POSIX: don't spawn zombies.

base/process_util.h

 // Copyright (c) 2009 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // This file/namespace contains utility functions for enumerating, ending and
 // computing statistics of processes.
 
 #ifndef BASE_PROCESS_UTIL_H_
 #define BASE_PROCESS_UTIL_H_
 
@@ skipping 154 matching lines @@
 // Attempts to kill the process identified by the given process
 // entry structure, giving it the specified exit code. If |wait| is true, wait
 // for the process to be actually terminated before returning.
 // Returns true if this is successful, false otherwise.
 bool KillProcess(ProcessHandle process, int exit_code, bool wait);
 #if defined(OS_WIN)
 bool KillProcessById(ProcessId process_id, int exit_code, bool wait);
 #endif
 
 // Get the termination status (exit code) of the process and return true if the
-// status indicates the process crashed.  It is an error to call this if the
-// process hasn't terminated yet.
-bool DidProcessCrash(ProcessHandle handle);
+// status indicates the process crashed. |child_exited| is set to true iff the
+// child process has terminated. (|child_exited| may be NULL.)
+//
+// On Windows, it is an error to call this if the process hasn't terminated
+// yet. On POSIX, |child_exited| is set correctly since we detect terminate in
+// a different manner on POSIX.
+bool DidProcessCrash(bool* child_exited, ProcessHandle handle);
 
 // Waits for process to exit. In POSIX systems, if the process hasn't been
 // signaled then puts the exit code in |exit_code|; otherwise it's considered
 // a failure. On Windows |exit_code| is always filled. Returns true on success,
 // and closes |handle| in any case.
 bool WaitForExitCode(ProcessHandle handle, int* exit_code);
 
 // Wait for all the processes based on the named executable to exit.  If filter
 // is non-null, then only processes selected by the filter are waited on.
 // Returns after all processes have exited or wait_milliseconds have expired.
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 // overflow. Has no effect if the OS doesn't provide the necessary facility.
 void EnableTerminationOnHeapCorruption();
 
 // If supported on the platform, and the user has sufficent rights, increase
 // the current process's scheduling priority to a high priority.
 void RaiseProcessToHighPriority();
 
 }  // namespace base
 
 #endif  // BASE_PROCESS_UTIL_H_