Create separate Android.mk for main build targets

The runtime, compiler, dex2oat, and oatdump now are in seperate trees
to prevent dependency creep.  They can now be individually built
without rebuilding the rest of the art projects. dalvikvm and jdwpspy
were already this way. Builds in the art directory should behave as
before, building everything including tests.

Change-Id: Ic6b1151e5ed0f823c3dd301afd2b13eb2d8feb81

1 files changed, 75 insertions, 0 deletions

diff --git a/runtime/base/unix_file/fd_file.h b/runtime/base/unix_file/fd_file.h
new file mode 100644
index 0000000..2b33961
--- /dev/null
+++ b/runtime/base/unix_file/fd_file.h
@@ -0,0 +1,75 @@
+/*
+ * Copyright (C) 2009 The Android Open Source Project
+ *
+ * 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.
+ */
+
+#ifndef BASE_UNIX_FILE_FD_FILE_H_
+#define BASE_UNIX_FILE_FD_FILE_H_
+
+#include <fcntl.h>
+#include <string>
+#include "base/unix_file/random_access_file.h"
+#include "base/macros.h"
+
+namespace unix_file {
+
+// A RandomAccessFile implementation backed by a file descriptor.
+//
+// Not thread safe.
+class FdFile : public RandomAccessFile {
+ public:
+  FdFile();
+  // Creates an FdFile using the given file descriptor. Takes ownership of the
+  // file descriptor. (Use DisableAutoClose to retain ownership.)
+  explicit FdFile(int fd);
+  explicit FdFile(int fd, const std::string& path);
+
+  // Destroys an FdFile, closing the file descriptor if Close hasn't already
+  // been called. (If you care about the return value of Close, call it
+  // yourself; this is meant to handle failure cases and read-only accesses.
+  // Note though that calling Close and checking its return value is still no
+  // guarantee that data actually made it to stable storage.)
+  virtual ~FdFile();
+
+  // Opens file 'file_path' using 'flags' and 'mode'.
+  bool Open(const std::string& file_path, int flags);
+  bool Open(const std::string& file_path, int flags, mode_t mode);
+
+  // RandomAccessFile API.
+  virtual int Close();
+  virtual int64_t Read(char* buf, int64_t byte_count, int64_t offset) const;
+  virtual int SetLength(int64_t new_length);
+  virtual int64_t GetLength() const;
+  virtual int64_t Write(const char* buf, int64_t byte_count, int64_t offset);
+  virtual int Flush();
+
+  // Bonus API.
+  int Fd() const;
+  bool IsOpened() const;
+  std::string GetPath() const;
+  void DisableAutoClose();
+  bool ReadFully(void* buffer, int64_t byte_count);
+  bool WriteFully(const void* buffer, int64_t byte_count);
+
+ private:
+  int fd_;
+  std::string file_path_;
+  bool auto_close_;
+
+  DISALLOW_COPY_AND_ASSIGN(FdFile);
+};
+
+}  // namespace unix_file
+
+#endif  // BASE_UNIX_FILE_FD_FILE_H_