my_append.c
上传用户:romrleung
上传日期:2022-05-23
资源大小:18897k
文件大小:2k
- /* Copyright (C) 2000 MySQL AB
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
- 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. See the
- GNU General Public License for more details.
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
- #define USES_TYPES /* sys/types is included */
- #include "mysys_priv.h"
- #include <sys/stat.h>
- #include <m_string.h>
- #if defined(HAVE_UTIME_H)
- #include <utime.h>
- #elif defined(HAVE_SYS_UTIME_H)
- #include <sys/utime.h>
- #elif !defined(HPUX10)
- struct utimbuf {
- time_t actime;
- time_t modtime;
- };
- #endif
- /* Append a file to another */
- int my_append(const char *from, const char *to, myf MyFlags)
- /* Dont set MY_FNABP or MY_NABP bits on
- when calling this funktion */
- {
- uint Count;
- File from_file,to_file;
- char buff[IO_SIZE];
- DBUG_ENTER("my_append");
- DBUG_PRINT("my",("from %s to %s MyFlags %d", from, to, MyFlags));
- from_file=to_file= -1;
- if ((from_file=my_open(from,O_RDONLY,MyFlags)) >= 0)
- {
- if ((to_file=my_open(to,O_APPEND | O_WRONLY,MyFlags)) >= 0)
- {
- while ((Count=my_read(from_file,buff,IO_SIZE,MyFlags)) != 0)
- if (Count == (uint) -1 ||
- my_write(to_file,buff,Count,MYF(MyFlags | MY_NABP)))
- goto err;
- if (my_close(from_file,MyFlags) | my_close(to_file,MyFlags))
- DBUG_RETURN(-1); /* Error on close */
- DBUG_RETURN(0);
- }
- }
- err:
- if (from_file >= 0) VOID(my_close(from_file,MyFlags));
- if (to_file >= 0) VOID(my_close(to_file,MyFlags));
- DBUG_RETURN(-1);
- }