853 lines
19 KiB
C++
853 lines
19 KiB
C++
/*
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* Copyright 2011-2013 Blender Foundation
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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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*/
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#include "device.h"
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#include "device_intern.h"
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#include "device_network.h"
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#include "util_foreach.h"
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#include "util_logging.h"
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#if defined(WITH_NETWORK)
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CCL_NAMESPACE_BEGIN
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typedef map<device_ptr, device_ptr> PtrMap;
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typedef vector<uint8_t> DataVector;
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typedef map<device_ptr, DataVector> DataMap;
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/* tile list */
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typedef vector<RenderTile> TileList;
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/* search a list of tiles and find the one that matches the passed render tile */
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static TileList::iterator tile_list_find(TileList& tile_list, RenderTile& tile)
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{
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for(TileList::iterator it = tile_list.begin(); it != tile_list.end(); ++it)
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if(tile.x == it->x && tile.y == it->y && tile.start_sample == it->start_sample)
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return it;
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return tile_list.end();
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}
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class NetworkDevice : public Device
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{
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public:
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boost::asio::io_service io_service;
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tcp::socket socket;
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device_ptr mem_counter;
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DeviceTask the_task; /* todo: handle multiple tasks */
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thread_mutex rpc_lock;
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NetworkDevice(DeviceInfo& info, Stats &stats, const char *address)
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: Device(info, stats, true), socket(io_service)
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{
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error_func = NetworkError();
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stringstream portstr;
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portstr << SERVER_PORT;
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tcp::resolver resolver(io_service);
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tcp::resolver::query query(address, portstr.str());
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tcp::resolver::iterator endpoint_iterator = resolver.resolve(query);
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tcp::resolver::iterator end;
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boost::system::error_code error = boost::asio::error::host_not_found;
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while(error && endpoint_iterator != end)
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{
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socket.close();
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socket.connect(*endpoint_iterator++, error);
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}
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if(error)
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error_func.network_error(error.message());
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mem_counter = 0;
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}
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~NetworkDevice()
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{
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RPCSend snd(socket, &error_func, "stop");
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snd.write();
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}
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void mem_alloc(device_memory& mem, MemoryType type)
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{
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thread_scoped_lock lock(rpc_lock);
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mem.device_pointer = ++mem_counter;
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RPCSend snd(socket, &error_func, "mem_alloc");
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snd.add(mem);
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snd.add(type);
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snd.write();
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}
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void mem_copy_to(device_memory& mem)
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{
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thread_scoped_lock lock(rpc_lock);
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RPCSend snd(socket, &error_func, "mem_copy_to");
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snd.add(mem);
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snd.write();
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snd.write_buffer((void*)mem.data_pointer, mem.memory_size());
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}
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void mem_copy_from(device_memory& mem, int y, int w, int h, int elem)
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{
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thread_scoped_lock lock(rpc_lock);
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size_t data_size = mem.memory_size();
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RPCSend snd(socket, &error_func, "mem_copy_from");
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snd.add(mem);
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snd.add(y);
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snd.add(w);
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snd.add(h);
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snd.add(elem);
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snd.write();
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RPCReceive rcv(socket, &error_func);
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rcv.read_buffer((void*)mem.data_pointer, data_size);
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}
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void mem_zero(device_memory& mem)
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{
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thread_scoped_lock lock(rpc_lock);
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RPCSend snd(socket, &error_func, "mem_zero");
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snd.add(mem);
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snd.write();
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}
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void mem_free(device_memory& mem)
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{
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if(mem.device_pointer) {
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thread_scoped_lock lock(rpc_lock);
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RPCSend snd(socket, &error_func, "mem_free");
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snd.add(mem);
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snd.write();
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mem.device_pointer = 0;
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}
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}
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void const_copy_to(const char *name, void *host, size_t size)
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{
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thread_scoped_lock lock(rpc_lock);
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RPCSend snd(socket, &error_func, "const_copy_to");
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string name_string(name);
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snd.add(name_string);
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snd.add(size);
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snd.write();
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snd.write_buffer(host, size);
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}
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void tex_alloc(const char *name,
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device_memory& mem,
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InterpolationType interpolation,
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ExtensionType extension)
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{
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VLOG(1) << "Texture allocate: " << name << ", " << mem.memory_size() << " bytes.";
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thread_scoped_lock lock(rpc_lock);
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mem.device_pointer = ++mem_counter;
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RPCSend snd(socket, &error_func, "tex_alloc");
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string name_string(name);
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snd.add(name_string);
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snd.add(mem);
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snd.add(interpolation);
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snd.add(extension);
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snd.write();
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snd.write_buffer((void*)mem.data_pointer, mem.memory_size());
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}
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void tex_free(device_memory& mem)
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{
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if(mem.device_pointer) {
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thread_scoped_lock lock(rpc_lock);
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RPCSend snd(socket, &error_func, "tex_free");
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snd.add(mem);
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snd.write();
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mem.device_pointer = 0;
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}
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}
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bool load_kernels(const DeviceRequestedFeatures& requested_features)
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{
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if(error_func.have_error())
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return false;
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thread_scoped_lock lock(rpc_lock);
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RPCSend snd(socket, &error_func, "load_kernels");
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snd.add(requested_features.experimental);
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snd.add(requested_features.max_closure);
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snd.add(requested_features.max_nodes_group);
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snd.add(requested_features.nodes_features);
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snd.write();
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bool result;
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RPCReceive rcv(socket, &error_func);
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rcv.read(result);
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return result;
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}
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void task_add(DeviceTask& task)
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{
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thread_scoped_lock lock(rpc_lock);
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the_task = task;
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RPCSend snd(socket, &error_func, "task_add");
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snd.add(task);
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snd.write();
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}
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void task_wait()
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{
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thread_scoped_lock lock(rpc_lock);
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RPCSend snd(socket, &error_func, "task_wait");
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snd.write();
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lock.unlock();
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TileList the_tiles;
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/* todo: run this threaded for connecting to multiple clients */
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for(;;) {
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if(error_func.have_error())
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break;
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RenderTile tile;
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lock.lock();
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RPCReceive rcv(socket, &error_func);
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if(rcv.name == "acquire_tile") {
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lock.unlock();
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/* todo: watch out for recursive calls! */
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if(the_task.acquire_tile(this, tile)) { /* write return as bool */
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the_tiles.push_back(tile);
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lock.lock();
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RPCSend snd(socket, &error_func, "acquire_tile");
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snd.add(tile);
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snd.write();
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lock.unlock();
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}
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else {
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lock.lock();
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RPCSend snd(socket, &error_func, "acquire_tile_none");
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snd.write();
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lock.unlock();
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}
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}
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else if(rcv.name == "release_tile") {
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rcv.read(tile);
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lock.unlock();
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TileList::iterator it = tile_list_find(the_tiles, tile);
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if(it != the_tiles.end()) {
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tile.buffers = it->buffers;
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the_tiles.erase(it);
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}
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assert(tile.buffers != NULL);
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the_task.release_tile(tile);
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lock.lock();
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RPCSend snd(socket, &error_func, "release_tile");
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snd.write();
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lock.unlock();
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}
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else if(rcv.name == "task_wait_done") {
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lock.unlock();
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break;
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}
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else
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lock.unlock();
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}
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}
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void task_cancel()
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{
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thread_scoped_lock lock(rpc_lock);
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RPCSend snd(socket, &error_func, "task_cancel");
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snd.write();
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}
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int get_split_task_count(DeviceTask& task)
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{
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return 1;
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}
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private:
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NetworkError error_func;
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};
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Device *device_network_create(DeviceInfo& info, Stats &stats, const char *address)
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{
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return new NetworkDevice(info, stats, address);
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}
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void device_network_info(vector<DeviceInfo>& devices)
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{
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DeviceInfo info;
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info.type = DEVICE_NETWORK;
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info.description = "Network Device";
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info.id = "NETWORK";
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info.num = 0;
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info.advanced_shading = true; /* todo: get this info from device */
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info.pack_images = false;
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devices.push_back(info);
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}
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class DeviceServer {
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public:
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thread_mutex rpc_lock;
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void network_error(const string &message) {
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error_func.network_error(message);
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}
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bool have_error() { return error_func.have_error(); }
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DeviceServer(Device *device_, tcp::socket& socket_)
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: device(device_), socket(socket_), stop(false), blocked_waiting(false)
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{
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error_func = NetworkError();
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}
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void listen()
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{
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/* receive remote function calls */
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for(;;) {
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listen_step();
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if(stop)
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break;
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}
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}
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protected:
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void listen_step()
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{
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thread_scoped_lock lock(rpc_lock);
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RPCReceive rcv(socket, &error_func);
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if(rcv.name == "stop")
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stop = true;
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else
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process(rcv, lock);
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}
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/* create a memory buffer for a device buffer and insert it into mem_data */
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DataVector &data_vector_insert(device_ptr client_pointer, size_t data_size)
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{
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/* create a new DataVector and insert it into mem_data */
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pair<DataMap::iterator,bool> data_ins = mem_data.insert(
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DataMap::value_type(client_pointer, DataVector()));
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/* make sure it was a unique insertion */
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assert(data_ins.second);
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/* get a reference to the inserted vector */
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DataVector &data_v = data_ins.first->second;
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/* size the vector */
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data_v.resize(data_size);
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return data_v;
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}
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DataVector &data_vector_find(device_ptr client_pointer)
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{
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DataMap::iterator i = mem_data.find(client_pointer);
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assert(i != mem_data.end());
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return i->second;
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}
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/* setup mapping and reverse mapping of client_pointer<->real_pointer */
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void pointer_mapping_insert(device_ptr client_pointer, device_ptr real_pointer)
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{
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pair<PtrMap::iterator,bool> mapins;
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/* insert mapping from client pointer to our real device pointer */
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mapins = ptr_map.insert(PtrMap::value_type(client_pointer, real_pointer));
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assert(mapins.second);
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/* insert reverse mapping from real our device pointer to client pointer */
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mapins = ptr_imap.insert(PtrMap::value_type(real_pointer, client_pointer));
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assert(mapins.second);
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}
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device_ptr device_ptr_from_client_pointer(device_ptr client_pointer)
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{
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PtrMap::iterator i = ptr_map.find(client_pointer);
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assert(i != ptr_map.end());
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return i->second;
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}
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device_ptr device_ptr_from_client_pointer_erase(device_ptr client_pointer)
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{
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PtrMap::iterator i = ptr_map.find(client_pointer);
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assert(i != ptr_map.end());
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device_ptr result = i->second;
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/* erase the mapping */
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ptr_map.erase(i);
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/* erase the reverse mapping */
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PtrMap::iterator irev = ptr_imap.find(result);
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assert(irev != ptr_imap.end());
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ptr_imap.erase(irev);
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/* erase the data vector */
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DataMap::iterator idata = mem_data.find(client_pointer);
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assert(idata != mem_data.end());
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mem_data.erase(idata);
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return result;
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}
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/* note that the lock must be already acquired upon entry.
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* This is necessary because the caller often peeks at
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* the header and delegates control to here when it doesn't
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* specifically handle the current RPC.
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* The lock must be unlocked before returning */
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void process(RPCReceive& rcv, thread_scoped_lock &lock)
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{
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if(rcv.name == "mem_alloc") {
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MemoryType type;
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network_device_memory mem;
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device_ptr client_pointer;
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rcv.read(mem);
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rcv.read(type);
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lock.unlock();
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client_pointer = mem.device_pointer;
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/* create a memory buffer for the device buffer */
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size_t data_size = mem.memory_size();
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DataVector &data_v = data_vector_insert(client_pointer, data_size);
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if(data_size)
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mem.data_pointer = (device_ptr)&(data_v[0]);
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else
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mem.data_pointer = 0;
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/* perform the allocation on the actual device */
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device->mem_alloc(mem, type);
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/* store a mapping to/from client_pointer and real device pointer */
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pointer_mapping_insert(client_pointer, mem.device_pointer);
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}
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else if(rcv.name == "mem_copy_to") {
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network_device_memory mem;
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rcv.read(mem);
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lock.unlock();
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device_ptr client_pointer = mem.device_pointer;
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DataVector &data_v = data_vector_find(client_pointer);
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size_t data_size = mem.memory_size();
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/* get pointer to memory buffer for device buffer */
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mem.data_pointer = (device_ptr)&data_v[0];
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/* copy data from network into memory buffer */
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rcv.read_buffer((uint8_t*)mem.data_pointer, data_size);
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/* translate the client pointer to a real device pointer */
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mem.device_pointer = device_ptr_from_client_pointer(client_pointer);
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/* copy the data from the memory buffer to the device buffer */
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device->mem_copy_to(mem);
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}
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else if(rcv.name == "mem_copy_from") {
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network_device_memory mem;
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int y, w, h, elem;
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rcv.read(mem);
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rcv.read(y);
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rcv.read(w);
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rcv.read(h);
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rcv.read(elem);
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device_ptr client_pointer = mem.device_pointer;
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mem.device_pointer = device_ptr_from_client_pointer(client_pointer);
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DataVector &data_v = data_vector_find(client_pointer);
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mem.data_pointer = (device_ptr)&(data_v[0]);
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device->mem_copy_from(mem, y, w, h, elem);
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size_t data_size = mem.memory_size();
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RPCSend snd(socket, &error_func, "mem_copy_from");
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snd.write();
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snd.write_buffer((uint8_t*)mem.data_pointer, data_size);
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lock.unlock();
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}
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else if(rcv.name == "mem_zero") {
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network_device_memory mem;
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rcv.read(mem);
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lock.unlock();
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device_ptr client_pointer = mem.device_pointer;
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mem.device_pointer = device_ptr_from_client_pointer(client_pointer);
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DataVector &data_v = data_vector_find(client_pointer);
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mem.data_pointer = (device_ptr)&(data_v[0]);
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device->mem_zero(mem);
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}
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else if(rcv.name == "mem_free") {
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network_device_memory mem;
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device_ptr client_pointer;
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rcv.read(mem);
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lock.unlock();
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client_pointer = mem.device_pointer;
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mem.device_pointer = device_ptr_from_client_pointer_erase(client_pointer);
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device->mem_free(mem);
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}
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else if(rcv.name == "const_copy_to") {
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string name_string;
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size_t size;
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rcv.read(name_string);
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rcv.read(size);
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vector<char> host_vector(size);
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rcv.read_buffer(&host_vector[0], size);
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lock.unlock();
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device->const_copy_to(name_string.c_str(), &host_vector[0], size);
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}
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else if(rcv.name == "tex_alloc") {
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network_device_memory mem;
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string name;
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InterpolationType interpolation;
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ExtensionType extension_type;
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device_ptr client_pointer;
|
|
|
|
rcv.read(name);
|
|
rcv.read(mem);
|
|
rcv.read(interpolation);
|
|
rcv.read(extension_type);
|
|
lock.unlock();
|
|
|
|
client_pointer = mem.device_pointer;
|
|
|
|
size_t data_size = mem.memory_size();
|
|
|
|
DataVector &data_v = data_vector_insert(client_pointer, data_size);
|
|
|
|
if(data_size)
|
|
mem.data_pointer = (device_ptr)&(data_v[0]);
|
|
else
|
|
mem.data_pointer = 0;
|
|
|
|
rcv.read_buffer((uint8_t*)mem.data_pointer, data_size);
|
|
|
|
device->tex_alloc(name.c_str(), mem, interpolation, extension_type);
|
|
|
|
pointer_mapping_insert(client_pointer, mem.device_pointer);
|
|
}
|
|
else if(rcv.name == "tex_free") {
|
|
network_device_memory mem;
|
|
device_ptr client_pointer;
|
|
|
|
rcv.read(mem);
|
|
lock.unlock();
|
|
|
|
client_pointer = mem.device_pointer;
|
|
|
|
mem.device_pointer = device_ptr_from_client_pointer_erase(client_pointer);
|
|
|
|
device->tex_free(mem);
|
|
}
|
|
else if(rcv.name == "load_kernels") {
|
|
DeviceRequestedFeatures requested_features;
|
|
rcv.read(requested_features.experimental);
|
|
rcv.read(requested_features.max_closure);
|
|
rcv.read(requested_features.max_nodes_group);
|
|
rcv.read(requested_features.nodes_features);
|
|
|
|
bool result;
|
|
result = device->load_kernels(requested_features);
|
|
RPCSend snd(socket, &error_func, "load_kernels");
|
|
snd.add(result);
|
|
snd.write();
|
|
lock.unlock();
|
|
}
|
|
else if(rcv.name == "task_add") {
|
|
DeviceTask task;
|
|
|
|
rcv.read(task);
|
|
lock.unlock();
|
|
|
|
if(task.buffer)
|
|
task.buffer = device_ptr_from_client_pointer(task.buffer);
|
|
|
|
if(task.rgba_half)
|
|
task.rgba_half = device_ptr_from_client_pointer(task.rgba_half);
|
|
|
|
if(task.rgba_byte)
|
|
task.rgba_byte = device_ptr_from_client_pointer(task.rgba_byte);
|
|
|
|
if(task.shader_input)
|
|
task.shader_input = device_ptr_from_client_pointer(task.shader_input);
|
|
|
|
if(task.shader_output)
|
|
task.shader_output = device_ptr_from_client_pointer(task.shader_output);
|
|
|
|
|
|
task.acquire_tile = function_bind(&DeviceServer::task_acquire_tile, this, _1, _2);
|
|
task.release_tile = function_bind(&DeviceServer::task_release_tile, this, _1);
|
|
task.update_progress_sample = function_bind(&DeviceServer::task_update_progress_sample, this);
|
|
task.update_tile_sample = function_bind(&DeviceServer::task_update_tile_sample, this, _1);
|
|
task.get_cancel = function_bind(&DeviceServer::task_get_cancel, this);
|
|
|
|
device->task_add(task);
|
|
}
|
|
else if(rcv.name == "task_wait") {
|
|
lock.unlock();
|
|
|
|
blocked_waiting = true;
|
|
device->task_wait();
|
|
blocked_waiting = false;
|
|
|
|
lock.lock();
|
|
RPCSend snd(socket, &error_func, "task_wait_done");
|
|
snd.write();
|
|
lock.unlock();
|
|
}
|
|
else if(rcv.name == "task_cancel") {
|
|
lock.unlock();
|
|
device->task_cancel();
|
|
}
|
|
else if(rcv.name == "acquire_tile") {
|
|
AcquireEntry entry;
|
|
entry.name = rcv.name;
|
|
rcv.read(entry.tile);
|
|
acquire_queue.push_back(entry);
|
|
lock.unlock();
|
|
}
|
|
else if(rcv.name == "acquire_tile_none") {
|
|
AcquireEntry entry;
|
|
entry.name = rcv.name;
|
|
acquire_queue.push_back(entry);
|
|
lock.unlock();
|
|
}
|
|
else if(rcv.name == "release_tile") {
|
|
AcquireEntry entry;
|
|
entry.name = rcv.name;
|
|
acquire_queue.push_back(entry);
|
|
lock.unlock();
|
|
}
|
|
else {
|
|
cout << "Error: unexpected RPC receive call \"" + rcv.name + "\"\n";
|
|
lock.unlock();
|
|
}
|
|
}
|
|
|
|
bool task_acquire_tile(Device *device, RenderTile& tile)
|
|
{
|
|
thread_scoped_lock acquire_lock(acquire_mutex);
|
|
|
|
bool result = false;
|
|
|
|
RPCSend snd(socket, &error_func, "acquire_tile");
|
|
snd.write();
|
|
|
|
do {
|
|
if(blocked_waiting)
|
|
listen_step();
|
|
|
|
/* todo: avoid busy wait loop */
|
|
thread_scoped_lock lock(rpc_lock);
|
|
|
|
if(!acquire_queue.empty()) {
|
|
AcquireEntry entry = acquire_queue.front();
|
|
acquire_queue.pop_front();
|
|
|
|
if(entry.name == "acquire_tile") {
|
|
tile = entry.tile;
|
|
|
|
if(tile.buffer) tile.buffer = ptr_map[tile.buffer];
|
|
if(tile.rng_state) tile.rng_state = ptr_map[tile.rng_state];
|
|
|
|
result = true;
|
|
break;
|
|
}
|
|
else if(entry.name == "acquire_tile_none") {
|
|
break;
|
|
}
|
|
else {
|
|
cout << "Error: unexpected acquire RPC receive call \"" + entry.name + "\"\n";
|
|
}
|
|
}
|
|
} while(acquire_queue.empty() && !stop && !have_error());
|
|
|
|
return result;
|
|
}
|
|
|
|
void task_update_progress_sample()
|
|
{
|
|
; /* skip */
|
|
}
|
|
|
|
void task_update_tile_sample(RenderTile&)
|
|
{
|
|
; /* skip */
|
|
}
|
|
|
|
void task_release_tile(RenderTile& tile)
|
|
{
|
|
thread_scoped_lock acquire_lock(acquire_mutex);
|
|
|
|
if(tile.buffer) tile.buffer = ptr_imap[tile.buffer];
|
|
if(tile.rng_state) tile.rng_state = ptr_imap[tile.rng_state];
|
|
|
|
{
|
|
thread_scoped_lock lock(rpc_lock);
|
|
RPCSend snd(socket, &error_func, "release_tile");
|
|
snd.add(tile);
|
|
snd.write();
|
|
lock.unlock();
|
|
}
|
|
|
|
do {
|
|
if(blocked_waiting)
|
|
listen_step();
|
|
|
|
/* todo: avoid busy wait loop */
|
|
thread_scoped_lock lock(rpc_lock);
|
|
|
|
if(!acquire_queue.empty()) {
|
|
AcquireEntry entry = acquire_queue.front();
|
|
acquire_queue.pop_front();
|
|
|
|
if(entry.name == "release_tile") {
|
|
lock.unlock();
|
|
break;
|
|
}
|
|
else {
|
|
cout << "Error: unexpected release RPC receive call \"" + entry.name + "\"\n";
|
|
}
|
|
}
|
|
} while(acquire_queue.empty() && !stop);
|
|
}
|
|
|
|
bool task_get_cancel()
|
|
{
|
|
return false;
|
|
}
|
|
|
|
/* properties */
|
|
Device *device;
|
|
tcp::socket& socket;
|
|
|
|
/* mapping of remote to local pointer */
|
|
PtrMap ptr_map;
|
|
PtrMap ptr_imap;
|
|
DataMap mem_data;
|
|
|
|
struct AcquireEntry {
|
|
string name;
|
|
RenderTile tile;
|
|
};
|
|
|
|
thread_mutex acquire_mutex;
|
|
list<AcquireEntry> acquire_queue;
|
|
|
|
bool stop;
|
|
bool blocked_waiting;
|
|
private:
|
|
NetworkError error_func;
|
|
|
|
/* todo: free memory and device (osl) on network error */
|
|
|
|
};
|
|
|
|
void Device::server_run()
|
|
{
|
|
try {
|
|
/* starts thread that responds to discovery requests */
|
|
ServerDiscovery discovery;
|
|
|
|
for(;;) {
|
|
/* accept connection */
|
|
boost::asio::io_service io_service;
|
|
tcp::acceptor acceptor(io_service, tcp::endpoint(tcp::v4(), SERVER_PORT));
|
|
|
|
tcp::socket socket(io_service);
|
|
acceptor.accept(socket);
|
|
|
|
string remote_address = socket.remote_endpoint().address().to_string();
|
|
printf("Connected to remote client at: %s\n", remote_address.c_str());
|
|
|
|
DeviceServer server(this, socket);
|
|
server.listen();
|
|
|
|
printf("Disconnected.\n");
|
|
}
|
|
}
|
|
catch(exception& e) {
|
|
fprintf(stderr, "Network server exception: %s\n", e.what());
|
|
}
|
|
}
|
|
|
|
CCL_NAMESPACE_END
|
|
|
|
#endif
|
|
|
|
|