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+/*
+ *
+ * Copyright 2015, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef SYSTEM_EXTRAS_PERFPROFD_CONFIG_H_
+#define SYSTEM_EXTRAS_PERFPROFD_CONFIG_H_
+
+#include <cstdint>
+#include <string>
+#include <vector>
+
+struct Config {
+  virtual ~Config() {}
+
+  // Average number of seconds between perf profile collections (if
+  // set to 100, then over time we want to see a perf profile
+  // collected every 100 seconds). The actual time within the interval
+  // for the collection is chosen randomly.
+  uint32_t collection_interval_in_s = 14400;
+  // Use the specified fixed seed for random number generation (unit
+  // testing)
+  uint32_t use_fixed_seed = 0;
+  // For testing purposes, number of times to iterate through main
+  // loop.  Value of zero indicates that we should loop forever.
+  uint32_t main_loop_iterations = 0;
+
+  // The pid of the process to profile. May be negative, in which case
+  // the whole system will be profiled.
+  int32_t process = -1;
+
+  // Destination directory (where to write profiles).
+  std::string destination_directory = "/data/misc/perfprofd";
+  // Config directory (where to read configs).
+  std::string config_directory = "/data/data/com.google.android.gms/files";
+  // Full path to 'perf' executable.
+  std::string perf_path = "/system/bin/simpleperf";
+
+  // Desired sampling period (passed to perf -c option). Small
+  // sampling periods can perturb the collected profiles, so enforce
+  // min/max. A value of 0 means perf default. sampling_frequency
+  // takes priority.
+  uint32_t sampling_period = 0;
+  // Desired sampling frequency (passed to perf -f option). A value of 0
+  // means using sampling_period or default.
+  uint32_t sampling_frequency = 0;
+  // Length of time to collect samples (number of seconds for 'perf
+  // record -a' run).
+  uint32_t sample_duration_in_s = 2;
+
+  // If this parameter is non-zero it will cause perfprofd to
+  // exit immediately if the build type is not userdebug or eng.
+  // Currently defaults to 1 (true).
+  bool only_debug_build = true;
+
+  // If the "mpdecision" service is running at the point we are ready
+  // to kick off a profiling run, then temporarily disable the service
+  // and hard-wire all cores on prior to the collection run, provided
+  // that the duration of the recording is less than or equal to the value of
+  // 'hardwire_cpus_max_duration'.
+  bool hardwire_cpus = true;
+  uint32_t hardwire_cpus_max_duration_in_s = 5;
+
+  // Maximum number of unprocessed profiles we can accumulate in the
+  // destination directory. Once we reach this limit, we continue
+  // to collect, but we just overwrite the most recent profile.
+  uint32_t max_unprocessed_profiles = 10;
+
+  // If set to 1, pass the -g option when invoking 'perf' (requests
+  // stack traces as opposed to flat profile).
+  bool stack_profile = false;
+
+  // For unit testing only: if set to 1, emit info messages on config
+  // file parsing.
+  bool trace_config_read = false;
+
+  // Control collection of various additional profile tags
+  bool collect_cpu_utilization = true;
+  bool collect_charging_state = true;
+  bool collect_booting = true;
+  bool collect_camera_active = false;
+
+  // If true, use an ELF symbolizer to on-device symbolize.
+  bool use_elf_symbolizer = true;
+  // Whether to symbolize everything. If false, objects with build ID will be skipped.
+  bool symbolize_everything = false;
+
+  // If true, use libz to compress the output proto.
+  bool compress = true;
+
+  // If true, send the proto to dropbox instead to a file.
+  bool send_to_dropbox = false;
+
+  // Whether to fail or strip unsupported events.
+  bool fail_on_unsupported_events = false;
+
+  struct PerfCounterConfigElem {
+    std::vector<std::string> events;
+    bool group;
+    uint32_t sampling_period;
+  };
+  std::vector<PerfCounterConfigElem> event_config;
+
+  // Sleep for the given number of seconds.
+  virtual void Sleep(size_t seconds) = 0;
+
+  // Should the profiling be stopped immediately?
+  virtual bool ShouldStopProfiling() {
+    return false;
+  }
+
+  // Is profiling enabled?
+  virtual bool IsProfilingEnabled() const = 0;
+};
+
+#endif  // SYSTEM_EXTRAS_PERFPROFD_CONFIG_H_