mawww/kakoune
1
1
Fork 0
mirror of https://github.com/mawww/kakoune.git synced 2024-12-26 13:02:01 +03:00
Code Issues Projects Releases Wiki Activity

Rework binary network protocol to be more message based

Browse Source 
We cannot just write to Kakoune socket from any application anymore,
use of kak -p is mandatory, as we now have an introduction to write.
This commit is contained in:
Maxime Coste 2016-08-31 09:24:07 +01:00
parent 4d13e6fb88
commit 044a6ce860
1 changed files with 67 additions and 60 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

127
src/remote.cc
View File

@ -21,8 +21,10 @@
namespace Kakoune
{
enum class RemoteUIMsg
enum class MessageType
{
Connect,
Command,
MenuShow,
MenuSelect,
MenuHide,
@ -31,7 +33,8 @@ enum class RemoteUIMsg
Draw,
DrawStatus,
Refresh,
SetOptions
SetOptions,
Key
};
struct socket_error{};
@ -39,7 +42,11 @@ struct socket_error{};
class Message
{
public:
Message(int sock) : m_socket(sock) {}
Message(int sock, MessageType type) : m_socket(sock)
{
write(type);
}
~Message() noexcept(false)
{
if (m_stream.size() == 0)
@ -293,8 +300,7 @@ void RemoteUI::menu_show(ConstArrayView<DisplayLine> choices,
CharCoord anchor, Face fg, Face bg,
MenuStyle style)
{
Message msg(m_socket_watcher.fd());
msg.write(RemoteUIMsg::MenuShow);
Message msg{m_socket_watcher.fd(), MessageType::MenuShow};
msg.write(choices);
msg.write(anchor);
msg.write(fg);
@ -304,23 +310,20 @@ void RemoteUI::menu_show(ConstArrayView<DisplayLine> choices,
void RemoteUI::menu_select(int selected)
{
Message msg(m_socket_watcher.fd());
msg.write(RemoteUIMsg::MenuSelect);
Message msg{m_socket_watcher.fd(), MessageType::MenuSelect};
msg.write(selected);
}
void RemoteUI::menu_hide()
{
Message msg(m_socket_watcher.fd());
msg.write(RemoteUIMsg::MenuHide);
Message msg{m_socket_watcher.fd(), MessageType::MenuHide};
}
void RemoteUI::info_show(StringView title, StringView content,
CharCoord anchor, Face face,
InfoStyle style)
{
Message msg(m_socket_watcher.fd());
msg.write(RemoteUIMsg::InfoShow);
Message msg{m_socket_watcher.fd(), MessageType::InfoShow};
msg.write(title);
msg.write(content);
msg.write(anchor);
@ -330,16 +333,14 @@ void RemoteUI::info_show(StringView title, StringView content,
void RemoteUI::info_hide()
{
Message msg(m_socket_watcher.fd());
msg.write(RemoteUIMsg::InfoHide);
Message msg{m_socket_watcher.fd(), MessageType::InfoHide};
}
void RemoteUI::draw(const DisplayBuffer& display_buffer,
const Face& default_face,
const Face& padding_face)
{
Message msg(m_socket_watcher.fd());
msg.write(RemoteUIMsg::Draw);
Message msg{m_socket_watcher.fd(), MessageType::Draw};
msg.write(display_buffer);
msg.write(default_face);
msg.write(padding_face);
@ -349,8 +350,7 @@ void RemoteUI::draw_status(const DisplayLine& status_line,
const DisplayLine& mode_line,
const Face& default_face)
{
Message msg(m_socket_watcher.fd());
msg.write(RemoteUIMsg::DrawStatus);
Message msg{m_socket_watcher.fd(), MessageType::DrawStatus};
msg.write(status_line);
msg.write(mode_line);
msg.write(default_face);
@ -358,15 +358,13 @@ void RemoteUI::draw_status(const DisplayLine& status_line,
void RemoteUI::refresh(bool force)
{
Message msg(m_socket_watcher.fd());
msg.write(RemoteUIMsg::Refresh);
Message msg{m_socket_watcher.fd(), MessageType::Refresh};
msg.write(force);
}
void RemoteUI::set_ui_options(const Options& options)
{
Message msg(m_socket_watcher.fd());
msg.write(RemoteUIMsg::SetOptions);
Message msg{m_socket_watcher.fd(), MessageType::SetOptions};
msg.write(options);
}
@ -379,7 +377,12 @@ Key RemoteUI::get_key()
{
try
{
Key key = read<Key>(m_socket_watcher.fd());
const int sock = m_socket_watcher.fd();
const auto msg = read<MessageType>(sock);
if (msg != MessageType::Key)
throw client_removed{ false };
Key key = read<Key>(sock);
if (key.modifiers == Key::Modifiers::Resize)
m_dimensions = key.coord();
return key;
@ -441,9 +444,8 @@ RemoteClient::RemoteClient(StringView session, std::unique_ptr<UserInterface>&&
int sock = connect_to(session);
{
Message msg(sock);
msg.write(init_command.data(), (int)init_command.length());
msg.write((char)0);
Message msg{sock, MessageType::Connect};
msg.write(init_command);
msg.write(m_ui->dimensions());
msg.write(env_vars);
}
@ -464,10 +466,10 @@ void RemoteClient::process_available_messages()
void RemoteClient::process_next_message()
{
int socket = m_socket_watcher->fd();
RemoteUIMsg msg = read<RemoteUIMsg>(socket);
const auto msg = read<MessageType>(socket);
switch (msg)
{
case RemoteUIMsg::MenuShow:
case MessageType::MenuShow:
{
auto choices = read_vector<DisplayLine>(socket);
auto anchor = read<CharCoord>(socket);
@ -477,13 +479,13 @@ void RemoteClient::process_next_message()
m_ui->menu_show(choices, anchor, fg, bg, style);
break;
}
case RemoteUIMsg::MenuSelect:
case MessageType::MenuSelect:
m_ui->menu_select(read<int>(socket));
break;
case RemoteUIMsg::MenuHide:
case MessageType::MenuHide:
m_ui->menu_hide();
break;
case RemoteUIMsg::InfoShow:
case MessageType::InfoShow:
{
auto title = read<String>(socket);
auto content = read<String>(socket);
@ -493,10 +495,10 @@ void RemoteClient::process_next_message()
m_ui->info_show(title, content, anchor, face, style);
break;
}
case RemoteUIMsg::InfoHide:
case MessageType::InfoHide:
m_ui->info_hide();
break;
case RemoteUIMsg::Draw:
case MessageType::Draw:
{
auto display_buffer = read<DisplayBuffer>(socket);
auto default_face = read<Face>(socket);
@ -504,7 +506,7 @@ void RemoteClient::process_next_message()
m_ui->draw(display_buffer, default_face, padding_face);
break;
}
case RemoteUIMsg::DrawStatus:
case MessageType::DrawStatus:
{
auto status_line = read<DisplayLine>(socket);
auto mode_line = read<DisplayLine>(socket);
@ -512,18 +514,20 @@ void RemoteClient::process_next_message()
m_ui->draw_status(status_line, mode_line, default_face);
break;
}
case RemoteUIMsg::Refresh:
case MessageType::Refresh:
m_ui->refresh(read<bool>(socket));
break;
case RemoteUIMsg::SetOptions:
case MessageType::SetOptions:
m_ui->set_ui_options(read_idmap<String, MemoryDomain::Options>(socket));
break;
default:
kak_assert(false);
}
}
void RemoteClient::write_next_key()
{
Message msg(m_socket_watcher->fd());
Message msg(m_socket_watcher->fd(), MessageType::Key);
// do that before checking dimensions as get_key may
// handle a resize event.
msg.write(m_ui->get_key());
@ -533,7 +537,8 @@ void send_command(StringView session, StringView command)
{
int sock = connect_to(session);
auto close_sock = on_scope_end([sock]{ close(sock); });
write(sock, command);
Message msg{sock, MessageType::Command};
msg.write(command);
}
@ -557,46 +562,48 @@ public:
private:
void handle_available_input()
{
const int socket = m_socket_watcher.fd();
do
const int sock = m_socket_watcher.fd();
const auto msg = read<MessageType>(sock);
switch (msg)
{
char c;
int res = ::read(socket, &c, 1);
if (res <= 0)
case MessageType::Connect:
{
if (not m_buffer.empty()) try
auto init_command = read<String>(sock);
auto dimensions = read<CharCoord>(sock);
auto env_vars = read_idmap<String, MemoryDomain::EnvVars>(sock);
std::unique_ptr<UserInterface> ui{new RemoteUI{sock, dimensions}};
ClientManager::instance().create_client(std::move(ui),
std::move(env_vars),
init_command);
Server::instance().remove_accepter(this);
return;
}
case MessageType::Command:
{
auto command = read<String>(sock);
if (not command.empty()) try
{
Context context{Context::EmptyContextFlag{}};
CommandManager::instance().execute(m_buffer, context);
CommandManager::instance().execute(command, context);
}
catch (runtime_error& e)
{
write_to_debug_buffer(format("error running command '{}': {}",
m_buffer, e.what()));
command, e.what()));
}
catch (client_removed&) {}
close(socket);
close(sock);
Server::instance().remove_accepter(this);
return;
}
if (c == 0) // end of initial command stream, go to interactive ui
{
CharCoord dimensions = read<CharCoord>(socket);
EnvVarMap env_vars = read_idmap<String, MemoryDomain::EnvVars>(socket);
std::unique_ptr<UserInterface> ui{new RemoteUI{socket, dimensions}};
ClientManager::instance().create_client(std::move(ui),
std::move(env_vars),
m_buffer);
default:
write_to_debug_buffer("Invalid introduction message received");
close(sock);
Server::instance().remove_accepter(this);
return;
}
else
m_buffer += c;
break;
}
while (fd_readable(socket));
}
String m_buffer;
FDWatcher m_socket_watcher;
};