1    :  // Copyright 2013 Google Inc. All Rights Reserved.
   2    :  //
   3    :  // Licensed under the Apache License, Version 2.0 (the "License");
   4    :  // you may not use this file except in compliance with the License.
   5    :  // You may obtain a copy of the License at
   6    :  //
   7    :  //     http://www.apache.org/licenses/LICENSE-2.0
   8    :  //
   9    :  // Unless required by applicable law or agreed to in writing, software
  10    :  // distributed under the License is distributed on an "AS IS" BASIS,
  11    :  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  12    :  // See the License for the specific language governing permissions and
  13    :  // limitations under the License.
  14    :  #ifndef SYZYGY_SAMPLER_SAMPLER_APP_H_
  15    :  #define SYZYGY_SAMPLER_SAMPLER_APP_H_
  16    :  
  17    :  #include "base/files/file_path.h"
  18    :  #include "syzygy/common/application.h"
  19    :  
  20  m :  namespace sampler {
  21    :  
  22    :  // The application class that takes care of running a profiling sampler. This
  23    :  // works by polling running processes and attaching a
  24    :  // base::win::SamplingProfiler instance to every module of interest. The output
  25    :  // is then shuttled to trace data files.
  26  m :  class SamplerApp : public common::AppImplBase {
  27  m :   public:
  28  m :    SamplerApp();
  29    :  
  30    :    // @name Implementation of the AppImplbase interface.
  31    :    // @{
  32  m :    bool ParseCommandLine(const CommandLine* command_line);
  33  m :    int Run();
  34    :    // @}
  35    :  
  36  m :   protected:
  37    :    // Helper function for printing a usage statement.
  38    :    // @param program The path to the executable.
  39    :    // @param message An optional message that will precede the usage statement.
  40    :    // @returns false.
  41  m :    bool PrintUsage(const base::FilePath& program,
  42  m :                    const base::StringPiece& message);
  43  m :  };
  44    :  
  45  m :  }  // namespace sampler
  46    :  
  47    :  #endif  // SYZYGY_SAMPLER_SAMPLER_APP_H_