Multiprocess: wrap waitpid() in HANDLE_EINTR().

util/test/multiprocess.cc

 // 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/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 {
 
 using namespace testing;
 
@@ skipping 47 matching lines @@
     // 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_ = NULL;
 
     int status;
-    pid_t wait_pid = waitpid(pid, &status, 0);
+    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)) {
@@ skipping 92 matching lines @@
   if (Test::HasFailure()) {
     // Trigger the ScopedForbidReturn destructor.
     return;
   }
 
   exit(0);
 }
 
 }  // namespace test
 }  // namespace crashpad