===================================================================
RCS file: /cvsrepo/anoncvs/cvs/src/usr.bin/mandoc/mansearch.c,v
retrieving revision 1.18
retrieving revision 1.19
diff -c -r1.18 -r1.19
*** src/usr.bin/mandoc/mansearch.c	2014/04/10 02:45:04	1.18
--- src/usr.bin/mandoc/mansearch.c	2014/04/11 15:45:39	1.19
***************
*** 1,4 ****
! /*	$Id: mansearch.c,v 1.18 2014/04/10 02:45:04 schwarze Exp $ */
  /*
   * Copyright (c) 2012 Kristaps Dzonsons <kristaps@bsd.lv>
   * Copyright (c) 2013, 2014 Ingo Schwarze <schwarze@openbsd.org>
--- 1,4 ----
! /*	$Id: mansearch.c,v 1.19 2014/04/11 15:45:39 schwarze Exp $ */
  /*
   * Copyright (c) 2012 Kristaps Dzonsons <kristaps@bsd.lv>
   * Copyright (c) 2013, 2014 Ingo Schwarze <schwarze@openbsd.org>
***************
*** 15,20 ****
--- 15,21 ----
   * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
   * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
   */
+ #include <sys/mman.h>
  #include <assert.h>
  #include <fcntl.h>
  #include <getopt.h>
***************
*** 91,96 ****
--- 92,144 ----
  static	void		 sql_regexp(sqlite3_context *context,
  				int argc, sqlite3_value **argv);
  static	char		*sql_statement(const struct expr *);
+ 
+ int
+ mansearch_setup(int start)
+ {
+ 	static void	*pagecache;
+ 	int		 c;
+ 
+ #define	PC_PAGESIZE	1280
+ #define	PC_NUMPAGES	256
+ 
+ 	if (start) {
+ 		if (NULL != pagecache) {
+ 			fprintf(stderr, "pagecache already enabled\n");
+ 			return((int)MANDOCLEVEL_BADARG);
+ 		}
+ 
+ 		pagecache = mmap(NULL, PC_PAGESIZE * PC_NUMPAGES,
+ 		    PROT_READ | PROT_WRITE, MAP_ANON, -1, 0);
+ 
+ 		if (MAP_FAILED == pagecache) {
+ 			perror("mmap");
+ 			pagecache = NULL;
+ 			return((int)MANDOCLEVEL_SYSERR);
+ 		}
+ 
+ 		c = sqlite3_config(SQLITE_CONFIG_PAGECACHE,
+ 		    pagecache, PC_PAGESIZE, PC_NUMPAGES);
+ 
+ 		if (SQLITE_OK == c)
+ 			return((int)MANDOCLEVEL_OK);
+ 
+ 		fprintf(stderr, "pagecache: %s\n", sqlite3_errstr(c));
+ 
+ 	} else if (NULL == pagecache) {
+ 		fprintf(stderr, "pagecache missing\n");
+ 		return((int)MANDOCLEVEL_BADARG);
+ 	}
+ 
+ 	if (-1 == munmap(pagecache, PC_PAGESIZE * PC_NUMPAGES)) {
+ 		perror("munmap");
+ 		pagecache = NULL;
+ 		return((int)MANDOCLEVEL_SYSERR);
+ 	}
+ 
+ 	pagecache = NULL;
+ 	return((int)MANDOCLEVEL_OK);
+ }
  
  int
  mansearch(const struct mansearch *search,