android/android-emu/android/utils/stream.h

// Copyright 2015 The Android Open Source Project
//
// This software is licensed under the terms of the GNU General Public
// License version 2, as published by the Free Software Foundation, and
// may be copied, distributed, and modified under those terms.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.

#pragma once

#include "android/utils/compiler.h"

#include <inttypes.h>
#include <sys/types.h>

ANDROID_BEGIN_HEADER

// Opaque declaration for an object modelling a stream of bytes.
// This really is backed by an android::base::Stream implementation.
typedef struct Stream Stream;

ssize_t stream_read(Stream* stream, void* buffer, size_t size);
ssize_t stream_write(Stream* stream, const void* buffer, size_t size);

void stream_put_byte(Stream* stream, int v);
void stream_put_be16(Stream* stream, uint16_t v);
void stream_put_be32(Stream* stream, uint32_t v);
void stream_put_be64(Stream* stream, uint64_t v);

uint8_t stream_get_byte(Stream* stream);
uint16_t stream_get_be16(Stream* stream);
uint32_t stream_get_be32(Stream* stream);
uint64_t stream_get_be64(Stream* stream);

void stream_put_float(Stream* stream, float v);
float stream_get_float(Stream* stream);

void stream_put_string(Stream* stream, const char* str);

// Return a heap-allocated string, or NULL if empty string or error.
// Caller must free() the resturned value.
char* stream_get_string(Stream* stream);

void stream_free(Stream* stream);

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