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/*
* %CopyrightBegin%
*
* Copyright Ericsson AB 2014-2016. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* %CopyrightEnd%
*/
#ifndef _WXE_MEMORY_H
#define _WXE_MEMORY_H
class intListElement {
public:
intListElement(int Element) {car = Element; cdr = NULL;};
intListElement(int Element, intListElement *list)
{car = Element; cdr = list;};
int car;
intListElement *cdr;
};
class intList {
public:
intList() {list = NULL;};
~intList() {
intListElement *head = list;
while(head) {
intListElement *tail=head->cdr;
delete head;
head = tail;
} };
bool IsEmpty() {return list == NULL;};
void Append(int Element) { list = new intListElement(Element, list); };
int Pop() {
intListElement *temp = list;
int res = list->car;
list = temp->cdr;
delete temp;
return res;
}
intListElement *list;
};
class wxe_badarg
{
public:
wxe_badarg(int Ref) : ref(Ref) { var = NULL; } ;
wxe_badarg(const char * Var) : var(Var) { } ;
int ref;
const char * var;
};
class wxeMemEnv {
public:
wxeMemEnv() {
create();
};
void create() {
ref2ptr = (void **) enif_alloc(128*sizeof(void *));
ref2ptr[0] = NULL;
next = 1;
max = 128;
tmp_env = enif_alloc_env();
free.list = NULL;
};
// ~wxeMemEnv() {}; // done in WxeApp::destroyMemEnv
void * getPtr(ErlNifEnv *env, ERL_NIF_TERM term, const char *arg, ERL_NIF_TERM * type = NULL) {
int index, tpl_sz;
const ERL_NIF_TERM *tpl;
if(!enif_get_tuple(env, term, &tpl_sz, &tpl) && tpl_sz != 4) throw wxe_badarg(arg);
if(!enif_get_int(env, tpl[1], &index)) throw wxe_badarg(arg);
if(type) *type = tpl[2];
void * temp = ref2ptr[index];
if((index < next) && ((index == 0) || (temp != (void *)NULL)))
return temp;
throw wxe_badarg(arg);
};
int next;
int max;
void ** ref2ptr;
intList free;
wxe_me_ref *me_ref; // backreference
ErlNifPid owner;
ErlNifEnv *tmp_env;
};
class wxeRefData {
public:
wxeRefData(unsigned int dref, int ttype, int is_new, wxeMemEnv *menv) :
ref(dref), type(ttype), memenv(menv), alloc_in_erl(is_new) { enif_set_pid_undefined(&pid); } ;
int ref;
int type;
// 0 = wxWindow subclasses, 1 = wxObject subclasses
// 2 = wxDialog subclasses, 3 = allocated wxObjects but not returned from new
// 4 = wxGraphicsObjects or it's subclasses that can no be overloaded
// 8 = wxObjects that should always be deleted directly (wxDC derivates)
// > 10 classes which lack virtual destr, or are supposed to be allocated on
// the stack
wxeMemEnv *memenv;
bool alloc_in_erl;
ErlNifPid pid;
};
// WX_DECLARE_HASH_MAP(ErlNifPid, wxeMemEnv*, wxIntegerHash, wxIntegerEqual, wxeMemMap);
WX_DECLARE_VOIDPTR_HASH_MAP(wxeRefData *, ptrMap);
#endif
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