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handler: refactor some copy-pasta

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Signed-off-by: Steffen Jaeckel <jaeckel-floss@eyet-services.de>
This commit is contained in:
Steffen Jaeckel
2021-11-23 12:14:50 +01:00
parent 01f2c3128a
commit ae5484ebd5
1 changed files with 36 additions and 54 deletions
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90
src/handler.c
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@@ -46,6 +46,17 @@ static void _handler_item_remove(xmpp_handlist_t **head, xmpp_handlist_t *item)
}
}
static void _free_handlist_item(xmpp_ctx_t *ctx, xmpp_handlist_t *item)
{
if (item->u.ns)
xmpp_free(ctx, item->u.ns);
if (item->u.name)
xmpp_free(ctx, item->u.name);
if (item->u.type)
xmpp_free(ctx, item->u.type);
xmpp_free(ctx, item);
}
/** Fire off all stanza handlers that match.
* This function is called internally by the event loop whenever stanzas
* are received from the XMPP server.
@@ -124,13 +135,7 @@ void handler_fire_stanza(xmpp_conn_t *conn, xmpp_stanza_t *stanza)
if (!ret) {
/* handler is one-shot, so delete it */
_handler_item_remove(&conn->handlers, item);
if (item->u.ns)
xmpp_free(conn->ctx, item->u.ns);
if (item->u.name)
xmpp_free(conn->ctx, item->u.name);
if (item->u.type)
xmpp_free(conn->ctx, item->u.type);
xmpp_free(conn->ctx, item);
_free_handlist_item(conn->ctx, item);
}
}
item = next;
@@ -404,6 +409,16 @@ void xmpp_id_handler_delete(xmpp_conn_t *conn,
}
}
static int _dup_string(xmpp_ctx_t *ctx, const char *src, char **dest)
{
if (src) {
*dest = xmpp_strdup(ctx, src);
if (!(*dest))
return 1;
}
return 0;
}
/* add a stanza handler */
static void _handler_add(xmpp_conn_t *conn,
xmpp_handler handler,
@@ -432,43 +447,17 @@ static void _handler_add(xmpp_conn_t *conn,
if (!item)
return;
memset(item, 0, sizeof(*item));
item->user_handler = user_handler;
item->handler = handler;
item->userdata = userdata;
item->enabled = 0;
item->next = NULL;
if (ns) {
item->u.ns = xmpp_strdup(conn->ctx, ns);
if (!item->u.ns) {
xmpp_free(conn->ctx, item);
return;
}
} else
item->u.ns = NULL;
if (name) {
item->u.name = xmpp_strdup(conn->ctx, name);
if (!item->u.name) {
if (item->u.ns)
xmpp_free(conn->ctx, item->u.ns);
xmpp_free(conn->ctx, item);
return;
}
} else
item->u.name = NULL;
if (type) {
item->u.type = xmpp_strdup(conn->ctx, type);
if (!item->u.type) {
if (item->u.ns)
xmpp_free(conn->ctx, item->u.ns);
if (item->u.name)
xmpp_free(conn->ctx, item->u.name);
xmpp_free(conn->ctx, item);
}
} else
item->u.type = NULL;
if (_dup_string(conn->ctx, ns, &item->u.ns))
goto error_out;
if (_dup_string(conn->ctx, name, &item->u.name))
goto error_out;
if (_dup_string(conn->ctx, type, &item->u.type))
goto error_out;
/* append to list */
if (!conn->handlers)
@@ -479,6 +468,11 @@ static void _handler_add(xmpp_conn_t *conn,
tail = tail->next;
tail->next = item;
}
return;
error_out:
_free_handlist_item(conn->ctx, item);
}
/** Delete a stanza handler.
@@ -504,13 +498,7 @@ void xmpp_handler_delete(xmpp_conn_t *conn, xmpp_handler handler)
else
conn->handlers = item->next;
if (item->u.ns)
xmpp_free(conn->ctx, item->u.ns);
if (item->u.name)
xmpp_free(conn->ctx, item->u.name);
if (item->u.type)
xmpp_free(conn->ctx, item->u.type);
xmpp_free(conn->ctx, item);
_free_handlist_item(conn->ctx, item);
item = prev ? prev->next : conn->handlers;
} else {
prev = item;
@@ -674,13 +662,7 @@ void handler_system_delete_all(xmpp_conn_t *conn)
if (!item->user_handler) {
next = item->next;
_handler_item_remove(&conn->handlers, item);
if (item->u.ns)
xmpp_free(conn->ctx, item->u.ns);
if (item->u.name)
xmpp_free(conn->ctx, item->u.name);
if (item->u.type)
xmpp_free(conn->ctx, item->u.type);
xmpp_free(conn->ctx, item);
_free_handlist_item(conn->ctx, item);
item = next;
} else
item = item->next;