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+++ utils.h
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+/*
+ * Copyright (c) 2022 Omar Polo <op@omarpolo.com>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef UTILS_H
+#define UTILS_H
+
+int		 mark_nonblock(int);
+
+int		 has_prefix(const char*, const char*);
+int		 has_suffix(const char *, const char *);
+int		 unicode_isspace(uint32_t);
+int		 unicode_isgraph(uint32_t);
+
+int		 dispatch_imsg(struct imsgev *, short, imsg_handlerfn **, size_t);
+int		 imsg_compose_event(struct imsgev *, uint16_t, uint32_t, pid_t, int, const void *, uint16_t);
+
+void		*hash_alloc(size_t, void *);
+void		*hash_calloc(size_t, size_t, void *);
+void		 hash_free(void *, void *);
+
+#endif /* UTILS_H */