コード例 #1
0
FILE *my_fopen(const char *filename, int flags, myf MyFlags)
{
  FILE *fd;
  char type[5];
  char *dup_filename= NULL;
  DBUG_ENTER("my_fopen");
  DBUG_PRINT("my",("Name: '%s'  flags: %d  MyFlags: %d",
		   filename, flags, MyFlags));

  make_ftype(type,flags);

#ifdef _WIN32
  fd= my_win_fopen(filename, type);
#else
  fd= fopen(filename, type);
#endif
  if (fd != 0)
  {
    /*
      The test works if MY_NFILE < 128. The problem is that fileno() is char
      on some OS (SUNOS). Actually the filename save isn't that important
      so we can ignore if this doesn't work.
    */

    int filedesc= my_fileno(fd);
    if ((uint)filedesc >= my_file_limit)
    {
      mysql_mutex_lock(&THR_LOCK_open);
      my_stream_opened++;
      mysql_mutex_unlock(&THR_LOCK_open);
      DBUG_RETURN(fd);				/* safeguard */
    }
    dup_filename= my_strdup(key_memory_my_file_info, filename, MyFlags);
    if (dup_filename != NULL)
    {
      mysql_mutex_lock(&THR_LOCK_open);
      my_file_info[filedesc].name= dup_filename;
      my_stream_opened++;
      my_file_total_opened++;
      my_file_info[filedesc].type= STREAM_BY_FOPEN;
      mysql_mutex_unlock(&THR_LOCK_open);
      DBUG_PRINT("exit",("stream: 0x%lx", (long) fd));
      DBUG_RETURN(fd);
    }
    (void) my_fclose(fd,MyFlags);
    set_my_errno(ENOMEM);
  }
  else
    set_my_errno(errno);
  DBUG_PRINT("error",("Got error %d on open",my_errno()));
  if (MyFlags & (MY_FFNF | MY_FAE | MY_WME))
  {
    char errbuf[MYSYS_STRERROR_SIZE];
    my_error((flags & O_RDONLY) || (flags == O_RDONLY ) ? EE_FILENOTFOUND :
             EE_CANTCREATEFILE,
             MYF(0), filename,
             my_errno(), my_strerror(errbuf, sizeof(errbuf), my_errno()));
  }
  DBUG_RETURN((FILE*) 0);
} /* my_fopen */
コード例 #2
0
ファイル: my_fopen.c プロジェクト: Miguel-J/eneboo-core
FILE *my_fopen(const char *filename, int flags, myf MyFlags)
{
  FILE *fd;
  char type[5];
  DBUG_ENTER("my_fopen");
  DBUG_PRINT("my",("Name: '%s'  flags: %d  MyFlags: %d",
		   filename, flags, MyFlags));
  /* 
    if we are not creating, then we need to use my_access to make sure  
    the file exists since Windows doesn't handle files like "com1.sym" 
    very  well 
  */
#ifdef __WIN__
  if (check_if_legal_filename(filename))
  {
    errno= EACCES;
    fd= 0;
  }
  else
#endif
  {
    make_ftype(type,flags);
    fd = fopen(filename, type);
  }
  
  if (fd != 0)
  {
    /*
      The test works if MY_NFILE < 128. The problem is that fileno() is char
      on some OS (SUNOS). Actually the filename save isn't that important
      so we can ignore if this doesn't work.
    */
    if ((uint) fileno(fd) >= my_file_limit)
    {
      thread_safe_increment(my_stream_opened,&THR_LOCK_open);
      DBUG_RETURN(fd);				/* safeguard */
    }
    pthread_mutex_lock(&THR_LOCK_open);
    if ((my_file_info[fileno(fd)].name = (char*)
	 my_strdup(filename,MyFlags)))
    {
      my_stream_opened++;
      my_file_info[fileno(fd)].type = STREAM_BY_FOPEN;
      pthread_mutex_unlock(&THR_LOCK_open);
      DBUG_PRINT("exit",("stream: 0x%lx", (long) fd));
      DBUG_RETURN(fd);
    }
    pthread_mutex_unlock(&THR_LOCK_open);
    (void) my_fclose(fd,MyFlags);
    my_errno=ENOMEM;
  }
  else
    my_errno=errno;
  DBUG_PRINT("error",("Got error %d on open",my_errno));
  if (MyFlags & (MY_FFNF | MY_FAE | MY_WME))
    my_error((flags & O_RDONLY) || (flags == O_RDONLY ) ? EE_FILENOTFOUND :
	     EE_CANTCREATEFILE,
	     MYF(ME_BELL+ME_WAITTANG), filename, my_errno);
  DBUG_RETURN((FILE*) 0);
} /* my_fopen */
コード例 #3
0
ファイル: my_fopen.c プロジェクト: 4T-Shirt/mysql
FILE *my_fopen(const char *filename, int flags, myf MyFlags)
{
  FILE *fd;
  char type[5];
  DBUG_ENTER("my_fopen");
  DBUG_PRINT("my",("Name: '%s'  flags: %d  MyFlags: %d",
		   filename, flags, MyFlags));

  make_ftype(type,flags);

#ifdef _WIN32
  fd= my_win_fopen(filename, type);
#else
  fd= fopen(filename, type);
#endif
  if (fd != 0)
  {
    /*
      The test works if MY_NFILE < 128. The problem is that fileno() is char
      on some OS (SUNOS). Actually the filename save isn't that important
      so we can ignore if this doesn't work.
    */

    int filedesc= my_fileno(fd);
    if ((uint)filedesc >= my_file_limit)
    {
      thread_safe_increment(my_stream_opened,&THR_LOCK_open);
      DBUG_RETURN(fd);				/* safeguard */
    }
    mysql_mutex_lock(&THR_LOCK_open);
    if ((my_file_info[filedesc].name= (char*)
	 my_strdup(filename,MyFlags)))
    {
      my_stream_opened++;
      my_file_total_opened++;
      my_file_info[filedesc].type= STREAM_BY_FOPEN;
      mysql_mutex_unlock(&THR_LOCK_open);
      DBUG_PRINT("exit",("stream: 0x%lx", (long) fd));
      DBUG_RETURN(fd);
    }
    mysql_mutex_unlock(&THR_LOCK_open);
    (void) my_fclose(fd,MyFlags);
    my_errno=ENOMEM;
  }
  else
    my_errno=errno;
  DBUG_PRINT("error",("Got error %d on open",my_errno));
  if (MyFlags & (MY_FFNF | MY_FAE | MY_WME))
    my_error((flags & O_RDONLY) || (flags == O_RDONLY ) ? EE_FILENOTFOUND :
	     EE_CANTCREATEFILE,
	     MYF(ME_BELL+ME_WAITTANG), filename, my_errno);
  DBUG_RETURN((FILE*) 0);
} /* my_fopen */
コード例 #4
0
FILE *my_fdopen(File Filedes, const char *name, int Flags, myf MyFlags)
{
  FILE *fd;
  char type[5];
  DBUG_ENTER("my_fdopen");
  DBUG_PRINT("my",("Fd: %d  Flags: %d  MyFlags: %d",
		   Filedes, Flags, MyFlags));

  make_ftype(type,Flags);
#ifdef _WIN32
  fd= my_win_fdopen(Filedes, type);
#else
  fd= fdopen(Filedes, type);
#endif
  if (!fd)
  {
    set_my_errno(errno);
    if (MyFlags & (MY_FAE | MY_WME))
    {
      char errbuf[MYSYS_STRERROR_SIZE];
      my_error(EE_CANT_OPEN_STREAM, MYF(0),
               my_errno(), my_strerror(errbuf, sizeof(errbuf), my_errno()));
    }
  }
  else
  {
    mysql_mutex_lock(&THR_LOCK_open);
    my_stream_opened++;
    if ((uint) Filedes < (uint) my_file_limit)
    {
      if (my_file_info[Filedes].type != UNOPEN)
      {
        my_file_opened--;		/* File is opened with my_open ! */
      }
      else
      {
        my_file_info[Filedes].name= my_strdup(key_memory_my_file_info,
                                              name,MyFlags);
      }
      my_file_info[Filedes].type = STREAM_BY_FDOPEN;
    }
    mysql_mutex_unlock(&THR_LOCK_open);
  }

  DBUG_PRINT("exit",("stream: 0x%lx", (long) fd));
  DBUG_RETURN(fd);
} /* my_fdopen */
コード例 #5
0
ファイル: my_fopen.c プロジェクト: Miguel-J/eneboo-core
FILE *my_fdopen(File Filedes, const char *name, int Flags, myf MyFlags)
{
  FILE *fd;
  char type[5];
  DBUG_ENTER("my_fdopen");
  DBUG_PRINT("my",("Fd: %d  Flags: %d  MyFlags: %d",
		   Filedes, Flags, MyFlags));

  make_ftype(type,Flags);
  if ((fd = fdopen(Filedes, type)) == 0)
  {
    my_errno=errno;
    if (MyFlags & (MY_FAE | MY_WME))
      my_error(EE_CANT_OPEN_STREAM, MYF(ME_BELL+ME_WAITTANG),errno);
  }
  else
  {
    pthread_mutex_lock(&THR_LOCK_open);
    my_stream_opened++;
    if ((uint) Filedes < (uint) my_file_limit)
    {
      if (my_file_info[Filedes].type != UNOPEN)
      {
        my_file_opened--;		/* File is opened with my_open ! */
      }
      else
      {
        my_file_info[Filedes].name=  my_strdup(name,MyFlags);
      }
      my_file_info[Filedes].type = STREAM_BY_FDOPEN;
    }
    pthread_mutex_unlock(&THR_LOCK_open);
  }

  DBUG_PRINT("exit",("stream: 0x%lx", (long) fd));
  DBUG_RETURN(fd);
} /* my_fdopen */