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Create and use a new pager interface sqlite3PagerUnrefNotNull() that works

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just like sqlite3PagerUnref() but guarantees that its argument is not a
NULL pointer.

FossilOrigin-Name: e00f37e2333cac5b53e17cf764ab56c4fcd5f617
This commit is contained in:
drh
2013-12-13 19:35:21 +00:00
parent 5d56dd2867
commit da8a330a03
5 changed files with 31 additions and 26 deletions
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3
src/btree.c
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@@ -1673,10 +1673,11 @@ static void releasePage(MemPage *pPage){
if( pPage ){
assert( pPage->aData );
assert( pPage->pBt );
assert( pPage->pDbPage!=0 );
assert( sqlite3PagerGetExtra(pPage->pDbPage) == (void*)pPage );
assert( sqlite3PagerGetData(pPage->pDbPage)==pPage->aData );
assert( sqlite3_mutex_held(pPage->pBt->mutex) );
sqlite3PagerUnref(pPage->pDbPage);
sqlite3PagerUnrefNotNull(pPage->pDbPage);
}
}