contrib/llvm/tools/lldb/source/Target/OperatingSystem.cpp

   1 //===-- OperatingSystem.cpp -------------------------------------*- C++ -*-===//
   2 //
   3 //                     The LLVM Compiler Infrastructure
   4 //
   5 // This file is distributed under the University of Illinois Open Source
   6 // License. See LICENSE.TXT for details.
   7 //
   8 //===----------------------------------------------------------------------===//
   9
  10 // C Includes
  11 // C++ Includes
  12 // Other libraries and framework includes
  13 // Project includes
  14 #include "lldb/Target/OperatingSystem.h"
  15 #include "lldb/Core/PluginManager.h"
  16 #include "lldb/Target/Thread.h"
  17
  18 using namespace lldb;
  19 using namespace lldb_private;
  20
  21 OperatingSystem *OperatingSystem::FindPlugin(Process *process,
  22                                              const char *plugin_name) {
  23   OperatingSystemCreateInstance create_callback = nullptr;
  24   if (plugin_name) {
  25     ConstString const_plugin_name(plugin_name);
  26     create_callback =
  27         PluginManager::GetOperatingSystemCreateCallbackForPluginName(
  28             const_plugin_name);
  29     if (create_callback) {
  30       std::unique_ptr<OperatingSystem> instance_ap(
  31           create_callback(process, true));
  32       if (instance_ap)
  33         return instance_ap.release();
  34     }
  35   } else {
  36     for (uint32_t idx = 0;
  37          (create_callback =
  38               PluginManager::GetOperatingSystemCreateCallbackAtIndex(idx)) !=
  39          nullptr;
  40          ++idx) {
  41       std::unique_ptr<OperatingSystem> instance_ap(
  42           create_callback(process, false));
  43       if (instance_ap)
  44         return instance_ap.release();
  45     }
  46   }
  47   return nullptr;
  48 }
  49
  50 OperatingSystem::OperatingSystem(Process *process) : m_process(process) {}
  51
  52 OperatingSystem::~OperatingSystem() = default;
  53
  54 bool OperatingSystem::IsOperatingSystemPluginThread(
  55     const lldb::ThreadSP &thread_sp) {
  56   if (thread_sp)
  57     return thread_sp->IsOperatingSystemPluginThread();
  58   return false;
  59 }