diff options
Diffstat (limited to 'mansearch.c')
| -rw-r--r-- | mansearch.c | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/mansearch.c b/mansearch.c index a4348d64..b6c00a9a 100644 --- a/mansearch.c +++ b/mansearch.c @@ -19,6 +19,7 @@ #include "config.h" #endif +#include <sys/mman.h> #include <assert.h> #include <fcntl.h> #include <getopt.h> @@ -101,6 +102,53 @@ static void sql_regexp(sqlite3_context *context, 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, const struct manpaths *paths, int argc, char *argv[], |