Marc/server
1
0
Fork 0
forked from github/server
Code Issues Pull requests Projects Releases Wiki Activity

putting the crit-bit tree to use. findingfunctions is faster this way than that hand-rolled list

Browse source
This commit is contained in:
Enno Rehling 2012-05-14 17:02:15 -07:00
parent 53b9de957c
commit 2638f42eca
1 changed files with 16 additions and 19 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

35
src/util/functions.c
View file

@ -19,35 +19,32 @@ OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
#include <platform.h> #include <platform.h>
#include "functions.h" #include "functions.h"
#include <util/critbit.h>
/* libc includes */ /* libc includes */
#include <assert.h>
#include <stdlib.h> #include <stdlib.h>
#include <string.h> #include <string.h>
typedef struct function_list { static critbit_tree cb_functions;
struct function_list *next;
pf_generic fun;
const char *name;
} function_list;
static function_list *functionlist;
pf_generic get_function(const char *name) pf_generic get_function(const char *name)
{ {
function_list *fl = functionlist; const void * matches;
if (name == NULL) pf_generic result;
return NULL; if (cb_find_prefix(&cb_functions, name, strlen(name)+1, &matches, 1, 0)) {
while (fl && strcmp(fl->name, name) != 0) cb_get_kv(matches, &result, sizeof(result));
fl = fl->next; return result;
if (fl) }
return fl->fun;
return NULL; return NULL;
} }
void register_function(pf_generic fun, const char *name) void register_function(pf_generic fun, const char *name)
{ {
function_list *fl = (function_list *) malloc(sizeof(function_list)); char buffer[64];
fl->next = functionlist; size_t len = strlen(name);
fl->fun = fun;
fl->name = strdup(name); assert(len<sizeof(buffer)-sizeof(fun));
functionlist = fl; cb_new_kv(name, &fun, sizeof(fun), buffer);
cb_insert(&cb_functions, buffer, len+1+sizeof(fun));
} }