/* $Id: wi-base.h 4645 2007-02-17 13:54:46Z morris $ */

/*
 *  Copyright (c) 2005-2007 Axel Andersson
 *  All rights reserved.
 *
 *  Redistribution and use in source and binary forms, with or without
 *  modification, are permitted provided that the following conditions
 *  are met:
 *  1. Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer.
 *  2. Redistributions in binary form must reproduce the above copyright
 *     notice, this list of conditions and the following disclaimer in the
 *     documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef WI_BASE_H
#define WI_BASE_H 1

#include <sys/time.h>
#include <stdio.h>
#include <math.h>
#include <inttypes.h>

#ifdef __cplusplus
#define WI_EXPORT					extern "C"
#else
#define WI_EXPORT					extern
#endif

#define WI_INLINE					inline
#define WI_STATIC_INLINE			static inline

#ifdef __GNUC__
#define WI_DEPRECATED				__attribute__ ((deprecated))
#define WI_PRINTF_FORMAT(x, y)		__attribute__ ((format (printf, x, y)))
#define WI_STRFTIME_FORMAT(x)		__attribute__ ((format (strftime, x, 0)))
#else
#define WI_DEPRECATED
#define WI_PRINTF_FORMAT(x, y)
#define WI_STRFTIME_FORMAT(x)
#endif

#if __GNUC__ == 4 || __GNUC__ > 4
#define WI_SENTINEL					__attribute__ ((sentinel))
#else
#define WI_SENTINEL
#endif

#if __LP64__
#define WI_64						1

typedef int64_t						wi_integer_t;
typedef uint64_t					wi_uinteger_t;

#define WI_INTEGER_MAX				9223372036854775807LL
#define WI_UINTEGER_MAX				18446744073709551615ULL
#define WI_INTEGER_MIN				(-WI_INTEGER_MAX-1)
#else
#define WI_32						1

typedef int32_t						wi_integer_t;
typedef uint32_t					wi_uinteger_t;

#define WI_INTEGER_MAX				2147483647
#define WI_UINTEGER_MAX				4294967295U
#define WI_INTEGER_MIN				(-WI_INTEGER_MAX-1)
#endif


enum {
	WI_NOT_FOUND					= WI_INTEGER_MAX
};


struct _wi_range {
	wi_uinteger_t					location;
	wi_uinteger_t					length;
};
typedef struct _wi_range			wi_range_t;


WI_STATIC_INLINE wi_range_t wi_make_range(wi_uinteger_t location, wi_uinteger_t length) {
	wi_range_t		range = { location, length };
	
	return range;
}



struct _wi_size {
	wi_uinteger_t					width;
	wi_uinteger_t					height;
};
typedef struct _wi_size				wi_size_t;


WI_STATIC_INLINE wi_size_t wi_make_size(wi_uinteger_t width, wi_uinteger_t height) {
	wi_size_t		size = { width, height };
	
	return size;
}



struct _wi_point {
	wi_uinteger_t					x;
	wi_uinteger_t					y;
};
typedef struct _wi_point			wi_point_t;


WI_STATIC_INLINE wi_point_t wi_make_point(wi_uinteger_t x, wi_uinteger_t y) {
	wi_point_t		point = { x, y };
	
	return point;
}



WI_STATIC_INLINE struct timeval wi_dtotv(double d) {
	struct timeval	tv;

	tv.tv_sec = (time_t) floor(d);
	tv.tv_usec = (suseconds_t) ((d - tv.tv_sec) * 1000000.0);

	return tv;
}



WI_STATIC_INLINE double wi_tvtod(struct timeval tv) {
	return tv.tv_sec + ((double) tv.tv_usec / 1000000.0);
}



WI_STATIC_INLINE struct timespec wi_dtots(double d) {
	struct timespec	ts;

	ts.tv_sec = (time_t) floor(d);
	ts.tv_nsec = (long) ((d - ts.tv_sec) * 1000000000.0);

	return ts;
}



WI_STATIC_INLINE double wi_tstod(struct timespec ts) {
	return ts.tv_sec + ((double) ts.tv_nsec / 1000000000.0);
}



WI_STATIC_INLINE wi_uinteger_t wi_log2(wi_uinteger_t n) {
	return n < 2 ? 0 : wi_log2(n >> 1) + 1;
}



WI_STATIC_INLINE wi_uinteger_t wi_exp2m1(wi_uinteger_t n) {
	return (1 << n) - 1;
}

	
typedef int32_t						wi_boolean_t;

#ifndef true
#define true						1
#endif

#ifndef false
#define false						0
#endif


typedef wi_uinteger_t				wi_hash_code_t;

typedef double						wi_time_interval_t;

typedef struct _wi_address			wi_address_t;
typedef struct _wi_array			wi_array_t;
typedef struct _wi_string			wi_string_t;

typedef struct _wi_p7_message		wi_p7_message_t;
typedef struct _wi_p7_socket		wi_p7_socket_t;
typedef struct _wi_p7_spec			wi_p7_spec_t;


WI_EXPORT void						wi_initialize(void);
WI_EXPORT void						wi_load(int, const char **);

WI_EXPORT void						wi_abort(void);
WI_EXPORT void						wi_crash(void);


WI_EXPORT wi_string_t				*wi_root_path;

#endif /* WI_BASE_H */