22 */
23
24 #include "precompiled.hpp"
25 #include "gc/z/zBackingFile_windows.hpp"
26 #include "gc/z/zGlobals.hpp"
27 #include "gc/z/zGranuleMap.inline.hpp"
28 #include "gc/z/zMapper_windows.hpp"
29 #include "logging/log.hpp"
30 #include "runtime/globals.hpp"
31 #include "utilities/debug.hpp"
32
33 // The backing file commits and uncommits physical memory, that can be
34 // multi-mapped into the virtual address space. To support fine-graned
35 // committing and uncommitting, each ZGranuleSize chunked is mapped to
36 // a separate paging file mapping.
37
38 ZBackingFile::ZBackingFile() :
39 _handles(MaxHeapSize),
40 _size(0) {}
41
42 size_t ZBackingFile::size() const {
43 return _size;
44 }
45
46 HANDLE ZBackingFile::get_handle(uintptr_t offset) const {
47 HANDLE const handle = _handles.get(offset);
48 assert(handle != 0, "Should be set");
49 return handle;
50 }
51
52 void ZBackingFile::put_handle(uintptr_t offset, HANDLE handle) {
53 assert(handle != INVALID_HANDLE_VALUE, "Invalid handle");
54 assert(_handles.get(offset) == 0, "Should be cleared");
55 _handles.put(offset, handle);
56 }
57
58 void ZBackingFile::clear_handle(uintptr_t offset) {
59 assert(_handles.get(offset) != 0, "Should be set");
60 _handles.put(offset, 0);
61 }
|
22 */
23
24 #include "precompiled.hpp"
25 #include "gc/z/zBackingFile_windows.hpp"
26 #include "gc/z/zGlobals.hpp"
27 #include "gc/z/zGranuleMap.inline.hpp"
28 #include "gc/z/zMapper_windows.hpp"
29 #include "logging/log.hpp"
30 #include "runtime/globals.hpp"
31 #include "utilities/debug.hpp"
32
33 // The backing file commits and uncommits physical memory, that can be
34 // multi-mapped into the virtual address space. To support fine-graned
35 // committing and uncommitting, each ZGranuleSize chunked is mapped to
36 // a separate paging file mapping.
37
38 ZBackingFile::ZBackingFile() :
39 _handles(MaxHeapSize),
40 _size(0) {}
41
42 bool ZBackingFile::is_initialized() const {
43 return true;
44 }
45
46 void ZBackingFile::warn_commit_limits(size_t max) const {
47 // Does nothing
48 }
49
50 size_t ZBackingFile::size() const {
51 return _size;
52 }
53
54 HANDLE ZBackingFile::get_handle(uintptr_t offset) const {
55 HANDLE const handle = _handles.get(offset);
56 assert(handle != 0, "Should be set");
57 return handle;
58 }
59
60 void ZBackingFile::put_handle(uintptr_t offset, HANDLE handle) {
61 assert(handle != INVALID_HANDLE_VALUE, "Invalid handle");
62 assert(_handles.get(offset) == 0, "Should be cleared");
63 _handles.put(offset, handle);
64 }
65
66 void ZBackingFile::clear_handle(uintptr_t offset) {
67 assert(_handles.get(offset) != 0, "Should be set");
68 _handles.put(offset, 0);
69 }
|