sorted_queue.[hc]: pop_compare_func support argument

HISTORY

@@ -1,4 +1,7 @@
 
+Version 1.68  2023-07-05
+  * sorted_queue.[hc]: pop_compare_func support argument
+
 Version 1.67  2023-05-29
   * lc_pair in struct fc_queue change to lcp
   * sorted queue use double link chain for quick push

src/sorted_queue.c

@@ -18,21 +18,23 @@
 #include "pthread_func.h"
 #include "sorted_queue.h"
 
-int sorted_queue_init_ex(struct sorted_queue *sq, const int dlink_offset,
+int sorted_queue_init(struct sorted_queue *sq, const int dlink_offset,
         int (*push_compare_func)(const void *data1, const void *data2),
-        int (*pop_compare_func)(const void *data, const void *less_equal))
+        int (*pop_compare_func)(const void *data, const
+            void *less_equal, void *arg), void *arg)
 {
-	int result;
+    int result;
 
-	if ((result=init_pthread_lock_cond_pair(&sq->lcp)) != 0) {
-		return result;
-	}
+    if ((result=init_pthread_lock_cond_pair(&sq->lcp)) != 0) {
+        return result;
+    }
 
     FC_INIT_LIST_HEAD(&sq->head);
     sq->dlink_offset = dlink_offset;
+    sq->arg = arg;
     sq->push_compare_func = push_compare_func;
     sq->pop_compare_func = pop_compare_func;
-	return 0;
+    return 0;
 }
 
 void sorted_queue_destroy(struct sorted_queue *sq)
@@ -102,7 +104,7 @@ void *sorted_queue_pop_ex(struct sorted_queue *sq,
 
         current = sq->head.next;
         data = FC_SORTED_QUEUE_DATA_PTR(sq, current);
-        if (sq->pop_compare_func(data, less_equal) <= 0) {
+        if (sq->pop_compare_func(data, less_equal, sq->arg) <= 0) {
             fc_list_del_init(current);
         } else {
             data = NULL;
@@ -136,14 +138,14 @@ void sorted_queue_pop_to_chain_ex(struct sorted_queue *sq,
         } else {
             current = sq->head.next;
             if (sq->pop_compare_func(FC_SORTED_QUEUE_DATA_PTR(
-                        sq, current), less_equal) <= 0)
+                        sq, current), less_equal, sq->arg) <= 0)
             {
                 head->next = current;
                 current->prev = head;
                 current = current->next;
                 while (current != &sq->head && sq->pop_compare_func(
                             FC_SORTED_QUEUE_DATA_PTR(sq, current),
-                            less_equal) <= 0)
+                            less_equal, sq->arg) <= 0)
                 {
                     current = current->next;
                 }

src/sorted_queue.h

@@ -27,8 +27,10 @@ struct sorted_queue
     struct fc_list_head head;
     pthread_lock_cond_pair_t lcp;
     int dlink_offset;
+    void *arg;
     int (*push_compare_func)(const void *data1, const void *data2);
-    int (*pop_compare_func)(const void *data, const void *less_equal);
+    int (*pop_compare_func)(const void *data,
+            const void *less_equal, void *arg);
 };
 
 #define FC_SORTED_QUEUE_DLINK_PTR(sq, data) \
@@ -41,17 +43,10 @@ struct sorted_queue
 extern "C" {
 #endif
 
-int sorted_queue_init_ex(struct sorted_queue *sq, const int dlink_offset,
+int sorted_queue_init(struct sorted_queue *sq, const int dlink_offset,
         int (*push_compare_func)(const void *data1, const void *data2),
-        int (*pop_compare_func)(const void *data, const void *less_equal));
-
-static inline int sorted_queue_init(struct sorted_queue *sq,
-        const int dlink_offset, int (*compare_func)
-        (const void *data1, const void *data2))
-{
-    return sorted_queue_init_ex(sq, dlink_offset,
-            compare_func, compare_func);
-}
+        int (*pop_compare_func)(const void *data, const
+            void *less_equal, void *arg), void *arg);
 
 void sorted_queue_destroy(struct sorted_queue *sq);
 

src/tests/test_sorted_queue.c

@@ -36,11 +36,18 @@ typedef struct {
 static DoubleLinkNumber *numbers;
 static struct sorted_queue sq;
 
-static int compare_func(const void *p1, const void *p2)
+static int push_compare_func(const void *p1, const void *p2)
 {
     return ((DoubleLinkNumber *)p1)->n - ((DoubleLinkNumber *)p2)->n;
 }
 
+static int pop_compare_func(const void *data,
+        const void *less_equal, void *arg)
+{
+    return ((DoubleLinkNumber *)data)->n -
+        ((DoubleLinkNumber *)less_equal)->n;
+}
+
 void set_rand_numbers(const int multiple)
 {
     int i;
@@ -175,7 +182,8 @@ int main(int argc, char *argv[])
     srand(time(NULL));
 
     if ((result=sorted_queue_init(&sq, (long)(&((DoubleLinkNumber *)
-                            NULL)->dlink), compare_func)) != 0)
+                            NULL)->dlink), push_compare_func,
+                    pop_compare_func, NULL)) != 0)
     {
         return result;
     }