[Core] Add new switch_core_hash_insert_pointer(switch_hash_t *hash, const void *data) API to be able to insert data into a hash with an auto-generated key based on the data pointer. Cleanup switch_loadable_module_process() to not generate hash keys for stored events itself. Add unit-test.

src/switch_core_hash.c

@@ -55,6 +55,23 @@ SWITCH_DECLARE(switch_status_t) switch_core_hash_destroy(switch_hash_t **hash)
 	return SWITCH_STATUS_SUCCESS;
 }
 
+SWITCH_DECLARE(switch_status_t) switch_core_hash_insert_pointer(switch_hash_t *hash, const void *data)
+{
+	size_t bytes_required = snprintf(NULL, 0, "%p", data) + 1;
+	char *dkey = malloc(bytes_required);
+	size_t bytes_written = snprintf(dkey, bytes_required, "%p", data);
+
+	if (bytes_written > 0 && bytes_written < bytes_required) {
+		if (switch_hashtable_insert_destructor(hash, dkey, (void *)data, HASHTABLE_FLAG_FREE_KEY | HASHTABLE_DUP_CHECK, NULL)) {
+			return SWITCH_STATUS_SUCCESS;
+		}
+	}
+
+	switch_safe_free(dkey);
+
+	return SWITCH_STATUS_FALSE;
+}
+
 SWITCH_DECLARE(switch_status_t) switch_core_hash_insert_auto_free(switch_hash_t *hash, const char *key, const void *data)
 {
 	char *dkey = strdup(key);