4164be7206
Don't create a new lua state on every operation. Share a single state across the lifetime of the script interpreter. Add simple locking to prevent two threads from modifying the state concurrently.
29 lines
968 B
C++
29 lines
968 B
C++
//===-- Lua.cpp -----------------------------------------------------------===//
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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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#include "Lua.h"
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#include "llvm/Support/FormatVariadic.h"
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using namespace lldb_private;
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llvm::Error Lua::Run(llvm::StringRef buffer) {
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std::lock_guard<std::mutex> lock(m_mutex);
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int error =
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luaL_loadbuffer(m_lua_state, buffer.data(), buffer.size(), "buffer") ||
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lua_pcall(m_lua_state, 0, 0, 0);
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if (!error)
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return llvm::Error::success();
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llvm::Error e = llvm::make_error<llvm::StringError>(
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llvm::formatv("{0}\n", lua_tostring(m_lua_state, -1)),
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llvm::inconvertibleErrorCode());
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// Pop error message from the stack.
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lua_pop(m_lua_state, 1);
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return e;
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}
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