mirror of
https://github.com/libguestfs/libguestfs.git
synced 2026-03-21 22:53:37 +00:00
fdbc5aa711
Replace calls to sync() with calls to sync_disks() which supports Win32 via FlushFileBuffers.
56 lines
1.3 KiB
C
56 lines
1.3 KiB
C
/* libguestfs - the guestfsd daemon
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* Copyright (C) 2009 Red Hat Inc.
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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; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU 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., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include <config.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include "daemon.h"
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#include "actions.h"
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#define PROCFILE "/proc/sys/vm/drop_caches"
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int
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do_drop_caches (int what)
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{
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FILE *fp;
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if (sync_disks () == -1) {
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reply_with_perror ("sync");
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return -1;
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}
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fp = fopen (PROCFILE, "w");
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if (fp == NULL) {
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reply_with_perror (PROCFILE);
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return -1;
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}
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fprintf (fp, "%d", what);
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if (fclose (fp) == EOF) {
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reply_with_perror (PROCFILE);
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return -1;
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}
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return 0;
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}
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