/*

 util.h - utility functions for interfacing with the various python APIs.

 This software may be used and distributed according to the terms of

 the GNU General Public License, incorporated herein by reference.

*/

#ifndef _HG_UTIL_H_

#define _HG_UTIL_H_

#if PY_MAJOR_VERSION >= 3

#define IS_PY3K

#define PyInt_FromLong PyLong_FromLong

#define PyInt_AsLong PyLong_AsLong

/*

 Mapping of some of the python < 2.x PyString* functions to py3k's PyUnicode.

 The commented names below represent those that are present in the PyBytes

 definitions for python < 2.6 (below in this file) that don't have a direct

 implementation.

*/

#define PyStringObject PyUnicodeObject

#define PyString_Type PyUnicode_Type

#define PyString_Check PyUnicode_Check

#define PyString_CheckExact PyUnicode_CheckExact

#define PyString_CHECK_INTERNED PyUnicode_CHECK_INTERNED

#define PyString_AS_STRING PyUnicode_AsLatin1String

#define PyString_GET_SIZE PyUnicode_GET_SIZE

#define PyString_FromStringAndSize PyUnicode_FromStringAndSize

#define PyString_FromString PyUnicode_FromString

#define PyString_FromFormatV PyUnicode_FromFormatV

#define PyString_FromFormat PyUnicode_FromFormat

/* #define PyString_Size PyUnicode_GET_SIZE */

/* #define PyString_AsString */

/* #define PyString_Repr */

#define PyString_Concat PyUnicode_Concat

#define PyString_ConcatAndDel PyUnicode_AppendAndDel

#define _PyString_Resize PyUnicode_Resize

/* #define _PyString_Eq */

#define PyString_Format PyUnicode_Format

/* #define _PyString_FormatLong */

/* #define PyString_DecodeEscape */

#define _PyString_Join PyUnicode_Join

#define PyString_Decode PyUnicode_Decode

#define PyString_Encode PyUnicode_Encode

#define PyString_AsEncodedObject PyUnicode_AsEncodedObject

#define PyString_AsEncodedString PyUnicode_AsEncodedString

#define PyString_AsDecodedObject PyUnicode_AsDecodedObject

#define PyString_AsDecodedString PyUnicode_AsDecodedUnicode

/* #define PyString_AsStringAndSize */

#define _PyString_InsertThousandsGrouping _PyUnicode_InsertThousandsGrouping

#endif /* PY_MAJOR_VERSION */

#ifdef _WIN32

#ifdef _MSC_VER

/* msvc 6.0 has problems */

#define inline __inline

typedef signed char int8_t;

typedef short int16_t;

typedef long int32_t;

typedef __int64 int64_t;

typedef unsigned char uint8_t;

typedef unsigned short uint16_t;

typedef unsigned long uint32_t;

typedef unsigned __int64 uint64_t;

#else

#include <stdint.h>

#endif

#else

/* not windows */

#include <sys/types.h>

#if defined __BEOS__ && !defined __HAIKU__

#include <ByteOrder.h>

#else

#include <arpa/inet.h>

#endif

#include <inttypes.h>

#endif

#if defined __hpux || defined __SUNPRO_C || defined _AIX

#define inline

#endif

#ifdef __linux

#define inline __inline

#endif

typedef struct {

	PyObject_HEAD

	char state;

	int mode;

	int size;

	int mtime;

} dirstateTupleObject;

extern PyTypeObject dirstateTupleType;

#define dirstate_tuple_check(op) (Py_TYPE(op) == &dirstateTupleType)

static inline uint32_t getbe32(const char *c)

{

	const unsigned char *d = (const unsigned char *)c;

	return ((d[0] << 24) |

		(d[1] << 16) |

		(d[2] << 8) |

		(d[3]));

}

static inline int16_t getbeint16(const char *c)

{

	const unsigned char *d = (const unsigned char *)c;

	return ((d[0] << 8) |

		(d[1]));

}

static inline uint16_t getbeuint16(const char *c)

{

	const unsigned char *d = (const unsigned char *)c;

	return ((d[0] << 8) |

		(d[1]));

}

static inline void putbe32(uint32_t x, char *c)

{

	c[0] = (x >> 24) & 0xff;

	c[1] = (x >> 16) & 0xff;

	c[2] = (x >> 8) & 0xff;

	c[3] = (x) & 0xff;

}

static inline double getbefloat64(const char *c)

{

	const unsigned char *d = (const unsigned char *)c;

	double ret;

	int i;

	uint64_t t = 0;

	for (i = 0; i < 8; i++) {

		t = (t<<8) + d[i];

	}

	memcpy(&ret, &t, sizeof(t));

	return ret;

}

/* This should be kept in sync with normcasespecs in encoding.py. */

enum normcase_spec {

	NORMCASE_LOWER = -1,

	NORMCASE_UPPER = 1,

	NORMCASE_OTHER = 0

};

#define MIN(a, b) (((a)<(b))?(a):(b))

/* VC9 doesn't include bool and lacks stdbool.h based on my searching */

#if defined(_MSC_VER) || __STDC_VERSION__ < 199901L

#define true 1

#define false 0

typedef unsigned char bool;

#else

#include <stdbool.h>

#endif

#endif /* _HG_UTIL_H_ */