*
* Copyright (C) 2008 Kay Sievers <kay.sievers@vrfy.org>
*
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
*/
#include <errno.h>
#include "libudev.h"
#include "libudev-private.h"
-/* last known version with this wire protocol */
+/* wire protocol magic must match */
#define UDEV_CTRL_MAGIC 0xdead1dea
enum udev_ctrl_msg_type {
UDEV_CTRL_SET_ENV,
UDEV_CTRL_SET_MAX_CHILDS,
UDEV_CTRL_SET_MAX_CHILDS_RUNNING,
+ UDEV_CTRL_SETTLE,
};
struct udev_ctrl_msg_wire {
int refcount;
struct udev_ctrl *uctrl;
struct udev_ctrl_msg_wire ctrl_msg_wire;
+ pid_t pid;
};
struct udev_ctrl {
return ctrl_send(uctrl, UDEV_CTRL_SET_MAX_CHILDS, count, NULL);
}
+int udev_ctrl_send_settle(struct udev_ctrl *uctrl)
+{
+ return ctrl_send(uctrl, UDEV_CTRL_SETTLE, 0, NULL);
+}
+
struct udev_ctrl_msg *udev_ctrl_receive_msg(struct udev_ctrl *uctrl)
{
struct udev_ctrl_msg *uctrl_msg;
goto err;
}
+ uctrl_msg->pid = cred->pid;
+
if (uctrl_msg->ctrl_msg_wire.magic != UDEV_CTRL_MAGIC) {
err(uctrl->udev, "message magic 0x%08x doesn't match, ignore it\n", uctrl_msg->ctrl_msg_wire.magic);
goto err;
return ctrl_msg->ctrl_msg_wire.intval;
return -1;
}
+
+pid_t udev_ctrl_get_settle(struct udev_ctrl_msg *ctrl_msg)
+{
+ if (ctrl_msg->ctrl_msg_wire.type == UDEV_CTRL_SETTLE)
+ return ctrl_msg->pid;
+ return -1;
+}