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ff26ea6db9
knowledge of Mach. MachMultiprocess builds on this new base class. TEST=util_test MachMultiprocess.*:Multiprocess.* R=rsesek@chromium.org Review URL: https://codereview.chromium.org/506143002
85 lines
2.3 KiB
C++
85 lines
2.3 KiB
C++
// Copyright 2014 The Crashpad Authors. All rights reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "util/test/multiprocess.h"
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#include <unistd.h>
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#include "base/basictypes.h"
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#include "gtest/gtest.h"
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#include "util/file/fd_io.h"
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#include "util/test/errors.h"
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namespace {
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using namespace crashpad;
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using namespace crashpad::test;
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class TestMultiprocess final : public Multiprocess {
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public:
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TestMultiprocess() : Multiprocess() {}
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~TestMultiprocess() {}
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private:
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virtual void MultiprocessParent() override {
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int read_fd = ReadPipeFD();
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char c;
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ssize_t rv = ReadFD(read_fd, &c, 1);
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ASSERT_EQ(1, rv) << ErrnoMessage("read");
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EXPECT_EQ('M', c);
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pid_t pid;
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rv = ReadFD(read_fd, &pid, sizeof(pid));
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ASSERT_EQ(static_cast<ssize_t>(sizeof(pid)), rv) << ErrnoMessage("read");
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EXPECT_EQ(pid, ChildPID());
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int write_fd = WritePipeFD();
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c = 'm';
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rv = WriteFD(write_fd, &c, 1);
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ASSERT_EQ(1, rv) << ErrnoMessage("write");
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// The child will close its end of the pipe and exit. Make sure that the
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// parent sees EOF.
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rv = ReadFD(read_fd, &c, 1);
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ASSERT_EQ(0, rv) << ErrnoMessage("read");
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}
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virtual void MultiprocessChild() override {
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int write_fd = WritePipeFD();
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char c = 'M';
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ssize_t rv = WriteFD(write_fd, &c, 1);
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ASSERT_EQ(1, rv) << ErrnoMessage("write");
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pid_t pid = getpid();
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rv = WriteFD(write_fd, &pid, sizeof(pid));
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ASSERT_EQ(static_cast<ssize_t>(sizeof(pid)), rv) << ErrnoMessage("write");
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int read_fd = ReadPipeFD();
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rv = ReadFD(read_fd, &c, 1);
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ASSERT_EQ(1, rv) << ErrnoMessage("read");
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EXPECT_EQ('m', c);
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}
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DISALLOW_COPY_AND_ASSIGN(TestMultiprocess);
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};
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TEST(Multiprocess, Multiprocess) {
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TestMultiprocess multiprocess;
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multiprocess.Run();
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}
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} // namespace
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