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/*
* Copyright (C) 2010-2015 Mamadou DIOP.
*
* This file is part of Open Source Doubango Framework.
*
* DOUBANGO 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 3 of the License, or
* (at your option) any later version.
*
* DOUBANGO 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 DOUBANGO.
*
*/
/**@file tsk_common.h
* Commons.
*/
#ifndef _TINYSAK_COMMON_H_
#define _TINYSAK_COMMON_H_
typedef int tsk_boolean_t;
#define tsk_bool_t tsk_boolean_t
/**@def tsk_true
* True (1).
*/
/**@def tsk_false
* False (0).
*/
#define tsk_true 1
#define tsk_false 0
#define TSK_MIN(a,b) (((a) < (b)) ? (a) : (b))
#define TSK_MAX(a,b) (((a) > (b)) ? (a) : (b))
#define TSK_ABS(a) (((a)< 0) ? -(a) : (a))
#define TSK_CLAMP(nMin, nVal, nMax) ((nVal) > (nMax)) ? (nMax) : (((nVal) < (nMin)) ? (nMin) : (nVal))
// used to avoid doing *((uint32_t*)ptr) which don't respect memory alignment on
// some embedded (ARM,?...) platforms
#define TSK_TO_UINT32(u8_ptr) (((uint32_t)(u8_ptr)[0]) | ((uint32_t)(u8_ptr)[1])<<8 | ((uint32_t)(u8_ptr)[2])<<16 | ((uint32_t)(u8_ptr)[3])<<24)
#define TSK_TO_INT32(u8_ptr) (((int32_t)(u8_ptr)[0]) | ((int32_t)(u8_ptr)[1])<<8 | ((int32_t)(u8_ptr)[2])<<16 | ((int32_t)(u8_ptr)[3])<<24)
#define TSK_TO_UINT16(u8_ptr) (((uint16_t)(u8_ptr)[0]) | ((uint16_t)(u8_ptr)[1])<<8)
typedef int tsk_ssize_t; /**< Signed size */
#if defined (_SIZE_T_DEFINED) || defined(_SIZE_T)
typedef size_t tsk_size_t;
#else
typedef unsigned int tsk_size_t;
#endif
#if defined(va_copy)
# define tsk_va_copy(D, S) va_copy((D), (S))
#elif defined(__va_copy)
# define tsk_va_copy(D, S) __va_copy((D), (S))
#else
# define tsk_va_copy(D, S) ((D) = (S))
#endif
// Type promotion
#if defined(__GNUC__) || TSK_UNDER_APPLE
# define tsk_va_arg_u8(ap) (uint8_t)va_arg((ap), int)
# define tsk_va_arg_u16(ap) (uint16_t)va_arg((ap), int)
# define tsk_va_arg_float(ap) (float)va_arg((ap), double)
#else
# define tsk_va_arg_u8(ap) va_arg((ap), uint8_t)
# define tsk_va_arg_u16(ap) va_arg((ap), uint16_t)
# define tsk_va_arg_float(ap) va_arg((ap), float)
#endif
#ifdef NULL
#define tsk_null NULL /**< Null pointer */
#else
#define tsk_null 0 /**< Null pointer */
#endif
#if defined(__GNUC__) || (HAVE___SYNC_FETCH_AND_ADD && HAVE___SYNC_FETCH_AND_SUB)
# define tsk_atomic_inc(_ptr_) __sync_fetch_and_add((_ptr_), 1)
# define tsk_atomic_dec(_ptr_) __sync_fetch_and_sub((_ptr_), 1)
#elif defined(_MSC_VER)
# define tsk_atomic_inc(_ptr_) InterlockedIncrement((_ptr_))
# define tsk_atomic_dec(_ptr_) InterlockedDecrement((_ptr_))
#else
# define tsk_atomic_inc(_ptr_) ++(*(_ptr_))
# define tsk_atomic_dec(_ptr_) --(*(_ptr_))
#endif
// Substract with saturation
#define tsk_subsat_int32_ptr(pvoid_p0, pvoid_p1, pint_ret) { \
int64_t int64_ret = (int64_t)(((const char*)(pvoid_p0)) - ((const char*)(pvoid_p1))); \
*(pint_ret) = (int)((int64_ret > 2147483647) ? 2147483647 : ((int64_ret < -2147483647) ? -2147483647 : int64_ret)); \
}
#endif /* _TINYSAK_COMMON_H_ */
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