1 //===- HandleToArea.cpp ----------------------------------------------------===// 2 // 3 // The MCLinker Project 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 #include <mcld/Support/HandleToArea.h> 10 #include <mcld/Support/MemoryArea.h> 11 #include <llvm/ADT/StringRef.h> 12 13 using namespace mcld; 14 15 //===----------------------------------------------------------------------===// 16 // HandleToArea 17 bool HandleToArea::push_back(FileHandle* pHandle, MemoryArea* pArea) 18 { 19 if (NULL == pHandle || NULL == pArea) 20 return false; 21 22 Bucket bucket; 23 bucket.hash_value = HashFunction()( 24 llvm::StringRef(pHandle->path().native().c_str(), 25 pHandle->path().native().size())); 26 27 bucket.handle = pHandle; 28 bucket.area = pArea; 29 m_AreaMap.push_back(bucket); 30 return true; 31 } 32 33 bool HandleToArea::erase(MemoryArea* pArea) 34 { 35 if (NULL == pArea || NULL == pArea->handler()) 36 return false; 37 38 return erase(pArea->handler()->path()); 39 } 40 41 bool HandleToArea::erase(const sys::fs::Path& pPath) 42 { 43 unsigned int hash_value = HashFunction()( 44 llvm::StringRef(pPath.native().c_str(), 45 pPath.native().size())); 46 47 HandleToAreaMap::iterator bucket, bEnd = m_AreaMap.end(); 48 for (bucket = m_AreaMap.begin(); bucket != bEnd; ++bucket) { 49 if (bucket->hash_value == hash_value && bucket->handle->path() == pPath) { 50 // found 51 m_AreaMap.erase(bucket); 52 return true; 53 } 54 } 55 56 return false; 57 } 58 59 HandleToArea::Result HandleToArea::findFirst(const sys::fs::Path& pPath) 60 { 61 unsigned int hash_value = HashFunction()(llvm::StringRef(pPath.native().c_str(), 62 pPath.native().size())); 63 64 HandleToAreaMap::iterator bucket, bEnd = m_AreaMap.end(); 65 66 for (bucket = m_AreaMap.begin(); bucket != bEnd; ++bucket) { 67 if (bucket->hash_value == hash_value) { 68 if (bucket->handle->path() == pPath) { 69 return Result(bucket->handle, bucket->area); 70 } 71 } 72 } 73 74 return Result(NULL, NULL); 75 } 76 77 HandleToArea::ConstResult HandleToArea::findFirst(const sys::fs::Path& pPath) const 78 { 79 unsigned int hash_value = HashFunction()(llvm::StringRef(pPath.native().c_str(), 80 pPath.native().size())); 81 82 HandleToAreaMap::const_iterator bucket, bEnd = m_AreaMap.end(); 83 84 for (bucket = m_AreaMap.begin(); bucket != bEnd; ++bucket) { 85 if (bucket->hash_value == hash_value) { 86 if (bucket->handle->path() == pPath) { 87 return ConstResult(bucket->handle, bucket->area); 88 } 89 } 90 } 91 92 return ConstResult(NULL, NULL); 93 } 94 95
