upload android base code part6

android/device/generic/goldfish-opengl/system/OpenglSystemCommon/QemuPipeStream.h

@@ -0,0 +1,52 @@
+/*
+* Copyright (C) 2011 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 __QEMU_PIPE_STREAM_H
+#define __QEMU_PIPE_STREAM_H
+
+/* This file implements an IOStream that uses a QEMU fast-pipe
+ * to communicate with the emulator's 'opengles' service. See
+ * <hardware/qemu_pipe.h> for more details.
+ */
+#include <stdlib.h>
+#include "IOStream.h"
+
+class QemuPipeStream : public IOStream {
+public:
+    typedef enum { ERR_INVALID_SOCKET = -1000 } QemuPipeStreamError;
+
+    explicit QemuPipeStream(size_t bufsize = 10000);
+    ~QemuPipeStream();
+    int connect(void);
+
+    virtual void *allocBuffer(size_t minSize);
+    virtual int commitBuffer(size_t size);
+    virtual const unsigned char *readFully( void *buf, size_t len);
+    virtual const unsigned char *read( void *buf, size_t *inout_len);
+
+    bool valid() { return m_sock >= 0; }
+    int recv(void *buf, size_t len);
+
+    virtual int writeFully(const void *buf, size_t len);
+
+    int getSocket() const;
+private:
+    int m_sock;
+    size_t m_bufsize;
+    unsigned char *m_buf;
+    QemuPipeStream(int sock, size_t bufSize);
+};
+
+#endif