src/shared/fdset.h

   1 /* SPDX-License-Identifier: LGPL-2.1-or-later */
   2 #pragma once
   3
   4 #include "forward.h"
   5 #include "iterator.h"
   6
   7 FDSet* fdset_new(void);
   8 FDSet* fdset_free(FDSet *s);
   9 FDSet* fdset_free_async(FDSet *s);
  10
  11 int fdset_put(FDSet *s, int fd);
  12 int fdset_consume(FDSet *s, int fd);
  13 int fdset_put_dup(FDSet *s, int fd);
  14
  15 bool fdset_contains(FDSet *s, int fd);
  16 int fdset_remove(FDSet *s, int fd);
  17
  18 int fdset_new_array(FDSet **ret, const int *fds, size_t n_fds);
  19 int fdset_new_fill(int filter_cloexec, FDSet **ret);
  20 int fdset_new_listen_fds(FDSet **ret, bool unset);
  21
  22 int fdset_cloexec(FDSet *fds, bool b);
  23
  24 int fdset_to_array(FDSet *fds, int **ret);
  25
  26 int fdset_close_others(FDSet *fds);
  27
  28 unsigned fdset_size(FDSet *fds);
  29 bool fdset_isempty(FDSet *fds);
  30
  31 int fdset_iterate(FDSet *s, Iterator *i);
  32
  33 int fdset_steal_first(FDSet *fds);
  34
  35 void fdset_close(FDSet *fds, bool async);
  36
  37 #define _FDSET_FOREACH(fd, fds, i) \
  38         for (Iterator i = ITERATOR_FIRST; ((fd) = fdset_iterate((fds), &i)) >= 0; )
  39 #define FDSET_FOREACH(fd, fds) \
  40         _FDSET_FOREACH(fd, fds, UNIQ_T(i, UNIQ))
  41
  42 DEFINE_TRIVIAL_CLEANUP_FUNC(FDSet*, fdset_free);
  43 #define _cleanup_fdset_free_ _cleanup_(fdset_freep)
  44
  45 DEFINE_TRIVIAL_CLEANUP_FUNC(FDSet*, fdset_free_async);