ruby: Fix build failures with Ruby 3.4

Ruby 3.4 started to actually mark some deprecated functions as
*deprecated* now resulting in compiler warnings (which due to -Werror we
treat as errors and thus the build fails).

The *new* functions were actually introduced back in Ruby 1.9.2, so have
been around for quite some time. We claim support for Ruby 2.0 onwards
so this is more than fine.

The new API replaces the old 'mark' and 'free' parameters with a struct
that allows for more fine tuning/configuration. We never made use of
either of those parameters and so the only member of this struct we
*need* to set is the structure wrapper name.

Ruby pytests still pass after this change...

Closes: nginx#1525
Link: <https://bugs.ruby-lang.org/issues/19998>
Signed-off-by: Andrew Clayton <[email protected]>

src/ruby/nxt_ruby_stream_io.c

@@ -21,6 +21,9 @@ static VALUE nxt_ruby_stream_io_flush(VALUE obj);
 static VALUE nxt_ruby_stream_io_close(VALUE obj);
 
 
+static const rb_data_type_t  nxt_rctx_dt = { .wrap_struct_name = "rctx" };
+
+
 VALUE
 nxt_ruby_stream_io_input_init(void)
 {
@@ -73,7 +76,7 @@ nxt_ruby_stream_io_new(VALUE class, VALUE arg)
 {
     VALUE  self;
 
-    self = Data_Wrap_Struct(class, 0, 0, (void *) (uintptr_t) arg);
+    self = TypedData_Wrap_Struct(class, &nxt_rctx_dt, (void *)(uintptr_t)arg);
 
     rb_obj_call_init(self, 0, NULL);
 
@@ -96,7 +99,7 @@ nxt_ruby_stream_io_gets(VALUE obj)
     nxt_ruby_ctx_t           *rctx;
     nxt_unit_request_info_t  *req;
 
-    Data_Get_Struct(obj, nxt_ruby_ctx_t, rctx);
+    TypedData_Get_Struct(obj, nxt_ruby_ctx_t, &nxt_rctx_dt, rctx);
     req = rctx->req;
 
     if (req->content_length == 0) {
@@ -152,7 +155,7 @@ nxt_ruby_stream_io_read(VALUE obj, VALUE args)
     long            copy_size, u_size;
     nxt_ruby_ctx_t  *rctx;
 
-    Data_Get_Struct(obj, nxt_ruby_ctx_t, rctx);
+    TypedData_Get_Struct(obj, nxt_ruby_ctx_t, &nxt_rctx_dt, rctx);
 
     copy_size = rctx->req->content_length;
 
@@ -208,7 +211,7 @@ nxt_ruby_stream_io_puts(VALUE obj, VALUE args)
         return Qnil;
     }
 
-    Data_Get_Struct(obj, nxt_ruby_ctx_t, rctx);
+    TypedData_Get_Struct(obj, nxt_ruby_ctx_t, &nxt_rctx_dt, rctx);
 
     nxt_ruby_stream_io_s_write(rctx, RARRAY_PTR(args)[0]);
 
@@ -226,7 +229,7 @@ nxt_ruby_stream_io_write(VALUE obj, VALUE args)
         return Qnil;
     }
 
-    Data_Get_Struct(obj, nxt_ruby_ctx_t, rctx);
+    TypedData_Get_Struct(obj, nxt_ruby_ctx_t, &nxt_rctx_dt, rctx);
 
     len = nxt_ruby_stream_io_s_write(rctx, RARRAY_PTR(args)[0]);