Rebased PNaCl localmods in LLVM to 223109

lib/Support/LockFileManager.cpp

 //===--- LockFileManager.cpp - File-level Locking Utility------------------===//
 //
 //                     The LLVM Compiler Infrastructure
 //
 // This file is distributed under the University of Illinois Open Source
 // License. See LICENSE.TXT for details.
 //
 //===----------------------------------------------------------------------===//
 #include "llvm/Support/LockFileManager.h"
 #include "llvm/ADT/STLExtras.h"
 #include "llvm/ADT/StringExtras.h"
 #include "llvm/Support/Errc.h"
 #include "llvm/Support/FileSystem.h"
 #include "llvm/Support/MemoryBuffer.h"
 #include "llvm/Support/Path.h"
 #include "llvm/Support/raw_ostream.h"
 #include <sys/stat.h>
 #include <sys/types.h>
 #if LLVM_ON_WIN32
 #include <windows.h>
 #endif
 #if LLVM_ON_UNIX
 #include <unistd.h>
 #endif
 using namespace llvm;
 
+// @LOCALMOD-BEGIN
+#if !defined(PNACL_BROWSER_TRANSLATOR)
+// @LOCALMOD-END
+
 /// \brief Attempt to read the lock file with the given name, if it exists.
 ///
 /// \param LockFileName The name of the lock file to read.
 ///
 /// \returns The process ID of the process that owns this lock file
 Optional<std::pair<std::string, int> >
 LockFileManager::readLockFile(StringRef LockFileName) {
   // Read the owning host and PID out of the lock file. If it appears that the
   // owning process is dead, the lock file is invalid.
   ErrorOr<std::unique_ptr<MemoryBuffer>> MBOrErr =
@@ skipping 14 matching lines @@
     if (processStillExecuting(Owner.first, Owner.second))
       return Owner;
   }
 
   // Delete the lock file. It's invalid anyway.
   sys::fs::remove(LockFileName);
   return None;
 }
 
 bool LockFileManager::processStillExecuting(StringRef Hostname, int PID) {
-#if LLVM_ON_UNIX && !defined(__ANDROID__)
+// @LOCALMOD-BEGIN
+#if LLVM_ON_UNIX && !defined(__ANDROID__) && !defined(__native_client__)
+// @LOCALMOD-END
   char MyHostname[256];
   MyHostname[255] = 0;
   MyHostname[0] = 0;
   gethostname(MyHostname, 255);
   // Check whether the process is dead. If so, we're done.
   if (MyHostname == Hostname && getsid(PID) == -1 && errno == ESRCH)
     return false;
 #endif
 
   return true;
@@ skipping 184 matching lines @@
 #if LLVM_ON_WIN32
            Interval < MaxSeconds * 1000
 #else
            Interval.tv_sec < (time_t)MaxSeconds
 #endif
            );
 
   // Give up.
   return Res_Timeout;
 }
+
+#endif // __native_client__ @LOCALMOD