blob: 8dc155e3d7892da7b3f1a66229c7c67624bc322a [file] [log] [blame]
//* 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.may_have_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->generation = cmd.{{name}}.generation;
{% 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