blob: 64d7ec4627d57d0a71fd3447cc387c99384f2a9e [file] [log] [blame] [edit]
// Copyright 2018 The Fuchsia Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include <fcntl.h>
#include <fuchsia/io/cpp/fidl.h>
#include <fuchsia/vulkan/loader/cpp/fidl.h>
#include <lib/async-loop/cpp/loop.h>
#include <lib/async-loop/default.h>
#include <lib/fdio/directory.h>
#include <lib/fdio/io.h>
#include <lib/fidl/cpp/binding_set.h>
#include <lib/sys/cpp/component_context.h>
#include <lib/syslog/cpp/macros.h>
#include <sys/stat.h>
#include <sys/types.h>
#include "src/lib/fxl/command_line.h"
#include "src/lib/fxl/log_settings_command_line.h"
// Implements the vulkan loader's Loader service which provides the client
// driver portion to the loader as a VMO.
class LoaderImpl final : public fuchsia::vulkan::loader::Loader {
public:
LoaderImpl() = default;
~LoaderImpl() final = default;
// Adds a binding for fuchsia::vulkan::loader::Loader to |outgoing|
void Add(const std::shared_ptr<sys::OutgoingDirectory>& outgoing) {
outgoing->AddPublicService(fidl::InterfaceRequestHandler<fuchsia::vulkan::loader::Loader>(
[this](fidl::InterfaceRequest<fuchsia::vulkan::loader::Loader> request) {
bindings_.AddBinding(this, std::move(request), nullptr);
}));
}
private:
// fuchsia::vulkan::loader::Loader impl
void Get(std::string name, GetCallback callback) {
// TODO(fxbug.dev/13078): Load this from a package's data directory, not /system/lib
std::string load_path = "/system/lib/" + name;
int fd;
zx_status_t status =
fdio_open_fd(load_path.c_str(),
fuchsia::io::OPEN_RIGHT_READABLE | fuchsia::io::OPEN_RIGHT_EXECUTABLE, &fd);
if (status != ZX_OK) {
FX_LOGS(ERROR) << "Could not open path " << load_path << ":" << status;
callback({});
return;
}
zx::vmo vmo;
status = fdio_get_vmo_exec(fd, vmo.reset_and_get_address());
close(fd);
if (status != ZX_OK) {
FX_LOGS(ERROR) << "Could not clone vmo exec: " << status;
}
callback(std::move(vmo));
}
fidl::BindingSet<fuchsia::vulkan::loader::Loader> bindings_;
};
int main(int argc, const char* const* argv) {
async::Loop loop(&kAsyncLoopConfigAttachToCurrentThread);
fxl::SetLogSettingsFromCommandLine(fxl::CommandLineFromArgcArgv(argc, argv));
auto context = sys::ComponentContext::CreateAndServeOutgoingDirectory();
LoaderImpl loader_impl;
loader_impl.Add(context->outgoing());
FX_LOGS(INFO) << "Vulkan loader initialized.";
loop.Run();
return 0;
}