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Merge bitcoin/bitcoin#25320: util: modify Win32LockedPageAllocator to query windows for limit.

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1cb42aeda3 util: modify Win32LockedPageAllocator to query windows for limit (Oskar Mendel)

Pull request description:

  This PR resolves a todo within the Win32LockedPageAllocator: `// TODO is there a limit on Windows, how to get it?`.
  The idea is to use the Windows API to get the limits like the posix based allocator does with `getrlimit`.

  I use [GetProcessWorkingSetSize](https://docs.microsoft.com/en-us/windows/win32/api/memoryapi/nf-memoryapi-getprocessworkingsetsize) to perform this task and fallback to `return std::numeric_limits<size_t>::max();` just like the posix implementation does.

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Tree-SHA512: 7bdd8a57a4e64ee59d752417a519656e03526878462060753be4dce481eff4889fb5edc1bdbd575b707d9b2dfe255c87da9ef67baac97de9ac5e70a04c852081
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laanwj 2022-06-14 09:15:51 +02:00
commit c5fbcf5f8d
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5
src/support/lockedpool.cpp
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@ -202,7 +202,10 @@ void Win32LockedPageAllocator::FreeLocked(void* addr, size_t len)
size_t Win32LockedPageAllocator::GetLimit() size_t Win32LockedPageAllocator::GetLimit()
{ {
// TODO is there a limit on Windows, how to get it? size_t min, max;
if(GetProcessWorkingSetSize(GetCurrentProcess(), &min, &max) != 0) {
return min;
}
return std::numeric_limits<size_t>::max(); return std::numeric_limits<size_t>::max();
} }
#endif #endif