/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/*
* The contents of this file are subject to the Mozilla Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is the Netscape Portable Runtime (NSPR).
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998-2000 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the
* terms of the GNU General Public License Version 2 or later (the
* "GPL"), in which case the provisions of the GPL are applicable
* instead of those above. If you wish to allow use of your
* version of this file only under the terms of the GPL and not to
* allow others to use your version of this file under the MPL,
* indicate your decision by deleting the provisions above and
* replace them with the notice and other provisions required by
* the GPL. If you do not delete the provisions above, a recipient
* may use your version of this file under either the MPL or the
* GPL.
*/
/*
** File: prtypes.h
** Description: Definitions of NSPR's basic types
**
** Prototypes and macros used to make up for deficiencies in ANSI environments
** that we have found.
**
** Since we do not wrap <stdlib.h> and all the other standard headers, authors
** of portable code will not know in general that they need these definitions.
** Instead of requiring these authors to find the dependent uses in their code
** and take the following steps only in those C files, we take steps once here
** for all C files.
**/
#ifndef prtypes_h___
#define prtypes_h___
#ifdef MDCPUCFG
#include MDCPUCFG
#else
#include "prcpucfg.h"
#endif
#include <stddef.h>
/***********************************************************************
** MACROS: PR_EXTERN
** PR_IMPLEMENT
** DESCRIPTION:
** These are only for externally visible routines and globals. For
** internal routines, just use "extern" for type checking and that
** will not export internal cross-file or forward-declared symbols.
** Define a macro for declaring procedures return types. We use this to
** deal with windoze specific type hackery for DLL definitions. Use
** PR_EXTERN when the prototype for the method is declared. Use
** PR_IMPLEMENT for the implementation of the method.
**
** Example:
** in dowhim.h
** PR_EXTERN( void ) DoWhatIMean( void );
** in dowhim.c
** PR_IMPLEMENT( void ) DoWhatIMean( void ) { return; }
**
**
***********************************************************************/
#if defined(WIN32)
#define PR_EXPORT(__type) extern __declspec(dllexport) __type
#define PR_EXPORT_DATA(__type) extern __declspec(dllexport) __type
#define PR_IMPORT(__type) __declspec(dllimport) __type
#define PR_IMPORT_DATA(__type) __declspec(dllimport) __type
#define PR_EXTERN(__type) extern __declspec(dllexport) __type
#define PR_IMPLEMENT(__type) __declspec(dllexport) __type
#define PR_EXTERN_DATA(__type) extern __declspec(dllexport) __type
#define PR_IMPLEMENT_DATA(__type) __declspec(dllexport) __type
#define PR_CALLBACK
#define PR_CALLBACK_DECL
#define PR_STATIC_CALLBACK(__x) static __x
#elif defined(XP_BEOS)
#define PR_EXPORT(__type) extern __declspec(dllexport) __type
#define PR_EXPORT_DATA(__type) extern __declspec(dllexport) __type
#define PR_IMPORT(__type) extern __declspec(dllexport) __type
#define PR_IMPORT_DATA(__type) extern __declspec(dllexport) __type
#define PR_EXTERN(__type) extern __declspec(dllexport) __type
#define PR_IMPLEMENT(__type) __declspec(dllexport) __type
#define PR_EXTERN_DATA(__type) extern __declspec(dllexport) __type
#define PR_IMPLEMENT_DATA(__type) __declspec(dllexport) __type
#define PR_CALLBACK
#define PR_CALLBACK_DECL
#define PR_STATIC_CALLBACK(__x) static __x
#elif defined(WIN16)
#define PR_CALLBACK_DECL __cdecl
#if defined(_WINDLL)
#define PR_EXPORT(__type) extern __type _cdecl _export _loadds
#define PR_IMPORT(__type) extern __type _cdecl _export _loadds
#define PR_EXPORT_DATA(__type) extern __type _export
#define PR_IMPORT_DATA(__type) extern __type _export
#define PR_EXTERN(__type) extern __type _cdecl _export _loadds
#define PR_IMPLEMENT(__type) __type _cdecl _export _loadds
#define PR_EXTERN_DATA(__type) extern __type _export
#define PR_IMPLEMENT_DATA(__type) __type _export
#define PR_CALLBACK __cdecl __loadds
#define PR_STATIC_CALLBACK(__x) static __x PR_CALLBACK
#else /* this must be .EXE */
#define PR_EXPORT(__type) extern __type _cdecl _export
#define PR_IMPORT(__type) extern __type _cdecl _export
#define PR_EXPORT_DATA(__type) extern __type _export
#define PR_IMPORT_DATA(__type) extern __type _export
#define PR_EXTERN(__type) extern __type _cdecl _export
#define PR_IMPLEMENT(__type) __type _cdecl _export
#define PR_EXTERN_DATA(__type) extern __type _export
#define PR_IMPLEMENT_DATA(__type) __type _export
#define PR_CALLBACK __cdecl __loadds
#define PR_STATIC_CALLBACK(__x) __x PR_CALLBACK
#endif /* _WINDLL */
#elif defined(XP_MAC)
#define PR_EXPORT(__type) extern __declspec(export) __type
#define PR_EXPORT_DATA(__type) extern __declspec(export) __type
#define PR_IMPORT(__type) extern __declspec(export) __type
#define PR_IMPORT_DATA(__type) extern __declspec(export) __type
#define PR_EXTERN(__type) extern __declspec(export) __type
#define PR_IMPLEMENT(__type) __declspec(export) __type
#define PR_EXTERN_DATA(__type) extern __declspec(export) __type
#define PR_IMPLEMENT_DATA(__type) __declspec(export) __type
#define PR_CALLBACK
#define PR_CALLBACK_DECL
#define PR_STATIC_CALLBACK(__x) static __x
#else /* Unix */
#define PR_EXPORT(__type) extern __type
#define PR_EXPORT_DATA(__type) extern __type
#define PR_IMPORT(__type) extern __type
#define PR_IMPORT_DATA(__type) extern __type
#define PR_EXTERN(__type) extern __type
#define PR_IMPLEMENT(__type) __type
#define PR_EXTERN_DATA(__type) extern __type
#define PR_IMPLEMENT_DATA(__type) __type
#define PR_CALLBACK
#define PR_CALLBACK_DECL
#define PR_STATIC_CALLBACK(__x) static __x
#endif
#if defined(_NSPR_BUILD_)
#define NSPR_API(__type) PR_EXPORT(__type)
#define NSPR_DATA_API(__type) PR_EXPORT_DATA(__type)
#else
#define NSPR_API(__type) PR_IMPORT(__type)
#define NSPR_DATA_API(__type) PR_IMPORT_DATA(__type)
#endif
/***********************************************************************
** MACROS: PR_BEGIN_MACRO
** PR_END_MACRO
** DESCRIPTION:
** Macro body brackets so that macros with compound statement definitions
** behave syntactically more like functions when called.
***********************************************************************/
#define PR_BEGIN_MACRO do {
#define PR_END_MACRO } while (0)
/***********************************************************************
** MACROS: PR_BEGIN_EXTERN_C
** PR_END_EXTERN_C
** DESCRIPTION:
** Macro shorthands for conditional C++ extern block delimiters.
***********************************************************************/
#ifdef __cplusplus
#define PR_BEGIN_EXTERN_C extern "C" {
#define PR_END_EXTERN_C }
#else
#define PR_BEGIN_EXTERN_C
#define PR_END_EXTERN_C
#endif
/***********************************************************************
** MACROS: PR_BIT
** PR_BITMASK
** DESCRIPTION:
** Bit masking macros. XXX n must be <= 31 to be portable
***********************************************************************/
#define PR_BIT(n) ((PRUint32)1 << (n))
#define PR_BITMASK(n) (PR_BIT(n) - 1)
/***********************************************************************
** MACROS: PR_ROUNDUP
** PR_MIN
** PR_MAX
** PR_ABS
** DESCRIPTION:
** Commonly used macros for operations on compatible types.
***********************************************************************/
#define PR_ROUNDUP(x,y) ((((x)+((y)-1))/(y))*(y))
#define PR_MIN(x,y) ((x)<(y)?(x):(y))
#define PR_MAX(x,y) ((x)>(y)?(x):(y))
#define PR_ABS(x) ((x)<0?-(x):(x))
PR_BEGIN_EXTERN_C
/************************************************************************
** TYPES: PRUint8
** PRInt8
** DESCRIPTION:
** The int8 types are known to be 8 bits each. There is no type that
** is equivalent to a plain "char".
************************************************************************/
#if PR_BYTES_PER_BYTE == 1
typedef unsigned char PRUint8;
/*
** Some cfront-based C++ compilers do not like 'signed char' and
** issue the warning message:
** warning: "signed" not implemented (ignored)
** For these compilers, we have to define PRInt8 as plain 'char'.
** Make sure that plain 'char' is indeed signed under these compilers.
*/
#if (defined(HPUX) && defined(__cplusplus) \
&& !defined(__GNUC__) && __cplusplus < 199707L) \
|| (defined(SCO) && defined(__cplusplus) \
&& !defined(__GNUC__) && __cplusplus == 1L)
typedef char PRInt8;
#else
typedef signed char PRInt8;
#endif
#else
#error No suitable type for PRInt8/PRUint8
#endif
/************************************************************************
* MACROS: PR_INT8_MAX
* PR_INT8_MIN
* PR_UINT8_MAX
* DESCRIPTION:
* The maximum and minimum values of a PRInt8 or PRUint8.
************************************************************************/
#define PR_INT8_MAX 127
#define PR_INT8_MIN (-128)
#define PR_UINT8_MAX 255U
/************************************************************************
** TYPES: PRUint16
** PRInt16
** DESCRIPTION:
** The int16 types are known to be 16 bits each.
************************************************************************/
#if PR_BYTES_PER_SHORT == 2
typedef unsigned short PRUint16;
typedef short PRInt16;
#else
#error No suitable type for PRInt16/PRUint16
#endif
/************************************************************************
* MACROS: PR_INT16_MAX
* PR_INT16_MIN
* PR_UINT16_MAX
* DESCRIPTION:
* The maximum and minimum values of a PRInt16 or PRUint16.
************************************************************************/
#define PR_INT16_MAX 32767
#define PR_INT16_MIN (-32768)
#define PR_UINT16_MAX 65535U
/************************************************************************
** TYPES: PRUint32
** PRInt32
** DESCRIPTION:
** The int32 types are known to be 32 bits each.
************************************************************************/
#if PR_BYTES_PER_INT == 4
typedef unsigned int PRUint32;
typedef int PRInt32;
#define PR_INT32(x) x
#define PR_UINT32(x) x ## U
#elif PR_BYTES_PER_LONG == 4
typedef unsigned long PRUint32;
typedef long PRInt32;
#define PR_INT32(x) x ## L
#define PR_UINT32(x) x ## UL
#else
#error No suitable type for PRInt32/PRUint32
#endif
/************************************************************************
* MACROS: PR_INT32_MAX
* PR_INT32_MIN
* PR_UINT32_MAX
* DESCRIPTION:
* The maximum and minimum values of a PRInt32 or PRUint32.
************************************************************************/
#define PR_INT32_MAX PR_INT32(2147483647)
#define PR_INT32_MIN (-PR_INT32_MAX - 1)
#define PR_UINT32_MAX PR_UINT32(4294967295)
/************************************************************************
** TYPES: PRUint64
** PRInt64
** DESCRIPTION:
** The int64 types are known to be 64 bits each. Care must be used when
** declaring variables of type PRUint64 or PRInt64. Different hardware
** architectures and even different compilers have varying support for
** 64 bit values. The only guaranteed portability requires the use of
** the LL_ macros (see prlong.h).
************************************************************************/
#ifdef HAVE_LONG_LONG
#if PR_BYTES_PER_LONG == 8
typedef long PRInt64;
typedef unsigned long PRUint64;
#elif defined(WIN16)
typedef __int64 PRInt64;
typedef unsigned __int64 PRUint64;
#elif defined(WIN32) && !defined(__GNUC__)
typedef __int64 PRInt64;
typedef unsigned __int64 PRUint64;
#else
typedef long long PRInt64;
typedef unsigned long long PRUint64;
#endif /* PR_BYTES_PER_LONG == 8 */
#else /* !HAVE_LONG_LONG */
typedef struct {
#ifdef IS_LITTLE_ENDIAN
PRUint32 lo, hi;
#else
PRUint32 hi, lo;
#endif
} PRInt64;
typedef PRInt64 PRUint64;
#endif /* !HAVE_LONG_LONG */
/************************************************************************
** TYPES: PRUintn
** PRIntn
** DESCRIPTION:
** The PRIntn types are most appropriate for automatic variables. They are
** guaranteed to be at least 16 bits, though various architectures may
** define them to be wider (e.g., 32 or even 64 bits). These types are
** never valid for fields of a structure.
************************************************************************/
#if PR_BYTES_PER_INT >= 2
typedef int PRIntn;
typedef unsigned int PRUintn;
#else
#error 'sizeof(int)' not sufficient for platform use
#endif
/************************************************************************
** TYPES: PRFloat64
** DESCRIPTION:
** NSPR's floating point type is always 64 bits.
************************************************************************/
typedef double PRFloat64;
/************************************************************************
** TYPES: PRSize
** DESCRIPTION:
** A type for representing the size of objects.
************************************************************************/
typedef size_t PRSize;
/************************************************************************
** TYPES: PROffset32, PROffset64
** DESCRIPTION:
** A type for representing byte offsets from some location.
************************************************************************/
typedef PRInt32 PROffset32;
typedef PRInt64 PROffset64;
/************************************************************************
** TYPES: PRPtrDiff
** DESCRIPTION:
** A type for pointer difference. Variables of this type are suitable
** for storing a pointer or pointer sutraction.
************************************************************************/
typedef ptrdiff_t PRPtrdiff;
/************************************************************************
** TYPES: PRUptrdiff
** DESCRIPTION:
** A type for pointer difference. Variables of this type are suitable
** for storing a pointer or pointer sutraction.
************************************************************************/
typedef unsigned long PRUptrdiff;
/************************************************************************
** TYPES: PRBool
** DESCRIPTION:
** Use PRBool for variables and parameter types. Use PR_FALSE and PR_TRUE
** for clarity of target type in assignments and actual arguments. Use
** 'if (bool)', 'while (!bool)', '(bool) ? x : y' etc., to test booleans
** juast as you would C int-valued conditions.
************************************************************************/
typedef PRIntn PRBool;
#define PR_TRUE 1
#define PR_FALSE 0
/************************************************************************
** TYPES: PRPackedBool
** DESCRIPTION:
** Use PRPackedBOol within structs where bitfields are not desireable
** but minimum and consistant overhead matters.
************************************************************************/
typedef PRUint8 PRPackedBool;
/*
** Status code used by some routines that have a single point of failure or
** special status return.
*/
typedef enum { PR_FAILURE = -1, PR_SUCCESS = 0 } PRStatus;
#ifdef MOZ_UNICODE
/*
* EXPERIMENTAL: This type may be removed in a future release.
*/
#ifndef __PRUNICHAR__
#define __PRUNICHAR__
#if defined(WIN32) || defined(XP_MAC)
typedef wchar_t PRUnichar;
#else
typedef PRUint16 PRUnichar;
#endif
#endif
#endif /* MOZ_UNICODE */
/*
** WARNING: The undocumented data types PRWord and PRUword are
** only used in the garbage collection and arena code. Do not
** use PRWord and PRUword in new code.
**
** A PRWord is an integer that is the same size as a void*.
** It implements the notion of a "word" in the Java Virtual
** Machine. (See Sec. 3.4 "Words", The Java Virtual Machine
** Specification, Addison-Wesley, September 1996.
** http://java.sun.com/docs/books/vmspec/index.html.)
*/
typedef long PRWord;
typedef unsigned long PRUword;
#if defined(NO_NSPR_10_SUPPORT)
#else
/********* ???????????????? FIX ME ??????????????????????????? *****/
/********************** Some old definitions until pr=>ds transition is done ***/
/********************** Also, we are still using NSPR 1.0. GC ******************/
/*
** Fundamental NSPR macros, used nearly everywhere.
*/
#define PR_PUBLIC_API PR_IMPLEMENT
/*
** Macro body brackets so that macros with compound statement definitions
** behave syntactically more like functions when called.
*/
#define NSPR_BEGIN_MACRO do {
#define NSPR_END_MACRO } while (0)
/*
** Macro shorthands for conditional C++ extern block delimiters.
*/
#ifdef NSPR_BEGIN_EXTERN_C
#undef NSPR_BEGIN_EXTERN_C
#endif
#ifdef NSPR_END_EXTERN_C
#undef NSPR_END_EXTERN_C
#endif
#ifdef __cplusplus
#define NSPR_BEGIN_EXTERN_C extern "C" {
#define NSPR_END_EXTERN_C }
#else
#define NSPR_BEGIN_EXTERN_C
#define NSPR_END_EXTERN_C
#endif
#ifdef XP_MAC
#include "protypes.h"
#else
#include "obsolete/protypes.h"
#endif
/********* ????????????? End Fix me ?????????????????????????????? *****/
#endif /* NO_NSPR_10_SUPPORT */
PR_END_EXTERN_C
#endif /* prtypes_h___ */