104 lines
3.1 KiB
C
104 lines
3.1 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/>.
|
|
*/
|
|
|
|
#define _DEFAULT_SOURCE
|
|
#include "dndInt.h"
|
|
|
|
#define MAXLEN 1024
|
|
|
|
int32_t dndReadFile(SMgmtWrapper *pWrapper, bool *pDeployed) {
|
|
int32_t code = TSDB_CODE_NODE_PARSE_FILE_ERROR;
|
|
int32_t len = 0;
|
|
const int32_t maxLen = MAXLEN;
|
|
char content[MAXLEN + 1] = {0};
|
|
cJSON *root = NULL;
|
|
char file[PATH_MAX];
|
|
TdFilePtr pFile = NULL;
|
|
|
|
snprintf(file, sizeof(file), "%s%s%s.json", pWrapper->path, TD_DIRSEP, pWrapper->name);
|
|
pFile = taosOpenFile(file, TD_FILE_READ);
|
|
if (pFile == NULL) {
|
|
dDebug("file %s not exist", file);
|
|
code = 0;
|
|
goto _OVER;
|
|
}
|
|
|
|
len = (int32_t)taosReadFile(pFile, content, maxLen);
|
|
if (len <= 0) {
|
|
dError("failed to read %s since content is null", file);
|
|
goto _OVER;
|
|
}
|
|
|
|
content[len] = 0;
|
|
root = cJSON_Parse(content);
|
|
if (root == NULL) {
|
|
dError("failed to read %s since invalid json format", file);
|
|
goto _OVER;
|
|
}
|
|
|
|
cJSON *deployed = cJSON_GetObjectItem(root, "deployed");
|
|
if (!deployed || deployed->type != cJSON_Number) {
|
|
dError("failed to read %s since deployed not found", file);
|
|
goto _OVER;
|
|
}
|
|
*pDeployed = deployed->valueint != 0;
|
|
|
|
code = 0;
|
|
dDebug("succcessed to read file %s, deployed:%d", file, *pDeployed);
|
|
|
|
_OVER:
|
|
if (root != NULL) cJSON_Delete(root);
|
|
if (pFile != NULL) taosCloseFile(&pFile);
|
|
|
|
terrno = code;
|
|
return code;
|
|
}
|
|
|
|
int32_t dndWriteFile(SMgmtWrapper *pWrapper, bool deployed) {
|
|
char file[PATH_MAX] = {0};
|
|
snprintf(file, sizeof(file), "%s%s%s.json", pWrapper->path, TD_DIRSEP, pWrapper->name);
|
|
|
|
TdFilePtr pFile = taosOpenFile(file, TD_FILE_CTEATE | TD_FILE_WRITE | TD_FILE_TRUNC);
|
|
if (pFile == NULL) {
|
|
terrno = TAOS_SYSTEM_ERROR(errno);
|
|
dError("failed to write %s since %s", file, terrstr());
|
|
return -1;
|
|
}
|
|
|
|
int32_t len = 0;
|
|
const int32_t maxLen = MAXLEN;
|
|
char content[MAXLEN + 1] = {0};
|
|
|
|
len += snprintf(content + len, maxLen - len, "{\n");
|
|
len += snprintf(content + len, maxLen - len, " \"deployed\": %d\n", deployed);
|
|
len += snprintf(content + len, maxLen - len, "}\n");
|
|
|
|
taosWriteFile(pFile, content, len);
|
|
taosFsyncFile(pFile);
|
|
taosCloseFile(&pFile);
|
|
|
|
char realfile[PATH_MAX] = {0};
|
|
snprintf(realfile, sizeof(realfile), "%s%s%s.json", pWrapper->path, TD_DIRSEP, pWrapper->name);
|
|
|
|
if (taosRenameFile(file, realfile) != 0) {
|
|
terrno = TAOS_SYSTEM_ERROR(errno);
|
|
dError("failed to rename %s since %s", file, terrstr());
|
|
return -1;
|
|
}
|
|
|
|
dInfo("successed to write %s, deployed:%d", realfile, deployed);
|
|
return 0;
|
|
}
|