1188faa7ab
IntelPTCollector is very big and has 3 classes in it. It's actually cleaner if each one has its own file. This also gives more visibility to the developer about the different kinds of "tracers" that we have. Besides that, I'm now restricting the creation of the BinaryData chunks to GetState() instead of having it in different places, which is not very clean, because the gdb-remote protocol should be as restricted as possible. Differential Revision: https://reviews.llvm.org/D125047
72 lines
2.2 KiB
C++
72 lines
2.2 KiB
C++
//===-- IntelPTThreadTraceCollection.h ------------------------ -*- C++ -*-===//
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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 liblldb_IntelPTPerThreadTraceCollection_H_
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#define liblldb_IntelPTPerThreadTraceCollection_H_
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#include "IntelPTSingleBufferTrace.h"
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namespace lldb_private {
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namespace process_linux {
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/// Manages a list of thread traces.
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class IntelPTThreadTraceCollection {
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public:
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IntelPTThreadTraceCollection() {}
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/// Dispose of all traces
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void Clear();
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/// \return
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/// \b true if and only if this instance of tracing the provided \p tid.
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bool TracesThread(lldb::tid_t tid) const;
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/// \return
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/// The total sum of the trace buffer sizes used by this collection.
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size_t GetTotalBufferSize() const;
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/// Execute the provided callback on each thread that is being traced.
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///
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/// \param[in] callback.tid
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/// The id of the thread that is being traced.
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///
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/// \param[in] callback.core_trace
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/// The single-buffer trace instance for the given core.
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void ForEachThread(std::function<void(lldb::tid_t tid,
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IntelPTSingleBufferTrace &thread_trace)>
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callback);
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llvm::Expected<IntelPTSingleBufferTrace &> GetTracedThread(lldb::tid_t tid);
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/// Start tracing the thread given by its \p tid.
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///
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/// \return
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/// An error if the operation failed.
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llvm::Error TraceStart(lldb::tid_t tid,
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const TraceIntelPTStartRequest &request);
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/// Stop tracing the thread given by its \p tid.
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///
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/// \return
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/// An error if the given thread is not being traced or tracing couldn't be
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/// stopped.
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llvm::Error TraceStop(lldb::tid_t tid);
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size_t GetTracedThreadsCount() const;
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private:
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llvm::DenseMap<lldb::tid_t, IntelPTSingleBufferTraceUP> m_thread_traces;
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/// Total actual thread buffer size in bytes
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size_t m_total_buffer_size = 0;
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};
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} // namespace process_linux
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} // namespace lldb_private
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#endif // liblldb_IntelPTPerThreadTraceCollection_H_
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