1 files changed, 40 insertions, 0 deletions
diff --git a/src/shared/fdset.h b/src/shared/fdset.h
new file mode 100644
index 0000000..d31062b
--- /dev/null
+++ b/src/shared/fdset.h
@@ -0,0 +1,40 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
+#pragma once
+
+#include <stdbool.h>
+
+#include "hashmap.h"
+#include "macro.h"
+#include "set.h"
+
+typedef struct FDSet FDSet;
+
+FDSet* fdset_new(void);
+FDSet* fdset_free(FDSet *s);
+
+int fdset_put(FDSet *s, int fd);
+int fdset_put_dup(FDSet *s, int fd);
+
+bool fdset_contains(FDSet *s, int fd);
+int fdset_remove(FDSet *s, int fd);
+
+int fdset_new_array(FDSet **ret, const int *fds, size_t n_fds);
+int fdset_new_fill(FDSet **ret);
+int fdset_new_listen_fds(FDSet **ret, bool unset);
+
+int fdset_cloexec(FDSet *fds, bool b);
+
+int fdset_close_others(FDSet *fds);
+
+unsigned fdset_size(FDSet *fds);
+bool fdset_isempty(FDSet *fds);
+
+int fdset_iterate(FDSet *s, Iterator *i);
+
+int fdset_steal_first(FDSet *fds);
+
+#define FDSET_FOREACH(fd, fds, i) \
+        for ((i) = ITERATOR_FIRST, (fd) = fdset_iterate((fds), &(i)); (fd) >= 0; (fd) = fdset_iterate((fds), &(i)))
+
+DEFINE_TRIVIAL_CLEANUP_FUNC(FDSet*, fdset_free);
+#define _cleanup_fdset_free_ _cleanup_(fdset_freep)