system_tracing_common.cc

// 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.

#include "chromecast/tracing/system_tracing_common.h"

#include <string.h>
#include "base/macros.h"
#include "base/trace_event/common/trace_event_common.h"

namespace chromecast {
namespace tracing {
namespace {

const char kSocketPath[] = "/dev/socket/tracing/tracing";

}  // namespace

const char* const kCategories[] = {
    "gfx",   "input", TRACE_DISABLED_BY_DEFAULT("irq"),
    "power", "sched", "workq"};

const size_t kCategoryCount = arraysize(kCategories);

sockaddr_un GetSystemTracingSocketAddress() {
  struct sockaddr_un addr;
  memset(&addr, 0, sizeof(addr));
  static_assert(sizeof(kSocketPath) <= sizeof(addr.sun_path),
                "Address too long");
  strncpy(addr.sun_path, kSocketPath, sizeof(addr.sun_path) - 1);
  addr.sun_family = AF_UNIX;
  return addr;
}

}  // namespace tracing
}  // namespace chromecast