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/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* 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 HOLDER 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.
*/
#pragma once
#include <LibIPC/IMessage.h>
class IEncoder {
public:
explicit IEncoder(IMessageBuffer& buffer)
: m_buffer(buffer)
{
}
IEncoder& operator<<(bool value)
{
return *this << (u8)value;
}
IEncoder& operator<<(u8 value)
{
m_buffer.append(value);
return *this;
}
IEncoder& operator<<(u16 value)
{
m_buffer.ensure_capacity(m_buffer.size() + 2);
m_buffer.unchecked_append((u8)value);
m_buffer.unchecked_append((u8)(value >> 8));
return *this;
}
IEncoder& operator<<(u32 value)
{
m_buffer.ensure_capacity(m_buffer.size() + 4);
m_buffer.unchecked_append((u8)value);
m_buffer.unchecked_append((u8)(value >> 8));
m_buffer.unchecked_append((u8)(value >> 16));
m_buffer.unchecked_append((u8)(value >> 24));
return *this;
}
IEncoder& operator<<(i8 value)
{
m_buffer.append((u8)value);
return *this;
}
IEncoder& operator<<(i16 value)
{
m_buffer.ensure_capacity(m_buffer.size() + 2);
m_buffer.unchecked_append((u8)value);
m_buffer.unchecked_append((u8)(value >> 8));
return *this;
}
IEncoder& operator<<(i32 value)
{
m_buffer.ensure_capacity(m_buffer.size() + 4);
m_buffer.unchecked_append((u8)value);
m_buffer.unchecked_append((u8)(value >> 8));
m_buffer.unchecked_append((u8)(value >> 16));
m_buffer.unchecked_append((u8)(value >> 24));
return *this;
}
#ifdef __serenity__
IEncoder& operator<<(size_t value)
{
return *this << (u32)value;
}
#endif
IEncoder& operator<<(float value)
{
union bits {
float as_float;
u32 as_u32;
} u;
u.as_float = value;
return *this << u.as_u32;
}
IEncoder& operator<<(const char* value)
{
return *this << StringView(value);
}
IEncoder& operator<<(const StringView& value)
{
m_buffer.append((const u8*)value.characters_without_null_termination(), value.length());
return *this;
}
private:
IMessageBuffer& m_buffer;
};
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