+ simdb_record_del()

src/database.c

@@ -224,6 +224,32 @@ simdb_write(simdb_t *db, int start, int records, simdb_urec_t *data) {
   return records;
 }
 
+int
+simdb_record_del(simdb_t *db, int num) {
+  simdb_urec_t *rec;
+  int ret = 0;
+
+  assert(db != NULL);
+
+  if (num < 1)
+    return SIMDB_ERR_USAGE;
+
+  if (!(db->flags & SIMDB_FLAG_WRITE))
+    return SIMDB_ERR_READONLY;
+
+  if ((ret = simdb_read(db, num, 1, &rec)) < 1)
+    return ret;
+
+  rec->used = 0x0;
+
+  if ((ret = simdb_write(db, num, 1, rec)) < 1)
+    num = ret;
+
+  FREE(rec);
+
+  return num;
+}
+
 int
 simdb_records_count(simdb_t * const db) {
   struct stat st;

src/simdb-write.c

@@ -93,7 +93,7 @@ int main(int argc, char **argv)
       }
       break;
     case del :
-      if ((err = simdb_write(db, num, 1, (void *) &rec)) < 1) {
+      if ((err = simdb_record_del(db, num)) < 0) {
         fprintf(stderr, "%s\n", simdb_error(err));
         exit(EXIT_FAILURE);
       }

src/simdb.h

@@ -111,6 +111,16 @@ int simdb_search(simdb_t * const db, int num,
  */
 bool simdb_record_create(void * rec, const char *path);
 
+/**
+ * @brief Delete a record from database by num
+ * @param db  Database handle
+ * @param num Number of record to delete
+ * @retval <0 on error
+ * @retval  0 no record not exists
+ * @retval >0 as on success
+ */
+int simdb_record_del(simdb_t *db, int num);
+
 /**
  * @brief Get database capacity
  */