diff options
Diffstat (limited to 'chromium/third_party/WebKit/Source/wtf/TCSystemAlloc.h')
| -rw-r--r-- | chromium/third_party/WebKit/Source/wtf/TCSystemAlloc.h | 80 |
1 files changed, 0 insertions, 80 deletions
diff --git a/chromium/third_party/WebKit/Source/wtf/TCSystemAlloc.h b/chromium/third_party/WebKit/Source/wtf/TCSystemAlloc.h deleted file mode 100644 index 3a50e65b8e4..00000000000 --- a/chromium/third_party/WebKit/Source/wtf/TCSystemAlloc.h +++ /dev/null @@ -1,80 +0,0 @@ -// Copyright (c) 2005, 2007, Google Inc. -// All rights reserved. -// -// Redistribution and use in source and binary forms, with or without -// modification, are permitted provided that the following conditions are -// met: -// -// * Redistributions of source code must retain the above copyright -// notice, this list of conditions and the following disclaimer. -// * Redistributions in binary form must reproduce the above -// copyright notice, this list of conditions and the following disclaimer -// in the documentation and/or other materials provided with the -// distribution. -// * Neither the name of Google Inc. nor the names of its -// contributors may be used to endorse or promote products derived from -// this software without specific prior written permission. -// -// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS -// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT -// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR -// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT -// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, -// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT -// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, -// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY -// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE -// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - -// --- -// Author: Sanjay Ghemawat -// -// Routine that uses sbrk/mmap to allocate memory from the system. -// Useful for implementing malloc. - -#ifndef TCMALLOC_SYSTEM_ALLOC_H__ -#define TCMALLOC_SYSTEM_ALLOC_H__ - -// REQUIRES: "alignment" is a power of two or "0" to indicate default alignment -// -// Allocate and return "N" bytes of zeroed memory. -// -// If actual_bytes is NULL then the returned memory is exactly the -// requested size. If actual bytes is non-NULL then the allocator -// may optionally return more bytes than asked for (i.e. return an -// entire "huge" page if a huge page allocator is in use). -// -// The returned pointer is a multiple of "alignment" if non-zero. -// -// Returns NULL when out of memory. -extern void* TCMalloc_SystemAlloc(size_t bytes, size_t *actual_bytes, - size_t alignment = 0); - -// This call is a hint to the operating system that the pages -// contained in the specified range of memory will not be used for a -// while, and can be released for use by other processes or the OS. -// Pages which are released in this way may be destroyed (zeroed) by -// the OS. The benefit of this function is that it frees memory for -// use by the system, the cost is that the pages are faulted back into -// the address space next time they are touched, which can impact -// performance. (Only pages fully covered by the memory region will -// be released, partial pages will not.) -extern void TCMalloc_SystemRelease(void* start, size_t length); - -extern void TCMalloc_SystemCommit(void* start, size_t length); - -#if OS(MACOSX) -#define HAVE_MADV_FREE 1 -#define HAVE_MADV_FREE_REUSE 1 -#endif - -#if !HAVE(MADV_FREE_REUSE) && !HAVE(MADV_DONTNEED) && !HAVE(MMAP) -inline void TCMalloc_SystemRelease(void*, size_t) { } -#endif - -#if !HAVE(MADV_FREE_REUSE) -inline void TCMalloc_SystemCommit(void*, size_t) { } -#endif - -#endif /* TCMALLOC_SYSTEM_ALLOC_H__ */ |