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