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/*
Copyright (C) 2009 Red Hat, Inc.
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 2 of
the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef _H_UTILS
#define _H_UTILS
#include "common.h"
#include "red_error_codes.h"
#define MIN(x, y) (((x) <= (y)) ? (x) : (y))
#define MAX(x, y) (((x) >= (y)) ? (x) : (y))
#define ALIGN(a, b) (((a) + ((b) - 1)) & ~((b) - 1))
class Exception: public std::exception {
public:
Exception(const std::string& str, int error_code) : _mess (str), _erro_code (error_code) {}
Exception(const std::string& str) : _mess (str) { _erro_code = SPICEC_ERROR_CODE_ERROR;}
virtual ~Exception() throw () {}
virtual const char* what() const throw () {return _mess.c_str();}
int get_error_code() {return _erro_code;}
private:
std::string _mess;
int _erro_code;
};
#define THROW(format, ...) { \
std::string exption_string; \
string_printf(exption_string, format, ## __VA_ARGS__ ); \
throw Exception(exption_string); \
}
#define THROW_ERR(err, format, ...) { \
std::string exption_string; \
string_printf(exption_string, format, ## __VA_ARGS__ ); \
throw Exception(exption_string, err); \
}
template <class T>
class AutoRef {
public:
AutoRef() : _obj (NULL) {}
AutoRef(T* obj) : _obj (obj) {}
~AutoRef() { if (_obj) _obj->unref();}
T* operator * () {return _obj;}
void reset(T* obj)
{
if (_obj) {
_obj->unref();
}
_obj = obj;
}
T* release()
{
T* ret = _obj;
_obj = NULL;
return ret;
}
private:
T* _obj;
};
static inline int test_bit(const void* addr, int bit)
{
return !!(((uint32_t*)addr)[bit >> 5] & (1 << (bit & 0x1f)));
}
static inline int test_bit_be(const void* addr, int bit)
{
return !!(((uint8_t*)addr)[bit >> 3] & (0x80 >> (bit & 0x07)));
}
static inline void set_bit(const void* addr, int bit)
{
((uint8_t*)addr)[bit >> 5] |= (0x1 << (bit & 0x1f));
}
static inline void set_bit_be(const void* addr, int bit)
{
((uint8_t*)addr)[bit >> 3] |= (0x80 >> (bit & 0x07));
}
void string_vprintf(std::string& str, const char* format, va_list ap);
void string_printf(std::string& str, const char *format, ...);
void wstring_vprintf(std::wstring& str, const wchar_t* format, va_list ap);
void wstring_printf(std::wstring& str, const wchar_t *format, ...);
template<class T>
class FreeObject {
public:
void operator () (T p) { delete p;}
};
template<class T, class FreeRes = FreeObject<T> >
class _AutoRes {
public:
_AutoRes() : _res (NULL) {}
_AutoRes(T* res) : _res (res) {}
~_AutoRes() { set(NULL); }
void set(T* res) {if (_res) _free_res(_res); _res = res; }
T* get() {return _res;}
T* operator -> () { return _res;}
T* release() {T* tmp = _res; _res = NULL; return tmp; }
bool valid() { return !!_res; }
private:
_AutoRes(const _AutoRes&);
_AutoRes& operator = (const _AutoRes&);
private:
T* _res;
FreeRes _free_res;
};
template<class T>
class AutoArray {
public:
AutoArray() : _array (NULL) {}
AutoArray(T* array) : _array (array) {}
~AutoArray() { delete[] _array;}
void set(T* array) { delete[] _array; _array = array;}
T* get() {return _array;}
T* release() {T* tmp = _array; _array = NULL; return tmp; }
T& operator [] (int i) {return _array[i];}
private:
T* _array;
};
#endif
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