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Merge pull request #9720 from endragor/stack-bottom

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Add a way to retrieve stack bottom of the main thread
This commit is contained in:
Thomas Herzog 2017-07-26 15:30:04 +02:00 committed by GitHub
commit 9caf9fa76f
4 changed files with 25 additions and 0 deletions
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7
core/os/os.cpp
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@ -512,7 +512,13 @@ bool OS::check_feature_support(const String &p_feature) {
return false;
}
void *OS::get_stack_bottom() const {
return _stack_bottom;
}
OS::OS() {
void *volatile stack_bottom;
last_error = NULL;
singleton = this;
_keep_screen_on = true; // set default value to true, because this had been true before godot 2.0.
@ -525,6 +531,7 @@ OS::OS() {
_render_thread_mode = RENDER_THREAD_SAFE;
_allow_hidpi = true;
_stack_bottom = (void *)(&stack_bottom);
}
OS::~OS() {

9
core/os/os.h
View File

@ -60,6 +60,8 @@ class OS {
char *last_error;
void *_stack_bottom;
public:
enum RenderThreadMode {
@ -411,6 +413,13 @@ public:
bool check_feature_support(const String &p_feature);
/**
* Returns the stack bottom of the main thread of the application.
* This may be of use when integrating languages with garbage collectors that
* need to check whether a pointer is on the stack.
*/
virtual void *get_stack_bottom() const;
bool is_hidpi_allowed() const { return _allow_hidpi; }
OS();
virtual ~OS();

5
modules/gdnative/godot/gdnative.cpp
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@ -33,6 +33,7 @@
#include "error_macros.h"
#include "gdnative.h"
#include "global_constants.h"
#include "os/os.h"
#include "project_settings.h"
#include "variant.h"
@ -89,6 +90,10 @@ godot_object GDAPI *godot_global_get_singleton(char *p_name) {
return (godot_object *)ProjectSettings::get_singleton()->get_singleton_object(String(p_name));
} // result shouldn't be freed
void GDAPI *godot_get_stack_bottom() {
return OS::get_singleton()->get_stack_bottom();
}
// MethodBind API
godot_method_bind GDAPI *godot_method_bind_get_method(const char *p_classname, const char *p_methodname) {

4
modules/gdnative/godot/gdnative.h
View File

@ -245,6 +245,10 @@ void GDAPI godot_object_destroy(godot_object *p_o);
godot_object GDAPI *godot_global_get_singleton(char *p_name); // result shouldn't be freed
////// OS API
void GDAPI *godot_get_stack_bottom(); // returns stack bottom of the main thread
////// MethodBind API
typedef struct {