1 files changed, 0 insertions, 176 deletions
diff --git a/test/util/multiprocess_util.cc b/test/util/multiprocess_util.cc
deleted file mode 100644
index a6b0de24b..000000000
--- a/test/util/multiprocess_util.cc
+++ /dev/null
@@ -1,176 +0,0 @@
-// Copyright 2018 The gVisor Authors.
-//
-// 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 "test/util/multiprocess_util.h"
-
-#include <asm/unistd.h>
-#include <errno.h>
-#include <fcntl.h>
-#include <signal.h>
-#include <sys/prctl.h>
-#include <unistd.h>
-
-#include "absl/strings/str_cat.h"
-#include "test/util/cleanup.h"
-#include "test/util/file_descriptor.h"
-#include "test/util/posix_error.h"
-#include "test/util/save_util.h"
-#include "test/util/test_util.h"
-
-namespace gvisor {
-namespace testing {
-
-namespace {
-
-// exec_fn wraps a variant of the exec family, e.g. execve or execveat.
-PosixErrorOr<Cleanup> ForkAndExecHelper(const std::function<void()>& exec_fn,
-                                        const std::function<void()>& fn,
-                                        pid_t* child, int* execve_errno) {
-  int pfds[2];
-  int ret = pipe2(pfds, O_CLOEXEC);
-  if (ret < 0) {
-    return PosixError(errno, "pipe failed");
-  }
-  FileDescriptor rfd(pfds[0]);
-  FileDescriptor wfd(pfds[1]);
-
-  int parent_stdout = dup(STDOUT_FILENO);
-  if (parent_stdout < 0) {
-    return PosixError(errno, "dup stdout");
-  }
-  int parent_stderr = dup(STDERR_FILENO);
-  if (parent_stdout < 0) {
-    return PosixError(errno, "dup stderr");
-  }
-
-  pid_t pid = fork();
-  if (pid < 0) {
-    return PosixError(errno, "fork failed");
-  } else if (pid == 0) {
-    // Child.
-    rfd.reset();
-    if (dup2(parent_stdout, STDOUT_FILENO) < 0) {
-      _exit(3);
-    }
-    if (dup2(parent_stderr, STDERR_FILENO) < 0) {
-      _exit(4);
-    }
-    close(parent_stdout);
-    close(parent_stderr);
-
-    // Clean ourself up in case the parent doesn't.
-    if (prctl(PR_SET_PDEATHSIG, SIGKILL)) {
-      _exit(3);
-    }
-
-    if (fn) {
-      fn();
-    }
-
-    // Call variant of exec function.
-    exec_fn();
-
-    int error = errno;
-    if (WriteFd(pfds[1], &error, sizeof(error)) != sizeof(error)) {
-      // We can't do much if the write fails, but we can at least exit with a
-      // different code.
-      _exit(2);
-    }
-    _exit(1);
-  }
-
-  // Parent.
-  if (child) {
-    *child = pid;
-  }
-
-  auto cleanup = Cleanup([pid] {
-    kill(pid, SIGKILL);
-    RetryEINTR(waitpid)(pid, nullptr, 0);
-  });
-
-  wfd.reset();
-
-  int read_errno;
-  ret = ReadFd(rfd.get(), &read_errno, sizeof(read_errno));
-  if (ret == 0) {
-    // Other end of the pipe closed, execve must have succeeded.
-    read_errno = 0;
-  } else if (ret < 0) {
-    return PosixError(errno, "read pipe failed");
-  } else if (ret != sizeof(read_errno)) {
-    return PosixError(EPIPE, absl::StrCat("pipe read wrong size ", ret));
-  }
-
-  if (execve_errno) {
-    *execve_errno = read_errno;
-  }
-
-  return std::move(cleanup);
-}
-
-}  // namespace
-
-PosixErrorOr<Cleanup> ForkAndExec(const std::string& filename,
-                                  const ExecveArray& argv,
-                                  const ExecveArray& envv,
-                                  const std::function<void()>& fn, pid_t* child,
-                                  int* execve_errno) {
-  char* const* argv_data = argv.get();
-  char* const* envv_data = envv.get();
-  const std::function<void()> exec_fn = [=] {
-    execve(filename.c_str(), argv_data, envv_data);
-  };
-  return ForkAndExecHelper(exec_fn, fn, child, execve_errno);
-}
-
-PosixErrorOr<Cleanup> ForkAndExecveat(const int32_t dirfd,
-                                      const std::string& pathname,
-                                      const ExecveArray& argv,
-                                      const ExecveArray& envv, const int flags,
-                                      const std::function<void()>& fn,
-                                      pid_t* child, int* execve_errno) {
-  char* const* argv_data = argv.get();
-  char* const* envv_data = envv.get();
-  const std::function<void()> exec_fn = [=] {
-    syscall(__NR_execveat, dirfd, pathname.c_str(), argv_data, envv_data,
-            flags);
-  };
-  return ForkAndExecHelper(exec_fn, fn, child, execve_errno);
-}
-
-PosixErrorOr<int> InForkedProcess(const std::function<void()>& fn) {
-  pid_t pid = fork();
-  if (pid == 0) {
-    fn();
-    TEST_CHECK_MSG(!::testing::Test::HasFailure(),
-                   "EXPECT*/ASSERT* failed. These are not async-signal-safe "
-                   "and must not be called from fn.");
-    _exit(0);
-  }
-  MaybeSave();
-  if (pid < 0) {
-    return PosixError(errno, "fork failed");
-  }
-
-  int status;
-  if (waitpid(pid, &status, 0) < 0) {
-    return PosixError(errno, "waitpid failed");
-  }
-
-  return status;
-}
-
-}  // namespace testing
-}  // namespace gvisor