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// Copyright 2017 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.
module profiling.mojom;
import "mojo/common/file.mojom";
import "mojo/common/process_id.mojom";
import "mojo/common/values.mojom";
interface Memlog {
// Adds a new platform-specific pipe to read memlog trace data from.
// In normal usage, each child process will be given the other end of this
// pipe.
//
// This function has a return value so the caller can know when the
// connection has been established.
AddSender(mojo.common.mojom.ProcessId pid, handle sender_pipe) => ();
// Dumps the memory log of the process with the given |pid| into
// |output_file|. |metadata| is a dictionary that should be added to the trace
// under the "metadata" key.
DumpProcess(mojo.common.mojom.ProcessId pid, handle output_file,
mojo.common.mojom.DictionaryValue metadata) => (bool result);
// Dumps the memory log of the process with the given |pid| into a data
// pipe. The format is a JSON string compatible with TRACE_EVENT* macros.
// On success, returns a valid shared_buffer handle and the size of the
// data written. On failure, returns an invalid shared_buffer handle.
DumpProcessForTracing(mojo.common.mojom.ProcessId pid) =>
(handle<shared_buffer> consumer, uint32 size);
};
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