34 lines
1.3 KiB
C++
34 lines
1.3 KiB
C++
// Copyright 2019 The Chromium Authors
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef IPC_TRACE_IPC_MESSAGE_H_
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#define IPC_TRACE_IPC_MESSAGE_H_
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#include <stdint.h>
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#include "base/component_export.h"
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#include "services/tracing/public/cpp/perfetto/macros.h"
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#include "third_party/perfetto/protos/perfetto/trace/track_event/chrome_legacy_ipc.pbzero.h"
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// When tracing is enabled, emits a trace event with the given category and
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// event name and typed arguments for the message's type (message class and line
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// number).
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#define TRACE_IPC_MESSAGE_SEND(category, name, msg) \
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TRACE_EVENT(category, name, [msg](perfetto::EventContext ctx) { \
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IPC::WriteIpcMessageIdAsProtozero(msg->type(), \
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ctx.event()->set_chrome_legacy_ipc()); \
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});
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namespace IPC {
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// Converts |message_id| into its message class and line number parts and writes
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// them to the protozero message |ChromeLegacyIpc| for trace events.
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void COMPONENT_EXPORT(IPC)
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WriteIpcMessageIdAsProtozero(uint32_t message_id,
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perfetto::protos::pbzero::ChromeLegacyIpc*);
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} // namespace IPC
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#endif // IPC_TRACE_IPC_MESSAGE_H_
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