This PR replaces the Get*CallbackAtIndex pattern in the PluginManager with returning a snapshot of callbacks that the caller can iterate over using a range-based for loop. This is a continuation of #184452 which added thread safety by using snapshots. However, that introduced a bunch of unnecessary copies which are largely eliminated again by getting the snapshot once when gather all the callbacks, rather than doing that on each iteration when querying a plugin for a given index. It also eliminates the possibility of the snapshot changing underneath you when iterating over the plugins. This change was largely mechanical and I used Claude to do the menial work of updating the signatures and call sites.
24 lines
807 B
C++
24 lines
807 B
C++
//===-- MemoryHistory.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 "lldb/Target/MemoryHistory.h"
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#include "lldb/Core/PluginManager.h"
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using namespace lldb;
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using namespace lldb_private;
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lldb::MemoryHistorySP MemoryHistory::FindPlugin(const ProcessSP process) {
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for (auto create_callback :
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PluginManager::GetMemoryHistoryCreateCallbacks()) {
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MemoryHistorySP memory_history_sp(create_callback(process));
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if (memory_history_sp)
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return memory_history_sp;
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}
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return {};
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}
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