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Unified Diff: util/test/multiprocess.cc

Issue 880763002: Reorganize Multiprocess and implement for Windows (Closed) Base URL: https://chromium.googlesource.com/crashpad/crashpad@master
Patch Set: fixes 2 Created 5 years, 11 months ago
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Index: util/test/multiprocess.cc
diff --git a/util/test/multiprocess.cc b/util/test/multiprocess.cc
deleted file mode 100644
index c6b648b6abfa4dd833c2fdb99de5272d4536e24b..0000000000000000000000000000000000000000
--- a/util/test/multiprocess.cc
+++ /dev/null
@@ -1,218 +0,0 @@
-// Copyright 2014 The Crashpad Authors. All rights reserved.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-// http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-#include "util/test/multiprocess.h"
-
-#include <signal.h>
-#include <stdlib.h>
-#include <sys/wait.h>
-
-#include <string>
-
-#include "base/auto_reset.h"
-#include "base/files/scoped_file.h"
-#include "base/logging.h"
-#include "base/memory/scoped_ptr.h"
-#include "base/posix/eintr_wrapper.h"
-#include "base/strings/stringprintf.h"
-#include "gtest/gtest.h"
-#include "util/misc/scoped_forbid_return.h"
-#include "util/test/errors.h"
-
-namespace crashpad {
-namespace test {
-
-namespace internal {
-
-struct MultiprocessInfo {
- MultiprocessInfo()
- : pipe_c2p_read(-1),
- pipe_c2p_write(-1),
- pipe_p2c_read(-1),
- pipe_p2c_write(-1),
- child_pid(0) {}
-
- base::ScopedFD pipe_c2p_read; // child to parent
- base::ScopedFD pipe_c2p_write; // child to parent
- base::ScopedFD pipe_p2c_read; // parent to child
- base::ScopedFD pipe_p2c_write; // parent to child
- pid_t child_pid; // valid only in parent
-};
-
-} // namespace internal
-
-Multiprocess::Multiprocess()
- : info_(nullptr),
- code_(EXIT_SUCCESS),
- reason_(kTerminationNormal) {
-}
-
-void Multiprocess::Run() {
- ASSERT_EQ(nullptr, info_);
- scoped_ptr<internal::MultiprocessInfo> info(new internal::MultiprocessInfo);
- base::AutoReset<internal::MultiprocessInfo*> reset_info(&info_, info.get());
-
- ASSERT_NO_FATAL_FAILURE(PreFork());
-
- pid_t pid = fork();
- ASSERT_GE(pid, 0) << ErrnoMessage("fork");
-
- if (pid > 0) {
- info_->child_pid = pid;
-
- RunParent();
-
- // Waiting for the child happens here instead of in RunParent() because even
- // if RunParent() returns early due to a gtest fatal assertion failure, the
- // child should still be reaped.
-
- // This will make the parent hang up on the child as much as would be
- // visible from the child’s perspective. The child’s side of the pipe will
- // be broken, the child’s remote port will become a dead name, and an
- // attempt by the child to look up the service will fail. If this weren’t
- // done, the child might hang while waiting for a parent that has already
- // triggered a fatal assertion failure to do something.
- info.reset();
- info_ = nullptr;
-
- int status;
- pid_t wait_pid = HANDLE_EINTR(waitpid(pid, &status, 0));
- ASSERT_EQ(pid, wait_pid) << ErrnoMessage("waitpid");
-
- TerminationReason reason;
- int code;
- std::string message;
- if (WIFEXITED(status)) {
- reason = kTerminationNormal;
- code = WEXITSTATUS(status);
- message = base::StringPrintf("Child exited with code %d, expected", code);
- } else if (WIFSIGNALED(status)) {
- reason = kTerminationSignal;
- code = WTERMSIG(status);
- message =
- base::StringPrintf("Child terminated by signal %d (%s)%s, expected",
- code,
- strsignal(code),
- WCOREDUMP(status) ? " (core dumped)" : "");
- } else {
- FAIL() << "Unknown termination reason";
- }
-
- if (reason_ == kTerminationNormal) {
- message += base::StringPrintf(" exit with code %d", code_);
- } else if (reason == kTerminationSignal) {
- message += base::StringPrintf(" termination by signal %d", code_);
- }
-
- if (reason != reason_ || code != code_) {
- ADD_FAILURE() << message;
- }
- } else {
- RunChild();
- }
-}
-
-void Multiprocess::SetExpectedChildTermination(TerminationReason reason,
- int code) {
- reason_ = reason;
- code_ = code;
-}
-
-Multiprocess::~Multiprocess() {
-}
-
-void Multiprocess::PreFork() {
- int pipe_fds_c2p[2];
- int rv = pipe(pipe_fds_c2p);
- ASSERT_EQ(0, rv) << ErrnoMessage("pipe");
-
- info_->pipe_c2p_read.reset(pipe_fds_c2p[0]);
- info_->pipe_c2p_write.reset(pipe_fds_c2p[1]);
-
- int pipe_fds_p2c[2];
- rv = pipe(pipe_fds_p2c);
- ASSERT_EQ(0, rv) << ErrnoMessage("pipe");
-
- info_->pipe_p2c_read.reset(pipe_fds_p2c[0]);
- info_->pipe_p2c_write.reset(pipe_fds_p2c[1]);
-}
-
-pid_t Multiprocess::ChildPID() const {
- EXPECT_NE(0, info_->child_pid);
- return info_->child_pid;
-}
-
-int Multiprocess::ReadPipeFD() const {
- int fd = info_->child_pid ? info_->pipe_c2p_read.get()
- : info_->pipe_p2c_read.get();
- CHECK_NE(fd, -1);
- return fd;
-}
-
-int Multiprocess::WritePipeFD() const {
- int fd = info_->child_pid ? info_->pipe_p2c_write.get()
- : info_->pipe_c2p_write.get();
- CHECK_NE(fd, -1);
- return fd;
-}
-
-void Multiprocess::CloseReadPipe() {
- if (info_->child_pid) {
- info_->pipe_c2p_read.reset();
- } else {
- info_->pipe_p2c_read.reset();
- }
-}
-
-void Multiprocess::CloseWritePipe() {
- if (info_->child_pid) {
- info_->pipe_p2c_write.reset();
- } else {
- info_->pipe_c2p_write.reset();
- }
-}
-
-void Multiprocess::RunParent() {
- // The parent uses the read end of c2p and the write end of p2c.
- info_->pipe_c2p_write.reset();
- info_->pipe_p2c_read.reset();
-
- MultiprocessParent();
-
- info_->pipe_c2p_read.reset();
- info_->pipe_p2c_write.reset();
-}
-
-void Multiprocess::RunChild() {
- ScopedForbidReturn forbid_return;
-
- // The child uses the write end of c2p and the read end of p2c.
- info_->pipe_c2p_read.reset();
- info_->pipe_p2c_write.reset();
-
- MultiprocessChild();
-
- info_->pipe_c2p_write.reset();
- info_->pipe_p2c_read.reset();
-
- if (testing::Test::HasFailure()) {
- // Trigger the ScopedForbidReturn destructor.
- return;
- }
-
- exit(0);
-}
-
-} // namespace test
-} // namespace crashpad
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