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https://github.com/Atmosphere-NX/Atmosphere-libs.git
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118 lines
4.0 KiB
C++
118 lines
4.0 KiB
C++
/*
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* Copyright (c) Atmosphère-NX
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <stratosphere.hpp>
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#include "lm_event_log_transmitter.hpp"
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#include "lm_log_buffer.hpp"
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#include "../impl/lm_log_packet_header.hpp"
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#include "../impl/lm_log_packet_transmitter.hpp"
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namespace ams::lm::srv {
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namespace {
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constexpr inline size_t TransmitterBufferAlign = alignof(impl::LogPacketHeader);
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constexpr inline size_t TransmitterBufferSizeForSessionInfo = impl::LogPacketHeaderSize + 3;
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constexpr inline size_t TransmitterBufferSizeForDropCount = impl::LogPacketHeaderSize + 10;
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bool DefaultFlushFunction(const u8 *data, size_t size) {
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return LogBuffer::GetDefaultInstance().TryPush(data, size);
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}
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}
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EventLogTransmitter &EventLogTransmitter::GetDefaultInstance() {
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AMS_FUNCTION_LOCAL_STATIC_CONSTINIT(EventLogTransmitter, s_default_event_log_transmitter, DefaultFlushFunction);
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return s_default_event_log_transmitter;
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}
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bool EventLogTransmitter::PushLogSessionBegin(u64 process_id) {
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/* Create a transmitter. */
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alignas(TransmitterBufferAlign) u8 buffer[TransmitterBufferSizeForSessionInfo];
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impl::LogPacketTransmitter transmitter(buffer, sizeof(buffer), m_flush_function, static_cast<u8>(diag::LogSeverity_Info), 0, process_id, true, true);
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/* Push session begin. */
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transmitter.PushLogSessionBegin();
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/* Flush the data. */
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const bool success = transmitter.Flush(true);
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/* Update drop count. */
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if (!success) {
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++m_log_packet_drop_count;
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}
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return success;
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}
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bool EventLogTransmitter::PushLogSessionEnd(u64 process_id) {
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/* Create a transmitter. */
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alignas(TransmitterBufferAlign) u8 buffer[TransmitterBufferSizeForSessionInfo];
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impl::LogPacketTransmitter transmitter(buffer, sizeof(buffer), m_flush_function, static_cast<u8>(diag::LogSeverity_Info), 0, process_id, true, true);
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/* Push session end. */
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transmitter.PushLogSessionEnd();
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/* Flush the data. */
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const bool success = transmitter.Flush(true);
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/* Update drop count. */
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if (!success) {
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++m_log_packet_drop_count;
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}
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return success;
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}
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bool EventLogTransmitter::PushLogPacketDropCountIfExists() {
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/* Acquire exclusive access. */
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std::scoped_lock lk(m_log_packet_drop_count_mutex);
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/* If we have no dropped packets, nothing to push. */
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if (m_log_packet_drop_count == 0) {
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return true;
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}
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/* Create a transmitter. */
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alignas(TransmitterBufferAlign) u8 buffer[TransmitterBufferSizeForDropCount];
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impl::LogPacketTransmitter transmitter(buffer, sizeof(buffer), m_flush_function, static_cast<u8>(diag::LogSeverity_Info), 0, 0, true, true);
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/* Push log packet drop count. */
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transmitter.PushLogPacketDropCount(m_log_packet_drop_count);
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/* Flush the data. */
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const bool success = transmitter.Flush(true);
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/* Update drop count. */
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if (success) {
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m_log_packet_drop_count = 0;
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} else {
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++m_log_packet_drop_count;
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}
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return success;
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}
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void EventLogTransmitter::IncreaseLogPacketDropCount() {
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/* Acquire exclusive access. */
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std::scoped_lock lk(m_log_packet_drop_count_mutex);
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/* Increase the dropped packet count. */
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++m_log_packet_drop_count;
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}
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}
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