Partial implementation of the JSON module.

external/Jansson/memory.c

@@ -0,0 +1,69 @@
+/*
+ * Copyright (c) 2009-2014 Petri Lehtinen <petri@digip.org>
+ * Copyright (c) 2011-2012 Basile Starynkevitch <basile@starynkevitch.net>
+ *
+ * Jansson is free software; you can redistribute it and/or modify it
+ * under the terms of the MIT license. See LICENSE for details.
+ */
+
+#include <stdlib.h>
+#include <string.h>
+
+#include "jansson.h"
+#include "jansson_private.h"
+
+/* C89 allows these to be macros */
+#undef malloc
+#undef free
+
+/* memory function pointers */
+static json_malloc_t do_malloc = malloc;
+static json_free_t do_free = free;
+
+void *jsonp_malloc(size_t size)
+{
+    if(!size)
+        return NULL;
+
+    return (*do_malloc)(size);
+}
+
+void jsonp_free(void *ptr)
+{
+    if(!ptr)
+        return;
+
+    (*do_free)(ptr);
+}
+
+char *jsonp_strdup(const char *str)
+{
+    return jsonp_strndup(str, strlen(str));
+}
+
+char *jsonp_strndup(const char *str, size_t len)
+{
+    char *new_str;
+
+    new_str = jsonp_malloc(len + 1);
+    if(!new_str)
+        return NULL;
+
+    memcpy(new_str, str, len);
+    new_str[len] = '\0';
+    return new_str;
+}
+
+void json_set_alloc_funcs(json_malloc_t malloc_fn, json_free_t free_fn)
+{
+    do_malloc = malloc_fn;
+    do_free = free_fn;
+}
+
+void json_get_alloc_funcs(json_malloc_t *malloc_fn, json_free_t *free_fn)
+{
+    if (malloc_fn)
+        *malloc_fn = do_malloc;
+    if (free_fn)
+        *free_fn = do_free;
+}