Towards callbacks.

config.go

@@ -64,3 +64,7 @@ func (c *Conn) Limit(id LimitCategory, value int) int {
 	r := c.call("sqlite3_limit", uint64(c.handle), uint64(id), uint64(value))
 	return int(int32(r))
 }
+
+func authorizerCallback(ctx context.Context, mod api.Module, pDB, action, zName3d, zName4th, zSchema, zInnerName uint32) uint32 {
+	return 0
+}

conn.go

@@ -326,9 +326,16 @@ func progressCallback(ctx context.Context, mod api.Module, _ uint32) uint32 {
 	return 0
 }
 
-// Pragma executes a PRAGMA statement and returns any results.
+func commitCallback(ctx context.Context, mod api.Module, pDB uint32) uint32 {
-//
+	return 0
-// https://sqlite.org/pragma.html
+}
+
+func rollbackCallback(ctx context.Context, mod api.Module, pDB uint32) {}
+
+func updateCallback(ctx context.Context, mod api.Module, pDB, action, zSchema, zTabName uint32, rowid uint64) {
+}
+
+// Deprecated: executes a PRAGMA statement and returns results.
 func (c *Conn) Pragma(str string) ([]string, error) {
 	stmt, _, err := c.Prepare(`PRAGMA ` + str)
 	if err != nil {

embed/exports.txt

@@ -28,6 +28,7 @@ sqlite3_changes64
 sqlite3_clear_bindings
 sqlite3_close
 sqlite3_close_v2
+sqlite3_collation_needed_go
 sqlite3_column_blob
 sqlite3_column_bytes
 sqlite3_column_count
@@ -39,6 +40,7 @@ sqlite3_column_text
 sqlite3_column_type
 sqlite3_column_value
 sqlite3_columns_go
+sqlite3_commit_hook_go
 sqlite3_config_log_go
 sqlite3_create_aggregate_function_go
 sqlite3_create_collation_go
@@ -78,6 +80,8 @@ sqlite3_result_pointer_go
 sqlite3_result_text64
 sqlite3_result_value
 sqlite3_result_zeroblob64
+sqlite3_rollback_hook_go
+sqlite3_set_authorizer_go
 sqlite3_set_auxdata_go
 sqlite3_set_last_insert_rowid
 sqlite3_step
@@ -86,6 +90,7 @@ sqlite3_stmt_readonly
 sqlite3_stmt_status
 sqlite3_total_changes64
 sqlite3_txn_state
+sqlite3_update_hook_go
 sqlite3_uri_key
 sqlite3_uri_parameter
 sqlite3_value_blob

func.go

@@ -106,6 +106,8 @@ func destroyCallback(ctx context.Context, mod api.Module, pApp uint32) {
 	util.DelHandle(ctx, pApp)
 }
 
+func collationCallback(ctx context.Context, mod api.Module, pArg, pDB, eTextRep, zName uint32) {}
+
 func compareCallback(ctx context.Context, mod api.Module, pApp, nKey1, pKey1, nKey2, pKey2 uint32) uint32 {
 	fn := util.GetHandle(ctx, pApp).(func(a, b []byte) int)
 	return uint32(fn(util.View(mod, pKey1, uint64(nKey1)), util.View(mod, pKey2, uint64(nKey2))))

internal/util/func.go

@@ -75,6 +75,19 @@ func ExportFuncVIIIII[T0, T1, T2, T3, T4 i32](mod wazero.HostModuleBuilder, name
 		Export(name)
 }
 
+type funcVIIIIJ[T0, T1, T2, T3 i32, T4 i64] func(context.Context, api.Module, T0, T1, T2, T3, T4)
+
+func (fn funcVIIIIJ[T0, T1, T2, T3, T4]) Call(ctx context.Context, mod api.Module, stack []uint64) {
+	fn(ctx, mod, T0(stack[0]), T1(stack[1]), T2(stack[2]), T3(stack[3]), T4(stack[4]))
+}
+
+func ExportFuncVIIIIJ[T0, T1, T2, T3 i32, T4 i64](mod wazero.HostModuleBuilder, name string, fn func(context.Context, api.Module, T0, T1, T2, T3, T4)) {
+	mod.NewFunctionBuilder().
+		WithGoModuleFunction(funcVIIIIJ[T0, T1, T2, T3, T4](fn),
+			[]api.ValueType{api.ValueTypeI32, api.ValueTypeI32, api.ValueTypeI32, api.ValueTypeI32, api.ValueTypeI64}, nil).
+		Export(name)
+}
+
 type funcII[TR, T0 i32] func(context.Context, api.Module, T0) TR
 
 func (fn funcII[TR, T0]) Call(ctx context.Context, mod api.Module, stack []uint64) {
@@ -140,6 +153,19 @@ func ExportFuncIIIIII[TR, T0, T1, T2, T3, T4 i32](mod wazero.HostModuleBuilder,
 		Export(name)
 }
 
+type funcIIIIIII[TR, T0, T1, T2, T3, T4, T5 i32] func(context.Context, api.Module, T0, T1, T2, T3, T4, T5) TR
+
+func (fn funcIIIIIII[TR, T0, T1, T2, T3, T4, T5]) Call(ctx context.Context, mod api.Module, stack []uint64) {
+	stack[0] = uint64(fn(ctx, mod, T0(stack[0]), T1(stack[1]), T2(stack[2]), T3(stack[3]), T4(stack[4]), T5(stack[5])))
+}
+
+func ExportFuncIIIIIII[TR, T0, T1, T2, T3, T4, T5 i32](mod wazero.HostModuleBuilder, name string, fn func(context.Context, api.Module, T0, T1, T2, T3, T4, T5) TR) {
+	mod.NewFunctionBuilder().
+		WithGoModuleFunction(funcIIIIIII[TR, T0, T1, T2, T3, T4, T5](fn),
+			[]api.ValueType{api.ValueTypeI32, api.ValueTypeI32, api.ValueTypeI32, api.ValueTypeI32, api.ValueTypeI32, api.ValueTypeI32}, []api.ValueType{api.ValueTypeI32}).
+		Export(name)
+}
+
 type funcIIIIJ[TR, T0, T1, T2 i32, T3 i64] func(context.Context, api.Module, T0, T1, T2, T3) TR
 
 func (fn funcIIIIJ[TR, T0, T1, T2, T3]) Call(ctx context.Context, mod api.Module, stack []uint64) {

sqlite.go

@@ -290,6 +290,10 @@ func (a *arena) string(s string) uint32 {
 
 func exportCallbacks(env wazero.HostModuleBuilder) wazero.HostModuleBuilder {
 	util.ExportFuncII(env, "go_progress", progressCallback)
+	util.ExportFuncII(env, "go_commit_hook", commitCallback)
+	util.ExportFuncVI(env, "go_rollback_hook", rollbackCallback)
+	util.ExportFuncVIIIIJ(env, "go_update_hook", updateCallback)
+	util.ExportFuncIIIIIII(env, "go_authorizer", authorizerCallback)
 	util.ExportFuncVIII(env, "go_log", logCallback)
 	util.ExportFuncVI(env, "go_destroy", destroyCallback)
 	util.ExportFuncVIIII(env, "go_func", funcCallback)
@@ -297,9 +301,10 @@ func exportCallbacks(env wazero.HostModuleBuilder) wazero.HostModuleBuilder {
 	util.ExportFuncVIII(env, "go_final", finalCallback)
 	util.ExportFuncVII(env, "go_value", valueCallback)
 	util.ExportFuncVIIII(env, "go_inverse", inverseCallback)
+	util.ExportFuncVIIII(env, "go_collation_needed", collationCallback)
 	util.ExportFuncIIIIII(env, "go_compare", compareCallback)
-	util.ExportFuncIIIIII(env, "go_vtab_create", vtabModuleCallback(0))
+	util.ExportFuncIIIIII(env, "go_vtab_create", vtabModuleCallback(xCreate))
-	util.ExportFuncIIIIII(env, "go_vtab_connect", vtabModuleCallback(1))
+	util.ExportFuncIIIIII(env, "go_vtab_connect", vtabModuleCallback(xConnect))
 	util.ExportFuncII(env, "go_vtab_disconnect", vtabDisconnectCallback)
 	util.ExportFuncII(env, "go_vtab_destroy", vtabDestroyCallback)
 	util.ExportFuncIII(env, "go_vtab_best_index", vtabBestIndexCallback)

sqlite3/func.c

@@ -1,8 +1,11 @@
+#include <stdbool.h>
 #include <stddef.h>
 
 #include "include.h"
 #include "sqlite3.h"
 
+void go_collation_needed(void *, sqlite3 *, int, const char *);
+
 int go_compare(go_handle, int, const void *, int, const void *);
 
 void go_func(sqlite3_context *, go_handle, int, sqlite3_value **);
@@ -44,6 +47,11 @@ void go_inverse_wrapper(sqlite3_context *ctx, int nArg, sqlite3_value **pArg) {
   go_inverse(ctx, *agg, nArg, pArg);
 }
 
+int sqlite3_collation_needed_go(sqlite3 *db, bool enable) {
+  return sqlite3_collation_needed(db, /*arg=*/NULL,
+                                  enable ? go_collation_needed : NULL);
+}
+
 int sqlite3_create_collation_go(sqlite3 *db, const char *name, go_handle app) {
   int rc = sqlite3_create_collation_v2(db, name, SQLITE_UTF8, app, go_compare,
                                        go_destroy);

sqlite3/hooks.c

@@ -0,0 +1,39 @@
+#include <stdbool.h>
+
+#include "sqlite3.h"
+
+int go_progress(void *);
+
+int go_commit_hook(void *);
+void go_rollback_hook(void *);
+void go_update_hook(void *, int, char const *, char const *, sqlite3_int64);
+
+int go_authorizer(void *, int, const char *, const char *, const char *,
+                  const char *);
+
+void go_log(void *, int, const char *);
+
+void sqlite3_progress_handler_go(sqlite3 *db, int n) {
+  sqlite3_progress_handler(db, n, go_progress, /*arg=*/db);
+}
+
+void sqlite3_commit_hook_go(sqlite3 *db, bool enable) {
+  sqlite3_commit_hook(db, enable ? go_commit_hook : NULL, /*arg=*/db);
+}
+
+void sqlite3_rollback_hook_go(sqlite3 *db, bool enable) {
+  sqlite3_rollback_hook(db, enable ? go_rollback_hook : NULL, /*arg=*/db);
+}
+
+void sqlite3_update_hook_go(sqlite3 *db, bool enable) {
+  sqlite3_update_hook(db, enable ? go_update_hook : NULL, /*arg=*/db);
+}
+
+int sqlite3_set_authorizer_go(sqlite3 *db, bool enable) {
+  return sqlite3_set_authorizer(db, enable ? go_authorizer : NULL, /*arg=*/db);
+}
+
+int sqlite3_config_log_go(bool enable) {
+  return sqlite3_config(SQLITE_CONFIG_LOG, enable ? go_log : NULL,
+                        /*arg=*/NULL);
+}

sqlite3/log.c

@@ -1,9 +0,0 @@
-#include <stdbool.h>
-
-#include "sqlite3.h"
-
-void go_log(void *, int, const char *);
-
-int sqlite3_config_log_go(bool enable) {
-  return sqlite3_config(SQLITE_CONFIG_LOG, enable ? go_log : NULL, NULL);
-}

sqlite3/main.c

@@ -12,9 +12,8 @@
 // Bindings
 #include "column.c"
 #include "func.c"
-#include "log.c"
+#include "hooks.c"
 #include "pointer.c"
-#include "progress.c"
 #include "time.c"
 #include "vfs.c"
 #include "vtab.c"

sqlite3/progress.c

@@ -1,9 +0,0 @@
-#include <stddef.h>
-
-#include "sqlite3.h"
-
-int go_progress(void *);
-
-void sqlite3_progress_handler_go(sqlite3 *db, int n) {
-  sqlite3_progress_handler(db, n, go_progress, /*arg=*/NULL);
-}

vtab.go

@@ -128,6 +128,13 @@ type VTabConstructor[T VTab] func(db *Conn, module, schema, table string, arg ..
 
 type module[T VTab] [2]VTabConstructor[T]
 
+type vtabConstructor int
+
+const (
+	xCreate  vtabConstructor = 0
+	xConnect vtabConstructor = 1
+)
+
 // A VTab describes a particular instance of the virtual table.
 // A VTab may optionally implement [io.Closer] to free resources.
 //
@@ -414,7 +421,7 @@ const (
 	INDEX_SCAN_UNIQUE IndexScanFlag = 1
 )
 
-func vtabModuleCallback(i int) func(_ context.Context, _ api.Module, _, _, _, _, _ uint32) uint32 {
+func vtabModuleCallback(i vtabConstructor) func(_ context.Context, _ api.Module, _, _, _, _, _ uint32) uint32 {
 	return func(ctx context.Context, mod api.Module, pMod, nArg, pArg, ppVTab, pzErr uint32) uint32 {
 		arg := make([]reflect.Value, 1+nArg)
 		arg[0] = reflect.ValueOf(ctx.Value(connKey{}))
@@ -425,7 +432,7 @@ func vtabModuleCallback(i int) func(_ context.Context, _ api.Module, _, _, _, _,
 		}
 
 		module := vtabGetHandle(ctx, mod, pMod)
-		res := reflect.ValueOf(module).Index(i).Call(arg)
+		res := reflect.ValueOf(module).Index(int(i)).Call(arg)
 		err, _ := res[1].Interface().(error)
 		if err == nil {
 			vtabPutHandle(ctx, mod, ppVTab, res[0].Interface())