1 // Copyright (c) 2009 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #include "base/global_descriptors_posix.h" 6 7 #include <vector> 8 #include <utility> 9 10 #include "base/logging.h" 11 12 namespace base { 13 14 // static 15 GlobalDescriptors* GlobalDescriptors::GetInstance() { 16 typedef Singleton<base::GlobalDescriptors, 17 LeakySingletonTraits<base::GlobalDescriptors> > 18 GlobalDescriptorsSingleton; 19 return GlobalDescriptorsSingleton::get(); 20 } 21 22 int GlobalDescriptors::Get(Key key) const { 23 const int ret = MaybeGet(key); 24 25 if (ret == -1) 26 LOG(FATAL) << "Unknown global descriptor: " << key; 27 return ret; 28 } 29 30 int GlobalDescriptors::MaybeGet(Key key) const { 31 for (Mapping::const_iterator 32 i = descriptors_.begin(); i != descriptors_.end(); ++i) { 33 if (i->first == key) 34 return i->second; 35 } 36 37 // In order to make unittests pass, we define a default mapping from keys to 38 // descriptors by adding a fixed offset: 39 return kBaseDescriptor + key; 40 } 41 42 void GlobalDescriptors::Set(Key key, int fd) { 43 for (Mapping::iterator 44 i = descriptors_.begin(); i != descriptors_.end(); ++i) { 45 if (i->first == key) { 46 i->second = fd; 47 return; 48 } 49 } 50 51 descriptors_.push_back(std::make_pair(key, fd)); 52 } 53 54 void GlobalDescriptors::Reset(const Mapping& mapping) { 55 descriptors_ = mapping; 56 } 57 58 GlobalDescriptors::GlobalDescriptors() {} 59 60 GlobalDescriptors::~GlobalDescriptors() {} 61 62 } // namespace base 63
