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Add a description of access rules for the Schema object and lots of asserts

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to verify that the access rules are followed.

FossilOrigin-Name: ae8374af057b6e6546e9265148cfffe32fcb0849
This commit is contained in:
drh
2011-04-04 18:22:02 +00:00
parent f32021de6f
commit 2120608e0f
15 changed files with 112 additions and 27 deletions
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4
src/analyze.c
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@@ -149,6 +149,7 @@ static void analyzeOneTable(
assert( sqlite3BtreeHoldsAllMutexes(db) );
iDb = sqlite3SchemaToIndex(db, pTab->pSchema);
assert( iDb>=0 );
assert( sqlite3SchemaMutexHeld(db, iDb, 0) );
#ifndef SQLITE_OMIT_AUTHORIZATION
if( sqlite3AuthCheck(pParse, SQLITE_ANALYZE, pTab->zName, 0,
db->aDb[iDb].zName ) ){
@@ -390,6 +391,7 @@ static void analyzeDatabase(Parse *pParse, int iDb){
pParse->nTab += 2;
openStatTable(pParse, iDb, iStatCur, 0, 0);
iMem = pParse->nMem+1;
assert( sqlite3SchemaMutexHeld(db, iDb, 0) );
for(k=sqliteHashFirst(&pSchema->tblHash); k; k=sqliteHashNext(k)){
Table *pTab = (Table*)sqliteHashData(k);
analyzeOneTable(pParse, pTab, 0, iStatCur, iMem);
@@ -600,9 +602,9 @@ int sqlite3AnalysisLoad(sqlite3 *db, int iDb){
assert( iDb>=0 && iDb<db->nDb );
assert( db->aDb[iDb].pBt!=0 );
assert( sqlite3BtreeHoldsMutex(db->aDb[iDb].pBt) );
/* Clear any prior statistics */
assert( sqlite3SchemaMutexHeld(db, iDb, 0) );
for(i=sqliteHashFirst(&db->aDb[iDb].pSchema->idxHash);i;i=sqliteHashNext(i)){
Index *pIdx = sqliteHashData(i);
sqlite3DefaultRowEst(pIdx);