210   MemoryBufferMMapFile(bool RequiresNullTerminator, int FD, uint64_t Len,  in MemoryBufferMMapFile()  argument
212       : MFR(FD, sys::fs::mapped_file_region::readonly,  in MemoryBufferMMapFile()
236 getMemoryBufferForStream(int FD, const Twine &BufferName) {  in getMemoryBufferForStream()  argument
243     ReadBytes = read(FD, Buffer.end(), ChunkSize);  in getMemoryBufferForStream()
263 getOpenFileImpl(int FD, const Twine &Filename, uint64_t FileSize,
270   int FD;  in getFileAux()  local
271   std::error_code EC = sys::fs::openFileForRead(Filename, FD);  in getFileAux()
276       getOpenFileImpl(FD, Filename, FileSize, MapSize, Offset,  in getFileAux()
278   close(FD);  in getFileAux()
282 static bool shouldUseMmap(int FD,  in shouldUseMmap()  argument
310     if (sys::fs::status(FD, Status))  in shouldUseMmap()
339 getOpenFileImpl(int FD, const Twine &Filename, uint64_t FileSize,  in getOpenFileImpl()  argument
350       std::error_code EC = sys::fs::status(FD, Status);  in getOpenFileImpl()
360         return getMemoryBufferForStream(FD, Filename);  in getOpenFileImpl()
367   if (shouldUseMmap(FD, FileSize, MapSize, Offset, RequiresNullTerminator,  in getOpenFileImpl()
372         MemoryBufferMMapFile(RequiresNullTerminator, FD, MapSize, Offset, EC));  in getOpenFileImpl()
389   if (lseek(FD, Offset, SEEK_SET) == -1)  in getOpenFileImpl()
395     ssize_t NumRead = ::pread(FD, BufPtr, BytesLeft, MapSize-BytesLeft+Offset);  in getOpenFileImpl()
397     ssize_t NumRead = ::read(FD, BufPtr, BytesLeft);  in getOpenFileImpl()
417 MemoryBuffer::getOpenFile(int FD, const Twine &Filename, uint64_t FileSize,  in getOpenFile()  argument
419   return getOpenFileImpl(FD, Filename, FileSize, FileSize, 0,  in getOpenFile()
424 MemoryBuffer::getOpenFileSlice(int FD, const Twine &Filename, uint64_t MapSize,  in getOpenFileSlice()  argument
427   return getOpenFileImpl(FD, Filename, -1, MapSize, Offset, false,  in getOpenFileSlice()