Atmosphere/libraries/libstratosphere/source/lm/srv/lm_custom_sink_buffer.cpp

61 lines
1.7 KiB
C++

/*
* Copyright (c) Atmosphère-NX
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope 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.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <stratosphere.hpp>
#include "lm_custom_sink_buffer.hpp"
namespace ams::lm::srv {
bool CustomSinkBuffer::TryPush(const void *data, size_t size) {
/* Check pre-conditions. */
AMS_ASSERT(size <= m_buffer_size);
AMS_ASSERT(data || size == 0);
/* If we have nothing to push, succeed. */
if (size == 0) {
return true;
}
/* Check that we can push the data. */
if (size > m_buffer_size - m_used_buffer_size) {
return false;
}
/* Push the data. */
std::memcpy(m_buffer + m_used_buffer_size, data, size);
m_used_buffer_size += size;
return true;
}
bool CustomSinkBuffer::TryFlush() {
/* Check that we have data to flush. */
if (m_used_buffer_size == 0) {
return false;
}
/* Try to flush the data. */
if (!m_flush_function(m_buffer, m_used_buffer_size)) {
return false;
}
/* Clear our used size. */
m_used_buffer_size = 0;
return true;
}
}