mirror of
https://github.com/VCMP-SqMod/SqMod.git
synced 2024-11-08 16:57:16 +01:00
91 lines
2.7 KiB
C
91 lines
2.7 KiB
C
/* Copyright (C) 2000 MySQL AB & MySQL Finland AB & TCX DataKonsult AB
|
|
|
|
This library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Library General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2 of the License, or (at your option) any later version.
|
|
|
|
This library 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
|
|
Library General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Library General Public
|
|
License along with this library; if not, write to the Free
|
|
Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
|
|
MA 02111-1301, USA */
|
|
|
|
#include "mysys_priv.h"
|
|
#include "mysys_err.h"
|
|
#include <errno.h>
|
|
|
|
|
|
/* Write a chunk of bytes to a file */
|
|
|
|
uint my_write(int Filedes, const unsigned char *Buffer, uint Count, myf MyFlags)
|
|
{
|
|
uint writenbytes,errors;
|
|
ulong written;
|
|
DBUG_ENTER("my_write");
|
|
DBUG_PRINT("my",("Fd: %d Buffer: %lx Count: %d MyFlags: %d",
|
|
Filedes, Buffer, Count, MyFlags));
|
|
errors=0; written=0L;
|
|
|
|
for (;;)
|
|
{
|
|
if ((writenbytes = (uint) write(Filedes, Buffer, Count)) == Count)
|
|
break;
|
|
if ((int) writenbytes != -1)
|
|
{ /* Safeguard */
|
|
written+=writenbytes;
|
|
Buffer+=writenbytes;
|
|
Count-=writenbytes;
|
|
}
|
|
my_errno=errno;
|
|
DBUG_PRINT("error",("Write only %d bytes, error: %d",
|
|
writenbytes,my_errno));
|
|
#ifndef NO_BACKGROUND
|
|
#ifdef THREAD
|
|
if (my_thread_var->abort)
|
|
MyFlags&= ~ MY_WAIT_IF_FULL; /* End if aborted by user */
|
|
#endif
|
|
if (my_errno == ENOSPC && (MyFlags & MY_WAIT_IF_FULL) &&
|
|
(uint) writenbytes != (uint) -1)
|
|
{
|
|
if (!(errors++ % MY_WAIT_GIVE_USER_A_MESSAGE))
|
|
my_error(EE_DISK_FULL,MYF(ME_BELL | ME_NOREFRESH),
|
|
my_filename(Filedes));
|
|
VOID(sleep(MY_WAIT_FOR_USER_TO_FIX_PANIC));
|
|
continue;
|
|
}
|
|
if (!writenbytes)
|
|
{
|
|
/* We may come here on an interrupt or if the file quote is exeeded */
|
|
if (my_errno == EINTR)
|
|
continue;
|
|
if (!errors++) /* Retry once */
|
|
{
|
|
errno=EFBIG; /* Assume this is the error */
|
|
continue;
|
|
}
|
|
}
|
|
else if ((uint) writenbytes != (uint) -1)
|
|
continue; /* Retry */
|
|
#endif
|
|
if (MyFlags & (MY_NABP | MY_FNABP))
|
|
{
|
|
if (MyFlags & (MY_WME | MY_FAE | MY_FNABP))
|
|
{
|
|
my_error(EE_WRITE, MYF(ME_BELL+ME_WAITTANG),
|
|
my_filename(Filedes),my_errno);
|
|
}
|
|
DBUG_RETURN(MY_FILE_ERROR); /* Error on read */
|
|
}
|
|
else
|
|
break; /* Return bytes written */
|
|
}
|
|
if (MyFlags & (MY_NABP | MY_FNABP))
|
|
DBUG_RETURN(0); /* Want only errors */
|
|
DBUG_RETURN(writenbytes+written);
|
|
} /* my_write */
|