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82 lines
2.3 KiB
C
82 lines
2.3 KiB
C
/* Copyright (c) 2000, 2006, 2007 MySQL AB, 2009 Sun Microsystems, Inc.
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Use is subject to license terms.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; version 2 of the License.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1335 USA */
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/* Quicker interface to read & write. Used with my_nosys.h */
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#include "mysys_priv.h"
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#include "my_nosys.h"
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#ifdef _WIN32
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extern size_t my_win_read(File Filedes,uchar *Buffer,size_t Count);
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#endif
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size_t my_quick_read(File Filedes,uchar *Buffer,size_t Count,myf MyFlags)
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{
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size_t readbytes;
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#ifdef _WIN32
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readbytes= my_win_read(Filedes, Buffer, Count);
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#else
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readbytes= read(Filedes, Buffer, Count);
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#endif
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if(readbytes != Count)
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{
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#ifndef DBUG_OFF
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if ((readbytes == 0 || readbytes == (size_t) -1) && errno == EINTR)
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{
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DBUG_PRINT("error", ("my_quick_read() was interrupted and returned %d"
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". This function does not retry the read!",
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(int) readbytes));
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}
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#endif
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my_errno=errno;
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return readbytes;
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}
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return (MyFlags & (MY_NABP | MY_FNABP)) ? 0 : readbytes;
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}
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size_t my_quick_write(File Filedes, const uchar *Buffer, size_t Count)
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{
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#ifdef _WIN32
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return my_win_write(Filedes, Buffer, Count);
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#else
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#ifndef DBUG_OFF
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size_t writtenbytes;
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#endif
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if ((
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#ifndef DBUG_OFF
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writtenbytes =
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#endif
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(size_t) write(Filedes,Buffer,Count)) != Count)
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{
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#ifndef DBUG_OFF
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if ((writtenbytes == 0 || writtenbytes == (size_t) -1) && errno == EINTR)
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{
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DBUG_PRINT("error", ("my_quick_write() was interrupted and returned %d"
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". This function does not retry the write!",
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(int) writtenbytes));
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}
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#endif
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my_errno=errno;
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return (size_t) -1;
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}
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return 0;
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#endif
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}
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