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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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2
src/insert.c
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@@ -237,6 +237,7 @@ void sqlite3AutoincrementBegin(Parse *pParse){
for(p = pParse->pAinc; p; p = p->pNext){
pDb = &db->aDb[p->iDb];
memId = p->regCtr;
assert( sqlite3SchemaMutexHeld(db, 0, pDb->pSchema) );
sqlite3OpenTable(pParse, 0, p->iDb, pDb->pSchema->pSeqTab, OP_OpenRead);
addr = sqlite3VdbeCurrentAddr(v);
sqlite3VdbeAddOp4(v, OP_String8, 0, memId-1, 0, p->pTab->zName, 0);
@@ -287,6 +288,7 @@ void sqlite3AutoincrementEnd(Parse *pParse){
int memId = p->regCtr;
iRec = sqlite3GetTempReg(pParse);
assert( sqlite3SchemaMutexHeld(db, 0, pDb->pSchema) );
sqlite3OpenTable(pParse, 0, p->iDb, pDb->pSchema->pSeqTab, OP_OpenWrite);
j1 = sqlite3VdbeAddOp1(v, OP_NotNull, memId+1);
j2 = sqlite3VdbeAddOp0(v, OP_Rewind);