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30 #include "RegisterFile.h"
32 #include "ConservativeRoots.h"
33 #include "Interpreter.h"
37 static size_t committedBytesCount = 0;
39 static Mutex& registerFileStatisticsMutex()
41 DEFINE_STATIC_LOCAL(Mutex, staticMutex, ());
45 RegisterFile::~RegisterFile()
47 void* base = m_reservation.base();
48 m_reservation.decommit(base, reinterpret_cast<intptr_t>(m_commitEnd) - reinterpret_cast<intptr_t>(base));
49 addToCommittedByteCount(-(reinterpret_cast<intptr_t>(m_commitEnd) - reinterpret_cast<intptr_t>(base)));
50 m_reservation.deallocate();
53 void RegisterFile::gatherConservativeRoots(ConservativeRoots& conservativeRoots)
55 conservativeRoots.add(begin(), end());
58 void RegisterFile::releaseExcessCapacity()
60 ptrdiff_t delta = reinterpret_cast<uintptr_t>(m_commitEnd) - reinterpret_cast<uintptr_t>(m_reservation.base());
61 m_reservation.decommit(m_reservation.base(), delta);
62 addToCommittedByteCount(-delta);
63 m_commitEnd = static_cast<Register*>(m_reservation.base());
66 void RegisterFile::initializeThreading()
68 registerFileStatisticsMutex();
71 size_t RegisterFile::committedByteCount()
73 MutexLocker locker(registerFileStatisticsMutex());
74 return committedBytesCount;
77 void RegisterFile::addToCommittedByteCount(long byteCount)
79 MutexLocker locker(registerFileStatisticsMutex());
80 ASSERT(static_cast<long>(committedBytesCount) + byteCount > -1);
81 committedBytesCount += byteCount;