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Limits.

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Nuno Cruces
2023-11-24 17:25:02 +00:00
parent 1acb95917a
commit 5653efa70e
10 changed files with 87 additions and 25 deletions
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16
vtab.go
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@@ -70,7 +70,7 @@ func implements[T any](typ reflect.Type) bool {
//
// https://sqlite.org/c3ref/declare_vtab.html
func (c *Conn) DeclareVtab(sql string) error {
// defer c.arena.reset()
// The arena will be cleared by the prepare or exec method.
sqlPtr := c.arena.string(sql)
r := c.call(c.api.declareVTab, uint64(c.handle), uint64(sqlPtr))
return c.error(r)
@@ -255,7 +255,7 @@ type IndexConstraintUsage struct {
//
// https://sqlite.org/c3ref/vtab_rhs_value.html
func (idx *IndexInfo) RHSValue(column int) (*Value, error) {
// defer idx.c.arena.reset()
// The arena will be cleared by the prepare or exec method.
valPtr := idx.c.arena.new(ptrlen)
r := idx.c.call(idx.c.api.vtabRHSValue,
uint64(idx.handle), uint64(column), uint64(valPtr))
@@ -369,7 +369,7 @@ func vtabModuleCallback(i int) func(_ context.Context, _ api.Module, _, _, _, _,
for i := uint32(0); i < argc; i++ {
ptr := util.ReadUint32(mod, argv+i*ptrlen)
arg[i+1] = reflect.ValueOf(util.ReadString(mod, ptr, _MAX_STRING))
arg[i+1] = reflect.ValueOf(util.ReadString(mod, ptr, _MAX_SQL_LENGTH))
}
module := vtabGetHandle(ctx, mod, pMod)
@@ -425,13 +425,13 @@ func vtabUpdateCallback(ctx context.Context, mod api.Module, pVTab, argc, argv,
func vtabRenameCallback(ctx context.Context, mod api.Module, pVTab, zNew uint32) uint32 {
vtab := vtabGetHandle(ctx, mod, pVTab).(VTabRenamer)
err := vtab.Rename(util.ReadString(mod, zNew, _MAX_STRING))
err := vtab.Rename(util.ReadString(mod, zNew, _MAX_NAME))
return vtabError(ctx, mod, pVTab, _VTAB_ERROR, err)
}
func vtabFindFuncCallback(ctx context.Context, mod api.Module, pVTab, nArg, zName, pxFunc uint32) uint32 {
vtab := vtabGetHandle(ctx, mod, pVTab).(VTabOverloader)
fn, op := vtab.FindFunction(int(nArg), util.ReadString(mod, zName, _MAX_STRING))
fn, op := vtab.FindFunction(int(nArg), util.ReadString(mod, zName, _MAX_NAME))
if fn != nil {
handle := util.AddHandle(ctx, fn)
util.WriteUint32(mod, pxFunc, handle)
@@ -444,8 +444,8 @@ func vtabFindFuncCallback(ctx context.Context, mod api.Module, pVTab, nArg, zNam
func vtabIntegrityCallback(ctx context.Context, mod api.Module, pVTab, zSchema, zTabName, mFlags, pzErr uint32) uint32 {
vtab := vtabGetHandle(ctx, mod, pVTab).(VTabChecker)
schema := util.ReadString(mod, zSchema, _MAX_STRING)
table := util.ReadString(mod, zTabName, _MAX_STRING)
schema := util.ReadString(mod, zSchema, _MAX_NAME)
table := util.ReadString(mod, zTabName, _MAX_NAME)
err := vtab.Integrity(schema, table, int(mFlags))
// xIntegrity should return OK - even if it finds problems in the content of the virtual table.
// https://sqlite.org/vtab.html#xintegrity
@@ -518,7 +518,7 @@ func cursorFilterCallback(ctx context.Context, mod api.Module, pCur, idxNum, idx
args := callbackArgs(db, argc, argv)
var idxName string
if idxStr != 0 {
idxName = util.ReadString(mod, idxStr, _MAX_STRING)
idxName = util.ReadString(mod, idxStr, _MAX_NAME)
}
err := cursor.Filter(int(idxNum), idxName, args...)
return vtabError(ctx, mod, pCur, _CURSOR_ERROR, err)