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Archiving fix.

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git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@12623 72102866-910b-0410-8b05-ffd578937521
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CaS 2002-02-21 13:04:34 +00:00
parent e030a18e39
commit 2ffd921a4c
2 changed files with 51 additions and 17 deletions
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9
ChangeLog
View file

@ -1,3 +1,12 @@
2002-02-21 Richard Frith-Macdonald <rfm@gnu.org>
* Source/NSValue.m: Fixed bug in archiving NSValue objects ... was
creating faulty archives which would crash on unarchiving.
If you have any archives created using the buggy code, try to
unarchive them by using the previous version of this file but
with the RELEASE() of the decoded NSData object removed. This
*might* permit archive recovery, though it will cause a memory leak.
2002-02-20 Richard Frith-Macdonald <rfm@gnu.org>
* Source/NSUser.m: locking erro fixed by Stephen brandon

59
Source/NSValue.m
View file

@ -366,7 +366,7 @@ static NSLock *placeholderLock;
- (void) encodeWithCoder: (NSCoder *)coder
{
unsigned size;
char *data;
const char *data;
const char *objctype = [self objCType];
NSMutableData *d;
@ -378,11 +378,16 @@ static NSLock *placeholderLock;
[self getValue: (void*)data];
d = [NSMutableData new];
[d serializeDataAt: data ofObjCType: objctype context: nil];
[coder encodeValueOfObjCType: @encode(id) at: &d];
size = [d length];
[coder encodeValueOfObjCType: @encode(unsigned) at: &size];
NSZoneFree(NSDefaultMallocZone(), (void*)data);
data = [d bytes];
[coder encodeArrayOfObjCType: @encode(unsigned char) count: size at: data];
RELEASE(d);
NSZoneFree(NSDefaultMallocZone(), data);
}
@class NSDataStatic; // Neede for decoding.
- (id) initWithCoder: (NSCoder *)coder
{
char type[64];
@ -458,9 +463,13 @@ static NSLock *placeholderLock;
}
else
{
NSData *d;
static NSData *d = nil;
unsigned cursor = 0;
if (d == nil)
{
d = [NSDataStatic allocWithZone: NSDefaultMallocZone()];
}
/*
* For performance, decode small values directly onto the stack,
* For larger values we allocate and deallocate heap space.
@ -470,26 +479,42 @@ static NSLock *placeholderLock;
{
unsigned char data[size];
[coder decodeValueOfObjCType: @encode(id) at: &d];
[d deserializeDataAt: data
ofObjCType: objctype
atCursor: &cursor
context: nil];
[coder decodeValueOfObjCType: @encode(unsigned) at: &size];
{
unsigned char serialized[size];
[coder decodeArrayOfObjCType: @encode(unsigned char)
count: size
at: (void*)serialized];
d = [d initWithBytesNoCopy: (void*)serialized length: size];
[d deserializeDataAt: data
ofObjCType: objctype
atCursor: &cursor
context: nil];
}
o = [o initWithBytes: data objCType: objctype];
RELEASE(d);
}
else
{
unsigned char *data;
void *data;
data = (void *)NSZoneMalloc(NSDefaultMallocZone(), size);
[coder decodeValueOfObjCType: @encode(id) at: &d];
[d deserializeDataAt: data
ofObjCType: objctype
atCursor: &cursor
context: nil];
[coder decodeValueOfObjCType: @encode(unsigned) at: &size];
{
void *serialized;
serialized = (void *)NSZoneMalloc(NSDefaultMallocZone(), size);
[coder decodeArrayOfObjCType: @encode(unsigned char)
count: size
at: serialized];
d = [d initWithBytesNoCopy: serialized length: size];
[d deserializeDataAt: data
ofObjCType: objctype
atCursor: &cursor
context: nil];
NSZoneFree(NSDefaultMallocZone(), serialized);
}
o = [o initWithBytes: data objCType: objctype];
RELEASE(d);
NSZoneFree(NSDefaultMallocZone(), data);
}
}