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mux: optimize many accesses to O(log(n)) vs Nintendo's O(log(n)^2)

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This commit is contained in:
Michael Scire 2021-02-09 07:51:02 -08:00 committed by SciresM
parent 4cb6c63516
commit 00ab210e66
3 changed files with 10 additions and 12 deletions
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2
libraries/libstratosphere/source/htc/server/driver/htc_htclow_driver.cpp
View file

@ -31,7 +31,7 @@ namespace ams::htc::server::driver {
}
void HtclowDriver::WaitTask(u32 task_id) {
os::WaitEvent(m_manager->GeTaskEvent(task_id));
os::WaitEvent(m_manager->GetTaskEvent(task_id));
}
void HtclowDriver::SetDisconnectionEmulationEnabled(bool en) {

16
libraries/libstratosphere/source/htclow/mux/htclow_mux.cpp
View file

@ -35,7 +35,7 @@ namespace ams::htclow::mux {
/* Set all entries in our map. */
/* NOTE: Nintendo does this highly inefficiently... */
for (auto &pair : m_channel_impl_map.GetMap()) {
m_channel_impl_map[pair.first].SetVersion(m_version);
m_channel_impl_map[pair.second].SetVersion(m_version);
}
}
@ -67,10 +67,8 @@ namespace ams::htclow::mux {
std::scoped_lock lk(m_mutex);
/* Process for the channel. */
if (m_channel_impl_map.Exists(header.channel)) {
R_TRY(this->CheckChannelExist(header.channel));
return m_channel_impl_map[header.channel].ProcessReceivePacket(header, body, body_size);
if (auto it = m_channel_impl_map.GetMap().find(header.channel); it != m_channel_impl_map.GetMap().end()) {
return m_channel_impl_map[it->second].ProcessReceivePacket(header, body, body_size);
} else {
if (header.packet_type == PacketType_Data || header.packet_type == PacketType_MaxData) {
this->SendErrorPacket(header.channel);
@ -89,7 +87,7 @@ namespace ams::htclow::mux {
/* Iterate the map, checking for valid packet each time. */
for (auto &pair : map) {
/* Get the current channel impl. */
auto &channel_impl = m_channel_impl_map.GetChannelImpl(pair.second);
auto &channel_impl = m_channel_impl_map[pair.second];
/* Check for an error packet. */
/* NOTE: it's unclear why Nintendo does this every iteration of the loop... */
@ -115,8 +113,8 @@ namespace ams::htclow::mux {
/* Remove the packet from the appropriate source. */
if (header.packet_type == PacketType_Error) {
m_global_send_buffer.RemovePacket();
} else if (m_channel_impl_map.Exists(header.channel)) {
m_channel_impl_map[header.channel].RemovePacket(header);
} else if (auto it = m_channel_impl_map.GetMap().find(header.channel); it != m_channel_impl_map.GetMap().end()) {
m_channel_impl_map[it->second].RemovePacket(header);
}
/* Notify the task manager. */
@ -130,7 +128,7 @@ namespace ams::htclow::mux {
/* Update the state of all channels in our map. */
/* NOTE: Nintendo does this highly inefficiently... */
for (auto pair : m_channel_impl_map.GetMap()) {
m_channel_impl_map[pair.first].UpdateState();
m_channel_impl_map[pair.second].UpdateState();
}
}

4
libraries/libstratosphere/source/htclow/mux/htclow_mux_channel_impl_map.hpp
View file

@ -52,8 +52,8 @@ namespace ams::htclow::mux {
return m_map;
}
ChannelImpl &operator[](impl::ChannelInternalType channel) {
return this->GetChannelImpl(channel);
ChannelImpl &operator[](int index) {
return this->GetChannelImpl(index);
}
};