//* Copyright 2019 The Dawn Authors //* //* Licensed under the Apache License, Version 2.0 (the "License"); //* you may not use this file except in compliance with the License. //* You may obtain a copy of the License at //* //* http://www.apache.org/licenses/LICENSE-2.0 //* //* Unless required by applicable law or agreed to in writing, software //* distributed under the License is distributed on an "AS IS" BASIS, //* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. //* See the License for the specific language governing permissions and //* limitations under the License. #include "common/Assert.h" #include "dawn_wire/server/Server.h" namespace dawn_wire { namespace server { {% for command in cmd_records["command"] %} {% set type = command.derived_object %} {% set method = command.derived_method %} {% set is_method = method != None %} {% set returns = is_method and method.return_type.name.canonical_case() != "void" %} {% set Suffix = command.name.CamelCase() %} //* The generic command handlers bool Server::Handle{{Suffix}}(const volatile char** commands, size_t* size) { {{Suffix}}Cmd cmd; DeserializeResult deserializeResult = cmd.Deserialize(commands, size, &mAllocator {%- if command.has_dawn_object -%} , *this {%- endif -%} ); if (deserializeResult == DeserializeResult::FatalError) { return false; } {% if Suffix in server_custom_pre_handler_commands %} if (!PreHandle{{Suffix}}(cmd)) { return false; } {% endif %} //* Allocate any result objects {%- for member in command.members if member.is_return_value -%} {{ assert(member.handle_type) }} {% set Type = member.handle_type.name.CamelCase() %} {% set name = as_varName(member.name) %} auto* {{name}}Data = {{Type}}Objects().Allocate(cmd.{{name}}.id); if ({{name}}Data == nullptr) { return false; } {{name}}Data->serial = cmd.{{name}}.serial; {% endfor %} //* Do command bool success = Do{{Suffix}}( {%- for member in command.members -%} {%- if member.is_return_value -%} {%- if member.handle_type -%} &{{as_varName(member.name)}}Data->handle //* Pass the handle of the output object to be written by the doer {%- else -%} &cmd.{{as_varName(member.name)}} {%- endif -%} {%- else -%} cmd.{{as_varName(member.name)}} {%- endif -%} {%- if not loop.last -%}, {% endif %} {%- endfor -%} ); if (!success) { return false; } {%- for member in command.members if member.is_return_value and member.handle_type -%} {% set Type = member.handle_type.name.CamelCase() %} {% set name = as_varName(member.name) %} {% if Type in server_reverse_lookup_objects %} //* For created objects, store a mapping from them back to their client IDs {{Type}}ObjectIdTable().Store({{name}}Data->handle, cmd.{{name}}.id); {% endif %} {% endfor %} return true; } {% endfor %} const volatile char* Server::HandleCommands(const volatile char* commands, size_t size) { mProcs.deviceTick(DeviceObjects().Get(1)->handle); while (size >= sizeof(WireCmd)) { WireCmd cmdId = *reinterpret_cast<const volatile WireCmd*>(commands); bool success = false; switch (cmdId) { {% for command in cmd_records["command"] %} case WireCmd::{{command.name.CamelCase()}}: success = Handle{{command.name.CamelCase()}}(&commands, &size); break; {% endfor %} default: success = false; } if (!success) { return nullptr; } mAllocator.Reset(); } if (size != 0) { return nullptr; } return commands; } }} // namespace dawn_wire::server