grpc-proxy/grpc-async-cb.cpp

   1 /*
   2  * Copyright © 2022 Collabora, Ltd.
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining
   5  * a copy of this software and associated documentation files (the
   6  * "Software"), to deal in the Software without restriction, including
   7  * without limitation the rights to use, copy, modify, merge, publish,
   8  * distribute, sublicense, and/or sell copies of the Software, and to
   9  * permit persons to whom the Software is furnished to do so, subject to
  10  * the following conditions:
  11  *
  12  * The above copyright notice and this permission notice (including the
  13  * next paragraph) shall be included in all copies or substantial
  14  * portions of the Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  17  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  18  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  19  * NONINFRINGEMENT.  IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  20  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  21  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  22  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  23  * SOFTWARE.
  24  */
  25
  26 #include <cstdio>
  27 #include <ctime>
  28 #include <algorithm>
  29 #include <queue>
  30
  31 #define GRPC_CALLBACK_API_NONEXPERIMENTAL
  32
  33 #include <grpc/grpc.h>
  34 #include <grpcpp/grpcpp.h>
  35 #include <grpcpp/server.h>
  36 #include <grpcpp/server_builder.h>
  37 #include <grpcpp/server_context.h>
  38
  39 #include <grpcpp/ext/proto_server_reflection_plugin.h>
  40 #include <grpcpp/health_check_service_interface.h>
  41
  42 #include "log.h"
  43 #include "agl_shell.grpc.pb.h"
  44 #include "grpc-async-cb.h"
  45
  46 Lister::Lister(Shell *shell) : m_shell(shell)
  47 {
  48         // don't call NextWrite() just yet we do it explicitly when getting
  49         // the events from the compositor
  50         m_writting = false;
  51 }
  52
  53 void
  54 Lister::OnDone()
  55 {
  56         delete this;
  57 }
  58
  59 void Lister::OnWriteDone(bool ok)
  60 {
  61         LOG("got ok %d\n", ok);
  62         if (ok) {
  63                 LOG("done writting %d\n", m_writting);
  64                 m_writting = false;
  65         }
  66 }
  67
  68 void
  69 Lister::NextWrite(void)
  70 {
  71         if (m_writting) {
  72                 LOG(">>>>> still in writting\n");
  73                 return;
  74         }
  75         m_writting = true;
  76         StartWrite(&m_shell->m_shell_data->current_app_state);
  77 }
  78
  79 bool
  80 Lister::Writting(void)
  81 {
  82         return m_writting;
  83 }
  84
  85 grpc::ServerUnaryReactor *
  86 GrpcServiceImpl::ActivateApp(grpc::CallbackServerContext *context,
  87                             const ::agl_shell_ipc::ActivateRequest* request,
  88                             ::agl_shell_ipc::ActivateResponse* /*response*/)
  89 {
  90         LOG("activating app %s on output %s\n", request->app_id().c_str(),
  91                                                 request->output_name().c_str());
  92
  93         m_aglShell->ActivateApp(request->app_id(), request->output_name());
  94
  95         grpc::ServerUnaryReactor* reactor = context->DefaultReactor();
  96         reactor->Finish(grpc::Status::OK);
  97         return reactor;
  98 }
  99
 100 grpc::ServerUnaryReactor *
 101 GrpcServiceImpl::DeactivateApp(grpc::CallbackServerContext *context,
 102                               const ::agl_shell_ipc::DeactivateRequest* request,
 103                               ::agl_shell_ipc::DeactivateResponse* /*response*/)
 104 {
 105         m_aglShell->DeactivateApp(request->app_id());
 106
 107         grpc::ServerUnaryReactor* reactor = context->DefaultReactor();
 108         reactor->Finish(grpc::Status::OK);
 109         return reactor;
 110 }
 111
 112 grpc::ServerUnaryReactor *
 113 GrpcServiceImpl::SetAppFloat(grpc::CallbackServerContext *context,
 114                             const ::agl_shell_ipc::FloatRequest* request,
 115                             ::agl_shell_ipc::FloatResponse* /* response */)
 116 {
 117         m_aglShell->SetAppFloat(request->app_id(),
 118                                 request->x_pos(), request->y_pos());
 119
 120         grpc::ServerUnaryReactor* reactor = context->DefaultReactor();
 121         reactor->Finish(grpc::Status::OK);
 122         return reactor;
 123 }
 124
 125 grpc::ServerUnaryReactor *
 126 GrpcServiceImpl::SetAppSplit(grpc::CallbackServerContext *context,
 127            const ::agl_shell_ipc::SplitRequest* request,
 128            ::agl_shell_ipc::SplitResponse* /*response*/)
 129 {
 130         m_aglShell->SetAppSplit(request->app_id(), request->tile_orientation());
 131
 132         grpc::ServerUnaryReactor* reactor = context->DefaultReactor();
 133         reactor->Finish(grpc::Status::OK);
 134         return reactor;
 135 }
 136
 137 grpc::ServerUnaryReactor *
 138 GrpcServiceImpl::GetOutputs(grpc::CallbackServerContext *context,
 139            const ::agl_shell_ipc::OutputRequest* /* request */,
 140            ::agl_shell_ipc::ListOutputResponse* response)
 141 {
 142         struct window_output *output;
 143
 144         struct wl_list *list = &m_aglShell->m_shell_data->output_list;
 145         wl_list_for_each(output, list, link) {
 146                 auto m_output = response->add_outputs();
 147                 m_output->set_name(output->name);
 148         }
 149
 150         grpc::ServerUnaryReactor* reactor = context->DefaultReactor();
 151         reactor->Finish(grpc::Status::OK);
 152         return reactor;
 153 }
 154
 155 grpc::ServerWriteReactor<::agl_shell_ipc::AppStateResponse>*
 156 GrpcServiceImpl::AppStatusState(grpc::CallbackServerContext* context,
 157                                  const ::agl_shell_ipc::AppStateRequest* /*request */)
 158 {
 159
 160         Lister *n = new Lister(m_aglShell);
 161
 162         m_aglShell->m_shell_data->server_context_list.push_back(std::pair(context, n));
 163         LOG("added lister %p\n", static_cast<void *>(n));
 164
 165         // just return a Lister to keep the channel open
 166         return n;
 167 }