提交 1405d825 编写于 作者: S Shuduo Sang

emulate file operation random fail.

[TD-792]
上级 d272ee1f
......@@ -24,3 +24,7 @@ ENDIF ()
IF (TD_MEM_CHECK)
ADD_DEFINITIONS(-DTAOS_MEM_CHECK)
ENDIF ()
IF (TD_RANDOM_FILE_FAIL)
ADD_DEFINITIONS(-DTAOS_RANDOM_FILE_FAIL)
ENDIF ()
......@@ -31,3 +31,8 @@ IF (${MEM_CHECK} MATCHES "true")
SET(TD_MEM_CHECK TRUE)
MESSAGE(STATUS "build with memory check")
ENDIF ()
IF (${RANDOM_FILE_FAIL} MATCHES "true")
SET(TD_RANDOM_FILE_FAIL TRUE)
MESSAGE(STATUS "build with random-file-fail enabled")
ENDIF ()
/*
* 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/>.
*/
#ifndef TDENGINE_TFILE_H
#define TDENGINE_TFILE_H
#ifdef TAOS_RANDOM_FILE_FAIL
ssize_t taos_tread(int fd, void *buf, size_t count);
ssize_t taos_twrite(int fd, void *buf, size_t count);
#define tread(fd, buf, count) taos_tread(fd, buf, count)
#define twrite(fd, buf, count) taos_twrite(fd, buf, count)
#endif // TAOS_RANDOM_FILE_FAIL
#endif // TDENGINE_TFILE_H
/*
* 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 <stdio.h>
#include <stdlib.h>
#include <error.h>
#include <errno.h>
#include <stdarg.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include "os.h"
#define RANDOM_FACTOR 5
ssize_t taos_tread(int fd, void *buf, size_t count)
{
#ifdef TAOS_RANDOM_FILE_FAIL
if (rand() % RANDOM_FACTOR == 0) {
errno = EIO;
return -1;
}
#endif
return tread(fd, buf, count);
}
ssize_t taos_twrite(int fd, void *buf, size_t count)
{
#ifdef TAOS_RANDOM_FILE_FAIL
if (rand() % RANDOM_FACTOR == 0) {
errno = EIO;
return -1;
}
#endif
return twrite(fd, buf, count);
}
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