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authorScott Murray <scott.murray@konsulko.com>2022-06-17 20:24:27 -0400
committerScott Murray <scott.murray@konsulko.com>2022-07-04 22:29:37 +0000
commit509105d48cd1524cba1f20c4e0641d8c2d3a9cb4 (patch)
treec9739f3e7bc741efb8c2760bf0dc917e920f5824 /src/main.cpp
parentdadd3d771d5b27a455afffed8437c0a2e6db26b2 (diff)
Repurpose repository for a spiritual successor of the previous binding. The replacement is a daemon that demonstrates servicing the volume actuator from the VSS schema via VIS signals from KUKSA.val. Currently the connection to KUKSA.val is websocket based using the boost::asio framework, but the plan is to migrate to gRPC as that becomes more robust in KUKSA.val. As well, this new code will serve as the base for implementing a gRPC API to expose the full set of WirePlumber controls as was done with the previous binding. Notable changes: - New code is completely C++, partly to leverage using Boost, but also to futureproof future work with gRPC. The WirePlumber interfacing code that has been kept from the old binding is still C for now, converting it to C++ is a planned future rework. - Switch from CMake to meson for ease of development and some degree of futureproofing. - Use with systemd is assumed; behavior follows the systemd daemon guidelines barring the use of journald logging prefixes, which may be addressed with future work. A systemd unit is also installed as part of the build. - SPDX license headers using SPDX "short identifiers" are used in source files rather than the full copyright headers used in the previous codebase. This follows the direction that projects such as the Linux kernel are going in. Bug-AGL: SPEC-4409 Signed-off-by: Scott Murray <scott.murray@konsulko.com> Change-Id: Ibb7091c4354432bb094147d1419ab475486a4abc (cherry picked from commit 298bbf445a731b85cb8d5d19a3b595e8870d8701)
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diff --git a/src/main.cpp b/src/main.cpp
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+// SPDX-License-Identifier: Apache-2.0
+
+#include <iostream>
+#include <iomanip>
+#include <boost/asio/signal_set.hpp>
+#include <boost/bind.hpp>
+#include "audiomixer-service.hpp"
+
+using work_guard_type = boost::asio::executor_work_guard<boost::asio::io_context::executor_type>;
+
+int main(int argc, char** argv)
+{
+ // The io_context is required for all I/O
+ net::io_context ioc;
+
+ // Register to stop I/O context on SIGINT and SIGTERM
+ net::signal_set signals(ioc, SIGINT, SIGTERM);
+ signals.async_wait(boost::bind(&net::io_context::stop, &ioc));
+
+ // The SSL context is required, and holds certificates
+ ssl::context ctx{ssl::context::tlsv12_client};
+
+ // Launch the asynchronous operation
+ VisConfig config("agl-service-audiomixer");
+ std::make_shared<AudiomixerService>(config, ioc, ctx)->run();
+
+ // Ensure I/O context continues running even if there's no work
+ work_guard_type work_guard(ioc.get_executor());
+
+ // Run the I/O context
+ ioc.run();
+
+ return 0;
+}