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// Copyright 2016 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef COMPONENTS_METRICS_CALL_STACK_PROFILE_PARAMS_H_
#define COMPONENTS_METRICS_CALL_STACK_PROFILE_PARAMS_H_
namespace metrics {
// Parameters to pass back to the metrics provider.
struct CallStackProfileParams {
// The process in which the collection occurred.
enum Process {
UNKNOWN_PROCESS,
BROWSER_PROCESS,
RENDERER_PROCESS,
GPU_PROCESS,
UTILITY_PROCESS,
ZYGOTE_PROCESS,
SANDBOX_HELPER_PROCESS,
PPAPI_PLUGIN_PROCESS,
PPAPI_BROKER_PROCESS
};
// The thread from which the collection occurred.
enum Thread {
UNKNOWN_THREAD,
// Browser process threads, some of which occur in other processes as well.
UI_THREAD,
FILE_THREAD,
FILE_USER_BLOCKING_THREAD,
PROCESS_LAUNCHER_THREAD,
CACHE_THREAD,
IO_THREAD,
DB_THREAD,
// GPU process thread.
GPU_MAIN_THREAD,
// Renderer process threads.
RENDER_THREAD,
UTILITY_THREAD
};
// The event that triggered the profile collection.
enum Trigger {
UNKNOWN,
PROCESS_STARTUP,
JANKY_TASK,
THREAD_HUNG,
TRIGGER_LAST = THREAD_HUNG
};
// Allows the caller to specify whether sample ordering is
// important. MAY_SHUFFLE should always be used to enable better compression,
// unless the use case needs order to be preserved for a specific reason.
enum SampleOrderingSpec {
// The provider may shuffle the sample order to improve compression.
MAY_SHUFFLE,
// The provider will not change the sample order.
PRESERVE_ORDER
};
// The default constructor is required for mojo and should not be used
// otherwise. A valid trigger should always be specified.
CallStackProfileParams();
CallStackProfileParams(Process process, Thread thread, Trigger trigger);
CallStackProfileParams(Process process, Thread thread, Trigger trigger,
SampleOrderingSpec ordering_spec);
// The collection process.
Process process;
// The collection thread.
Thread thread;
// The triggering event.
Trigger trigger;
// Whether to preserve sample ordering.
SampleOrderingSpec ordering_spec;
};
} // namespace metrics
#endif // COMPONENTS_METRICS_CALL_STACK_PROFILE_PARAMS_H_
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