46585a3082
Investigating some of the biggest slow downs during tests, the biggest offender is 'wait_for_stopped' requiring a negative assertion around the 'stopped' event. It currently waits for a negative predicate to fail before continuing. This means it must wait for the full DEFAULT_TIMEOUT (50s) before the test is allowed to continue. To mitigate this, I added a new `collect_events` helper that will wait for the given event to occur with the DEFAULT_TIMEOUT, then wait for a quiet period (0.25s) before returning. This greatly reduces the amount of idle waiting during tests. Additionally, looking a the performance of individual test files, `TestDAP_launch` is the slowest overall test. No individual test is that slow, but the fact it has so many tests in the same file results in the test harness waiting for that one file to finish. To mitigate that, I split `TestDAP_launch` into individual test files that run in parallel, reducing the runtime locally from over 2mins to ~5s.
57 lines
1.9 KiB
C++
57 lines
1.9 KiB
C++
//===-- EventHelper.h -----------------------------------------------------===//
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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 LLDB_TOOLS_LLDB_DAP_EVENTHELPER_H
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#define LLDB_TOOLS_LLDB_DAP_EVENTHELPER_H
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#include "DAPForward.h"
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#include "Protocol/ProtocolEvents.h"
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#include "lldb/lldb-defines.h"
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#include "lldb/lldb-types.h"
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#include "llvm/ADT/ArrayRef.h"
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#include "llvm/Support/Error.h"
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namespace lldb_dap {
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struct DAP;
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enum LaunchMethod { Launch, Attach, AttachForSuspendedLaunch };
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/// Sends target based capabilities and lldb-dap custom capabilities.
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void SendExtraCapabilities(DAP &dap);
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void SendProcessEvent(DAP &dap, LaunchMethod launch_method);
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llvm::Error SendThreadStoppedEvent(DAP &dap, bool on_entry = false);
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void SendStdOutStdErr(DAP &dap, lldb::SBProcess &process);
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void SendContinuedEvent(DAP &dap);
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void SendProcessExitedEvent(DAP &dap, lldb::SBProcess &process);
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void SendInvalidatedEvent(
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DAP &dap, llvm::ArrayRef<protocol::InvalidatedEventBody::Area> areas,
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lldb::tid_t tid = LLDB_INVALID_THREAD_ID);
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void SendMemoryEvent(DAP &dap, lldb::SBValue variable);
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/// Event thread function that handles debugger events for multiple DAP sessions
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/// sharing the same debugger instance. This runs in its own thread and
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/// dispatches events to the appropriate DAP instance.
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///
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/// \param debugger The debugger instance to listen for events from.
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/// \param broadcaster The broadcaster for stop event thread notifications.
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/// \param client_name The client name for thread naming/logging purposes.
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/// \param log The log instance for logging.
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void EventThread(lldb::SBDebugger debugger, lldb::SBBroadcaster broadcaster,
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llvm::StringRef client_name, Log &log);
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} // namespace lldb_dap
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#endif
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