Configure heap limits.

Windows and unix allocators would panic when asked to allocate the maximum size.

.github/workflows/repro.sh

@@ -3,13 +3,13 @@ set -euo pipefail
 
 if [[ "$OSTYPE" == "linux"* ]]; then
   WASI_SDK="https://github.com/WebAssembly/wasi-sdk/releases/download/wasi-sdk-24/wasi-sdk-24.0-x86_64-linux.tar.gz"
-  BINARYEN="https://github.com/WebAssembly/binaryen/releases/download/version_118/binaryen-version_118-x86_64-linux.tar.gz"
+  BINARYEN="https://github.com/WebAssembly/binaryen/releases/download/version_119/binaryen-version_119-x86_64-linux.tar.gz"
 elif [[ "$OSTYPE" == "darwin"* ]]; then
   WASI_SDK="https://github.com/WebAssembly/wasi-sdk/releases/download/wasi-sdk-24/wasi-sdk-24.0-x86_64-macos.tar.gz"
-  BINARYEN="https://github.com/WebAssembly/binaryen/releases/download/version_118/binaryen-version_118-x86_64-macos.tar.gz"
+  BINARYEN="https://github.com/WebAssembly/binaryen/releases/download/version_119/binaryen-version_119-x86_64-macos.tar.gz"
 elif [[ "$OSTYPE" == "msys" || "$OSTYPE" == "cygwin" ]]; then
   WASI_SDK="https://github.com/WebAssembly/wasi-sdk/releases/download/wasi-sdk-24/wasi-sdk-24.0-x86_64-windows.tar.gz"
-  BINARYEN="https://github.com/WebAssembly/binaryen/releases/download/version_118/binaryen-version_118-x86_64-windows.tar.gz"
+  BINARYEN="https://github.com/WebAssembly/binaryen/releases/download/version_119/binaryen-version_119-x86_64-windows.tar.gz"
 fi
 
 # Download tools

blob.go

@@ -21,6 +21,8 @@ type Blob struct {
 	bytes  int64
 	offset int64
 	handle uint32
+	bufptr uint32
+	buflen int64
 }
 
 var _ io.ReadWriteSeeker = &Blob{}
@@ -66,7 +68,7 @@ func (b *Blob) Close() error {
 	}
 
 	r := b.c.call("sqlite3_blob_close", uint64(b.handle))
-
+	b.c.free(b.bufptr)
 	b.handle = 0
 	return b.c.error(r)
 }
@@ -86,17 +88,18 @@ func (b *Blob) Read(p []byte) (n int, err error) {
 		return 0, io.EOF
 	}
 
-	avail := b.bytes - b.offset
 	want := int64(len(p))
+	avail := b.bytes - b.offset
 	if want > avail {
 		want = avail
 	}
-
-	defer b.c.arena.mark()()
-	ptr := b.c.arena.new(uint64(want))
+	if want > b.buflen {
+		b.bufptr = b.c.realloc(b.bufptr, uint64(want))
+		b.buflen = want
+	}
 
 	r := b.c.call("sqlite3_blob_read", uint64(b.handle),
-		uint64(ptr), uint64(want), uint64(b.offset))
+		uint64(b.bufptr), uint64(want), uint64(b.offset))
 	err = b.c.error(r)
 	if err != nil {
 		return 0, err
@@ -106,7 +109,7 @@ func (b *Blob) Read(p []byte) (n int, err error) {
 		err = io.EOF
 	}
 
-	copy(p, util.View(b.c.mod, ptr, uint64(want)))
+	copy(p, util.View(b.c.mod, b.bufptr, uint64(want)))
 	return int(want), err
 }
 
@@ -123,19 +126,20 @@ func (b *Blob) WriteTo(w io.Writer) (n int64, err error) {
 	if want > avail {
 		want = avail
 	}
-
-	defer b.c.arena.mark()()
-	ptr := b.c.arena.new(uint64(want))
+	if want > b.buflen {
+		b.bufptr = b.c.realloc(b.bufptr, uint64(want))
+		b.buflen = want
+	}
 
 	for want > 0 {
 		r := b.c.call("sqlite3_blob_read", uint64(b.handle),
-			uint64(ptr), uint64(want), uint64(b.offset))
+			uint64(b.bufptr), uint64(want), uint64(b.offset))
 		err = b.c.error(r)
 		if err != nil {
 			return n, err
 		}
 
-		mem := util.View(b.c.mod, ptr, uint64(want))
+		mem := util.View(b.c.mod, b.bufptr, uint64(want))
 		m, err := w.Write(mem[:want])
 		b.offset += int64(m)
 		n += int64(m)
@@ -159,11 +163,15 @@ func (b *Blob) WriteTo(w io.Writer) (n int64, err error) {
 //
 // https://sqlite.org/c3ref/blob_write.html
 func (b *Blob) Write(p []byte) (n int, err error) {
-	defer b.c.arena.mark()()
-	ptr := b.c.arena.bytes(p)
+	want := int64(len(p))
+	if want > b.buflen {
+		b.bufptr = b.c.realloc(b.bufptr, uint64(want))
+		b.buflen = want
+	}
+	util.WriteBytes(b.c.mod, b.bufptr, p)
 
 	r := b.c.call("sqlite3_blob_write", uint64(b.handle),
-		uint64(ptr), uint64(len(p)), uint64(b.offset))
+		uint64(b.bufptr), uint64(want), uint64(b.offset))
 	err = b.c.error(r)
 	if err != nil {
 		return 0, err
@@ -187,16 +195,17 @@ func (b *Blob) ReadFrom(r io.Reader) (n int64, err error) {
 	if want < 1 {
 		want = 1
 	}
-
-	defer b.c.arena.mark()()
-	ptr := b.c.arena.new(uint64(want))
+	if want > b.buflen {
+		b.bufptr = b.c.realloc(b.bufptr, uint64(want))
+		b.buflen = want
+	}
 
 	for {
-		mem := util.View(b.c.mod, ptr, uint64(want))
+		mem := util.View(b.c.mod, b.bufptr, uint64(want))
 		m, err := r.Read(mem[:want])
 		if m > 0 {
 			r := b.c.call("sqlite3_blob_write", uint64(b.handle),
-				uint64(ptr), uint64(m), uint64(b.offset))
+				uint64(b.bufptr), uint64(m), uint64(b.offset))
 			err := b.c.error(r)
 			if err != nil {
 				return n, err

config.go

@@ -294,3 +294,17 @@ func autoVacuumCallback(ctx context.Context, mod api.Module, pApp, zSchema, nDbP
 	schema := util.ReadString(mod, zSchema, _MAX_NAME)
 	return uint32(fn(schema, uint(nDbPage), uint(nFreePage), uint(nBytePerPage)))
 }
+
+// SoftHeapLimit imposes a soft limit on heap size.
+//
+// https://sqlite.org/c3ref/hard_heap_limit64.html
+func (c *Conn) SoftHeapLimit(n int64) int64 {
+	return int64(c.call("sqlite3_soft_heap_limit64", uint64(n)))
+}
+
+// SoftHeapLimit imposes a hard limit on heap size.
+//
+// https://sqlite.org/c3ref/hard_heap_limit64.html
+func (c *Conn) HardHeapLimit(n int64) int64 {
+	return int64(c.call("sqlite3_hard_heap_limit64", uint64(n)))
+}

const.go

@@ -7,13 +7,10 @@ const (
 	_ROW  = 100 /* sqlite3_step() has another row ready */
 	_DONE = 101 /* sqlite3_step() has finished executing */
 
-	_UTF8 = 1
-
-	_MAX_NAME            = 1e6 // Self-imposed limit for most NUL terminated strings.
-	_MAX_LENGTH          = 1e9
-	_MAX_SQL_LENGTH      = 1e9
-	_MAX_ALLOCATION_SIZE = 0x7ffffeff
-	_MAX_FUNCTION_ARG    = 100
+	_MAX_NAME         = 1e6 // Self-imposed limit for most NUL terminated strings.
+	_MAX_LENGTH       = 1e9
+	_MAX_SQL_LENGTH   = 1e9
+	_MAX_FUNCTION_ARG = 100
 
 	ptrlen = 4
 )

context.go

@@ -84,9 +84,8 @@ func (ctx Context) ResultFloat(value float64) {
 // https://sqlite.org/c3ref/result_blob.html
 func (ctx Context) ResultText(value string) {
 	ptr := ctx.c.newString(value)
-	ctx.c.call("sqlite3_result_text64",
-		uint64(ctx.handle), uint64(ptr), uint64(len(value)),
-		uint64(ctx.c.freer), _UTF8)
+	ctx.c.call("sqlite3_result_text_go",
+		uint64(ctx.handle), uint64(ptr), uint64(len(value)))
 }
 
 // ResultRawText sets the text result of the function to a []byte.
@@ -94,9 +93,8 @@ func (ctx Context) ResultText(value string) {
 // https://sqlite.org/c3ref/result_blob.html
 func (ctx Context) ResultRawText(value []byte) {
 	ptr := ctx.c.newBytes(value)
-	ctx.c.call("sqlite3_result_text64",
-		uint64(ctx.handle), uint64(ptr), uint64(len(value)),
-		uint64(ctx.c.freer), _UTF8)
+	ctx.c.call("sqlite3_result_text_go",
+		uint64(ctx.handle), uint64(ptr), uint64(len(value)))
 }
 
 // ResultBlob sets the result of the function to a []byte.
@@ -105,9 +103,8 @@ func (ctx Context) ResultRawText(value []byte) {
 // https://sqlite.org/c3ref/result_blob.html
 func (ctx Context) ResultBlob(value []byte) {
 	ptr := ctx.c.newBytes(value)
-	ctx.c.call("sqlite3_result_blob64",
-		uint64(ctx.handle), uint64(ptr), uint64(len(value)),
-		uint64(ctx.c.freer))
+	ctx.c.call("sqlite3_result_blob_go",
+		uint64(ctx.handle), uint64(ptr), uint64(len(value)))
 }
 
 // ResultZeroBlob sets the result of the function to a zero-filled, length n BLOB.
@@ -154,9 +151,8 @@ func (ctx Context) resultRFC3339Nano(value time.Time) {
 	buf := util.View(ctx.c.mod, ptr, maxlen)
 	buf = value.AppendFormat(buf[:0], time.RFC3339Nano)
 
-	ctx.c.call("sqlite3_result_text64",
-		uint64(ctx.handle), uint64(ptr), uint64(len(buf)),
-		uint64(ctx.c.freer), _UTF8)
+	ctx.c.call("sqlite3_result_text_go",
+		uint64(ctx.handle), uint64(ptr), uint64(len(buf)))
 }
 
 // ResultPointer sets the result of the function to NULL, just like [Context.ResultNull],

embed/bcw2/.gitignore

@@ -0,0 +1,2 @@
+build/
+sqlite/

embed/exports.txt

@@ -1,7 +1,4 @@
 aligned_alloc
-free
-malloc
-malloc_destructor
 sqlite3_anycollseq_init
 sqlite3_autovacuum_pages_go
 sqlite3_backup_finish
@@ -9,7 +6,7 @@ sqlite3_backup_init
 sqlite3_backup_pagecount
 sqlite3_backup_remaining
 sqlite3_backup_step
-sqlite3_bind_blob64
+sqlite3_bind_blob_go
 sqlite3_bind_double
 sqlite3_bind_int64
 sqlite3_bind_null
@@ -17,7 +14,7 @@ sqlite3_bind_parameter_count
 sqlite3_bind_parameter_index
 sqlite3_bind_parameter_name
 sqlite3_bind_pointer_go
-sqlite3_bind_text64
+sqlite3_bind_text_go
 sqlite3_bind_value
 sqlite3_bind_zeroblob64
 sqlite3_blob_bytes
@@ -74,17 +71,21 @@ sqlite3_filename_database
 sqlite3_filename_journal
 sqlite3_filename_wal
 sqlite3_finalize
+sqlite3_free
 sqlite3_get_autocommit
 sqlite3_get_auxdata
+sqlite3_hard_heap_limit64
 sqlite3_interrupt
 sqlite3_last_insert_rowid
 sqlite3_limit
+sqlite3_malloc64
 sqlite3_open_v2
 sqlite3_overload_function
 sqlite3_prepare_v3
 sqlite3_progress_handler_go
+sqlite3_realloc64
 sqlite3_reset
-sqlite3_result_blob64
+sqlite3_result_blob_go
 sqlite3_result_double
 sqlite3_result_error
 sqlite3_result_error_code
@@ -93,13 +94,14 @@ sqlite3_result_error_toobig
 sqlite3_result_int64
 sqlite3_result_null
 sqlite3_result_pointer_go
-sqlite3_result_text64
+sqlite3_result_text_go
 sqlite3_result_value
 sqlite3_result_zeroblob64
 sqlite3_rollback_hook_go
 sqlite3_set_authorizer_go
 sqlite3_set_auxdata_go
 sqlite3_set_last_insert_rowid
+sqlite3_soft_heap_limit64
 sqlite3_step
 sqlite3_stmt_busy
 sqlite3_stmt_readonly

ext/blobio/blob.go

@@ -11,11 +11,11 @@ import (
 
 // Register registers the SQL functions:
 //
-//	readblob(schema, table, column, rowid, offset, n)
+//	readblob(schema, table, column, rowid, offset, n/writer)
 //
 // Reads n bytes of a blob, starting at offset.
 //
-//	writeblob(schema, table, column, rowid, offset, data)
+//	writeblob(schema, table, column, rowid, offset, data/reader)
 //
 // Writes data into a blob, at the given offset.
 //
@@ -27,6 +27,10 @@ import (
 // using [sqlite3.BindPointer] or [sqlite3.Pointer].
 // The optional args will be passed to the callback,
 // along with the [sqlite3.Blob] handle.
+// The [sqlite3.Blob] handle is only valid during
+// the execution of the callback. Callers cannot
+// read or write to the handle after the callback
+// exits.
 //
 // https://sqlite.org/c3ref/blob.html
 func Register(db *sqlite3.Conn) error {
@@ -52,19 +56,24 @@ func readblob(ctx sqlite3.Context, arg ...sqlite3.Value) {
 		return // notest
 	}
 
-	n := arg[5].Int64()
-	if n <= 0 {
-		return
+	if p, ok := arg[5].Pointer().(io.Writer); ok {
+		var n int64
+		n, err = blob.WriteTo(p)
+		ctx.ResultInt64(n)
+	} else {
+		n := arg[5].Int64()
+		if n <= 0 {
+			return
+		}
+		buf := make([]byte, n)
+		_, err = io.ReadFull(blob, buf)
+		ctx.ResultBlob(buf)
 	}
-	buf := make([]byte, n)
-
-	_, err = io.ReadFull(blob, buf)
 	if err != nil {
 		ctx.ResultError(err)
 		return // notest
 	}
 
-	ctx.ResultBlob(buf)
 	setAuxBlob(ctx, blob, false)
 }
 
@@ -82,7 +91,9 @@ func writeblob(ctx sqlite3.Context, arg ...sqlite3.Value) {
 	}
 
 	if p, ok := arg[5].Pointer().(io.Reader); ok {
-		_, err = blob.ReadFrom(p)
+		var n int64
+		n, err = blob.ReadFrom(p)
+		ctx.ResultInt64(n)
 	} else {
 		_, err = blob.Write(arg[5].RawBlob())
 	}

ext/blobio/blob_test.go

@@ -34,23 +34,26 @@ func Example() {
 	const message = "Hello BLOB!"
 
 	// Create the BLOB.
-	_, err = db.Exec(`INSERT INTO test VALUES (?)`, sqlite3.ZeroBlob(len(message)))
+	r, err := db.Exec(`INSERT INTO test VALUES (?)`, sqlite3.ZeroBlob(len(message)))
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	id, err := r.LastInsertId()
 	if err != nil {
 		log.Fatal(err)
 	}
 
 	// Write the BLOB.
-	_, err = db.Exec(`SELECT writeblob('main', 'test', 'col', last_insert_rowid(), 0, ?)`, message)
+	_, err = db.Exec(`SELECT writeblob('main', 'test', 'col', ?, 0, ?)`,
+		id, message)
 	if err != nil {
 		log.Fatal(err)
 	}
 
 	// Read the BLOB.
-	_, err = db.Exec(`SELECT openblob('main', 'test', 'col', rowid, false, ?) FROM test`,
-		sqlite3.Pointer[blobio.OpenCallback](func(blob *sqlite3.Blob, _ ...sqlite3.Value) error {
-			_, err = blob.WriteTo(os.Stdout)
-			return err
-		}))
+	_, err = db.Exec(`SELECT readblob('main', 'test', 'col', ?, 0, ?)`,
+		id, sqlite3.Pointer(os.Stdout))
 	if err != nil {
 		log.Fatal(err)
 	}

go.mod

@@ -10,7 +10,7 @@ require (
 	github.com/ncruces/sort v0.1.2
 	github.com/psanford/httpreadat v0.1.0
 	github.com/tetratelabs/wazero v1.8.0
-	golang.org/x/crypto v0.26.0
+	golang.org/x/crypto v0.27.0
 	golang.org/x/sync v0.8.0
 	golang.org/x/sys v0.25.0
 	golang.org/x/text v0.18.0

go.sum

@@ -10,8 +10,8 @@ github.com/psanford/httpreadat v0.1.0 h1:VleW1HS2zO7/4c7c7zNl33fO6oYACSagjJIyMIw
 github.com/psanford/httpreadat v0.1.0/go.mod h1:Zg7P+TlBm3bYbyHTKv/EdtSJZn3qwbPwpfZ/I9GKCRE=
 github.com/tetratelabs/wazero v1.8.0 h1:iEKu0d4c2Pd+QSRieYbnQC9yiFlMS9D+Jr0LsRmcF4g=
 github.com/tetratelabs/wazero v1.8.0/go.mod h1:yAI0XTsMBhREkM/YDAK/zNou3GoiAce1P6+rp/wQhjs=
-golang.org/x/crypto v0.26.0 h1:RrRspgV4mU+YwB4FYnuBoKsUapNIL5cohGAmSH3azsw=
-golang.org/x/crypto v0.26.0/go.mod h1:GY7jblb9wI+FOo5y8/S2oY4zWP07AkOJ4+jxCqdqn54=
+golang.org/x/crypto v0.27.0 h1:GXm2NjJrPaiv/h1tb2UH8QfgC/hOf/+z0p6PT8o1w7A=
+golang.org/x/crypto v0.27.0/go.mod h1:1Xngt8kV6Dvbssa53Ziq6Eqn0HqbZi5Z6R0ZpwQzt70=
 golang.org/x/sync v0.8.0 h1:3NFvSEYkUoMifnESzZl15y791HH1qU2xm6eCJU5ZPXQ=
 golang.org/x/sync v0.8.0/go.mod h1:Czt+wKu1gCyEFDUtn0jG5QVvpJ6rzVqr5aXyt9drQfk=
 golang.org/x/sys v0.25.0 h1:r+8e+loiHxRqhXVl6ML1nO3l1+oFoWbnlu2Ehimmi34=

go.work.sum

@@ -5,5 +5,6 @@ golang.org/x/term v0.20.0/go.mod h1:8UkIAJTvZgivsXaD6/pH6U9ecQzZ45awqEOzuCvwpFY=
 golang.org/x/term v0.21.0/go.mod h1:ooXLefLobQVslOqselCNF4SxFAaoS6KujMbsGzSDmX0=
 golang.org/x/term v0.22.0/go.mod h1:F3qCibpT5AMpCRfhfT53vVJwhLtIVHhB9XDjfFvnMI4=
 golang.org/x/term v0.23.0/go.mod h1:DgV24QBUrK6jhZXl+20l6UWznPlwAHm1Q1mGHtydmSk=
+golang.org/x/term v0.24.0/go.mod h1:lOBK/LVxemqiMij05LGJ0tzNr8xlmwBRJ81PX6wVLH8=
 golang.org/x/tools v0.6.0/go.mod h1:Xwgl3UAJ/d3gWutnCtw505GrjyAbvKui8lOU390QaIU=
 golang.org/x/tools v0.21.1-0.20240508182429-e35e4ccd0d2d/go.mod h1:aiJjzUbINMkxbQROHiO6hDPo2LHcIPhhQsa9DLh0yGk=

internal/alloc/alloc_unix.go

@@ -39,7 +39,7 @@ type mmappedMemory struct {
 func (m *mmappedMemory) Reallocate(size uint64) []byte {
 	com := uint64(len(m.buf))
 	res := uint64(cap(m.buf))
-	if com < size && size < res {
+	if com < size && size <= res {
 		// Round up to the page size.
 		rnd := uint64(unix.Getpagesize() - 1)
 		new := (size + rnd) &^ rnd

internal/alloc/alloc_windows.go

@@ -48,7 +48,7 @@ type virtualMemory struct {
 func (m *virtualMemory) Reallocate(size uint64) []byte {
 	com := uint64(len(m.buf))
 	res := uint64(cap(m.buf))
-	if com < size && size < res {
+	if com < size && size <= res {
 		// Round up to the page size.
 		rnd := uint64(windows.Getpagesize() - 1)
 		new := (size + rnd) &^ rnd

sqlite.go

@@ -86,7 +86,6 @@ type sqlite struct {
 		mask uint32
 	}
 	stack [9]uint64
-	freer uint32
 }
 
 func instantiateSQLite() (sqlt *sqlite, err error) {
@@ -102,14 +101,7 @@ func instantiateSQLite() (sqlt *sqlite, err error) {
 	if err != nil {
 		return nil, err
 	}
-
-	global := sqlt.mod.ExportedGlobal("malloc_destructor")
-	if global == nil {
-		return nil, util.BadBinaryErr
-	}
-
-	sqlt.freer = util.ReadUint32(sqlt.mod, uint32(global.Get()))
-	if sqlt.freer == 0 {
+	if sqlt.getfn("sqlite3_progress_handler_go") == nil {
 		return nil, util.BadBinaryErr
 	}
 	return sqlt, nil
@@ -196,14 +188,19 @@ func (sqlt *sqlite) free(ptr uint32) {
 	if ptr == 0 {
 		return
 	}
-	sqlt.call("free", uint64(ptr))
+	sqlt.call("sqlite3_free", uint64(ptr))
 }
 
 func (sqlt *sqlite) new(size uint64) uint32 {
-	if size > _MAX_ALLOCATION_SIZE {
+	ptr := uint32(sqlt.call("sqlite3_malloc64", size))
+	if ptr == 0 && size != 0 {
 		panic(util.OOMErr)
 	}
-	ptr := uint32(sqlt.call("malloc", size))
+	return ptr
+}
+
+func (sqlt *sqlite) realloc(ptr uint32, size uint64) uint32 {
+	ptr = uint32(sqlt.call("sqlite3_realloc64", uint64(ptr), size))
 	if ptr == 0 && size != 0 {
 		panic(util.OOMErr)
 	}
@@ -214,7 +211,11 @@ func (sqlt *sqlite) newBytes(b []byte) uint32 {
 	if (*[0]byte)(b) == nil {
 		return 0
 	}
-	ptr := sqlt.new(uint64(len(b)))
+	size := len(b)
+	if size == 0 {
+		size = 1
+	}
+	ptr := sqlt.new(uint64(size))
 	util.WriteBytes(sqlt.mod, ptr, b)
 	return ptr
 }

sqlite3/bind.c

@@ -0,0 +1,13 @@
+#include <stdlib.h>
+
+#include "sqlite3.h"
+
+int sqlite3_bind_text_go(sqlite3_stmt* stmt, int i, const char* zData,
+                         sqlite3_uint64 nData) {
+  return sqlite3_bind_text64(stmt, i, zData, nData, &sqlite3_free, SQLITE_UTF8);
+}
+
+int sqlite3_bind_blob_go(sqlite3_stmt* stmt, int i, const char* zData,
+                         sqlite3_uint64 nData) {
+  return sqlite3_bind_blob64(stmt, i, zData, nData, &sqlite3_free);
+}

sqlite3/main.c

@@ -9,16 +9,16 @@
 #include "ext/series.c"
 #include "ext/uint.c"
 // Bindings
+#include "bind.c"
 #include "column.c"
 #include "func.c"
 #include "hooks.c"
 #include "pointer.c"
+#include "result.c"
 #include "time.c"
 #include "vfs.c"
 #include "vtab.c"
 
-sqlite3_destructor_type malloc_destructor = &free;
-
 __attribute__((constructor)) void init() {
   sqlite3_initialize();
   sqlite3_auto_extension((void (*)(void))sqlite3_base_init);

sqlite3/result.c

@@ -0,0 +1,13 @@
+#include <stdlib.h>
+
+#include "sqlite3.h"
+
+void sqlite3_result_text_go(sqlite3_context* ctx, const char* zData,
+                            sqlite3_uint64 nData) {
+  sqlite3_result_text64(ctx, zData, nData, &sqlite3_free, SQLITE_UTF8);
+}
+
+void sqlite3_result_blob_go(sqlite3_context* ctx, const void* zData,
+                            sqlite3_uint64 nData) {
+  sqlite3_result_blob64(ctx, zData, nData, &sqlite3_free);
+}

sqlite3/sqlite_opt.h

@@ -2,7 +2,6 @@
 
 #define SQLITE_DQS 0
 #define SQLITE_THREADSAFE 0
-#define SQLITE_DEFAULT_MEMSTATUS 0
 #define SQLITE_DEFAULT_WAL_SYNCHRONOUS 1
 #define SQLITE_LIKE_DOESNT_MATCH_BLOBS
 #define SQLITE_MAX_EXPR_DEPTH 0
@@ -13,6 +12,7 @@
 #define SQLITE_OMIT_AUTOINIT
 
 // We need these:
+// #define SQLITE_DEFAULT_MEMSTATUS 0
 // #define SQLITE_OMIT_DECLTYPE
 // #define SQLITE_OMIT_PROGRESS_CALLBACK
 

sqlite_test.go

@@ -3,7 +3,6 @@ package sqlite3
 import (
 	"bytes"
 	"math"
-	"os"
 	"testing"
 
 	"github.com/ncruces/go-sqlite3/internal/util"
@@ -39,7 +38,7 @@ func Test_sqlite_call_closed(t *testing.T) {
 	sqlite.close()
 
 	defer func() { _ = recover() }()
-	sqlite.call("free")
+	sqlite.call("sqlite3_free")
 	t.Error("want panic")
 }
 
@@ -57,19 +56,6 @@ func Test_sqlite_new(t *testing.T) {
 		sqlite.new(math.MaxUint32)
 		t.Error("want panic")
 	})
-
-	t.Run("_MAX_ALLOCATION_SIZE", func(t *testing.T) {
-		if testing.Short() {
-			t.Skip("skipping in short mode")
-		}
-		if os.Getenv("CI") != "" {
-			t.Skip("skipping in CI")
-		}
-		defer func() { _ = recover() }()
-		sqlite.new(_MAX_ALLOCATION_SIZE)
-		sqlite.new(_MAX_ALLOCATION_SIZE)
-		t.Error("want panic")
-	})
 }
 
 func Test_sqlite_newArena(t *testing.T) {

stmt.go

@@ -246,10 +246,9 @@ func (s *Stmt) BindText(param int, value string) error {
 		return TOOBIG
 	}
 	ptr := s.c.newString(value)
-	r := s.c.call("sqlite3_bind_text64",
+	r := s.c.call("sqlite3_bind_text_go",
 		uint64(s.handle), uint64(param),
-		uint64(ptr), uint64(len(value)),
-		uint64(s.c.freer), _UTF8)
+		uint64(ptr), uint64(len(value)))
 	return s.c.error(r)
 }
 
@@ -262,10 +261,9 @@ func (s *Stmt) BindRawText(param int, value []byte) error {
 		return TOOBIG
 	}
 	ptr := s.c.newBytes(value)
-	r := s.c.call("sqlite3_bind_text64",
+	r := s.c.call("sqlite3_bind_text_go",
 		uint64(s.handle), uint64(param),
-		uint64(ptr), uint64(len(value)),
-		uint64(s.c.freer), _UTF8)
+		uint64(ptr), uint64(len(value)))
 	return s.c.error(r)
 }
 
@@ -279,10 +277,9 @@ func (s *Stmt) BindBlob(param int, value []byte) error {
 		return TOOBIG
 	}
 	ptr := s.c.newBytes(value)
-	r := s.c.call("sqlite3_bind_blob64",
+	r := s.c.call("sqlite3_bind_blob_go",
 		uint64(s.handle), uint64(param),
-		uint64(ptr), uint64(len(value)),
-		uint64(s.c.freer))
+		uint64(ptr), uint64(len(value)))
 	return s.c.error(r)
 }
 
@@ -335,10 +332,9 @@ func (s *Stmt) bindRFC3339Nano(param int, value time.Time) error {
 	buf := util.View(s.c.mod, ptr, maxlen)
 	buf = value.AppendFormat(buf[:0], time.RFC3339Nano)
 
-	r := s.c.call("sqlite3_bind_text64",
+	r := s.c.call("sqlite3_bind_text_go",
 		uint64(s.handle), uint64(param),
-		uint64(ptr), uint64(len(buf)),
-		uint64(s.c.freer), _UTF8)
+		uint64(ptr), uint64(len(buf)))
 	return s.c.error(r)
 }
 

tests/config_test.go

@@ -0,0 +1,427 @@
+package tests
+
+import (
+	"errors"
+	"math"
+	"net/url"
+	"path/filepath"
+	"testing"
+
+	"github.com/ncruces/go-sqlite3"
+	"github.com/ncruces/go-sqlite3/vfs"
+	"github.com/ncruces/go-sqlite3/vfs/memdb"
+)
+
+func TestConn_Config(t *testing.T) {
+	t.Parallel()
+
+	db, err := sqlite3.Open(":memory:")
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer db.Close()
+
+	o, err := db.Config(sqlite3.DBCONFIG_DEFENSIVE)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if o != false {
+		t.Error("want false")
+	}
+
+	o, err = db.Config(sqlite3.DBCONFIG_DEFENSIVE, true)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if o != true {
+		t.Error("want true")
+	}
+
+	o, err = db.Config(sqlite3.DBCONFIG_DEFENSIVE)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if o != true {
+		t.Error("want true")
+	}
+
+	o, err = db.Config(sqlite3.DBCONFIG_DEFENSIVE, false)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if o != false {
+		t.Error("want false")
+	}
+
+	o, err = db.Config(sqlite3.DBCONFIG_DEFENSIVE)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if o != false {
+		t.Error("want false")
+	}
+}
+
+func TestConn_ConfigLog(t *testing.T) {
+	t.Parallel()
+
+	db, err := sqlite3.Open(":memory:")
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer db.Close()
+
+	var code sqlite3.ExtendedErrorCode
+	err = db.ConfigLog(func(c sqlite3.ExtendedErrorCode, msg string) {
+		t.Log(msg)
+		code = c
+	})
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	db.Prepare(`SELECT * FRM sqlite_schema`)
+
+	if code != sqlite3.ExtendedErrorCode(sqlite3.ERROR) {
+		t.Error("want sqlite3.ERROR")
+	}
+}
+
+func TestConn_FileControl(t *testing.T) {
+	t.Parallel()
+
+	file := filepath.Join(t.TempDir(), "test.db")
+	db, err := sqlite3.Open(file)
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer db.Close()
+
+	t.Run("MISUSE", func(t *testing.T) {
+		_, err := db.FileControl("main", 0)
+		if !errors.Is(err, sqlite3.MISUSE) {
+			t.Errorf("got %v, want MISUSE", err)
+		}
+	})
+	t.Run("FCNTL_RESET_CACHE", func(t *testing.T) {
+		o, err := db.FileControl("", sqlite3.FCNTL_RESET_CACHE)
+		if err != nil {
+			t.Fatal(err)
+		}
+		if o != nil {
+			t.Errorf("got %v, want nil", o)
+		}
+	})
+
+	t.Run("FCNTL_PERSIST_WAL", func(t *testing.T) {
+		o, err := db.FileControl("", sqlite3.FCNTL_PERSIST_WAL)
+		if err != nil {
+			t.Fatal(err)
+		}
+		if o != false {
+			t.Errorf("got %v, want false", o)
+		}
+
+		o, err = db.FileControl("", sqlite3.FCNTL_PERSIST_WAL, true)
+		if err != nil {
+			t.Fatal(err)
+		}
+		if o != true {
+			t.Errorf("got %v, want true", o)
+		}
+
+		o, err = db.FileControl("", sqlite3.FCNTL_PERSIST_WAL)
+		if err != nil {
+			t.Fatal(err)
+		}
+		if o != true {
+			t.Errorf("got %v, want true", o)
+		}
+	})
+
+	t.Run("FCNTL_CHUNK_SIZE", func(t *testing.T) {
+		o, err := db.FileControl("", sqlite3.FCNTL_CHUNK_SIZE, 1024*1024)
+		if !errors.Is(err, sqlite3.NOTFOUND) {
+			t.Errorf("got %v, want NOTFOUND", err)
+		}
+		if o != nil {
+			t.Errorf("got %v, want nil", o)
+		}
+	})
+
+	t.Run("FCNTL_RESERVE_BYTES", func(t *testing.T) {
+		o, err := db.FileControl("", sqlite3.FCNTL_RESERVE_BYTES, 4)
+		if err != nil {
+			t.Fatal(err)
+		}
+		if o != 0 {
+			t.Errorf("got %v, want 0", o)
+		}
+
+		o, err = db.FileControl("", sqlite3.FCNTL_RESERVE_BYTES)
+		if err != nil {
+			t.Fatal(err)
+		}
+		if o != 4 {
+			t.Errorf("got %v, want 4", o)
+		}
+	})
+
+	t.Run("FCNTL_DATA_VERSION", func(t *testing.T) {
+		o, err := db.FileControl("", sqlite3.FCNTL_DATA_VERSION)
+		if err != nil {
+			t.Fatal(err)
+		}
+		if o != uint32(2) {
+			t.Errorf("got %v, want 2", o)
+		}
+	})
+
+	t.Run("FCNTL_VFS_POINTER", func(t *testing.T) {
+		o, err := db.FileControl("", sqlite3.FCNTL_VFS_POINTER)
+		if err != nil {
+			t.Fatal(err)
+		}
+		if o != vfs.Find("os") {
+			t.Errorf("got %v, want os", o)
+		}
+	})
+
+	t.Run("FCNTL_FILE_POINTER", func(t *testing.T) {
+		o, err := db.FileControl("", sqlite3.FCNTL_FILE_POINTER)
+		if err != nil {
+			t.Fatal(err)
+		}
+		if _, ok := o.(vfs.File); !ok {
+			t.Errorf("got %v, want File", o)
+		}
+	})
+
+	t.Run("FCNTL_JOURNAL_POINTER", func(t *testing.T) {
+		o, err := db.FileControl("", sqlite3.FCNTL_JOURNAL_POINTER)
+		if err != nil {
+			t.Fatal(err)
+		}
+		if o != nil {
+			t.Errorf("got %v, want nil", o)
+		}
+	})
+
+	t.Run("FCNTL_LOCKSTATE", func(t *testing.T) {
+		if !vfs.SupportsFileLocking {
+			t.Skip("skipping without locks")
+		}
+
+		txn, err := db.BeginExclusive()
+		if err != nil {
+			t.Fatal(err)
+		}
+		defer txn.End(&err)
+
+		o, err := db.FileControl("", sqlite3.FCNTL_LOCKSTATE)
+		if err != nil {
+			t.Fatal(err)
+		}
+		if o != vfs.LOCK_EXCLUSIVE {
+			t.Errorf("got %v, want LOCK_EXCLUSIVE", o)
+		}
+	})
+}
+
+func TestConn_Limit(t *testing.T) {
+	t.Parallel()
+
+	db, err := sqlite3.Open(":memory:")
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer db.Close()
+
+	l := db.Limit(sqlite3.LIMIT_COLUMN, -1)
+	if l != 2000 {
+		t.Errorf("got %d, want 2000", l)
+	}
+
+	l = db.Limit(sqlite3.LIMIT_COLUMN, 100)
+	if l != 2000 {
+		t.Errorf("got %d, want 2000", l)
+	}
+
+	l = db.Limit(sqlite3.LIMIT_COLUMN, -1)
+	if l != 100 {
+		t.Errorf("got %d, want 100", l)
+	}
+
+	l = db.Limit(math.MaxUint32, -1)
+	if l != -1 {
+		t.Errorf("got %d, want -1", l)
+	}
+}
+
+func TestConn_SetAuthorizer(t *testing.T) {
+	t.Parallel()
+
+	db, err := sqlite3.Open(":memory:")
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer db.Close()
+
+	err = db.SetAuthorizer(func(action sqlite3.AuthorizerActionCode, name3rd, name4th, schema, nameInner string) sqlite3.AuthorizerReturnCode {
+		if action != sqlite3.AUTH_PRAGMA {
+			t.Errorf("got %v, want PRAGMA", action)
+		}
+		if name3rd != "busy_timeout" {
+			t.Errorf("got %q, want busy_timeout", name3rd)
+		}
+		if name4th != "5000" {
+			t.Errorf("got %q, want 5000", name4th)
+		}
+		if schema != "main" {
+			t.Errorf("got %q, want main", schema)
+		}
+		return sqlite3.AUTH_DENY
+	})
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	err = db.Exec(`PRAGMA main.busy_timeout=5000`)
+	if !errors.Is(err, sqlite3.AUTH) {
+		t.Errorf("got %v, want sqlite3.AUTH", err)
+	}
+}
+
+func TestConn_Trace(t *testing.T) {
+	t.Parallel()
+
+	db, err := sqlite3.Open(":memory:")
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer db.Close()
+
+	rows := 0
+	closed := false
+	err = db.Trace(math.MaxUint32, func(evt sqlite3.TraceEvent, a1 any, a2 any) error {
+		switch evt {
+		case sqlite3.TRACE_CLOSE:
+			closed = true
+			_ = a1.(*sqlite3.Conn)
+			return db.Exec(`PRAGMA optimize`)
+		case sqlite3.TRACE_STMT:
+			stmt := a1.(*sqlite3.Stmt)
+			if sql := a2.(string); sql != stmt.SQL() {
+				t.Errorf("got %q, want %q", sql, stmt.SQL())
+			}
+			if sql := stmt.ExpandedSQL(); sql != `SELECT 1` {
+				t.Errorf("got %q", sql)
+			}
+		case sqlite3.TRACE_PROFILE:
+			_ = a1.(*sqlite3.Stmt)
+			if ns := a2.(int64); ns < 0 {
+				t.Errorf("got %d", ns)
+			}
+		case sqlite3.TRACE_ROW:
+			_ = a1.(*sqlite3.Stmt)
+			if a2 != nil {
+				t.Errorf("got %v", a2)
+			}
+			rows++
+		}
+		return nil
+	})
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	stmt, _, err := db.Prepare(`SELECT ?`)
+	if err != nil {
+		t.Fatal(err)
+	}
+	err = stmt.BindInt(1, 1)
+	if err != nil {
+		t.Fatal(err)
+	}
+	err = stmt.Exec()
+	if err != nil {
+		t.Fatal(err)
+	}
+	err = stmt.Close()
+	if err != nil {
+		t.Fatal(err)
+	}
+	if rows != 1 {
+		t.Error("want 1")
+	}
+
+	err = db.Close()
+	if err != nil {
+		t.Fatal(err)
+	}
+	if !closed {
+		t.Error("want closed")
+	}
+}
+
+func TestConn_AutoVacuumPages(t *testing.T) {
+	t.Parallel()
+	tmp := memdb.TestDB(t, url.Values{
+		"_pragma": {"auto_vacuum(full)"},
+	})
+
+	db, err := sqlite3.Open(tmp)
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer db.Close()
+
+	err = db.AutoVacuumPages(func(schema string, dbPages, freePages, bytesPerPage uint) uint {
+		return freePages
+	})
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	err = db.Exec(`CREATE TABLE test (col)`)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	err = db.Exec(`INSERT INTO test VALUES (zeroblob(1024*1024))`)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	err = db.Exec(`DROP TABLE test`)
+	if err != nil {
+		t.Fatal(err)
+	}
+}
+
+func TestConn_memoryLimit(t *testing.T) {
+	t.Parallel()
+
+	db, err := sqlite3.Open(":memory:")
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer db.Close()
+
+	n := db.HardHeapLimit(-1)
+	if n != 0 {
+		t.Fatal("want zero")
+	}
+
+	const limit = 64 * 1024 * 1024
+
+	n = db.SoftHeapLimit(limit)
+	if n != 0 {
+		t.Fatal("want zero")
+	}
+
+	n = db.SoftHeapLimit(-1)
+	if n != limit {
+		t.Fatal("want", limit)
+	}
+}

tests/conn_test.go

@@ -3,8 +3,6 @@ package tests
 import (
 	"context"
 	"errors"
-	"math"
-	"net/url"
 	"os"
 	"path/filepath"
 	"strings"
@@ -13,8 +11,6 @@ import (
 	"github.com/ncruces/go-sqlite3"
 	_ "github.com/ncruces/go-sqlite3/embed"
 	_ "github.com/ncruces/go-sqlite3/internal/testcfg"
-	"github.com/ncruces/go-sqlite3/vfs"
-	"github.com/ncruces/go-sqlite3/vfs/memdb"
 	_ "github.com/ncruces/go-sqlite3/vfs/memdb"
 )
 
@@ -265,358 +261,6 @@ func TestConn_Prepare_invalid(t *testing.T) {
 	}
 }
 
-func TestConn_Config(t *testing.T) {
-	t.Parallel()
-
-	db, err := sqlite3.Open(":memory:")
-	if err != nil {
-		t.Fatal(err)
-	}
-	defer db.Close()
-
-	o, err := db.Config(sqlite3.DBCONFIG_DEFENSIVE)
-	if err != nil {
-		t.Fatal(err)
-	}
-	if o != false {
-		t.Error("want false")
-	}
-
-	o, err = db.Config(sqlite3.DBCONFIG_DEFENSIVE, true)
-	if err != nil {
-		t.Fatal(err)
-	}
-	if o != true {
-		t.Error("want true")
-	}
-
-	o, err = db.Config(sqlite3.DBCONFIG_DEFENSIVE)
-	if err != nil {
-		t.Fatal(err)
-	}
-	if o != true {
-		t.Error("want true")
-	}
-
-	o, err = db.Config(sqlite3.DBCONFIG_DEFENSIVE, false)
-	if err != nil {
-		t.Fatal(err)
-	}
-	if o != false {
-		t.Error("want false")
-	}
-
-	o, err = db.Config(sqlite3.DBCONFIG_DEFENSIVE)
-	if err != nil {
-		t.Fatal(err)
-	}
-	if o != false {
-		t.Error("want false")
-	}
-}
-
-func TestConn_ConfigLog(t *testing.T) {
-	t.Parallel()
-
-	db, err := sqlite3.Open(":memory:")
-	if err != nil {
-		t.Fatal(err)
-	}
-	defer db.Close()
-
-	var code sqlite3.ExtendedErrorCode
-	err = db.ConfigLog(func(c sqlite3.ExtendedErrorCode, msg string) {
-		t.Log(msg)
-		code = c
-	})
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	db.Prepare(`SELECT * FRM sqlite_schema`)
-
-	if code != sqlite3.ExtendedErrorCode(sqlite3.ERROR) {
-		t.Error("want sqlite3.ERROR")
-	}
-}
-
-func TestConn_FileControl(t *testing.T) {
-	t.Parallel()
-
-	file := filepath.Join(t.TempDir(), "test.db")
-	db, err := sqlite3.Open(file)
-	if err != nil {
-		t.Fatal(err)
-	}
-	defer db.Close()
-
-	t.Run("MISUSE", func(t *testing.T) {
-		_, err := db.FileControl("main", 0)
-		if !errors.Is(err, sqlite3.MISUSE) {
-			t.Errorf("got %v, want MISUSE", err)
-		}
-	})
-	t.Run("FCNTL_RESET_CACHE", func(t *testing.T) {
-		o, err := db.FileControl("", sqlite3.FCNTL_RESET_CACHE)
-		if err != nil {
-			t.Fatal(err)
-		}
-		if o != nil {
-			t.Errorf("got %v, want nil", o)
-		}
-	})
-
-	t.Run("FCNTL_PERSIST_WAL", func(t *testing.T) {
-		o, err := db.FileControl("", sqlite3.FCNTL_PERSIST_WAL)
-		if err != nil {
-			t.Fatal(err)
-		}
-		if o != false {
-			t.Errorf("got %v, want false", o)
-		}
-
-		o, err = db.FileControl("", sqlite3.FCNTL_PERSIST_WAL, true)
-		if err != nil {
-			t.Fatal(err)
-		}
-		if o != true {
-			t.Errorf("got %v, want true", o)
-		}
-
-		o, err = db.FileControl("", sqlite3.FCNTL_PERSIST_WAL)
-		if err != nil {
-			t.Fatal(err)
-		}
-		if o != true {
-			t.Errorf("got %v, want true", o)
-		}
-	})
-
-	t.Run("FCNTL_CHUNK_SIZE", func(t *testing.T) {
-		o, err := db.FileControl("", sqlite3.FCNTL_CHUNK_SIZE, 1024*1024)
-		if !errors.Is(err, sqlite3.NOTFOUND) {
-			t.Errorf("got %v, want NOTFOUND", err)
-		}
-		if o != nil {
-			t.Errorf("got %v, want nil", o)
-		}
-	})
-
-	t.Run("FCNTL_RESERVE_BYTES", func(t *testing.T) {
-		o, err := db.FileControl("", sqlite3.FCNTL_RESERVE_BYTES, 4)
-		if err != nil {
-			t.Fatal(err)
-		}
-		if o != 0 {
-			t.Errorf("got %v, want 0", o)
-		}
-
-		o, err = db.FileControl("", sqlite3.FCNTL_RESERVE_BYTES)
-		if err != nil {
-			t.Fatal(err)
-		}
-		if o != 4 {
-			t.Errorf("got %v, want 4", o)
-		}
-	})
-
-	t.Run("FCNTL_DATA_VERSION", func(t *testing.T) {
-		o, err := db.FileControl("", sqlite3.FCNTL_DATA_VERSION)
-		if err != nil {
-			t.Fatal(err)
-		}
-		if o != uint32(2) {
-			t.Errorf("got %v, want 2", o)
-		}
-	})
-
-	t.Run("FCNTL_VFS_POINTER", func(t *testing.T) {
-		o, err := db.FileControl("", sqlite3.FCNTL_VFS_POINTER)
-		if err != nil {
-			t.Fatal(err)
-		}
-		if o != vfs.Find("os") {
-			t.Errorf("got %v, want os", o)
-		}
-	})
-
-	t.Run("FCNTL_FILE_POINTER", func(t *testing.T) {
-		o, err := db.FileControl("", sqlite3.FCNTL_FILE_POINTER)
-		if err != nil {
-			t.Fatal(err)
-		}
-		if _, ok := o.(vfs.File); !ok {
-			t.Errorf("got %v, want File", o)
-		}
-	})
-
-	t.Run("FCNTL_JOURNAL_POINTER", func(t *testing.T) {
-		o, err := db.FileControl("", sqlite3.FCNTL_JOURNAL_POINTER)
-		if err != nil {
-			t.Fatal(err)
-		}
-		if o != nil {
-			t.Errorf("got %v, want nil", o)
-		}
-	})
-
-	t.Run("FCNTL_LOCKSTATE", func(t *testing.T) {
-		if !vfs.SupportsFileLocking {
-			t.Skip("skipping without locks")
-		}
-
-		txn, err := db.BeginExclusive()
-		if err != nil {
-			t.Fatal(err)
-		}
-		defer txn.End(&err)
-
-		o, err := db.FileControl("", sqlite3.FCNTL_LOCKSTATE)
-		if err != nil {
-			t.Fatal(err)
-		}
-		if o != vfs.LOCK_EXCLUSIVE {
-			t.Errorf("got %v, want LOCK_EXCLUSIVE", o)
-		}
-	})
-}
-
-func TestConn_Limit(t *testing.T) {
-	t.Parallel()
-
-	db, err := sqlite3.Open(":memory:")
-	if err != nil {
-		t.Fatal(err)
-	}
-	defer db.Close()
-
-	l := db.Limit(sqlite3.LIMIT_COLUMN, -1)
-	if l != 2000 {
-		t.Errorf("got %d, want 2000", l)
-	}
-
-	l = db.Limit(sqlite3.LIMIT_COLUMN, 100)
-	if l != 2000 {
-		t.Errorf("got %d, want 2000", l)
-	}
-
-	l = db.Limit(sqlite3.LIMIT_COLUMN, -1)
-	if l != 100 {
-		t.Errorf("got %d, want 100", l)
-	}
-
-	l = db.Limit(math.MaxUint32, -1)
-	if l != -1 {
-		t.Errorf("got %d, want -1", l)
-	}
-}
-
-func TestConn_SetAuthorizer(t *testing.T) {
-	t.Parallel()
-
-	db, err := sqlite3.Open(":memory:")
-	if err != nil {
-		t.Fatal(err)
-	}
-	defer db.Close()
-
-	err = db.SetAuthorizer(func(action sqlite3.AuthorizerActionCode, name3rd, name4th, schema, nameInner string) sqlite3.AuthorizerReturnCode {
-		if action != sqlite3.AUTH_PRAGMA {
-			t.Errorf("got %v, want PRAGMA", action)
-		}
-		if name3rd != "busy_timeout" {
-			t.Errorf("got %q, want busy_timeout", name3rd)
-		}
-		if name4th != "5000" {
-			t.Errorf("got %q, want 5000", name4th)
-		}
-		if schema != "main" {
-			t.Errorf("got %q, want main", schema)
-		}
-		return sqlite3.AUTH_DENY
-	})
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	err = db.Exec(`PRAGMA main.busy_timeout=5000`)
-	if !errors.Is(err, sqlite3.AUTH) {
-		t.Errorf("got %v, want sqlite3.AUTH", err)
-	}
-}
-
-func TestConn_Trace(t *testing.T) {
-	t.Parallel()
-
-	db, err := sqlite3.Open(":memory:")
-	if err != nil {
-		t.Fatal(err)
-	}
-	defer db.Close()
-
-	rows := 0
-	closed := false
-	err = db.Trace(math.MaxUint32, func(evt sqlite3.TraceEvent, a1 any, a2 any) error {
-		switch evt {
-		case sqlite3.TRACE_CLOSE:
-			closed = true
-			_ = a1.(*sqlite3.Conn)
-			return db.Exec(`PRAGMA optimize`)
-		case sqlite3.TRACE_STMT:
-			stmt := a1.(*sqlite3.Stmt)
-			if sql := a2.(string); sql != stmt.SQL() {
-				t.Errorf("got %q, want %q", sql, stmt.SQL())
-			}
-			if sql := stmt.ExpandedSQL(); sql != `SELECT 1` {
-				t.Errorf("got %q", sql)
-			}
-		case sqlite3.TRACE_PROFILE:
-			_ = a1.(*sqlite3.Stmt)
-			if ns := a2.(int64); ns < 0 {
-				t.Errorf("got %d", ns)
-			}
-		case sqlite3.TRACE_ROW:
-			_ = a1.(*sqlite3.Stmt)
-			if a2 != nil {
-				t.Errorf("got %v", a2)
-			}
-			rows++
-		}
-		return nil
-	})
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	stmt, _, err := db.Prepare(`SELECT ?`)
-	if err != nil {
-		t.Fatal(err)
-	}
-	err = stmt.BindInt(1, 1)
-	if err != nil {
-		t.Fatal(err)
-	}
-	err = stmt.Exec()
-	if err != nil {
-		t.Fatal(err)
-	}
-	err = stmt.Close()
-	if err != nil {
-		t.Fatal(err)
-	}
-	if rows != 1 {
-		t.Error("want 1")
-	}
-
-	err = db.Close()
-	if err != nil {
-		t.Fatal(err)
-	}
-	if !closed {
-		t.Error("want closed")
-	}
-}
-
 func TestConn_ReleaseMemory(t *testing.T) {
 	t.Parallel()
 
@@ -727,41 +371,6 @@ func TestConn_DBName(t *testing.T) {
 	}
 }
 
-func TestConn_AutoVacuumPages(t *testing.T) {
-	t.Parallel()
-	tmp := memdb.TestDB(t, url.Values{
-		"_pragma": {"auto_vacuum(full)"},
-	})
-
-	db, err := sqlite3.Open(tmp)
-	if err != nil {
-		t.Fatal(err)
-	}
-	defer db.Close()
-
-	err = db.AutoVacuumPages(func(schema string, dbPages, freePages, bytesPerPage uint) uint {
-		return freePages
-	})
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	err = db.Exec(`CREATE TABLE test (col)`)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	err = db.Exec(`INSERT INTO test VALUES (zeroblob(1024*1024))`)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	err = db.Exec(`DROP TABLE test`)
-	if err != nil {
-		t.Fatal(err)
-	}
-}
-
 func TestConn_Status(t *testing.T) {
 	t.Parallel()
 

vfs/tests/mptest/testdata/mptest.wasm.bz2

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:42858f7755a42e64913c5119dcd5ecb3fbceac71e13952d4e8b62a97c05311b5
-size 476253
+oid sha256:4b2ca8d3b914990e5c3486e039a6a4160b36c8d6db6c95e2c6c6619d69d26e1d
+size 476258

vfs/tests/speedtest1/testdata/speedtest1.wasm.bz2

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:cf4fb9d930647e29f0da71981b6b1e204e4949c816e5f7d6aeded6a90ad9e8ab
-size 489516
+oid sha256:259a3d0311302a0ea1d577a8209425f0dbf1ec3a77e214dbafa0e2c1a30723d3
+size 489479

vfs/vfs.go

@@ -356,7 +356,7 @@ func vfsFileControl(ctx context.Context, mod api.Module, pFile uint32, op _Fcntl
 				out = err.Error()
 			}
 			if out != "" {
-				fn := mod.ExportedFunction("malloc")
+				fn := mod.ExportedFunction("sqlite3_malloc64")
 				stack := [...]uint64{uint64(len(out) + 1)}
 				if err := fn.CallWithStack(ctx, stack[:]); err != nil {
 					panic(err)