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to reflect the new license. We understand that people may be surprised that we're moving the header entirely to discuss the new license. We checked this carefully with the Foundation's lawyer and we believe this is the correct approach. Essentially, all code in the project is now made available by the LLVM project under our new license, so you will see that the license headers include that license only. Some of our contributors have contributed code under our old license, and accordingly, we have retained a copy of our old license notice in the top-level files in each project and repository. llvm-svn: 351636
95 lines
3.4 KiB
C++
95 lines
3.4 KiB
C++
//===--- ThreadSafeModuleTest.cpp - Test basic use of ThreadSafeModule ----===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/ExecutionEngine/Orc/ThreadSafeModule.h"
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#include "gtest/gtest.h"
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#include <atomic>
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#include <future>
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#include <thread>
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using namespace llvm;
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using namespace llvm::orc;
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namespace {
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TEST(ThreadSafeModuleTest, ContextWhollyOwnedByOneModule) {
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// Test that ownership of a context can be transferred to a single
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// ThreadSafeModule.
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ThreadSafeContext TSCtx(llvm::make_unique<LLVMContext>());
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auto M = llvm::make_unique<Module>("M", *TSCtx.getContext());
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ThreadSafeModule TSM(std::move(M), std::move(TSCtx));
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}
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TEST(ThreadSafeModuleTest, ContextOwnershipSharedByTwoModules) {
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// Test that ownership of a context can be shared between more than one
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// ThreadSafeModule.
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ThreadSafeContext TSCtx(llvm::make_unique<LLVMContext>());
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auto M1 = llvm::make_unique<Module>("M1", *TSCtx.getContext());
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ThreadSafeModule TSM1(std::move(M1), TSCtx);
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auto M2 = llvm::make_unique<Module>("M2", *TSCtx.getContext());
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ThreadSafeModule TSM2(std::move(M2), std::move(TSCtx));
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}
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TEST(ThreadSafeModuleTest, ContextOwnershipSharedWithClient) {
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// Test that ownership of a context can be shared with a client-held
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// ThreadSafeContext so that it can be re-used for new modules.
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ThreadSafeContext TSCtx(llvm::make_unique<LLVMContext>());
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{
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// Create and destroy a module.
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auto M1 = llvm::make_unique<Module>("M1", *TSCtx.getContext());
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ThreadSafeModule TSM1(std::move(M1), TSCtx);
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}
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// Verify that the context is still available for re-use.
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auto M2 = llvm::make_unique<Module>("M2", *TSCtx.getContext());
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ThreadSafeModule TSM2(std::move(M2), std::move(TSCtx));
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}
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TEST(ThreadSafeModuleTest, ThreadSafeModuleMoveAssignment) {
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// Move assignment needs to move the module before the context (opposite
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// to the field order) to ensure that overwriting with an empty
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// ThreadSafeModule does not destroy the context early.
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ThreadSafeContext TSCtx(llvm::make_unique<LLVMContext>());
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auto M = llvm::make_unique<Module>("M", *TSCtx.getContext());
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ThreadSafeModule TSM(std::move(M), std::move(TSCtx));
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TSM = ThreadSafeModule();
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}
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TEST(ThreadSafeModuleTest, BasicContextLockAPI) {
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// Test that basic lock API calls work.
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ThreadSafeContext TSCtx(llvm::make_unique<LLVMContext>());
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auto M = llvm::make_unique<Module>("M", *TSCtx.getContext());
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ThreadSafeModule TSM(std::move(M), TSCtx);
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{ auto L = TSCtx.getLock(); }
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{ auto L = TSM.getContextLock(); }
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}
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TEST(ThreadSafeModuleTest, ContextLockPreservesContext) {
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// Test that the existence of a context lock preserves the attached
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// context.
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// The trick to verify this is a bit of a hack: We attach a Module
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// (without the ThreadSafeModule wrapper) to the context, then verify
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// that this Module destructs safely (which it will not if its context
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// has been destroyed) even though all references to the context have
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// been thrown away (apart from the lock).
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ThreadSafeContext TSCtx(llvm::make_unique<LLVMContext>());
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auto L = TSCtx.getLock();
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auto &Ctx = *TSCtx.getContext();
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auto M = llvm::make_unique<Module>("M", Ctx);
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TSCtx = ThreadSafeContext();
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}
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} // end anonymous namespace
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