| //* Copyright 2019 The Dawn & Tint Authors |
| //* |
| //* Redistribution and use in source and binary forms, with or without |
| //* modification, are permitted provided that the following conditions are met: |
| //* |
| //* 1. Redistributions of source code must retain the above copyright notice, this |
| //* list of conditions and the following disclaimer. |
| //* |
| //* 2. Redistributions in binary form must reproduce the above copyright notice, |
| //* this list of conditions and the following disclaimer in the documentation |
| //* and/or other materials provided with the distribution. |
| //* |
| //* 3. Neither the name of the copyright holder nor the names of its |
| //* contributors may be used to endorse or promote products derived from |
| //* this software without specific prior written permission. |
| //* |
| //* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
| //* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| //* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| //* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE |
| //* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| //* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
| //* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
| //* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
| //* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| //* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| |
| #include "dawn/common/Assert.h" |
| #include "dawn/wire/client/Client.h" |
| |
| #include <string> |
| |
| namespace dawn::wire::client { |
| {% for command in cmd_records["return command"] %} |
| WireResult Client::Handle{{command.name.CamelCase()}}(DeserializeBuffer* deserializeBuffer) { |
| Return{{command.name.CamelCase()}}Cmd cmd; |
| WIRE_TRY(cmd.Deserialize(deserializeBuffer, &mWireCommandAllocator)); |
| |
| {% for member in command.members if member.handle_type %} |
| {% set Type = member.handle_type.name.CamelCase() %} |
| {% set name = as_varName(member.name) %} |
| |
| {% if member.type.dict_name == "ObjectHandle" %} |
| {{Type}}* {{name}} = Get<{{Type}}>(cmd.{{name}}.id); |
| if ({{name}} != nullptr && {{name}}->GetWireGeneration() != cmd.{{name}}.generation) { |
| {{name}} = nullptr; |
| } |
| {% endif %} |
| {% endfor %} |
| |
| return Do{{command.name.CamelCase()}}( |
| {%- for member in command.members -%} |
| {%- if member.handle_type -%} |
| {{as_varName(member.name)}} |
| {%- else -%} |
| cmd.{{as_varName(member.name)}} |
| {%- endif -%} |
| {%- if not loop.last -%}, {% endif %} |
| {%- endfor -%} |
| ); |
| } |
| {% endfor %} |
| |
| const volatile char* Client::HandleCommandsImpl(const volatile char* commands, size_t size) { |
| DeserializeBuffer deserializeBuffer(commands, size); |
| |
| while (deserializeBuffer.AvailableSize() >= sizeof(CmdHeader) + sizeof(ReturnWireCmd)) { |
| // Start by chunked command handling, if it is done, then it means the whole buffer |
| // was consumed by it, so we return a pointer to the end of the commands. |
| switch (HandleChunkedCommands(deserializeBuffer.Buffer(), deserializeBuffer.AvailableSize())) { |
| case ChunkedCommandsResult::Consumed: |
| return commands + size; |
| case ChunkedCommandsResult::Error: |
| return nullptr; |
| case ChunkedCommandsResult::Passthrough: |
| break; |
| } |
| |
| ReturnWireCmd cmdId = *static_cast<const volatile ReturnWireCmd*>(static_cast<const volatile void*>( |
| deserializeBuffer.Buffer() + sizeof(CmdHeader))); |
| WireResult result = WireResult::FatalError; |
| switch (cmdId) { |
| {% for command in cmd_records["return command"] %} |
| {% set Suffix = command.name.CamelCase() %} |
| case ReturnWireCmd::{{Suffix}}: |
| result = Handle{{Suffix}}(&deserializeBuffer); |
| break; |
| {% endfor %} |
| } |
| |
| if (result != WireResult::Success) { |
| return nullptr; |
| } |
| mWireCommandAllocator.Reset(); |
| } |
| |
| if (deserializeBuffer.AvailableSize() != 0) { |
| return nullptr; |
| } |
| |
| return commands; |
| } |
| } // namespace dawn::wire::client |