d85576d368
Summary: Closing ports was previously done manually, This makes the protocol more error prone as unclosed ports will leak and eventually the locks will run out. I believe the original fear was that the RAII portion would negatively impact code generation but I have not noticed anything significant.
54 lines
1.5 KiB
C++
54 lines
1.5 KiB
C++
//===-- Common RPC server handler -----------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_TOOLS_LLVM_GPU_LOADER_SERVER_H
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#define LLVM_TOOLS_LLVM_GPU_LOADER_SERVER_H
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#include <cstddef>
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#include <cstdint>
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#include "shared/rpc.h"
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#include "shared/rpc_opcodes.h"
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#include "shared/rpc_server.h"
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template <uint32_t num_lanes, typename Alloc, typename Free>
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inline uint32_t handle_server(rpc::Server &server, uint32_t index,
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Alloc &&alloc, Free &&free) {
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auto port = server.try_open(num_lanes, index);
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if (!port)
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return 0;
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index = port->get_index() + 1;
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int status = rpc::RPC_SUCCESS;
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switch (port->get_opcode()) {
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case LIBC_MALLOC: {
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port->recv_and_send([&](rpc::Buffer *buffer, uint32_t) {
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buffer->data[0] = reinterpret_cast<uintptr_t>(alloc(buffer->data[0]));
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});
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break;
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}
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case LIBC_FREE: {
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port->recv([&](rpc::Buffer *buffer, uint32_t) {
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free(reinterpret_cast<void *>(buffer->data[0]));
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});
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break;
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}
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default:
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status = LIBC_NAMESPACE::shared::handle_libc_opcodes(*port, num_lanes);
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break;
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}
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// Handle all of the `libc` specific opcodes.
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if (status != rpc::RPC_SUCCESS)
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handle_error("Error handling RPC server");
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return index;
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}
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#endif // LLVM_TOOLS_LLVM_GPU_LOADER_SERVER_H
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