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#pragma once
#if defined(__HAIKU__)
# include "pal_posix.h"
# include <sys/mman.h>
namespace snmalloc
{
/**
* Platform abstraction layer for Haiku. This provides features for this
* system.
*/
class PALHaiku : public PALPOSIX<PALHaiku>
{
public:
/**
* Bitmap of PalFeatures flags indicating the optional features that this
* PAL supports.
*
*/
static constexpr uint64_t pal_features = PALPOSIX::pal_features | Entropy;
/**
* Haiku requires an explicit no-reserve flag in `mmap` to guarantee lazy
* commit.
*/
static constexpr int default_mmap_flags = MAP_NORESERVE;
/**
* Notify platform that we will not be needing these pages.
* Haiku does not provide madvise call per say only the posix equivalent.
*/
static void notify_not_using(void* p, size_t size) noexcept
{
SNMALLOC_ASSERT(is_aligned_block<page_size>(p, size));
posix_madvise(p, size, POSIX_MADV_DONTNEED);
}
};
} // namespace snmalloc
#endif