40 lines
2.5 KiB
C
40 lines
2.5 KiB
C
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
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│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
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╞══════════════════════════════════════════════════════════════════════════════╡
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│ Copyright 2020 Justine Alexandra Roberts Tunney │
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│ │
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│ This program is free software; you can redistribute it and/or modify │
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│ it under the terms of the GNU General Public License as published by │
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│ the Free Software Foundation; version 2 of the License. │
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│ │
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│ This program is distributed in the hope that it will be useful, but │
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│ WITHOUT ANY WARRANTY; without even the implied warranty of │
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│ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU │
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│ General Public License for more details. │
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│ │
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│ You should have received a copy of the GNU General Public License │
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│ along with this program; if not, write to the Free Software │
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│ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA │
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│ 02110-1301 USA │
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╚─────────────────────────────────────────────────────────────────────────────*/
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#include "libc/calls/internal.h"
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#include "libc/macros.h"
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#include "libc/nt/files.h"
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#include "libc/nt/memory.h"
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#include "libc/runtime/memtrack.h"
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textwindows int msync$nt(void *addr, size_t size, int flags) {
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int x, y, l, r, i;
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x = ROUNDDOWN((intptr_t)addr, FRAMESIZE) >> 16;
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y = ROUNDDOWN((intptr_t)addr + size - 1, FRAMESIZE) >> 16;
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for (i = FindMemoryInterval(&_mmi, x); i < _mmi.i; ++i) {
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if ((x >= _mmi.p[i].x && x <= _mmi.p[i].y) ||
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(y >= _mmi.p[i].x && y <= _mmi.p[i].y)) {
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FlushFileBuffers(_mmi.h[i]);
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} else {
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break;
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}
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}
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return 0;
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}
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