Only update a contact if data changed

contact.c

@@ -23,6 +23,8 @@
 #include <stdlib.h>
 #include <string.h>
 
+#include <glib.h>
+
 #include "contact.h"
 
 struct p_contact_t {
@@ -96,16 +98,11 @@ const char * p_contact_status(const PContact contact)
     return contact->status;
 }
 
-int p_contact_names_equal(const PContact c1, const PContact c2)
-{
-    return strcmp(c1->name, c2->name);
-}
-
 int p_contacts_equal_deep(const PContact c1, const PContact c2)
 {
-    int name_eq = strcmp(c1->name, c2->name);
+    int name_eq = (g_strcmp0(c1->name, c2->name) == 0);
-    int show_eq = strcmp(c1->show, c2->show);
+    int show_eq = (g_strcmp0(c1->show, c2->show) == 0);
-    int status_eq = strcmp(c1->status, c2->status);
+    int status_eq = (g_strcmp0(c1->status, c2->status) == 0);
 
     return (name_eq && show_eq && status_eq);
 }

contact.h

@@ -32,7 +32,6 @@ void p_contact_free(PContact contact);
 const char * p_contact_name(PContact contact);
 const char * p_contact_show(PContact contact);
 const char * p_contact_status(PContact contact);
-int p_contact_names_equal(const PContact c1, const PContact c2);
 int p_contacts_equal_deep(const PContact c1, const PContact c2);
 
 #endif

contact_list.c

@@ -36,6 +36,7 @@ void contact_list_init(void)
 {
     ac = p_obj_autocomplete_new((PStrFunc)p_contact_name, 
                             (PCopyFunc)p_contact_copy,
+                            (PEqualDeepFunc)p_contacts_equal_deep,
                             (GDestroyNotify)p_contact_free);
 }
 

prof_autocomplete.c

@@ -34,20 +34,22 @@ struct p_autocomplete_t {
     gchar *search_str;
     PStrFunc str_func;
     PCopyFunc copy_func;
+    PEqualDeepFunc equal_deep_func;
     GDestroyNotify free_func;
 };
 
 static gchar * _search_from(PAutocomplete ac, GSList *curr);
 static const char *_str_func_default(const char *orig);
 static const char *_copy_func_default(const char *orig);
+static int _deep_equals_func_default(const char *o1, const char *o2);
 
 PAutocomplete p_autocomplete_new(void)
 {
-    return p_obj_autocomplete_new(NULL, NULL, NULL);
+    return p_obj_autocomplete_new(NULL, NULL, NULL, NULL);
 }
 
 PAutocomplete p_obj_autocomplete_new(PStrFunc str_func, PCopyFunc copy_func, 
-    GDestroyNotify free_func)
+    PEqualDeepFunc equal_deep_func, GDestroyNotify free_func)
 {
     PAutocomplete new = malloc(sizeof(struct p_autocomplete_t));
     new->items = NULL;
@@ -69,6 +71,11 @@ PAutocomplete p_obj_autocomplete_new(PStrFunc str_func, PCopyFunc copy_func,
     else
         new->free_func = (GDestroyNotify)free;
 
+    if (equal_deep_func)
+        new->equal_deep_func = equal_deep_func;
+    else
+        new->equal_deep_func = (PEqualDeepFunc)_deep_equals_func_default;
+
     return new;
 }
 
@@ -107,9 +114,14 @@ gboolean p_autocomplete_add(PAutocomplete ac, void *item)
             
             // update
             } else if (g_strcmp0(ac->str_func(curr->data), ac->str_func(item)) == 0) {
-                ac->free_func(curr->data);
+                // only update if data different
-                curr->data = item;
+                if (!ac->equal_deep_func(curr->data, item)) {
-                return TRUE;
+                    ac->free_func(curr->data);
+                    curr->data = item;
+                    return TRUE;
+                } else {
+                    return FALSE;
+                }
             }
             
             curr = g_slist_next(curr);
@@ -233,3 +245,7 @@ static const char *_copy_func_default(const char *orig)
     return strdup(orig);
 }
 
+static int _deep_equals_func_default(const char *o1, const char *o2)
+{
+    return (strcmp(o1, o2) == 0);
+}

prof_autocomplete.h

@@ -33,7 +33,7 @@ typedef int (*PEqualDeepFunc)(const void *o1, const void *o2);
 
 PAutocomplete p_autocomplete_new(void);
 PAutocomplete p_obj_autocomplete_new(PStrFunc str_func, PCopyFunc copy_func, 
-    GDestroyNotify free_func);
+    PEqualDeepFunc equal_deep_func, GDestroyNotify free_func);
 void p_autocomplete_clear(PAutocomplete ac);
 void p_autocomplete_reset(PAutocomplete ac);
 gboolean p_autocomplete_add(PAutocomplete ac, void *item);

test_prof_autocomplete.c

@@ -15,8 +15,11 @@ static void clear_empty(void)
 
 static void clear_empty_with_free_func(void)
 {
-    PAutocomplete ac = p_obj_autocomplete_new(NULL, NULL, 
+    PAutocomplete ac = 
-        (GDestroyNotify)p_contact_free);
+        p_obj_autocomplete_new((PStrFunc)p_contact_name,
+                               (PCopyFunc)p_contact_copy,
+                               (PEqualDeepFunc)p_contacts_equal_deep,
+                               (GDestroyNotify)p_contact_free);
     p_autocomplete_clear(ac);
 }
 
@@ -46,8 +49,11 @@ static void get_after_create_returns_null(void)
 
 static void get_after_create_with_copy_func_returns_null(void)
 {
-    PAutocomplete ac = p_obj_autocomplete_new(NULL, (PCopyFunc)p_contact_copy,
+    PAutocomplete ac = 
-        (GDestroyNotify)p_contact_free);
+        p_obj_autocomplete_new((PStrFunc)p_contact_name,
+                               (PCopyFunc)p_contact_copy,
+                               (PEqualDeepFunc)p_contacts_equal_deep,
+                               (GDestroyNotify)p_contact_free);
     GSList *result = p_autocomplete_get_list(ac);
 
     assert_is_null(result);
@@ -70,8 +76,11 @@ static void add_one_and_complete(void)
 static void add_one_and_complete_with_funcs(void)
 {
     PContact contact = p_contact_new("James", "Online", "I'm here");
-    PAutocomplete ac = p_obj_autocomplete_new((PStrFunc)p_contact_name, NULL, 
+    PAutocomplete ac = 
-        (GDestroyNotify)p_contact_free);
+        p_obj_autocomplete_new((PStrFunc)p_contact_name,
+                               (PCopyFunc)p_contact_copy,
+                               (PEqualDeepFunc)p_contacts_equal_deep,
+                               (GDestroyNotify)p_contact_free);
     p_autocomplete_add(ac, contact);
     char *result = p_autocomplete_complete(ac, "Jam");
 
@@ -98,8 +107,11 @@ static void add_two_and_complete_returns_first_with_funcs(void)
 {
     PContact contact1 = p_contact_new("James", "Online", "I'm here");
     PContact contact2 = p_contact_new("Jamie", "Away", "Out to lunch");
-    PAutocomplete ac = p_obj_autocomplete_new((PStrFunc)p_contact_name, NULL,
+    PAutocomplete ac = 
-        (GDestroyNotify)p_contact_free);
+        p_obj_autocomplete_new((PStrFunc)p_contact_name,
+                               (PCopyFunc)p_contact_copy,
+                               (PEqualDeepFunc)p_contacts_equal_deep,
+                               (GDestroyNotify)p_contact_free);
     p_autocomplete_add(ac, contact1);
     p_autocomplete_add(ac, contact2);
     char *result = p_autocomplete_complete(ac, "Jam");
@@ -128,8 +140,11 @@ static void add_two_and_complete_returns_second_with_funcs(void)
 {
     PContact contact1 = p_contact_new("James", "Online", "I'm here");
     PContact contact2 = p_contact_new("Jamie", "Away", "Out to lunch");
-    PAutocomplete ac = p_obj_autocomplete_new((PStrFunc)p_contact_name, NULL, 
+    PAutocomplete ac = 
-        (GDestroyNotify)p_contact_free);
+        p_obj_autocomplete_new((PStrFunc)p_contact_name,
+                               (PCopyFunc)p_contact_copy,
+                               (PEqualDeepFunc)p_contacts_equal_deep,
+                               (GDestroyNotify)p_contact_free);
     p_autocomplete_add(ac, contact1);
     p_autocomplete_add(ac, contact2);
     char *result1 = p_autocomplete_complete(ac, "Jam");
@@ -158,8 +173,11 @@ static void add_two_adds_two_with_funcs(void)
 {
     PContact contact1 = p_contact_new("James", "Online", "I'm here");
     PContact contact2 = p_contact_new("Jamie", "Away", "Out to lunch");
-    PAutocomplete ac = p_obj_autocomplete_new((PStrFunc)p_contact_name, 
+    PAutocomplete ac = 
-        (PCopyFunc)p_contact_copy, (GDestroyNotify)p_contact_free);
+        p_obj_autocomplete_new((PStrFunc)p_contact_name,
+                               (PCopyFunc)p_contact_copy,
+                               (PEqualDeepFunc)p_contacts_equal_deep,
+                               (GDestroyNotify)p_contact_free);
     p_autocomplete_add(ac, contact1);
     p_autocomplete_add(ac, contact2);
     GSList *result = p_autocomplete_get_list(ac);
@@ -187,8 +205,11 @@ static void add_two_same_adds_one_with_funcs(void)
 {
     PContact contact1 = p_contact_new("James", "Online", "I'm here");
     PContact contact2 = p_contact_new("James", "Away", "Out to lunch");
-    PAutocomplete ac = p_obj_autocomplete_new((PStrFunc)p_contact_name, 
+    PAutocomplete ac = 
-        (PCopyFunc)p_contact_copy, (GDestroyNotify)p_contact_free);
+        p_obj_autocomplete_new((PStrFunc)p_contact_name,
+                               (PCopyFunc)p_contact_copy,
+                               (PEqualDeepFunc)p_contacts_equal_deep,
+                               (GDestroyNotify)p_contact_free);
     p_autocomplete_add(ac, contact1);
     p_autocomplete_add(ac, contact2);
     GSList *result = p_autocomplete_get_list(ac);
@@ -220,8 +241,11 @@ static void add_two_same_updates_with_funcs(void)
 {
     PContact contact1 = p_contact_new("James", "Online", "I'm here");
     PContact contact2 = p_contact_new("James", "Away", "Out to lunch");
-    PAutocomplete ac = p_obj_autocomplete_new((PStrFunc)p_contact_name, 
+    PAutocomplete ac = 
-        (PCopyFunc)p_contact_copy, (GDestroyNotify)p_contact_free);
+        p_obj_autocomplete_new((PStrFunc)p_contact_name,
+                               (PCopyFunc)p_contact_copy,
+                               (PEqualDeepFunc)p_contacts_equal_deep,
+                               (GDestroyNotify)p_contact_free);
     p_autocomplete_add(ac, contact1);
     p_autocomplete_add(ac, contact2);
     GSList *result = p_autocomplete_get_list(ac);