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Simplify the sys::Memory interface per Chris' request.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16318 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Reid Spencer
2004-09-13 22:38:11 +00:00
parent 2565943289
commit 33189e787b
11 changed files with 114 additions and 94 deletions
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lib/System/Win32/Memory.cpp
+9 -8
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@@ -22,8 +22,8 @@ using namespace sys;
//=== WARNING: Implementation here must contain only Win32 specific code.
//===----------------------------------------------------------------------===//
void* Memory::AllocateRWX(Memory&M, unsigned NumBytes) {
if (NumBytes == 0) return 0;
MemoryBlock Memory::AllocateRWX(unsigned NumBytes) {
if (NumBytes == 0) return MemoryBlock();
unsigned pageSize = Process::GetPageSize();
unsigned NumPages = (NumBytes+pageSize-1)/pageSize;
@@ -33,12 +33,13 @@ void* Memory::AllocateRWX(Memory&M, unsigned NumBytes) {
throw std::string("Couldn't allocate ") + utostr(NumBytes) +
" bytes of executable memory!";
}
M.Address = P;
M.AllocSize = NumBytes;
return P;
MemoryBlock result;
result.Address = P;
result.Size = NumBytes;
return result;
}
void Memory::ReleaseRWX(Memory& M) {
if (M.Address == 0 ) return;
VirtualFree(M.Address, M.AllocSize, MEM_DECOMMIT, PAGE_NOACCESS);
void Memory::ReleaseRWX(MemoryBlock& M) {
if (M.Address == 0 || M.Size == 0) return;
VirtualFree(M.Address, M.Size, MEM_DECOMMIT, PAGE_NOACCESS);
}