Move mdoc_hash_init() and man_hash_init() to libmandoc.h

and call them from mparse_alloc() and choose_parser(),
preparing unified allocation of struct roff_man.

1 files changed, 4 insertions, 5 deletions

diff --git a/man_hash.c b/man_hash.c
index 8726614a..c3023799 100644
--- a/man_hash.c
+++ b/man_hash.c
@@ -1,4 +1,4 @@
-/*	$Id: man_hash.c,v 1.31 2015/04/02 22:48:17 schwarze Exp $ */
+/*	$Id: man_hash.c,v 1.32 2015/04/18 17:01:58 schwarze Exp $ */
 /*
  * Copyright (c) 2008, 2009, 2010 Kristaps Dzonsons <kristaps@bsd.lv>
  *
@@ -47,15 +47,14 @@
 static	unsigned char	 table[26 * HASH_DEPTH];
 
 
-/*
- * XXX - this hash has global scope, so if intended for use as a library
- * with multiple callers, it will need re-invocation protection.
- */
 void
 man_hash_init(void)
 {
 	int		 i, j, x;
 
+	if (*table != '\0')
+		return;
+
 	memset(table, UCHAR_MAX, sizeof(table));
 
 	assert(MAN_MAX < UCHAR_MAX);