/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ /* 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/. */
#include"primpl.h"
#ifdefined(_PR_PTHREADS)
/* ** The pthreads version doesn't use these functions.
*/ void _PR_InitSegs(void) {}
#else/* _PR_PTHREADS */
void _PR_InitSegs(void) { _PR_MD_INIT_SEGS(); }
/* ** Allocate a memory segment. The size value is rounded up to the native ** system page size and a page aligned portion of memory is returned. ** This memory is not part of the malloc heap. If "vaddr" is not NULL ** then PR tries to allocate the segment at the desired virtual address.
*/
PRSegment* _PR_NewSegment(PRUint32 size, void* vaddr) {
PRSegment* seg;
/* calloc the data structure for the segment */
seg = PR_NEWZAP(PRSegment);
if (seg) {
size = ((size + _pr_pageSize - 1) >> _pr_pageShift) << _pr_pageShift; /* ** Now, allocate the actual segment memory (or map under some OS) ** The OS specific code decides from where or how to allocate memory.
*/ if (_PR_MD_ALLOC_SEGMENT(seg, size, vaddr) != PR_SUCCESS) {
PR_DELETE(seg); return NULL;
}
}
Die Informationen auf dieser Webseite wurden
nach bestem Wissen sorgfältig zusammengestellt. Es wird jedoch weder Vollständigkeit, noch Richtigkeit,
noch Qualität der bereit gestellten Informationen zugesichert.
Bemerkung:
Die farbliche Syntaxdarstellung und die Messung sind noch experimentell.