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/*
* Copyright 2009, Google Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * 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.
* * Neither the name of Google Inc. 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
* OWNER 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.
*/
// This file has the implementation of the Command Buffer Synchronous API RPC
// glue.
#include "command_buffer/common/cross/logging.h"
#include "command_buffer/service/cross/buffer_rpc.h"
namespace o3d {
namespace command_buffer {
// Implements the dispatch function, deciding on which function to call based
// on the message ID, taking the arguments trivially serialized in the data
// payload.
BufferRPCImpl::ReturnValue BufferRPCImpl::DoCall(int message_id,
const void *data,
size_t size,
RPCHandle const *handles,
size_t handle_count) {
switch (message_id) {
case INIT_CONNECTION: {
DCHECK_EQ(0, size);
DCHECK_EQ(0, handle_count);
handler_->InitConnection();
return 0;
}
case CLOSE_CONNECTION:
DCHECK_EQ(0, size);
DCHECK_EQ(0, handle_count);
handler_->CloseConnection();
return 0;
case REGISTER_SHARED_MEMORY: {
DCHECK_EQ(sizeof(size_t), size); // NOLINT
DCHECK_EQ(1, handle_count);
RPCShmHandle buffer = static_cast<RPCShmHandle>(handles[0]);
return handler_->RegisterSharedMemory(buffer,
*static_cast<const size_t *>(data));
}
case UNREGISTER_SHARED_MEMORY: {
DCHECK_EQ(sizeof(unsigned int), size); // NOLINT
DCHECK_EQ(0, handle_count);
unsigned int shm_id = *(static_cast<const unsigned int *>(data));
handler_->UnregisterSharedMemory(shm_id);
return 0;
}
case SET_COMMAND_BUFFER: {
DCHECK_EQ(sizeof(SetCommandBufferStruct), size);
DCHECK_EQ(0, handle_count);
const SetCommandBufferStruct *params =
static_cast<const SetCommandBufferStruct *>(data);
handler_->SetCommandBuffer(params->shm_id,
params->offset,
params->size,
params->start_get);
return 0;
}
case PUT: {
DCHECK_EQ(sizeof(CommandBufferOffset), size);
DCHECK_EQ(0, handle_count);
CommandBufferOffset offset =
*(static_cast<const CommandBufferOffset *>(data));
handler_->Put(offset);
return 0;
}
case GET:
DCHECK_EQ(0, size);
DCHECK_EQ(0, handle_count);
return handler_->Get();
case GET_TOKEN:
DCHECK_EQ(0, size);
DCHECK_EQ(0, handle_count);
return handler_->GetToken();
case WAIT_GET_CHANGES: {
DCHECK_EQ(sizeof(CommandBufferOffset), size);
DCHECK_EQ(0, handle_count);
CommandBufferOffset current_value =
*(static_cast<const CommandBufferOffset *>(data));
return handler_->WaitGetChanges(current_value);
}
case SIGNAL_GET_CHANGES: {
DCHECK_EQ(sizeof(SignalGetChangesStruct), size);
DCHECK_EQ(0, handle_count);
const SignalGetChangesStruct *params =
static_cast<const SignalGetChangesStruct *>(data);
handler_->SignalGetChanges(params->current_value,
params->rpc_message_id);
return 0;
}
case GET_STATUS: {
DCHECK_EQ(0, size);
DCHECK_EQ(0, handle_count);
return handler_->GetStatus();
}
case GET_PARSE_ERROR: {
DCHECK_EQ(0, size);
DCHECK_EQ(0, handle_count);
return handler_->GetParseError();
}
default:
LOG(FATAL) << "unsupported RPC";
return 0;
}
}
} // namespace command_buffer
} // namespace o3d
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