/*
 * Copyright (C) 2014-2019 Amlogic, Inc. All rights reserved.
 *
 * All information contained herein is Amlogic confidential.
 *
 * This software is provided to you pursuant to Software License Agreement
 * (SLA) with Amlogic Inc ("Amlogic"). This software may be used
 * only in accordance with the terms of this agreement.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification is strictly prohibited without prior written permission from
 * Amlogic.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#include "IpcBuffer.h"

IpcBuffer::IpcBuffer(size_t size, const char *name) {
    _handle = ringbuffer_create(size, name);
}

IpcBuffer::~IpcBuffer() {
    ringbuffer_free(_handle);
    _handle = nullptr;

    if (_data_header != nullptr) {
        delete _data_header;
        _data_header = nullptr;
    }
}

void IpcBuffer::reset() {
    ringbuffer_cleanreset(_handle);

    if (_data_header != nullptr) {
        delete _data_header;
        _data_header = nullptr;
    }
}

int IpcBuffer::read(char *dst, int count) {
    return ringbuffer_read(_handle, dst, count, rbuf_mode_t::RBUF_MODE_BLOCK);
}

int IpcBuffer::peek(char *dst, int count) {
    return ringbuffer_peek(_handle, dst, count, rbuf_mode_t::RBUF_MODE_BLOCK);
}

int IpcBuffer::write(char *src, int count) {
    return ringbuffer_write(_handle, src, count, rbuf_mode_t::RBUF_MODE_BLOCK);
}

int IpcBuffer::readableCount() {
    return ringbuffer_read_avail(_handle);
}

int IpcBuffer::writeableCount() {
    return ringbuffer_write_avail(_handle);
}

const char *IpcBuffer::base() {
    return static_cast<const char *>(_handle);
}