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Overview
Comment: | Remove an obsolete layer of redirection in pager.c. (CVS 5723) |
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Downloads: | Tarball | ZIP archive | SQL archive |
Timelines: | family | ancestors | descendants | both | trunk |
Files: | files | file ages | folders |
SHA1: |
75deaa442f3a363c4ea5b6f0e510306f |
User & Date: | danielk1977 2008-09-19 09:14:44 |
Context
2008-09-19
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15:10 | In sqlite3BtreeGetMeta(), if BtShared.pPage1 is available use it instead of requesting a new reference from the pager layer. (CVS 5724) check-in: 59be34cf user: danielk1977 tags: trunk | |
09:14 | Remove an obsolete layer of redirection in pager.c. (CVS 5723) check-in: 75deaa44 user: danielk1977 tags: trunk | |
2008-09-18
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18:18 | Do not run the async tests if the async module is not installed. (CVS 5722) check-in: 4de71a4e user: drh tags: trunk | |
Changes
Changes to src/pager.c.
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** The pager is used to access a database disk file. It implements ** atomic commit and rollback through the use of a journal file that ** is separate from the database file. The pager also implements file ** locking to prevent two processes from writing the same database ** file simultaneously, or one process from reading the database while ** another is writing. ** ** @(#) $Id: pager.c,v 1.492 2008/09/18 17:34:44 danielk1977 Exp $ */ #ifndef SQLITE_OMIT_DISKIO #include "sqliteInt.h" /* ** Macros for troubleshooting. Normally turned off */ ................................................................................ ** of the page at this time, so do not do a disk read. Just fill in the ** page content with zeros. But mark the fact that we have not read the ** content by setting the PgHdr.needRead flag. Later on, if ** sqlite3PagerWrite() is called on this page or if this routine is ** called again with noContent==0, that means that the content is needed ** and the disk read should occur at that point. */ static int pagerAcquire( Pager *pPager, /* The pager open on the database file */ Pgno pgno, /* Page number to fetch */ DbPage **ppPage, /* Write a pointer to the page here */ int noContent /* Do not bother reading content from disk if true */ ){ PgHdr *pPg = 0; int rc; ................................................................................ } } } *ppPage = pPg; return SQLITE_OK; } int sqlite3PagerAcquire( Pager *pPager, /* The pager open on the database file */ Pgno pgno, /* Page number to fetch */ DbPage **ppPage, /* Write a pointer to the page here */ int noContent /* Do not bother reading content from disk if true */ ){ int rc; rc = pagerAcquire(pPager, pgno, ppPage, noContent); return rc; } /* ** Acquire a page if it is already in the in-memory cache. Do ** not read the page from disk. Return a pointer to the page, ** or 0 if the page is not in cache. ** ** See also sqlite3PagerGet(). The difference between this routine |
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14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 .... 2789 2790 2791 2792 2793 2794 2795 2796 2797 2798 2799 2800 2801 2802 2803 .... 2885 2886 2887 2888 2889 2890 2891 2892 2893 2894 2895 2896 2897 2898 |
** The pager is used to access a database disk file. It implements ** atomic commit and rollback through the use of a journal file that ** is separate from the database file. The pager also implements file ** locking to prevent two processes from writing the same database ** file simultaneously, or one process from reading the database while ** another is writing. ** ** @(#) $Id: pager.c,v 1.493 2008/09/19 09:14:44 danielk1977 Exp $ */ #ifndef SQLITE_OMIT_DISKIO #include "sqliteInt.h" /* ** Macros for troubleshooting. Normally turned off */ ................................................................................ ** of the page at this time, so do not do a disk read. Just fill in the ** page content with zeros. But mark the fact that we have not read the ** content by setting the PgHdr.needRead flag. Later on, if ** sqlite3PagerWrite() is called on this page or if this routine is ** called again with noContent==0, that means that the content is needed ** and the disk read should occur at that point. */ int sqlite3PagerAcquire( Pager *pPager, /* The pager open on the database file */ Pgno pgno, /* Page number to fetch */ DbPage **ppPage, /* Write a pointer to the page here */ int noContent /* Do not bother reading content from disk if true */ ){ PgHdr *pPg = 0; int rc; ................................................................................ } } } *ppPage = pPg; return SQLITE_OK; } /* ** Acquire a page if it is already in the in-memory cache. Do ** not read the page from disk. Return a pointer to the page, ** or 0 if the page is not in cache. ** ** See also sqlite3PagerGet(). The difference between this routine |