comparison stitch/stitch.c @ 0:5242703e91d3 tip

Initial checkin for AIM92 aimR8.2 (last updated May 1997).

+/*
+    Copyright (c) Applied Psychology Unit, Medical Research Council. 1988, 1989
+    ===========================================================================
+
+    Permission to use, copy, modify, and distribute this software without fee 
+    is hereby granted for research purposes, provided that this copyright 
+    notice appears in all copies and in all supporting documentation, and that 
+    the software is not redistributed for any fee (except for a nominal shipping 
+    charge). Anyone wanting to incorporate all or part of this software in a
+    commercial product must obtain a license from the Medical Research Council.
+
+    The MRC makes no representations about the suitability of this 
+    software for any purpose.  It is provided "as is" without express or implied 
+    warranty.
+ 
+    THE MRC DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING 
+    ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL THE
+    A.P.U. BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY 
+    DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN 
+    AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 
+    OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+*/
+
+/*
+				==========
+				 stitch.c
+				==========
+
+
+    Copyright (c), 1989  John Holdsworth, Medical Research Council, Applied Psychology Unit.
+
+
+    Author  : John Holdsworth
+    Written : 22th March, 1989.
+
+    Edited  :
+
+
+    provides an unvarying interface for allocation and copying operations.
+
+*/
+
+#include <stdio.h>
+
+#include <string.h>
+#if defined( NeXT )
+#include <stdlib.h>
+#else
+#include <malloc.h>
+#endif
+
+#ifndef  _STITCH_H_
+#include "stitch.h"
+#endif
+
+#if defined( sun )
+extern bcopy(), bzero(), exit() ;
+#else
+#ifndef NeXT
+extern void bcopy(), bzero(), free(), exit() ;
+#endif
+#endif
+
+#ifndef  lint
+static char *stitch_sccs_id = "@(#)stitch.c	1.19   J. Holdsworth (MRC-APU)  6/6/91" ;
+#endif
+
+#ifndef WRAPPING
+#define WRAPPING 0
+#endif
+
+#if     WRAPPING
+
+#include "wrap.h"
+
+Pointer wrap_malloc( size, where )
+unsigned size ;
+char where[] ;
+{
+    return ( wrap( malloc( WRAPPED_SIZE( size ) ), size, where ) ) ;
+}
+
+Pointer wrap_realloc( old, size, where )
+char *old ;
+unsigned size ;
+char where[] ;
+{
+    return ( wrap( realloc( unwrap( old ), WRAPPED_SIZE( size ) ), where ) ) ;
+}
+
+void wrap_free( ptr )
+Pointer ptr ;
+{
+    free( (char *) unwrap( ptr ) ) ;
+
+    return ;
+}
+#else
+Pointer wrap_malloc( size, where )
+unsigned size ;
+char where[] ;
+{
+#ifdef lint
+    where ;
+#endif
+    return ( malloc( size ) ) ;
+}
+
+Pointer wrap_realloc( old, size, where )
+char *old ;
+unsigned size ;
+char where[] ;
+{
+#ifdef lint
+    where ;
+#endif
+#ifdef DSP32
+    stitch_error( "realloc called" ) ;
+#else
+    return ( realloc( old, size ) ) ;
+#endif
+}
+
+void wrap_free( ptr )
+Pointer ptr ;
+{
+    free( ptr ) ;
+
+    return ;
+}
+#endif
+
+#ifdef DSP32
+extern char _EAdata[], _EUdata[] ;
+char *freemem = _EUdata ;
+char errstr[200] ;
+
+int abs( n )
+int n ;
+{
+    if( n >= 0 )
+	return  n ;
+    else
+	return -n ;
+}
+
+#endif
+
+void stitch_error( string, thing )
+char *string ;
+char *thing ;
+{
+    int i ;
+#ifdef DSP32
+    extern int errno ;
+
+    (void) strcpy( errstr, string ) ;
+    errno = thing - (char *) 0 ;
+#else
+    (void) fprintf( stderr, string, thing ) ;
+#endif
+
+#ifdef PC
+    /* put in delay to be able to read message if any */
+
+    for(i=0 ; i<3000 ; i++ )
+	(void) sqrt( 2. ) ;
+#endif
+
+    stitch_exit( 1 ) ;
+}
+
+static void failed( bytes, where )
+unsigned bytes ;
+char *where ;
+{
+    static char msg[200] = "Memory allocation error, allocating %u bytes in " ;
+
+    stitch_error( strcat( msg, where ), ( Pointer ) 0 + bytes ) ;
+}
+
+char stitchStructStr[] = "allocating a structure somewhere" ;
+
+/* memory usage indicators */
+
+static long sused ;
+static long bused ;
+
+Pointer stitch_malloc( bytes, where )
+unsigned bytes ;
+char *where ;
+{
+    Pointer ptr ;
+
+    if( where == stitchStructStr )
+	sused += bytes ;
+    else
+	bused += bytes ;
+
+#ifdef NOT_DSP32_ANYMORE
+    int size = bytes + 3 >> 2 << 2 ;
+
+    ptr = freemem ;
+
+    if( ( freemem += size ) > _EAdata )
+#else
+    if( ( ptr = wrap_malloc( bytes, where ) ) == ( Pointer ) 0 )
+#endif
+	failed( bytes, where ) ;
+
+    return ( ptr ) ;
+}
+
+Pointer stitch_ralloc( bytes, where )
+unsigned bytes ;
+char *where ;
+{
+#ifdef DSP32
+    extern char _EAram2[], _EUram2[] ;
+    static char *mempt   = _EUram2 ;
+    int size ;
+
+    size = bytes + 3 >> 2 << 2 ;
+
+    if( mempt + size <= _EAram2 )
+	return ( ( mempt += size ) - size ) ;
+#endif
+#ifdef NICHE
+
+#ifdef NICHEE
+#include <trillium/ram.h>
+#else
+#define ONCHIP 2
+#endif
+
+    Pointer ptr ;
+
+    if( ( ptr =  valloc( items * size, ONCHIP, size ) ) == ( char * ) 0 )
+	return ( ptr ) ;
+#endif
+
+    return ( stitch_malloc( bytes, where ) ) ;
+}
+
+Pointer stitch_calloc( number, size, where )
+unsigned number, size ;
+char *where ;
+{
+    Pointer ptr ;
+#if defined( NICHE ) || defined( DSP32 )
+    if( ( ptr = stitch_malloc( number * size ) ) == ( char * ) 0 )
+	failed( number * size, where ) ;
+
+    stitch_bzero( ptr, ( int ) number * size ) ;
+
+#else
+    if( ( ptr = ( char * ) calloc( number, size ) ) == ( char * ) 0 )
+	failed( number * size, where ) ;
+#endif
+    return ( ptr ) ;
+}
+
+Pointer stitch_zeroed_malloc( size, where )
+unsigned size ;
+char *where ;
+{
+    Pointer ptr = stitch_malloc( size, where ) ;
+
+    stitch_bzero( ptr, size ) ;
+
+    return ( ptr ) ;
+}
+
+Pointer stitch_copied_malloc( size, model, where )
+unsigned size ;
+Pointer model ;
+char *where ;
+{
+    Pointer ptr = stitch_malloc( size, where ) ;
+
+    stitch_bcopy( model, ptr, size ) ;
+
+    return ( ptr ) ;
+}
+
+void stitch_free( pointer )
+Pointer pointer ;
+{
+    if( pointer == (Pointer) 0 )
+	stitch_error( "attempt to free null pointer" ) ;
+
+#ifndef DSP32
+    wrap_free( pointer ) ;
+#endif
+    return ;
+}
+
+void stitch_exit( status )
+int status ;
+{
+#if 00
+    (void) fprintf( stderr, "memory usage: %d for structures, %d for buffers\n", sused, bused ) ;
+#endif
+
+#ifdef NICHE
+    kexit( status ) ;
+#else
+    exit( status ) ;
+#endif
+}
+
+/* beware these defintions - they make stitch.h mandatory */
+
+#if defined( vax ) || defined( mips ) || defined( sun )
+
+void (*stitch_bcopy)() = ( void ( * ) () ) bcopy ;
+
+#else
+
+#ifdef PC
+
+/* memmove must be able to cope with overlapping buffers */
+
+static void call_memmove( from, to, bytes )
+char *from, *to ;
+unsigned bytes ;
+{
+    ( void ) memmove( to, from, bytes ) ;
+    return ;
+}
+
+void (*stitch_bcopy)() = call_memmove ;
+
+#else
+
+static void reserve_bcopy( from, to, number )
+Pointer from, to ;
+int number ;
+{
+    register char *i, *j, *end ;
+
+    if( from > to ) {
+	for( i = from, j = to, end = from + number ; ( end - i ) % 4 > 0 ; )
+	    *j++ = *i++ ;
+
+	if( i < end )
+	    do
+	    {
+		*j++ = *i++ ;
+		*j++ = *i++ ;
+		*j++ = *i++ ;
+		*j++ = *i++ ;
+	    }
+	    while( i < end ) ;
+    }
+    else if( from < to ) {
+	for( i = from + number, j = to + number, end = from ; ( i - end ) % 4 > 0 ; )
+	    *--j = *--i ;
+
+	if( i > end )
+	    do
+	    {
+		*--j = *--i ;
+		*--j = *--i ;
+		*--j = *--i ;
+		*--j = *--i ;
+	    }
+	    while( i > end ) ;
+    }
+
+    return ;
+}
+
+void (*stitch_bcopy)() = reserve_bcopy ;
+
+#endif
+
+#endif
+
+
+
+#if defined( vax ) || defined( mips ) || defined( sun )
+
+void (*stitch_bzero)() = ( void ( * ) () ) bzero ;
+
+#else
+
+#if defined( PC ) || defined( DSP32 )
+
+static void call_memset( to, bytes )
+char *to ;
+int bytes ;
+{
+    (void) memset( to, '\000', bytes ) ;
+}
+
+void (*stitch_bzero)() = call_memset ;
+
+#else
+
+static void reserve_bzero( to, bytes )
+char *to ;
+int bytes ;
+{
+    register char *ptr = to ;
+    register char *end = to + bytes ;
+
+    while( ptr < end )
+	*ptr++ = 0 ;
+
+    return ;
+}
+
+void (*stitch_bzero)() = reserve_bzero ;
+
+#endif
+
+#endif
+