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/**
* ExecuteState.h
*
* Class that keeps the current execution state (this is used when a different
* script or file is eval'ed to store the execution state so that we can switch
* back to the original state.
*
* @author Emiel Bruijntjes <emiel.bruijntjes@copernica.com>
* @copyright 2014 Copernica BV
*/
/**
* Set up namespace
*/
namespace Php {
/**
* Helper class to store and restore the current opcode state
*
* When we're going to execute a set of instructions, we need to store the
* current state of the Zend engine. After the instructions have been processed,
* we can switch back to the original instructions
*/
class ExecuteState
{
private:
/**
* All the original settings
* @var mixed
*/
zend_op_array *_active_op_array;
zval *_return_value;
const zend_op *_opline;
/**
* The new value for 'no-extensions'
* @var int
*/
int _no_extensions;
#ifdef ZTS
/**
* When in thread safety mode, we also keep track of the TSRM_LS var
* @var void***
*/
void ***tsrm_ls;
#endif
public:
/**
* No trivial constructor
*/
ExecuteState() = delete;
/**
* Constructor
* @param no_extensions
*/
ExecuteState(int no_extensions TSRMLS_DC)
{
// store all the original stuff
_active_op_array = CG(active_op_array);
_return_value = EG(current_execute_data)->return_value;
_opline = EG(current_execute_data)->opline;
_no_extensions = no_extensions;
#ifdef ZTS
// copy tsrm_ls param
this->tsrm_ls = tsrm_ls;
#endif
}
/**
* Destructor
*/
virtual ~ExecuteState()
{
// restore all settings
EG(no_extensions) = _no_extensions;
EG(current_execute_data)->opline = _opline;
CG(active_op_array) = _active_op_array;
EG(current_execute_data)->return_value = _return_value;
}
};
/**
* End of namespace
*/
}
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