1    :  // Copyright 2015 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    :  //
  15    :  // Process-related convenience utilities for agents.
  16    :  
  17    :  #ifndef SYZYGY_COMMON_PROCESS_UTILS_H_
  18    :  #define SYZYGY_COMMON_PROCESS_UTILS_H_
  19    :  
  20    :  #include <windows.h>
  21    :  #include <vector>
  22    :  
  23  m :  namespace common {
  24    :  
  25  m :  typedef std::vector<HMODULE> ModuleVector;
  26    :  
  27    :  // Retrieves a list of all modules in the current process.
  28    :  // @param modules returns a vector containing all modules in the process.
  29    :  // @return true if successful. Otherwise, modules is guaranteed to be empty.
  30    :  // @note that other threads in the process can be loading or unloading
  31    :  //     libraries concurrently with calling this function and using its results.
  32    :  //     Using the results from this function is therefore inherently racy, unless
  33    :  //     running under the loader's lock, such as e.g. in a DllMain notification
  34    :  //     or e.g. a TLS callback function.
  35  m :  bool GetCurrentProcessModules(ModuleVector* modules);
  36    :  
  37    :  // Retrieves a list of all modules in the specified process.
  38    :  // @param process the process to query.
  39    :  // @param modules returns a vector containing all modules in the process.
  40    :  // @return true if successful. Otherwise, modules is guaranteed to be empty.
  41    :  // @note that the process can be loading or unloading libraries concurrently
  42    :  //     with this function and the use of its results. Using the results from
  43    :  //     this function is therefore inherently racy.
  44  m :  bool GetProcessModules(HANDLE process, ModuleVector* modules);
  45    :  
  46  m :  }  // namespace common
  47    :  
  48    :  #endif  // SYZYGY_COMMON_PROCESS_UTILS_H_