Merge pull request #247 from nobu/potential_memory_leak

Potential memory leak

Author: flori

ext/json/ext/generator/generator.c

@@ -526,16 +526,11 @@ static const rb_data_type_t JSON_Generator_State_type = {
 };
 #endif
 
-static JSON_Generator_State *State_allocate(void)
-{
-    JSON_Generator_State *state = ZALLOC(JSON_Generator_State);
-    return state;
-}
-
 static VALUE cState_s_allocate(VALUE klass)
 {
-    JSON_Generator_State *state = State_allocate();
-    return TypedData_Wrap_Struct(klass, &JSON_Generator_State_type, state);
+    JSON_Generator_State *state;
+    return TypedData_Make_Struct(klass, JSON_Generator_State,
+				 &JSON_Generator_State_type, state);
 }
 
 /*

ext/json/ext/generator/generator.h

@@ -112,7 +112,6 @@ static VALUE mFalseClass_to_json(int argc, VALUE *argv, VALUE self);
 static VALUE mNilClass_to_json(int argc, VALUE *argv, VALUE self);
 static VALUE mObject_to_json(int argc, VALUE *argv, VALUE self);
 static void State_free(void *state);
-static JSON_Generator_State *State_allocate(void);
 static VALUE cState_s_allocate(VALUE klass);
 static VALUE cState_configure(VALUE self, VALUE opts);
 static VALUE cState_to_h(VALUE self);
@@ -156,11 +155,11 @@ static inline void *ruby_zalloc(size_t n)
     return p;
 }
 #endif
-#ifdef TypedData_Wrap_Struct
+#ifdef TypedData_Make_Struct
 static const rb_data_type_t JSON_Generator_State_type;
 #define NEW_TYPEDDATA_WRAPPER 1
 #else
-#define TypedData_Wrap_Struct(klass, ignore, json) Data_Wrap_Struct(klass, NULL, State_free, json)
+#define TypedData_Make_Struct(klass, type, ignore, json) Data_Make_Struct(klass, type, NULL, State_free, json)
 #define TypedData_Get_Struct(self, JSON_Generator_State, ignore, json) Data_Get_Struct(self, JSON_Generator_State, json)
 #endif
 

ext/json/ext/parser/parser.c

@@ -2091,14 +2091,6 @@ static VALUE cParser_parse(VALUE self)
   }
 }
 
-
-static JSON_Parser *JSON_allocate(void)
-{
-    JSON_Parser *json = ZALLOC(JSON_Parser);
-    json->fbuffer = fbuffer_alloc(0);
-    return json;
-}
-
 static void JSON_mark(void *ptr)
 {
     JSON_Parser *json = ptr;
@@ -2135,8 +2127,10 @@ static const rb_data_type_t JSON_Parser_type = {
 
 static VALUE cJSON_parser_s_allocate(VALUE klass)
 {
-    JSON_Parser *json = JSON_allocate();
-    return TypedData_Wrap_Struct(klass, &JSON_Parser_type, json);
+    JSON_Parser *json;
+    VALUE obj = TypedData_Make_Struct(klass, JSON_Parser, &JSON_Parser_type, json);
+    json->fbuffer = fbuffer_alloc(0);
+    return obj;
 }
 
 /*

ext/json/ext/parser/parser.h

@@ -68,7 +68,6 @@ static char *JSON_parse_string(JSON_Parser *json, char *p, char *pe, VALUE *resu
 static VALUE convert_encoding(VALUE source);
 static VALUE cParser_initialize(int argc, VALUE *argv, VALUE self);
 static VALUE cParser_parse(VALUE self);
-static JSON_Parser *JSON_allocate(void);
 static void JSON_mark(void *json);
 static void JSON_free(void *json);
 static VALUE cJSON_parser_s_allocate(VALUE klass);
@@ -82,11 +81,11 @@ static inline void *ruby_zalloc(size_t n)
     return p;
 }
 #endif
-#ifdef TypedData_Wrap_Struct
+#ifdef TypedData_Make_Struct
 static const rb_data_type_t JSON_Parser_type;
 #define NEW_TYPEDDATA_WRAPPER 1
 #else
-#define TypedData_Wrap_Struct(klass, ignore, json) Data_Wrap_Struct(klass, JSON_mark, JSON_free, json)
+#define TypedData_Make_Struct(klass, type, ignore, json) Data_Make_Struct(klass, type, NULL, JSON_free, json)
 #define TypedData_Get_Struct(self, JSON_Parser, ignore, json) Data_Get_Struct(self, JSON_Parser, json)
 #endif
 

ext/json/ext/parser/parser.rl

@@ -814,14 +814,6 @@ static VALUE cParser_parse(VALUE self)
   }
 }
 
-
-static JSON_Parser *JSON_allocate(void)
-{
-    JSON_Parser *json = ZALLOC(JSON_Parser);
-    json->fbuffer = fbuffer_alloc(0);
-    return json;
-}
-
 static void JSON_mark(void *ptr)
 {
     JSON_Parser *json = ptr;
@@ -858,8 +850,10 @@ static const rb_data_type_t JSON_Parser_type = {
 
 static VALUE cJSON_parser_s_allocate(VALUE klass)
 {
-    JSON_Parser *json = JSON_allocate();
-    return TypedData_Wrap_Struct(klass, &JSON_Parser_type, json);
+    JSON_Parser *json;
+    VALUE obj = TypedData_Make_Struct(klass, JSON_Parser, &JSON_Parser_type, json);
+    json->fbuffer = fbuffer_alloc(0);
+    return obj;
 }
 
 /*