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Overview
| Comment: | Add header comments for new methods in pager.c. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | begin-concurrent |
| Files: | files | file ages | folders |
| SHA1: |
437c7e219d3240767a28f73487bc26c3 |
| User & Date: | dan 2015-08-27 19:57:16 |
| Wiki: | begin-concurrent |
Context
|
2015-08-28
| ||
| 09:27 | Merge latest trunk changes with this branch. check-in: 57bc0194 user: dan tags: begin-concurrent | |
|
2015-08-27
| ||
| 19:57 | Add header comments for new methods in pager.c. check-in: 437c7e21 user: dan tags: begin-concurrent | |
| 19:22 | Add test cases for concurrent transactions and long-lived SELECT statements. check-in: fd4798cb user: dan tags: begin-concurrent | |
Changes
Changes to src/pager.c.
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assert( rc==SQLITE_OK || rc==SQLITE_NOMEM );
}
}
return rc;
}
#ifdef SQLITE_ENABLE_CONCURRENT
int sqlite3PagerBeginConcurrent(Pager *pPager){
int rc = SQLITE_OK;
if( pPager->pAllRead==0 ){
pPager->pAllRead = sqlite3BitvecCreate(pPager->dbSize);
if( pPager->pAllRead==0 ){
rc = SQLITE_NOMEM;
}
}
return rc;
}
void sqlite3PagerEndConcurrent(Pager *pPager){
sqlite3BitvecDestroy(pPager->pAllRead);
pPager->pAllRead = 0;
}
int sqlite3PagerIsWal(Pager *pPager){
return pPager->pWal!=0;
}
#endif
/*
** Free the Pager.pInJournal and Pager.pAllRead bitvec objects.
|
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assert( rc==SQLITE_OK || rc==SQLITE_NOMEM );
}
}
return rc;
}
#ifdef SQLITE_ENABLE_CONCURRENT
/*
** If they are not already, begin recording all pages read from the pager layer
** by the b-tree layer This is used by concurrent transactions. Return
** SQLITE_OK if successful, or an SQLite error code (SQLITE_NOMEM) if an error
** occurs.
*/
int sqlite3PagerBeginConcurrent(Pager *pPager){
int rc = SQLITE_OK;
if( pPager->pAllRead==0 ){
pPager->pAllRead = sqlite3BitvecCreate(pPager->dbSize);
if( pPager->pAllRead==0 ){
rc = SQLITE_NOMEM;
}
}
return rc;
}
/*
** Stop recording all pages read from the pager layer by the b-tree layer
** and discard any current records.
*/
void sqlite3PagerEndConcurrent(Pager *pPager){
sqlite3BitvecDestroy(pPager->pAllRead);
pPager->pAllRead = 0;
}
/*
** Return true if the database is in wal mode. False otherwise.
*/
int sqlite3PagerIsWal(Pager *pPager){
return pPager->pWal!=0;
}
#endif
/*
** Free the Pager.pInJournal and Pager.pAllRead bitvec objects.
|