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Move event handling logic to a dedicated class

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Now all pieces are in place to allow handling events over multiple
socket connections.
This commit is contained in:
Robbert van der Helm
2020-10-25 23:08:11 +01:00
parent 54ed69c408
commit 74c3cab046
8 changed files with 581 additions and 544 deletions
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src/common/communication.cpp
+88 -73
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@@ -28,79 +28,6 @@ namespace fs = boost::filesystem;
constexpr char alphanumeric_characters[] =
"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
Sockets::Sockets(boost::asio::io_context& io_context,
const boost::filesystem::path& endpoint_base_dir,
bool listen)
: base_dir(endpoint_base_dir),
io_context(io_context),
host_vst_dispatch(io_context),
host_vst_dispatch_midi_events(io_context),
vst_host_callback(io_context),
host_vst_parameters(io_context),
host_vst_process_replacing(io_context),
host_vst_control(io_context),
host_vst_dispatch_endpoint(
(base_dir / "host_vst_dispatch.sock").string()),
host_vst_dispatch_midi_events_endpoint(
(base_dir / "host_vst_dispatch_midi_events.sock").string()),
vst_host_callback_endpoint(
(base_dir / "vst_host_callback.sock").string()),
host_vst_parameters_endpoint(
(base_dir / "host_vst_parameters.sock").string()),
host_vst_process_replacing_endpoint(
(base_dir / "host_vst_process_replacing.sock").string()),
host_vst_control_endpoint((base_dir / "host_vst_control.sock").string()) {
if (listen) {
fs::create_directory(base_dir);
acceptors = Acceptors{
.host_vst_dispatch{io_context, host_vst_dispatch_endpoint},
.host_vst_dispatch_midi_events{
io_context, host_vst_dispatch_midi_events_endpoint},
.vst_host_callback{io_context, vst_host_callback_endpoint},
.host_vst_parameters{io_context, host_vst_parameters_endpoint},
.host_vst_process_replacing{io_context,
host_vst_process_replacing_endpoint},
.host_vst_control{io_context, host_vst_control_endpoint},
};
}
}
Sockets::~Sockets() {
// Only clean if we're the ones who have created these files, although it
// should not cause any harm to also do this on the Wine side
if (acceptors) {
try {
fs::remove_all(base_dir);
} catch (const fs::filesystem_error&) {
// There should not be any filesystem errors since only one side
// removes the files, but if we somehow can't delete the file then
// we can just silently ignore this
}
}
}
void Sockets::connect() {
if (acceptors) {
acceptors->host_vst_dispatch.accept(host_vst_dispatch);
acceptors->host_vst_dispatch_midi_events.accept(
host_vst_dispatch_midi_events);
acceptors->vst_host_callback.accept(vst_host_callback);
acceptors->host_vst_parameters.accept(host_vst_parameters);
acceptors->host_vst_process_replacing.accept(
host_vst_process_replacing);
acceptors->host_vst_control.accept(host_vst_control);
} else {
host_vst_dispatch.connect(host_vst_dispatch_endpoint);
host_vst_dispatch_midi_events.connect(
host_vst_dispatch_midi_events_endpoint);
vst_host_callback.connect(vst_host_callback_endpoint);
host_vst_parameters.connect(host_vst_parameters_endpoint);
host_vst_process_replacing.connect(host_vst_process_replacing_endpoint);
host_vst_control.connect(host_vst_control_endpoint);
}
}
EventPayload DefaultDataConverter::read(const int /*opcode*/,
const int /*index*/,
const intptr_t /*value*/,
@@ -154,6 +81,94 @@ intptr_t DefaultDataConverter::return_value(const int /*opcode*/,
return original;
}
EventHandler::EventHandler(
boost::asio::io_context& io_context,
boost::asio::local::stream_protocol::endpoint endpoint,
bool listen)
: endpoint(endpoint), socket(io_context) {
if (listen) {
fs::create_directories(fs::path(endpoint.path()).parent_path());
acceptor.emplace(io_context, endpoint);
}
}
void EventHandler::connect() {
if (acceptor) {
acceptor->accept(socket);
} else {
socket.connect(endpoint);
}
}
void EventHandler::close() {
socket.shutdown(boost::asio::local::stream_protocol::socket::shutdown_both);
socket.close();
}
Sockets::Sockets(boost::asio::io_context& io_context,
const boost::filesystem::path& endpoint_base_dir,
bool listen)
: base_dir(endpoint_base_dir),
host_vst_dispatch(io_context,
(base_dir / "host_vst_dispatch.sock").string(),
listen),
host_vst_dispatch_midi_events(
io_context,
(base_dir / "host_vst_dispatch_midi_events.sock").string(),
listen),
vst_host_callback(io_context,
(base_dir / "vst_host_callback.sock").string(),
listen),
host_vst_parameters(io_context),
host_vst_process_replacing(io_context),
host_vst_control(io_context),
host_vst_parameters_endpoint(
(base_dir / "host_vst_parameters.sock").string()),
host_vst_process_replacing_endpoint(
(base_dir / "host_vst_process_replacing.sock").string()),
host_vst_control_endpoint((base_dir / "host_vst_control.sock").string()) {
if (listen) {
fs::create_directories(base_dir);
acceptors = Acceptors{
.host_vst_parameters{io_context, host_vst_parameters_endpoint},
.host_vst_process_replacing{io_context,
host_vst_process_replacing_endpoint},
.host_vst_control{io_context, host_vst_control_endpoint},
};
}
}
Sockets::~Sockets() {
// Only clean if we're the ones who have created these files, although it
// should not cause any harm to also do this on the Wine side
if (acceptors) {
try {
fs::remove_all(base_dir);
} catch (const fs::filesystem_error&) {
// There should not be any filesystem errors since only one side
// removes the files, but if we somehow can't delete the file then
// we can just silently ignore this
}
}
}
void Sockets::connect() {
host_vst_dispatch.connect();
host_vst_dispatch_midi_events.connect();
vst_host_callback.connect();
if (acceptors) {
acceptors->host_vst_parameters.accept(host_vst_parameters);
acceptors->host_vst_process_replacing.accept(
host_vst_process_replacing);
acceptors->host_vst_control.accept(host_vst_control);
} else {
host_vst_parameters.connect(host_vst_parameters_endpoint);
host_vst_process_replacing.connect(host_vst_process_replacing_endpoint);
host_vst_control.connect(host_vst_control_endpoint);
}
}
boost::filesystem::path generate_endpoint_base(const std::string& plugin_name) {
fs::path temp_directory = get_temporary_directory();