6367369790f17c3bdacac51e205edaf9
This commit is contained in:
dan
parent
e15d5de0a6
commit
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19
manifest
19
manifest
@ -1,5 +1,5 @@
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C Remove\ssome\sdead\sJS\scode\sand\supdate\ssome\sJS\sdocs.
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D 2024-06-11T17:04:43.812
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C Fix\sa\sproblem\swith\srolling\sback\shot\sjournals\susing\sthe\sunix-dotfile\sVFS.
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D 2024-06-11T20:03:32.695
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F .fossil-settings/empty-dirs dbb81e8fc0401ac46a1491ab34a7f2c7c0452f2f06b54ebb845d024ca8283ef1
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F .fossil-settings/ignore-glob 35175cdfcf539b2318cb04a9901442804be81cd677d8b889fcc9149c21f239ea
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F LICENSE.md df5091916dbb40e6e9686186587125e1b2ff51f022cc334e886c19a0e9982724
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@ -739,7 +739,7 @@ F src/os.h 1ff5ae51d339d0e30d8a9d814f4b8f8e448169304d83a7ed9db66a65732f3e63
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F src/os_common.h 6c0eb8dd40ef3e12fe585a13e709710267a258e2c8dd1c40b1948a1d14582e06
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F src/os_kv.c 4d39e1f1c180b11162c6dc4aa8ad34053873a639bac6baae23272fc03349986a
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F src/os_setup.h 6011ad7af5db4e05155f385eb3a9b4470688de6f65d6166b8956e58a3d872107
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F src/os_unix.c 08ca53844f4bf8eafb18b0a9076c84afac41da912315a5cfbe9e704d4c10c090
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F src/os_unix.c 582eb7e4aa4fee66dd9475cf7325a6753890266020ba1670c36ed8b9babd5a46
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F src/os_win.c 6ff43bac175bd9ed79e7c0f96840b139f2f51d01689a638fd05128becf94908a
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F src/os_win.h 7b073010f1451abe501be30d12f6bc599824944a
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F src/pager.c 9beb80f6e330dd63c5d8ba0f7a7f3a55fff22067a68d424949c389bfc6fa0c56
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@ -1388,7 +1388,7 @@ F test/lock.test be4fe08118fb988fed741f429b7dd5d65e1c90db
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F test/lock2.test 5242d8ac4e2d59c403aebff606af449b455aceff
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F test/lock3.test f271375930711ae044080f4fe6d6eda930870d00
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F test/lock4.test 27143363eda1622f03c133efc8db808fc331afd973486cb571ea71cd717d37b8
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F test/lock5.test c6c5e0ebcb21c61a572870cc86c0cb9f14cede38
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F test/lock5.test 69d7991e39c3fade9b6e46403c1386bcd21a4808796c9c6f60f17d0fdcec266f
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F test/lock6.test ad5b387a3a8096afd3c68a55b9535056431b0cf5
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F test/lock7.test 49f1eaff1cdc491cc5dee3669f3c671d9f172431
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F test/lock_common.tcl 2f3f7f2e9637f93ccf609df48ef5b27a50278b6b1cd752b445d52262e5841413
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@ -2195,8 +2195,11 @@ F vsixtest/vsixtest.tcl 6a9a6ab600c25a91a7acc6293828957a386a8a93
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F vsixtest/vsixtest.vcxproj.data 2ed517e100c66dc455b492e1a33350c1b20fbcdc
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F vsixtest/vsixtest.vcxproj.filters 37e51ffedcdb064aad6ff33b6148725226cd608e
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F vsixtest/vsixtest_TemporaryKey.pfx e5b1b036facdb453873e7084e1cae9102ccc67a0
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P 06e6f64533563ab9c059b773e5f0d78085df716f2624e547b7259f6789c3ffe0
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R 79d342ace6fd539450d6954e121ef97a
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U stephan
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Z 878c1bfba19ab8a7570c53af656f275c
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P 6935ac71bad3d36cc519f0325ae4447a674f257309d020cdc0741160fcce0580
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R a6be376671415b32f13dc00f1cf159ee
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T *branch * unix-dotfile-fix
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T *sym-unix-dotfile-fix *
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T -sym-trunk *
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U dan
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Z 82729b2f1037b9035a8ecef1ba94fcd8
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# Remove this line to create a well-formed Fossil manifest.
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@ -1 +1 @@
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6935ac71bad3d36cc519f0325ae4447a674f257309d020cdc0741160fcce0580
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4ae3300b79e03381fd7f1033bb7978bb6367369790f17c3bdacac51e205edaf9
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@ -2279,26 +2279,17 @@ static int nolockClose(sqlite3_file *id) {
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/*
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** This routine checks if there is a RESERVED lock held on the specified
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** file by this or any other process. If such a lock is held, set *pResOut
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** to a non-zero value otherwise *pResOut is set to zero. The return value
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** is set to SQLITE_OK unless an I/O error occurs during lock checking.
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**
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** In dotfile locking, either a lock exists or it does not. So in this
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** variation of CheckReservedLock(), *pResOut is set to true if any lock
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** is held on the file and false if the file is unlocked.
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** file by this or any other process. The caller always holds a SHARED
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** lock when it is called. This means that no other connection could
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** hold a RESERVED lock, as unix-dotfile uses just a single exclusive lock -
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** the presence of the dotfile - for all 4 VFS locks. So this function sets
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** (*pResOut) to 0 (no other connection holds RESERVED) and returns SQLITE_OK.
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*/
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static int dotlockCheckReservedLock(sqlite3_file *id, int *pResOut) {
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int rc = SQLITE_OK;
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int reserved = 0;
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unixFile *pFile = (unixFile*)id;
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SimulateIOError( return SQLITE_IOERR_CHECKRESERVEDLOCK; );
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assert( pFile );
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reserved = osAccess((const char*)pFile->lockingContext, 0)==0;
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OSTRACE(("TEST WR-LOCK %d %d %d (dotlock)\n", pFile->h, rc, reserved));
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*pResOut = reserved;
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return rc;
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assert( ((unixFile*)id)->eFileLock>=SHARED_LOCK );
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*pResOut = 0;
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return SQLITE_OK;
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}
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/*
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@ -11,10 +11,10 @@
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# This file implements regression tests for SQLite library. The
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# focus of this script is database locks.
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#
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# $Id: lock5.test,v 1.6 2008/12/04 12:34:16 drh Exp $
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set testdir [file dirname $argv0]
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source $testdir/tester.tcl
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set testprefix lock5
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# This file is only run if using the unix backend compiled with the
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# SQLITE_ENABLE_LOCKING_STYLE macro.
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@ -101,10 +101,7 @@ do_test lock5-dotfile.X {
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#####################################################################
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forcedelete test.db
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if {[catch {sqlite3 db test.db -vfs unix-flock} msg]} {
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finish_test
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return
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}
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if {0==[catch {sqlite3 db test.db -vfs unix-flock} msg]} {
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do_test lock5-flock.1 {
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sqlite3 db test.db -vfs unix-flock
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@ -149,13 +146,19 @@ do_test lock5-flock.8 {
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db2 close
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} {}
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}
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#####################################################################
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reset_db
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do_test lock5-none.1 {
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sqlite3 db test.db -vfs unix-none
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sqlite3 db2 test.db -vfs unix-none
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execsql { PRAGMA mmap_size = 0 } db2
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execsql {
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CREATE TABLE t1(a, b);
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INSERT INTO t1 VALUES(1, 2);
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BEGIN;
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INSERT INTO t1 VALUES(3, 4);
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}
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@ -193,4 +196,62 @@ ifcapable lock_proxy_pragmas {
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set env(SQLITE_FORCE_PROXY_LOCKING) $::using_proxy
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}
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#####################################################################
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reset_db
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# 1. Create a large database using the unix-dotfile VFS
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# 2. Write a large transaction to the db, so that the cache spills, but do
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# not commit it.
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# 3. Make a copy of the database files on disk.
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# 4. Try to read from the copy using unix-dotfile VFS. This fails because
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# the dotfile still exists, so SQLite things the database is locked.
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# 5. Remove the dotfile.
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# 6. Try to read the db again. This time, the old transaction is rolled
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# back and the read permitted.
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#
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do_test 2.dotfile.1 {
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sqlite3 db test.db -vfs unix-dotfile
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execsql {
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PRAGMA cache_size = 10;
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CREATE TABLE t1(x, y, z);
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CREATE INDEX t1x ON t1(x);
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WITH s(i) AS (
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SELECT 1 UNION ALL SELECT i+1 FROM s WHERE i<1000
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)
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INSERT INTO t1 SELECT hex(randomblob(20)), hex(randomblob(500)), i FROM s;
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}
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} {}
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do_execsql_test 2.dotfile.2 {
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BEGIN;
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UPDATE t1 SET z=z+1, x=hex(randomblob(20));
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}
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do_test 2.dotfile.3 {
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list \
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[file exists test.db] \
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[file exists test.db-journal] \
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[file exists test.db.lock]
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} {1 1 1}
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do_test 2.dotfile.4 {
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forcecopy test.db test.db2
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forcecopy test.db-journal test.db2-journal
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file mkdir test.db2.lock
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sqlite3 db2 test.db2 -vfs unix-dotfile
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catchsql {
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SELECT count(*) FROM t1;
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} db2
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} {1 {database is locked}}
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do_test 2.dotfile.5 {
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file delete test.db2.lock
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execsql {
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PRAGMA integrity_check
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} db2
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} {ok}
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finish_test
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