pair<void*,uint64_t>
IOBufQueue::preallocateSlow(uint64_t min, uint64_t newAllocationSize,
uint64_t max) {
// Allocate a new buffer of the requested max size.
unique_ptr<IOBuf> newBuf(IOBuf::create(std::max(min, newAllocationSize)));
appendToChain(head_, std::move(newBuf), false);
IOBuf* last = head_->prev();
return make_pair(last->writableTail(),
std::min(max, last->tailroom()));
}
pair<void*,uint64_t>
IOBufQueue::preallocateSlow(uint64_t min, uint64_t newAllocationSize,
uint64_t max) {
// Avoid grabbing update guard, since we're manually setting the cache ptrs.
flushCache();
// Allocate a new buffer of the requested max size.
unique_ptr<IOBuf> newBuf(IOBuf::create(std::max(min, newAllocationSize)));
tailStart_ = newBuf->writableTail();
cachePtr_->cachedRange = std::pair<uint8_t*, uint8_t*>(
tailStart_, tailStart_ + newBuf->tailroom());
appendToChain(head_, std::move(newBuf), false);
return make_pair(writableTail(), std::min<uint64_t>(max, tailroom()));
}
tstring Utility::GetRegStringValue(CRegKey& reg, LPCTSTR szValueName)
{
DWORD dwBufSize = 512;
TCHAR szBuf[512] = {0};
LONG lRes = reg.QueryStringValue(szValueName, szBuf, &dwBufSize);
if (lRes == ERROR_SUCCESS)
return szBuf;
if (lRes != ERROR_MORE_DATA)
return _T(""); // unknown error
// allocate more memory
boost::scoped_array<TCHAR> newBuf(new TCHAR[dwBufSize]);
lRes = reg.QueryStringValue(szValueName, newBuf.get(), &dwBufSize);
if (lRes != ERROR_SUCCESS)
return _T(""); // unknown error
return newBuf.get();
}
GLDEF_C void TestTDes<T,S,L,R>::Test15()
//
// Constructor over a TBufC
//
{
T oldBuf(_TL("Test 15"));
oldBuf.__DbgTestInvariant();
T newBuf(oldBuf);
newBuf.__DbgTestInvariant();
test(newBuf.Length()==8);
test(newBuf.Length()==oldBuf.Length());
test(*(newBuf.Ptr())=='T');
test(*(newBuf.Ptr()+1)=='e');
test(*(newBuf.Ptr()+2)=='s');
test(*(newBuf.Ptr()+3)=='t');
test(*(newBuf.Ptr()+4)==' ');
test(*(newBuf.Ptr()+5)==' ');
test(*(newBuf.Ptr()+6)=='1');
test(*(newBuf.Ptr()+7)=='5');
}
