/usr/include/js/jsgcchunk.h is in libmozjs185-dev 1.8.5-1.0.0+dfsg-4.3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 | /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
* vim: set ts=4 sw=4 et tw=99 ft=cpp:
*
* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is Mozilla SpiderMonkey JavaScript 1.9.1 code, released
* June 30, 2009.
*
* The Initial Developer of the Original Code is
* The Mozilla Foundation
*
* Contributor(s):
* Igor Bukanov <igor@mir2.org>
*
* Alternatively, the contents of this file may be used under the terms of
* either of the GNU General Public License Version 2 or later (the "GPL"),
* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#ifndef jsgchunk_h__
#define jsgchunk_h__
#include "jsprvtd.h"
#include "jsutil.h"
namespace js {
#if defined(WINCE) && !defined(MOZ_MEMORY_WINCE6)
const size_t GC_CHUNK_SHIFT = 21;
#else
const size_t GC_CHUNK_SHIFT = 20;
#endif
const size_t GC_CHUNK_SIZE = size_t(1) << GC_CHUNK_SHIFT;
const size_t GC_CHUNK_MASK = GC_CHUNK_SIZE - 1;
JS_FRIEND_API(void *)
AllocGCChunk();
JS_FRIEND_API(void)
FreeGCChunk(void *p);
class GCChunkAllocator {
public:
GCChunkAllocator() {}
void *alloc() {
void *chunk = doAlloc();
JS_ASSERT(!(reinterpret_cast<jsuword>(chunk) & GC_CHUNK_MASK));
return chunk;
}
void free(void *chunk) {
JS_ASSERT(chunk);
JS_ASSERT(!(reinterpret_cast<jsuword>(chunk) & GC_CHUNK_MASK));
doFree(chunk);
}
private:
virtual void *doAlloc() {
return AllocGCChunk();
}
virtual void doFree(void *chunk) {
FreeGCChunk(chunk);
}
/* No copy or assignment semantics. */
GCChunkAllocator(const GCChunkAllocator &);
void operator=(const GCChunkAllocator &);
};
extern GCChunkAllocator defaultGCChunkAllocator;
}
#endif /* jsgchunk_h__ */
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