39 lines
1.1 KiB
C++
39 lines
1.1 KiB
C++
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//===- ErrnoTest.cpp - Error handling unit tests --------------------------===//
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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/Support/Errno.h"
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#include "gtest/gtest.h"
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using namespace llvm::sys;
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TEST(ErrnoTest, RetryAfterSignal) {
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EXPECT_EQ(1, RetryAfterSignal(-1, [] { return 1; }));
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EXPECT_EQ(-1, RetryAfterSignal(-1, [] {
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errno = EAGAIN;
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return -1;
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}));
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EXPECT_EQ(EAGAIN, errno);
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unsigned calls = 0;
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EXPECT_EQ(1, RetryAfterSignal(-1, [&calls] {
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errno = EINTR;
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++calls;
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return calls == 1 ? -1 : 1;
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}));
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EXPECT_EQ(2u, calls);
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EXPECT_EQ(1, RetryAfterSignal(-1, [](int x) { return x; }, 1));
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std::unique_ptr<int> P(RetryAfterSignal(nullptr, [] { return new int(47); }));
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EXPECT_EQ(47, *P);
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errno = EINTR;
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EXPECT_EQ(-1, RetryAfterSignal(-1, [] { return -1; }));
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}
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