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Add the SQLITE_EXTRA_DURABLE compile-time option.

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FossilOrigin-Name: 30671345b1c1ee55a2d1aa17273213f1849efd81
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drh
2016-01-25 13:55:47 +00:00
parent a7dc4a321d
commit 164c957b09
3 changed files with 23 additions and 8 deletions
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12
manifest
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@@ -1,5 +1,5 @@
C Small\ssimplification\sto\sthe\sprepare\sstatement\sopcode\smemory\sreuse\slogic.\nEasier\sto\sread,\sand\sslightly\ssmaller\sand\sfaster. C Add\sthe\sSQLITE_EXTRA_DURABLE\scompile-time\soption.
D 2016-01-25T02:15:02.255 D 2016-01-25T13:55:47.049
F Makefile.in 027c1603f255390c43a426671055a31c0a65fdb4 F Makefile.in 027c1603f255390c43a426671055a31c0a65fdb4
F Makefile.linux-gcc 7bc79876b875010e8c8f9502eb935ca92aa3c434 F Makefile.linux-gcc 7bc79876b875010e8c8f9502eb935ca92aa3c434
F Makefile.msc 1708a78eda223b6daa302b140037fcc214a779f9 F Makefile.msc 1708a78eda223b6daa302b140037fcc214a779f9
@@ -332,7 +332,7 @@ F src/os_setup.h c9d4553b5aaa6f73391448b265b89bed0b890faa
F src/os_unix.c 0eb7f469fcd4e1fbedf30060438e26b839ec5486 F src/os_unix.c 0eb7f469fcd4e1fbedf30060438e26b839ec5486
F src/os_win.c 386fba30419e8458b13209781c2af5590eab2811 F src/os_win.c 386fba30419e8458b13209781c2af5590eab2811
F src/os_win.h eb7a47aa17b26b77eb97e4823f20a00b8bda12ca F src/os_win.h eb7a47aa17b26b77eb97e4823f20a00b8bda12ca
F src/pager.c f4e9ac39fbb1e0fde97af85c0f4e00eb90764b67 F src/pager.c 2916c66aee50f69d9ec56a7619b62d9c6a3bee61
F src/pager.h 1c2a49143dfba9e69cc8159ef019f472ed8d260b F src/pager.h 1c2a49143dfba9e69cc8159ef019f472ed8d260b
F src/parse.y caad1e98edeca6960493d0c60d31b76820dd7776 F src/parse.y caad1e98edeca6960493d0c60d31b76820dd7776
F src/pcache.c 73895411fa6b7bd6f0091212feabbe833b358d23 F src/pcache.c 73895411fa6b7bd6f0091212feabbe833b358d23
@@ -1419,7 +1419,7 @@ F tool/vdbe_profile.tcl 246d0da094856d72d2c12efec03250d71639d19f
F tool/warnings-clang.sh f6aa929dc20ef1f856af04a730772f59283631d4 F tool/warnings-clang.sh f6aa929dc20ef1f856af04a730772f59283631d4
F tool/warnings.sh 48bd54594752d5be3337f12c72f28d2080cb630b F tool/warnings.sh 48bd54594752d5be3337f12c72f28d2080cb630b
F tool/win/sqlite.vsix deb315d026cc8400325c5863eef847784a219a2f F tool/win/sqlite.vsix deb315d026cc8400325c5863eef847784a219a2f
P 0a9cff5c4822874b74e90bfca3963bc7e5c753a5 P 8a1deae497edf3fa43fa96152d140405398c5ed6
R 5ad29c29cc49b0c7f9cd0947deba5a80 R ae4ccddaf3c593cdf1ed2beb484cfd15
U drh U drh
Z 5c673e5ee459b55b04084dc37cebc110 Z 297086babbdf85e61ae58e42a437c1ec

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manifest.uuid
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8a1deae497edf3fa43fa96152d140405398c5ed6 30671345b1c1ee55a2d1aa17273213f1849efd81

17
src/pager.c
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@@ -428,6 +428,20 @@ int sqlite3PagerTrace=1; /* True to enable tracing */
*/ */
#define MAX_SECTOR_SIZE 0x10000 #define MAX_SECTOR_SIZE 0x10000
/*
** If the option SQLITE_EXTRA_DURABLE option is set at compile-time, then
** SQLite will do extra fsync() operations when synchronous==FULL to help
** ensure that transactions are durable across a power failure. Most
** applications are happy as long as transactions are consistent across
** a power failure, and are perfectly willing to lose the last transaction
** in exchange for the extra performance of avoiding directory syncs.
** And so the default SQLITE_EXTRA_DURABLE setting is off.
*/
#ifndef SQLITE_EXTRA_DURABLE
# define SQLITE_EXTRA_DURABLE 0
#endif
/* /*
** An instance of the following structure is allocated for each active ** An instance of the following structure is allocated for each active
** savepoint and statement transaction in the system. All such structures ** savepoint and statement transaction in the system. All such structures
@@ -1983,7 +1997,8 @@ static int pager_end_transaction(Pager *pPager, int hasMaster, int bCommit){
); );
sqlite3OsClose(pPager->jfd); sqlite3OsClose(pPager->jfd);
if( bDelete ){ if( bDelete ){
rc = sqlite3OsDelete(pPager->pVfs, pPager->zJournal, 0); rc = sqlite3OsDelete(pPager->pVfs, pPager->zJournal,
pPager->fullSync && SQLITE_EXTRA_DURABLE);
} }
} }
} }