Change all T_DATA objects to typed data

.travis.yml

@@ -31,6 +31,10 @@ matrix:
       env:
         - "PGVERSION=12"
 
+    - rvm: truffleruby-head
+      env:
+        - "PGVERSION=12"
+
     - name: gem-windows
       rvm: "2.7"
       before_install:
@@ -43,6 +47,7 @@ matrix:
         - rake gem:windows:x86-mingw32
   allow_failures:
     - rvm: ruby-head
+    - rvm: truffleruby-head
   fast_finish: true
 
 before_install:

ext/extconf.rb

@@ -80,6 +80,7 @@
 have_func 'PQresultMemorySize' # since PostgreSQL-12
 have_func 'timegm'
 have_func 'rb_gc_adjust_memory_usage' # since ruby-2.4
+have_func 'rb_gc_mark_movable' # since ruby-2.7
 
 # unistd.h confilicts with ruby/win32.h when cross compiling for win32 and ruby 1.9.1
 have_header 'unistd.h'

ext/pg.h

@@ -78,6 +78,15 @@ typedef long suseconds_t;
 #define RARRAY_AREF(a, i) (RARRAY_PTR(a)[i])
 #endif
 
+#ifdef HAVE_RB_GC_MARK_MOVABLE
+#define pg_compact_callback(x) ((void (*)(void*))(x))
+#define pg_gc_location(x) x = rb_gc_location(x)
+#else
+#define rb_gc_mark_movable(x) rb_gc_mark(x)
+#define pg_compact_callback(x) {(x)}
+#define pg_gc_location(x) UNUSED(x)
+#endif
+
 #define PG_ENC_IDX_BITS 28
 
 /* The data behind each PG::Connection object */
@@ -220,6 +229,8 @@ typedef struct {
 	} convs[0];
 } t_tmbc;
 
+extern const rb_data_type_t pg_typemap_type;
+extern const rb_data_type_t pg_coder_type;
 
 #include "gvl_wrappers.h"
 
@@ -304,7 +315,7 @@ VALUE pg_obj_to_i                                      _(( VALUE ));
 VALUE pg_tmbc_allocate                                 _(( void ));
 void pg_coder_init_encoder                             _(( VALUE ));
 void pg_coder_init_decoder                             _(( VALUE ));
-void pg_coder_mark                                     _(( t_pg_coder * ));
+void pg_coder_compact                                  _(( t_pg_coder * ));
 char *pg_rb_str_ensure_capa                            _(( VALUE, long, char *, char ** ));
 
 #define PG_RB_STR_ENSURE_CAPA( str, expand_len, curr_ptr, end_ptr ) \
@@ -324,6 +335,8 @@ int pg_typemap_fit_to_copy_get                         _(( VALUE ));
 VALUE pg_typemap_result_value                          _(( t_typemap *, VALUE, int, int ));
 t_pg_coder *pg_typemap_typecast_query_param            _(( t_typemap *, VALUE, int ));
 VALUE pg_typemap_typecast_copy_get                     _(( t_typemap *, VALUE, int, int, int ));
+void pg_typemap_mark                                   _(( t_typemap * ));
+void pg_typemap_compact                                _(( t_typemap * ));
 
 PGconn *pg_get_pgconn                                  _(( VALUE ));
 t_pg_connection *pg_get_connection                     _(( VALUE ));

ext/pg_coder.c

@@ -26,11 +26,11 @@ pg_coder_allocate( VALUE klass )
 void
 pg_coder_init_encoder( VALUE self )
 {
-	t_pg_coder *this = DATA_PTR( self );
+	t_pg_coder *this = RTYPEDDATA_DATA( self );
 	VALUE klass = rb_class_of(self);
 	if( rb_const_defined( klass, s_id_CFUNC ) ){
 		VALUE cfunc = rb_const_get( klass, s_id_CFUNC );
-		this->enc_func = DATA_PTR(cfunc);
+		this->enc_func = RTYPEDDATA_DATA(cfunc);
 	} else {
 		this->enc_func = NULL;
 	}
@@ -45,12 +45,12 @@ pg_coder_init_encoder( VALUE self )
 void
 pg_coder_init_decoder( VALUE self )
 {
-	t_pg_coder *this = DATA_PTR( self );
+	t_pg_coder *this = RTYPEDDATA_DATA( self );
 	VALUE klass = rb_class_of(self);
 	this->enc_func = NULL;
 	if( rb_const_defined( klass, s_id_CFUNC ) ){
 		VALUE cfunc = rb_const_get( klass, s_id_CFUNC );
-		this->dec_func = DATA_PTR(cfunc);
+		this->dec_func = RTYPEDDATA_DATA(cfunc);
 	} else {
 		this->dec_func = NULL;
 	}
@@ -62,31 +62,57 @@ pg_coder_init_decoder( VALUE self )
 }
 
 void
-pg_coder_mark(t_pg_coder *this)
+pg_coder_compact(t_pg_coder *this)
 {
-	rb_gc_mark(this->coder_obj);
+	pg_gc_location(this->coder_obj);
 }
 
 static void
-pg_composite_coder_mark(t_pg_composite_coder *this)
+pg_composite_coder_compact(t_pg_composite_coder *this)
 {
-	pg_coder_mark(&this->comp);
+	pg_coder_compact(&this->comp);
 }
 
+const rb_data_type_t pg_coder_type = {
+	"PG::Coder",
+	{
+		(void (*)(void*))NULL,
+		(void (*)(void*))-1,
+		(size_t (*)(const void *))NULL,
+		pg_compact_callback(pg_coder_compact),
+	},
+	0,
+	0,
+	RUBY_TYPED_FREE_IMMEDIATELY,
+};
+
 static VALUE
 pg_simple_encoder_allocate( VALUE klass )
 {
 	t_pg_coder *this;
-	VALUE self = Data_Make_Struct( klass, t_pg_coder, pg_coder_mark, -1, this );
+	VALUE self = TypedData_Make_Struct( klass, t_pg_coder, &pg_coder_type, this );
 	pg_coder_init_encoder( self );
 	return self;
 }
 
+static const rb_data_type_t pg_composite_coder_type = {
+	"PG::CompositeCoder",
+	{
+		(void (*)(void*))NULL,
+		(void (*)(void*))-1,
+		(size_t (*)(const void *))NULL,
+		pg_compact_callback(pg_composite_coder_compact),
+	},
+	&pg_coder_type,
+	0,
+	RUBY_TYPED_FREE_IMMEDIATELY,
+};
+
 static VALUE
 pg_composite_encoder_allocate( VALUE klass )
 {
 	t_pg_composite_coder *this;
-	VALUE self = Data_Make_Struct( klass, t_pg_composite_coder, pg_composite_coder_mark, -1, this );
+	VALUE self = TypedData_Make_Struct( klass, t_pg_composite_coder, &pg_composite_coder_type, this );
 	pg_coder_init_encoder( self );
 	this->elem = NULL;
 	this->needs_quotation = 1;
@@ -99,7 +125,7 @@ static VALUE
 pg_simple_decoder_allocate( VALUE klass )
 {
 	t_pg_coder *this;
-	VALUE self = Data_Make_Struct( klass, t_pg_coder, pg_coder_mark, -1, this );
+	VALUE self = TypedData_Make_Struct( klass, t_pg_coder, &pg_coder_type, this );
 	pg_coder_init_decoder( self );
 	return self;
 }
@@ -108,7 +134,7 @@ static VALUE
 pg_composite_decoder_allocate( VALUE klass )
 {
 	t_pg_composite_coder *this;
-	VALUE self = Data_Make_Struct( klass, t_pg_composite_coder, pg_composite_coder_mark, -1, this );
+	VALUE self = TypedData_Make_Struct( klass, t_pg_composite_coder, &pg_composite_coder_type, this );
 	pg_coder_init_decoder( self );
 	this->elem = NULL;
 	this->needs_quotation = 1;
@@ -135,7 +161,7 @@ pg_coder_encode(int argc, VALUE *argv, VALUE self)
 	VALUE value;
 	int len, len2;
 	int enc_idx;
-	t_pg_coder *this = DATA_PTR(self);
+	t_pg_coder *this = RTYPEDDATA_DATA(self);
 
 	if(argc < 1 || argc > 2){
 		rb_raise(rb_eArgError, "wrong number of arguments (%i for 1..2)", argc);
@@ -192,7 +218,7 @@ pg_coder_decode(int argc, VALUE *argv, VALUE self)
 	int tuple = -1;
 	int field = -1;
 	VALUE res;
-	t_pg_coder *this = DATA_PTR(self);
+	t_pg_coder *this = RTYPEDDATA_DATA(self);
 
 	if(argc < 1 || argc > 3){
 		rb_raise(rb_eArgError, "wrong number of arguments (%i for 1..3)", argc);
@@ -230,7 +256,7 @@ pg_coder_decode(int argc, VALUE *argv, VALUE self)
 static VALUE
 pg_coder_oid_set(VALUE self, VALUE oid)
 {
-	t_pg_coder *this = DATA_PTR(self);
+	t_pg_coder *this = RTYPEDDATA_DATA(self);
 	this->oid = NUM2UINT(oid);
 	return oid;
 }
@@ -245,7 +271,7 @@ pg_coder_oid_set(VALUE self, VALUE oid)
 static VALUE
 pg_coder_oid_get(VALUE self)
 {
-	t_pg_coder *this = DATA_PTR(self);
+	t_pg_coder *this = RTYPEDDATA_DATA(self);
 	return UINT2NUM(this->oid);
 }
 
@@ -261,7 +287,7 @@ pg_coder_oid_get(VALUE self)
 static VALUE
 pg_coder_format_set(VALUE self, VALUE format)
 {
-	t_pg_coder *this = DATA_PTR(self);
+	t_pg_coder *this = RTYPEDDATA_DATA(self);
 	this->format = NUM2INT(format);
 	return format;
 }
@@ -276,7 +302,7 @@ pg_coder_format_set(VALUE self, VALUE format)
 static VALUE
 pg_coder_format_get(VALUE self)
 {
-	t_pg_coder *this = DATA_PTR(self);
+	t_pg_coder *this = RTYPEDDATA_DATA(self);
 	return INT2NUM(this->format);
 }
 
@@ -292,7 +318,7 @@ pg_coder_format_get(VALUE self)
 static VALUE
 pg_coder_flags_set(VALUE self, VALUE flags)
 {
-	t_pg_coder *this = DATA_PTR(self);
+	t_pg_coder *this = RTYPEDDATA_DATA(self);
 	this->flags = NUM2INT(flags);
 	return flags;
 }
@@ -306,7 +332,7 @@ pg_coder_flags_set(VALUE self, VALUE flags)
 static VALUE
 pg_coder_flags_get(VALUE self)
 {
-	t_pg_coder *this = DATA_PTR(self);
+	t_pg_coder *this = RTYPEDDATA_DATA(self);
 	return INT2NUM(this->flags);
 }
 
@@ -323,7 +349,7 @@ pg_coder_flags_get(VALUE self)
 static VALUE
 pg_coder_needs_quotation_set(VALUE self, VALUE needs_quotation)
 {
-	t_pg_composite_coder *this = DATA_PTR(self);
+	t_pg_composite_coder *this = RTYPEDDATA_DATA(self);
 	this->needs_quotation = RTEST(needs_quotation);
 	return needs_quotation;
 }
@@ -338,7 +364,7 @@ pg_coder_needs_quotation_set(VALUE self, VALUE needs_quotation)
 static VALUE
 pg_coder_needs_quotation_get(VALUE self)
 {
-	t_pg_composite_coder *this = DATA_PTR(self);
+	t_pg_composite_coder *this = RTYPEDDATA_DATA(self);
 	return this->needs_quotation ? Qtrue : Qfalse;
 }
 
@@ -353,7 +379,7 @@ pg_coder_needs_quotation_get(VALUE self)
 static VALUE
 pg_coder_delimiter_set(VALUE self, VALUE delimiter)
 {
-	t_pg_composite_coder *this = DATA_PTR(self);
+	t_pg_composite_coder *this = RTYPEDDATA_DATA(self);
 	StringValue(delimiter);
 	if(RSTRING_LEN(delimiter) != 1)
 		rb_raise( rb_eArgError, "delimiter size must be one byte");
@@ -370,7 +396,7 @@ pg_coder_delimiter_set(VALUE self, VALUE delimiter)
 static VALUE
 pg_coder_delimiter_get(VALUE self)
 {
-	t_pg_composite_coder *this = DATA_PTR(self);
+	t_pg_composite_coder *this = RTYPEDDATA_DATA(self);
 	return rb_str_new(&this->delimiter, 1);
 }
 
@@ -386,12 +412,12 @@ pg_coder_delimiter_get(VALUE self)
 static VALUE
 pg_coder_elements_type_set(VALUE self, VALUE elem_type)
 {
-	t_pg_composite_coder *this = DATA_PTR( self );
+	t_pg_composite_coder *this = RTYPEDDATA_DATA( self );
 
 	if ( NIL_P(elem_type) ){
 		this->elem = NULL;
 	} else if ( rb_obj_is_kind_of(elem_type, rb_cPG_Coder) ){
-		this->elem = DATA_PTR( elem_type );
+		this->elem = RTYPEDDATA_DATA( elem_type );
 	} else {
 		rb_raise( rb_eTypeError, "wrong elements type %s (expected some kind of PG::Coder)",
 				rb_obj_classname( elem_type ) );
@@ -401,10 +427,22 @@ pg_coder_elements_type_set(VALUE self, VALUE elem_type)
 	return elem_type;
 }
 
+static const rb_data_type_t pg_coder_cfunc_type = {
+	"PG::Coder::CFUNC",
+	{
+		(void (*)(void*))NULL,
+		(void (*)(void*))NULL,
+		(size_t (*)(const void *))NULL,
+	},
+	0,
+	0,
+	RUBY_TYPED_FREE_IMMEDIATELY,
+};
+
 void
 pg_define_coder( const char *name, void *func, VALUE base_klass, VALUE nsp )
 {
-	VALUE cfunc_obj = Data_Wrap_Struct( rb_cObject, NULL, NULL, func );
+	VALUE cfunc_obj = TypedData_Wrap_Struct( rb_cObject, &pg_coder_cfunc_type, func );
 	VALUE coder_klass = rb_define_class_under( nsp, name, base_klass );
 	if( nsp==rb_mPG_BinaryEncoder || nsp==rb_mPG_BinaryDecoder )
 		rb_include_module( coder_klass, rb_mPG_BinaryFormatting );