mirror of
https://github.com/classilla/tenfourfox.git
synced 2024-09-27 14:56:16 +00:00
53 lines
1.7 KiB
C
53 lines
1.7 KiB
C
|
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
|
||
|
* vim: set ts=8 sts=4 et sw=4 tw=99:
|
||
|
* This Source Code Form is subject to the terms of the Mozilla Public
|
||
|
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
||
|
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
|
||
|
|
||
|
#ifndef gc_Memory_h
|
||
|
#define gc_Memory_h
|
||
|
|
||
|
#include <stddef.h>
|
||
|
|
||
|
namespace js {
|
||
|
namespace gc {
|
||
|
|
||
|
// Sanity check that our compiled configuration matches the currently
|
||
|
// running instance and initialize any runtime data needed for allocation.
|
||
|
void InitMemorySubsystem();
|
||
|
|
||
|
size_t SystemPageSize();
|
||
|
|
||
|
// Allocate or deallocate pages from the system with the given alignment.
|
||
|
void* MapAlignedPages(size_t size, size_t alignment);
|
||
|
void UnmapPages(void* p, size_t size);
|
||
|
|
||
|
// Tell the OS that the given pages are not in use, so they should not be
|
||
|
// written to a paging file. This may be a no-op on some platforms.
|
||
|
bool MarkPagesUnused(void* p, size_t size);
|
||
|
|
||
|
// Undo |MarkPagesUnused|: tell the OS that the given pages are of interest
|
||
|
// and should be paged in and out normally. This may be a no-op on some
|
||
|
// platforms.
|
||
|
bool MarkPagesInUse(void* p, size_t size);
|
||
|
|
||
|
// Returns #(hard faults) + #(soft faults)
|
||
|
size_t GetPageFaultCount();
|
||
|
|
||
|
// Allocate memory mapped content.
|
||
|
// The offset must be aligned according to alignment requirement.
|
||
|
void* AllocateMappedContent(int fd, size_t offset, size_t length, size_t alignment);
|
||
|
|
||
|
// Deallocate memory mapped content.
|
||
|
void DeallocateMappedContent(void* p, size_t length);
|
||
|
|
||
|
void* TestMapAlignedPagesLastDitch(size_t size, size_t alignment);
|
||
|
|
||
|
void ProtectPages(void* p, size_t size);
|
||
|
void UnprotectPages(void* p, size_t size);
|
||
|
|
||
|
} // namespace gc
|
||
|
} // namespace js
|
||
|
|
||
|
#endif /* gc_Memory_h */
|