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#include <library/cpp/testing/unittest/registar.h>
#ifdef _unix_
#include <sys/resource.h>
#endif
#include "filemap.h"
#include "info.h"
#include "mincore.h"
#include "mlock.h"
#include "tempfile.h"
#include <util/generic/size_literals.h>
#include <util/system/fs.h>
#include <cstring>
#include <cstdio>
Y_UNIT_TEST_SUITE(MincoreSuite) {
static const char* FileName_("./mappped_file");
Y_UNIT_TEST(TestLockAndInCore) {
TVector<char> content(2_MB);
TTempFile cleanup(FileName_);
TFile file(FileName_, CreateAlways | WrOnly);
file.Write(content.data(), content.size());
file.Close();
TFileMap mappedFile(FileName_, TMemoryMapCommon::oRdWr);
mappedFile.Map(0, mappedFile.Length());
UNIT_ASSERT_EQUAL(mappedFile.MappedSize(), content.size());
UNIT_ASSERT_EQUAL(mappedFile.Length(), static_cast<i64>(content.size()));
LockMemory(mappedFile.Ptr(), mappedFile.Length());
TVector<unsigned char> incore(mappedFile.Length() / NSystemInfo::GetPageSize());
InCoreMemory(mappedFile.Ptr(), mappedFile.Length(), incore.data(), incore.size());
// compile and run on all platforms, but assume non-zero results only on Linux
#if defined(_linux_)
for (const auto& flag : incore) {
UNIT_ASSERT(IsPageInCore(flag));
}
#endif
}
}
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