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shm: when refCount segment size is zero, fallback to old behaviour

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, which is to store reference counts inside the main data segment
This commit is contained in:
Alexey Rybalchenko
2023-11-29 18:48:42 +01:00
parent 05a2ae6a31
commit 2df3d909fa
5 changed files with 69 additions and 25 deletions
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22
test/message/_message.cxx
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@@ -287,8 +287,10 @@ auto ZeroCopy(bool expandedShmMetadata = false) -> void
// The "zero copy" property of the Copy() method is an implementation detail and is not guaranteed.
// Currently it holds true for the shmem (across devices) and for zeromq (within same device) transports.
auto ZeroCopyFromUnmanaged(string const& address, bool expandedShmMetadata = false) -> void
auto ZeroCopyFromUnmanaged(string const& address, bool expandedShmMetadata, uint64_t rcSegmentSize) -> void
{
fair::Logger::SetConsoleSeverity(fair::Severity::debug);
ProgOptions config1;
ProgOptions config2;
string session(tools::Uuid());
@@ -311,11 +313,13 @@ auto ZeroCopyFromUnmanaged(string const& address, bool expandedShmMetadata = fal
const size_t msgSize{100};
const size_t regionSize{1000000};
RegionConfig cfg;
cfg.rcSegmentSize = rcSegmentSize;
tools::Semaphore blocker;
auto region = factory1->CreateUnmanagedRegion(regionSize, [&blocker](void*, size_t, void*) {
blocker.Signal();
});
}, cfg);
{
Channel push("Push", "push", factory1);
@@ -461,12 +465,22 @@ TEST(ZeroCopy, shmem_expanded_metadata) // NOLINT
TEST(ZeroCopyFromUnmanaged, shmem) // NOLINT
{
ZeroCopyFromUnmanaged("ipc://test_zerocopy_unmanaged");
ZeroCopyFromUnmanaged("ipc://test_zerocopy_unmanaged", false, 10000000);
}
TEST(ZeroCopyFromUnmanaged, shmem_expanded_metadata) // NOLINT
{
ZeroCopyFromUnmanaged("ipc://test_zerocopy_unmanaged", true);
ZeroCopyFromUnmanaged("ipc://test_zerocopy_unmanaged_expanded", true, 10000000);
}
TEST(ZeroCopyFromUnmanaged, shmem_no_rc_segment) // NOLINT
{
ZeroCopyFromUnmanaged("ipc://test_zerocopy_unmanaged_no_rc_segment", false, 0);
}
TEST(ZeroCopyFromUnmanaged, shmem_expanded_metadata_no_rc_segment) // NOLINT
{
ZeroCopyFromUnmanaged("ipc://test_zerocopy_unmanaged_expanded_no_rc_segment", true, 0);
}
} // namespace