add feature for sorting list.

datalink814_ge/src/util/list.c

@@ -12,6 +12,7 @@
 // Copyright (c) 2010 TJ Holowaychuk <[email protected]>
 //
 
+#include <stdint.h>
 #include "list.h"
 
 /*
@@ -41,7 +42,7 @@ list_new(void) {
   self->head = NULL;
   self->tail = NULL;
   self->free = NULL;
-  self->match = NULL;
+  self->compare = NULL;
   self->len = 0;
   return self;
 }
@@ -181,8 +182,8 @@ list_find(list_t *self, void *val) {
   list_node_t *node;
 
   while ((node = list_iterator_next(it))) {
-    if (self->match) {
-      if (self->match(val, node->val)) {
+    if (self->compare) {
+      if (self->compare(val, node->val) == 0) {
         list_iterator_destroy(it);
         return node;
       }

datalink814_ge/src/util/list.h

@@ -13,7 +13,6 @@ extern "C" {
 #endif
 
 #include <stdlib.h>
-#include <stdbool.h>
 #include <stdint.h>
 
 /*
@@ -44,7 +43,7 @@ typedef struct {
   list_node_t *tail;
   uint32_t len;
   void (*free)(void *val);
-  bool (*match)(void *a, void *b);
+  int8_t (*compare)(void *a, void *b);
 } list_t;
 
 /*