homework-jianmu/source/libs/tfs/src/tdisk.c

60 lines
1.6 KiB
C

/*
* Copyright (c) 2019 TAOS Data, Inc. <jhtao@taosdata.com>
*
* This program is free software: you can use, redistribute, and/or modify
* it under the terms of the GNU Affero General Public License, version 3
* or later ("AGPL"), as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "os.h"
#include "taoserror.h"
#include "tfsint.h"
// PROTECTED ====================================
SDisk *tfsNewDisk(int level, int id, const char *dir) {
SDisk *pDisk = (SDisk *)calloc(1, sizeof(*pDisk));
if (pDisk == NULL) {
terrno = TSDB_CODE_FS_OUT_OF_MEMORY;
return NULL;
}
pDisk->level = level;
pDisk->id = id;
tstrncpy(pDisk->dir, dir, TSDB_FILENAME_LEN);
return pDisk;
}
SDisk *tfsFreeDisk(SDisk *pDisk) {
if (pDisk) {
free(pDisk);
}
return NULL;
}
int tfsUpdateDiskInfo(SDisk *pDisk) {
ASSERT(pDisk != NULL);
SysDiskSize diskSize = {0};
int code = taosGetDiskSize(pDisk->dir, &diskSize);
if (code != 0) {
fError("failed to update disk information at level %d id %d dir %s since %s", pDisk->level, pDisk->id, pDisk->dir,
strerror(errno));
terrno = TAOS_SYSTEM_ERROR(errno);
}
pDisk->dmeta.size = diskSize.tsize;
pDisk->dmeta.used = diskSize.used;
pDisk->dmeta.free = diskSize.avail;
return code;
}