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//
// HFFullMemoryByteArray.m
// HexFiend_2
//
// Copyright 2007 ridiculous_fish. All rights reserved.
//
#import <HexFiend/HFByteArray_Internal.h>
#import <HexFiend/HFFullMemoryByteArray.h>
#import <HexFiend/HFFullMemoryByteSlice.h>
#import <HexFiend/HFByteSlice.h>
@implementation HFFullMemoryByteArray
- (instancetype)init {
self = [super init];
data = [[NSMutableData alloc] init];
return self;
}
- (void)dealloc {
[data release];
[super dealloc];
}
- (unsigned long long)length {
return [data length];
}
- (void)copyBytes:(unsigned char *)dst range:(HFRange)range {
HFASSERT(range.length == 0 || dst != NULL);
HFASSERT(HFSumDoesNotOverflow(range.location, range.length));
HFASSERT(range.location + range.length <= [self length]);
unsigned char* bytes = [data mutableBytes];
memmove(dst, bytes + ll2l(range.location), ll2l(range.length));
}
- (HFByteArray *)subarrayWithRange:(HFRange)lrange {
HFRange entireRange = HFRangeMake(0, [self length]);
HFASSERT(HFRangeIsSubrangeOfRange(lrange, entireRange));
NSRange range;
range.location = ll2l(lrange.location);
range.length = ll2l(lrange.length);
HFFullMemoryByteArray* result = [[[self class] alloc] init];
[result->data setData:[data subdataWithRange:range]];
return [result autorelease];
}
- (NSArray *)byteSlices {
return @[[[[HFFullMemoryByteSlice alloc] initWithData:data] autorelease]];
}
- (void)insertByteSlice:(HFByteSlice *)slice inRange:(HFRange)lrange {
[self incrementGenerationOrRaiseIfLockedForSelector:_cmd];
HFASSERT([slice length] <= NSUIntegerMax);
NSUInteger length = ll2l([slice length]);
NSRange range;
HFASSERT(lrange.location <= NSUIntegerMax);
HFASSERT(lrange.length <= NSUIntegerMax);
HFASSERT(HFSumDoesNotOverflow(lrange.location, lrange.length));
range.location = ll2l(lrange.location);
range.length = ll2l(lrange.length);
void* buff = check_malloc(length);
[slice copyBytes:buff range:HFRangeMake(0, length)];
[data replaceBytesInRange:range withBytes:buff length:length];
free(buff);
}
@end
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