diff options
Diffstat (limited to 'JavaScriptCore/interpreter/RegisterFile.cpp')
| -rw-r--r-- | JavaScriptCore/interpreter/RegisterFile.cpp | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/JavaScriptCore/interpreter/RegisterFile.cpp b/JavaScriptCore/interpreter/RegisterFile.cpp index 50698f5..cfcf1d3 100644 --- a/JavaScriptCore/interpreter/RegisterFile.cpp +++ b/JavaScriptCore/interpreter/RegisterFile.cpp @@ -42,4 +42,15 @@ RegisterFile::~RegisterFile() #endif } +void RegisterFile::releaseExcessCapacity() +{ +#if HAVE(MMAP) && HAVE(MADV_FREE) && !HAVE(VIRTUALALLOC) + while (madvise(m_start, (m_max - m_start) * sizeof(Register), MADV_FREE) == -1 && errno == EAGAIN) { } +#elif HAVE(VIRTUALALLOC) + VirtualFree(m_start, (m_max - m_start) * sizeof(Register), MEM_DECOMMIT); + m_commitEnd = m_start; +#endif + m_maxUsed = m_start; +} + } // namespace JSC |