kc3-lang/gnulib/lib/close-hook.h

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• Hash : b2e2010c
  Author :
  Date : 2010-01-01T10:31:12
  

  update nearly all FSF copyright year lists to include 2010
  
  Use the same procedure as for 2009, outlined in
  http://thread.gmane.org/gmane.comp.lib.gnulib.bugs/20081
  

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• lib/close-hook.h

• /* Hook for making the close() function extensible.
     Copyright (C) 2009, 2010 Free Software Foundation, Inc.
  
     This program is free software: you can redistribute it and/or modify it
     under the terms of the GNU Lesser General Public License as published
     by the Free Software Foundation; either version 3 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
     Lesser General Public License for more details.
  
     You should have received a copy of the GNU Lesser General Public License
     along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  
  
  #ifndef CLOSE_HOOK_H
  #define CLOSE_HOOK_H
  
  #ifdef __cplusplus
  extern "C" {
  #endif
  
  
  /* Currently, this entire code is only needed for the handling of sockets
     on native Windows platforms.  */
  #if WINDOWS_SOCKETS
  
  
  /* An element of the list of close hooks.
     The fields of this structure are considered private.  */
  struct close_hook
  {
    /* Doubly linked list.  */
    struct close_hook *private_next;
    struct close_hook *private_prev;
    /* Function that treats the types of FD that it knows about and calls
       execute_close_hooks (FD, REMAINING_LIST) as a fallback.  */
    int (*private_fn) (int fd, const struct close_hook *remaining_list);
  };
  
  /* This type of function closes FD, applying special knowledge for the FD
     types it knows about, and calls execute_close_hooks (FD, REMAINING_LIST)
     for the other FD types.  */
  typedef int (*close_hook_fn) (int fd, const struct close_hook *remaining_list);
  
  /* Execute the close hooks in REMAINING_LIST.
     Return 0 or -1, like close() would do.  */
  extern int execute_close_hooks (int fd, const struct close_hook *remaining_list);
  
  /* Execute all close hooks.
     Return 0 or -1, like close() would do.  */
  extern int execute_all_close_hooks (int fd);
  
  /* Add a function to the list of close hooks.
     The LINK variable points to a piece of memory which is guaranteed to be
     accessible until the corresponding call to unregister_close_hook.  */
  extern void register_close_hook (close_hook_fn hook, struct close_hook *link);
  
  /* Removes a function from the list of close hooks.  */
  extern void unregister_close_hook (struct close_hook *link);
  
  
  #endif
  
  
  #ifdef __cplusplus
  }
  #endif
  
  #endif /* CLOSE_HOOK_H */
  

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