src/shared/fdset.h

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