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.

8 files changed, 16 insertions, 15 deletions

diff --git a/libman.h b/libman.h
index 658dddb6..f1cc1c7c 100644
--- a/libman.h
+++ b/libman.h
@@ -43,7 +43,6 @@ void		  man_head_alloc(struct roff_man *, int, int, int);
 void		  man_body_alloc(struct roff_man *, int, int, int);
 void		  man_elem_alloc(struct roff_man *, int, int, int);
 void		  man_node_delete(struct roff_man *, struct roff_node *);
-void		  man_hash_init(void);
 int		  man_hash_find(const char *);
 void		  man_macroend(struct roff_man *);
 void		  man_valid_post(struct roff_man *);
diff --git a/libmandoc.h b/libmandoc.h
index 779e3c11..c46fa691 100644
--- a/libmandoc.h
+++ b/libmandoc.h
@@ -58,6 +58,7 @@ void		 mdoc_free(struct roff_man *);
 struct roff_man	*mdoc_alloc(struct roff *, struct mparse *,
 			const char *, int);
 void		 mdoc_reset(struct roff_man *);
+void		 mdoc_hash_init(void);
 int		 mdoc_parseln(struct roff_man *, int, char *, int);
 void		 mdoc_endparse(struct roff_man *);
 void		 mdoc_addspan(struct roff_man *, const struct tbl_span *);
@@ -67,6 +68,7 @@ void		 man_free(struct roff_man *);
 struct roff_man	*man_alloc(struct roff *, struct mparse *,
 			const char *, int);
 void		 man_reset(struct roff_man *);
+void		 man_hash_init(void);
 int		 man_parseln(struct roff_man *, int, char *, int);
 void		 man_endparse(struct roff_man *);
 void		 man_addspan(struct roff_man *, const struct tbl_span *);
diff --git a/libmdoc.h b/libmdoc.h
index da14cbd4..24fa4e04 100644
--- a/libmdoc.h
+++ b/libmdoc.h
@@ -80,7 +80,6 @@ struct roff_node *mdoc_endbody_alloc(struct roff_man *, int, int, int,
 			struct roff_node *, enum mdoc_endbody);
 void		  mdoc_node_delete(struct roff_man *, struct roff_node *);
 void		  mdoc_node_relink(struct roff_man *, struct roff_node *);
-void		  mdoc_hash_init(void);
 int		  mdoc_hash_find(const char *);
 const char	 *mdoc_a2att(const char *);
 const char	 *mdoc_a2lib(const char *);
diff --git a/man.c b/man.c
index 337f9a99..364e58e7 100644
--- a/man.c
+++ b/man.c
@@ -101,8 +101,6 @@ man_alloc(struct roff *roff, struct mparse *parse,
 	struct roff_man	*p;
 
 	p = mandoc_calloc(1, sizeof(*p));
-
-	man_hash_init();
 	p->parse = parse;
 	p->defos = defos;
 	p->quick = quick;
diff --git a/man_hash.c b/man_hash.c
index 52d67a2b..a0aed934 100644
--- a/man_hash.c
+++ b/man_hash.c
@@ -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);
diff --git a/mdoc.c b/mdoc.c
index ba9cccc4..cb204910 100644
--- a/mdoc.c
+++ b/mdoc.c
@@ -187,7 +187,6 @@ mdoc_alloc(struct roff *roff, struct mparse *parse,
 	p->quick = quick;
 	p->roff = roff;
 
-	mdoc_hash_init();
 	mdoc_alloc1(p);
 	return(p);
 }
diff --git a/mdoc_hash.c b/mdoc_hash.c
index 2615c764..7f7a47b1 100644
--- a/mdoc_hash.c
+++ b/mdoc_hash.c
@@ -32,16 +32,15 @@
 static	unsigned char	 table[27 * 12];
 
 
-/*
- * XXX - this hash has global scope, so if intended for use as a library
- * with multiple callers, it will need re-invocation protection.
- */
 void
 mdoc_hash_init(void)
 {
 	int		 i, j, major;
 	const char	*p;
 
+	if (*table != '\0')
+		return;
+
 	memset(table, UCHAR_MAX, sizeof(table));
 
 	for (i = 0; i < (int)MDOC_MAX; i++) {
diff --git a/read.c b/read.c
index c0b566f5..16687bce 100644
--- a/read.c
+++ b/read.c
@@ -296,6 +296,7 @@ choose_parser(struct mparse *curp)
 			    MPARSE_QUICK & curp->options ? 1 : 0);
 		else
 			curp->man->macroset = MACROSET_MDOC;
+		mdoc_hash_init();
 		return;
 	}
 
@@ -307,6 +308,7 @@ choose_parser(struct mparse *curp)
 		    MPARSE_QUICK & curp->options ? 1 : 0);
 	else
 		curp->man->macroset = MACROSET_MAN;
+	man_hash_init();
 }
 
 /*
@@ -890,14 +892,18 @@ mparse_alloc(int options, enum mandoclevel wlevel, mandocmsg mmsg,
 
 	curp->mchars = mchars;
 	curp->roff = roff_alloc(curp, curp->mchars, options);
-	if (curp->options & MPARSE_MDOC)
+	if (curp->options & MPARSE_MDOC) {
 		curp->man = mdoc_alloc(
 		    curp->roff, curp, curp->defos,
 		    curp->options & MPARSE_QUICK ? 1 : 0);
-	if (curp->options & MPARSE_MAN)
+		mdoc_hash_init();
+	}
+	if (curp->options & MPARSE_MAN) {
 		curp->man = man_alloc(
 		    curp->roff, curp, curp->defos,
 		    curp->options & MPARSE_QUICK ? 1 : 0);
+		man_hash_init();
+	}
 
 	return(curp);
 }