2001-07-06 04:32:29 +02:00
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|
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/*
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* Internal function/structure declaration. Do NOT include in your
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* application.
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*
|
2007-03-11 11:10:28 +01:00
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* Please see the file LICENSE.txt in the source's root directory.
|
2001-07-06 04:32:29 +02:00
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*
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* This file written by Ryan C. Gordon.
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*/
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#ifndef _INCLUDE_PHYSFS_INTERNAL_H_
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#define _INCLUDE_PHYSFS_INTERNAL_H_
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#ifndef __PHYSICSFS_INTERNAL__
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#error Do not include this header from your applications.
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#endif
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2017-07-12 05:32:46 +02:00
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/* Make sure everything that includes this header exports no symbols by
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default. physfs.h uses function attributes to mark only the public API as
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visible. */
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#if (defined(__GNUC__) && (__GNUC__ >= 4)) || defined(__clang__)
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#pragma GCC visibility push(hidden)
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#endif
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/* Turn off MSVC warnings that are aggressively anti-portability. */
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#ifdef _MSC_VER
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#define _CRT_SECURE_NO_WARNINGS 1
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#endif
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2002-03-24 20:47:33 +01:00
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#include "physfs.h"
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2010-09-07 01:35:01 +02:00
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/* The holy trinity. */
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
|
2007-03-15 09:16:23 +01:00
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2012-03-19 07:04:27 +01:00
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#include "physfs_platforms.h"
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2002-11-22 07:24:10 +01:00
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#include <assert.h>
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2007-03-19 08:44:04 +01:00
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/* !!! FIXME: remove this when revamping stack allocation code... */
|
2017-07-06 03:30:39 +02:00
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#if defined(_MSC_VER) || defined(__MINGW32__) || defined(__WATCOMC__)
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2007-03-19 08:44:04 +01:00
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#include <malloc.h>
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#endif
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2012-03-20 01:40:22 +01:00
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#if PHYSFS_PLATFORM_SOLARIS
|
2010-04-08 15:56:51 +02:00
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#include <alloca.h>
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#endif
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2002-03-24 20:47:33 +01:00
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#ifdef __cplusplus
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extern "C" {
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#endif
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2008-03-12 22:22:22 +01:00
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|
#ifdef __GNUC__
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2008-03-12 22:42:16 +01:00
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#define PHYSFS_MINIMUM_GCC_VERSION(major, minor) \
|
2008-03-12 22:22:22 +01:00
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|
( ((__GNUC__ << 16) + __GNUC_MINOR__) >= (((major) << 16) + (minor)) )
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#else
|
2008-03-12 22:42:16 +01:00
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|
#define PHYSFS_MINIMUM_GCC_VERSION(major, minor) (0)
|
2008-03-12 22:22:22 +01:00
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#endif
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|
2010-08-21 20:29:40 +02:00
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|
#ifdef __cplusplus
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|
|
/* C++ always has a real inline keyword. */
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#elif (defined macintosh) && !(defined __MWERKS__)
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# define inline
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|
#elif (defined _MSC_VER)
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|
|
# define inline __inline
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|
#endif
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|
2012-03-19 07:04:27 +01:00
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#if PHYSFS_PLATFORM_LINUX && !defined(_FILE_OFFSET_BITS)
|
2012-03-18 17:31:29 +01:00
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|
|
#define _FILE_OFFSET_BITS 64
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|
|
#endif
|
2017-07-09 23:46:53 +02:00
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|
|
/* a real C99-compliant snprintf() is in Visual Studio 2015,
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|
|
but just use this everywhere for binary compatibility. */
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|
|
#if defined(_MSC_VER)
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|
|
int __PHYSFS_msvc_vsnprintf(char *outBuf, size_t size, const char *format, va_list ap);
|
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|
|
int __PHYSFS_msvc_snprintf(char *outBuf, size_t size, const char *format, ...);
|
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|
|
#define vsnprintf __PHYSFS_msvc_vsnprintf
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|
|
#define snprintf __PHYSFS_msvc_snprintf
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|
|
#endif
|
2012-03-18 17:31:29 +01:00
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|
|
2007-03-24 04:54:58 +01:00
|
|
|
/*
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|
|
|
* Interface for small allocations. If you need a little scratch space for
|
|
|
|
* a throwaway buffer or string, use this. It will make small allocations
|
|
|
|
* on the stack if possible, and use allocator.Malloc() if they are too
|
|
|
|
* large. This helps reduce malloc pressure.
|
|
|
|
* There are some rules, though:
|
|
|
|
* NEVER return a pointer from this, as stack-allocated buffers go away
|
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|
|
* when your function returns.
|
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|
|
* NEVER allocate in a loop, as stack-allocated pointers will pile up. Call
|
|
|
|
* a function that uses smallAlloc from your loop, so the allocation can
|
|
|
|
* free each time.
|
|
|
|
* NEVER call smallAlloc with any complex expression (it's a macro that WILL
|
|
|
|
* have side effects...it references the argument multiple times). Use a
|
|
|
|
* variable or a literal.
|
|
|
|
* NEVER free a pointer from this with anything but smallFree. It will not
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|
|
|
* be a valid pointer to the allocator, regardless of where the memory came
|
|
|
|
* from.
|
|
|
|
* NEVER realloc a pointer from this.
|
|
|
|
* NEVER forget to use smallFree: it may not be a pointer from the stack.
|
|
|
|
* NEVER forget to check for NULL...allocation can fail here, of course!
|
|
|
|
*/
|
2012-03-10 04:27:36 +01:00
|
|
|
#define __PHYSFS_SMALLALLOCTHRESHOLD 256
|
2007-03-24 04:54:58 +01:00
|
|
|
void *__PHYSFS_initSmallAlloc(void *ptr, PHYSFS_uint64 len);
|
|
|
|
|
|
|
|
#define __PHYSFS_smallAlloc(bytes) ( \
|
2012-03-12 06:33:16 +01:00
|
|
|
__PHYSFS_initSmallAlloc( \
|
|
|
|
(((bytes) < __PHYSFS_SMALLALLOCTHRESHOLD) ? \
|
|
|
|
alloca((size_t)((bytes)+sizeof(void*))) : NULL), (bytes)) \
|
2007-03-24 04:54:58 +01:00
|
|
|
)
|
|
|
|
|
|
|
|
void __PHYSFS_smallFree(void *ptr);
|
|
|
|
|
|
|
|
|
2005-03-14 12:49:30 +01:00
|
|
|
/* Use the allocation hooks. */
|
|
|
|
#define malloc(x) Do not use malloc() directly.
|
|
|
|
#define realloc(x, y) Do not use realloc() directly.
|
|
|
|
#define free(x) Do not use free() directly.
|
2007-03-19 08:44:04 +01:00
|
|
|
/* !!! FIXME: add alloca check here. */
|
2002-07-28 23:03:27 +02:00
|
|
|
|
2012-03-23 05:52:32 +01:00
|
|
|
#ifndef PHYSFS_SUPPORTS_ZIP
|
|
|
|
#define PHYSFS_SUPPORTS_ZIP 1
|
|
|
|
#endif
|
|
|
|
#ifndef PHYSFS_SUPPORTS_7Z
|
|
|
|
#define PHYSFS_SUPPORTS_7Z 0
|
|
|
|
#endif
|
|
|
|
#ifndef PHYSFS_SUPPORTS_GRP
|
2017-07-09 00:25:20 +02:00
|
|
|
#define PHYSFS_SUPPORTS_GRP 1
|
2012-03-23 05:52:32 +01:00
|
|
|
#endif
|
|
|
|
#ifndef PHYSFS_SUPPORTS_HOG
|
2017-07-09 00:25:20 +02:00
|
|
|
#define PHYSFS_SUPPORTS_HOG 1
|
2012-03-23 05:52:32 +01:00
|
|
|
#endif
|
|
|
|
#ifndef PHYSFS_SUPPORTS_MVL
|
2017-07-09 00:25:20 +02:00
|
|
|
#define PHYSFS_SUPPORTS_MVL 1
|
2012-03-23 05:52:32 +01:00
|
|
|
#endif
|
|
|
|
#ifndef PHYSFS_SUPPORTS_WAD
|
2017-07-09 00:25:20 +02:00
|
|
|
#define PHYSFS_SUPPORTS_WAD 1
|
2012-03-23 05:52:32 +01:00
|
|
|
#endif
|
2012-11-12 22:40:29 +01:00
|
|
|
#ifndef PHYSFS_SUPPORTS_SLB
|
2017-07-09 00:25:20 +02:00
|
|
|
#define PHYSFS_SUPPORTS_SLB 1
|
2012-11-12 22:40:29 +01:00
|
|
|
#endif
|
2012-03-23 05:52:32 +01:00
|
|
|
#ifndef PHYSFS_SUPPORTS_ISO9660
|
2017-07-09 00:25:20 +02:00
|
|
|
#define PHYSFS_SUPPORTS_ISO9660 1
|
2012-03-23 05:52:32 +01:00
|
|
|
#endif
|
2017-06-20 19:22:41 +02:00
|
|
|
#ifndef PHYSFS_SUPPORTS_VDF
|
2017-07-09 00:25:20 +02:00
|
|
|
#define PHYSFS_SUPPORTS_VDF 1
|
2017-06-20 19:22:41 +02:00
|
|
|
#endif
|
2012-03-23 05:52:32 +01:00
|
|
|
|
2012-03-25 23:18:24 +02:00
|
|
|
/* The latest supported PHYSFS_Io::version value. */
|
|
|
|
#define CURRENT_PHYSFS_IO_API_VERSION 0
|
2001-07-08 05:25:12 +02:00
|
|
|
|
2012-11-28 07:36:13 +01:00
|
|
|
/* The latest supported PHYSFS_Archiver::version value. */
|
|
|
|
#define CURRENT_PHYSFS_ARCHIVER_API_VERSION 0
|
2002-12-01 12:21:27 +01:00
|
|
|
|
2016-02-25 08:51:28 +01:00
|
|
|
/* This byteorder stuff was lifted from SDL. https://www.libsdl.org/ */
|
2004-04-09 08:33:49 +02:00
|
|
|
#define PHYSFS_LIL_ENDIAN 1234
|
|
|
|
#define PHYSFS_BIG_ENDIAN 4321
|
|
|
|
|
2016-02-25 08:55:11 +01:00
|
|
|
#ifdef __linux__
|
|
|
|
#include <endian.h>
|
|
|
|
#define PHYSFS_BYTEORDER __BYTE_ORDER
|
|
|
|
#else /* __linux__ */
|
|
|
|
#if defined(__hppa__) || \
|
|
|
|
defined(__m68k__) || defined(mc68000) || defined(_M_M68K) || \
|
|
|
|
(defined(__MIPS__) && defined(__MISPEB__)) || \
|
|
|
|
defined(__ppc__) || defined(__POWERPC__) || defined(_M_PPC) || \
|
|
|
|
defined(__sparc__)
|
|
|
|
#define PHYSFS_BYTEORDER PHYSFS_BIG_ENDIAN
|
2004-04-09 08:33:49 +02:00
|
|
|
#else
|
2016-02-25 08:55:11 +01:00
|
|
|
#define PHYSFS_BYTEORDER PHYSFS_LIL_ENDIAN
|
2004-04-09 08:33:49 +02:00
|
|
|
#endif
|
2016-02-25 08:55:11 +01:00
|
|
|
#endif /* __linux__ */
|
2004-04-09 08:33:49 +02:00
|
|
|
|
|
|
|
|
2002-08-20 03:34:27 +02:00
|
|
|
/*
|
|
|
|
* When sorting the entries in an archive, we use a modified QuickSort.
|
|
|
|
* When there are less then PHYSFS_QUICKSORT_THRESHOLD entries left to sort,
|
|
|
|
* we switch over to a BubbleSort for the remainder. Tweak to taste.
|
|
|
|
*
|
|
|
|
* You can override this setting by defining PHYSFS_QUICKSORT_THRESHOLD
|
|
|
|
* before #including "physfs_internal.h".
|
|
|
|
*/
|
|
|
|
#ifndef PHYSFS_QUICKSORT_THRESHOLD
|
|
|
|
#define PHYSFS_QUICKSORT_THRESHOLD 4
|
|
|
|
#endif
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Sort an array (or whatever) of (max) elements. This uses a mixture of
|
|
|
|
* a QuickSort and BubbleSort internally.
|
|
|
|
* (cmpfn) is used to determine ordering, and (swapfn) does the actual
|
|
|
|
* swapping of elements in the list.
|
|
|
|
*/
|
2012-06-01 11:44:50 +02:00
|
|
|
void __PHYSFS_sort(void *entries, size_t max,
|
|
|
|
int (*cmpfn)(void *, size_t, size_t),
|
|
|
|
void (*swapfn)(void *, size_t, size_t));
|
2002-08-20 03:34:27 +02:00
|
|
|
|
2001-08-23 17:23:21 +02:00
|
|
|
/* These get used all over for lessening code clutter. */
|
2017-07-06 17:51:41 +02:00
|
|
|
/* "ERRPASS" means "something else just set the error state for us" and is
|
|
|
|
just to make it clear where the responsibility for the error state lays. */
|
|
|
|
#define BAIL(e, r) do { if (e) PHYSFS_setErrorCode(e); return r; } while (0)
|
|
|
|
#define BAIL_ERRPASS(r) do { return r; } while (0)
|
|
|
|
#define BAIL_IF(c, e, r) do { if (c) { if (e) PHYSFS_setErrorCode(e); return r; } } while (0)
|
|
|
|
#define BAIL_IF_ERRPASS(c, r) do { if (c) { return r; } } while (0)
|
|
|
|
#define BAIL_MUTEX(e, m, r) do { if (e) PHYSFS_setErrorCode(e); __PHYSFS_platformReleaseMutex(m); return r; } while (0)
|
|
|
|
#define BAIL_MUTEX_ERRPASS(m, r) do { __PHYSFS_platformReleaseMutex(m); return r; } while (0)
|
|
|
|
#define BAIL_IF_MUTEX(c, e, m, r) do { if (c) { if (e) PHYSFS_setErrorCode(e); __PHYSFS_platformReleaseMutex(m); return r; } } while (0)
|
|
|
|
#define BAIL_IF_MUTEX_ERRPASS(c, m, r) do { if (c) { __PHYSFS_platformReleaseMutex(m); return r; } } while (0)
|
|
|
|
#define GOTO(e, g) do { if (e) PHYSFS_setErrorCode(e); goto g; } while (0)
|
|
|
|
#define GOTO_ERRPASS(g) do { goto g; } while (0)
|
|
|
|
#define GOTO_IF(c, e, g) do { if (c) { if (e) PHYSFS_setErrorCode(e); goto g; } } while (0)
|
|
|
|
#define GOTO_IF_ERRPASS(c, g) do { if (c) { goto g; } } while (0)
|
|
|
|
#define GOTO_MUTEX(e, m, g) do { if (e) PHYSFS_setErrorCode(e); __PHYSFS_platformReleaseMutex(m); goto g; } while (0)
|
|
|
|
#define GOTO_MUTEX_ERRPASS(m, g) do { __PHYSFS_platformReleaseMutex(m); goto g; } while (0)
|
|
|
|
#define GOTO_IF_MUTEX(c, e, m, g) do { if (c) { if (e) PHYSFS_setErrorCode(e); __PHYSFS_platformReleaseMutex(m); goto g; } } while (0)
|
|
|
|
#define GOTO_IF_MUTEX_ERRPASS(c, m, g) do { if (c) { __PHYSFS_platformReleaseMutex(m); goto g; } } while (0)
|
2001-07-06 04:32:29 +02:00
|
|
|
|
2007-03-15 09:16:23 +01:00
|
|
|
#define __PHYSFS_ARRAYLEN(x) ( (sizeof (x)) / (sizeof (x[0])) )
|
|
|
|
|
2010-08-21 08:47:58 +02:00
|
|
|
#ifdef PHYSFS_NO_64BIT_SUPPORT
|
|
|
|
#define __PHYSFS_SI64(x) ((PHYSFS_sint64) (x))
|
|
|
|
#define __PHYSFS_UI64(x) ((PHYSFS_uint64) (x))
|
|
|
|
#elif (defined __GNUC__)
|
2007-03-21 21:14:46 +01:00
|
|
|
#define __PHYSFS_SI64(x) x##LL
|
|
|
|
#define __PHYSFS_UI64(x) x##ULL
|
2007-03-21 21:19:20 +01:00
|
|
|
#elif (defined _MSC_VER)
|
|
|
|
#define __PHYSFS_SI64(x) x##i64
|
|
|
|
#define __PHYSFS_UI64(x) x##ui64
|
2006-01-01 13:19:44 +01:00
|
|
|
#else
|
2010-08-21 08:47:58 +02:00
|
|
|
#define __PHYSFS_SI64(x) ((PHYSFS_sint64) (x))
|
|
|
|
#define __PHYSFS_UI64(x) ((PHYSFS_uint64) (x))
|
2006-01-01 13:19:44 +01:00
|
|
|
#endif
|
|
|
|
|
2008-03-12 22:22:22 +01:00
|
|
|
|
2006-01-01 13:19:44 +01:00
|
|
|
/*
|
|
|
|
* Check if a ui64 will fit in the platform's address space.
|
|
|
|
* The initial sizeof check will optimize this macro out entirely on
|
|
|
|
* 64-bit (and larger?!) platforms, and the other condition will
|
|
|
|
* return zero or non-zero if the variable will fit in the platform's
|
|
|
|
* size_t, suitable to pass to malloc. This is kinda messy, but effective.
|
|
|
|
*/
|
|
|
|
#define __PHYSFS_ui64FitsAddressSpace(s) ( \
|
2010-08-24 16:03:25 +02:00
|
|
|
(sizeof (PHYSFS_uint64) <= sizeof (size_t)) || \
|
|
|
|
((s) < (__PHYSFS_UI64(0xFFFFFFFFFFFFFFFF) >> (64-(sizeof(size_t)*8)))) \
|
2006-01-01 13:19:44 +01:00
|
|
|
)
|
2001-07-06 04:32:29 +02:00
|
|
|
|
2008-03-12 22:22:22 +01:00
|
|
|
|
2007-03-15 09:16:23 +01:00
|
|
|
/*
|
|
|
|
* This is a strcasecmp() or stricmp() replacement that expects both strings
|
|
|
|
* to be in UTF-8 encoding. It will do "case folding" to decide if the
|
|
|
|
* Unicode codepoints in the strings match.
|
|
|
|
*
|
|
|
|
* It will report which string is "greater than" the other, but be aware that
|
|
|
|
* this doesn't necessarily mean anything: 'a' may be "less than" 'b', but
|
|
|
|
* a random Kanji codepoint has no meaningful alphabetically relationship to
|
|
|
|
* a Greek Lambda, but being able to assign a reliable "value" makes sorting
|
|
|
|
* algorithms possible, if not entirely sane. Most cases should treat the
|
|
|
|
* return value as "equal" or "not equal".
|
|
|
|
*/
|
2012-03-22 08:02:50 +01:00
|
|
|
int __PHYSFS_utf8stricmp(const char *s1, const char *s2);
|
2007-03-15 09:16:23 +01:00
|
|
|
|
|
|
|
/*
|
2012-03-22 08:02:50 +01:00
|
|
|
* This works like __PHYSFS_utf8stricmp(), but takes a character (NOT BYTE
|
2007-03-15 09:16:23 +01:00
|
|
|
* COUNT) argument, like strcasencmp().
|
|
|
|
*/
|
|
|
|
int __PHYSFS_utf8strnicmp(const char *s1, const char *s2, PHYSFS_uint32 l);
|
|
|
|
|
|
|
|
/*
|
|
|
|
* stricmp() that guarantees to only work with low ASCII. The C runtime
|
|
|
|
* stricmp() might try to apply a locale/codepage/etc, which we don't want.
|
|
|
|
*/
|
|
|
|
int __PHYSFS_stricmpASCII(const char *s1, const char *s2);
|
|
|
|
|
|
|
|
/*
|
|
|
|
* strnicmp() that guarantees to only work with low ASCII. The C runtime
|
|
|
|
* strnicmp() might try to apply a locale/codepage/etc, which we don't want.
|
|
|
|
*/
|
|
|
|
int __PHYSFS_strnicmpASCII(const char *s1, const char *s2, PHYSFS_uint32 l);
|
|
|
|
|
2016-02-25 06:40:17 +01:00
|
|
|
/*
|
|
|
|
* Like strdup(), but uses the current PhysicsFS allocator.
|
|
|
|
*/
|
|
|
|
char *__PHYSFS_strdup(const char *str);
|
|
|
|
|
2016-02-25 08:20:52 +01:00
|
|
|
/*
|
|
|
|
* Give a hash value for a C string (uses djb's xor hashing algorithm).
|
|
|
|
*/
|
|
|
|
PHYSFS_uint32 __PHYSFS_hashString(const char *str, size_t len);
|
|
|
|
|
2007-03-15 09:16:23 +01:00
|
|
|
|
2004-09-23 08:45:36 +02:00
|
|
|
/*
|
2005-03-14 12:49:30 +01:00
|
|
|
* The current allocator. Not valid before PHYSFS_init is called!
|
2004-09-23 08:45:36 +02:00
|
|
|
*/
|
2005-03-14 12:49:30 +01:00
|
|
|
extern PHYSFS_Allocator __PHYSFS_AllocatorHooks;
|
2001-07-06 04:32:29 +02:00
|
|
|
|
2005-03-14 12:49:30 +01:00
|
|
|
/* convenience macro to make this less cumbersome internally... */
|
|
|
|
#define allocator __PHYSFS_AllocatorHooks
|
2001-07-06 04:32:29 +02:00
|
|
|
|
2010-08-30 09:01:57 +02:00
|
|
|
/*
|
|
|
|
* Create a PHYSFS_Io for a file in the physical filesystem.
|
|
|
|
* This path is in platform-dependent notation. (mode) must be 'r', 'w', or
|
|
|
|
* 'a' for Read, Write, or Append.
|
|
|
|
*/
|
|
|
|
PHYSFS_Io *__PHYSFS_createNativeIo(const char *path, const int mode);
|
|
|
|
|
2010-08-30 08:39:11 +02:00
|
|
|
/*
|
|
|
|
* Create a PHYSFS_Io for a buffer of memory (READ-ONLY). If you already
|
|
|
|
* have one of these, just use its duplicate() method, and it'll increment
|
|
|
|
* its refcount without allocating a copy of the buffer.
|
|
|
|
*/
|
|
|
|
PHYSFS_Io *__PHYSFS_createMemoryIo(const void *buf, PHYSFS_uint64 len,
|
|
|
|
void (*destruct)(void *));
|
|
|
|
|
2010-08-30 09:01:57 +02:00
|
|
|
|
2012-03-09 10:50:27 +01:00
|
|
|
/*
|
|
|
|
* Read (len) bytes from (io) into (buf). Returns non-zero on success,
|
|
|
|
* zero on i/o error. Literally: "return (io->read(io, buf, len) == len);"
|
|
|
|
*/
|
|
|
|
int __PHYSFS_readAll(PHYSFS_Io *io, void *buf, const PHYSFS_uint64 len);
|
2010-09-06 08:50:29 +02:00
|
|
|
|
|
|
|
|
|
|
|
/* These are shared between some archivers. */
|
|
|
|
|
|
|
|
typedef struct
|
|
|
|
{
|
2012-11-12 22:40:29 +01:00
|
|
|
char name[64];
|
2010-09-06 08:50:29 +02:00
|
|
|
PHYSFS_uint32 startPos;
|
|
|
|
PHYSFS_uint32 size;
|
|
|
|
} UNPKentry;
|
|
|
|
|
2012-11-28 07:36:13 +01:00
|
|
|
void UNPK_closeArchive(void *opaque);
|
|
|
|
void *UNPK_openArchive(PHYSFS_Io *io,UNPKentry *e,const PHYSFS_uint32 n);
|
|
|
|
void UNPK_enumerateFiles(void *opaque, const char *dname,
|
2012-11-29 17:47:16 +01:00
|
|
|
PHYSFS_EnumFilesCallback cb,
|
2010-09-06 08:50:29 +02:00
|
|
|
const char *origdir, void *callbackdata);
|
2012-11-30 19:00:08 +01:00
|
|
|
PHYSFS_Io *UNPK_openRead(void *opaque, const char *name);
|
2012-11-28 07:36:13 +01:00
|
|
|
PHYSFS_Io *UNPK_openWrite(void *opaque, const char *name);
|
|
|
|
PHYSFS_Io *UNPK_openAppend(void *opaque, const char *name);
|
|
|
|
int UNPK_remove(void *opaque, const char *name);
|
|
|
|
int UNPK_mkdir(void *opaque, const char *name);
|
2012-11-30 18:43:56 +01:00
|
|
|
int UNPK_stat(void *opaque, const char *fn, PHYSFS_Stat *st);
|
2010-09-06 08:50:29 +02:00
|
|
|
|
|
|
|
|
2001-07-06 04:32:29 +02:00
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
/*------------ ----------------*/
|
|
|
|
/*------------ You MUST implement the following functions ----------------*/
|
|
|
|
/*------------ if porting to a new platform. ----------------*/
|
2001-07-15 11:27:41 +02:00
|
|
|
/*------------ (see platform/unix.c for an example) ----------------*/
|
2001-07-06 04:32:29 +02:00
|
|
|
/*------------ ----------------*/
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
|
|
|
|
|
|
|
|
/*
|
2012-03-15 06:54:57 +01:00
|
|
|
* The dir separator; '/' on unix, '\\' on win32, ":" on MacOS, etc...
|
|
|
|
* Obviously, this isn't a function. If you need more than one char for this,
|
|
|
|
* you'll need to pull some old pieces of PhysicsFS out of revision control.
|
2001-07-06 04:32:29 +02:00
|
|
|
*/
|
2017-07-06 03:29:37 +02:00
|
|
|
#if PHYSFS_PLATFORM_WINDOWS || PHYSFS_PLATFORM_OS2
|
2012-03-15 06:54:57 +01:00
|
|
|
#define __PHYSFS_platformDirSeparator '\\'
|
|
|
|
#else
|
|
|
|
#define __PHYSFS_platformDirSeparator '/'
|
|
|
|
#endif
|
2002-03-24 07:36:48 +01:00
|
|
|
|
|
|
|
/*
|
|
|
|
* Initialize the platform. This is called when PHYSFS_init() is called from
|
2012-03-18 17:23:30 +01:00
|
|
|
* the application.
|
2002-03-24 07:36:48 +01:00
|
|
|
*
|
|
|
|
* Return zero if there was a catastrophic failure (which prevents you from
|
|
|
|
* functioning at all), and non-zero otherwise.
|
|
|
|
*/
|
|
|
|
int __PHYSFS_platformInit(void);
|
|
|
|
|
2002-05-25 11:41:14 +02:00
|
|
|
|
2002-03-24 07:36:48 +01:00
|
|
|
/*
|
|
|
|
* Deinitialize the platform. This is called when PHYSFS_deinit() is called
|
|
|
|
* from the application. You can use this to clean up anything you've
|
|
|
|
* allocated in your platform driver.
|
|
|
|
*
|
|
|
|
* Return zero if there was a catastrophic failure (which prevents you from
|
|
|
|
* functioning at all), and non-zero otherwise.
|
|
|
|
*/
|
|
|
|
int __PHYSFS_platformDeinit(void);
|
|
|
|
|
2002-05-25 11:41:14 +02:00
|
|
|
|
2002-03-24 20:47:33 +01:00
|
|
|
/*
|
|
|
|
* Open a file for reading. (filename) is in platform-dependent notation. The
|
|
|
|
* file pointer should be positioned on the first byte of the file.
|
|
|
|
*
|
|
|
|
* The return value will be some platform-specific datatype that is opaque to
|
|
|
|
* the caller; it could be a (FILE *) under Unix, or a (HANDLE *) under win32.
|
|
|
|
*
|
|
|
|
* The same file can be opened for read multiple times, and each should have
|
|
|
|
* a unique file handle; this is frequently employed to prevent race
|
|
|
|
* conditions in the archivers.
|
|
|
|
*
|
2012-11-30 18:49:25 +01:00
|
|
|
* Call PHYSFS_setErrorCode() and return (NULL) if the file can't be opened.
|
2002-03-24 20:47:33 +01:00
|
|
|
*/
|
|
|
|
void *__PHYSFS_platformOpenRead(const char *filename);
|
|
|
|
|
2002-05-25 11:41:14 +02:00
|
|
|
|
2002-03-24 20:47:33 +01:00
|
|
|
/*
|
|
|
|
* Open a file for writing. (filename) is in platform-dependent notation. If
|
|
|
|
* the file exists, it should be truncated to zero bytes, and if it doesn't
|
|
|
|
* exist, it should be created as a zero-byte file. The file pointer should
|
|
|
|
* be positioned on the first byte of the file.
|
|
|
|
*
|
|
|
|
* The return value will be some platform-specific datatype that is opaque to
|
|
|
|
* the caller; it could be a (FILE *) under Unix, or a (HANDLE *) under win32,
|
|
|
|
* etc.
|
|
|
|
*
|
|
|
|
* Opening a file for write multiple times has undefined results.
|
|
|
|
*
|
2012-11-30 18:49:25 +01:00
|
|
|
* Call PHYSFS_setErrorCode() and return (NULL) if the file can't be opened.
|
2002-03-24 20:47:33 +01:00
|
|
|
*/
|
|
|
|
void *__PHYSFS_platformOpenWrite(const char *filename);
|
|
|
|
|
2002-05-25 11:41:14 +02:00
|
|
|
|
2002-03-24 20:47:33 +01:00
|
|
|
/*
|
|
|
|
* Open a file for appending. (filename) is in platform-dependent notation. If
|
|
|
|
* the file exists, the file pointer should be place just past the end of the
|
|
|
|
* file, so that the first write will be one byte after the current end of
|
|
|
|
* the file. If the file doesn't exist, it should be created as a zero-byte
|
|
|
|
* file. The file pointer should be positioned on the first byte of the file.
|
|
|
|
*
|
|
|
|
* The return value will be some platform-specific datatype that is opaque to
|
|
|
|
* the caller; it could be a (FILE *) under Unix, or a (HANDLE *) under win32,
|
|
|
|
* etc.
|
|
|
|
*
|
|
|
|
* Opening a file for append multiple times has undefined results.
|
|
|
|
*
|
2012-11-30 18:49:25 +01:00
|
|
|
* Call PHYSFS_setErrorCode() and return (NULL) if the file can't be opened.
|
2002-03-24 20:47:33 +01:00
|
|
|
*/
|
|
|
|
void *__PHYSFS_platformOpenAppend(const char *filename);
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Read more data from a platform-specific file handle. (opaque) should be
|
2010-08-21 08:47:58 +02:00
|
|
|
* cast to whatever data type your platform uses. Read a maximum of (len)
|
|
|
|
* 8-bit bytes to the area pointed to by (buf). If there isn't enough data
|
|
|
|
* available, return the number of bytes read, and position the file pointer
|
|
|
|
* immediately after those bytes.
|
|
|
|
* On success, return (len) and position the file pointer immediately past
|
|
|
|
* the end of the last read byte. Return (-1) if there is a catastrophic
|
2012-11-30 18:49:25 +01:00
|
|
|
* error, and call PHYSFS_setErrorCode() to describe the problem; the file
|
2010-08-21 08:47:58 +02:00
|
|
|
* pointer should not move in such a case. A partial read is success; only
|
|
|
|
* return (-1) on total failure; presumably, the next read call after a
|
|
|
|
* partial read will fail as such.
|
2002-03-24 20:47:33 +01:00
|
|
|
*/
|
2010-08-21 08:47:58 +02:00
|
|
|
PHYSFS_sint64 __PHYSFS_platformRead(void *opaque, void *buf, PHYSFS_uint64 len);
|
2002-03-24 20:47:33 +01:00
|
|
|
|
|
|
|
/*
|
|
|
|
* Write more data to a platform-specific file handle. (opaque) should be
|
2010-08-21 08:47:58 +02:00
|
|
|
* cast to whatever data type your platform uses. Write a maximum of (len)
|
|
|
|
* 8-bit bytes from the area pointed to by (buffer). If there is a problem,
|
|
|
|
* return the number of bytes written, and position the file pointer
|
|
|
|
* immediately after those bytes. Return (-1) if there is a catastrophic
|
2012-11-30 18:49:25 +01:00
|
|
|
* error, and call PHYSFS_setErrorCode() to describe the problem; the file
|
2010-08-21 08:47:58 +02:00
|
|
|
* pointer should not move in such a case. A partial write is success; only
|
|
|
|
* return (-1) on total failure; presumably, the next write call after a
|
|
|
|
* partial write will fail as such.
|
2002-03-24 20:47:33 +01:00
|
|
|
*/
|
2002-03-25 05:05:52 +01:00
|
|
|
PHYSFS_sint64 __PHYSFS_platformWrite(void *opaque, const void *buffer,
|
2010-08-21 08:47:58 +02:00
|
|
|
PHYSFS_uint64 len);
|
2002-03-24 20:47:33 +01:00
|
|
|
|
|
|
|
/*
|
|
|
|
* Set the file pointer to a new position. (opaque) should be cast to
|
|
|
|
* whatever data type your platform uses. (pos) specifies the number
|
|
|
|
* of 8-bit bytes to seek to from the start of the file. Seeking past the
|
|
|
|
* end of the file is an error condition, and you should check for it.
|
|
|
|
*
|
|
|
|
* Not all file types can seek; this is to be expected by the caller.
|
|
|
|
*
|
2012-11-30 18:49:25 +01:00
|
|
|
* On error, call PHYSFS_setErrorCode() and return zero. On success, return
|
2002-03-24 20:47:33 +01:00
|
|
|
* a non-zero value.
|
|
|
|
*/
|
|
|
|
int __PHYSFS_platformSeek(void *opaque, PHYSFS_uint64 pos);
|
|
|
|
|
2002-05-25 11:41:14 +02:00
|
|
|
|
2002-03-24 20:47:33 +01:00
|
|
|
/*
|
|
|
|
* Get the file pointer's position, in an 8-bit byte offset from the start of
|
|
|
|
* the file. (opaque) should be cast to whatever data type your platform
|
|
|
|
* uses.
|
|
|
|
*
|
|
|
|
* Not all file types can "tell"; this is to be expected by the caller.
|
|
|
|
*
|
2012-11-30 18:49:25 +01:00
|
|
|
* On error, call PHYSFS_setErrorCode() and return -1. On success, return >= 0.
|
2002-03-24 20:47:33 +01:00
|
|
|
*/
|
|
|
|
PHYSFS_sint64 __PHYSFS_platformTell(void *opaque);
|
|
|
|
|
2002-05-25 11:41:14 +02:00
|
|
|
|
2002-03-24 20:47:33 +01:00
|
|
|
/*
|
|
|
|
* Determine the current size of a file, in 8-bit bytes, from an open file.
|
|
|
|
*
|
|
|
|
* The caller expects that this information may not be available for all
|
|
|
|
* file types on all platforms.
|
|
|
|
*
|
2012-11-30 18:49:25 +01:00
|
|
|
* Return -1 if you can't do it, and call PHYSFS_setErrorCode(). Otherwise,
|
2002-03-24 20:47:33 +01:00
|
|
|
* return the file length in 8-bit bytes.
|
|
|
|
*/
|
|
|
|
PHYSFS_sint64 __PHYSFS_platformFileLength(void *handle);
|
|
|
|
|
2010-02-15 20:02:36 +01:00
|
|
|
|
|
|
|
/*
|
|
|
|
* !!! FIXME: comment me.
|
|
|
|
*/
|
2012-11-30 18:43:56 +01:00
|
|
|
int __PHYSFS_platformStat(const char *fn, PHYSFS_Stat *stat);
|
2010-02-15 20:02:36 +01:00
|
|
|
|
2002-03-24 20:47:33 +01:00
|
|
|
/*
|
|
|
|
* Flush any pending writes to disk. (opaque) should be cast to whatever data
|
|
|
|
* type your platform uses. Be sure to check for errors; the caller expects
|
|
|
|
* that this function can fail if there was a flushing error, etc.
|
|
|
|
*
|
|
|
|
* Return zero on failure, non-zero on success.
|
|
|
|
*/
|
|
|
|
int __PHYSFS_platformFlush(void *opaque);
|
|
|
|
|
|
|
|
/*
|
2010-08-30 09:01:57 +02:00
|
|
|
* Close file and deallocate resources. (opaque) should be cast to whatever
|
|
|
|
* data type your platform uses. This should close the file in any scenario:
|
|
|
|
* flushing is a separate function call, and this function should never fail.
|
2002-03-24 20:47:33 +01:00
|
|
|
*
|
2010-08-30 09:01:57 +02:00
|
|
|
* You should clean up all resources associated with (opaque); the pointer
|
|
|
|
* will be considered invalid after this call.
|
2002-03-24 20:47:33 +01:00
|
|
|
*/
|
2010-08-30 09:01:57 +02:00
|
|
|
void __PHYSFS_platformClose(void *opaque);
|
2002-03-24 20:47:33 +01:00
|
|
|
|
2001-07-06 04:32:29 +02:00
|
|
|
/*
|
2004-09-29 08:09:29 +02:00
|
|
|
* Platform implementation of PHYSFS_getCdRomDirsCallback()...
|
|
|
|
* CD directories are discovered and reported to the callback one at a time.
|
|
|
|
* Pointers passed to the callback are assumed to be invalid to the
|
|
|
|
* application after the callback returns, so you can free them or whatever.
|
|
|
|
* Callback does not assume results will be sorted in any meaningful way.
|
2001-07-06 04:32:29 +02:00
|
|
|
*/
|
2004-09-29 08:09:29 +02:00
|
|
|
void __PHYSFS_platformDetectAvailableCDs(PHYSFS_StringCallback cb, void *data);
|
2001-07-06 04:32:29 +02:00
|
|
|
|
|
|
|
/*
|
|
|
|
* Calculate the base dir, if your platform needs special consideration.
|
|
|
|
* Just return NULL if the standard routines will suffice. (see
|
|
|
|
* calculateBaseDir() in physfs.c ...)
|
2012-03-23 09:14:01 +01:00
|
|
|
* Your string must end with a dir separator if you don't return NULL.
|
2012-03-11 10:05:02 +01:00
|
|
|
* Caller will allocator.Free() the retval if it's not NULL.
|
2001-07-06 04:32:29 +02:00
|
|
|
*/
|
2001-07-08 15:57:28 +02:00
|
|
|
char *__PHYSFS_platformCalcBaseDir(const char *argv0);
|
2001-07-06 04:32:29 +02:00
|
|
|
|
2012-03-22 05:21:28 +01:00
|
|
|
/*
|
2001-07-06 04:32:29 +02:00
|
|
|
* Get the platform-specific user dir.
|
2012-03-24 05:26:04 +01:00
|
|
|
* As of PhysicsFS 2.1, returning NULL means fatal error.
|
|
|
|
* Your string must end with a dir separator if you don't return NULL.
|
|
|
|
* Caller will allocator.Free() the retval if it's not NULL.
|
2001-07-06 04:32:29 +02:00
|
|
|
*/
|
2012-03-22 05:21:28 +01:00
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char *__PHYSFS_platformCalcUserDir(void);
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2001-07-06 04:32:29 +02:00
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2012-03-22 04:30:50 +01:00
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/* This is the cached version from PHYSFS_init(). This is a fast call. */
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const char *__PHYSFS_getUserDir(void); /* not deprecated internal version. */
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2012-03-24 05:26:04 +01:00
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2012-03-22 04:30:50 +01:00
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/*
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2012-03-24 05:26:04 +01:00
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* Get the platform-specific pref dir.
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* Returning NULL means fatal error.
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* Your string must end with a dir separator if you don't return NULL.
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* Caller will allocator.Free() the retval if it's not NULL.
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* Caller will make missing directories if necessary; this just reports
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* the final path.
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2012-03-22 04:30:50 +01:00
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*/
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char *__PHYSFS_platformCalcPrefDir(const char *org, const char *app);
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2001-07-06 04:32:29 +02:00
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/*
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2009-09-06 07:05:27 +02:00
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* Return a pointer that uniquely identifies the current thread.
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* On a platform without threading, (0x1) will suffice. These numbers are
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2001-07-06 04:32:29 +02:00
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* arbitrary; the only requirement is that no two threads have the same
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2009-09-06 07:05:27 +02:00
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* pointer.
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2001-07-06 04:32:29 +02:00
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*/
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2009-09-06 07:05:27 +02:00
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void *__PHYSFS_platformGetThreadID(void);
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2001-07-06 04:32:29 +02:00
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2002-05-25 11:41:14 +02:00
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2001-07-08 05:25:12 +02:00
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/*
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* Enumerate a directory of files. This follows the rules for the
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2016-02-25 07:16:42 +01:00
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* PHYSFS_Archiver::enumerateFiles() method, except that the
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2001-07-08 05:25:12 +02:00
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* (dirName) that is passed to this function is converted to
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2004-09-26 15:00:59 +02:00
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* platform-DEPENDENT notation by the caller. The PHYSFS_Archiver version
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2001-07-16 19:36:28 +02:00
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* uses platform-independent notation. Note that ".", "..", and other
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2012-11-29 17:48:48 +01:00
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* meta-entries should always be ignored.
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2001-07-08 05:25:12 +02:00
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*/
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2004-09-29 08:09:29 +02:00
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void __PHYSFS_platformEnumerateFiles(const char *dirname,
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2005-09-18 23:44:42 +02:00
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PHYSFS_EnumFilesCallback callback,
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const char *origdir,
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2004-09-29 08:09:29 +02:00
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void *callbackdata);
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2001-07-08 05:25:12 +02:00
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2001-08-23 17:23:21 +02:00
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/*
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* Make a directory in the actual filesystem. (path) is specified in
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* platform-dependent notation. On error, return zero and set the error
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* message. Return non-zero on success.
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*/
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int __PHYSFS_platformMkDir(const char *path);
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2002-05-25 11:41:14 +02:00
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2002-03-25 06:02:12 +01:00
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/*
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* Remove a file or directory entry in the actual filesystem. (path) is
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* specified in platform-dependent notation. Note that this deletes files
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* _and_ directories, so you might need to do some determination.
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* Non-empty directories should report an error and not delete themselves
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* or their contents.
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*
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* Deleting a symlink should remove the link, not what it points to.
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*
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* On error, return zero and set the error message. Return non-zero on success.
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*/
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int __PHYSFS_platformDelete(const char *path);
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2002-03-30 17:44:09 +01:00
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/*
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* Create a platform-specific mutex. This can be whatever datatype your
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* platform uses for mutexes, but it is cast to a (void *) for abstractness.
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*
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* Return (NULL) if you couldn't create one. Systems without threads can
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* return any arbitrary non-NULL value.
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*/
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void *__PHYSFS_platformCreateMutex(void);
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/*
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* Destroy a platform-specific mutex, and clean up any resources associated
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* with it. (mutex) is a value previously returned by
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* __PHYSFS_platformCreateMutex(). This can be a no-op on single-threaded
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* platforms.
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*/
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void __PHYSFS_platformDestroyMutex(void *mutex);
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/*
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* Grab possession of a platform-specific mutex. Mutexes should be recursive;
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* that is, the same thread should be able to call this function multiple
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* times in a row without causing a deadlock. This function should block
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* until a thread can gain possession of the mutex.
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*
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* Return non-zero if the mutex was grabbed, zero if there was an
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* unrecoverable problem grabbing it (this should not be a matter of
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* timing out! We're talking major system errors; block until the mutex
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* is available otherwise.)
|
2002-04-02 15:41:11 +02:00
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*
|
2012-11-30 18:49:25 +01:00
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|
* _DO NOT_ call PHYSFS_setErrorCode() in here! Since setErrorCode calls this
|
2002-04-02 15:41:11 +02:00
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* function, you'll cause an infinite recursion. This means you can't
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* use the BAIL_*MACRO* macros, either.
|
2002-03-30 17:44:09 +01:00
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*/
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int __PHYSFS_platformGrabMutex(void *mutex);
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/*
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* Relinquish possession of the mutex when this method has been called
|
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* once for each time that platformGrabMutex was called. Once possession has
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* been released, the next thread in line to grab the mutex (if any) may
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|
* proceed.
|
2002-04-02 15:41:11 +02:00
|
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|
*
|
2012-11-30 18:49:25 +01:00
|
|
|
* _DO NOT_ call PHYSFS_setErrorCode() in here! Since setErrorCode calls this
|
2002-04-02 15:41:11 +02:00
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|
* function, you'll cause an infinite recursion. This means you can't
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|
* use the BAIL_*MACRO* macros, either.
|
2002-03-30 17:44:09 +01:00
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|
*/
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void __PHYSFS_platformReleaseMutex(void *mutex);
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|
2004-09-23 08:45:36 +02:00
|
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|
/*
|
2007-03-20 19:33:56 +01:00
|
|
|
* Called at the start of PHYSFS_init() to prepare the allocator, if the user
|
2004-09-26 02:25:04 +02:00
|
|
|
* hasn't selected their own allocator via PHYSFS_setAllocator().
|
2007-03-20 19:33:56 +01:00
|
|
|
* If the platform has a custom allocator, it should fill in the fields of
|
|
|
|
* (a) with the proper function pointers and return non-zero.
|
|
|
|
* If the platform just wants to use malloc()/free()/etc, return zero
|
|
|
|
* immediately and the higher level will handle it. The Init and Deinit
|
|
|
|
* fields of (a) are optional...set them to NULL if you don't need them.
|
|
|
|
* Everything else must be implemented. All rules follow those for
|
|
|
|
* PHYSFS_setAllocator(). If Init isn't NULL, it will be called shortly
|
|
|
|
* after this function returns non-zero.
|
2004-09-23 08:45:36 +02:00
|
|
|
*/
|
2007-03-20 19:33:56 +01:00
|
|
|
int __PHYSFS_platformSetDefaultAllocator(PHYSFS_Allocator *a);
|
2004-09-23 08:45:36 +02:00
|
|
|
|
2001-07-06 04:32:29 +02:00
|
|
|
#ifdef __cplusplus
|
2002-03-24 20:47:33 +01:00
|
|
|
}
|
2001-07-06 04:32:29 +02:00
|
|
|
#endif
|
|
|
|
|
|
|
|
#endif
|
|
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|
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|
|
/* end of physfs_internal.h ... */
|
|
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|
|