Leaks

CHANGELOG.carto.md

@@ -1,5 +1,15 @@
 # CARTO node-mapnik changelog
 
+## 3.6.2-carto.16
+
+**Release date**: 2019-XX-XX
+
+Changes:
+ - Silence GCC warnings around uv_after_work_cb functions.
+ - Tests: Avoid Buffer() constructor.
+ - Avoid dangling references when an error happenned before an async task.
+ - mapnik_image: Avoid throwing in callbacks as it leaks resources.
+
 ## 3.6.2-carto.15
 
 **Release date**: 2019-05-20

src/blend.cpp

@@ -418,7 +418,7 @@ void Work_Blend(uv_work_t* req)
     Blend_Encode(target, baton, alpha);
 }
 
-void Work_AfterBlend(uv_work_t* req) {
+void EIO_AfterBlend(uv_work_t* req, int) {
     Nan::HandleScope scope;
     BlendBaton* baton = static_cast<BlendBaton*>(req->data);
 	Nan::AsyncResource async_resource(__func__);
@@ -674,7 +674,7 @@ NAN_METHOD(Blend) {
         baton->images.push_back(image);
     }
 
-    uv_queue_work(uv_default_loop(), &(baton.release())->request, Work_Blend, (uv_after_work_cb)Work_AfterBlend);
+    uv_queue_work(uv_default_loop(), &(baton.release())->request, Work_Blend, (uv_after_work_cb)EIO_AfterBlend);
 
     return;
 }

src/blend.hpp

@@ -4,6 +4,7 @@
 #pragma GCC diagnostic push
 #pragma GCC diagnostic ignored "-Wunused-parameter"
 #pragma GCC diagnostic ignored "-Wshadow"
+#pragma GCC diagnostic ignored "-Wcast-function-type"
 #include <nan.h>
 #pragma GCC diagnostic pop
 

src/ds_emitter.hpp

@@ -5,6 +5,7 @@
 #pragma GCC diagnostic push
 #pragma GCC diagnostic ignored "-Wunused-parameter"
 #pragma GCC diagnostic ignored "-Wshadow"
+#pragma GCC diagnostic ignored "-Wcast-function-type"
 #include <nan.h>
 #pragma GCC diagnostic pop
 

src/mapnik_cairo_surface.hpp

@@ -4,6 +4,7 @@
 #pragma GCC diagnostic push
 #pragma GCC diagnostic ignored "-Wunused-parameter"
 #pragma GCC diagnostic ignored "-Wshadow"
+#pragma GCC diagnostic ignored "-Wcast-function-type"
 #include <nan.h>
 #pragma GCC diagnostic pop
 

src/mapnik_color.hpp

@@ -4,6 +4,7 @@
 #pragma GCC diagnostic push
 #pragma GCC diagnostic ignored "-Wunused-parameter"
 #pragma GCC diagnostic ignored "-Wshadow"
+#pragma GCC diagnostic ignored "-Wcast-function-type"
 #include <nan.h>
 #pragma GCC diagnostic pop
 

src/mapnik_datasource.hpp

@@ -4,6 +4,7 @@
 #pragma GCC diagnostic push
 #pragma GCC diagnostic ignored "-Wunused-parameter"
 #pragma GCC diagnostic ignored "-Wshadow"
+#pragma GCC diagnostic ignored "-Wcast-function-type"
 #include <nan.h>
 #pragma GCC diagnostic pop
 

src/mapnik_expression.hpp

@@ -4,6 +4,7 @@
 #pragma GCC diagnostic push
 #pragma GCC diagnostic ignored "-Wunused-parameter"
 #pragma GCC diagnostic ignored "-Wshadow"
+#pragma GCC diagnostic ignored "-Wcast-function-type"
 #include <nan.h>
 #pragma GCC diagnostic pop
 

src/mapnik_feature.hpp

@@ -4,6 +4,7 @@
 #pragma GCC diagnostic push
 #pragma GCC diagnostic ignored "-Wunused-parameter"
 #pragma GCC diagnostic ignored "-Wshadow"
+#pragma GCC diagnostic ignored "-Wcast-function-type"
 #include <nan.h>
 #pragma GCC diagnostic pop
 

src/mapnik_featureset.hpp

@@ -4,6 +4,7 @@
 #pragma GCC diagnostic push
 #pragma GCC diagnostic ignored "-Wunused-parameter"
 #pragma GCC diagnostic ignored "-Wshadow"
+#pragma GCC diagnostic ignored "-Wcast-function-type"
 #include <nan.h>
 #pragma GCC diagnostic pop
 

src/mapnik_geometry.cpp

@@ -244,8 +244,8 @@ NAN_METHOD(Geometry::toJSON)
     }
     v8::Local<v8::Value> callback = info[info.Length()-1];
     closure->cb.Reset(callback.As<v8::Function>());
-    uv_queue_work(uv_default_loop(), &closure->request, to_json, (uv_after_work_cb)after_to_json);
-    closure->g->Ref();
+    uv_queue_work(uv_default_loop(), &closure->request, to_json, (uv_after_work_cb)EIO_After_to_json);
+    closure->g->_ref();
     return;
 }
 
@@ -292,7 +292,7 @@ void Geometry::to_json(uv_work_t* req)
     }
 }
 
-void Geometry::after_to_json(uv_work_t* req)
+void Geometry::EIO_After_to_json(uv_work_t* req, int)
 {
     Nan::HandleScope scope;
     to_json_baton *closure = static_cast<to_json_baton *>(req->data);
@@ -311,7 +311,7 @@ void Geometry::after_to_json(uv_work_t* req)
         v8::Local<v8::Value> argv[2] = { Nan::Null(), Nan::New<v8::String>(closure->result).ToLocalChecked() };
         async_resource.runInAsyncScope(Nan::GetCurrentContext()->Global(), Nan::New(closure->cb), 2, argv);
     }
-    closure->g->Unref();
+    closure->g->_unref();
     if (closure->tr) {
         closure->tr->_unref();
     }

src/mapnik_geometry.hpp

@@ -4,6 +4,7 @@
 #pragma GCC diagnostic push
 #pragma GCC diagnostic ignored "-Wunused-parameter"
 #pragma GCC diagnostic ignored "-Wshadow"
+#pragma GCC diagnostic ignored "-Wcast-function-type"
 #include <nan.h>
 #pragma GCC diagnostic pop
 
@@ -26,8 +27,11 @@ class Geometry: public Nan::ObjectWrap {
     static NAN_METHOD(toJSON);
     static NAN_METHOD(toJSONSync);
     static void to_json(uv_work_t* req);
-    static void after_to_json(uv_work_t* req);
+    static void EIO_After_to_json(uv_work_t* req, int);
     Geometry(mapnik::feature_ptr f);
+
+    void _ref() { Ref(); }
+    void _unref() { Unref(); }
 private:
     ~Geometry();
     mapnik::feature_ptr feat_;

src/mapnik_grid.cpp

@@ -162,7 +162,7 @@ NAN_METHOD(Grid::clear)
     closure->error = false;
     closure->cb.Reset(callback.As<v8::Function>());
     uv_queue_work(uv_default_loop(), &closure->request, EIO_Clear, (uv_after_work_cb)EIO_AfterClear);
-    g->Ref();
+    g->_ref();
     return;
 }
 
@@ -184,7 +184,7 @@ void Grid::EIO_Clear(uv_work_t* req)
     }
 }
 
-void Grid::EIO_AfterClear(uv_work_t* req)
+void Grid::EIO_AfterClear(uv_work_t* req, int)
 {
     Nan::HandleScope scope;
 	Nan::AsyncResource async_resource(__func__);
@@ -204,7 +204,7 @@ void Grid::EIO_AfterClear(uv_work_t* req)
         v8::Local<v8::Value> argv[2] = { Nan::Null(), closure->g->handle() };
         async_resource.runInAsyncScope(Nan::GetCurrentContext()->Global(), Nan::New(closure->cb), 2, argv);
     }
-    closure->g->Unref();
+    closure->g->_unref();
     closure->cb.Reset();
     delete closure;
 }
@@ -522,7 +522,7 @@ NAN_METHOD(Grid::encode)
     closure->cb.Reset(callback.As<v8::Function>());
     // todo - reserve lines size?
     uv_queue_work(uv_default_loop(), &closure->request, EIO_Encode, (uv_after_work_cb)EIO_AfterEncode);
-    g->Ref();
+    g->_ref();
     return;
 }
 
@@ -548,7 +548,7 @@ void Grid::EIO_Encode(uv_work_t* req)
     }
 }
 
-void Grid::EIO_AfterEncode(uv_work_t* req)
+void Grid::EIO_AfterEncode(uv_work_t* req, int)
 {
     Nan::HandleScope scope;
 	Nan::AsyncResource async_resource(__func__);
@@ -602,7 +602,7 @@ void Grid::EIO_AfterEncode(uv_work_t* req)
         async_resource.runInAsyncScope(Nan::GetCurrentContext()->Global(), Nan::New(closure->cb), 2, argv);
     }
 
-    closure->g->Unref();
+    closure->g->_unref();
     closure->cb.Reset();
     delete closure;
 }

src/mapnik_grid.hpp

@@ -6,6 +6,7 @@
 #pragma GCC diagnostic push
 #pragma GCC diagnostic ignored "-Wunused-parameter"
 #pragma GCC diagnostic ignored "-Wshadow"
+#pragma GCC diagnostic ignored "-Wcast-function-type"
 #include <nan.h>
 #pragma GCC diagnostic pop
 
@@ -25,7 +26,7 @@ class Grid: public Nan::ObjectWrap {
     static NAN_METHOD(encodeSync);
     static NAN_METHOD(encode);
     static void EIO_Encode(uv_work_t* req);
-    static void EIO_AfterEncode(uv_work_t* req);
+    static void EIO_AfterEncode(uv_work_t* req, int);
 
     static NAN_METHOD(addField);
     static NAN_METHOD(fields);
@@ -37,7 +38,7 @@ class Grid: public Nan::ObjectWrap {
     static NAN_METHOD(clearSync);
     static NAN_METHOD(clear);
     static void EIO_Clear(uv_work_t* req);
-    static void EIO_AfterClear(uv_work_t* req);
+    static void EIO_AfterClear(uv_work_t* req, int);
 
     static NAN_GETTER(get_key);
     static NAN_SETTER(set_key);

src/mapnik_grid_view.cpp

@@ -152,7 +152,7 @@ NAN_METHOD(GridView::isSolid)
     closure->error = false;
     closure->cb.Reset(callback.As<v8::Function>());
     uv_queue_work(uv_default_loop(), &closure->request, EIO_IsSolid, (uv_after_work_cb)EIO_AfterIsSolid);
-    g->Ref();
+    g->_ref();
     return;
 }
 void GridView::EIO_IsSolid(uv_work_t* req)
@@ -183,7 +183,7 @@ void GridView::EIO_IsSolid(uv_work_t* req)
     }
 }
 
-void GridView::EIO_AfterIsSolid(uv_work_t* req)
+void GridView::EIO_AfterIsSolid(uv_work_t* req, int)
 {
     Nan::HandleScope scope;
 	Nan::AsyncResource async_resource(__func__);
@@ -210,7 +210,7 @@ void GridView::EIO_AfterIsSolid(uv_work_t* req)
             async_resource.runInAsyncScope(Nan::GetCurrentContext()->Global(), Nan::New(closure->cb), 2, argv);
         }
     }
-    closure->g->Unref();
+    closure->g->_unref();
     closure->cb.Reset();
     delete closure;
 }
@@ -455,7 +455,7 @@ NAN_METHOD(GridView::encode)
     closure->add_features = add_features;
     closure->cb.Reset(callback);
     uv_queue_work(uv_default_loop(), &closure->request, EIO_Encode, (uv_after_work_cb)EIO_AfterEncode);
-    g->Ref();
+    g->_ref();
     return;
 }
 
@@ -482,7 +482,7 @@ void GridView::EIO_Encode(uv_work_t* req)
     }
 }
 
-void GridView::EIO_AfterEncode(uv_work_t* req)
+void GridView::EIO_AfterEncode(uv_work_t* req, int)
 {
     Nan::HandleScope scope;
 	Nan::AsyncResource async_resource(__func__);
@@ -534,7 +534,7 @@ void GridView::EIO_AfterEncode(uv_work_t* req)
         async_resource.runInAsyncScope(Nan::GetCurrentContext()->Global(), Nan::New(closure->cb), 2, argv);
     }
 
-    closure->g->Unref();
+    closure->g->_unref();
     closure->cb.Reset();
     delete closure;
 }

src/mapnik_grid_view.hpp

@@ -6,6 +6,7 @@
 #pragma GCC diagnostic push
 #pragma GCC diagnostic ignored "-Wunused-parameter"
 #pragma GCC diagnostic ignored "-Wshadow"
+#pragma GCC diagnostic ignored "-Wcast-function-type"
 #include <nan.h>
 #pragma GCC diagnostic pop
 
@@ -29,20 +30,23 @@ class GridView: public Nan::ObjectWrap {
     static NAN_METHOD(encode);
     static NAN_METHOD(fields);
     static void EIO_Encode(uv_work_t* req);
-    static void EIO_AfterEncode(uv_work_t* req);
+    static void EIO_AfterEncode(uv_work_t* req, int);
 
     static NAN_METHOD(width);
     static NAN_METHOD(height);
     static NAN_METHOD(isSolid);
     static void EIO_IsSolid(uv_work_t* req);
-    static void EIO_AfterIsSolid(uv_work_t* req);
+    static void EIO_AfterIsSolid(uv_work_t* req, int);
     static v8::Local<v8::Value> _isSolidSync(Nan::NAN_METHOD_ARGS_TYPE info);
     static NAN_METHOD(isSolidSync);
     static NAN_METHOD(getPixel);
 
     GridView(Grid * JSGrid);
     inline grid_view_ptr get() { return this_; }
 
+    void _ref() { Ref(); }
+    void _unref() { Unref(); }
+
 private:
     ~GridView();
     grid_view_ptr this_;