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sqPlatformSpecific.h
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sqPlatformSpecific.h
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/* sqPlatformSpecific.h -- platform-specific modifications to sq.h
*
* Copyright (C) 1996-2005 by Ian Piumarta and other authors/contributors
* listed elsewhere in this file.
* All rights reserved.
*
* This file is part of Unix Squeak.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
* Author: ian.piumarta@squeakland.org
*
*/
#undef sqAllocateMemory
#undef sqGrowMemoryBy
#undef sqShrinkMemoryBy
#undef sqMemoryExtraBytesLeft
#include "sqMemoryAccess.h"
extern usqInt sqAllocateMemory(usqInt minHeapSize, usqInt desiredHeapSize);
#define allocateMemoryMinimumImageFileHeaderSize(heapSize, minimumMemory, fileStream, headerSize) \
sqAllocateMemory(minimumMemory, heapSize)
extern sqInt sqGrowMemoryBy(sqInt oldLimit, sqInt delta);
extern sqInt sqShrinkMemoryBy(sqInt oldLimit, sqInt delta);
extern sqInt sqMemoryExtraBytesLeft(sqInt includingSwap);
#if COGVM
extern void sqMakeMemoryExecutableFromTo(unsigned long, unsigned long);
extern void sqMakeMemoryNotExecutableFromTo(unsigned long, unsigned long);
extern int isCFramePointerInUse(void);
extern int osCogStackPageHeadroom(void);
extern void reportMinimumUnusedHeadroom(void);
#endif
/* warnPrintf is provided (and needed) on the win32 platform.
* But it may be mentioned elsewhere, so provide a suitable def.
*/
#define warnPrintf printf
/* Thread support for thread-safe signalSemaphoreWithIndex and/or the COGMTVM */
#if STACKVM || NewspeakVM
# define sqLowLevelYield() sched_yield()
/* linux's sched.h defines clone that conflicts with the interpreter's */
# define clone NameSpacePollutant
# include <pthread.h>
# undef clone
# define sqOSThread pthread_t
/* these are used both in the STACKVM & the COGMTVM */
# define ioOSThreadsEqual(a,b) pthread_equal(a,b)
# define ioCurrentOSThread() pthread_self()
# if COGMTVM
/* Please read the comment for CogThreadManager in the VMMaker package for
* documentation of this API.
*/
typedef struct {
pthread_cond_t cond;
pthread_mutex_t mutex;
int count;
} sqOSSemaphore;
# define ioDestroyOSSemaphore(ptr) 0
# if !ForCOGMTVMImplementation /* this is a read-only export */
extern const pthread_key_t tltiIndex;
# endif
# define ioGetThreadLocalThreadIndex() ((long)pthread_getspecific(tltiIndex))
# define ioSetThreadLocalThreadIndex(v) (pthread_setspecific(tltiIndex,(void*)(v)))
# define ioOSThreadIsAlive(thread) (pthread_kill(thread,0) == 0)
# define ioTransferTimeslice() sched_yield()
# define ioMilliSleep(ms) usleep((ms) * 1000)
# endif /* COGMTVM */
#endif /* STACKVM || NewspeakVM */
#include <sys/types.h>
typedef off_t squeakFileOffsetType;
#undef sqFilenameFromString
#undef sqFilenameFromStringOpen
#define sqFilenameFromStringOpen sqFilenameFromString
extern void sqFilenameFromString(char *uxName, sqInt stNameIndex, int sqNameLength);
#undef dispatchFunctionPointer
#undef dispatchFunctionPointerOnin
/* we'd like to untypedef fptr too, but such is life */
#include <unistd.h> /* for declaration of ftruncate */
#undef sqFTruncate
/* sqFTruncate should return 0 on success, ftruncate does also */
#define sqFTruncate(f,o) ftruncate(fileno(f), o)
#define ftell ftello
#define fseek fseeko
#if defined(__GNUC__)
# if !defined(VM_LABEL)
# define VM_LABEL(foo) asm("\n.globl L" #foo "\nL" #foo ":")
# endif
#else
# if HAVE_ALLOCA_H
# include <alloca.h>
# else
# ifdef _AIX
# pragma alloca
# else
# ifndef alloca /* predefined by HP cc +Olibcalls */
char *alloca();
# endif
# endif
# endif
#endif
#if !defined(VM_LABEL) || COGVM
# undef VM_LABEL
# define VM_LABEL(foo) ((void)0)
#endif