Reorganize Multiprocess and implement for Windows

util/test/multiprocess_test.cc

Index: util/test/multiprocess_test.cc
diff --git a/util/test/multiprocess_test.cc b/util/test/multiprocess_test.cc
deleted file mode 100644
index 4d978e042f02c0c2ff721f0c0def17ee4b43ba14..0000000000000000000000000000000000000000
--- a/util/test/multiprocess_test.cc
+++ /dev/null
@@ -1,289 +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 <stdlib.h>
-#include <sys/signal.h>
-#include <unistd.h>
-
-#include "base/basictypes.h"
-#include "gtest/gtest.h"
-#include "util/file/file_io.h"
-
-namespace crashpad {
-namespace test {
-namespace {
-
-class TestMultiprocess final : public Multiprocess {
- public:
-  TestMultiprocess() : Multiprocess() {}
-
-  ~TestMultiprocess() {}
-
- private:
-  // Multiprocess:
-
-  void MultiprocessParent() override {
-    int read_fd = ReadPipeFD();
-    char c;
-    CheckedReadFile(read_fd, &c, 1);
-    EXPECT_EQ('M', c);
-
-    pid_t pid;
-    CheckedReadFile(read_fd, &pid, sizeof(pid));
-    EXPECT_EQ(pid, ChildPID());
-
-    c = 'm';
-    CheckedWriteFile(WritePipeFD(), &c, 1);
-
-    // The child will close its end of the pipe and exit. Make sure that the
-    // parent sees EOF.
-    CheckedReadFileAtEOF(read_fd);
-  }
-
-  void MultiprocessChild() override {
-    int write_fd = WritePipeFD();
-
-    char c = 'M';
-    CheckedWriteFile(write_fd, &c, 1);
-
-    pid_t pid = getpid();
-    CheckedWriteFile(write_fd, &pid, sizeof(pid));
-
-    CheckedReadFile(ReadPipeFD(), &c, 1);
-    EXPECT_EQ('m', c);
-  }
-
-  DISALLOW_COPY_AND_ASSIGN(TestMultiprocess);
-};
-
-TEST(Multiprocess, Multiprocess) {
-  TestMultiprocess multiprocess;
-  multiprocess.Run();
-}
-
-class TestMultiprocessUnclean final : public Multiprocess {
- public:
-  enum TerminationType {
-    kExitSuccess = 0,
-    kExitFailure,
-    kExit2,
-    kAbort,
-  };
-
-  explicit TestMultiprocessUnclean(TerminationType type)
-      : Multiprocess(),
-        type_(type) {
-    if (type_ == kAbort) {
-      SetExpectedChildTermination(kTerminationSignal, SIGABRT);
-    } else {
-      SetExpectedChildTermination(kTerminationNormal, ExitCode());
-    }
-  }
-
-  ~TestMultiprocessUnclean() {}
-
- private:
-  int ExitCode() const {
-    return type_;
-  }
-
-  // Multiprocess:
-
-  void MultiprocessParent() override {
-  }
-
-  void MultiprocessChild() override {
-    if (type_ == kAbort) {
-      abort();
-    } else {
-      _exit(ExitCode());
-    }
-  }
-
-  TerminationType type_;
-
-  DISALLOW_COPY_AND_ASSIGN(TestMultiprocessUnclean);
-};
-
-TEST(Multiprocess, SuccessfulExit) {
-  TestMultiprocessUnclean multiprocess(TestMultiprocessUnclean::kExitSuccess);
-  multiprocess.Run();
-}
-
-TEST(Multiprocess, UnsuccessfulExit) {
-  TestMultiprocessUnclean multiprocess(TestMultiprocessUnclean::kExitFailure);
-  multiprocess.Run();
-}
-
-TEST(Multiprocess, Exit2) {
-  TestMultiprocessUnclean multiprocess(TestMultiprocessUnclean::kExit2);
-  multiprocess.Run();
-}
-
-TEST(Multiprocess, AbortSignal) {
-  TestMultiprocessUnclean multiprocess(TestMultiprocessUnclean::kAbort);
-  multiprocess.Run();
-}
-
-class TestMultiprocessClosePipe final : public Multiprocess {
- public:
-  enum WhoCloses {
-    kParentCloses = 0,
-    kChildCloses,
-  };
-  enum WhatCloses {
-    kReadCloses = 0,
-    kWriteCloses,
-    kReadAndWriteClose,
-  };
-
-  TestMultiprocessClosePipe(WhoCloses who_closes, WhatCloses what_closes)
-      : Multiprocess(),
-        who_closes_(who_closes),
-        what_closes_(what_closes) {
-  }
-
-  ~TestMultiprocessClosePipe() {}
-
- private:
-  void VerifyInitial() {
-    ASSERT_NE(-1, ReadPipeFD());
-    ASSERT_NE(-1, WritePipeFD());
-  }
-
-  // Verifies that the partner process did what it was supposed to do. This must
-  // only be called when who_closes_ names the partner process, not this
-  // process.
-  //
-  // If the partner was supposed to close its write pipe, the read pipe will be
-  // checked to ensure that it shows end-of-file.
-  //
-  // If the partner was supposed to close its read pipe, the write pipe will be
-  // checked to ensure that a checked write causes death. This can only be done
-  // if the partner also provides some type of signal when it has closed its
-  // read pipe, which is done in the form of it closing its write pipe, causing
-  // the read pipe in this process to show end-of-file.
-  void VerifyPartner() {
-    if (what_closes_ == kWriteCloses) {
-      CheckedReadFileAtEOF(ReadPipeFD());
-    } else if (what_closes_ == kReadAndWriteClose) {
-      CheckedReadFileAtEOF(ReadPipeFD());
-      char c = '\0';
-
-      // This will raise SIGPIPE. If fatal (the normal case), that will cause
-      // process termination. If SIGPIPE is being handled somewhere, the write
-      // will still fail and set errno to EPIPE, and CheckedWriteFile() will
-      // abort execution. Regardless of how SIGPIPE is handled, the process will
-      // be terminated. Because the actual termination mechanism is not known,
-      // no regex can be specified.
-      EXPECT_DEATH(CheckedWriteFile(WritePipeFD(), &c, 1), "");
-    }
-  }
-
-  void Close() {
-    switch (what_closes_) {
-      case kReadCloses:
-        CloseReadPipe();
-        EXPECT_NE(-1, WritePipeFD());
-        EXPECT_DEATH(ReadPipeFD(), "fd");
-        break;
-      case kWriteCloses:
-        CloseWritePipe();
-        EXPECT_NE(-1, ReadPipeFD());
-        EXPECT_DEATH(WritePipeFD(), "fd");
-        break;
-      case kReadAndWriteClose:
-        CloseReadPipe();
-        CloseWritePipe();
-        EXPECT_DEATH(ReadPipeFD(), "fd");
-        EXPECT_DEATH(WritePipeFD(), "fd");
-        break;
-    }
-  }
-
-  // Multiprocess:
-
-  void MultiprocessParent() override {
-    ASSERT_NO_FATAL_FAILURE(VerifyInitial());
-
-    if (who_closes_ == kParentCloses) {
-      Close();
-    } else {
-      VerifyPartner();
-    }
-  }
-
-  void MultiprocessChild() override {
-    ASSERT_NO_FATAL_FAILURE(VerifyInitial());
-
-    if (who_closes_ == kChildCloses) {
-      Close();
-    } else {
-      VerifyPartner();
-    }
-  }
-
-  WhoCloses who_closes_;
-  WhatCloses what_closes_;
-
-  DISALLOW_COPY_AND_ASSIGN(TestMultiprocessClosePipe);
-};
-
-TEST(MultiprocessDeathTest, ParentClosesReadPipe) {
-  TestMultiprocessClosePipe multiprocess(
-      TestMultiprocessClosePipe::kParentCloses,
-      TestMultiprocessClosePipe::kReadCloses);
-  multiprocess.Run();
-}
-
-TEST(MultiprocessDeathTest, ParentClosesWritePipe) {
-  TestMultiprocessClosePipe multiprocess(
-      TestMultiprocessClosePipe::kParentCloses,
-      TestMultiprocessClosePipe::kWriteCloses);
-  multiprocess.Run();
-}
-
-TEST(MultiprocessDeathTest, ParentClosesReadAndWritePipe) {
-  TestMultiprocessClosePipe multiprocess(
-      TestMultiprocessClosePipe::kParentCloses,
-      TestMultiprocessClosePipe::kReadAndWriteClose);
-  multiprocess.Run();
-}
-
-TEST(MultiprocessDeathTest, ChildClosesReadPipe) {
-  TestMultiprocessClosePipe multiprocess(
-      TestMultiprocessClosePipe::kChildCloses,
-      TestMultiprocessClosePipe::kReadCloses);
-  multiprocess.Run();
-}
-
-TEST(MultiprocessDeathTest, ChildClosesWritePipe) {
-  TestMultiprocessClosePipe multiprocess(
-      TestMultiprocessClosePipe::kChildCloses,
-      TestMultiprocessClosePipe::kWriteCloses);
-  multiprocess.Run();
-}
-
-TEST(MultiprocessDeathTest, ChildClosesReadAndWritePipe) {
-  TestMultiprocessClosePipe multiprocess(
-      TestMultiprocessClosePipe::kChildCloses,
-      TestMultiprocessClosePipe::kReadAndWriteClose);
-  multiprocess.Run();
-}
-
-}  // namespace
-}  // namespace test
-}  // namespace crashpad