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84 lines
2.2 KiB
C
84 lines
2.2 KiB
C
/* Copyright Abandoned 1996 TCX DataKonsult AB & Monty Program KB & Detron HB
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This file is public domain and comes with NO WARRANTY of any kind */
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#define USES_TYPES
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#include "mysys_priv.h"
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#include "mysys_err.h"
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#include <errno.h>
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#if defined(MSDOS) || defined(__WIN32__)
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#include <share.h>
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#endif
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/* Open a file */
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File my_open(const char *FileName, int Flags, myf MyFlags)
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/* Path-name of file */
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/* Read | write .. */
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/* Special flags */
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{
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File fd;
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DBUG_ENTER("my_open");
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DBUG_PRINT("my",("Name: '%s' Flags: %d MyFlags: %d",
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FileName, Flags, MyFlags));
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#if defined(MSDOS) || defined(__WIN32__)
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if (Flags & O_SHARE)
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fd = sopen((my_string) FileName, (Flags & ~O_SHARE) | O_BINARY, SH_DENYNO);
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else
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fd = open((my_string) FileName, Flags | O_BINARY);
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#elif !defined(NO_OPEN_3)
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fd = open(FileName, Flags, 0); /* Normal unix */
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#else
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fd = open((my_string) FileName, Flags);
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#endif
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if ((int) fd >= 0)
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{
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if ((int) fd >= MY_NFILE)
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DBUG_RETURN(fd); /* safeguard */
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pthread_mutex_lock(&THR_LOCK_open);
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if ((my_file_info[fd].name = (char*) my_strdup(FileName,MyFlags)))
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{
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my_file_opened++;
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my_file_info[fd].type = FILE_BY_OPEN;
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pthread_mutex_unlock(&THR_LOCK_open);
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DBUG_PRINT("exit",("fd: %d",fd));
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DBUG_RETURN(fd);
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}
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pthread_mutex_unlock(&THR_LOCK_open);
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(void) my_close(fd,MyFlags);
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my_errno=ENOMEM;
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}
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else
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my_errno=errno;
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DBUG_PRINT("error",("Got error %d on open",my_errno));
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if (MyFlags & (MY_FFNF | MY_FAE | MY_WME))
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my_error(EE_FILENOTFOUND, MYF(ME_BELL+ME_WAITTANG), FileName,my_errno);
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DBUG_RETURN(fd);
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} /* my_open */
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/* Close a file */
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int my_close(File fd, myf MyFlags)
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{
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int err;
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DBUG_ENTER("my_close");
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DBUG_PRINT("my",("fd: %d MyFlags: %d",fd, MyFlags));
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pthread_mutex_lock(&THR_LOCK_open);
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if ((err = close(fd)) != 0)
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{
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my_errno=errno;
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if (MyFlags & (MY_FAE | MY_WME))
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my_error(EE_BADCLOSE, MYF(ME_BELL+ME_WAITTANG),my_filename(fd),errno);
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}
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if (fd < MY_NFILE && my_file_info[fd].type != UNOPEN)
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{
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my_file_opened--;
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my_free(my_file_info[fd].name, MYF(0));
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my_file_info[fd].type = UNOPEN;
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}
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pthread_mutex_unlock(&THR_LOCK_open);
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DBUG_RETURN(err);
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} /* my_close */
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