Differences From Artifact [800160da50]:
- File
src/OFSecureData.m
— part of check-in
[e629dc83a9]
at
2019-12-27 00:41:54
on branch trunk
— OFSecureData: Add allowsSwappableMemory property
With this property, it's possible to specify whether the memory should
be protected from swapping or not. This makes it easier for e.g. the
crypto hash classes: They can now just always use OFSecureData without
wasting unswappable memory if it's not needed. (user: js, size: 14543) [annotate] [blame] [check-ins using]
To Artifact [4f8dc33f67]:
- File src/OFSecureData.m — part of check-in [d5c4dedada] at 2019-12-27 21:43:19 on branch trunk — OFSecureData: Fix #ifdefs (user: js, size: 14698) [annotate] [blame] [check-ins using]
| ︙ | ︙ | |||
256 257 258 259 260 261 262 | of_bitset_clear(page->map, chunkIndex + i); } #endif @implementation OFSecureData @synthesize allowsSwappableMemory = _allowsSwappableMemory; | > | | 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 |
of_bitset_clear(page->map, chunkIndex + i);
}
#endif
@implementation OFSecureData
@synthesize allowsSwappableMemory = _allowsSwappableMemory;
#if defined(HAVE_MMAP) && defined(HAVE_MLOCK) && defined(MAP_ANON) && \
!defined(OF_HAVE_COMPILER_TLS) && defined(OF_HAVE_THREADS)
+ (void)initialize
{
if (self != [OFSecureData class])
return;
if (!of_tlskey_new(&firstPageKey) || !of_tlskey_new(&lastPageKey) ||
!of_tlskey_new(&preallocatedPagesKey) ||
|
| ︙ | ︙ | |||
390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 |
- (instancetype)initWithItemSize: (size_t)itemSize
count: (size_t)count
allowsSwappableMemory: (bool)allowsSwappableMemory
{
self = [super init];
@try {
size_t pageSize = [OFSystemInfo pageSize];
if (count > SIZE_MAX / itemSize)
@throw [OFOutOfRangeException exception];
if (allowsSwappableMemory) {
_items = [self allocMemoryWithSize: itemSize
count: count];
memset(_items, 0, count * itemSize);
} else if (count * itemSize >= pageSize)
_items = mapPages(OF_ROUND_UP_POW2(pageSize,
count * itemSize) / pageSize);
else {
| > > > < | 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 |
- (instancetype)initWithItemSize: (size_t)itemSize
count: (size_t)count
allowsSwappableMemory: (bool)allowsSwappableMemory
{
self = [super init];
@try {
#if defined(HAVE_MMAP) && defined(HAVE_MLOCK) && defined(MAP_ANON)
size_t pageSize = [OFSystemInfo pageSize];
#endif
if (count > SIZE_MAX / itemSize)
@throw [OFOutOfRangeException exception];
if (allowsSwappableMemory) {
_items = [self allocMemoryWithSize: itemSize
count: count];
memset(_items, 0, count * itemSize);
#if defined(HAVE_MMAP) && defined(HAVE_MLOCK) && defined(MAP_ANON)
} else if (count * itemSize >= pageSize)
_items = mapPages(OF_ROUND_UP_POW2(pageSize,
count * itemSize) / pageSize);
else {
# if !defined(OF_HAVE_COMPILER_TLS) && defined(OF_HAVE_THREADS)
struct page *lastPage = of_tlskey_get(lastPageKey);
# endif
for (struct page *page = lastPage; page != NULL;
page = page->previous) {
_items = allocateMemory(page, count * itemSize);
|
| ︙ | ︙ | |||
428 429 430 431 432 433 434 435 436 437 438 439 | count * itemSize); if (_items == NULL) @throw [OFOutOfMemoryException exceptionWithRequestedSize: count * itemSize]; } #else @throw [OFNotImplementedException exceptionWithSelector: _cmd object: nil]; #endif | > > < | 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 |
count * itemSize);
if (_items == NULL)
@throw [OFOutOfMemoryException
exceptionWithRequestedSize:
count * itemSize];
}
}
#else
} else
@throw [OFNotImplementedException
exceptionWithSelector: _cmd
object: nil];
#endif
_itemSize = itemSize;
_count = count;
_allowsSwappableMemory = allowsSwappableMemory;
} @catch (id e) {
[self release];
@throw e;
|
| ︙ | ︙ |