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#import <unistd.h>
#import "OFArray.h"
#import "OFExceptions.h"
#import "OFMacros.h"
static size_t pagesize = 0;
@implementation OFArray
+ newWithItemSize: (size_t)is
{
return [[OFArray alloc] initWithItemSize: is];
}
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#import <unistd.h>
#import "OFArray.h"
#import "OFExceptions.h"
#import "OFMacros.h"
static size_t lastpagebyte = 0;
@implementation OFArray
+ newWithItemSize: (size_t)is
{
return [[OFArray alloc] initWithItemSize: is];
}
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+ newWithItemSize: (size_t)is
{
return [[OFBigArray alloc] initWithItemSize: is];
}
- initWithItemSize: (size_t)is
{
if (pagesize == 0)
pagesize = getpagesize();
if ((self = [super initWithItemSize: is]))
size = 0;
return self;
}
- addNItems: (size_t)nitems
fromCArray: (void*)carray
{
size_t nsize;
if (nitems > SIZE_MAX - items || items + nitems > SIZE_MAX / itemsize)
[[OFOutOfRangeException newWithObject: self] raise];
nsize = ((items + nitems) * itemsize + pagesize - 1) / pagesize;
if (size != nsize)
data = [self resizeMem: data
toSize: nsize];
memcpy(data + items * itemsize, carray, nitems * itemsize);
items += nitems;
size = nsize;
return self;
}
- removeNItems: (size_t)nitems
{
size_t nsize;
if (nitems > items)
[[OFOutOfRangeException newWithObject: self] raise];
nsize = ((items - nitems) * itemsize + pagesize - 1) / pagesize;
if (size != nsize)
data = [self resizeMem: data
toSize: nsize];
items -= nitems;
size = nsize;
return self;
}
@end
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+ newWithItemSize: (size_t)is
{
return [[OFBigArray alloc] initWithItemSize: is];
}
- initWithItemSize: (size_t)is
{
if (lastpagebyte == 0)
lastpagebyte = getpagesize() - 1;
if ((self = [super initWithItemSize: is]))
size = 0;
return self;
}
- add: (void*)item
{
size_t nsize;
if (SIZE_MAX - items < 1 || items + 1 > SIZE_MAX / itemsize)
[[OFOutOfRangeException newWithObject: self] raise];
nsize = ((items + 1) * itemsize + lastpagebyte) & ~lastpagebyte;
if (size != nsize)
data = [self resizeMem: data
toSize: nsize];
memcpy(data + items++ * itemsize, item, itemsize);
size = nsize;
return self;
}
- addNItems: (size_t)nitems
fromCArray: (void*)carray
{
size_t nsize;
if (nitems > SIZE_MAX - items || items + nitems > SIZE_MAX / itemsize)
[[OFOutOfRangeException newWithObject: self] raise];
nsize = ((items + nitems) * itemsize + lastpagebyte) & ~lastpagebyte;
if (size != nsize)
data = [self resizeMem: data
toSize: nsize];
memcpy(data + items * itemsize, carray, nitems * itemsize);
items += nitems;
size = nsize;
return self;
}
- removeNItems: (size_t)nitems
{
size_t nsize;
if (nitems > items)
[[OFOutOfRangeException newWithObject: self] raise];
nsize = ((items - nitems) * itemsize + lastpagebyte) & ~lastpagebyte;
if (size != nsize)
data = [self resizeMem: data
toSize: nsize];
items -= nitems;
size = nsize;
return self;
}
@end
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