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fix(sysman): fixes multithread access issue with FDCache

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Related-To: NEO-9720

Signed-off-by: Kulkarni, Ashwin Kumar <ashwin.kumar.kulkarni@intel.com>
This commit is contained in:
Kulkarni, Ashwin Kumar
2023-12-07 07:40:17 +00:00
committed by Compute-Runtime-Automation
parent f395bdbdab
commit a064388ba8
6 changed files with 66 additions and 2 deletions
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29
level_zero/tools/test/unit_tests/sources/sysman/linux/test_sysman.cpp
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@@ -540,6 +540,35 @@ TEST(FdCacheTest, GivenValidFdCacheWhenClearingCacheThenVerifyProperFdsAreClosed
delete pFdCache;
}
TEST(FdCacheTest, GivenValidFdCacheWhenCallingGetFdOnMultipleFilesManyTimesThenVerifyCacheIsUpdatedCorrectly) {
class MockFdCache : public FdCache {
public:
using FdCache::fdMap;
};
VariableBackup<decltype(NEO::SysCalls::sysCallsOpen)> mockOpen(&NEO::SysCalls::sysCallsOpen, [](const char *pathname, int flags) -> int {
return 1;
});
std::unique_ptr<MockFdCache> pFdCache = std::make_unique<MockFdCache>();
std::string fileName = {};
for (auto i = 0; i < L0::FdCache::maxSize; i++) {
fileName = "mockfile" + std::to_string(i) + ".txt";
int j = i + 1;
while (j--) {
EXPECT_LE(0, pFdCache->getFd(fileName));
}
}
// replace a least referred file and add new file
fileName = "mockfile100.txt";
EXPECT_LE(0, pFdCache->getFd(fileName));
// Verify cache doesn't have an element that is accessed less number of times.
EXPECT_EQ(pFdCache->fdMap.end(), pFdCache->fdMap.find("mockfile0.txt"));
}
TEST_F(SysmanDeviceFixture, GivenSysfsAccessClassAndUnsignedIntegerWhenCallingReadThenSuccessIsReturned) {
VariableBackup<decltype(NEO::SysCalls::sysCallsOpen)> mockOpen(&NEO::SysCalls::sysCallsOpen, [](const char *pathname, int flags) -> int {