diff options
Diffstat (limited to 'llvm/lib/Support/Windows/Process.inc')
| -rw-r--r-- | llvm/lib/Support/Windows/Process.inc | 14 |
1 files changed, 6 insertions, 8 deletions
diff --git a/llvm/lib/Support/Windows/Process.inc b/llvm/lib/Support/Windows/Process.inc index d3a0c94e1ce..9eb611be870 100644 --- a/llvm/lib/Support/Windows/Process.inc +++ b/llvm/lib/Support/Windows/Process.inc @@ -43,11 +43,9 @@ process::id_type self_process::get_id() { return GetCurrentProcess(); } - // This function retrieves the page size using GetSystemInfo and is present -// solely so it can be called once in Process::GetPageSize to initialize the -// static variable PageSize. -inline unsigned GetPageSizeOnce() { +// solely so it can be called once to initialize the self_process member below. +static unsigned getPageSize() { // NOTE: A 32-bit application running under WOW64 is supposed to use // GetNativeSystemInfo. However, this interface is not present prior // to Windows XP so to use it requires dynamic linking. It is not clear @@ -58,12 +56,12 @@ inline unsigned GetPageSizeOnce() { return static_cast<unsigned>(info.dwPageSize); } -unsigned -Process::GetPageSize() { - static const unsigned PageSize = GetPageSizeOnce(); - return PageSize; +// This constructor guaranteed to be run exactly once on a single thread, and +// sets up various process invariants that can be queried cheaply from then on. +self_process::self_process() : PageSize(getPageSize()) { } + size_t Process::GetMallocUsage() { |
