Boost
C++ Libraries
...one of the most highly
regarded and expertly designed C++ library projects in the
world.
— Herb Sutter and Andrei
Alexandrescu, C++
Coding Standards
Boost
C++ Libraries
...one of the most highly
regarded and expertly designed C++ library projects in the
world.
— Herb Sutter and Andrei
Alexandrescu, C++
Coding Standards
boost::interprocess::mapped_region::advice_types
// In header: <boost/interprocess/mapped_region.hpp> enum advice_types { advice_normal, advice_sequential, advice_random, advice_willneed, advice_dontneed };
This enum specifies region usage behaviors that an application can specify to the mapped region implementation.
advice_normalSpecifies that the application has no advice to give on its behavior with respect to the region. It is the default characteristic if no advice is given for a range of memory.
advice_sequentialSpecifies that the application expects to access the region sequentially from lower addresses to higher addresses. The implementation can lower the priority of preceding pages within the region once a page have been accessed.
advice_randomSpecifies that the application expects to access the region in a random order, and prefetching is likely not advantageous.
advice_willneedSpecifies that the application expects to access the region in the near future. The implementation can prefetch pages of the region.
advice_dontneedSpecifies that the application expects that it will not access the region in the near future. The implementation can unload pages within the range to save system resources.